Fluid buffer reversing structure and test device for measuring heat dissipating capacity of SFC machine room

Abstract

The utility model relates to the technical field of heat dissipation between frequency conversion equipment, and mainly discloses a fluid buffer reversing structure and a test device for measuring the heat dissipating capacity of an SFC machine room, the fluid buffer reversing structure comprises a pipe body, and the pipe body comprises a main pipe and a branch pipe fixed at the outlet of the main pipe in a sealing manner at an included angle; the reversing plate is movably arranged in a cavity at the junction of the main pipe and the branch pipe; wherein the reversing plate divides an inner cavity of the branch pipe to form a first cavity and a second cavity, and the first cavity and the second cavity alternately communicate with a fluid cavity of the pipe body; the fan assembly is fixed with the inlet of the pipe body; the temperature control assembly comprises a concentric-square-shaped pipe, a preheater and a refrigerator, the two ends of a branch pipe are communicated with an upstream pipeline of the concentric-square-shaped pipe, and the preheater and the refrigerator are fixed to the two parallel side pipe walls of the concentric-square-shaped pipe respectively; the machine room assembly comprises a model chamber and a heat source, the heat source is fixedly connected in the model chamber, and the downstream of the concentric-square-shaped pipe communicates with the model chamber; the problem that in an air supply system of a traditional test device, the air speed at the joint of branch pipes is unstable, and the measurement result is affected is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of heat dissipation in variable frequency equipment rooms, and in particular to a fluid buffer reversing structure and a test device for measuring the heat dissipation of SFC computer rooms. Background Technology

[0002] In underground spaces such as pumped storage power plant buildings, some equipment, such as SFC (Self-Powered Fuel Cell) equipment, operates intermittently. Accurately determining the heat generated during intermittent operation is crucial for the rational design of heat dissipation devices and optimization of the thermal environment. However, due to structural and safety factors, it is impossible to directly conduct scaled-down studies on the heat generated by the electromechanical equipment when it is powered on during scaled-down model tests.

[0003] Currently, most commonly used heat dissipation devices for simulating equipment cooling are continuous cooling systems, which does not match the intermittent operation of SFC (Self-Fueling Fusion Control) equipment in actual power plants. Furthermore, the design flaws at the branch pipe connections in traditional test equipment air supply systems cause airflow turbulence to easily form at these points. Actual measurements show that the wind speed fluctuation at the branch pipe connections can reach 30% to 50% of the normal supply air speed, severely interfering with the accurate measurement of equipment cooling and ventilation heat exchange effects. This instability in wind speed leads to significant deviations in calculating equipment heat dissipation, further resulting in wasted or insufficient cooling devices in actual engineering projects. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is that in the traditional test device air supply system, the wind speed at the branch pipe connection is unstable, which affects the measurement results.

[0005] The above-mentioned technical problems are solved by the following technical solution: This utility model proposes a fluid buffer reversing structure, characterized in that: it includes a pipe body, the pipe body includes a main pipe and a branch pipe that is sealed and fixed at the outlet of the main pipe at an angle; a reversing plate is movably disposed in the cavity at the junction of the main pipe and the branch pipe; wherein, the reversing plate divides the internal cavity of the branch pipe to form a first cavity and a second cavity, the first cavity and the second cavity alternately communicating with the fluid cavity of the pipe body.

[0006] In a preferred embodiment of the fluid buffer reversing structure of this utility model: the branch pipe is fixedly connected to the main pipe at a 90° angle, the branch pipe includes a first pipe and a second pipe, the first cavity is opened in the first pipe, and the second cavity is opened in the second pipe; wherein, the discharge ends of the first pipe and the second pipe face opposite directions.

[0007] In a preferred embodiment of the fluid buffer reversing structure of this utility model: the reversing plate includes a sealing plate and a flow stabilizing plate, the flow stabilizing plate being movably fixed on one side of the sealing plate; the sealing plate has rotating holes on opposite side walls, the rotating holes being rotatably connected to a rotating shaft fixedly inserted into the inner wall of the cavity at the junction of the main pipe and the branch pipe.

[0008] In a preferred embodiment of the fluid buffer reversing structure of this utility model: the sealing plate includes symmetrically arranged crossbeams and a base plate fixed between the crossbeams, and the base plate has a lower groove on the side near the crossbeams, and the flow stabilizing plate can be placed in the lower groove; wherein, the lower groove faces the fluid cavity of the main pipe.

