Ultraviolet lamp device

Abstract

The utility model relates to the technical field of ultraviolet lamps, and discloses an ultraviolet lamp device, which comprises a shell, an ultraviolet lamp and a base, a light-emitting window is arranged at the bottom of the shell, the ultraviolet lamp is mounted in the light-emitting window, the base is arranged at the bottom of the shell, a cooling plate positioned below the light-emitting window is arranged in the base, and the ultraviolet lamp is mounted in the cooling plate. A gap exists between the top of the cooling plate and the bottom of the shell to form a conveying channel allowing an irradiated object to pass through, a first cooling channel is formed in the cooling plate, one end of the first cooling channel is connected with a first input pipe extending out of the base, and the other end of the first cooling channel is connected with a first output pipe extending out of the base. The front side and the rear side of the base are respectively provided with a through groove through which an irradiated object can pass, and the through grooves are communicated with the conveying channel. According to the utility model, the cooling plate is internally provided with the first cooling channel into which the refrigerant can be introduced, so that an irradiated object arranged on the cooling plate can be cooled, and the temperature of the irradiated object is prevented from being too high.

Description

Technical Field

[0001] The utility model relates to the technical field of ultraviolet lamps, in particular to an ultraviolet lamp device. Background Art

[0002] Ultraviolet lamps are electrical devices that generate ultraviolet light. They are widely used in a variety of fields for disinfection, fluorescence detection, and plant growth promotion. However, in certain applications, such as irradiating PET film for photochemical surface modification, coating curing, and cleaning, the distance between the lamp and the object being illuminated is small, resulting in insufficient heat dissipation. Prolonged exposure to the object can lead to excessively high temperatures, thus affecting its properties. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an ultraviolet lamp device which can cool an illuminated object.

[0004] In order to solve the above technical problems, the present invention provides an ultraviolet lamp device, including a shell, an ultraviolet lamp and a base, the bottom of the shell is provided with a light exit window, the ultraviolet lamp is installed in the light exit window, the base is provided at the bottom of the shell, a cooling plate is provided in the base below the light exit window, a gap is provided between the top of the cooling plate and the bottom of the shell to form a conveying channel for the irradiated object to pass through, a first cooling channel is provided inside the cooling plate, one end of the first cooling channel is connected to a first input pipe extending out of the base, and the other end of the first cooling channel is connected to a first output pipe extending out of the base, the front and rear sides of the base are respectively provided with through grooves for the irradiated object to pass through, and the through grooves are connected to the conveying channel.

[0005] As a preferred embodiment of the present invention, a plurality of first cooling channels are provided and arranged side by side. A first input block and a first output block are provided at the bottom of the cooling plate. A first input channel is provided inside the first input block. One end of the first input channel is connected to the first input pipe, and the other end of the first input channel is a closed end. A plurality of first input holes are provided on the top of the first input block, respectively communicating with the first input channel and one end of the first cooling channel. The plurality of first input holes correspond one-to-one to the plurality of first cooling channels. A first output channel is provided on the first output block. One end of the first output channel is connected to the first output pipe, and the other end of the first output channel is a closed end. A plurality of first output holes are provided on the top of the first output block, respectively communicating with the first output channel and the other end of the first cooling channel. The plurality of first output holes correspond one-to-one to the plurality of first cooling channels.

[0006] As a preferred embodiment of the present invention, the ultraviolet lamp includes a lamp tube, which includes an outer tube and an inner tube. The inner tube is coaxially arranged inside the outer tube. A sealed cavity is formed between the outer tube and the inner tube. The sealed cavity is filled with a dischargeable gas. A second cooling channel is provided on the inner side of the inner tube. One end of the second cooling channel is connected to a second input tube extending outside the shell, and the other end of the second cooling channel is connected to a second output tube extending outside the shell.

[0007] As a preferred embodiment of the present invention, a second input block and a second output block fixedly connected to the shell are provided above the ultraviolet lamp, and multiple lamp tubes are provided and arranged side by side, one end of the lamp tube is installed at the bottom of the second input block, and the other end of the lamp tube is installed at the bottom of the second output block, the second input block is provided with a second input channel, one end of the second input channel is connected to the second input pipe, and the other end of the second input channel is a closed end, the bottom of the second input block is provided with a plurality of second input holes respectively connected to the second input channel and one end of the second cooling channel, and the plurality of second input holes correspond one-to-one to the plurality of second cooling channels, the second output block is provided with a second output channel, one end of the second output channel is connected to the second output pipe, and the other end of the second output channel is a closed end, the bottom of the second output block is provided with a plurality of second output holes respectively connected to the second output channel and the other end of the second cooling channel, and the plurality of second output holes correspond one-to-one to the plurality of second cooling channels.

