Plug-in explosion-proof UV lamp and photocatalytic system for photocatalysis

Abstract

The present invention relates to ultraviolet lamp explosion-proof technology, specifically a plug-in explosion-proof ultraviolet lamp and photocatalytic system for photocatalysis, including a heat dissipation frame; the heat dissipation frame is provided with a cooling medium input channel and a cooling medium output channel along its length, and the input direction of the cooling medium input channel is opposite to the output direction of the cooling medium output channel; a Y-shaped heat dissipation channel connecting the cooling medium input channel and the cooling medium output channel is formed near the light bar on the heat dissipation frame, and the cooling medium in the cooling medium input channel vertically enters the Y-shaped heat dissipation channel and is divided into two paths that flow through both sides of the light bar and then vertically merge into the cooling medium output channel. The cooling medium vertically enters the Y-shaped heat dissipation channel and is combined with a branch design to allow the cooling medium to flow along the width of the light bar, thereby reducing the flow time of the cooling medium near the heat source position and eliminating the problem of subsequent poor heat exchange effect caused by continuous heat exchange during the flow of the cooling medium flowing along the length of the light bar.

Description

Technical Field

[0001] The invention relates to an explosion-proof technology for ultraviolet lamps, in particular to a plug-in explosion-proof ultraviolet lamp and a photocatalytic system for photocatalysis. Background Art

[0002] Ultraviolet lamps are devices that emit ultraviolet light and are commonly used for catalytic reactions, sterilization, and disinfection. When used for catalytic reactions, UV lamps are often placed in flammable and explosive environments such as reactors, placing higher explosion-proof requirements on UV lamps.

[0003] In the prior art, CN217302544U provides a double-layer explosion-proof UV lamp. When the external temperature is too high, the explosive beads inside the explosion-proof box will burst, causing the right slider to slide to the left, and the conductive sheet below the slider will disengage from the electric contact head, thus cutting off the power supply and preventing the UV lamp from bursting. However, this explosion-proof structure can only prevent overheating by disconnecting the power supply, and cannot achieve timely cooling.

[0004] In the prior art, CN221076393U provides an explosion-proof UV lamp and photocatalytic reaction device for use in flammable and explosive locations. The explosion-proof UV lamp comprises a lamp base structure, a lamp body structure, and a lamp tail structure, which are sequentially connected. The lamp body structure includes a metal heat sink, an LED UV light source, and a cylindrical lampshade. The LED UV light source is attached to the outer surface of the metal heat sink, and the cylindrical lampshade is mounted outside the metal heat sink. The metal heat sink is axially provided with a cooling medium input channel, a cooling medium output channel, and a cable channel. A flow channel connecting the cooling medium input channel and the cooling medium output channel is formed between the lamp body structure and the lamp tail structure. By providing the cooling medium input channel and the cooling medium output channel within the metal heat sink, a cooling medium circuit is formed, thereby cooling the LED UV light source outside the metal heat sink. This achieves high cooling efficiency and speed. Furthermore, the lamp base, lamp body, and lamp tail structures are sealed, providing excellent explosion-proof performance.

[0005] Although this heat dissipation channel arrangement maintains the heat dissipation inside the UV lamp to a certain extent, heat exchange occurs when the cooling medium flows along the cooling medium input channel and then enters the cooling medium output channel for further heat exchange. The cooling medium flow direction is parallel to the length of the light bar. As a result, when the cooling medium moves to the corresponding position at the end of the light bar, the cooling medium temperature is likely to be relatively high, resulting in uneven heat dissipation of the light bar.

[0006] Secondly, the order of heat transfer on the metal radiator is the heat source generating part (lamp bead position) - the outer edge of the cooling medium output channel - the outer edge of the cooling medium input channel. The existing technology cannot quickly act on the heat source generating part when performing heat dissipation, causing the lamp bead to easily overheat. Summary of the Invention

[0007] The object of the present invention is to provide a plug-in explosion-proof ultraviolet lamp for photocatalysis and a photocatalytic system to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] Plug-in explosion-proof UV lamp for photocatalysis, including heat sink, light bar and lampshade;

[0010] The light bar is provided with a plurality of lights and is circumferentially mounted on the heat dissipation frame. The lampshade is sleeved on the heat dissipation frame and is sealed to a first plug and a second plug mounted at both ends of the heat dissipation frame.