[0009] In a preferred embodiment of the fluid buffer reversing structure of this utility model: hinge blocks are symmetrically fixedly connected to the middle of the side of the base plate away from the lower groove, and a pusher is hinged between the hinge blocks; the pusher includes a first docking block and a sliding column fixedly connected to one side thereon, the first docking block is rotatably connected between the hinge blocks, a second docking block is slidably sleeved on the outside of the sliding column, a first spring is sleeved on the outside of the sliding column, and the two ends of the first spring are fixedly connected to the first docking block and the second docking block respectively.

[0010] In a preferred embodiment of the fluid buffer reversing structure of this utility model: a receiving box is fixedly connected to the outer wall of the branch pipe on the side away from the main pipe, the internal space of the receiving box is connected to the branch pipe, and the second docking block is rotatably connected in the receiving box; a motor is fixedly connected to the outer wall of the receiving box and the two sides near the rotating shaft, and the output shaft of the motor is fixedly connected to the second docking block.

[0011] In a preferred embodiment of the fluid buffer reversing structure of this utility model: symmetrical spring-loaded holes are provided on the side walls at both ends of the crossbeam, and a second spring is fixedly connected to the inner wall of the spring-loaded hole near the lower groove; horizontal insert plates are fixedly connected to the opposite two sides of the flow stabilizer plate, and the horizontal insert plates are slidably inserted into the spring-loaded holes and fixedly connected to the second spring; symmetrical dust collection grooves are provided on the inner wall of one side of the crossbeam.

[0012] In a preferred embodiment of the fluid buffer reversing structure of this utility model: a plurality of dust-penetrating holes are evenly provided on the flow stabilizing plate; a plurality of guide plates are arranged and fixed on the side of the flow stabilizing plate away from the lower groove, and the guide plates face the first cavity and the second cavity; a dust-falling hole is provided at the root of the connection between the guide plate and the flow stabilizing plate; a dust-sealing plate is also vertically fixedly connected to the side of the flow stabilizing plate near the dust collection groove; the dust-sealing plate is parallel to the guide plate; and a dust-pushing plate is also fixedly connected to the edge of the flow stabilizing plate on this side; the dust-pushing plate can be slidably inserted into the dust collection groove.

[0013] The above-mentioned technical problems are also solved by the following technical solution: a test device for measuring the heat dissipation of an SFC computer room, which includes the above-mentioned fluid buffer reversing structure, and further includes: a fan assembly, the fan assembly being fixed to the pipe inlet; a temperature control assembly, including a loop pipe, a preheater and a cooler, the two ends of the branch pipe being connected to the upstream pipe of the loop pipe, the preheater and the cooler being fixed to the parallel two-sided pipe walls of the loop pipe respectively; and a computer room assembly, including a model chamber and a heat source, the heat source being fixedly connected to the model chamber, and the downstream of the loop pipe being connected to the model chamber.

[0014] In a preferred embodiment of the test device for measuring the heat dissipation of an SFC computer room according to this utility model: a temperature sensor and a wind speed measuring instrument are fixedly installed in the cavity located downstream of the preheater and the cooler inside the U-shaped tube; a connecting pipe is fixedly connected to the tube wall on the side of the U-shaped tube away from the tube body, and the other end of the connecting pipe is connected to the model chamber; the reversing plate is fixedly connected to the inner cavity at the junction of the U-shaped tube and the connecting pipe; an exhaust pipe is fixedly connected to the model chamber.

[0015] The beneficial effects of this utility model are as follows:

[0016] The main pipe and branch pipes are fixed perpendicularly to each other to form a "T" shaped tee pipe, which realizes the diversion of airflow. Through the alternating blocking of the reversing plate, combined with the guidance of the inclined surface of the reversing plate, the impact of airflow on the pipe wall can be reduced, and the intensity of airflow turbulence can be reduced.

[0017] Furthermore, the airflow after being sorted by the buffer reversing structure is temperature-controlled by the temperature control component, enabling the delivery of airflow at different temperatures to meet the needs of air supply tests under different conditions. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments of this utility model will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this utility model and are not intended to limit the scope of this utility model. Wherein:

[0019] Figure 1 A schematic diagram of the overall structure of the fluid buffer reversing structure is shown;

[0020] Figure 2 A schematic diagram of the tube structure of the fluid buffer reversing structure is shown;

[0021] Figure 3 A schematic diagram of the commutator plate structure of the fluid buffer commutation structure is shown;

[0022] Figure 4 A schematic diagram of the sealing plate structure of the fluid buffer reversing structure is shown;

[0023] Figure 5A schematic diagram of the pusher structure of the fluid buffer reversing structure is shown;

[0024] Figure 6 A schematic diagram of the flow stabilizer structure of the fluid buffer reversing structure is shown;

[0025] Figure 7 A schematic diagram of the commutator plate operation of the fluid buffer commutation structure is shown;

[0026] Figure 8 A schematic diagram of the overall structure of the test device for measuring the heat dissipation of the SFC computer room is shown.

