A special vehicle solar radiation simulation test chamber

Abstract

The present invention belongs to the technical field of environmental simulation test, and specifically relates to a whole vehicle solar radiation simulation test cabin for special vehicles, including a control system, a cabin, a radiation lamp holder and a refrigeration system, the cabin including a low cabin and a high cabin, the refrigeration system including a cooling tower, a chiller, a low cabin surface cooler and a high cabin surface cooler, a cold water outlet pipeline and a cold water return pipeline are connected between the cooling tower and the chiller, the chiller is connected with a chilled water outlet pipeline, the chilled water outlet pipeline is connected with a cooling water inlet branch, the cooling water inlet branch is connected with the low cabin surface cooler and the high cabin surface cooler, the low cabin surface cooler and the high cabin surface cooler are connected with a cooling water outlet branch, the cooling water outlet branch is connected with a chilled water return pipeline, and the chilled water return pipeline is connected with the chiller. The present invention can be used for special vehicles to perform solar radiation tests by designing a low cabin and a high cabin, and the refrigeration system provided at the same time can effectively avoid excessive temperature inside the cabin.

Description

Technical Field

[0001] The invention belongs to the technical field of environmental simulation tests, and in particular relates to a whole vehicle solar radiation simulation test chamber for special vehicles. Background Art

[0002] Solar radiation test is an artificial simulated environment test, which is used to simulate the effects of products being exposed to sunlight radiation during use on the ground or in the lower atmosphere or during unsheltered storage. It is an important test item for automobile inspection, especially special vehicle inspection.

[0003] In the vehicle solar radiation test, the whole vehicle or vehicle parts are usually placed in a test chamber, and the radiation of the whole vehicle or test parts is simulated by simulating sunlight through the light box carried by the radiation lamp stand. However, for special vehicles, the front of the vehicle is small, and the cargo compartment is high, and the cargo compartment needs to be flipped up and raised for a comprehensive solar radiation test. Therefore, in the inspection of special vehicles, the conventional rectangular structure test chamber cannot meet such requirements. In addition, as the radiation lamp stand works, the temperature in the chamber will rise, and the lamps of the radiation lamp stand are prone to aging and damage in a high temperature environment. No relevant refrigeration solution is proposed in the existing test chamber. For this reason, we propose a special vehicle whole vehicle solar radiation simulation test chamber. Summary of the invention

[0004] The purpose of the present invention is to provide a whole vehicle solar radiation simulation test chamber for special vehicles, so as to solve the problems existing in the background technology.

[0005] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows: a whole vehicle solar radiation simulation test chamber for special vehicles, comprising a control system, a chamber body, a radiation lamp holder and a refrigeration system, the chamber body comprising a low chamber and a high chamber, the low chamber and the high chamber are connected, the low chamber and the high chamber are both provided with temperature sensors, there are a plurality of radiation lamp holders, each of which is sequentially arranged at the top of the low chamber and the high chamber, and the tops of the low chamber and the high chamber are connected to each of the radiation lamp holders through an electric hoist;

[0006] The refrigeration system includes a cooling tower, a chiller, a low-tank surface cooler and a high-tank surface cooler. The cooling tower and the chiller are arranged outside the cabin body, the low-tank surface cooler is arranged inside the low cabin, and the high-tank surface cooler is arranged inside the high cabin. A cold water outlet pipeline and a cold water return pipeline are connected to the pipeline between the cooling tower and the chiller. The cold water outlet pipeline is connected to a first water pump. The chiller pipeline is connected to a chilled water outlet pipeline. The chilled water outlet pipeline is sequentially connected to a second water pump and two cooling water inlet branches. The two cooling water inlet branches are respectively connected to the low-tank surface cooler and the high-tank surface cooler pipelines. The low-tank surface cooler and the high-tank surface cooler pipelines are connected to two cooling water outlet branches. The two cooling water outlet branches are commonly connected to a chilled water return pipeline, and the chilled water return pipeline is connected to the chiller pipeline;

[0007] Each connecting pipeline of the refrigeration system is provided with a switch valve, and the control system is electrically connected to the radiation lamp stand, the electric hoist, the refrigeration system and each of the temperature sensors respectively.

