Heat dissipation device and nuclear power excitation simulation machine

Abstract

The utility model provides a heat dissipation device and a nuclear power excitation simulation machine, and relates to the technical field of heat dissipation equipment, the heat dissipation device comprises an air guide pipe and an airflow guide piece, the air guide pipe is vertically arranged, and the air guide pipe is provided with a top end and a bottom end; the airflow guiding piece is arranged at the top end of the air guiding pipe and provided with a first air inlet, a first air outlet and a cavity, a partition plate is arranged in the cavity, the cavity is divided into an air inlet cavity and an air outlet cavity through the partition plate, the first air inlet is communicated with the air inlet cavity, the air inlet cavity is communicated with the air guiding pipe, and the first air outlet is communicated with the air outlet cavity. A second air inlet communicated with the bottom end is formed in the bottom of the air outlet cavity. According to the device, cold air enters from the top end, and hot air subjected to heat exchange is discharged from the top end, so that dust and other impurities in the air at the bottom can be effectively prevented from entering the equipment, the heat dissipation effect can be guaranteed, and the performance of the equipment can be guaranteed.

Description

Heat dissipation device and nuclear power excitation simulator Technical Field

[0001] This utility model relates to the field of heat dissipation equipment technology, and in particular to a heat dissipation device and a nuclear power excitation simulator. Background Technology

[0002] Currently, heat dissipation devices for electronic equipment, power cabinets, or industrial equipment typically employ a bottom-intake and top-exhaust design. This design is based on the principle that hot air rises naturally; cool air enters from the bottom of the equipment, flows past the heating elements, is heated, rises, and is finally exhausted from the top.

[0003] For example, patent CN113993320A discloses a power engineering communication cabinet with heat dissipation, ventilation, dust prevention, and dehumidification. It dissipates heat through two separate and cross-circulation channels, resulting in good ventilation and heat dissipation. Simultaneously, the intake air is filtered by a filter, and the exhaust system provides one-way ventilation, effectively preventing dust from entering the cabinet. However, the bottom air inlet easily draws in dust, particles, or liquids from the ground. Long-term accumulation can lead to filter blockage, reduced heat dissipation efficiency, and even equipment malfunction. Summary of the Invention

[0004] In view of this, this utility model proposes a heat dissipation device and a nuclear power excitation simulator, which can solve the problem that traditional heat dissipation devices use bottom air intake, which easily leads to filter clogging and reduced heat dissipation efficiency.

[0005] The technical solution of this utility model is implemented as follows:

[0006] This utility model provides a heat dissipation device, including:

[0007] An air duct, wherein the air duct is vertically arranged and has a top end and a bottom end; and

[0008] An airflow guide is disposed at the top of the air duct. The airflow guide has a first air inlet, a first air outlet, and a cavity. A partition is disposed in the cavity, and the cavity is divided into an air inlet cavity and an air outlet cavity by the partition. The first air inlet is connected to the air inlet cavity, the air inlet cavity is connected to the air duct, the first air outlet is connected to the air outlet cavity, and a second air inlet is provided at the bottom of the air outlet cavity, which is connected to the bottom end.

[0009] Based on the above technical solutions, preferably, the air intake cavity has a bottom wall, and the top end of the air duct is connected to the bottom wall.

[0010] More preferably, the height of the top of the air duct is higher than the height of the bottom wall.

[0011] More preferably, a drain outlet is provided on the bottom wall, and a water pipe is connected to the drain outlet.

[0012] More preferably, the axial direction of the water flow pipe is parallel to the axial direction of the air guide pipe.

[0013] Based on the above technical solutions, preferably, both the first air inlet and the first air outlet are equipped with cooling fans.

[0014] Based on the above technical solutions, preferably, both the first air inlet and the first air outlet are provided with filters, the filter located at the first air inlet is disposed at the air inlet end of the cooling fan located at the first air inlet; the filter located at the first air outlet is disposed at the air outlet end of the cooling fan located at the first air outlet.

[0015] Based on the above technical solutions, preferably, the air duct is connected to at least one branch pipe, the axis of the branch pipe is connected at an angle to the axis of the air duct, and the branch pipe has an air outlet connected to the second air inlet.

[0016] More preferably, the air outlet direction is flexibly set.