[0011] The heat dissipation frame is provided with a cooling medium input channel and a cooling medium output channel along its length, and the input direction of the cooling medium input channel is opposite to the output direction of the cooling medium output channel;

[0012] A Y-shaped heat dissipation channel connecting the cooling medium input channel and the cooling medium output channel is formed on the heat dissipation frame near the light bar. The cooling medium in the cooling medium input channel enters the Y-shaped heat dissipation channel vertically, and is divided into two paths and flows through both sides of the light bar and then vertically merges into the cooling medium output channel.

[0013] As described above, the plug-in explosion-proof ultraviolet lamp for photocatalysis: the cooling medium input channel is arranged at the axial center position of the heat dissipation frame, and a plurality of cooling medium output channels are provided, and the plurality of cooling medium output channels are equidistantly distributed along the circumference of the cooling medium input channel.

[0014] The plug-in explosion-proof ultraviolet lamp for photocatalysis as described above: the Y-shaped heat dissipation channel is formed with a slit liquid inlet communicating with the cooling medium input channel and a communication channel communicating with the cooling medium output channel;

[0015] The sum of the passing areas of the slit liquid inlets of the multiple Y-shaped heat dissipation channels is smaller than the passing area of ​​the cooling medium input channel.

[0016] The plug-in explosion-proof ultraviolet lamp for photocatalysis as described above: the length of the Y-shaped heat dissipation channel along the flow direction of the cooling medium in the cooling medium input channel is shorter than the length of the cooling medium input channel and the cooling medium output channel.

[0017] The plug-in explosion-proof ultraviolet lamp for photocatalysis as described above: a reflux cavity communicating with the cooling medium input channel and the cooling medium output channel is formed between the second plug and the heat dissipation frame;

[0018] An elastic blocking member for increasing the pressure of the cooling medium flowing from the cooling medium input channel into the reflux chamber is provided on a side of the second plug facing the cooling medium input channel.

[0019] The plug-in explosion-proof ultraviolet lamp for photocatalysis as described above: the elastic barrier comprises:

[0020] a flow-limiting plug, the flow-limiting plug being inserted into an embedded cavity formed in the second plug and abutting against an elastic member installed in the embedded cavity;

[0021] One end of the flow limiting plug extending into the reflux cavity faces the cooling medium input channel.

[0022] The plug-in explosion-proof ultraviolet lamp for photocatalysis as described above: the light bar includes a heat dissipation substrate and a plurality of lamp beads mounted on the heat dissipation substrate, and a V-shaped extended heat dissipation plate is formed on the side of the heat dissipation substrate facing the heat dissipation frame.

[0023] The plug-in explosion-proof UV lamp for photocatalysis as described above: a V-shaped groove is formed on the heat dissipation frame, and the two paths of the Y-shaped heat dissipation channel are located on both sides of the V-shaped groove;

[0024] When the heat dissipation substrate is installed, the V-shaped extended heat dissipation plate is placed in the V-shaped groove and fixed on the heat dissipation frame, and the outer side of the V-shaped extended heat dissipation plate is tightly fitted with the inner wall of the V-shaped groove.

[0025] As described above, the plug-in explosion-proof ultraviolet lamp for photocatalysis: two strip-shaped limit blocks are symmetrically arranged at the position for installing the heat dissipation substrate on the heat dissipation frame, and strip-shaped limit slots are formed on both sides of the heat dissipation substrate to engage with the strip-shaped limit blocks.

[0026] The photocatalytic system comprises the above-mentioned plug-in explosion-proof ultraviolet lamp for photocatalysis.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The relatively low-temperature cooling medium diverted from the cooling medium input channel enters the Y-shaped heat dissipation channel, so that the cooling medium quickly impacts and contacts the heat sink near the light bar position, so that the cooling medium closest to the heat source quickly takes out the heat, reducing the heat transfer on the heat sink to a certain extent. Secondly, the cooling medium enters the Y-shaped heat dissipation channel vertically and cooperates with the branch design to make the cooling medium flow along the width direction of the light bar, reducing the flow time of the cooling medium near the heat source position, eliminating the problem of subsequent heat exchange effect deterioration caused by continuous heat exchange during the flow of the cooling medium flowing along the length of the light bar. At the same time, the design of the Y-shaped heat dissipation channel can also effectively increase the contact area with the heat sink. After the cooling medium is diverted in the Y-shaped heat dissipation channel, it can be more evenly covered on the heat sinks on both sides of the light bar, ensuring high efficiency and uniformity of heat dissipation.