[0008] As a preferred embodiment of the present invention, the ultraviolet lamp also includes a first electrode and a second electrode, the first electrode is sleeved on the outside of the outer tube, the second electrode is arranged in the inner tube and cooperates with the inner tube, a cooling tube is passed through the second electrode, and the interior of the cooling tube forms the second cooling channel.

[0009] As a preferred solution of the present invention, the rear side of the shell is connected to the rear side of the base through a hinge, and the left and right sides of the shell are respectively provided with retractable support rods, one end of the support rod is hinged to the side of the shell, and the other end of the support rod is hinged to the side of the base.

[0010] As a preferred solution of the present invention, a reflector is installed in the shell, the bottom of the reflector is open and corresponds to the position of the light exit window, and the reflector covers the ultraviolet lamp.

[0011] As a preferred solution of the present invention, the shell is provided with a vent for receiving nitrogen, and the vent is communicated with the interior of the shell.

[0012] The embodiment of the present utility model provides an ultraviolet lamp device, which has the following beneficial effects compared with the prior art: when in use, first, one end of the irradiated object is passed through the through groove on the rear side of the base, the conveying channel and the through groove on the front side of the base in sequence, and the irradiated object is placed on the top surface of the cooling plate, and the first input pipe is connected to the refrigerant, and the refrigerant is conveyed to the first cooling channel and then discharged from the first output pipe; then the ultraviolet lamp is turned on, and the ultraviolet lamp irradiates the irradiated object located below the light outlet, and then the irradiated object is pulled so that the irradiated object is conveyed from the back to the front at a set speed, thereby realizing continuous operation; during the operation, the refrigerant is continuously introduced into the first input pipe, and when the refrigerant is conveyed to the first cooling channel, heat is exchanged with the irradiated object located on the cooling plate, thereby cooling the irradiated object, and effectively preventing the irradiated object from being overheated due to irradiation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front structural diagram of the utility model;

[0014] Figure 2 It is a rear structural diagram of the utility model;

[0015] Figure 3 It is a front side broken view of the present utility model;

[0016] Figure 4 It is a right side sectional view of the utility model;

[0017] Figure 5 This is a bottom structural diagram of the housing of the utility model;

[0018] Figure 6 It is a structural diagram of the base of the utility model;

[0019] Figure 7 This is a schematic diagram of the connection structure between the lamp tube, the second input block and the second output block of the utility model;

[0020] Figure 8 It is a cross-sectional view of the lamp tube of the present utility model;

[0021] In the figure, 1. shell; 11. light exit window; 12. conveying channel; 13. hinge; 14. support rod; 15. reflector; 2. UV lamp; 21. lamp tube; 211. outer tube; 212. inner tube; 213. second cooling channel; 22. first electrode; 23. second electrode; 24. cooling tube; 3. base; 31. cooling plate; 311. first cooling channel; 32. through groove; 4. first input tube; 41. first input block; 411. first input channel; 412. first input hole; 5. first output tube; 51. first output block; 511. first output channel; 512. first output hole; 6. second input tube; 61. second input block; 611. second input channel; 612. second input hole; 7. second output tube; 71. second output block; 711. second output channel; 712. second output hole. DETAILED DESCRIPTION

[0022] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used in the present invention to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second" and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] like Figure 1-8 As shown, an ultraviolet lamp device according to a preferred embodiment of the present invention includes a shell 1, an ultraviolet lamp 2 and a base 3. A light exit window 11 is provided at the bottom of the shell 1, and the ultraviolet lamp 2 is installed in the light exit window 11. The base 3 is provided at the bottom of the shell 1. Generally, in order to reduce the leakage of ultraviolet light during operation, the top of the base 3 covers the light exit window 11. A cooling plate 31 is provided in the base 3 below the light exit window 11. A gap is formed between the top of the cooling plate 31 and the bottom of the shell 1 to form a conveying channel 12 for the irradiated object to pass through. A first cooling channel 311 is provided inside the cooling plate 31. One end of the first cooling channel 311 is connected to a first input pipe 4 extending out of the base 3, and the other end of the first cooling channel 311 is connected to a first output pipe 5 extending out of the base 3. The front and rear sides of the base 3 are respectively provided with through grooves 32 for the irradiated object to pass through, and the through grooves 32 are connected to the conveying channel 12.

