JPS5828188Y2 - Water level gauge for cold regions - Google Patents

Description

[Detailed description of the invention] This invention is for measuring the water level under the ice in wells, rivers, etc. that are frozen in winter in cold regions.

If the measurement well freezes, it will be impossible to measure with a floating water level gauge, so to prevent freezing, a large amount of oil is poured into the well to create an oil layer above the water surface, or a heater is wrapped around the float to take measurements. However, the former causes oil pollution such as oil spills,
In the latter case, water vapor due to evaporation of water from the heater section freezes in the upper part of the well, making it impossible to maintain the water vapor.

The present invention corrects these shortcomings and enables the process to be performed with low power consumption.

To explain this with reference to the figure, 1 is a float, and its vertical movement causes the pulley 5 to rotate, and the rotation of its shaft causes the recorder 4 to record changes in the water level.

A liquid 3 is placed inside the float 1, and the liquid is heated by a metal cylindrical electric heater 2 immersed in the liquid, so that the float is constantly heated through the liquid.

Therefore, the area around the float does not freeze, the float 1 floats on the water surface 12 inside the ice plate 13, and the water level of the water surface 12 is recorded.

6 is the wire that hangs the float, and it is connected to the groove 1 of the pulley shown in Figure 2.
4 and tensioned by weight 7.

Reference numeral 8 denotes a two-core flexible insulated wire connected to the electric heater 2, which is wound around the pulley groove 15, passed through the hole 9, wound around the small pulley 10, passed through the tension pulley 11, and then passed through the recorder 4.
It is connected to an AC power source inside.

Due to this way of hanging the wires and electric wires, there is almost no increase in friction caused by power supply to the electric wire 8 on the pulley 5, and this water level gauge can accurately record the water level on the water surface 12.

According to the present invention, the liquid 3 in the float 1 is heated by the electric heater 2 and becomes hot water, which warms the float 1. Therefore, the resistance of heat transfer from the electric heater 2 to the float 1 is small, and the heating efficiency is high. It is very good and because it uses liquid heating, the entire float 1 can be heated uniformly, and it has a large heat capacity and can withstand sudden changes in water temperature.The heat absorption and release from the electric heater 2 is efficient, resulting in high thermal efficiency. It is an economical and energy-saving type that requires significantly less power than conventional technology that uses air as a medium.

Furthermore, by enclosing the thermostat in the liquid, temperature control can be easily and uniformly performed compared to placing the thermostat in the air, and the structure is simple because the float 1 itself serves as the apparent heating source. Yes, it is convenient to grow in cold regions.

Furthermore, the wire 6 for suspending the electric wire 1 for power supply and the wire 6 hanging in the atmosphere are combined into one and connected to the float 1, so the float 1 can float freely and there are no unnecessary objects in the water, making it easy to handle. This has the advantage that heating and water level measurements can be easily performed.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the structure of the present invention, and FIG. 2 is a front view of the pulley. 1...Uki, 2...Electric heater, 3...
...Liquid, 4...Water level recorder, 5...
Pulley, 6... Wire, 7... Weight that tensions 6. 8... Electric wire to electric heater, 12...
...Water surface, 13...Ice plate.

Claims (1)

[Scope of utility model registration request] In a float-type water level gauge, an electric heater 2 and a liquid 3 are placed inside a float 1, and an electric wire for supplying power to the electric heater 2 and a wire 6 for suspending the float 1 are made into one piece. A water level gauge for cold regions that was suspended in the atmosphere and used in conjunction with Uki 1.