[0029] This invention separates the flow of the medium from its heat absorption, designing axially parallel input and output channels, with the input channel located in the central axis. This prevents uneven temperatures before the medium reaches the cooling zone. A Y-shaped heat dissipation channel then radially guides the medium to the cooling zone. The two arms of the Y-shaped channel increase the contact area with the cooling zone. The larger temperature difference and contact area result in higher heat exchange efficiency.

[0030] The end of the Y-shaped heat dissipation channel is connected to the cooling medium output channel, ensuring that the cooling medium can be quickly discharged after flowing through the light bar and completing the heat exchange. At the same time, the outflow direction of the Y-shaped heat dissipation channel is perpendicular to the cooling medium output channel, which is conducive to the uniform distribution of the cooling medium during discharge, avoiding local overheating or uneven cooling problems, and allowing the heat generated by the light bar to quickly enter the cooling medium output channel and quickly contact the cooling medium in the cooling medium output channel, eliminating the problem of heat accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Schematic diagram of the structure of a plug-in explosion-proof UV lamp for photocatalysis;

[0032] Figure 2 A side view of a plug-in explosion-proof UV lamp for photocatalysis;

[0033] Figure 3 for Figure 2 Cross-section view in the AA direction;

[0034] Figure 4 for Figure 3 A magnified view of the structure at D in the middle;

[0035] Figure 5 for Figure 3 A magnified view of the structure at E in the middle;

[0036] Figure 6 A front view of a plug-in explosion-proof UV lamp for photocatalysis;

[0037] Figure 7 for Figure 6 Cross-section in the middle BB direction;

[0038] Figure 8 for Figure 6 Cross-section in the mid-CC direction;

[0039] Figure 9 This is a schematic diagram of the structure of a plug-in explosion-proof UV lamp for photocatalysis after the lampshade is removed;

[0040] Figure 10 This is a schematic diagram of the connection between the heat sink and the light bar in a plug-in explosion-proof UV lamp for photocatalysis;

[0041] Figure 11 This is a diagram of the state after the heat dissipation frame and a light bar in a plug-in explosion-proof UV lamp for photocatalysis are separated;

[0042] Figure 12 This is a state diagram from another angle of the plug-in explosion-proof UV lamp used for photocatalysis after the heat dissipation frame is separated from a light bar;

[0043] Figure 13 This is a diagram of the cooling medium flow state in the Y-shaped heat dissipation channel of a plug-in explosion-proof UV lamp used for photocatalysis.

[0044] In the figure: 1. Lampshade; 2. Rubber seal; 3. Adapter; 4. Water outlet connector; 5. Water inlet connector; 6. Heat dissipation frame; 7. Heat dissipation substrate; 8. Lamp beads; 9. Temperature protection switch; 10. Cooling medium input channel; 11. Slit liquid inlet; 12. First plug; 13. First seal; 14. Second seal; 15. Cooling medium output channel; 16. Second plug; 17. Third seal; 18. Fourth seal; 19. Embedded cavity; 20. Elastic part; 21. Current limiting plug; 22. Y-type heat dissipation channel; 23. Connecting channel; 24. Wire trough; 25. Notch; 26. V-shaped groove; 27. V-shaped extended heat dissipation plate; 28. Strip limit card block; 29. ​​Strip limit card slot. DETAILED DESCRIPTION

[0045] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise indicated.

[0046] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0047] In addition, numerous specific details are provided in the following specific examples to better illustrate the present application. Those skilled in the art will appreciate that the present application can be practiced without certain specific details. In some instances, methods, means, and components well known to those skilled in the art are not described in detail in order to highlight the main purpose of the present application.