[0027] Figure 9 The diagram shows the internal airflow of the test apparatus used to measure the heat dissipation of the SFC computer room. Detailed Implementation

[0028] To enable those skilled in the art to better understand this utility model, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0029] The terminology used in this invention refers to those general terms currently widely used in the art in consideration of the functionality of this invention; however, these terms may vary according to the intent, precedent, or new technology of those skilled in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of this invention. Therefore, the terminology used in this specification should not be construed as simple names, but rather based on the meaning of the terms and the overall description of this invention.

[0030] Reference Figures 1-9 This embodiment provides a fluid buffer reversing structure, which includes a pipe body 100, the pipe body 100 including a main pipe 101 and a branch pipe 102 that is fixed at the outlet of the main pipe 101 at an angle.

[0031] The fluid buffer reversing structure is an experimental model, which is small in size and can be placed on a laboratory test bench. If it is to be applied to an actual project, it can be scaled up proportionally.

[0032] In this model, the pipe body 100 is made of stainless steel or plastic. The main pipe 101 and the branch pipe 102 are combined to form a "T" shaped tee pipe. The main pipe 101 is the air supply pipe, and the branch pipe 102 is the diversion pipe.

[0033] The reversing plate 200 is movably installed in the cavity at the junction of the main pipe 101 and the branch pipe 102.

[0034] The reversing plate 200 can act as a pipe wall to block part of the opening at the connection between the main pipe 101 and the branch pipe 102, and the blocking position can be switched to realize the reversal of airflow.

[0035] The reversing plate 200 divides the internal chambers of the branch pipe 102 to form a first chamber A and a second chamber B, which are alternately connected to the fluid chamber C of the pipe body 100.

[0036] Furthermore, the airflow alternately enters the first cavity A and the second cavity B from the fluid cavity C. When it wants to enter the first cavity A, the reversing plate 200 tilts to block the opening of the second cavity B, connecting the fluid cavity C with the first cavity A. Conversely, when the airflow wants to enter the second cavity B, the reversing plate 200 tilts to block the opening of the first cavity A, connecting the fluid cavity C with the second cavity B.

[0037] As an optional embodiment, the branch pipe 102 is fixedly connected to the main pipe 101 at a 90° angle. The branch pipe 102 includes a first pipe 102a and a second pipe 102b. A first cavity A is opened in the first pipe 102a and a second cavity B is opened in the second pipe 102b.

[0038] The discharge ends of the first pipe 102a and the second pipe 102b face opposite directions, and the first pipe 102a and the second pipe 102b are the transverse ends of the "T"-shaped tee pipes.

[0039] The commutator 200 includes a sealing plate 201 and a flow stabilizer 202, with the flow stabilizer 202 movably fixed to one side of the sealing plate 201.

[0040] The sealing plate 201 has rotating holes 201a on its two side walls. The rotating holes 201a are rotatably connected to the rotating shaft 101a fixedly inserted into the inner wall of the cavity at the junction of the main pipe 101 and the branch pipe 102. The reversing plate 200 as a whole can rotate along the rotating shaft 101a. In this embodiment, preferably, the plane where the reversing plate 200 is located makes an angle of 135° with the plane where the airflow is located in the fluid cavity C.

[0041] The sealing plate 201 includes symmetrically arranged crossbeams 201b and a base plate 201c fixed between the crossbeams 201b. The base plate 201c has a lower groove 201c-1 on the side near the crossbeams 201b, and the flow stabilizer 202 can be placed in the lower groove 201c-1.

[0042] The lower groove 201c-1 faces the fluid cavity C of the main pipe 101.

[0043] During use, the sealing plate 201 with the lower groove 201c-1 on one side is always tilted towards the fluid cavity C.

[0044] A hinge block 201c-2 is symmetrically fixedly connected to the middle of the side of the base plate 201c away from the lower groove 201c-1, and a pusher 203 is hinged between the hinge blocks 201c-2.

