Phase change concrete heat-conducting property and specific heat capacity testing device and method

Abstract

The invention relates to the technical field of phase change concrete testing, and discloses a phase change concrete heat-conducting property and specific heat capacity testing device and method, which solves the problem of poor testing effect, and comprises a vehicle body, a testing box is fixed at the top of the vehicle body, a water tank is fixed at the top of the vehicle body, and a heat insulation box is further fixed in the testing box. A plurality of clamping main rods are arranged in the heat insulation box, a clamping disc is arranged on the inner side of the top of each clamping main rod, positioning pipes are arranged on the tops of the clamping auxiliary rods at the left end and the right end, a positioning disc is fixed to the inner side of each positioning pipe, and an attaching rod is arranged outside each positioning disc; a temperature sensor and a heat flow sensor are arranged at the outer end of each close rod; the device can control the heating plate to heat clean water in the test box through the temperature controller, and can drive the connecting plate to rotate through the stirring motor so as to drive the stirring plate to rotate, so that the clean water in the test box is stirred, and the heating accuracy is ensured while the heating efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of phase change concrete testing, and particularly relates to a device and method for testing the thermal conductivity and specific heat capacity of phase change concrete. BACKGROUND

[0002] The phase change characteristics and structural characteristics are the most important characteristics of the phase change energy storage lightweight aggregate concrete different from other materials, and the two characteristics have important influences on the thermodynamic parameters of the phase change energy storage lightweight aggregate concrete.

[0003] However, the existing phase change concrete is directly placed in water for testing, which directly contacts each surface of the concrete with water, so that the testing accuracy is low, and the existing testing device can only measure one thermodynamic parameter of the concrete, so that the use range is small. SUMMARY

[0004] In view of the above problems, the application provides a device and method for testing the thermal conductivity and specific heat capacity of phase change concrete to overcome the defects of the prior art.

[0005] To achieve the above object, the application provides the following technical scheme: a device for testing the thermal conductivity and specific heat capacity of phase change concrete, comprising a vehicle body, a test box is fixed on the top of the vehicle body, a water tank is fixed on the top of the vehicle body, a water inlet pump is arranged at the left end of the water tank, a radiator is arranged at the right end of the water tank, a filter tank is arranged at the rear end of the radiator, a water outlet pump is arranged at the rear end of the filter tank, a heat-insulating concrete plate is fixed in the test box, two connecting plates are arranged in the test box, a heating plate is arranged on the inner side of each connecting plate, a heat-insulating tank is further fixed in the test box, two baffle plates are slidably connected in the heat-insulating tank, a plurality of clamping main rods are arranged in the heat-insulating tank, a clamping auxiliary rod is fixed on the outer side of each clamping main rod, a clamping disc is arranged on the inner side of the top of each clamping auxiliary rod, a positioning tube is arranged on the top of each clamping auxiliary rod, a positioning disc is fixed on the inner side of each positioning tube, a close-to-rod is arranged on the outer side of each positioning disc, a close-to-block is rotatably connected to the outer end of each close-to-rod, a clamping rod is fixed on the inner side of each close-to-block, a fixed plate is tightly attached to the inner side of each clamping rod, an internal temperature sensor is fixed on the top of each fixed plate, and a heat flow sensor is fixed on the inner side of each internal temperature sensor.

[0006] Preferably, the top of the car body is fixed with a controller, the left end of the controller is fixed with a power supply, the rear end of the controller is fixed with a handrail, the bottom of the car body is fixed with a plurality of support pipes, the bottom of each support pipe is fixed with a stabilizing block, the inside of each support pipe is provided with a support rod fixedly connected with the car body, and the bottom of each support rod is rotatably connected with a universal wheel.

[0007] Preferably, the top of the car body is provided with a water inlet pipe, the water inlet pipe is fixedly connected with the water tank, the rear end of the water inlet pipe is fixedly connected with the test box at the right end of the heat-insulating concrete plate, the rear end of the water inlet pipe is fixedly connected with the test box at the left end of the heat-insulating concrete plate through a cooling pipe, the water inlet pump is fixedly connected with the water inlet pipe, the rear end of the water inlet pump is fixed with a water inlet main valve, the water inlet pipe is also fixed with a water inlet auxiliary valve, the cooling pipe is fixed with a cooling valve, the left end of the water tank is fixed with a water outlet auxiliary valve, the left end of the water outlet auxiliary valve is fixedly connected with the test box through a water outlet pipe, the radiator is fixedly connected with the water outlet pipe, the rear end of the radiator is provided with a flow meter, the inside of the filter box is slidably connected with a filter plate, the rear end of the filter box is fixed with a water outlet main valve, and the water outlet pump is fixedly connected with the water outlet pipe.