[0048] See also Figures 1-8 In an embodiment of the present invention, a plug-in explosion-proof ultraviolet lamp for photocatalysis includes a heat dissipation frame 6, a light bar and a lampshade 1; the light bar is provided in plurality and is circumferentially installed on the heat dissipation frame 6, the lampshade 1 is sleeved on the heat dissipation frame 6 and is sealed with a first plug 12 and a second plug 16 installed at both ends of the heat dissipation frame 6, the heat dissipation frame 6 is provided with a cooling medium input channel 10 and a cooling medium output channel 15 along its length direction, and the input direction of the cooling medium input channel 10 is opposite to the output direction of the cooling medium output channel 15, and a rubber seal 2 is also installed at both ends of the lampshade 1. When the explosion-proof ultraviolet lamp is in use, the rubber seal 2 can be attached to the outside of the tank body to achieve a light sealing effect, effectively preventing ultraviolet leakage, and at the same time enhancing the sealing performance between the lampshade 1 and the tank body, ensuring that the explosion-proof ultraviolet lamp can still work stably in harsh environments and extending its service life.

[0049] Specifically, an adapter 3 is installed at the end of the first plug 12 away from the heat dissipation frame 6, and a water outlet connector 4 and a water inlet connector 5 are provided on the adapter 3. The water outlet connector 4 is connected to the cooling medium output channel 15 through a first channel formed on the first plug 12, and the water inlet connector 5 is connected to the cooling medium input channel 10 through a second channel formed on the first plug 12.

[0050] The cooling medium flows through the water inlet connector 5 through the second channel and enters the cooling medium input channel 10, then enters the cooling medium output channel 15 from the end of the cooling medium input channel 10, and then flows out from the water outlet connector 4 to form a circulating cooling medium flow cavity, thereby achieving heat dissipation treatment of the heat dissipation frame 6.

[0051] It should be noted that the first plug 12 is sealed to the heat dissipation frame 6 through the first seal 13, and the second plug 16 is sealed to the heat dissipation frame 6 through the fourth seal 18, thereby eliminating the problem of overflow of the cooling medium; further, the lampshade 1 is sealed to the first plug 12 and the second plug 16 through the second seal 14 and the third seal 17 respectively, ensuring the sealing performance of the entire device, avoiding leakage of cooling medium or light, and affecting the use effect and safety.

[0052] Further, see Figure 3 、 Figure 6-Figure 8 and Figure 13 A Y-shaped heat dissipation channel 22 connecting the cooling medium input channel 10 and the cooling medium output channel 15 is formed on the heat dissipation frame 6 near the light bar. The cooling medium in the cooling medium input channel 10 vertically enters the Y-shaped heat dissipation channel 22 and is divided into two paths and flows through both sides of the light bar and then vertically merges into the cooling medium output channel 15.

[0053] In this embodiment, the cooling medium with a relatively low temperature diverted from the cooling medium input channel 10 enters the Y-shaped heat dissipation channel 22, so that the cooling medium quickly impacts and contacts the heat sink 6 near the position of the light bar, so that the cooling medium closest to the heat source quickly takes out the heat, reducing the heat transfer on the heat sink 6 to a certain extent. Secondly, the cooling medium enters the Y-shaped heat dissipation channel 22 vertically and cooperates with the branch design to make the cooling medium flow along the width direction of the light bar, reducing the flow time of the cooling medium near the heat source position, eliminating the problem of subsequent heat exchange effect deterioration caused by continuous heat exchange during the flow of the cooling medium flowing along the length direction of the light bar. At the same time, the design of the Y-shaped heat dissipation channel 22 can also effectively increase the contact area with the heat sink 6. After the cooling medium is diverted in the Y-shaped heat dissipation channel 22, it can be more evenly covered on the heat sink 6 on both sides of the light bar, ensuring high efficiency and uniformity of heat dissipation.

[0054] In addition, the end of the Y-shaped heat dissipation channel 22 is connected to the cooling medium output channel 15, ensuring that the cooling medium can be quickly discharged after flowing through the light bar and completing heat exchange. At the same time, the outflow direction of the Y-shaped heat dissipation channel 22 is perpendicular to the cooling medium output channel 15, which is conducive to the uniform distribution of the cooling medium when discharged, avoiding local overheating or uneven cooling problems, so that the heat generated by the light bar quickly enters the cooling medium output channel 15 and quickly contacts the cooling medium in the cooling medium output channel 15, eliminating the problem of heat accumulation.

[0055] Further, see Figure 6-Figure 7The cooling medium input channel 10 is arranged at the axial center position of the heat dissipation frame 6, and a plurality of cooling medium output channels 15 are provided, and the plurality of cooling medium output channels 15 are evenly distributed along the circumference of the cooling medium input channel 10.

