Explosion-proof X-ray emission box
By installing cryogenic vortex tubes and heat exchange chambers on the outside of the explosion-proof enclosure, the heat dissipation problem of the explosion-proof enclosure is solved by using the exchange of cold and hot airflows to absorb the heat of the X-ray transmitter, thus achieving low-cost and high-efficiency heat dissipation.
Patent Information
- Application Number
- CN202422560343.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-10-23
AI Technical Summary
Existing explosion-proof enclosures are inefficient at dissipating heat in high-power X-ray transmitters, and are complex and costly.
The system uses a low-temperature vortex tube to generate two airflows: a cold airflow and a hot airflow. The cold airflow enters the heat exchange chamber through the air inlet and exchanges with the air inside the explosion-proof box, absorbing the heat from the X-ray emitter. The hot airflow is discharged through the heat pipe. Combined with the structure of axial flow fan and heat dissipation fins, efficient heat dissipation is achieved.
It achieves the goal of keeping the temperature inside the explosion-proof enclosure within the operating requirements of the X-ray transmitter. It has a simple structure, low cost, and significantly improved heat dissipation.
Smart Images
Figure CN223488457U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of coal gangue sorting equipment, specifically to an explosion-proof X-ray emission box. Background Technology
[0002] X-ray-based coal gangue separation technology has been widely applied in underground coal mines. This technology has greatly improved the production capacity of coal gangue separation, and has met the operational indicators in terms of separation particle size, separation accuracy and stability. It has saved the cost of gangue being brought to the surface, saved land and water resources, and improved the utilization efficiency of coal.
[0003] X-ray transmitters generate a large amount of heat during operation, and their operating environment requirements are quite stringent. Furthermore, according to the explosion-proof requirements for mining, X-ray transmitters used in underground coal mines must adopt mining-grade explosion-proof enclosures. However, the characteristics of mining-grade explosion-proof enclosures make heat dissipation extremely difficult. Existing explosion-proof enclosures typically employ a structure with copper plates installed on the inner wall and heat sinks installed on the outside, along with fans for room-temperature cooling, in order to conduct the internal heat to the outside. However, the heat dissipation efficiency of the heat dissipation structure composed of copper plates, heat sinks, and fans is insufficient to guarantee the normal operation of high-power X-ray transmitters.
[0004] Therefore, developing and designing an explosion-proof X-ray emitting box that can meet the heat dissipation requirements of high-power X-ray transmitters, with a simple structure, convenient use, and low cost is an urgent problem to be solved at this stage. Utility Model Content
[0005] To address the problems existing in the prior art, this utility model provides an explosion-proof X-ray emission box. The X-ray transmitter is installed inside the explosion-proof box. The low-temperature vortex tube on the outside of the explosion-proof box wall can generate a vortex in the high-speed airflow to separate it into two airflows: a cold airflow and a hot airflow. The cold airflow can enter the heat exchange chamber through the air inlet and exchange heat with the air inside the explosion-proof box, thereby effectively absorbing the heat generated by the X-ray transmitter and ensuring that the temperature inside the explosion-proof box meets the operating requirements of the X-ray transmitter. The structure is simple, easy to use, and low in cost.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] This utility model provides an explosion-proof X-ray emission box, comprising:
[0008] An explosion-proof enclosure, wherein the enclosure wall is provided with an air inlet and an air outlet; and an X-ray emitter is installed inside the explosion-proof enclosure.
[0009] A cryogenic vortex tube is fixed to the outside of the explosion-proof box. The cryogenic vortex tube has a vortex chamber inside, and the vortex chamber is connected to a nozzle, a cold pipe and a hot pipe respectively. The outlet of the cold pipe is connected to the air inlet.
[0010] A heat exchange chamber is provided inside the explosion-proof box. One end of the heat exchange chamber is connected to the air inlet, and the other end of the heat exchange chamber is connected to the air outlet.
[0011] As a preferred technical solution, it also includes a heat dissipation box, in which the low-temperature eddy current tube is disposed, and the heat dissipation box is fixed to the explosion-proof box.
[0012] As a preferred technical solution, the heat dissipation box is provided with heat dissipation louvers on the wall surface near the outlet of the heat pipe.
[0013] As a preferred technical solution, the heat pipe extends in a direction away from the explosion-proof box, and the outlet of the heat pipe is located at the end of the heat pipe away from the explosion-proof box;
[0014] And / or, a regulating valve is provided at the outlet of the heat pipe.
[0015] As a preferred technical solution, the heat exchange cavity is configured as a heat exchange box, and the heat exchange box is provided with several baffles.
[0016] As a preferred technical solution, the heat exchange cavity is configured as a heat exchange pipe, and the heat exchange pipe is S-shaped or spiral-shaped inside the explosion-proof box.
[0017] As a preferred technical solution, the outer wall of the heat exchange cavity is provided with a number of heat dissipation fins.
[0018] As a preferred technical solution, the heat exchange cavity is made of stainless steel.
[0019] As a preferred technical solution, the explosion-proof enclosure is equipped with several axial flow fans.
