CN113311473A - Detector air cooling testing arrangement - Google Patents

Abstract

The invention discloses a detector gas cooling test device which is characterized by comprising a gas cooling device (1), a flow controller (2), an adjustable flow guiding device (3), a cooling cavity (4), an adjustable turbulence device (6), a plurality of temperature measuring probes (8), an upstream heat insulation support (51) and a downstream heat insulation support (52), wherein the upstream heat insulation support and the downstream heat insulation support are positioned in the cooling cavity (4) and used for supporting a detector; one end of the gas cooling device (1) is used for being connected with a gas source, the other end of the gas cooling device is connected with the inlet end of the cooling cavity (4) through the flow controller (2) and the adjustable flow guide device (3) in sequence, the adjustable turbulence device (6) is arranged on the inner wall of the cooling cavity between the upstream heat insulation support (51) and the downstream heat insulation support (52), and each temperature measuring probe is used for measuring the temperature of each set position of the detector. The invention can measure the cooling effect of the detector under different environments so as to obtain a better detector air cooling scheme through research.

Description

Detector air cooling testing arrangement

Technical Field

The invention relates to a cooling test device, in particular to a cooling measurement device for a gas cooling detector, and belongs to the technical field of air cooling tests.

Background

The silicon pixel detector technology with high spatial resolution plays an increasingly important role in the fields of material science, biochemistry, aerospace, high-energy physics and the like. Silicon pixel detectors can be used for their excellent detection and position resolution propertiesThe method is applied to high-precision imaging, particle track reconstruction of next-generation high-energy physical large devices and the like. Especially, in the particle track reconstruction of a high-energy physical large device, such as a high-energy annular positive and negative electronic collider, the primary planning scheme of the vertex detector adopts a plurality of detector modules which are mutually overlapped and arranged into a plurality of barreled structures with different diameters, and the detector modules jointly act to realize track measurement so as to achieve the purpose of vertex detection. Each detector module consists of a supporting structure, a circuit board and a detector chip, and the detector chip on the detector module can be installed on a single side or on two sides relative to the supporting structure. The heating power for detecting the normal working state of the chip is generally 100-200mW/cm²In between, the future is expected to be controllable at 50mW/cm²In addition, compared with liquid cooling, the cooling of the detector module by adopting gas cooling has the most obvious advantage of low substance quality, reduces the multiple scattering effect caused by substances, can keep high detection precision, and is more suitable for the requirements of the next generation of colliders. Therefore, future cooling approaches for apex detectors tend to employ gas cooling schemes. The apex detector module is generally in a strip-like configuration, although the total detection area is not large, but the apex detector module is narrow in width and relatively long in length, most notably because of structural limitations of the detector, and the cooling airflow passing through the detector can generally only flow from one side of the detector to the other side, regardless of the type of air passage (e.g., generally straight air passage or spiral air passage). This will cause the detector module to have a good cooling effect on the detecting chip at the upstream portion near the cooling gas inlet, and a poor cooling effect on the detecting chip at the downstream portion near the cooling gas outlet due to the heat effect of the upstream gas flow, i.e. the detecting chip generates a temperature gradient along the cooling gas flow direction. The detection precision of the silicon pixel detector is sensitive to temperature, the leakage current is increased along with the rise of the temperature, the noise of the detector is correspondingly increased, and the detection precision is reduced; if the temperature is too high, damage to the detector may result. The cooling control of the detector module is aimed at controlling the chip temperature at each location to be cooled to a suitable working temperature, and at the other hand, the temperature gradient of the chip along the longitudinal direction of the detector module is reduced as much as possible so as to reduce the temperature gradientThe detection precision difference caused by the temperature gradient of the same region.

For high resolution pixel detectors like the vertex detector, cooling testing of the air-cooled system of the detector is a very critical task. According to the research on the cooling effect of the detector under different flow and airflow states, an optimal cooling scheme can be evaluated and formulated; meanwhile, the self structural design and the overall supporting structure design of the detector can be guided according to the test result. No device or similar device is currently available on the market for cooling testing such air cooled probes.

