KR100877562B1 - Non contacting ultraviolet liquid treatment apparatus and method using the same - Google Patents

Abstract

A non-contact type ultraviolet water treatment apparatus is provided to increase decomposition performance and sterilization efficiency of contaminants by forming a gas layer between a ultraviolet lamp and contaminated water to be treated and maintaining a non-contact state between the ultraviolet lamp and the contaminated water to be treated, thereby increasing transmittance of ultraviolet rays from the ultraviolet lamp, and a water treatment method using the same is provided. A non-contact type ultraviolet water treatment apparatus(100) comprises a housing(110), a ultraviolet lamp(120), a gas layer(130), a water level sensor(140), and a gas supply pipe(150). The housing has its bottom face opened. The ultraviolet lamp is installed within the housing. The ultraviolet lamp generates ultraviolet rays. The gas layer protects the ultraviolet lamp to prevent the ultraviolet lamp from being brought into contact with the surface of the water. The water level sensor maintains the water level constantly by sensing a water level within the housing and controlling the supply amount of gas, thereby constantly maintaining the gas layer. The gas supply pipe is connected to the housing to supply the gas into the housing.

Description

Non contacting ultraviolet liquid treatment apparatus and method using the same

The present invention relates to an ultraviolet water treatment apparatus and a water treatment method using the same, and more particularly, by placing a gas layer between the ultraviolet lamp and the contaminated treated water so that the ultraviolet lamp and the protection device do not directly contact the treated water. The present invention relates to a non-contact UV water treatment device and a water treatment method using the same, which can prevent contamination of an ultraviolet lamp and thus do not need to be washed, and increase the UV transmittance and increase the decomposition performance and sterilization efficiency of the pollutant.

In general, the sewage or sewage flowing into the sewage treatment plant or sewage treatment plant contains various kinds of sewage or bacteria, and chemicals, chlorine, ozone, and ultraviolet rays are used to disinfect the bacteria contained in the sewage or sewage.

When chemicals are added to sterilize bacteria or disinfect using chlorine, they cause secondary pollution by leaving other chemicals or residual chlorine or residues or forming other compounds after disinfection. Use is being avoided. In addition, the ozone treatment method has a high installation cost and operating cost, the problem of the ozone treatment occurs, so the effectiveness is somewhat reduced, UV disinfection method is preferred as an alternative.

Ultraviolet disinfection is a method of disinfecting bacteria contained in sewage with ultraviolet light emitted from an ultraviolet lamp by installing a lamp in water. Ultraviolet rays have a photochemical reaction, a bactericidal action, and ozone generating action.

The sewage contact type sterilizer installed in the sewage treatment plant is arranged up and down while maintaining a plurality of UV lamps at regular intervals, and both ends of the UV lamps are fixed in a frame to sterilize E. coli in the treated water discharged from the sewage treatment plant.

However, since the UV lamp is immersed in the sewage, the UV lamp or the protection device (quartz tube, etc.) has to be in direct contact with the sewage. Therefore, as the use time elapses, contaminated water causes moss or foreign matters to adhere to the surface of the ultraviolet lamp or the protective device, impedes the transmission of ultraviolet rays, thereby lowering the transmission efficiency and decreasing sterilization power. Therefore, the surface of the ultraviolet lamp or the protective device is cleaned to remove foreign matters such as moss, and the life of the lamp is shortened by the sewage contacting the ultraviolet lamp directly.

For this reason, a complicated mechanical and chemical lamp cleaning method is introduced to clean the surface of the ultraviolet lamp, but there is a problem that there is a concern that the quartz tube may be broken, contamination due to the input of the cleaning agent, and maintenance costs due to complicated facilities are increased. .

The present invention devised to solve the problems of the prior art as described above to maintain a non-contact state by placing a gas layer between the ultraviolet lamp and the contaminated water to be treated, there is no need to clean and prevent the contamination of the ultraviolet lamp by contaminants. It is an object of the present invention to provide a non-contact UV water treatment apparatus and a water treatment method using the same, which can increase the transmittance of ultraviolet rays to increase the decomposition performance and sterilization efficiency of pollutants.

In addition, another object of the present invention is to provide a non-contact UV water treatment apparatus and a water treatment method using the non-contact UV lamp to configure the non-contact UV lamp can increase the efficiency is not significantly affected by the water temperature, and to reduce the temperature deviation.

In addition, the present invention provides a non-contact UV water treatment device and a water treatment method using the same to easily manufacture a non-immersion type water treatment device by modularizing the non-contact UV lamp, and to combine a plurality of one or more modules conveniently. There is another purpose.