[0020] As a preferred technical solution, the air inlet and the air outlet are respectively located on two opposite side walls of the explosion-proof enclosure.
[0021] The beneficial effects of this utility model are as follows:
[0022] The X-ray transmitter of this invention is installed inside an explosion-proof enclosure. The low-temperature vortex tube on the outside of the enclosure wall can generate a vortex in the high-speed airflow, separating it into two airflows: a hot airflow and a cold airflow. The hot airflow can be discharged through the heat pipe, while the cold airflow can enter the heat exchange chamber through the air inlet and fully exchange heat with the air inside the explosion-proof enclosure. This effectively absorbs the heat generated by the X-ray transmitter, ensuring that the temperature inside the explosion-proof enclosure meets the operating requirements of the X-ray transmitter. The invention has a simple structure, is easy to use, and is inexpensive. Attached Figure Description
[0023] Figure 1This is a top view of one embodiment of an explosion-proof X-ray emitting box according to the present invention;
[0024] Figure 2 for Figure 1 Sectional view along the middle AA direction;
[0025] Figure 3 for Figure 2 Enlarged view of region B in the middle;
[0026] Figure 4 This is a schematic diagram of the heat exchange cavity in another embodiment of an explosion-proof X-ray emission box according to the present invention.
[0027] In the diagram: 1-Explosion-proof box, 11-Air inlet, 12-Air outlet, 13-Axial flow fan, 2-X-ray emitter, 3-Cryogenic vortex tube, 31-Vortex chamber, 32-Nozzle, 33-Cold pipe, 34-Heat pipe, 4-Heat exchange chamber, 41-Baffle plate, 42-Heat dissipation fins, 5-Heat dissipation box, 51-Heat dissipation louvers. Detailed Implementation
[0028] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.
[0029] Example 1
[0030] Please refer to Figures 1-3 This invention provides an embodiment of an explosion-proof X-ray emission box, comprising an explosion-proof box 1, an X-ray emitter 2 disposed inside the explosion-proof box 1 to meet the explosion-proof requirements for mining applications; an air inlet 11 and an air outlet 12 are provided on the wall of the explosion-proof box 1, a heat exchange chamber 4 is disposed inside the explosion-proof box 1, one end of the heat exchange chamber 4 is connected to the air inlet 11, and the other end of the heat exchange chamber 4 is connected to the air outlet 12, forming a heat exchange channel with the air inside the wall of the explosion-proof box 1; a low-temperature vortex tube 3 is fixed outside the explosion-proof box 1, and the low-temperature vortex tube 3 has a vortex chamber 31 inside, which is connected to a nozzle 32, a cold pipe 33, and a hot pipe 34 respectively; compressed air is input from the nozzle 32, expands, accelerates and rotates in the vortex chamber 31 and then enters the interior of the hot pipe 34. The high-speed airflow inside the heat pipe 34 undergoes energy conversion after vortex exchange, splitting the high-speed airflow into two streams: a hot stream and a cold stream. Specifically, some of the compressed air is discharged from the opening of the heat pipe 34 as a hot stream, while the remaining compressed air returns to the vortex chamber 31 at a lower speed and forms a cold stream, which then converges at the outlet of the cold pipe 33 and is discharged. The temperature of the cold stream can be 20-30° lower than the air source temperature, and the temperature of the cold stream can even be as low as -20°C. The outlet of the cold pipe 33 is connected to the air inlet 11, and the cold stream enters the heat exchange chamber 4 through the air inlet 11 to exchange heat with the air inside the explosion-proof box 1, effectively absorbing the heat generated by the X-ray emitter 2 and ensuring that the temperature inside the explosion-proof box 1 meets the operating requirements of the X-ray emitter 2.
[0031] It needs to be explained that, Figure 1 The top view of the explosion-proof enclosure 1 is hidden behind its lid.
[0032] For details, please refer to Figure 2 The explosion-proof box 1 shall be designed and manufactured in accordance with GB3836 standard. The top of the explosion-proof box 1 is designed with a box cover, and the side of the explosion-proof box 1 is designed with a wiring cavity. The air inlet 11 and the air outlet 12 are preferably located on two opposite side walls of the explosion-proof box 1, which facilitates the installation of the heat exchange chamber 4 and ensures that the heat exchange chamber 4 has sufficient length to increase the flow time of the cold air and enable the cold air to fully exchange heat in the heat exchange chamber 4.
[0033] In this embodiment, please refer to Figure 1 and Figure 2 The present invention should also include a heat dissipation box 5, which is fixed on the explosion-proof box 1. The low-temperature eddy tube 3 is disposed inside the heat dissipation box 5, and the heat dissipation box 5 can effectively protect the low-temperature eddy tube 3.
[0034] For further details, please refer to Figure 1 and Figure 2 To ensure heat dissipation, a heat dissipation louver 51 is provided on the wall of the heat sink 5 near the outlet of the heat pipe 34. The hot airflow discharged from the opening of the heat pipe 34 can be quickly discharged through the heat dissipation louver 51 to prevent the internal temperature of the heat sink 5 from becoming too high.