[0008] The chilled water outlet pipeline and the chilled water return pipeline are jointly provided with a buffer water tank, and an overflow port is provided at the upper end of the buffer water tank.

[0009] The buffer water tank is also connected to a sewage pipe through a pipeline, and an overflow pipe is connected to the sewage pipe through a pipeline between the overflow port and the sewage pipe.

[0010] The cold water outlet pipeline is also connected to a bypass pipeline, the other end of the bypass pipeline is connected to the cold water return pipeline, and a plate heat exchanger is commonly connected between the bypass pipeline and the chilled water outlet pipeline.

[0011] The two cooling water inlet branches are also each provided with an electrically controlled three-way valve, and the two cooling water outlet branches are respectively connected to the two cooling water inlet branches through the electrically controlled three-way valve pipelines, and a connecting pipe is provided between the chilled water outlet pipeline at the rear end of the buffer water tank and the chilled water return pipeline.

[0012] The radiation lamp stand includes an upper aluminum profile, a middle aluminum profile and a bottom aluminum profile which are fixed to each other in sequence from top to bottom. A plurality of light boxes are installed on the lower side of the middle aluminum profile, the bottom aluminum profile is located below the light box, the upper aluminum profile is located above the light box, and a storage frame is provided on the top of the low cabin.

[0013] The middle-layer aluminum profile is composed of a plurality of first transverse brackets and a plurality of first longitudinal brackets. The light boxes are fixedly arranged at equal distances on the lower sides of the first longitudinal brackets. Each light box is also provided with a shading frame. The lower end of the shading frame is open and shading gratings of different mesh sizes are installed on both lateral sides. The shading frames of each first longitudinal bracket are connected as a whole through a connecting rod. The middle-layer aluminum profile is installed with a motor and a reducer. The connecting rod is connected to the motor through the reducer. A semicircular opening corresponding to the first longitudinal bracket is opened on the upper side of the shading frame.

[0014] Flip lamp stands are also provided on both lateral sides of the middle aluminum profile, and the flip lamp stands are composed of a plurality of second lateral brackets and a second longitudinal bracket. Each of the first lateral brackets is provided with a connecting part, and each of the second lateral brackets is detachably connected to each of the connecting parts by bolts, and the second longitudinal bracket is used to install the light box.

[0015] Each of the second transverse brackets is also commonly provided with a connecting bracket on a side away from the middle-layer aluminum profile, the connecting bracket is provided with a plurality of guide wheels, and a plurality of walking wheels are installed at the bottom of the bottom-layer aluminum profile.

[0016] The two second transverse brackets located at both ends in the longitudinal direction are both provided with auxiliary support rods, the auxiliary support rods are provided with locking bolts, and the bottom aluminum profile is provided with a plurality of reserved holes matching the locking bolts.

[0017] The present invention arranges the cabin as a low cabin and a high cabin. When the special vehicle is subjected to a solar radiation test, the front of the vehicle enters the low cabin and the cargo compartment can enter the high cabin for flipping and lifting, thereby meeting the test requirements of the special vehicle. At the same time, the refrigeration system arranged can effectively prevent the temperature inside the cabin from being too high, and prevent the lamps of the radiation lamp holder from aging and being damaged in a high temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further illustrated by means of the non-limiting examples given in the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of a cabin body according to the first embodiment of the present invention and a schematic diagram of a storage frame according to the second embodiment;

[0020] Figure 2 is a schematic diagram of a refrigeration system according to a first embodiment of the present invention;

[0021] Figure 3 for Figure 2 A schematic diagram of the structure at A;

[0022] Figure 4 for Figure 2 A schematic diagram of the structure at B;

[0023] Figure 5 This is a schematic structural diagram of the radiation lamp stand of the second embodiment of the present invention when the flip lamp stand is not installed;

[0024] Figure 6 It is a structural schematic diagram of the radiation lamp stand of the second embodiment of the present invention when the lamp stand is flipped on both sides and fixed longitudinally;

[0025] The main component symbols are described as follows:

[0026] Embodiment 1: Cabin 100, lower cabin 101, upper cabin 102, cooling tower 103, cold water outlet pipeline 1031, cold water return pipeline 1032, first water pump 1033, bypass pipeline 1034, chiller 104, chilled water outlet pipeline 1041, second water pump 1042, cooling water inlet branch 1043, cooling water outlet branch 1044, chilled water return pipeline 1045, electric three-way valve 1046, connecting pipe 1047, lower cabin surface cooler 105, upper cabin surface cooler 106, buffer water tank 107, overflow port 1071, drain pipe 1072, overflow pipe 1073, plate heat exchanger 108, switch valve 109;

[0027] Embodiment 2: upper aluminum profile 200, middle aluminum profile 201, first transverse bracket 2011, first longitudinal bracket 2012, bottom aluminum profile 202, walking wheel 2021, light box 203, shading frame 204, semicircular opening 2041, shading grating 205, flip lamp frame 206, second transverse bracket 2061, second longitudinal bracket 2062, auxiliary support rod 2063, connecting part 207, connecting bracket 208, guide wheel 2081, storage frame 209. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0029] Embodiment 1:

[0030] like Figures 1 to 4 A special vehicle whole vehicle solar radiation simulation test chamber shown in the figure includes a control system, a cabin body 100, a radiation lamp rack and a refrigeration system. The cabin body 100 includes a low cabin 101 and a high cabin 102. The low cabin 101 and the high cabin 102 are connected. The low cabin 101 and the high cabin 102 are both provided with temperature sensors. There are multiple radiation lamp racks, and each radiation lamp rack is arranged in sequence on the top of the low cabin 101 and the high cabin 102. The tops of the low cabin 101 and the high cabin 102 are connected to each other through an electric hoist.

[0031] The refrigeration system includes a cooling tower 103, a chiller 104, a low-cabin surface cooler 105, and a high-cabin surface cooler 106. The cooling tower 103 and the chiller 104 are arranged outside the cabin 100, the low-cabin surface cooler 105 is arranged inside the low cabin 101, and the high-cabin surface cooler 106 is arranged inside the high cabin 102. A cold water outlet pipeline 1031 and a cold water return pipeline 1032 are connected to the pipeline between the cooling tower 103 and the chiller 104. The cold water outlet pipeline 1031 is connected to a first water pump 1033. The chiller 104 is connected to a chilled water outlet pipeline 1041. The chilled water outlet pipeline 1041 is connected to the chilled water return pipeline 1032 in sequence. The pipeline is connected to a second water pump 1042 and two cooling water inlet branches 1043, the two cooling water inlet branches 1043 are respectively connected to the lower cabin surface cooler 105 and the high cabin surface cooler 106 pipelines, the lower cabin surface cooler 105 and the high cabin surface cooler 106 pipelines are connected to two cooling water outlet branches 1044, the two cooling water outlet branches 1044 are commonly connected to a chilled water return pipeline 1045, the chilled water return pipeline 1045 is connected to the chiller 104 pipeline, each connecting pipeline of the refrigeration system is provided with a switch valve 109, and the control system is respectively electrically connected to the radiation lamp stand, the electric hoist, the refrigeration system and each temperature sensor.

[0032] The chilled water outlet pipeline 1041 and the chilled water return pipeline 1045 are jointly provided with a buffer water tank 107, an overflow port 1071 is provided at the upper end of the buffer water tank 107, and the buffer water tank 107 is also connected to a sewage pipe 1072 by a pipeline, and an overflow pipe 1073 is connected to the sewage pipe 1072 by a pipeline.