[0045] The pusher 203 includes a first docking block 203a and a sliding column 203b fixedly connected to one side thereof. The first docking block 203a is rotatably connected between the hinge blocks 201c-2. The second docking block 203c is slidably sleeved on the outside of the sliding column 203b. A first spring T1 is sleeved on the outside of the sliding column 203b. The two ends of the first spring T1 are fixedly connected to the first docking block 203a and the second docking block 203c, respectively.

[0046] A receiving box 102c is fixedly connected to the outer wall of the branch pipe 102 on the side away from the main pipe 101. The internal space of the receiving box 102c is connected to the branch pipe 102, and the second docking block 203c is rotatably connected inside the receiving box 102c.

[0047] The receiving box 102c is also fixedly connected to the outer wall on both sides near the rotating shaft 101a, and the output shaft of the motor 102c-1 is fixedly connected to the second docking block 203c.

[0048] Reference Figure 7 During use, the motor 102c-1 drives the second docking block 203c to rotate, and the sliding column 203b is subjected to the lateral thrust of the second docking block 203c, causing it to tilt and swing. During this process, the first docking block 203a fixed at the end of the sliding column 203b will push the hinge block 201c-2, which in turn drives the reversing plate 200 to rotate around the rotating shaft 101a.

[0049] Specifically, during the swinging process, the sliding column 203b will simultaneously insert into the second docking block 203c, and the first docking block 203a will compress the first spring T1, causing it to contract. When the reversing plate 200 deflects to the other side, the first spring T1 releases pressure, pushing the first docking block 203a. The first docking block 203a then drives the sliding column 203b to be pulled out of the second docking block 203c.

[0050] It should be noted that after the reversal, the two ends of the sealing plate 201 are sealed and abutted against the inner wall of the branch pipe 102, and the abutting state is maintained by the thrust of the first spring T1.

[0051] The two ends of the crossbeam 201b are symmetrically provided with spring holes 201b-1, and a second spring T2 is fixedly connected to the inner wall of the spring hole 201b-1 near the lower groove 201c-1.

[0052] The two opposite edges of the flow stabilizer plate 202 are fixedly connected with horizontal insert plates 202a. The horizontal insert plates 202a are slidably inserted into the spring return holes 201b-1 and fixedly connected to the second spring T2.

[0053] During use, the second spring T2 pushes the flow stabilizer plate 202, making the outer side of the flow stabilizer plate 202 flush with the groove opening of the lower recess 201c-1.

[0054] Dust collection troughs 201b-2 are symmetrically provided on the inner wall of one side of the crossbeam 201b.

[0055] The flow stabilizer 202 has several sets of dust-penetrating holes 202c evenly opened on it. Several sets of guide plates 202b are arranged and fixed on the side of the flow stabilizer 202 away from the lower groove 201c-1. The guide plates 202b face the first cavity A and the second cavity B.

[0056] A dust collection hole 202b-1 is provided at the root of the connection between the flow guide plate 202b and the flow stabilizer plate 202. A dust sealing plate 202b-2 is also vertically fixedly connected to the side of the flow stabilizer plate 202 near the dust collection trough 201b-2. The dust sealing plate 202b-2 is parallel to the flow guide plate 202b, and a dust pushing plate 202b-3 is also symmetrically fixedly connected to the edge of the flow stabilizer plate 202 on this side. The dust pushing plate 202b-3 can be slidably inserted into the dust collection trough 201b-2.

[0057] During use, the airflow impacts the surface of the flow stabilizer plate 202. Dust carried by the natural wind will pass through the dust penetration hole 202c and enter the lower groove 201c-1, impacting the bottom of the lower groove 201c-1. After being restricted by the groove walls on both sides of the lower groove 201c-1, it falls downward into the dust collection groove 201b-2.

[0058] Furthermore, not all the natural airflow carrying dust will enter the lower groove 201c-1; some will still hit the outer wall of the flow stabilizer 202. At this time, the internal dust will slide down the dust collection hole 202b-1 into the bottom dust collection groove 201b-2.

[0059] During this process, the natural airflow is guided by the guide plate 202b and gradually flows smoothly into the first cavity A and the second cavity B. The dust push plate 202b-3 and the dust sealing plate 202b-2 can ensure that the dust in the dust collection tank 201b-2 will not leak out. The purified airflow can ensure the cleanliness of the downstream devices.

[0060] In conjunction with the above-mentioned fluid buffer reversing structure, this utility model also provides a test device for measuring the heat dissipation of an SFC computer room, which includes the above-mentioned fluid buffer reversing structure and also includes a fan assembly 300, which is fixed to the inlet of the pipe body 100.