[0008] Preferably, the left and right ends of the heat-insulating concrete plate are both provided with external temperature sensors fixedly connected with the test box, the top of the test box is tightly connected with a test box door, the test box and the test box door are externally fixed with heat preservation plates, the inner surfaces of the left and right sides of the test box are both fixed with stirring motors, each stirring motor is fixedly connected with the connecting plate on its inner side, each connecting plate is internally fixed with a temperature controller, each temperature controller is fixedly connected with the heating plate on its inner side, and each heating plate is externally provided with a plurality of stirring plates fixedly connected with the connecting plate.

[0009] Preferably, the left end of the heat-insulating concrete plate is provided with a sealing cavity, the right end of the sealing cavity is tightly fitted with a sealing plate, the top of the sealing plate is fixed with a sealing rod, and the top of the sealing rod is fixedly connected with the heat-insulating concrete plate through a fixing plate.

[0010] Preferably, the left end of the heat-insulating concrete plate and the left end of the test box are both provided with positioning rails, each positioning rail is slidably connected with a positioning block in the inside, each positioning block is internally fixed with a sealing block, each sealing block is slidably connected with the track on the heat-insulating tank and the heat-insulating tank top plate, each positioning block is fixedly connected with a moving rod at the top, each moving rod is fixedly connected with a positioning plate at the top, the left end positioning plate is fixedly connected with the test box, the right end positioning plate is fixedly connected with the heat-insulating concrete plate, and the top of the heat-insulating tank is tightly connected with a heat-insulating tank top plate.

[0011] Preferably, the heat insulation box is internally provided with phase change concrete blocks closely attached to the clamping main rod, each clamping auxiliary rod is fixed with a clamping block at the top, the inner side of the clamping block at the front and rear ends is fixed with a clamping rod, each clamping rod is fixedly connected with the clamping disc on the inner side, the clamping disc at the left and right ends is closely attached to the baffle on the inner side, and the clamping disc at the left and right ends is further fixed with a clamping camera at the top.

[0012] Preferably, each positioning disc is provided with a reversing rail, a plurality of reversing heads are slidably connected inside the reversing rail, each reversing head is fixedly provided with a reversing block outside, each reversing block is rotatably connected with the close-to rod inside, each close-to rod is fixedly provided with a close-to camera, each close-to camera is fixedly provided with a close-to motor outside, each close-to motor is rotatably connected with the close-to block at one end, each clamping rod is fixedly provided with a clamping plate at both ends, and each clamping rod is fixedly provided with a pressure sensor inside.

[0013] Preferably, each close-to rod is fixedly provided with a reversing strip at one end close to the positioning pipe, each reversing strip is provided with a reversing plate outside at the other end, each reversing plate is fixedly provided with a reversing motor outside the outer end, each reversing motor is rotatably connected with the reversing strip at one end, each reversing plate is fixedly provided with a hinged rod at one end close to the positioning pipe, each hinged rod is slidably connected with a hinged ring outside, each hinged ring is fixedly provided with a sliding rod inside, each sliding rod is fixedly provided with a sliding block inside, each sliding block is slidably connected with a sliding groove outside, each sliding groove is fixedly provided with a sliding disc through a sliding plate, each sliding disc is fixedly provided with a reversing rod outside the outer end, and each reversing rod is fixedly connected with the clamping block outside the outer end.