[0025] The working principle of this embodiment is as follows: when in use, first, one end of the object to be illuminated (such as a PET film) is passed through the through slot 32 on the rear side of the base 3, the conveying channel 12, and the through slot 32 on the front side of the base 3 in sequence, and the object to be illuminated is placed on the top surface of the cooling plate 31. The first input pipe 4 is connected to the refrigerant (generally, the refrigerant is water, and it can also be an inert gas, which may include one or more of nitrogen, neon, etc.). The refrigerant is conveyed to the first cooling channel 311 and then discharged from the first output pipe 5. Then, the ultraviolet lamp is turned on. 2. The ultraviolet lamp 2 irradiates the object located below the light outlet, and then pulls the object so that the object is transported from back to front at a set speed (for example, when irradiating a PET film, the transport speed of the PET film is 0.25 mm / s), thereby realizing continuous operation. During the operation, a refrigerant is continuously introduced into the first input pipe 4. When the refrigerant is transported to the first cooling channel 311, it exchanges heat with the object located on the cooling plate 31, thereby cooling the object and effectively preventing the object from being overheated due to irradiation.

[0026] Exemplarily, multiple first cooling channels 311 are provided and arranged side by side. A first input block 41 and a first output block 51 are provided at the bottom of the cooling plate 31. A first input channel 411 is provided inside the first input block 41. One end of the first input channel 411 is connected to the first input pipe 4, and the other end of the first input channel 411 is a closed end. A plurality of first input holes 412 are provided on the top of the first input block 41, which are respectively connected to the first input channel 411 and one end of the first cooling channel 311. The plurality of first input holes 412 correspond one-to-one to the plurality of first cooling channels 311. A first output block 51 is provided with a first output channel 511. One end of the first output channel 511 is connected to the first output pipe 5, and the other end of the first output channel 511 is a closed end. A plurality of first output holes 512 are provided on the top of the first output block 51, which are respectively connected to the first output channel 511 and the other end of the first cooling channel 311. The plurality of first output holes 512 correspond one-to-one to the plurality of first cooling channels 311. Correspondingly, the refrigerant is transported to the first input channel 411 through the first input pipe 4, and then diverted to one end of the multiple first cooling channels 311 through multiple first input holes 412, and then transported to the first output channel 511 from the other end of the first cooling channel 311 through the first output hole 512, and finally discharged through the first output pipe 5, thereby realizing the centralized transportation and recovery of the refrigerant; in this embodiment, the first cooling channel 311 is arranged along the length direction of the cooling plate 31 and passes through both sides of the cooling plate 31. In order to prevent the refrigerant from leaking from the first cooling channel 311, the two ports of the first cooling channel 311 are blocked, for example, a plug is provided at the port of the first cooling channel 311 (not shown in the figure), and multiple first cooling channels 311 are arranged at intervals along the width direction of the cooling plate 31, and the first input block 41 and the first output block 51 are respectively arranged along the width direction of the cooling plate 31, the first input block 41 is arranged on the left side of the bottom of the cooling plate 31, and the first output block 51 is arranged on the right side of the bottom of the cooling plate 31.

[0027] Exemplarily, the ultraviolet lamp 2 includes a lamp tube 21, which includes an outer tube 211 and an inner tube 212. The inner tube 212 is coaxially arranged inside the outer tube 211. A sealed cavity is formed between the outer tube 211 and the inner tube 212. The sealed cavity is filled with a dischargeable gas. A second cooling channel 213 is provided on the inner side of the inner tube 212. One end of the second cooling channel 213 is connected to a second input pipe 6 extending outside the shell 1, and the other end of the second cooling channel 213 is connected to a second output pipe 7 extending outside the shell 1. During operation, the refrigerant is transported to the second cooling channel 213 through the second input pipe 6, and the refrigerant in the second cooling channel 213 performs heat exchange with the lamp tube 21 to achieve cooling of the lamp tube 21.