[0033] The cabin 100 is set as a low cabin 101 and a high cabin 102, and the electric hoists on the top of the low cabin 101 and the high cabin 102 can control the lifting and lowering adjustment of the radiation lamp holder, so that the cabin 100 can not only be used for special vehicles without cargo compartments or with cargo compartments that are not much different in height from the front of the vehicle for solar radiation tests, but also when the special vehicle is conducting solar radiation tests, the front of the vehicle enters the low cabin 101, and the cargo compartment can enter the high cabin 102 for flipping and lifting, thereby meeting the test requirements of special vehicles; the low cabin surface cooler 105 is used for heat exchange and cooling of the low cabin 101, and the high cabin surface cooler 106 is used for heat exchange and cooling of the high cabin 102, thereby avoiding excessive temperature of the radiation lamp holder inside the cabin 100. In actual settings, the surface area of ​​the low cabin surface cooler 105 can be set smaller, and the surface area of ​​the high cabin surface cooler 106 can be set larger, thereby being suitable for cooling the low cabin 101 in a small space and cooling the high space. The high cabin 102 is cooled; the chiller 104 is connected to the cooling tower 103 through a cold water outlet pipe 1031 and a cold water return pipe 1032 to form a circulation passage, and the water preliminarily cooled in the cooling tower 103 is circulated and pumped into the chiller 104 by the first water pump 1033; and the chiller 104 can perform secondary cooling on the preliminarily cooled water introduced into the cooling tower 103. When the second water pump 1042 is started, the secondary cooled chilled water passes through the chilled water outlet pipe 1041 and two cooling water inlet branches 1043 in turn into the low cabin surface cooler 105 and the high cabin surface cooler 106 respectively, and heat exchange cooling is performed on the ambient temperature in the low cabin 101 and the high cabin 102 respectively. The water after heat exchange cooling flows back to the chiller 104 through the two cooling water outlet branches 1044 and the chilled water return pipe 1045 in turn, thereby realizing the refrigeration cycle of the cabin body 100.

[0034] The buffer water tank 107 can play a buffering role, so that the pressure and flow rate of the secondary cooling chilled water can be buffered during the circulation process. At the same time, the water level changes in the buffer tank 107 can be monitored by the upper float 1072 and the lower float 1073. After the water level is too high and reaches the overflow port 1071, it can be introduced into the drain pipe 1072 through the overflow pipe 1073 for discharge, or the drain pipe 1072 can be opened manually to discharge the water in the buffer water tank 107.

[0035] The specific use process includes the following steps:

[0036] Step ①: Check the cabin facilities, refrigeration system and radiation lamp rack. After checking that there are no abnormalities, drive the special vehicle into the cabin 100, so that the front of the special vehicle enters the low cabin 101 and the cargo compartment enters the high cabin 102;

[0037] Step ②: The control system controls the electric hoist to adjust the radiation lamp racks in the low cabin 101 and the high cabin 102 to the required test height, and then the radiation lamp racks can be turned on to perform the solar radiation simulation test;

[0038] Step ③: During the test, the temperature sensor monitors the ambient temperature in the lower cabin 101 and the upper cabin 102. When the ambient temperature in the lower cabin 101 and the upper cabin 102 is high, the refrigeration system is started;

[0039] Step ④: The switch valves 109 of the cold water outlet pipe 1031 and the cold water return pipe 1032 are opened, and the initially cooled water in the cooling tower 103 enters the chiller 104. After secondary cooling by the chiller 104, the second water pump 1042 sequentially passes the secondary cooled chilled water through the chilled water outlet pipe 1041 and the two cooling water inlet branches 1043 into the low cabin surface cooler 105 and the high cabin surface cooler 106, respectively performing heat exchange cooling on the ambient temperature in the low cabin 101 and the high cabin 102 to avoid the temperature of the radiation lamp holder being too high. The water after heat exchange cooling is sequentially returned to the chiller 104 through the two cooling water outlet branches 1044 and the chilled water return pipe 1045, thereby realizing a refrigeration cycle for the ambient temperature of the cabin body 100.

[0040] The low cabin and the high cabin designed in this embodiment can be used for special vehicles to carry out solar radiation tests, and the refrigeration system provided at the same time can effectively prevent the temperature inside the cabin from being too high.

[0041] Further designs based on the above technical solutions, such as Figure 2 and Figure 4 As shown, the cold water outlet pipeline 1031 is also connected to a bypass pipeline 1034, the other end of the bypass pipeline 1034 is connected to the cold water return pipeline 1032, and a plate heat exchanger 108 is commonly connected between the bypass pipeline 1034 and the chilled water outlet pipeline 1041.