[0014] The application further provides a phase change concrete heat conductivity and specific heat capacity testing method, which is based on the phase change concrete heat conductivity and specific heat capacity testing device. Step one: when the device is used, the staff moves the whole device to the required position through the handrails, further shrinks the supporting rods to make the stabilizing blocks closely attached to the ground, so as to ensure the stability of the whole device, further opens the testing box door and the heat insulation box top plate, further places the phase change concrete blocks with completed weighing on the top of the clamping main rod in the way that the interval between the left and right sides is the smallest, further installs the required size of the baffle according to the size of the phase change concrete block and the outer surface size of the clamping main rod, at this time, the staff fixes the internal temperature sensor and the heat flow sensor on the fixed plate, further places the fixed plate on the inner side of the clamping rod, at this time, the controller controls the clamping rod to shrink, so that the clamping plate clamps the fixed plate; Step two: the controller controls the clamping main rod and clamping auxiliary rod to make the clamping disc close to the outer surface of the phase change concrete block and be in the center of the surface, and further through the extension of the close rod to drive the fixed plate to move to the required position, and further through the extension of the reversing rod to drive the close rod to rotate around the reversing block, and further through the rotation of the close block driven by the close motor to make the internal temperature sensor and heat flow sensor close to the phase change concrete block, so as to ensure the accuracy of the test; Step three: further workers close the heat insulation box top plate, and through the movement of the rod to make the sealing block close to the vehicle body, so as to ensure the sealing of the heat insulation box, at this time the workers lock the test box door through the bolt, so as to ensure the sealing of the whole device; Step five: when the specific heat capacity of the phase change concrete block needs to be tested, the controller controls the clean water in the water tank to fill the test box, at this time the controller controls the heating plate to heat, at this time the stirring motor can drive the stirring plate to rotate, so as to stir, so as to ensure the heating efficiency, at this time the right end of the heat insulation concrete plate can form a contrast experiment, so as to judge the heat loss of the whole device, so as to ensure the accuracy of the test, further when the temperature is heated to the first temperature, the controller controls the two sealing blocks to rise, so that the water enters the inside of the heat insulation box, so as to heat the phase change concrete block, when the temperature of the phase change concrete block remains stable, the controller controls the clean water to flow back to the water tank, further the controller controls the sealing block to close, further the controller controls the clean water in the water tank to enter the test box again, at this time the controller controls the heating plate to heat the clean water to the second temperature, further open the sealing block again, when the internal temperature sensor and heat flow sensor outside the phase change concrete block are stable, stop working, so as to transmit the test data to the controller, further through the formula set by the controller, the specific heat capacity can be calculated; Step six: when the thermal conductivity needs to be tested, the controller controls the clean water in the water tank to the test tank, and further controls the whole device to heat the clean water in the test tank to the first temperature again, at this time the controller opens the right end sealing block while closing the left end sealing block, so that heat can only be transmitted from the right end to the left end, so as to heat the phase change concrete block, when the temperature of the phase change concrete block remains stable, the controller controls the left end sealing block to open, so that the water temperature of the left end of the phase change concrete block is at the first temperature, at this time the controller controls the left end sealing block to close, so that the left end of the phase change concrete block is maintained at the first temperature, and at the same time the controller controls the right end sealing block to open, at this time the controller controls the clean water in the test tank to flow back to the water tank, and further controls the right end sealing block to close, at this time the controller controls the clean water to enter the test tank again, at this time the controller controls the heating plate to heat the clean water in the test tank to the second temperature again, at this time the controller opens the right end sealing block, so that the right end of the phase change concrete block reaches the second temperature, while the left end of the phase change concrete block is at the first temperature, at this time the phase change concrete block can be heated again until the temperature of the phase change concrete block is stable, at this time the fixing plate and the internal temperature sensor transmit data to the controller, at this time the thermal conductivity can be calculated through the formula of the controller.