[0017] This utility model also provides a nuclear power excitation simulator, including:

[0018] A chassis, wherein a chassis inlet and a chassis outlet are respectively provided on opposite sides of the chassis, the chassis has a receiving cavity, and both the chassis inlet and the chassis outlet are connected to the receiving cavity;

[0019] The aforementioned heat dissipation device is disposed within the accommodating cavity. The first air inlet corresponds to and communicates with the chassis inlet, the first air outlet corresponds to and communicates with the chassis outlet, and the bottom end of the air duct and the second air inlet are both connected to the accommodating cavity.

[0020] The equipment component is disposed within the accommodating cavity, and is located above the bottom end of the air guide pipe and below the air outlet cavity.

[0021] The heat dissipation device and nuclear power excitation simulator of this invention have the following advantages over the prior art:

[0022] (1) By placing the airflow guide above the air duct, outside cold air enters the intake chamber through the first air inlet, connects to the bottom of the air duct through the top of the air duct, and exits through the bottom of the air duct to the heat dissipation device for heat dissipation of the heat-generating components. After heat exchange, the cold air rises, enters the exhaust chamber through the second air inlet, and is then discharged to the outside environment through the first air outlet, thus achieving air circulation. The top air intake method can greatly reduce the dust and other contaminants carried in the cold air during intake, effectively avoiding filter clogging and ensuring heat dissipation efficiency;

[0023] (2) By connecting the top of the air duct to the bottom wall and ensuring that the top of the air duct is higher than the bottom wall, when cold air carrying water enters the air intake chamber, the water will not flow directly into the air duct due to the higher top of the air duct. At the same time, a drain outlet is opened on the bottom wall and connected to a water flow pipe. The water entering the air intake chamber condenses on the bottom wall and flows through the drain outlet to the water flow pipe and is discharged under the action of gravity. This effectively prevents water from entering the air duct, ensures that the airflow environment inside the air duct is not affected by water, avoids damage to the heating components, and improves the reliability of the device. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 is a perspective view of the heat dissipation device of this utility model;

[0026] Figure 2 is an exploded view of the heat dissipation device of this utility model;

[0027] Figure 3 is a schematic diagram of the heat dissipation device of this utility model;

[0028] Figure 4 is a perspective view of the nuclear power excitation simulator of this utility model;

[0029] Figure 5 is a schematic diagram of the structure of the nuclear power excitation simulator of this utility model.

[0030] Figure label:

[0031] 1. Air duct; 11. Top end; 12. Bottom end; 2. Airflow guide; 21. Cavity; 211. Air inlet; 2111. Bottom wall; 2112. Drain outlet; 212. Air outlet; 22. First air inlet; 23. First air outlet; 24. Baffle; 25. Second air inlet; 26. Water pipe; 3. Cooling fan; 4. Filter screen; 5. Branch pipe; 6. Chassis; 61. Receptacle; 7. Equipment component. Detailed Implementation

[0032] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0033] As shown in Figures 1 to 3, this utility model provides a heat dissipation device, which includes an air duct 1 and an airflow guide 2. The air duct 1 is vertically arranged and has a top end 11 and a bottom end 12. The airflow guide 2 is disposed at the top end 11 of the air duct 1. The airflow guide 2 has a first air inlet 22, a first air outlet 23 and a cavity 21. A partition 24 is disposed inside the cavity 21. The cavity 21 is divided into an air inlet cavity 211 and an air outlet cavity 212 by the partition 24. The first air inlet 22 is connected to the air inlet cavity 211 and the air inlet cavity 211 is connected to the air duct 1. The first air outlet 23 is connected to the air outlet cavity 212. A second air inlet 25 is opened at the bottom of the air outlet cavity 212 and is connected to the bottom end 12.

[0034] The heating element is located in a space connected to the bottom end 12 of the air duct 1 and the second air inlet 25 of the air inlet chamber 211. The air duct 1 is vertically arranged, and the airflow guide 2 is located at the top end 11 of the air duct 1, that is, the airflow guide 2 is located above the air duct 1. The first air inlet 22 of the airflow guide 2 connects the air inlet chamber 211 and the external environment. Cold air from the outside enters the air inlet chamber 211 through the first air inlet 22, connects to the bottom end 12 of the air duct 1 through the top end 11 of the air duct 1, and is discharged through the bottom end 12 of the air duct 1 to the heat dissipation device for cooling the heating element. After heat exchange, the cold air rises, enters the air outlet chamber 212 through the second air inlet 25, and is then discharged to the external environment through the first air outlet 23, thus realizing air circulation.