[0042] With such an arrangement, during the refrigeration process of the refrigeration system, as the temperature inside the cabin 100 decreases, it is necessary to control the refrigeration capacity of the refrigeration system to avoid a sudden drop in the temperature inside the cabin 100. A circulation pipeline is formed between the bypass pipeline 1034 arranged between the cold water outlet pipeline 1031 and the cold water return pipeline 1032 and the cooling tower 103. When the temperature decreases and the refrigeration capacity needs to be reduced, the switch valve 109 arranged on the bypass pipeline 1034 is opened. Since both ends of the bypass pipeline 1034 are respectively connected to the cold water outlet pipeline 1031 and the cold water return pipeline 1032, a circulation pipeline is formed between the bypass pipeline 1034 and the cooling tower 103. And it is connected to the cold water return pipe 1032, so the switch valve 109 is set at both ends of the bypass pipe 1034, and the water of the preliminary cooling of the cooling tower 103 can enter the plate heat exchanger 108 through the bypass pipe 1034, and exchange heat with the secondary cooled chilled water in the chilled water outlet pipe 1041 through the plate heat exchanger 108, so that the chilled water in the chilled water outlet pipe 1041 absorbs heat, and then enters the cooling capacity of the low cabin surface cooler 105 and the high cabin surface cooler 106, so that the temperature regulation during cooling is more controllable and stable.

[0043] A further design based on the above technical solution, such as Figure 2 and Figure 4 As shown, the two cooling water inlet branches 1043 are also provided with an electrically controlled three-way valve 1046, and the two cooling water outlet branches 1044 are respectively connected to the two cooling water inlet branches 1043 through the electrically controlled three-way valve 1046 pipelines, and a connecting pipe 1047 is provided between the chilled water outlet pipeline 1041 located at the rear end of the buffer water tank 107 and the chilled water return pipeline 1045.

[0044] Since the spaces of the lower cabin 101 and the upper cabin 102 are inconsistent, the cooling capacity required in the process of cooling to the required temperature is also different. For this reason, the electrically controlled three-way valve 1046 arranged in the two cooling water inlet branches 1043 can cut off the connection of the corresponding lower cabin surface cooler 105 or the high cabin surface cooler 106 by controlling the electrically controlled three-way valve 1046 after the ambient temperature of the lower cabin 101 or the high cabin 102 is cooled to the required temperature, so that the corresponding lower cabin surface cooler 105 or the high cabin surface cooler 106 is no longer cooled, thereby making the cooling of the lower cabin 101 and the high cabin 102 locally controllable.

[0045] Embodiment 2:

[0046] Based on the first embodiment, the radiation lamp holder is further described. Figures 5 and 6 As shown, the radiation lamp stand includes an upper aluminum profile 200, a middle aluminum profile 201 and a bottom aluminum profile 202 which are fixed to each other in sequence from top to bottom, a plurality of light boxes 203 are installed on the lower side of the middle aluminum profile 201, the bottom aluminum profile 202 is located below the light boxes 203, the upper aluminum profile 200 is located above the light boxes 203, and a storage frame 209 is provided on the top of the low cabin 101.

[0047] The middle aluminum profile 201 is used to install and fix the light box 203. When in use, the radiation lamp stand can be driven to adjust its height by pulling the radiation lamp stand through the hook of the electric hoist. After use, the hook of the electric hoist can be removed to move the radiation lamp stand out from the cabin 100. The radiation lamp stand of the moved cabin 100 can be hoisted in the storage frame 209 and stacked. At this time, the bottom aluminum profile 202 can provide protective support for the bottom of the light box 203, and the upper aluminum profile 200 can provide protective support for the upper side of the light box 203, so that the radiation lamp stand will not damage the light box 203 when stacked.

[0048] Furthermore, in order to make the radiation lamp stand have a shading adjustment function, such as Figures 5 and 6 As shown, the middle-layer aluminum profile 201 is composed of a plurality of first transverse brackets 2011 and a plurality of first longitudinal brackets 2012, and each light box 203 is fixedly arranged at an equal distance on the lower side of each first longitudinal bracket 2012. Each light box 203 is also provided with a shading frame 204, and the lower end of the shading frame 204 is open and shading gratings 205 of different mesh sizes are installed on both lateral sides. The shading frames 204 of each first longitudinal bracket 2012 are connected as a whole through a connecting rod, and the middle-layer aluminum profile 201 is installed with a motor and a reducer, and the connecting rod is connected to the motor through the reducer. A semicircular arc opening 2041 corresponding to the first longitudinal bracket 2012 is opened on the upper side of the shading frame 204.