The object of the present invention is a water treatment apparatus, comprising: a housing having an open lower surface; An ultraviolet lamp installed inside the housing and generating ultraviolet light; And a gas layer that protects the ultraviolet lamp from contact with the surface of the water.

In addition, another object of the present invention is a water treatment apparatus module, comprising: a housing; An ultraviolet lamp installed inside the housing and generating ultraviolet light; And a gas layer which protects the ultraviolet lamp from contact with the surface of the water, and is formed by a non-immersion type, in which the water to be treated flows into the housing and is processed.

In addition, the water treatment apparatus of the present invention is to detect the water level in the housing to adjust the amount of gas supply to maintain a constant gas level by maintaining a constant water level; And preferably connected to the housing further comprises a gas supply pipe for supplying gas.

In addition, the water level sensor of the present invention is preferably to turn off the ultraviolet lamp automatically when the water flow rate of the water to be treated is reduced to lower than a predetermined portion of the housing.

In addition, it is preferably configured to further include a reflector to maximize the ultraviolet irradiation intensity by reflecting the ultraviolet light generated by the ultraviolet lamp of the present invention.

In addition, it is preferable that the end of the reflecting plate of the present invention is installed in contact with the housing or spaced between the housing and the housing.

In addition, the reflector of the present invention is preferably partially installed on the inner wall of the housing.

In addition, the ultraviolet lamp of the present invention is preferably composed of any one or any combination of at least one selected from the ultraviolet lamp for sterilization, the ultraviolet lamp for ozone generation and the multi-wavelength lamp.

In addition, the ultraviolet lamp of the present invention is preferably configured to include a protective device selected from quartz tube, glass tube and fluorine resin tube.

In addition, the water treatment apparatus of the present invention is preferably configured to further include a photocatalyst for oxidizing or decomposing the water to be treated by the catalytic reaction by the ultraviolet light to be irradiated.

In addition, another object of the present invention is a first step of introducing the water to be treated containing contaminants into the inlet to the housing area equipped with an ultraviolet lamp; A second step of detecting a level of the water to be treated in the housing and maintaining a non-contact between the ultraviolet lamp and the water to be treated by constantly maintaining a gas layer filled in the interior space of the housing; A third step of transmitting the ultraviolet light generated by the ultraviolet lamp through the water to be treated; And a fourth step of releasing the sterilized treated water to the outside through an outlet.

In addition, the second step of the present invention includes a gas supply step of supplying a gas to lower the water level when the water level inside the housing reaches a set water level upper limit; And a gas supply stopping step of stopping the gas supply when the set water level reaches a lower limit due to the gas supply.

In addition, the gas supply step and the gas supply stop step of the present invention is preferably made by the water level sensor to detect the water level.

In addition, the water level sensor of the present invention is preferably to turn off the ultraviolet lamp automatically when the flow rate of the water to be treated is reduced to lower the water level than a predetermined portion of the housing.

Therefore, the non-contact UV water treatment apparatus of the present invention and the water treatment method using the same do not need to clean and prevent the contamination of the ultraviolet lamp by the contaminant by placing a gas layer between the ultraviolet lamp and the contaminated water to maintain a non-contact state, There is a remarkable and advantageous effect of increasing the transmittance of ultraviolet rays to increase the decomposition performance and sterilization efficiency of pollutants.

In addition, the non-contact ultraviolet water treatment apparatus and the water treatment method using the same of the present invention does not require a protective device such as a quartz tube has a remarkable and advantageous effect that can simply manufacture the device.

In addition, the non-contact UV water treatment apparatus of the present invention and the water treatment method using the same is non-contact because it is not significantly affected by the water temperature can increase the efficiency, there is a significant and advantageous effect that can reduce the temperature deviation.

In addition, the non-contact UV water treatment apparatus of the present invention and the water treatment method using the same do not need a separate device for stabilizing the water to be treated, there is a remarkable and advantageous effect that can significantly reduce the cost of civil engineering.

In addition, the non-contact ultraviolet water treatment device of the present invention is modular, so that the non-immersion type water treatment device can be easily manufactured, and one or more modules can be conveniently combined to form a plurality, so that it is easy to cope with variations in water treatment capacity. It has a beneficial effect.

The terms or words used in this specification and claims are not to be construed as being limited to their ordinary or dictionary meanings, and the inventors may appropriately define the concept of terms in order to best describe their invention. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view showing a non-contact water treatment apparatus according to a first embodiment of the present invention.