[0056] The setting position of the cooling medium output channel 15 is determined based on the layout of the light bar, which is used to ensure that the cooling medium can dissipate heat with the heat dissipation frame 6 at the position of each light bar to improve the uniformity of heat dissipation. In addition, the number and layout of the cooling medium output channels 15 can be adjusted according to actual needs to adapt to light bars of different sizes and powers. This embodiment does not make specific limitations on this.

[0057] Furthermore, the Y-shaped heat dissipation channel 22 is formed with a slit liquid inlet 11 communicating with the cooling medium input channel 10 and a communication channel 23 communicating with the cooling medium output channel 15;

[0058] The sum of the passing areas of the slit liquid inlets 11 of the plurality of Y-shaped heat dissipation channels 22 is smaller than the passing area of ​​the cooling medium input channel 10 .

[0059] In this embodiment, by setting up the slit liquid inlet 11, the cooling medium entering the Y-shaped heat dissipation channel 22 from the cooling medium input channel 10 has a certain speed-increasing effect, so that the cooling medium can pass through the Y-shaped heat dissipation channel 22 at a certain speed to improve the heat dissipation effect of the heat dissipation frame 6 where the light strip is located.

[0060] Preferably, a reflux cavity connecting the cooling medium input channel 10 and the cooling medium output channel 15 is formed between the second plug 16 and the heat dissipation frame 6; an elastic blocking member is provided on the side of the second plug 16 facing the cooling medium input channel 10 for increasing the pressure of the cooling medium flowing from the cooling medium input channel 10 into the reflux cavity.

[0061] Among them, through the provision of an elastic barrier, the cooling medium in the cooling medium input channel 10 needs to maintain a certain pressure to push open the elastic barrier, and the pressure is transmitted to the slit liquid inlet 11, ensuring that the cooling medium entering the Y-shaped heat dissipation channel 22 from the cooling medium input channel 10 has a certain speed-increasing effect, and at the same time, there is space for flowing from the cooling medium input channel 10 into the reflux cavity, so that the cooling medium entering the cooling medium output channel 15 can also fill the cooling medium output channel 15, thereby improving the overall heat dissipation efficiency. In addition, the provision of the elastic barrier can also stabilize the flow of the cooling medium, avoid turbulence in the cooling medium during the flow process, and further enhance the heat dissipation effect.

[0062] Secondly, when the cooling medium fills the cooling medium output channel 15, the heat dissipation frame 6 around the cooling medium output channel 15 can be quickly dissipated, and the cooling medium flowing out from the connecting channel 23 has an impact effect on the cooling medium in the cooling medium output channel 15, which can increase the pressure in the cooling medium output channel 15 to a certain extent, so as to increase the flow rate of the cooling medium in the cooling medium output channel 15, thereby improving the heat dissipation efficiency of the cooling medium to the heat dissipation frame 6, which not only ensures the effective circulation of the cooling medium, but also further improves the heat dissipation performance through the impact effect and increased pressure, and optimizes the overall heat dissipation effect.

[0063] Exemplarily, in one embodiment, the elastic blocking member includes a flow limiting plug 21, which is inserted into the embedded cavity 19 formed in the second plug 16 and abuts against the elastic member 20 installed in the embedded cavity 19; one end of the flow limiting plug 21 extending into the reflux cavity is opposite to the cooling medium input channel 10.

[0064] When the cooling medium has not entered the cooling medium input channel 10, the flow limiting plug 21 is in a state of abutting the port of the cooling medium input channel 10 under the action of the elastic member 20. When the cooling medium flows along the cooling medium input channel 10 to its port, the flow limiting plug 21 is squeezed, so that the flow limiting plug 21 moves toward the second plug 16 and squeezes the elastic member 20. When the cooling medium reaches a flow equilibrium state, the elastic member 20 maintains a reset force on the flow limiting plug 21, thereby maintaining a certain pressure in the cooling medium input channel 10, ensuring that the cooling medium can obtain a certain initial velocity before entering the Y-shaped heat dissipation channel 22, thereby improving the flow efficiency of the cooling medium in the Y-shaped heat dissipation channel 22. In addition, the cooperation between the flow limiting plug 21 and the elastic member 20 enables the cooling medium to automatically adjust the pressure during the flow process, avoiding the problem of poor heat dissipation effect caused by insufficient pressure.