Disclosure of Invention

The invention aims to provide a detector air cooling test device for air cooling test of a silicon (vertex) track detector module. The air cooling test device can provide cooling test environments in different air flow states for a single detector (a module of an integral detector), measure the cooling effect of the detector in different environments, obtain a better air cooling scheme of the detector through research, summarize reasonable parameters comprising air flow adjusting devices of all parts, guide the detector to realize good cooling effect under air cooling, control uniform temperature or smaller gradient along the air flow direction, and ensure detection accuracy. The test result of the invention can also test and guide the structural design of the detector module and the whole detector.

The single detector gas cooling test device is a test device with functions of pre-cooling upstream gas, adjusting gas flow, inlet diversion, turbulence in an air passage, air outlet opening and the like, and can measure the temperature of the detector in a non-contact or contact mode or a mode of combining the two modes. The detector is suitable for forced air cooling, especially for the case that the longitudinal length is long, the transverse dimension is relatively small, and the temperature and gradient of the detector under air cooling are strictly controlled. The detection module can be provided with detection chips on one side or two sides of the supporting structure, gas environments with different flow rates and flow states are obtained through the related airflow adjusting function of the device, the cooling effect under different states is measured by monitoring the surface temperature of the detector, the optimized air cooling configuration scheme of the set detector can be summarized and judged, and the purposes of good cooling effect and small temperature rise gradient are achieved.

The technical scheme of the invention is as follows:

an amplitude measuring device of an ultra-light beam is characterized by comprising an upstream gas cooling device 1, a flow controller 2, an adjustable flow guide device 3, a cooling cavity 4, a detector 5, an upstream heat insulation support 51, a downstream heat insulation support 52, an adjustable flow disturbing device 6, an outlet opening adjusting device 7 and a temperature measuring probe 8 (which can be a non-contact type temperature measuring instrument 81 such as an infrared temperature measuring instrument or a contact type probe 82 such as a thermocouple sensor arranged on the detector 5). The signal line and the power line of the detector and the line of the contact temperature measuring sensor are led out along the downstream outlet.

The device is provided with monitoring probes for the temperature of inlet and outlet gases, on one hand, the actual temperature of the cooling gas can be mastered, and on the other hand, the parameters are used for later-stage system calculation composition. Implementations may employ mounting thermocouple sensors in the inlet region of the cooling chamber and in the outlet region of the cooling chamber in suspension to measure the gas temperature.

The gas from the gas source is first cooled by the gas cooling device 1, which is composed of a cooling cavity, a cooling medium (such as dry ice or ice-water mixture) and a gas pipe arranged along the zigzag direction for increasing the heat exchange area, then the flow is adjusted by the flow controller 2, and then enters the adjustable flow guiding device 3 and then enters the cooling cavity channel.

Further, the adjustable flow guiding device 3 is composed of an air inlet chamber 31 and a plurality of flow guiding inserts 32.

The adjustable flow guide device 3 adjusts the flow guide effect by adjusting the number, the insertion depth, the insertion direction and the like of the flow guide plug-in units, so that the gas can uniformly flow (can be adjusted as required if transversely differentiated) into the cooling cavity after passing through the gas inlet cavity as much as possible.

The cooling cavity 4 is composed of a cooling cavity upper cover 41 and a cooling cavity bottom plate 42, a heat insulation support is arranged in the cavity, the detector 5 is installed in a cooling cavity channel through heat insulation supports 51 and 52 at two ends, a heat insulation support or a non-heat insulation support is adopted, and a heat insulation gasket is added between the heat insulation support and the detector 5 for heat insulation, so that the influence of heat conduction on the measurement of an air cooling effect is avoided.

The further probe 5 is oriented in the cooling chamber longitudinally along the axis of the cooling chamber and transversely horizontally or vertically.

Furthermore, the size of the cross section of the cooling cavity channel has priority, and the cross section of the air inlet cavity is matched with the inner surface of the cooling cavity channel shell at the butt joint of the air inlet cavity and the cooling cavity, so that the transition is smooth.

The gas enters the cooling cavity channel through the adjustable flow guiding device 3, the section size of the gas flow channel near the detector 5 is changed through the adjustment of the adjustable flow disturbing device 6 in the cooling cavity 4, and the gas flow direction and the gas speed are changed.

