WO2021056723A1

WO2021056723A1 - Ultraviolet fluid treatment device

Info

Publication number: WO2021056723A1
Application number: PCT/CN2019/117152
Authority: WO
Inventors: 楼军伟; 魏雨晴
Original assignee: 上海紫奕光电科技有限公司
Priority date: 2019-09-25
Filing date: 2019-11-11
Publication date: 2021-04-01
Also published as: CN110563076A

Abstract

An ultraviolet fluid treatment device, comprising a tube body (11), two or more than two ultraviolet lamps (6, 7) of different types and/or power, quartz sleeve tubes (8, 9), an ultraviolet intensity sensor assembly (12), and a control system; the ultraviolet lamps of different types and/or power comprise a medium-pressure multi-spectral ultraviolet lamp (7), a low-pressure ultraviolet lamp (6), or an excimer ultraviolet lamp; the ultraviolet intensity sensor assembly (12) monitors the intensity of the emitted light of the ultraviolet lamps in real time and feeds back same to the control system; on the basis of the feedback signals, the control system automatically regulates the power of the ultraviolet lamps and raises an alarm when the intensity is insufficient, and can also automatically regulate the power when the flow is insufficient or in special usages, or switch off a specific lamp to adaptively adjust the system power, greatly increasing working efficiency.

Description

Ultraviolet fluid treatment equipment

Technical field

The invention belongs to the field of ultraviolet disinfection and organic matter decomposition equipment, and specifically relates to an ultraviolet fluid treatment equipment.

Background technique

Microbial pollution and micro-organism pollution in water are the two core issues that threaten the safety of drinking water. In particular, the use of pesticides, gasoline additives, medicines (such as antibiotics) and personal care chemicals is increasing and threatening water quality and human health. rise. Ultraviolet disinfection has been used for decades as a mature disinfection technology, and the advanced oxidation decomposition and removal of organic matter in water by ultraviolet has gradually developed in the past ten years.

Ultraviolet rays are the general term for 5-400nm electromagnetic waves. Different wavelengths of ultraviolet rays play different roles in water treatment or other fluid treatment fields, and different wavelengths of ultraviolet rays have different penetration capabilities in water. For example, short-wavelength ultraviolet rays (ultraviolet rays below 240nm) have high photon energy that directly decomposes some organic matter and excites water molecules to generate ozone and hydroxyl radicals to oxidize organic matter in water, but its penetration in water is weak; 240-280nm ultraviolet rays are mainly used to kill water Microorganisms have high penetrating ability in water; long-wavelength (above 280nm) ultraviolet rays play an auxiliary role in the decomposition and disinfection of organic matter in the water. The penetrating ability is extremely strong and can strengthen the treatment effects of other wavelengths.

At present, the most commercial applications are low-pressure ultraviolet lamps (185nm, 254nm monochromatic output), the lamp power is generally low (hundreds of watts); medium-pressure ultraviolet lamps (wavelength range is 180-400nm continuous output); The molecular ultraviolet lamp has a single wavelength output of 172nm.

Lamps of different technologies have different advantages and disadvantages. For example, low-pressure ultraviolet lamps have lower power for a single lamp and often require a large number of lamps; especially in the application of photochemical decomposition, because of the ultraviolet radiation dose required for photochemical decomposition It is dozens of times that of disinfection, so the total number of lamps required for the same treatment flow is even larger. This system's light intensity monitoring and operation and maintenance bring greater challenges, and its initial equipment investment and equipment footprint also limit its scope of use.

The power of a single medium-pressure ultraviolet lamp tube is high, up to ten kilowatts or more. Its equipment is compact and easy to maintain. However, the photoelectric conversion efficiency of medium-pressure lamps is much lower than that of low-pressure ultraviolet lamps. high. Moreover, according to the computer fluid software to simulate the flow state of the fluid flowing through the pipeline, it can be clearly seen that the flow rate of water at different positions in the pipeline is different. For example, the fluid in the center of the pipeline is turbulent and the flow rate is high. In the ultraviolet equipment The contact time with ultraviolet light is short, and it belongs to laminar flow near the tube wall. Its flow rate is low. In ultraviolet equipment, the contact time with ultraviolet light is longer. In this way, the energy of the medium-pressure lamp at the edge will be locally excessive, and the tube wall The large absorption loss further reduces the overall efficiency of the system.