[0035] By utilizing the principle that cold air sinks and hot air rises, cold air is introduced from the top and then guided to flow out from the bottom. Through heat transfer methods such as conduction and convection, the heat from the heating components is absorbed and then discharged to the outside through the top, thus achieving heat dissipation.

[0036] Currently, most heat dissipation devices use a bottom-intake method for cold air and an upper-middle-exhaust method for hot air, utilizing air convection for good heat dissipation. However, dust accumulates on internal components, reducing heat dissipation and electrical performance, ultimately significantly shortening the device's lifespan. This device, on the other hand, uses a top-intake method, directing cold air to the bottom for exhaust. The hot air, after heat exchange, is exhausted through the top. This ensures effective heat dissipation and avoids the problem of bottom-intake devices drawing in dust, particles, or liquids from the ground, which can clog filters, reduce heat dissipation efficiency, and even cause equipment malfunctions.

[0037] To address this issue, some cooling devices employ multi-layered filters for dust prevention. However, this method significantly increases airflow resistance, making it difficult to meet the required ventilation volume for equipment cooling even with the addition of auxiliary fans.

[0038] As shown in Figures 1 to 3, in this embodiment, the airflow guide 2 is located above the air duct 1. The first air inlet 22 and the first air outlet 23 can be located at any position on the airflow guide 2 to ensure stable air intake and exhaust. Optionally, the first air inlet 22 and the first air outlet 23 can both be located at the top of the airflow guide 2, or both at the bottom of the airflow guide 2, or respectively on both sides of the airflow guide 2, etc.

[0039] The airflow guide 2's cavity 21 is divided into an inlet chamber 211 and an outlet chamber 212 by a partition 24. The partition 24 can be vertically positioned to separate the left and right sides of the cavity 21. Alternatively, the partition 24 can be horizontally positioned to separate the upper and lower sides of the cavity 21. Of course, the partition 24 can also be inclined, thus dividing its two sides into an inlet chamber 211 and an outlet chamber 212 respectively. In this embodiment, the partition 24 is vertically positioned, with the inlet chamber 211 on the right side and the outlet chamber 212 on the left side. The first air inlet and the first air outlet are located on opposite sides of the airflow guide 2. That is, the first air inlet is on the right side of the inlet chamber 211, and the first air outlet is on the left side of the outlet chamber 212.

[0040] In some embodiments, the air intake chamber 211 has a bottom wall 2111, and the top end 11 of the air duct 1 communicates with the bottom wall 2111. The air duct 1 is located below the airflow guide 2, and connecting the top end 11 of the air duct 1 to the bottom wall 2111 facilitates connection.

[0041] Optionally, the height of the top end 11 of the air duct 1 is higher than the height of the bottom wall 2111. When water is present in the external environment, such as in a humid environment or when there is a small amount of splashing water, water may enter the air intake chamber 211. Because the top end 11 of the air duct 1 is higher, the water will not flow directly into the air duct 1, ensuring that the airflow environment inside the air duct 1 is not affected by water.

[0042] In some embodiments, a drain outlet 2112 is provided on the bottom wall 2111, and a water flow pipe 26 is connected to the drain outlet 2112. The water flow pipe 26 is parallel to the axis of the air duct 1. Water entering the air intake chamber 211 will flow to the drain outlet 2112 under the action of gravity, and then be discharged from the device through the water flow pipe 26. This effectively prevents water from entering the air duct 1, effectively avoids damage caused by water passing through heating components, and improves the reliability of the device.

[0043] Alternatively, the axis of the water flow pipe 26 can be tilted downwards. This ensures that the water flowing into the water flow pipe 26 can be discharged under the action of gravity, while also reducing the height ratio of the water flow pipe 26 in the space, thus meeting different layout requirements.

[0044] As shown in Figures 1 to 3, in some embodiments, both the first air inlet 22 and the first air outlet 23 are equipped with cooling fans 3. The cooling fans 3 can accelerate the airflow, improve the heat dissipation efficiency, and allow cold air from the outside to be quickly introduced into the air inlet chamber 211, so that the hot air in the air outlet chamber 212 can be quickly discharged.