[0035] For details, please refer to Figure 2 and Figure 3 The heat pipe 34 should extend in a direction away from the explosion-proof box 1, and the outlet of the heat pipe 34 should be located at the end of the heat pipe 34 away from the explosion-proof box 1, so as to effectively prevent the hot air flow discharged from the opening of the heat pipe 34 from affecting the explosion-proof box 1. Furthermore, a regulating valve should be provided at the outlet of the heat pipe 34. The regulating valve should be a temperature regulating valve. The regulating valve will only open when the high-speed air flow in the heat pipe 34 reaches the preset temperature after eddy current exchange, and the hot air flow will be discharged from the opening of the heat pipe 34, which can effectively divide the high-speed air flow in the heat pipe 34 into two air flows, cold and hot.
[0036] In this embodiment, please refer to Figure 2 The heat exchange chamber is set as a heat exchange box, and several baffles 41 form a curved heat exchange channel inside the heat exchange box, ensuring that the cold airflow flows fully inside the heat exchange box and improving the heat exchange effect.
[0037] It should be noted that the heat exchange chamber 4 is preferably designed as part of the entire explosion-proof enclosure 1, thus forming a reliable built-in structure. The heat exchange chamber 4 is preferably made of stainless steel, which has good heat exchange effect and high structural strength.
[0038] In this embodiment, please refer to Figure 1 and Figure 2 The explosion-proof enclosure 1 should be equipped with several axial flow fans 13. The axial flow fans 13 can promote the air flow in the explosion-proof enclosure 1, so that the air in the explosion-proof enclosure 1 can be fully convected, and further improve the heat exchange effect.
[0039] Example 2
[0040] Please refer to Figure 4 The main difference between this embodiment and embodiment one is that the heat exchange chamber 4 is set as a heat exchange pipe, which is S-shaped inside the explosion-proof box 1. The cold air flows inside the heat exchange pipe and can also fully exchange heat with the air inside the explosion-proof box 1. In other embodiments, the heat exchange pipe can also be spiral-shaped, as long as it can effectively reduce the temperature inside the explosion-proof box 1.
[0041] For further details, please refer to Figure 4 In order to improve the heat exchange effect, the outer wall of the heat exchange cavity 4 is preferably provided with a number of heat dissipation fins 42, and the heat dissipation fins 42 should be made of high thermal conductivity materials (such as copper, aluminum, etc.).
[0042] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An explosion-proof X-ray emission box, characterized in that, include: An explosion-proof enclosure (1) is provided with an air inlet (11) and an air outlet (12) on its wall; an X-ray transmitter (2) is provided inside the explosion-proof enclosure (1); Low-temperature vortex tube (3), the low-temperature vortex tube (3) is fixed outside the explosion-proof box (1), the low-temperature vortex tube (3) has a vortex chamber (31) inside, the vortex chamber (31) is connected to a nozzle (32), a cold pipe (33) and a hot pipe (34) respectively, and the outlet of the cold pipe (33) is connected to the air inlet (11); A heat exchange chamber (4) is located inside the explosion-proof box (1). One end of the heat exchange chamber (4) is connected to the air inlet (11), and the other end of the heat exchange chamber (4) is connected to the air outlet (12).
2. The explosion-proof X-ray emitting box according to claim 1, characterized in that, It also includes a heat sink (5), the low-temperature eddy tube (3) is disposed inside the heat sink (5), and the heat sink (5) is fixed on the explosion-proof box (1).
3. The explosion-proof X-ray emitting box according to claim 2, characterized in that, The heat sink (5) has heat dissipation louvers (51) on the wall near the outlet of the heat pipe (34).
4. An explosion-proof X-ray emitting box according to claim 1 or 3, characterized in that, The heat pipe (34) extends in a direction away from the explosion-proof box (1), and the outlet of the heat pipe (34) is located at one end of the heat pipe (34) away from the explosion-proof box (1); And / or, a regulating valve is provided at the outlet of the heat pipe (34).
5. The explosion-proof X-ray emitting box according to claim 1, characterized in that, The heat exchange chamber (4) is configured as a heat exchange box, and the heat exchange box is provided with several baffles (41).
6. The explosion-proof X-ray emitting box according to claim 1, characterized in that, The heat exchange chamber (4) is configured as a heat exchange pipe, which is S-shaped or spiral-shaped inside the explosion-proof box (1).
7. An explosion-proof X-ray emitting box according to claim 5 or 6, characterized in that, The outer wall of the heat exchange cavity (4) is provided with several heat dissipation fins (42).
8. An explosion-proof X-ray emitting box according to claim 5 or 6, characterized in that, The heat exchange chamber (4) is made of stainless steel.
9. The explosion-proof X-ray emitting box according to claim 1, characterized in that, The explosion-proof enclosure (1) is equipped with several axial flow fans (13).
10. The explosion-proof X-ray emitting box according to claim 1, characterized in that, The air inlet (11) and the air outlet (12) are located on two opposite side walls of the explosion-proof box (1), respectively.