Although UV fluid treatment equipment is widely used in water disinfection, syrup and juice disinfection, and decomposition of organics in water; however, one of the aforementioned single lamps is generally selected in the system to facilitate system maintenance or inventory of consumables, but it greatly reduces equipment efficiency and causes other side effects. The risk of products requires additional oxidants or additional equipment to achieve the corresponding effects in advanced oxidation.

Summary of the invention

In order to solve the above problems, and fully consider the functional differences of different lamp wavelengths and the differences in the local flow rate of the fluid, combine and configure the lamps of different types or powers to make the UV intensity distribution in the system closer to the fluid flow rate distribution; make full use of the different wavelengths The functional advantages of the lamp tube enable it to achieve synergy in the system and greatly improve the processing efficiency of the system. For example, a high-power medium-pressure ultraviolet lamp is configured in the area with a high flow rate in the center of the disinfection equipment, which has large power, wide wavelength range, strong penetrating power, low fluid flow rate at the edge, and high light absorption loss on the tube wall of the equipment. Low-power lamps improve the overall photoelectric efficiency of the system and reduce the number of lamps used; combine and configure different-wavelength lamps in advanced oxidation, use short-wavelength ultraviolet lamps with high ozone conversion rate, and combine high-power and high-intensity medium-pressure lamps It forms an effective high-level oxidation process, and improves the efficiency of the ultraviolet equipment to decompose organic matter. The patent of the present invention provides an ultraviolet fluid treatment equipment, which is characterized in that it includes a tube body, a combination configuration of ultraviolet lamps of different types and/or different powers, and a quartz sleeve.

Optional assembly of UV intensity sensor components and automatic cleaning components.

The ultraviolet intensity sensor assembly is installed on the jacket assembly. Real-time monitoring of the luminous intensity of the ultraviolet lamp, and feedback to the control system, the control system will automatically adjust the power of the ultraviolet lamp according to the signal, and give an alarm when the intensity is insufficient.

Automatic cleaning components include cleaning drive motor components and cleaning components; drive end plate components and tail components are equipped with quartz sleeves, quartz sleeve sealing components, wiring harness components and cleaning drive motor components; wiring harness components provide power for cleaning drive motor components; drive motor The assembly is used to drive the cleaning assembly to make a reciprocating linear movement along the outer wall of the quartz sleeve. The cleaning components include low pressure cleaning ring, low pressure cleaning ring housing, medium pressure cleaning ring, medium pressure cleaning ring housing, cleaning disc, drive nut and drive screw, cleaning sheet; the low pressure cleaning ring, low pressure cleaning ring housing, medium pressure The cleaning ring, the medium-pressure cleaning ring shell is installed on the cleaning plate; all the cleaning rings on the cleaning assembly are respectively covered with the corresponding low-pressure quartz sleeve and medium-pressure quartz sleeve, the cleaning sheet is closely aligned with the sensor mounting seat, and the drive The nut and the driving screw are respectively aligned and installed on the driving end plate and the tail end plate. According to the set cleaning interval and time, the drive motor rotates clockwise and counterclockwise to drive the drive nut and drive screw to rotate forward and backward, and then pass to the automatic cleaning assembly to perform reciprocating linear motion along the quartz sleeve to clean the quartz sleeve. The outer wall of the tube.

Preferably, the ultraviolet lamps of different types and/or powers include: medium-pressure multi-spectrum ultraviolet lamps, low-pressure ultraviolet lamps, low-pressure amalgam ultraviolet lamps, and excimer ultraviolet lamps.

Preferably, the combined configuration of the ultraviolet lamp tubes means that each device is equipped with at least two or more different types of ultraviolet lamp tubes.

Preferably, the combined configuration of the ultraviolet lamps means that each device is equipped with at least two or more ultraviolet lamps with different rated power.

Preferably, the combined configuration of the ultraviolet lamp tubes means that each device has at least two ultraviolet lamp tubes with the same rated power to operate at different powers through power adjustment.

In order to optimize the organic decomposition efficiency and microbial sterilization efficiency of ultraviolet equipment, the equipment optimizes the combination of ultraviolet lamp types and/or ultraviolet lamp power according to different purposes of use (the number, power, type and arrangement of ultraviolet lamps can be different). Realize different treatment purposes and improve its treatment efficiency; according to the position of the lamp in the cavity, the lamp can be selectively turned off or the same lamp can be operated at different powers; medium-voltage multi-spectrum ultraviolet lamps, low-pressure ultraviolet lamps or Excimer ultraviolet lamp.

Preferably, the tube body includes a jacket assembly; the jacket assembly has a water inlet and a water outlet, a drive end plate assembly and a tail end plate assembly, and different types of or different power ultraviolet lamps are arranged inside, and the water to be treated Or the fluid enters from the water inlet and flows out from the water outlet after being fully irradiated by ultraviolet rays.

