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Leak detection method for electrical heating tube orifice of inner container of solar water heater

A solar water heater and electric heating technology, which is applied in the direction of measuring the increase and decrease rate of the fluid, and using the liquid/vacuum degree to measure the liquid tightness, etc., can solve the problems that are not suitable for mass industrial production and affect production efficiency, and achieve inspection Good leakage effect, improved production efficiency and high detection efficiency

Inactive Publication Date: 2012-02-22
SHANDONG LINUO PARADIGMA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method greatly affects production efficiency and is not suitable for mass industrial production

Method used

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  • Leak detection method for electrical heating tube orifice of inner container of solar water heater
  • Leak detection method for electrical heating tube orifice of inner container of solar water heater
  • Leak detection method for electrical heating tube orifice of inner container of solar water heater

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Embodiment Construction

[0011] The leak detection method of the electric heating nozzle of the inner tank of the solar water heater comprises the following steps:

[0012] (1) Put a sealed tank 1 on the outer surface of the electric heating nozzle on the inner tank that has been installed with electric heating, and hold the sealed tank 1 with your hands.

[0013] (2) if figure 1 As shown, the sealed tank 1 is connected with a vacuum pump 3 through the air pipe 2, and the sealed tank 1 is evacuated by the vacuum pump 3, so that the sealed tank 1 is adsorbed on the inner liner, that is, the pressure difference between the outside and the inside of the sealed tank 1 is greater than its gravity.

[0014] The vacuum pump 3 is connected as figure 2 The shown controller includes transformer BK, air switch SF1, foot switch SF2, time relay KT, relay KM1 and relay KM2. The output end of the transformer BK, the working circuit of the relay KM1, the working circuit of the relay KM2 and the motor M of the vacu...

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Abstract

The invention discloses a leak detection method for an electrical heating tube orifice of an inner container of a solar water heater. The method comprises the followings steps that: (1), a sealable tank is covered outside an electrical heating tube orifice on an inner container on which an electrical heater has been installed; (2), vacuum pumping is carried out on the sealable tank so as to enable the sealable tank to be absorbed on the inner container; (3), gas filling is carried out on the inner container; (4), the inner container is rotated and it is determined whether the electrical heating tube orifice is leaked or not according to the state of the sealable tank; if the sealable tank falls from the inner container, it demonstrated that the electrical heating tube orifice is leaked; if the sealable tank does not fall from the inner container, it is demonstrated that the electrical heating tube orifice is not leaked. According to the invention, air pressures at two side of an electrical heating tube orifice on an inner container are changed, so that it can be detected whether the electrical heating tube orifice is leaked and it is necessary to carry out leak detection by using water; therefore, an electrical heater can be installed before detection and the leakage effect is better than that of the leak detection by using water. Besides, it is not needed to sealing the electrical heating tube orifice additionally during the detection; and the detection is simple and the detection efficiency is high.

Description

technical field [0001] The invention relates to a nozzle leak detection method, in particular to a leak detection method for an electric heating nozzle of a solar water heater inner tank. Background technique [0002] In order to ensure that the solar water heater can be used in rainy weather, the general solar water heater is equipped with electric heating auxiliary energy. During production, it is necessary to check the leak of the electric heating nozzle of the inner tank of the solar water heater, and detect the welding seam between the electric heating nozzle and the inner tank. And the connection between the electric heating nozzle and the electric heating, the current leak detection method is to detect leaks by testing the water, because the electronic components cannot directly contact the water, if the electric heating nozzle leaks, the water will be heated from the electric heating during the water test. The nozzle enters the inner tank and damages the electronic c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/28
Inventor 陈彬彬赵建胡玉涛丁倩苏士强
Owner SHANDONG LINUO PARADIGMA
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