Furthermore, the adjustable turbulence device 6 can be composed of a plurality of turbulence blocks with different specifications, the turbulence blocks form a convex structure from the wall of the cooling cavity to the direction of the detector, the heights of the turbulence blocks with different specifications are different, and the heights of the protrusions are adjusted through the turbulence blocks with different heights to realize a turbulence effect; the mounting positions of the turbulence blocks can be arranged on the inner wall of the cooling cavity in a single-point or multi-point mode according to requirements along the longitudinal direction of the detector. The adjustable turbulence device 6 can also be an inserted turbulence block, is inserted into the cooling cavity 4 from the outer side to form a bulge facing the detector 5, and realizes turbulence adjustment through the insertion depth, namely the height of the bulge; the mounting position of the plug-in turbulence block can be arranged on the inner wall of the cooling cavity 4 in a single-point or multi-point mode according to requirements along the longitudinal direction of the detector. The air flow is realized by arranging and adjusting the air flow disturbing block at a position near the detector to adjust the air flow gap near the detector 5. According to the Bernoulli equation, the adjustment of the ventilation gap at the periphery of the detector can cause the change of the air flow speed and the direction, the gradually changed ventilation gap is generated by the gradually changed spoiler height, and then the gradually changed air flow speed is obtained, and the gradually changed cooling effect is generated. The height of the turbulence blocks arranged at multiple points along the airflow direction is higher and higher, namely the ventilation gap is gradually reduced, and the airflow speed is gradually increased so as to reduce the temperature gradient. The width of the turbulence block is as close as possible to the width of the cross section of the cooling cavity, and the shunting of airflow in the lateral clearance is reduced. The height direction of the turbulence block is vertical to the plane direction of the detector.

Furthermore, the adjustable spoiler 6 can be realized by installing a spoiler 61 in the cooling cavity 4, wherein the spoiler 61 can be a straight plate or a plate with a curved arc. The spoiler 61 is supported and fixed at both ends thereof on two brackets 611 which are insertedly mounted on the wall of the cooling chamber 4. Can one or two in two supports can both carry out height control, the advantage is the non-interference regulation that realizes outside the chamber, avoids taking apart the condition that the cooling chamber could be adjusted. One end of the spoiler is hinged with the bracket in a supporting mode, and the other end of the spoiler is hinged with the bracket in a supporting mode of sliding, namely structurally, the spoiler is hinged with the bracket at one side and is in butt joint with the bracket through a shaft and a hole; the spoiler and the bracket are hinged and are in sliding support on one side, and a shaft is in butt joint with the long slotted hole between the spoiler and the bracket. The support structure of the spoiler has the advantage of having the function of self-adaptive adjustment on the displacement of the spoiler relative to the support at the support node in the adjustment process of the spoiler. The spoiler supporting structure can adjust the inclination angle of the spoiler relative to the plane of the detector by adjusting the inserting height of the bracket 611 at one side in the cooling cavity, and can also adjust the distance between the spoiler and the detector by adjusting the inserting height of the two brackets to keep the angle of the spoiler constant. And the gradually changed gap is obtained by adjusting the position and the angle of the spoiler, and the gradually changed wind speed is obtained. The inclination angle of the spoiler relative to the plane of the detector is that the opening direction of the spoiler should face one side of the airflow inlet, namely along the longitudinal direction of the detector, and the airflow gap between the detector and the spoiler is narrowed along the airflow direction so as to reduce the temperature gradient. Depending on whether the probe chip is mounted on the probe 5 on one or both sides, spoilers may be mounted in the cooling chamber on one or both sides of the probe, respectively. The width of the spoiler is as close as possible to the width of the section of the cooling cavity, the spoiler is close to the wall of the cooling cavity at the upstream end of the air flow as close as possible, the split flow of the air flow in the gap between the lateral side and the front end is reduced, and the plane of the spoiler faces the plane direction of the detector.

The gas is further adjusted by the adjustable turbulence device 6 to obtain different flow velocities along the longitudinal direction of the detector, and finally flows out by the outlet opening adjusting device 7, and the gas flow state in the cooling cavity is further changed by adjusting the outlet opening to obtain a cooling result under a complex flow state, so that guidance can be provided for the arrangement details of the detector 5 in the whole detector.