Among them, the left and right ends of the jacket assembly are welded with a flange to install the drive end plate assembly and the tail end plate assembly, and one or more medium-voltage multi-spectrum ultraviolet lamps are arranged in the center, surrounding the medium-voltage multi-spectrum. The ultraviolet lamps are different numbers of low-pressure ultraviolet lamps or excimer ultraviolet lamps.

Preferably, the operating power of the ultraviolet lamp tube automatically adjusts the operating power of each lamp tube or selectively shuts off the running lamp tube according to the operating flow rate and the real-time situation of ultraviolet radiation, so as to save energy consumption.

Preferably, the quartz sleeve is a split quartz sleeve or an integrated quartz sleeve lamp, including a quartz sleeve mounting assembly, a medium-pressure quartz sleeve, and a low-pressure quartz sleeve, which are used to protect the ultraviolet lamp from Water isolation.

Split quartz sleeve means that the quartz sleeve and the ultraviolet lamp are two parts; the integrated quartz sleeve lamp means that the quartz sleeve and the ultraviolet lamp are one part, and the quartz sleeve is used to protect the ultraviolet lamp and pass through Ultraviolet light. The quartz sleeve is inserted from the drive end plate assembly and placed in the jacket assembly, the right end of the quartz sleeve passes through the tail end plate assembly; the quartz sleeve sealing assembly is used to fix and seal the quartz sleeve.

All equipment is equipped with a temperature sensor as standard, which will monitor the operating temperature of the equipment in real time and feed it back to the control system. The control system will give an alarm when the temperature threshold is reached, and turn off the lamp when the temperature threshold is exceeded.

The ultraviolet fluid treatment equipment manufactured by the above method can be used for water treatment disinfection, syrup juice disinfection, organic matter decomposition in ultrapure water, advanced oxidation in the treatment of high-concentration organic wastewater, and organic matter decomposition in the process of tap water treatment.

The ultraviolet fluid treatment equipment provided by the present invention can achieve the following beneficial effects through the combined configuration of ultraviolet lamp tubes of different types and/or different powers:

1. Provide a new type of ultraviolet disinfection equipment with a mixture of medium and low pressures, which can meet the disinfection and organic decomposition of certain specific working conditions, and can automatically adjust the power, and even turn off the UV disinfection system with adaptive adjustment of certain lamps.

2. Configure a low-power ultraviolet lamp in the tube body with a lower flow rate, and a high-power lamp in the center of the tube with a higher flow rate, so that the dose is more uniform, which not only ensures the disinfection effect, but also prevents local exposure dose Too high generates new disinfection by-products, and energy consumption is more economical.

3. In the decomposition of organic matter, the advantages of different lamps can be fully utilized, such as the high ozone concentration produced by low-pressure lamps or excimer lamps, and the high-intensity and multi-band advantages of medium-pressure multi-band ultraviolet lamps, forming ultraviolet rays in the tube. /The advanced ozone oxidation process greatly improves the removal efficiency of organic matter in the water.

Description of the drawings

Figure 1 is a three-dimensional exploded view of an ultraviolet fluid treatment equipment of the present invention;

Figure 2 is a front view of an ultraviolet fluid treatment equipment of the present invention;

Fig. 3 is a cross-sectional view A-A of the front view of the ultraviolet fluid treatment equipment of Fig. 2.

Electrical shield assembly (1), wiring harness assembly (2), cleaning drive motor assembly (3), quartz sleeve sealing assembly (4), drive end plate assembly (5), low-voltage ultraviolet lamp (6), medium-pressure multi Spectral ultraviolet lamp tube (7), medium pressure quartz sleeve (8), low pressure quartz sleeve (9), jacket assembly (11), ultraviolet intensity sensor assembly (12), tail end plate assembly (14), drainage Components (15), cleaning components (18), etc. The cleaning component (18) consists of a low-pressure cleaning ring (16), a low-pressure cleaning ring shell (17), a drive screw (19), a drive nut (20), and a medium pressure cleaning ring. A cleaning ring (21), a medium-pressure cleaning ring housing (22), a sensor mounting seat cleaning sheet (23), a cleaning disc (24) and the like are composed.

detailed description

The following describes the technical solutions in the embodiments of the present invention clearly and completely with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Example