[0045] In some embodiments, both the first air inlet 22 and the first air outlet 23 are provided with filters 4. The filter 4 located at the first air inlet 22 is disposed at the air intake end of the cooling fan 3 located at the first air inlet 22; the filter 4 located at the first air outlet 23 is disposed at the air outlet end of the cooling fan 3 located at the first air outlet 23. By providing filters 4 at both the first air inlet 22 and the first air outlet 23, dust, impurities, etc., in the air can be filtered out when air enters and exits. This prevents a small amount of dust entering with the air from affecting the normal operation of heat-generating components, etc., due to airflow.

[0046] In some embodiments, at least one branch pipe 5 is connected to the air duct 1, the axis of the branch pipe 5 being connected at an angle to the axis of the air duct 1, and the branch pipe 5 having an air outlet connected to the second air inlet 25. The branch pipe 5 allows for the adaptive exhaust of cold air from the air duct 1, changing the direction of the cold air outlet to meet the needs of different usage scenarios. Simultaneously, the angled connection between the branch pipe 5 and the air duct 1 increases the diversity of airflow paths and directions, enabling better coverage of spaces of different shapes and sizes, and meeting diverse heat dissipation requirements.

[0047] For example, branch pipe 5 can be connected to the bottom end 12 of air duct 1, and the air outlet of branch pipe 5 can be set upwards. Alternatively, branch pipe 5 can be connected to the middle of air duct 1, with some of the cold air in air duct 1 being discharged through the air outlet of branch pipe 5, and the other part of the air being discharged through the bottom end 12 of air duct 1, thereby providing targeted heat dissipation for heat-generating components at different locations. Similarly, multiple branch pipes 5 can be provided, for example, each branch pipe 5 can be spaced apart along the axial direction of air duct 1, and the air outlet of each branch pipe 5 can correspond to a different heat-generating component.

[0048] Optionally, the air outlet direction can be flexibly adjusted. Without changing the branch pipe 5, the air outlet direction can be adjusted independently, further improving the adaptability of the device and meeting different layout and heat dissipation requirements in various application scenarios. The branch pipe 5 can be a flexible hose to allow for the flexible adjustment of the air outlet direction.

[0049] Of course, an air guide mechanism can also be installed at the air outlet of branch pipe 5 to adjust the air outlet direction. For example, the air guide mechanism may include an air guide plate and a rotating component, such as a rotary motor or a rotary cylinder, which drives the rotation of the air guide plate to adjust the air outlet direction of branch pipe 5. This allows for precise guidance of cool air to specific areas requiring heat dissipation, such as around certain heat-generating equipment components 7.

[0050] As shown in Figures 1 to 3, in summary, this application provides a heat dissipation device. A partition 24 divides the cavity 21 of the airflow guide 2 into an inlet chamber 211 and an outlet chamber 212. Outside cold air enters the inlet chamber 211 through the first inlet 22 and flows through the top 11 of the air duct 1 to the bottom 12 and is then discharged. The heating element is located in a space connected to the bottom 12 of the air duct 1 and the second inlet 25 of the outlet chamber 212. The cold air cools the heating element, and the heated air rises and enters the outlet chamber 212 through the second inlet 25. Under the action of the cooling fan 3, it is discharged to the outside through the first outlet 23, achieving air circulation. The top-inlet design significantly reduces dust and other contaminants carried in the incoming cold air, effectively preventing filter 4 blockage. The air duct 1 introduces cold air through the bottom of the device for cooling and heat dissipation, ensuring efficient heat dissipation. This device features excellent air cooling, effectively maintains internal cleanliness, has a simple structure, low cost, and is easy to manufacture. Furthermore, it is clean, controllable, moisture-proof, and highly efficient, significantly reducing cooling costs while improving heat dissipation performance, reliability, and lifespan.

[0051] As shown in Figures 1 to 5, this utility model also provides a nuclear power excitation simulator, including a housing, a heat dissipation device as described in the above embodiments, and equipment component 7, wherein equipment component 7 is the heat-generating component inside the housing of the nuclear power excitation simulator.

[0052] The chassis 6 has an inlet and an outlet on opposite sides, and a receiving cavity 61 connected to both the inlet and outlet. A heat dissipation device is located within the receiving cavity 61. The first air inlet 22 corresponds to and connects to the inlet, and the first air outlet 23 corresponds to and connects to the outlet. The bottom end 12 of the air duct 1 and the second air inlet 25 are both connected to the receiving cavity 61. A device component 7 is located within the receiving cavity 61, above the bottom end 12 of the air duct 1 and below the outlet cavity 212.