Further, the outlet opening adjusting device 7 may be composed of a single baffle (installed at the end of the cooling cavity), and the opening adjustment is realized by the sliding of the baffle relative to the section of the cooling cavity; or the double-baffle plate structure comprises double baffle plates, wherein each baffle plate is provided with matching holes (the shape is not limited) distributed at intervals, one baffle plate is fixed relative to a cooling cavity channel, and the other baffle plate can realize the adjustment of the ventilation section by sliding on the fixed baffle plate to obtain different outlet opening degrees.

Further, according to the fact that the mounting of the detection chip on the detector 5 is single-sided or double-sided, a non-contact or contact type or a combination of the two temperature measurement modes can be selected. If non-contact measurement is performed by an optical method, such as an infrared thermometer, the upper cover of the cooling cavity is made of a transparent material, and the wall of the cooling cavity is as thin as possible, so that the measurement precision is not affected. The non-contact temperature measuring instrument is arranged outside the cooling chamber, is not fixed in position and can move according to different temperature measuring positions on the detector 5. If the contact type is used, the thermocouple sensor is adhered to the beam according to the measurement position to perform measurement.

Compared with the prior art, the invention has the beneficial effects that:

the single detector gas cooling test device is a test device with functions of pre-cooling the upstream gas, adjusting gas flow, inlet flow guide, turbulence in a cooling cavity, gas outlet opening and the like, and can measure the temperature of the detector in a non-contact or contact mode or a mode of combining the two modes. The detector is suitable for forced air cooling, particularly for detectors with long longitudinal length and relatively small transverse dimension, and the working temperature of the detector under air cooling is strictly controlled and the temperature gradient is required to be reduced. Through each airflow adjusting function of the device, gas environments with different flow rates and flow states are obtained, the cooling effect under different states is measured by monitoring the surface temperature of the detector, and an optimized gas cooling configuration scheme which is good in cooling effect and small in temperature rise gradient for the given detector can be summarized and judged.

Drawings

Fig. 1 is a schematic diagram of a detector air cooling test apparatus.

Fig. 2 is a schematic diagram of an internal structure of a detector air cooling test apparatus.

Fig. 3 is a side view of a detector air cooling test apparatus (the top cover of the cooling chamber is transparent).

FIG. 4 is a schematic view of an adjustable spoiler.

FIG. 5 is a side view of an articulating support structure inside a turbulator.

FIG. 6 is a schematic diagram of another embodiment of an adjustable spoiler.

FIG. 7 is a side view of an articulating support structure within another embodiment of an adjustable spoiler.

The device comprises a gas cooling device 1, a flow controller 2, an adjustable flow guide device 3, an air inlet cavity 31, a flow guide plug-in 32, a cooling cavity 4, a cooling cavity upper cover 41, a cooling cavity bottom plate 42, a detector 5, an upstream heat insulation support 51, a downstream heat insulation support 52, an adjustable turbulence device 6, a spoiler 61, an adjustable support 611, an outlet opening adjusting device 7, a temperature measuring sensor 8, a non-contact temperature measuring instrument 81 and a contact temperature measuring sensor 82.

Detailed Description

The following further describes the embodiments of the present invention with reference to the drawings.

The detector gas cooling test device comprises an upstream gas cooling device 1, a flow controller 2, an adjustable flow guide device 3, a cooling cavity 4, a detector 5, an upstream heat insulation support 51, a downstream heat insulation support 52, an adjustable flow disturbing device 6, an outlet opening degree adjusting device 7 and a temperature measuring probe 8, wherein the flow controller 2 is arranged in the upstream gas cooling device 1.

The temperature measuring probe 8 can be a non-contact type temperature measuring instrument 81, such as an infrared temperature measuring instrument, or a contact type sensor 82, such as a thermocouple sensor installed on the detector 5), and a signal line and a power line of the detector and a line of the contact type temperature measuring sensor are led out along a downstream outlet, as shown in fig. 3.