The non-contact water treatment apparatus 100 according to the first embodiment of the present invention includes a housing 110, an ultraviolet lamp 120, a gas layer 130, a water level detector 140, a gas supply pipe 150, and a gas supply source 160. It is configured to include.

The housing 110 has an open lower surface, and the ultraviolet lamp 120 is fixed to the housing 110. The housing 110 provided with the ultraviolet lamp 120 has a structure immersed in the water to be treated.

The ultraviolet lamp 120 serves to generate ultraviolet rays to sterilize the water to be treated and to perform a chemical reaction. In addition, the water level sensor 140 serves to adjust the gas supply by sensing the level of the water to be treated in the housing.

The non-contact water treatment apparatus 100 of the present invention supplies gas (air, oxygen, etc.) into the housing 110 to form the gas layer 130 so that the ultraviolet lamp 120 does not directly contact the surface of the water to be treated. The structure is characteristic.

In addition, the water treatment device of the present invention is characterized in that the water level sensor 140 is installed so that the gas layer does not decrease even when the pressure of the gas layer changes due to the flow rate of the water to be treated.

When the gas layer decreases due to an increase in the flow rate of the water to be treated, and the water level in the housing 110 reaches an upper limit of the set water level, the water level sensor detects this and supplies the gas through the gas supply pipe 150. . When the water level in the housing 110 reaches the lower limit of the set water level due to the gas supply, the water level sensor detects this to stop the gas supply.

By repeating the gas supply step and the gas supply stop step, the water level is kept constant between the water level upper limit value and the water level lower limit value, and the gas layer 130 is kept constant so that the UV lamp 120 maintains no contact with the water to be treated. To keep it.

The gas layer 130 is filled in the housing 110 to protect the ultraviolet lamp 120 from contact with the water to be treated and to maintain the non-contact state. This eliminates the need for a protective device such as a quartz tube, and does not cause contamination of the surface of the ultraviolet lamp by contaminants such as moss and foreign matter. Therefore, by maintaining a constant transmittance of ultraviolet rays, it is possible to maintain a relatively high water treatment efficiency compared to the contaminated ultraviolet lamps. In addition, there is no need to clean the ultraviolet lamp, there is an advantage that the device is also simplified.

However, if necessary, a protective device selected from a quartz tube, a glass tube, a fluorine resin tube, or the like may be provided in the ultraviolet lamp. These protective devices are preferably made of a material having a high UV transmittance so that ultraviolet light can pass through well.

In addition, the non-contact water treatment apparatus 100 of the present invention may further comprise a photocatalyst for oxidizing or decomposing the water to be treated by the catalytic reaction by the ultraviolet rays irradiated to increase the water treatment efficiency.

Since the ultraviolet lamp 120 of the present invention is non-contact with the water to be treated, it is not significantly affected by the water temperature, thereby increasing efficiency, and reducing the temperature deviation than the conventional ultraviolet lamp. In general, in the case of a low-pressure low-output lamp, when the surface temperature of the lamp is 40 ℃, the ultraviolet irradiation intensity is the highest and the efficiency is high.

In addition, when the flow rate of the water to be treated decreases so that the water level is lower than a predetermined portion of the housing 110, the water level detector 140 detects this and automatically turns off the ultraviolet lamp 120.

The ultraviolet lamp 120 of the present invention is composed of a lamp of the sterilization wavelength band (253.7nm) for the purpose of sterilization only, it is preferable to install an ozone generating ultraviolet lamp when additional ozone treatment is required. If necessary, a suitable combination of the two (for example, a combination of 253.7 nm and 184.9 nm wavelength bands) may be configured, and a multi-wavelength lamp or the like may be provided according to the purpose.

2 is a cross-sectional view showing a non-contact water treatment apparatus according to a second embodiment of the present invention.

The non-contact water treatment apparatus 200 according to the second embodiment of the present invention includes a housing 210, an ultraviolet lamp 220, a gas layer 230, a reflector 240, a water level detector 250, a gas supply pipe 260, and a gas. And a source 270. Compared with the non-contact water treatment apparatus of the first embodiment, all other configurations, conditions, and roles are the same except that there is more reflecting plate 240.

The reflection plate 240 is installed inside the housing to reflect the ultraviolet light 280 generated by the ultraviolet lamp 220 and irradiated to the upper side to maximize the irradiation intensity of ultraviolet light transmitted to the water to be treated.

Looking at the water treatment process of the water to be treated using the non-contact water treatment device of the present invention.