The equipment consists of an electrical shield assembly (1), a wiring harness assembly (2), a cleaning drive motor assembly (3), a quartz sleeve sealing assembly (4), a drive end plate assembly (5), a low-voltage ultraviolet lamp tube (6), a middle Pressure multi-spectrum ultraviolet lamp tube (7), medium pressure quartz sleeve (8), low pressure quartz sleeve (9), jacket assembly (11), ultraviolet intensity sensor assembly (12), tail end plate assembly (14) , Drain assembly (15), cleaning assembly (18), etc. The cleaning assembly (18) consists of a low-pressure cleaning ring (16), a low-pressure cleaning ring housing (17), a drive screw (19), a drive nut (20), A medium pressure cleaning ring (21), a medium pressure cleaning ring housing (22), a sensor mounting seat cleaning sheet (23), and a cleaning disc (24) are composed.

As shown in Figure 1, the drive end plate assembly (5) is equipped with an electrical shield assembly (1), a wiring harness assembly (2), a cleaning drive motor assembly (3), a quartz sleeve sealing assembly (4), and a medium pressure quartz sleeve Tube (8) and low-pressure quartz sleeve (9). The electrical shield assembly is used to protect the internal cleaning drive motor assembly and the wiring harness assembly; the cleaning drive motor assembly is used to drive the cleaning assembly (18); the quartz sleeve is inserted from the drive end plate assembly and placed in the jacket assembly (11) , The right end of the quartz sleeve passes through the tail end plate assembly (14); the quartz sleeve sealing assembly is used to fix and seal the quartz sleeve; the wiring harness assembly connects the lamp tube, the drive motor assembly and the ultraviolet intensity sensor assembly.

A flange is welded on the left and right ends of the jacket assembly to install the drive end plate assembly and the tail end plate. A medium-voltage multi-spectrum ultraviolet lamp (7) is placed in the center, surrounding the medium-voltage multi-spectrum ultraviolet lamp. There are different numbers of low-pressure ultraviolet lamps (6). All the lamps are equipped with quartz sleeves to isolate them from water. The upper left and right ends of the jacket are respectively flange-type or clamp-type water inlet connections (10 ) And the water outlet connection port (13), the water or fluid to be treated enters from the water inlet connection port and is fully irradiated with ultraviolet rays for sterilization and then flows out from the water outlet connection port. There is an ultraviolet intensity sensor assembly (12) in the middle of the right side of the jacket assembly, which is used for real-time monitoring of ultraviolet intensity and feedback to the control system. There is a drain assembly (15) in the middle of the bottom of the jacket assembly, which is used to drain the internal liquid during equipment maintenance.

The cleaning assembly (18) consists of a low pressure cleaning ring (16), a low pressure cleaning ring shell (17), a medium pressure cleaning ring (21), a medium pressure cleaning ring shell (22), a cleaning disc (24), a drive nut (20) and Drive screw (19), sensor mounting seat cleaning sheet (23) and other components. All the cleaning rings on the cleaning assembly are respectively covered with the corresponding low-pressure quartz sleeve and medium-pressure quartz sleeve. The cleaning sheet is closely aligned with the sensor mounting seat, and the drive nut and drive screw are aligned and installed on the drive end plate and the tail end. On the board. According to the set cleaning interval and time, the cleaning drive motor rotates clockwise and counterclockwise to drive the drive nut and the drive screw to rotate forward and backward, and then pass to the cleaning assembly to make a reciprocating linear movement along the quartz sleeve to clean the quartz sleeve. The outer wall of the tube.

The combination configuration of ultraviolet lamps is preferably the following configurations: 1. Combination configuration of two types of lamps 2. Combination configuration of three types of lamps 3. Combination configuration of four types of lamps 4. The power of the same type of lamps is different after adjustment Combination configuration for power operation. The specific combination configuration is listed in Table 1, Table 2, Table 3, and Table 4.

Table 1 Combination configuration of the two lamps

序号Serial number	灯管1Light tube 1	灯管2 Lamp 2
11	中压紫外线灯管Medium pressure ultraviolet lamp	低压紫外线灯管Low-pressure ultraviolet lamp
22	中压紫外线灯管Medium pressure ultraviolet lamp	低压汞齐紫外线灯管Low pressure amalgam ultraviolet lamp
33	中压紫外线灯管Medium pressure ultraviolet lamp	准分子紫外线灯管Excimer UV tube
44	低压紫外线灯管Low-pressure ultraviolet lamp	低压汞齐紫外线灯管Low pressure amalgam ultraviolet lamp
55	低压紫外线灯管Low-pressure ultraviolet lamp	准分子紫外线灯管 Excimer UV tube
66	低压汞齐紫外线灯管Low pressure amalgam ultraviolet lamp	准分子紫外线灯管Excimer UV tube