[0028] It can be understood that the ultraviolet lamp 2 also includes a first electrode 22 and a second electrode 23. When working, the first electrode 22 and the second electrode 23 are respectively connected to the power supply, and the dischargeable gas between the first electrode 22 and the second electrode 23 is bombarded and discharged to emit light; wherein, there are multiple schemes for the arrangement positions of the first electrode 22 and the second electrode 23, as long as they can meet the normal operation of the ultraviolet lamp 2, for example, the first electrode 22 is sleeved on one end of the outer tube 211, and the second electrode 23 is sleeved on the other end of the outer tube 211, and the distance between the first electrode 22 and the second electrode 23 is greater than the safety distance. At this time, a second cooling channel 213 is formed inside the inner tube 212; for another example, the first electrode 22 is sleeved on the outside of the outer tube 211, and the second electrode 23 is sleeved on the inside The outside of the tube 212 (that is, the second electrode 23 is located in the sealed cavity. To ensure that the second electrode 23 can be connected to the power supply, the second electrode 23 is connected to a conductive lead that is sealed and extends out of the sealed cavity), and a second cooling channel 213 is formed inside the inner tube 212. Exemplarily, in this embodiment, the first electrode 22 is sleeved on the outside of the outer tube 211, the second electrode 23 is arranged in the inner tube 212 and cooperates with the inner tube 212, a cooling tube 24 is passed through the second electrode 23, and a second cooling channel 213 is formed inside the cooling tube 24. The refrigerant is transported to the cooling tube 24 through the second input channel 611 to separate the refrigerant and the second electrode 23. It is suitable for situations where the refrigerant cannot directly contact the second electrode 23 located in the inner tube 212.

[0029] Exemplarily, a second input block 61 and a second output block 71 fixedly connected to the shell 1 are provided above the ultraviolet lamp 2, a plurality of lamp tubes 21 are provided and arranged side by side, each lamp tube 21 is provided with a second cooling channel 213, one end of the lamp tube 21 is installed at the bottom of the second input block 61, and the other end of the lamp tube 21 is installed at the bottom of the second output block 71, the second input block 61 is provided with a second input channel 611, one end of the second input channel 611 is connected to the second input pipe 6, and the other end of the second input channel 611 is a closed end, the bottom of the second input block 61 is provided with a plurality of second input holes 612 respectively connected to the second input channel 611 and one end of the second cooling channel 213, the plurality of second input holes 612 correspond one-to-one to the plurality of second cooling channels 213, the second output block 71 is provided with a second output channel 711, one end of the second output channel 711 is connected to the second output pipe 7, and the other end of the second output channel 711 is a closed end, The bottom of the second output block 71 is provided with a plurality of second output holes 712 respectively connected to the second output channel 711 and the other end of the second cooling channel 213. The plurality of second output holes 712 correspond one-to-one to the plurality of second cooling channels 213, which facilitates the centralized transportation and recovery of the refrigerant. In this embodiment, the lamp tube 21 is arranged along the length direction of the cooling plate 31, and the plurality of lamp tubes 21 are arranged at intervals along the width direction of the cooling plate 31. One end of the lamp tube 21 is sleeved with a first fixing sleeve, the top of the first fixing sleeve is fixedly connected to the bottom of the second input block 61, the first fixing sleeve is provided with a first connecting channel respectively connected to the second input hole 612 and one end of the second cooling channel 213, the other end of the lamp tube 21 is sleeved with a second fixing sleeve, the top of the second fixing sleeve is fixedly connected to the bottom of the second output block 71, and the second fixing sleeve is provided with a second connecting channel respectively connected to the second output hole 712 and the other end of the second cooling channel 213 to facilitate the installation of the lamp tube 21.

[0030] Exemplarily, the rear side of the shell 1 is connected to the rear side of the base 3 via a hinge 13 (such as a hinge), and the left and right sides of the shell 1 are respectively provided with retractable support rods 14, one end of the support rod 14 is hinged to the side of the shell 1, and the other end of the support rod 14 is hinged to the side of the base 3. When the shell 1 is rotated upward, the support rod 14 will extend, and at this time the bottom of the front side of the shell 1 gradually separates from the base 3 to facilitate inspection of the ultraviolet lamp 2 and the cooling plate 31.

[0031] Exemplarily, a reflector 15 is installed in the shell 1. The bottom of the reflector 15 is open and corresponds to the position of the light exit window 11. The reflector 15 covers the ultraviolet lamp 2 so that the light emitted by the ultraviolet lamp 2 is basically emitted from the light exit window 11, effectively increasing the utilization rate of the light of the ultraviolet lamp 2.