[0015] Compared with the prior art, the beneficial effects of the present application are: The device can pump the clean water in the water tank out through the cooperation of the water inlet pump and the water inlet main valve, and can deliver the clean water to the test tank through the cooperation of the water inlet auxiliary valve and the cooling valve, the water outlet pump and the water outlet main valve can pump the clean water in the test tank out, and further the filter plate in the filter tank can filter the clean water, and further the flow meter can monitor the flow of the clean water flowing out of the filter tank, so as to judge whether the filter plate is blocked, and further the radiator can cool the clean water, and then the clean water is returned to the water tank through the water outlet auxiliary valve, so as to realize the reuse of the clean water, thereby saving resources, and the heat loss in the test tank can be prevented through the heat preservation plate, so as to ensure the accuracy of the test and the test effect; The device can control the heating plate to heat the clean water in the test tank through the temperature controller, and the stirring motor can drive the connecting plate to rotate, thereby driving the stirring plate to rotate, so as to stir the clean water in the test tank, thereby improving the heating efficiency and ensuring the heating accuracy, thereby further ensuring the test effect, the baffle is used to isolate the clean water at the left and right ends of the phase change concrete block, so as to prevent the clean water at the left and right ends of the phase change concrete block from being connected, thereby ensuring the accuracy of the test, and the positioning block can be lifted through the moving rod, thereby lifting the sealing block, so that the clean water can reach the heat insulation tank as required, thereby enabling one device to test the specific heat capacity and the thermal conductivity, thereby improving the use range of the whole device; The device can drive the clamping rod to move by the close-to-rod extension, so as to change the positions of the internal temperature sensor and the heat flow sensor, thereby ensuring the accuracy of the test, and the close-to-motor can drive the close-to-block to rotate, so that the fixed plate can reverse, and the internal temperature sensor and the heat flow sensor can be tightly attached to the surface of the phase change concrete block by rotating the close-to-rod around the reversing block, thereby ensuring the accuracy of the test and the test effect. The device can drive the clamping rod to move by the close-to-rod extension, so as to change the positions of the internal temperature sensor and the heat flow sensor, thereby ensuring the accuracy of the test, and the close-to-motor can drive the close-to-block to rotate, so that the fixed plate can reverse, and the internal temperature sensor and the heat flow sensor can be tightly attached to the surface of the phase change concrete block by rotating the close-to-rod around the reversing block, thereby ensuring the accuracy of the test and the test effect. The device can drive the clamping rod to move by the close-to-rod extension, so as to change the positions of the internal temperature sensor and the heat flow sensor, thereby ensuring the accuracy of the test, and the close-to-motor can drive the close-to-block to rotate, so that the fixed plate can reverse, and the internal temperature sensor and the heat flow sensor can be tightly attached to the surface of the phase change concrete block by rotating the close-to-rod around the reversing block, thereby ensuring the accuracy of the test and the test effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are included to provide a further understanding of the application, and constitute a part of the specification, together with the embodiments of the application, to explain the application, and do not constitute a limitation on the application.

[0017] In the drawings: Figure 1 It is a schematic diagram of the whole device; Figure 2 It is a schematic diagram of the whole device; Figure 3 It is a schematic diagram of the support pipe inside the device; Figure 4 It is a schematic diagram of the test box inside the device; Figure 5 It is a schematic diagram of the water tank outside the device; Figure 6 It is a schematic diagram of the filter box inside the device; Figure 7 It is a schematic diagram of the stirring plate of the device; Figure 8 It is a schematic diagram of the heat insulation box inside the device; Figure 9 It is a schematic diagram of the stirring motor inside the device; Figure 10 It is a schematic diagram of the heat insulation box inside the device; Figure 11The schematic diagram of the clamping main rod top of the device; Figure 12 The schematic diagram of the clamping auxiliary rod inside of the device; Figure 13 The schematic diagram of the clamping camera inside of the device; Figure 14 The schematic diagram of the close-to-rod outer end of the device; Figure 15 The schematic diagram of the clamping rod inside of the device; Figure 16 The schematic diagram of the positioning tube inside of the device; Figure 17 The schematic diagram of the positioning disc of the device; Figure 18 The schematic diagram of the positioning tube cross-section of the device.