First, the contaminated treated water to be sterilized is introduced into the housings 110 and 210 provided with the ultraviolet lamps 120 and 220 through the inlet port 180. Here, the water level detectors 140 and 250 sense the level of the water to be treated in the housing, and maintain the gas layers 130 and 230 filled in the housing interior constant to maintain non-contact between the UV lamp and the water to be treated. Let's do it.

When the ultraviolet lamps 120 and 220 are operated, ultraviolet rays 170 and 280 generated by the ultraviolet lamps are transmitted to the water to be treated to treat microorganisms, E. coli, and contaminants present in the water. The treated water thus treated is discharged to the outside through the outlet 190.

3 to 4 is a view showing that the ultraviolet lamp is installed in the reflector according to the present invention. The ultraviolet lamp can be composed of only the ultraviolet lamp 310 for sterilization as shown in Figure 3, in order to induce an increase in the water treatment efficiency according to the interaction of ozone and ultraviolet rays, the ultraviolet lamp 410 for sterilization and ozone generation as shown in Figure 4 The ultraviolet ray lamp 420 may be installed in combination. The space between the ultraviolet lamps represents the gas layers 320, 430.

The non-contact water treatment apparatus according to the present invention solves the pollution problem of reducing the transmittance of ultraviolet rays by configuring the ultraviolet irradiation unit in such a way that the ultraviolet lamp or the protective film does not come into contact with the water to be treated, and the surface temperature of the lamp due to the water temperature fluctuation upon direct contact. It solves the problems such as the decrease in ultraviolet efficiency due to the drop.

5 to 7 is a side view showing an embodiment according to the shape of the reflector of the present invention.

5 illustrates a form in which an end of the reflecting plate 530 is in contact with an inner wall of the housing 510. In this case, no gas is filled in the space between the housing 510 and the reflector 530, and a gas layer is formed only inside the reflector 530. Therefore, since the vaporized high temperature water vapor is cooled by being in direct contact with the outside of the low temperature, water vapor condenses inside the reflector 530.

6, the end of the reflective plate 630 and the inner wall of the housing 610 are spaced apart, so that a space exists between the reflective plate 630 and the space between the reflective plate 630 and the housing 610. As a result, the vaporized high temperature water vapor may be convection, and the temperature difference between the inside and the outside of the reflecting plate 630 may be reduced to prevent condensation of the water vapor inside the reflecting plate 630 to maintain a constant UV reflectance.

7 illustrates that the reflecting plate 730 is partially installed on the inner wall of the housing 710. This may selectively install the reflector 730 only in the part where the ultraviolet rays are highly reflected.

8A to 8B are cross-sectional views of a non-contact water treatment apparatus module according to a third embodiment of the present invention, and FIGS. 9A to 9B are cross-sectional views of a non-contact water treatment apparatus module according to a fourth embodiment of the present invention. 10 shows that a plurality of ultraviolet lamps are attached to the non-contact water treatment device module of the present invention.

8A to 8B show that one lamp is installed in the module, and FIG. 10 shows that a plurality of lamps are installed in the module.

The water treatment device module 800 includes a housing 810, an ultraviolet lamp 820, and a power connection device 850. Although not shown in the drawing, a gas supply pipe and a gas supply source are connected to the housing 810 to supply a gas to form a gas layer 860 that protects the ultraviolet lamp from contact with the surface of the water.

In addition, the water level sensor 830 or the reflector 840 may be further included.

The water treatment device module 800 is not immersed in the water to be treated, but is formed in a non-immersion type. The water treatment device module 800 flows the water into the module for treatment, and then is sent out.

Therefore, if the water treatment apparatus is modularized, it can be easily manufactured. As shown in FIG. 9, one or more modules can be conveniently configured and installed, so that it is easy to cope with variations in water treatment capacity. In addition, because it is not immersed, unlike the conventional immersion type ultraviolet device, there is no need for a separate device for stabilization of the water to be treated, it is possible to significantly reduce the cost of civil engineering.

It is apparent that the non-contact UV water treatment apparatus and method according to the present invention can be used in all fields requiring water treatment throughout the industry, such as sewage treatment plants, wastewater treatment plants, manure treatment plants, and production processes of factories.

In the field of application, it can be used in various fields besides pharmaceutical companies, soft drink factories, agricultural and marine products plants, horticultural cultivation, pesticide-free cultivation, agricultural and marine products storage, textile factories, dyeing factories, electronic industries, hotels, food manufacturing and processing companies, general hospitals, apartment complexes, broadcasting stations It can be used as.