[0065] In this embodiment, the length of the Y-shaped heat dissipation channel 22 along the flow direction of the cooling medium in the cooling medium input channel 10 is shorter than the length of the cooling medium input channel 10 and the cooling medium output channel 15, so that the cooling medium flowing through the Y-shaped heat dissipation channel 22 only acts on the heat dissipation frame 6 close to the position where the light bar is set, so that the cooling medium contacts the heat dissipation frame 6 at a lower initial temperature, and ensures that the highest heat exchange efficiency is obtained under the largest possible temperature difference, ensuring that the heat at the position close to the heat source on the heat dissipation frame 6 is quickly dissipated.

[0066] Further, see Figures 9-12The light bar includes a heat dissipation substrate 7 and a plurality of lamp beads 8 mounted on the heat dissipation substrate 7. A V-shaped extended heat dissipation plate 27 is formed on the side of the heat dissipation substrate 7 facing the heat dissipation frame 6. A V-shaped groove 26 is formed on the heat dissipation frame 6. The two paths of the Y-shaped heat dissipation channel 22 are located on both sides of the V-shaped groove 26. When the heat dissipation substrate 7 is installed, the V-shaped extended heat dissipation plate 27 is placed in the V-shaped groove 26 and fixed on the heat dissipation frame 6. The outer side of the V-shaped extended heat dissipation plate 27 is tightly fitted with the inner wall of the V-shaped groove 26.

[0067] The heat dissipation substrate 7 and the V-shaped extended heat dissipation plate 27 are integrally formed. The V-shaped extended heat dissipation plate 27 can effectively increase the heat dissipation area of ​​the heat dissipation substrate 7. At the same time, the shape design of the Y-shaped heat dissipation channel 22 is combined to reduce the distance between the Y-shaped heat dissipation channel 22 and the heat source, thereby improving the heat dissipation effect. At the same time, the close fit between the V-shaped extended heat dissipation plate 27 and the V-shaped groove 26 ensures that the heat generated by the lamp bead 8 during operation can be dissipated in time, thereby extending the service life of the lamp bead 8 and improving the working stability and reliability of the entire lighting device. In addition, the assembly difficulty between the heat dissipation substrate 7 and the heat dissipation frame 6 can also be reduced.

[0068] Two strip limit blocks 28 are symmetrically provided at the position of the heat dissipation frame 6 for installing the heat dissipation substrate 7, and strip limit slots 29 are formed on both sides of the heat dissipation substrate 7 to engage with the strip limit blocks 28. When installing the heat dissipation substrate 7, the engagement of the strip limit blocks 28 and the strip limit slots 29 can ensure the accurate positioning of the heat dissipation substrate 7 on the heat dissipation frame 6, avoiding deviation or shaking during the installation process. The design of the strip limit blocks 28 and the strip limit slots 29 not only simplifies the assembly process between the heat dissipation substrate 7 and the heat dissipation frame 6, but also enhances the connection strength between them, so that the heat dissipation substrate 7 can be more firmly fixed on the heat dissipation frame 6, so that the heat dissipation substrate 7 and the heat dissipation frame 6 maintain a close fit, reducing the loss during heat transfer, and helping to improve the heat dissipation efficiency.

[0069] At the same time, the strip-shaped limiting block 28 and the strip-shaped limiting slot 29 can limit the large span of the heat dissipation substrate 7, eliminating the problem of slight bulge of the heat dissipation substrate 7 due to warping in some positions or failure to dissipate heat in time.

[0070] In order to improve the stability of the connection between the heat dissipation substrate 7 and the heat dissipation frame 6, mounting holes are formed at both ends of the heat dissipation substrate 7, and screws are passed through the mounting holes to stably fix the heat dissipation substrate 7 on the heat dissipation frame 6.

[0071] Among them, it should be noted that a wire groove 24 is formed on the heat dissipation frame 6, and the wires connecting the lamp beads 8 are led out from the adapter 3 along the wire groove 24. When the wires are arranged along the wire groove 24, direct contact between the wires and the heat dissipation frame 6 or other components can be effectively avoided. At the same time, the design of the wire groove 24 makes the routing of the wires more tidy, which is conducive to improving the overall aesthetics of the lighting device. In order to facilitate the arrangement of the wires, a notch 25 is also formed on the wire groove 24, so that the position where the wires need to turn is at the notch 25, eliminating the problem of cluttered wires. Furthermore, the design of the notch 25 not only facilitates the turning arrangement of the wires, but also can reduce the friction and extrusion of the wires at the turning points, protect the wires from damage, extend the service life of the wires, and improve the safety performance of the explosion-proof ultraviolet lamp.