Table 2 Combination configuration of three kinds of lamps

序号Serial number	灯管1Light tube 1	灯管2 Lamp 2	灯管3 Lamp 3
11	中压紫外线灯管Medium pressure ultraviolet lamp	低压紫外线灯管Low-pressure ultraviolet lamp	低压汞齐紫外线灯管Low pressure amalgam ultraviolet lamp
22	中压紫外线灯管Medium pressure ultraviolet lamp	低压紫外线灯管Low-pressure ultraviolet lamp	准分子紫外线灯管 Excimer UV tube
33	中压紫外线灯管Medium pressure ultraviolet lamp	低压汞齐紫外线灯管Low pressure amalgam ultraviolet lamp	准分子紫外线灯管Excimer UV tube
44	低压紫外线灯管Low-pressure ultraviolet lamp	低压汞齐紫外线灯管Low pressure amalgam ultraviolet lamp	准分子紫外线灯管Excimer UV tube

Table 3 Combination configuration of four kinds of lamps

序号Serial number	灯管1Light tube 1	灯管2 Lamp 2	灯管3 Lamp 3	灯管4Lamp 4
11	中压紫外线灯管Medium pressure ultraviolet lamp	低压紫外线灯管Low-pressure ultraviolet lamp	低压汞齐紫外线灯管Low pressure amalgam ultraviolet lamp	准分子紫外线灯管Excimer UV tube

Table 4 Combination configuration of different power operation after the same kind of lamp power adjustment

序号Serial number	灯管1Light tube 1	灯管2 Lamp 2
11	中压紫外线灯管Medium pressure ultraviolet lamp	中压紫外线灯管Medium pressure ultraviolet lamp
22	低压紫外线灯管Low-pressure ultraviolet lamp	低压紫外线灯管Low-pressure ultraviolet lamp
33	低压汞齐紫外线灯管Low pressure amalgam ultraviolet lamp	低压汞齐紫外线灯管Low pressure amalgam ultraviolet lamp
44	准分子紫外线灯管Excimer UV tube	准分子紫外线灯管Excimer UV tube

The specific embodiments described above further describe the purpose, technical solutions and beneficial effects of the present invention in further detail. It should be understood that the above descriptions are only specific embodiments of the present invention and are not intended to limit the protection of the present invention. Scope, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

An ultraviolet fluid processing equipment, which is characterized in that it comprises a tube body, a combination configuration of ultraviolet lamp tubes of different types and/or different powers, and a quartz sleeve.
The ultraviolet fluid treatment equipment according to claim 1, wherein the ultraviolet lamps of different types and/or different powers include: medium-pressure multi-spectrum ultraviolet lamps, low-pressure ultraviolet lamps, and low-pressure amalgams. Ultraviolet lamps, excimer ultraviolet lamps.
The ultraviolet fluid treatment equipment according to claim 1, wherein the combination configuration of the ultraviolet lamp tubes means that each equipment is equipped with at least two or more different types of ultraviolet lamp tubes.
The ultraviolet fluid treatment equipment according to claim 1, characterized in that: the combined configuration of the ultraviolet lamps means that each equipment is equipped with at least two or more types of ultraviolet lamps with different rated powers.
The ultraviolet fluid treatment equipment according to claim 1, characterized in that: the combined configuration of the ultraviolet lamps means that each equipment has at least two ultraviolet lamps with the same rated power through power adjustment to make them operate at different powers. Run down.
The ultraviolet fluid treatment equipment according to claim 1, wherein the pipe body includes a jacket assembly; the jacket assembly has a water inlet and a water outlet, a driving end plate assembly and a tail end plate assembly, The inside is equipped with different types or different power ultraviolet lamps, the water or fluid to be treated enters from the water inlet and flows out from the water outlet after being fully irradiated by ultraviolet rays.
The ultraviolet fluid treatment equipment according to claim 1, characterized in that: the operating power of the ultraviolet lamp tube automatically adjusts the operating power of each tube according to the operating flow rate and the real-time situation of ultraviolet radiation or selectively shuts off the operating power of each tube Lamps to save energy.
The ultraviolet fluid treatment equipment according to claim 1, wherein the quartz sleeve is a split quartz sleeve or an integrated quartz sleeve lamp tube, including a quartz sleeve mounting assembly, a medium-pressure quartz sleeve , Low-pressure quartz sleeve, used to protect the ultraviolet lamp tube from water.