[0018] In the figure: 1-vehicle body; 2-water tank; 3-external temperature sensor; 4-insulation tank top plate; 5-phase change concrete block; 6-insulation concrete plate; 7-close-to-rod; 8-positioning tube; 9-fixing plate; 101-supporting tube; 102-stabilizing block; 103-heat preservation plate; 104-test tank; 105-test tank door; 106-controller; 107-power supply; 108-handrail; 109-castor; 110-supporting rod; 201-water inlet pump; 202-radiator; 203-filtration tank; 204-water outlet pump; 205-water inlet pipe; 206-cooling pipe; 207-water outlet pipe; 208-water inlet main valve; 209-cooling valve; 210-water inlet auxiliary valve; 211-water outlet main valve; 212-flow meter; 213-water outlet auxiliary valve; 214-filtration plate; 301-stirring motor; 302-stirring plate; 303-heating plate; 304-connecting plate; 305-temperature controller; 401-insulation tank; 402-positioning plate; 403-moving rod; 404-positioning rail; 405-positioning block; 406-sealing block; 407-baffle; 501-clamping main rod; 502-clamping auxiliary rod; 503-clamping disc; 504-clamping rod; 505-clamping block; 506-clamping camera; 601-sealing plate; 602-sealing rod; 603-sealing cavity; 701-reversing strip; 702-reversing block; 703-reversing head; 704-reversing rail; 705-reversing motor; 706-reversing plate; 707-hinge ring; 708-sliding rod; 709-sliding block; 710-hinge rod; 801-positioning disc; 802-reversing rod; 803-sliding plate; 804-sliding groove; 805-sliding disc; 901-internal temperature sensor; 902-heat flow sensor; 903-clamping rod; 904-clamping plate; 905-pressure sensor; 906-close-to-block; 907-close-to-motor; 908-close-to-camera. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of the present application.

[0020] Embodiment one, by Figures 1-2 , Figure 4 , Figures 8-9 , Figure 11 , Figures 13-14 , Figure 17The utility model discloses a kind of heat conduction performance and specific heat capacity testing devices of phase change concrete, including vehicle body 1, the vehicle body 1 is made of alloy material, the vehicle body 1 is used to support entire device, test box 104 is fixed on the top of the vehicle body 1, the test box 104 is made of alloy material, the test box 104 is convenient for test, water tank 2 is fixed on the top of the vehicle body 1, the water tank 2 is used to contain required clean water, the water tank 2 left end is equipped with water inlet pump 201, the water inlet pump 201 is used to extract clean water inside the water tank 2, the water tank 2 right end is equipped with radiator 202, the radiator 202 is used for heat dissipation, the rear end of radiator 202 is equipped with filter box 203, the filter box 203 is used to filter clean water inside the test box 104, the rear end of filter box 203 is equipped with water outlet pump 204, water outlet pump 204 and water outlet main valve 211 cooperation can extract clean water inside the test box 104, heat insulation concrete slab 6 is fixed in the test box 104, the heat insulation concrete slab 6 is made of concrete material, the surface of heat insulation concrete slab 6 is heat insulation treatment, the test box 104 is equipped with two connecting plates 304, the connecting plate 304 is used to position stirring plate 302, the inside of each connecting plate 304 is equipped with heating plate 303, the heating plate 303 is used to heat clean water inside the test box 104, the test box 104 is also fixed with heat insulation box 401, the heat insulation box 401 is made of concrete material, the surface of heat insulation box 401 is heat insulation treatment, the inside of heat insulation box 401 is slidably connected with two baffles 407, the baffle 407 is prefabricated according to the outer diameter of phase change concrete block 5 and clamping main rod 501 in advance, the baffle 407 is made of copper material, the baffle 407 is used to isolate clean water at the left and right ends of phase change concrete block 5, the inside of heat insulation box 401 is equipped with a plurality of clamping main rods 501, the clamping main rod 501 is telescopic, so as to drive clamping auxiliary rod 502 to move, so as to adapt to different sizes of phase change concrete block 5, the outside of each clamping main rod 501 is fixed with clamping auxiliary rod 502, the clamping auxiliary rod 502 is telescopic, so as to adapt to different heights of phase change concrete block 5, the top inside of each clamping auxiliary rod 502 is equipped with clamping disc 503, the clamping disc 503 is made of rubber material, the clamping disc 503 is used to position phase change concrete block 5, the top of left and right clamping auxiliary rods 502 is equipped with positioning tube 8, the positioning tube 8 is made of alloy material, the positioning tube 8 is used to position positioning disc 801, the inside of each positioning tube 8 is fixed with positioning disc 801, the positioning disc 801 is made of alloy material, the positioning disc 801 is used to position reversing head 703, the outside of each positioning disc 801 is equipped with close-to-rod 7, the close-to-rod 7 is telescopic, so as to drive clamping rod 903 to move, the outside of each close-to-rod 7 is rotatably connected with close-to-block 906, the close-to-block 906 is made of alloy material,The close-fitting blocks 906 are used for positioning the clamping rods 903, each of the close-fitting blocks 906 is fixed with a clamping rod 903 inside, the clamping rod 903 is telescopic, so as to drive the clamping plate 904 to move, each of the clamping rods 903 is closely fitted with a fixed plate 9 inside, the fixed plate 9 is made of alloy material, the fixed plate 9 is used for positioning the internal temperature sensor 901 and the heat flow sensor 902, each of the fixed plates 9 is fixed with an internal temperature sensor 901 at the top, the internal temperature sensor 901 is used for monitoring the temperature of the surface of the phase change concrete block 5, each of the internal temperature sensors 901 is fixed with a heat flow sensor 902 inside, the heat flow sensor 902 is used for monitoring the heat loss amount of the surface of the phase change concrete block 5, all the electrified parts inside the test box 104 are waterproofed.