The adjustable flow guide device 3 is communicated with the cooling cavity 4, the detector 5, an upstream heat insulation support 51 and a downstream heat insulation support 52 which support and fix the detector 5 are installed in the cooling cavity 4, the adjustable turbulence device 6 is arranged below the detector 5, a downstream port of the cooling cavity 4 is communicated with the outlet opening adjusting device 7, gas is finally discharged from the position, and a signal line and a power line of the detector 5 and a circuit of the contact temperature measuring sensor are also led out through the outlet, so that the detector 5 is convenient to disassemble and assemble.

1) The gas from the gas source is first cooled by the cooling device 1, which consists of a cooling cavity, a cooling medium (such as dry ice or ice-water mixture) and a gas pipe arranged along the zigzag direction for increasing the heat exchange area, so as to reduce the temperature of the gas inlet and the highest temperature of the detector; then enters an adjustable flow guiding device 3 through a flow control meter 2, and enters a cooling cavity 4 after a desired flow field is obtained through flow guiding adjustment.

Further, the adjustable flow guiding device 3 is composed of an air inlet chamber 31 and a plurality of flow guiding inserts 32.

Further, the cross section of the air inlet cavity is not limited (can be made as required), and can be rectangular, semicircular and the like.

Further, the flow directing inserts may be in the form of posts, pins, plates, strips, or the like.

Further, the mounting orientation of the flow directing insert within the air intake cavity may be horizontal, or vertical, or inclined.

2) The device adjusts the flow guide effect by adjusting the number, the insertion depth, the direction and the like of the flow guide plug-in units through adjusting the adjustable flow guide device 3, and the gas can uniformly flow into the cooling cavity 4 (can be adjusted as required, if transversely differentiated) after passing through the gas inlet cavity as much as possible.

Further, the cooling chamber 4 is composed of a cooling chamber upper cover 41 and a cooling chamber bottom plate 42.

Further, the detector 5 is mounted in the cooling chamber 4 by an upstream heat insulation support 51 and a downstream heat insulation support 52. The support adopting the heat insulation material or the non-heat insulation support is adopted, and a heat insulation gasket is arranged between the support and the detector 5 for heat insulation, so that the influence of heat conduction on the measurement of the air cooling effect is avoided. The size of the bracket is close to that of a detector supporting structure as much as possible, and the bracket is small as much as possible, occupies less extra space and reduces the blockage to air inlet.

Further, the probe 5 is positioned in the cooling cavity longitudinally along the axis of the cooling cavity, and transversely can be horizontally or vertically placed.

Further, the shape and size of the cooling chamber 4 are not exclusive and can be determined synthetically according to the detector 5 and its arrangement in the overall structure of the detector. The cooling chamber passage cross-sectional size has a priority and the cross-sectional shape of the inlet chamber 31 should match the cooling chamber (and cooling chamber cover 41). The cross-sectional transition at the junction is smooth.

3) The gas enters the cooling cavity channel through the adjustable flow guiding device 3, the section size of the gas flow channel near the detector 5 is changed through the adjustment of the adjustable flow disturbing device 6 in the cooling cavity 4, and the gas flow direction and the gas speed are changed.

Furthermore, the adjustable turbulence device 6 can be composed of a plurality of turbulence blocks with different specifications, the turbulence blocks form a convex structure from the wall of the cooling cavity to the direction of the detector, the heights of the turbulence blocks with different specifications are different, and the heights of the protrusions are adjusted through the turbulence blocks with different heights to realize a turbulence effect; the mounting positions of the turbulence blocks can be arranged on the inner wall of the cooling cavity 4 in a single-point or multi-point mode according to requirements along the longitudinal direction of the detector module, and the height direction of the turbulence blocks is perpendicular to the plane direction of the detector. The adjustable turbulence device 6 can also be an inserted turbulence block, is inserted into the cooling cavity 4 from the outer side to form a bulge facing the detector 5, and realizes turbulence adjustment through the insertion depth, namely the height of the bulge; the mounting position of the plug-in turbulence block can be arranged on the inner wall of the cooling cavity 4 in a single-point or multi-point mode according to requirements along the longitudinal direction of the detector. The air flow is achieved by arranging and adjusting a flow disturbance block at a position near the detector 5 to adjust the air flow gap near the detector 5. According to the Bernoulli equation, the adjustment of the ventilation gap at the periphery of the detector can cause the change of the air flow rate and the direction, the gradually changed ventilation gap is generated by the gradually changed spoiler height, and then the gradually changed air flow rate is obtained, and the gradually changed cooling effect is generated. The height of the turbulence blocks arranged at multiple points along the airflow direction is higher and higher, namely the ventilation gap is gradually reduced, and the airflow speed is gradually increased so as to reduce the temperature gradient.