[0061] Among them, the fan assembly 300 is a centrifugal variable frequency fan, which is connected to a first frequency converter to control the air volume and adjust the air delivery speed. The fan assembly 300 sends the outside natural air into the fluid cavity C.

[0062] The temperature control component 400 includes a loop pipe 401, a preheater 402 and a cooler 403. The two ends of the branch pipe 102 are connected to the upstream pipe of the loop pipe 401. The preheater 402 and the cooler 403 are respectively fixed on the parallel two-sided pipe walls of the loop pipe 401.

[0063] Furthermore, both the preheater 402 and the cooler 403 are miniature models, responsible for heating or cooling the natural air respectively, and the air supply temperature can be switched according to the ambient temperature to ensure stable test conditions.

[0064] The computer room component 500 includes a model chamber 501 and a heat source 502. The heat source 502 is fixedly connected inside the model chamber 501, and the downstream of the U-shaped pipe 401 is connected to the model chamber 501.

[0065] Among them, model room 501 is made to scale down the actual size. The inner wall is a concrete lining layer to simulate a real wall. The middle polyurethane insulation layer reduces heat loss, and the outer layer is a wooden ecological board to fix the structure.

[0066] The heat source 502 is strictly scaled down to the actual equipment in terms of location and size. The voltage is controlled by a voltage regulator. Based on the Archimedes model law of heat, the heat generation during intermittent operation is strictly simulated.

[0067] A temperature sensor 401a and an anemometer 401b are fixed in the cavity located downstream of the preheater 402 and the cooler 403 inside the U-shaped tube 401.

[0068] A connecting pipe 401c is fixedly connected to the pipe wall on the side of the U-shaped pipe 401 away from the pipe body 100. The other end of the connecting pipe 401c is connected to the model chamber 501. The reversing plate 200 is fixedly connected to the inner cavity at the junction of the U-shaped pipe 401 and the connecting pipe 401c. An exhaust pipe 501a is fixedly connected to the model chamber 501.

[0069] Furthermore, a total of six sets of regulating valves are installed in the branch pipe 102 downstream of the reversing plate 200, the loop pipe 401 downstream of the preheater 402 and the cooler 403, the bypass pipe connected above the connecting pipe 401c, and the exhaust pipe 501a. These valves are used to control the air volume distribution of each branch pipe and to achieve airflow balance in conjunction with the bypass pipe.

[0070] Furthermore, a honeycomb baffle can be installed inside the connecting pipe 401c to further stabilize the airflow, and an axial flow variable frequency fan is connected to the exhaust pipe 501a to ensure stable airflow circulation inside the model chamber 501.

[0071] Reference Figure 9 The reversing plate 200 can be optionally installed in the inner cavity at the junction of the loop tube 401 and the connecting tube 401c to further guide the airflow that is rotating in the loop tube 401. Together with the honeycomb guide plate installed in the connecting tube 401c, it can fully ensure that the airflow in the connecting tube 401c enters the model chamber 501 smoothly.

[0072] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of this utility model.

Claims

1. A fluid buffer reversing structure, characterized in that: include, Pipe body (100), the pipe body (100) includes a main pipe (101) and a branch pipe (102) fixed at the outlet of the main pipe (101) at an angle. The reversing plate (200) is movably installed in the cavity at the junction of the main pipe (101) and the branch pipe (102); The reversing plate (200) divides the internal chambers of the branch pipe (102) to form a first chamber (A) and a second chamber (B), which are alternately connected to the fluid chamber (C) of the pipe body (100).

2. The fluid buffer reversing structure according to claim 1, characterized in that: The branch pipe (102) is fixedly connected to the main pipe (101) at a 90° angle. The branch pipe (102) includes a first pipe (102a) and a second pipe (102b). The first cavity (A) is opened in the first pipe (102a), and the second cavity (B) is opened in the second pipe (102b). The discharge ends of the first tube (102a) and the second tube (102b) face opposite directions.

3. The fluid buffer reversing structure according to claim 1 or 2, characterized in that: The commutator plate (200) includes a sealing plate (201) and a flow stabilizer plate (202), wherein the flow stabilizer plate (202) is movably fixed to one side of the sealing plate (201); The sealing plate (201) has rotating holes (201a) on its two opposite side walls. The rotating holes (201a) are rotatably connected to the rotating shaft (101a) that is fixedly inserted into the inner wall of the cavity at the junction of the main pipe (101) and the branch pipe (102).