[0072] Furthermore, a temperature protection switch 9 is installed on the heat dissipation rack 6. The temperature protection switch 9 is electrically connected to the lamp bead 8. The temperature protection switch 9 can automatically disconnect the power supply of the lamp bead 8 based on the temperature of the heat dissipation rack 6 to ensure that automatic power-off control is achieved when the temperature on the heat dissipation rack 6 exceeds the threshold set by the temperature protection switch 9.

[0073] As another embodiment of the present invention, a photocatalytic system is provided, including the above-mentioned plug-in explosion-proof ultraviolet lamp for photocatalysis.

[0074] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0075] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. Plug-in explosion-proof UV lamp for photocatalysis, including heat sink, light bar and lampshade; The light bar is provided with a plurality of lights and is circumferentially mounted on the heat dissipation frame. The lampshade is sleeved on the heat dissipation frame and is sealed to a first plug and a second plug mounted at both ends of the heat dissipation frame. The heat dissipation frame is provided with a cooling medium input channel and a cooling medium output channel along its length, and the input direction of the cooling medium input channel is opposite to the output direction of the cooling medium output channel; It is characterized by: A plurality of Y-shaped heat dissipation channels connecting the cooling medium input channel and the cooling medium output channel are formed on the heat dissipation frame near the light bar. The cooling medium in the cooling medium input channel vertically enters the Y-shaped heat dissipation channel and is divided into two paths that flow through both sides of the light bar and then vertically merge into the cooling medium output channel. The cooling medium input channel is provided at the axis center position of the heat dissipation frame, and a plurality of cooling medium output channels are provided, and the plurality of cooling medium output channels are equidistantly distributed along the circumference of the cooling medium input channel; The Y-shaped heat dissipation channel is formed with a slit liquid inlet communicating with the cooling medium input channel and a communication channel communicating with the cooling medium output channel; The sum of the passing areas of the slit liquid inlets of the multiple Y-shaped heat dissipation channels is smaller than the passing area of ​​the cooling medium input channel; The length of the Y-shaped heat dissipation channel along the flow direction of the cooling medium in the cooling medium input channel is shorter than the length of the cooling medium input channel and the cooling medium output channel; A reflux cavity communicating with the cooling medium input channel and the cooling medium output channel is formed between the second plug and the heat dissipation frame; An elastic blocking member for increasing the pressure of the cooling medium flowing from the cooling medium input channel into the reflux chamber is provided on a side of the second plug facing the cooling medium input channel.

2. The plug-in explosion-proof UV lamp for photocatalysis according to claim 1, characterized in that: The elastic blocking member comprises: a flow-limiting plug, the flow-limiting plug being inserted into an embedded cavity formed in the second plug and abutting against an elastic member installed in the embedded cavity; One end of the flow limiting plug extending into the reflux cavity faces the cooling medium input channel.

3. The plug-in explosion-proof UV lamp for photocatalysis according to claim 1, characterized in that: The light bar includes a heat dissipation substrate and a plurality of lamp beads mounted on the heat dissipation substrate. A V-shaped extended heat dissipation plate is formed on one side of the heat dissipation substrate facing the heat dissipation frame.

4. The plug-in explosion-proof UV lamp for photocatalysis according to claim 3, characterized in that: A V-shaped groove is formed on the heat dissipation frame, and the two paths of the Y-shaped heat dissipation channel are located on both sides of the V-shaped groove; When the heat dissipation substrate is installed, the V-shaped extended heat dissipation plate is placed in the V-shaped groove and fixed on the heat dissipation frame, and the outer side of the V-shaped extended heat dissipation plate is tightly fitted with the inner wall of the V-shaped groove.

5. The plug-in explosion-proof UV lamp for photocatalysis according to claim 4, characterized in that: Two strip-shaped limiting blocks are symmetrically arranged at positions on the heat dissipation frame for installing the heat dissipation substrate, and strip-shaped limiting slots for engaging with the strip-shaped limiting blocks are formed on both sides of the heat dissipation substrate.

6. A photocatalytic system, characterized in that The invention comprises a plug-in explosion-proof ultraviolet lamp for photocatalysis as described in any one of claims 1 to 5.

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