Although the present invention has been shown and described with reference to the preferred embodiments as described above, it is not limited to the above embodiments and those skilled in the art without departing from the spirit of the present invention. Various changes and modifications will be possible.

1 is a cross-sectional view showing a non-contact water treatment apparatus according to a first embodiment of the present invention

2 is a cross-sectional view showing a non-contact water treatment apparatus according to a second embodiment of the present invention.

Figure 3 is a cross-sectional view showing that the ultraviolet lamp for sterilization of the present invention is installed

Figure 4 is a cross-sectional view showing a combination of UV lamp for sterilization and ozone generation of the present invention in combination

5 to 7 is a side view showing an embodiment according to the shape of the reflector of the present invention

8A to 8B are cross-sectional views showing a contactless water treatment device module according to a third embodiment of the present invention.

9A to 9B are cross-sectional views showing a contactless water treatment device module according to a fourth embodiment of the present invention.

10 is a cross-sectional view showing a plurality of ultraviolet lamps mounted on the non-contact water treatment device module of the present invention.

<Explanation of symbols for the main parts of the drawings>

100 non-contact water treatment device 110 housing

120: ultraviolet lamp 130: gas layer

140: water level detector 150: gas supply pipe

160: gas supply source 170: ultraviolet

180: inlet 190: outlet

Claims (14)

In the water treatment apparatus, A housing having an open lower surface; An ultraviolet lamp installed inside the housing and generating ultraviolet light; A gas layer which protects the ultraviolet lamp from contact with water; A water level sensor that maintains a constant level by sensing a level in the housing to adjust a gas supply to maintain a constant gas layer; And A gas supply pipe connected to the housing to supply gas Non-contact ultraviolet water treatment device comprising a. In the water treatment apparatus module, housing; An ultraviolet lamp installed inside the housing and generating ultraviolet light; A gas layer which protects the ultraviolet lamp from contact with water; A water level sensor that maintains a constant level by sensing a level in the housing to adjust a gas supply to maintain a constant gas layer; And A gas supply pipe connected to the housing to supply gas A non-contact UV water treatment apparatus comprising a non-immersion type, the treated water flows into the housing. delete The method according to claim 1 or 2, The water level sensor is a non-contact UV water treatment device for automatically extinguishing the UV lamp when the water flow rate of the water to be treated is reduced to lower than a predetermined portion of the housing. The method according to claim 1 or 2, Non-contact UV water treatment device further comprises a reflector for maximizing the ultraviolet irradiation intensity by reflecting the ultraviolet light generated by the ultraviolet lamp. The method of claim 5, Non-contact UV water treatment device is installed in the form in which the end of the reflecting plate is in contact with the housing or spaced between the housing and spaced. The method of claim 5, The reflector is a non-contact UV water treatment device partially installed on the inner wall of the housing. The method according to claim 1 or 2, The ultraviolet lamp is a non-contact UV water treatment apparatus configured by selecting any one or more of the ultraviolet lamp for sterilization, the ultraviolet lamp for ozone generation, and the multi-wavelength lamp. The method of claim 8, The ultraviolet lamp is a non-contact UV water treatment apparatus further comprises a protective device selected from quartz tube, glass tube and fluorine resin tube. The method according to claim 1 or 2, The water treatment apparatus further comprises a photocatalyst for oxidizing or decomposing the water to be treated by the catalytic reaction by the irradiated ultraviolet rays. A first step of introducing the water to be treated containing contaminants into the inlet to be introduced into the housing area with the ultraviolet lamp; A second step of detecting a level of the water to be treated in the housing and maintaining a non-contact between the ultraviolet lamp and the water to be treated by constantly maintaining a gas layer filled in the interior space of the housing; A third step of transmitting the ultraviolet light generated by the ultraviolet lamp through the water to be treated; And A fourth step of discharging the treated water to the outside through an outlet Water treatment method using a non-contact ultraviolet water treatment device comprising a. The method of claim 11, The second step is A gas supply step of supplying gas to lower the water level when the water level inside the housing reaches a set water level upper limit value; And Gas supply stop step of stopping the gas supply when the set water level reaches the lower limit due to the gas supply Water treatment method using a non-contact ultraviolet water treatment device comprising a. The method of claim 11, The gas supply step and the gas supply stop step is a water treatment method using a non-contact UV water treatment device is made by the water level sensor to detect the water level. The method of claim 11, The water level sensor is a water treatment method using a non-contact UV water treatment device that automatically turns off the UV lamp when the water level is lower than a predetermined portion of the housing by reducing the flow rate of the water to be treated.

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