Further, the adjustable spoiler device can also be realized by installing a spoiler 61 in the cooling cavity (as shown in fig. 4), wherein the spoiler 61 is a straight plate or a plate with a curved arc. The spoiler 61 is supported and fixed at both ends thereof on two brackets 611 which are insertedly mounted on the wall of the cooling chamber 4. Can one or two in two supports can both carry out height control, the advantage is the non-interference regulation that realizes outside the chamber, avoids taking apart the condition that the cooling chamber could be adjusted. One end of the spoiler is hinged with the bracket in a supporting mode, and the other end of the spoiler is hinged with the bracket in a supporting mode of sliding, namely structurally, the spoiler is hinged with the bracket at one side and is in butt joint with the bracket through a shaft and a hole; the spoiler and the support are hinged and are arranged on one side of the support in a sliding mode, the spoiler and the support are in butt joint with the long slotted hole through a shaft, and the plane of the spoiler faces the plane direction of the detector. The supporting structure of the spoiler has the advantage that the spoiler has a self-adaptive adjusting function on the displacement of the spoiler relative to the bracket at the supporting node in the adjusting process of the spoiler. The spoiler supporting structure can adjust the inclination angle of the spoiler relative to the plane of the detector by adjusting the inserting height of the bracket 611 at one side in the cooling cavity, and can also adjust the distance between the spoiler and the detector by adjusting the inserting height of the two brackets to keep the angle of the spoiler constant. And the gradually changed gap is obtained by adjusting the position and the angle of the spoiler, and the gradually changed wind speed is obtained. The inclination angle of the spoiler relative to the plane of the detector is that the opening direction of the spoiler should face one side of the airflow inlet, namely along the longitudinal direction of the detector, and the airflow gap between the detector and the spoiler is narrowed along the airflow direction so as to reduce the temperature gradient. Depending on whether the mounting of the detection chip on the detector 5 is single-sided or double-sided, spoilers may be mounted in the cooling cavity on one or both sides opposite the detector 5, respectively.

4) The gas is further adjusted by the adjustable turbulence device 6 to obtain different flow velocities along the longitudinal direction of the detector, and finally flows out by the outlet opening adjusting device 7, and the gas flow state in the cooling cavity is further changed by adjusting the outlet opening to obtain a cooling result under a complex flow state, so that the arrangement details of the detector 5 in the whole detector are guided.

Further, the outlet opening adjusting device 7 may be composed of a single baffle (installed at the end of the cooling cavity), and the opening adjustment is realized by the sliding of the baffle relative to the section of the cooling cavity; or the double-baffle plate structure comprises double baffle plates, wherein each baffle plate is provided with matching holes (the shape is not limited) distributed at intervals, one baffle plate is fixed relative to a cooling cavity channel, and the other baffle plate can realize the adjustment of the ventilation section by sliding on the fixed baffle plate to obtain different outlet opening degrees.

5) According to the single-sided or double-sided mounting of the detection chip on the detector 5, a non-contact or contact type or a combination of the two temperature measurement modes can be selected. If non-contact measurement is performed by an optical method, such as an infrared thermometer, the upper cover of the cooling cavity needs to be made of a transparent material, and the wall of the cooling cavity needs to be as thin as possible, so that the measurement precision is not affected. The non-contact temperature measuring instrument is arranged outside the cooling chamber, is not fixed in position and can move according to different temperature measuring positions on the detector 5. If the contact type is adopted, the thermocouple sensor is adhered to the beam to perform measurement according to the measurement position.