[0049] By starting the motor and driving the connecting rod to rotate at a low speed through the speed reducer, the light shielding frame 204 can be rotated. Since the light shielding frame 204 has a semi-circular opening 2041, the light shielding frame 204 can be limited by the semi-circular opening 2041 and the first longitudinal bracket 2012 during the rotation, so that the flipping angle of the light shielding frame 204 does not exceed 90°. During the forward and reverse rotation of the light shielding frame 204, the light shielding gratings 205 on both sides can be respectively turned to the lower side of the light box 203 for shielding, so that the radiation intensity of the radiation lamp frame is reduced. The larger the mesh number of the light shielding gratings 205 on both sides, the better the shading effect, and the smaller the mesh number, the worse the shading effect, thereby simulating the radiation intensity when there is no shading and under two different shading conditions.

[0050] Furthermore, Figure 6 As shown, flip lamp racks 206 are provided on both lateral sides of the middle aluminum profile 201. The flip lamp racks 206 are composed of a plurality of second lateral brackets 2061 and a second longitudinal bracket 2062. Each first lateral bracket 2011 is provided with a connecting portion 207. Each second lateral bracket 2061 is detachably connected to each connecting portion 207 by bolts. The second longitudinal bracket 2062 is used to install the light box 203.

[0051] A connecting bracket 208 is also commonly provided on the side of each second transverse bracket 2061 away from the middle aluminum profile 201 . The connecting bracket 208 is provided with a plurality of guide wheels 2081 . A plurality of walking wheels 2021 are installed at the bottom of the bottom aluminum profile 202 .

[0052] The two second transverse brackets 2061 located at both ends in the longitudinal direction are both provided with auxiliary support rods 2063, the auxiliary support rods 2063 are provided with locking bolts, and the bottom aluminum profile 202 is provided with a plurality of reserved holes matching the locking bolts.

[0053] By bolting each second transverse bracket 2061 of the flip lamp rack 206 to the connecting portion 207 of each first transverse bracket 2011, the second transverse bracket 2061 of the flip lamp rack 206 can be transversely fixed to the connecting portion 207 during use, so that the radiation area of ​​the radiation lamp rack is further expanded. When it is necessary to move out of the cabin 100, the fixation can be loosened first, and then the second transverse bracket 2061 of the flip lamp rack 206 can be longitudinally fixed to the connecting portion 207, thereby reducing the width of the radiation lamp rack to a certain extent and facilitating removal.

[0054] At the same time, when the flip lamp stand 206 is fixed longitudinally, the guide wheels 2081 provided on the connecting bracket 208 and the walking wheels 2021 provided on the bottom of the bottom aluminum profile 202 enable people to move out the radiation lamp stand more conveniently.

[0055] Furthermore, when the flip lamp stand 206 is fixed horizontally for use, the auxiliary support rod 2063 flips along with the second horizontal bracket 2061 , and the second horizontal bracket 2061 can be fixed through the reserved holes provided in the bottom aluminum profile 202 , thereby playing the role of auxiliary support for the flip lamp stand 206 .