[0032] Exemplarily, the shell 1 is provided with a vent (not shown in the figure) for receiving nitrogen, and the vent is connected to the interior of the shell 1. When the device is in use, nitrogen is continuously supplied to the vent to discharge the oxygen in the shell 1, thereby preventing the oxygen near the ultraviolet lamp 2 from affecting the working efficiency of the ultraviolet lamp 2.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. An ultraviolet lamp device, characterized in that: The invention comprises a shell, an ultraviolet lamp and a base, wherein a light exit window is provided at the bottom of the shell, the ultraviolet lamp is installed in the light exit window, the base is provided at the bottom of the shell, a cooling plate is provided in the base below the light exit window, a gap is provided between the top of the cooling plate and the bottom of the shell to form a conveying channel for the irradiated object to pass through, a first cooling channel is provided inside the cooling plate, one end of the first cooling channel is connected to a first input pipe extending out of the base, the other end of the first cooling channel is connected to a first output pipe extending out of the base, the front and rear sides of the base are respectively provided with through grooves for the irradiated object to pass through, and the through grooves are connected to the conveying channel.

2. The ultraviolet lamp device according to claim 1, characterized in that: A plurality of first cooling channels are provided and arranged side by side. A first input block and a first output block are provided at the bottom of the cooling plate. A first input channel is provided inside the first input block. One end of the first input channel is connected to the first input pipe, and the other end of the first input channel is a closed end. A plurality of first input holes are provided on the top of the first input block, respectively communicating with the first input channel and one end of the first cooling channel. The plurality of first input holes correspond one-to-one to the plurality of first cooling channels. A first output channel is provided on the first output block. One end of the first output channel is connected to the first output pipe, and the other end of the first output channel is a closed end. A plurality of first output holes are provided on the top of the first output block, respectively communicating with the first output channel and the other end of the first cooling channel. The plurality of first output holes correspond one-to-one to the plurality of first cooling channels.

3. The ultraviolet lamp device according to claim 1, characterized in that: The ultraviolet lamp includes a lamp tube, which includes an outer tube and an inner tube. The inner tube is coaxially arranged inside the outer tube. A sealed cavity is formed between the outer tube and the inner tube. The sealed cavity is filled with a dischargeable gas. A second cooling channel is provided on the inner side of the inner tube. One end of the second cooling channel is connected to a second input tube extending outside the shell, and the other end of the second cooling channel is connected to a second output tube extending outside the shell.

4. The ultraviolet lamp device according to claim 3, characterized in that: A second input block and a second output block fixedly connected to the shell are provided above the ultraviolet lamp. Multiple lamp tubes are provided and arranged side by side. One end of the lamp tube is installed at the bottom of the second input block, and the other end of the lamp tube is installed at the bottom of the second output block. The second input block is provided with a second input channel, one end of the second input channel is connected to the second input pipe, and the other end of the second input channel is a closed end. The bottom of the second input block is provided with a plurality of second input holes respectively connected to the second input channel and one end of the second cooling channel, and the plurality of second input holes correspond one-to-one to the plurality of second cooling channels. The second output block is provided with a second output channel, one end of the second output channel is connected to the second output pipe, and the other end of the second output channel is a closed end. The bottom of the second output block is provided with a plurality of second output holes respectively connected to the second output channel and the other end of the second cooling channel, and the plurality of second output holes correspond one-to-one to the plurality of second cooling channels.

5. The ultraviolet lamp device according to claim 3, characterized in that: The ultraviolet lamp also includes a first electrode and a second electrode. The first electrode is sleeved on the outside of the outer tube, and the second electrode is arranged in the inner tube and cooperates with the inner tube. A cooling tube is passed through the second electrode, and the interior of the cooling tube forms the second cooling channel.

6. The ultraviolet lamp device according to claim 1, characterized in that: The rear side of the shell is connected to the rear side of the base through a hinge. The left and right sides of the shell are respectively provided with retractable support rods, one end of the support rod is hinged to the side of the shell, and the other end of the support rod is hinged to the side of the base.

7. The ultraviolet lamp device according to claim 1, characterized in that: A reflector is installed in the shell, the bottom of the reflector is an opening corresponding to the position of the light exit window, and the reflector covers the ultraviolet lamp.

8. The ultraviolet lamp device according to claim 1, characterized in that: The shell is provided with a vent for receiving nitrogen, and the vent is communicated with the interior of the shell.

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