Self-sealing type ultraviolet lamp and manufacturing method thereof

Abstract

The invention discloses a self-sealing type ultraviolet lamp which comprises an ultraviolet lamp tube and a lamp holder. A positioning hole is arranged in the lamp holder, wherein the lamp tube is inserted into the positioning hole. The ultraviolet lamp tube is a U-shaped lamp tube. The ultraviolet lamp tube is provided with two electrodes on the same side. One end, which is provided with the electrodes, of the ultraviolet lamp tube is packaged in the lamp holder through the positioning hole, extends out of the lamp holder from the bottom of the lamp holder, and is exposed. The self-sealing type ultraviolet lamp is characterized in that a space between the wall of the inserted end of the ultraviolet lamp tube and the positioning hole is filled with an insulating sealant, and the ultraviolet lamp tube and the lamp holder are in seal connection through the insulating sealant. The lamp tube and the lamp holder are connected through the insulating sealant, so that waterproof and sealing performances are great. The wall of the lamp tube can directly contact water, and leakage is prevented. All ultraviolet energy emitted by the lamp tube can enter water without energy loss. The rubber elasticity of the insulating sealant can provide buffer protection for the lamp tube, which reduces scrap rate in a special design process of the ultraviolet lamp tube.

Description

technical field [0001] The invention relates to an ultraviolet lamp applied to water treatment equipment, in particular to a self-sealing ultraviolet lamp and a manufacturing method thereof. Background technique [0002] Low-pressure ultraviolet lamps in the UVC band are often used in water treatment equipment to play a role in sterilization or photolysis purification. When the current ultraviolet lamps are used in water treatment equipment, quartz sleeves must be used to cover the outside of the ultraviolet lamps to seal and waterproof the ultraviolet lamps. However, the use of quartz sleeves has the following defects: (1) The UV transmittance of the best quartz sleeve can only reach 80% to 90%, so it will cause the loss of energy of the ultraviolet lamp; (2) when the ultraviolet lamp is used in water treatment equipment, due to the Isolation makes the cooling effect of the water body on the lamp tube greatly weakened, so when the power density of the lamp tube is high, an...

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Problems solved by technology

When the current ultraviolet lamps are used in water treatment equipment, quartz sleeves must be used to cover the outside of the ultraviolet lamps to seal and waterproof the ultraviolet lamps. However, the use of quartz sleeves has the following defects: (1) The UV transmittance of the best quartz sleeve can only reach 80% to 90%, so it will cause the loss of energy of the ultraviolet lamp; (2) when the ultraviolet lamp is used in water treatment equipment, due to the Isolation makes the cooling effect of the water body on the lamp tube greatly weakened, so when the power density of the lamp tube is high, an expensive amalgam lamp must be used; (3) When 185nm ultraviolet rays need to be used to remove TOC or organic matter in water, the application The existing ultraviolet lamp tube must use a quartz sleeve, and the air sealed between the lamp tube and the quartz sleeve will produce a high concentration of O under the irradiation of 185nm ultraviolet rays. 3 , while O 3 It has a strong absorption effect on ultraviolet rays, coupled with the absorption of ultraviolet rays by the casing wall, the effective ultraviolet energy that can enter the water is greatly reduced, and the use efficiency of ultraviolet lamps is very poor.

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