[0056] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A whole vehicle solar radiation simulation test chamber for special vehicles, comprising a control system, a chamber body, a radiation lamp stand and a refrigeration system, characterized in that: The cabin body includes a low cabin and a high cabin, the low cabin and the high cabin are connected, the low cabin and the high cabin are both provided with temperature sensors, there are multiple radiation lamp racks, each of the radiation lamp racks is sequentially arranged on the top of the low cabin and the high cabin, and the top of the low cabin and the high cabin are connected to each of the radiation lamp racks through an electric hoist; The refrigeration system includes a cooling tower, a chiller, a low-tank surface cooler and a high-tank surface cooler. The cooling tower and the chiller are arranged outside the cabin body, the low-tank surface cooler is arranged inside the low cabin, and the high-tank surface cooler is arranged inside the high cabin. A cold water outlet pipeline and a cold water return pipeline are connected to the pipeline between the cooling tower and the chiller. The cold water outlet pipeline is connected to a first water pump. The chiller pipeline is connected to a chilled water outlet pipeline. The chilled water outlet pipeline is sequentially connected to a second water pump and two cooling water inlet branches. The two cooling water inlet branches are respectively connected to the low-tank surface cooler and the high-tank surface cooler pipelines. The low-tank surface cooler and the high-tank surface cooler pipelines are connected to two cooling water outlet branches. The two cooling water outlet branches are commonly connected to a chilled water return pipeline, and the chilled water return pipeline is connected to the chiller pipeline; Each connecting pipeline of the refrigeration system is provided with a switch valve, and the control system is electrically connected to the radiation lamp stand, the electric hoist, the refrigeration system and each of the temperature sensors respectively; The chilled water outlet pipeline and the chilled water return pipeline are jointly provided with a buffer water tank, and an overflow port is provided at the upper end of the buffer water tank; The cold water outlet pipeline is also connected to a bypass pipeline, the other end of the bypass pipeline is connected to the cold water return pipeline, a plate heat exchanger is commonly connected between the bypass pipeline and the chilled water outlet pipeline, the two cooling water inlet branches are also each provided with an electrically controlled three-way valve, the two cooling water outlet branches are respectively connected to the two cooling water inlet branches through the electrically controlled three-way valve pipelines, and a connecting pipe is provided between the chilled water outlet pipeline at the rear end of the buffer water tank and the chilled water return pipeline.

2. A special vehicle whole vehicle solar radiation simulation test chamber according to claim 1, characterized in that: The buffer water tank is also connected to a sewage pipe through a pipeline, and an overflow pipe is connected to the sewage pipe through a pipeline between the overflow port and the sewage pipe.

3. A special vehicle whole vehicle solar radiation simulation test chamber according to claim 2, characterized in that: The radiation lamp stand includes an upper aluminum profile, a middle aluminum profile and a bottom aluminum profile which are fixed to each other in sequence from top to bottom. A plurality of light boxes are installed on the lower side of the middle aluminum profile, the bottom aluminum profile is located below the light box, the upper aluminum profile is located above the light box, and a storage frame is provided on the top of the low cabin.

4. A special vehicle whole vehicle solar radiation simulation test chamber according to claim 3, characterized in that: The middle-layer aluminum profile is composed of a plurality of first transverse brackets and a plurality of first longitudinal brackets. The light boxes are fixedly arranged at equal distances on the lower sides of the first longitudinal brackets. Each light box is also provided with a shading frame. The lower end of the shading frame is open and shading gratings of different mesh sizes are installed on both lateral sides. The shading frames of each first longitudinal bracket are connected as a whole through a connecting rod. The middle-layer aluminum profile is installed with a motor and a reducer. The connecting rod is connected to the motor through the reducer. A semicircular opening corresponding to the first longitudinal bracket is opened on the upper side of the shading frame.

5. A whole vehicle solar radiation simulation test chamber for special vehicles according to claim 4, characterized in that: Flip lamp stands are also provided on both lateral sides of the middle aluminum profile, and the flip lamp stands are composed of a plurality of second lateral brackets and a second longitudinal bracket. Each of the first lateral brackets is provided with a connecting part, and each of the second lateral brackets is detachably connected to each of the connecting parts by bolts, and the second longitudinal bracket is used to install the light box.

6. A special vehicle whole vehicle solar radiation simulation test chamber according to claim 5, characterized in that: Each of the second transverse brackets is also commonly provided with a connecting bracket on a side away from the middle-layer aluminum profile, the connecting bracket is provided with a plurality of guide wheels, and a plurality of walking wheels are installed at the bottom of the bottom-layer aluminum profile.

7. A special vehicle solar radiation simulation test chamber according to claim 6, characterized in that: The two second transverse brackets located at both ends in the longitudinal direction are both provided with auxiliary support rods, the auxiliary support rods are provided with locking bolts, and the bottom aluminum profile is provided with a plurality of reserved holes matching the locking bolts.

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