4. The fluid buffer reversing structure according to claim 3, characterized in that: The sealing plate (201) includes symmetrically arranged crossbeams (201b) and a base plate (201c) fixed between the crossbeams (201b). The base plate (201c) has a lower groove (201c-1) on the side near the crossbeams (201b). The flow stabilizing plate (202) can be placed in the lower groove (201c-1). The lower groove (201c-1) faces the fluid cavity (C) of the main tube (101).

5. The fluid buffer reversing structure according to claim 4, characterized in that: A hinge block (201c-2) is symmetrically fixedly connected to the middle of the side of the base plate (201c) away from the lower groove (201c-1), and a pusher (203) is hinged between the hinge blocks (201c-2). The pusher (203) includes a first docking block (203a) and a sliding column (203b) fixedly connected to one side thereof. The first docking block (203a) is rotatably connected between the hinge blocks (201c-2). The sliding column (203b) is slidably sleeved with a second docking block (203c). The sliding column (203b) is sleeved with a first spring (T1). The two ends of the first spring (T1) are fixedly connected to the first docking block (203a) and the second docking block (203c) respectively.

6. The fluid buffer reversing structure according to claim 5, characterized in that: A receiving box (102c) is fixedly connected to the outer wall of the branch pipe (102) away from the main pipe (101). The internal space of the receiving box (102c) is connected to the branch pipe (102), and the second connecting block (203c) is rotatably connected inside the receiving box (102c). The receiving box (102c) is also fixedly connected to the outer wall on both sides near the rotating shaft (101a) by a motor (102c-1), and the output shaft of the motor (102c-1) is fixedly connected to the second docking block (203c).

7. The fluid buffer reversing structure according to any one of claims 4 to 6, characterized in that: The crossbeam (201b) has symmetrically formed spring holes (201b-1) on both sides of its sidewalls. A second spring (T2) is fixedly connected to the inner wall of the spring hole (201b-1) near the lower groove (201c-1). The flow stabilizer (202) has a horizontal insert plate (202a) fixedly connected to its opposite two sides. The horizontal insert plate (202a) is slidably inserted into the spring hole (201b-1) and fixedly connected to the second spring (T2). Dust collection troughs (201b-2) are symmetrically provided on the inner wall of the crossbeam (201b) on one side.

8. The fluid buffer reversing structure according to claim 7, characterized in that: The flow stabilizer plate (202) is evenly provided with a number of dust penetration holes (202c). A number of flow guide plates (202b) are arranged and fixed on the side of the flow stabilizer plate (202) away from the lower groove (201c-1). The flow guide plates (202b) face the first cavity (A) and the second cavity (B). The flow guide plate (202b) and the flow stabilizer plate (202) are connected at the root of the flow guide plate (202) and the flow stabilizer plate (202) are provided with a dust collection hole (202b-1). A dust sealing plate (202b-2) is also vertically fixedly connected to the side of the flow stabilizer plate (201b-2) near the dust collection trough (201b-2). The dust sealing plate (202b-2) is parallel to the flow guide plate (202b), and a dust pushing plate (202b-3) is also fixedly connected to the edge of the flow stabilizer plate (202) on this side. The dust pushing plate (202b-3) can be slidably inserted into the dust collection trough (201b-2).

9. A test device for measuring the heat dissipation of an SFC computer room, characterized in that: Including the fluid buffer reversing structure as described in any one of claims 1 to 8, and further comprising: A fan assembly (300) is fixed to the inlet of the pipe body (100); The temperature control assembly (400) includes a loop pipe (401), a preheater (402) and a cooler (403). The two ends of the branch pipe (102) are connected to the upstream pipe of the loop pipe (401). The preheater (402) and the cooler (403) are respectively fixed on the parallel two-sided pipe walls of the loop pipe (401). The computer room component (500) includes a model chamber (501) and a heat source (502), wherein the heat source (502) is fixedly connected inside the model chamber (501), and the downstream of the U-shaped pipe (401) is connected to the model chamber (501).

10. The test apparatus for measuring the heat dissipation of an SFC computer room according to claim 9, characterized in that: A temperature sensor (401a) and an anemometer (401b) are fixed in the cavity located downstream of the preheater (402) and the cooler (403) inside the loop tube (401). A connecting pipe (401c) is fixedly connected to the wall of the spiral tube (401) on the side away from the tube body (100). The other end of the connecting pipe (401c) is connected to the model chamber (501). The reversing plate (200) is fixedly connected to the inner cavity at the junction of the spiral tube (401) and the connecting pipe (401c). An exhaust pipe (501a) is fixedly connected to the model chamber (501).

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