Although specific details of the invention are disclosed for purposes of illustration and in order to facilitate an understanding of the contents of the invention and its implementation, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. It is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (10)

1. A detector gas cooling test device is characterized by comprising a gas cooling device (1), a flow controller (2), an adjustable flow guide device (3), a cooling cavity (4), an adjustable flow disturbing device (6), a plurality of temperature measuring probes (8), an upstream heat insulation support (51) and a downstream heat insulation support (52), wherein the upstream heat insulation support and the downstream heat insulation support are positioned in the cooling cavity (4) and used for supporting a detector; one end of the gas cooling device (1) is used for being connected with a gas source, the other end of the gas cooling device is connected with the inlet end of the cooling cavity (4) through the flow controller (2) and the adjustable flow guide device (3) in sequence, the adjustable turbulence device (6) is arranged on the inner wall of the cooling cavity between the upstream heat insulation support (51) and the downstream heat insulation support (52), and each temperature measuring probe is used for measuring the temperature of each set position of the detector.

2. The detector gas cooling test apparatus according to claim 1, further comprising an outlet opening degree adjusting device (7) for adjusting gas discharge; the outlet end of the cooling cavity (4) is connected with the outlet opening adjusting device (7).

3. The detector air-cooling test apparatus according to claim 2, wherein the outlet opening degree adjusting means (7) includes a shutter that is slidable with respect to the cross section of the gas passage to adjust the opening degree.

4. The detector air-cooling test apparatus of claim 2, wherein the outlet opening adjustment device (7) includes a first baffle plate and a second baffle plate, wherein the first baffle plate and the second baffle plate are respectively provided with a plurality of holes distributed at intervals, the first baffle plate is fixedly connected with the outlet end of the air passage, and the second baffle plate can slide relative to the first baffle plate to realize the opening adjustment.

5. The detector air-cooling test device of any of claims 1 to 4, wherein the adjustable turbulator (6) comprises a plurality of turbulators of different specifications, the turbulators are of a convex structure from the cooling chamber wall to the detector direction, and the height of the protrusions of the turbulators of different specifications is different; the mounting positions of the turbulence blocks are arranged on the inner wall of the cooling cavity in a single-point or multi-point mode according to the temperature measuring position requirement of the detector along the longitudinal direction of the cooling cavity, and the height of the turbulence blocks along the airflow direction is higher and higher when the turbulence blocks are arranged in the multi-point mode.

6. The detector air-cooling test device of any one of claims 1 to 4, wherein the adjustable turbulator (6) comprises a plurality of plug-in turbulator blocks, the plug-in turbulator blocks are inserted into the cooling cavity (4) from the outer side of the cooling cavity (4) to form a protruding structure facing the detector, and the insertion depth of the plug-in turbulator blocks is adjustable; the installation position of each inserted flow disturbing block is that the inserted flow disturbing blocks are arranged on the cavity wall of the cooling cavity (4) in a single-point or multi-point mode according to the temperature measuring position requirement of the detector along the longitudinal direction of the cooling cavity (4), and the inserted flow disturbing blocks are higher and higher along the airflow direction when the inserted flow disturbing blocks are arranged in the multi-point mode.

7. The detector air-cooling test device according to any one of claims 1 to 4, wherein two supports, namely a first support and a second support, are mounted on the wall of the cooling chamber (4) in an insertion manner, and the extending height of at least one support relative to the wall of the cooling chamber is adjustable; the adjustable turbulence device (6) is a spoiler (61), one end of the spoiler (61) is connected with the first support, and the other end of the spoiler is connected with the second support.

8. The detector air-cooling test apparatus according to claim 7, wherein one end of the spoiler (61) is hinged to the first bracket, and the other end of the spoiler (61) is connected to the second bracket by shaft-to-slotted hole joint, so as to realize hinge + slide function, and the adjustment of the inclination angle between the spoiler (61) and the detector and the distance between the spoiler (61) and the detector is realized by adjusting the height of the inserted bracket, and the opening direction of the inclination angle is toward the air inlet side.

9. The detector air-cooling test apparatus of claim 1, wherein the adjustable flow guide device (3) comprises an air inlet cavity (31) and a plurality of flow guide inserts (32) inserted into the air inlet cavity; the number, the insertion depth and the insertion direction of the flow guide plug-in pieces (32) are adjustable; the temperature measuring probe is a non-contact type temperature measuring instrument or a contact type probe installed on the detector.

10. The detector gas cooling test apparatus of claim 1, further comprising a second temperature probe for measuring the inlet and outlet gas temperatures of the cooling chamber.

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