[0053] Cold air enters from the chassis inlet and, under the action of the cooling fan 3, enters the air duct 1 through the air intake chamber 211. The cold air sinks and is therefore discharged from the bottom end 12 of the air duct 1, entering the chassis. The cold air undergoes heat exchange inside the chassis, thereby dissipating heat from the equipment components 7. The hot air rises and enters the air outlet chamber 212 through the second air intake 25. Under the action of the cooling fan 3, the hot air in the air outlet chamber 212 is discharged from the chassis 6 through the first air outlet 23 and the chassis outlet.

[0054] Traditional nuclear power excitation simulators allow cold air to enter from the bottom and hot air to exit from the top. This bottom air intake can easily bring dust from the ground into the simulator and onto the components, leading to reduced heat dissipation and electrical performance, which in turn affects the simulator's performance, reliability, and lifespan.

[0055] The nuclear power excitation simulator in this application uses cold air to enter from the top of the chassis 6, and the hot air after heat exchange is also discharged from the top of the chassis 6. This can effectively prevent dust and other impurities in the air at the bottom from entering the interior of the chassis 6, which can ensure both heat dissipation and equipment performance.

[0056] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat dissipation device, characterized in that, include: A duct (1) is vertically arranged and has a top end (11) and a bottom end (12); and an airflow guide (2) is arranged at the top end (11) of the duct (1). The airflow guide (2) has a first air inlet (22), a first air outlet (23) and a cavity (21). A partition (24) is provided inside the cavity (21). The cavity (21) is divided into an air inlet cavity (211) and an air outlet cavity (212) by the partition (24). The first air inlet (22) is connected to the air inlet cavity (211). The air inlet cavity (211) is connected to the duct (1). The first air outlet (23) is connected to the air outlet cavity (212). A second air inlet (25) is opened at the bottom of the air outlet cavity (212) and is connected to the bottom end (12).

2. The heat dissipation device as described in claim 1, characterized in that: The air intake chamber (211) has a bottom wall (2111), and the top end (11) of the air duct (1) is connected to the bottom wall (2111).

3. The heat dissipation device as described in claim 2, characterized in that: The height of the top end (11) of the air duct (1) is higher than the height of the bottom wall (2111).

4. The heat dissipation device as described in claim 2, characterized in that: A drain outlet (2112) is provided on the bottom wall (2111), and a water pipe (26) is connected to the drain outlet (2112).

5. The heat dissipation device as described in claim 4, characterized in that: The axial direction of the water pipe (26) is parallel to the axial direction of the air guide pipe (1).

6. The heat dissipation device as described in claim 1, characterized in that: Both the first air inlet (22) and the first air outlet (23) are equipped with cooling fans (3).

7. The heat dissipation device as described in claim 6, characterized in that: Both the first air inlet (22) and the first air outlet (23) are provided with filters (4). The filter (4) located at the first air inlet (22) is located at the air inlet end of the cooling fan (3) located at the first air inlet (22); the filter (4) located at the first air outlet (23) is located at the air outlet end of the cooling fan (3) located at the first air outlet (23).

8. The heat dissipation device as described in claim 1, characterized in that: At least one branch pipe (5) is connected to the air duct (1), and the axial direction of the branch pipe (5) is connected at an angle to the axial direction of the air duct (1). The branch pipe (5) has an air outlet that is connected to the second air inlet (25).

9. The heat dissipation device as described in claim 8, characterized in that: The air outlet's airflow direction can be flexibly set.

10. A nuclear power plant excitation simulator, characterized in that: include: A chassis (6) has a chassis inlet and a chassis outlet on opposite sides, and the chassis (6) has a receiving cavity (61), and the chassis inlet and the chassis outlet are both connected to the receiving cavity (61); The heat dissipation device as described in any one of claims 1 to 9, wherein the heat dissipation device is disposed in the accommodating cavity (61), the first air inlet (22) corresponds to and communicates with the chassis inlet, the first air outlet (23) corresponds to and communicates with the chassis outlet, the bottom end (12) of the air duct (1) and the second air inlet (25) are both communicated with the accommodating cavity (61); and the equipment component (7) is disposed in the accommodating cavity (61), the equipment component (7) is located above the bottom end (12) of the air duct (1) and below the air outlet cavity (212).

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