[0021] In the second embodiment, on the basis of the first embodiment, Figure 3 , Figures 5-6The controller 106 is fixed on the top of the car body 1, and is used to control the whole device. The power supply 107 is fixed on the left end of the controller 106, and provides the required power for the whole device. The handrail 108 is fixed on the rear end of the controller 106, and facilitates the movement of the whole device. The supporting pipes 101 are fixed on the bottom of the car body 1, and are made of alloy material. The supporting pipes 101 are used to support the car body 1. The stabilizing blocks 102 are fixed on the bottom of each supporting pipe 101, and are made of alloy material. The stabilizing blocks 102 can ensure the stability of the whole device. The supporting rods 110 are arranged in each supporting pipe 101, and are fixedly connected with the car body 1. The supporting rods 110 are telescopic, so that the universal wheels 109 can be lifted, thereby facilitating the movement of the whole device. The universal wheels 109 are rotatably connected with the bottom of each supporting rod 110, and facilitate the movement of the whole device. The water inlet pipe 205 is arranged on the top of the car body 1, and is used to output clean water. The water inlet pipe 205 is fixedly connected with the water tank 2. The water inlet pipe 205 is fixedly connected with the test box 104 at the right end of the heat-insulating concrete plate 6. The water inlet pipe 205 is fixedly connected with the test box 104 at the left end of the heat-insulating concrete plate 6 through the cooling pipe 206. The water inlet pump 201 is fixedly connected with the water inlet pipe 205. The water inlet pump 201 is fixedly connected with the water inlet main valve 208. The water inlet pump 201 and the water inlet main valve 208 cooperate to pump the clean water in the water tank 2. The water inlet auxiliary valve 210 is further fixed on the water inlet pipe 205. The water inlet auxiliary valve 210 can control the clean water to reach the right end of the heat-insulating concrete plate 6. The cooling valve 209 is fixed on the cooling pipe 206. The cooling valve 209 can control the clean water to reach the left end of the heat-insulating concrete plate 6. The water outlet auxiliary valve 213 is fixed on the left end of the water tank 2. The water outlet auxiliary valve 213 can control the clean water in the radiator 202 to flow back to the water tank 2. The water outlet auxiliary valve 213 is fixedly connected with the test box 104 through the water outlet pipe 207. The radiator 202 is fixedly connected with the water outlet pipe 207. The flow meter 212 is arranged on the rear end of the radiator 202. The flow meter 212 is used to monitor the flow of the clean water flowing out of the filter box 203, so as to determine whether the filter plate 214 is blocked. The filter plate 214 is slidably connected in the filter box 203. The filter plate 214 is used to filter the clean water in the filter box 203. The water outlet main valve 211 is fixed on the rear end of the filter box 203. The water outlet pump 204 is fixedly connected with the water outlet pipe 207. The water outlet pump 204 and the water outlet main valve 211 cooperate to discharge the clean water in the test box 104 into the filter box 203. The external temperature sensors 3 are arranged on the left and right ends of the heat-insulating concrete plate 6, and are fixedly connected with the test box 104.The external temperature sensor 3 is used for monitoring the water temperature inside the test box 104, so as to ensure the accuracy of the test, the test box door 105 is fixedly connected on the top of the test box 104, the test box door 105 can ensure the sealing of the test box 104, the heat preservation plate 103 is fixed outside the test box 104 and the test box door 105, the heat preservation plate 103 is made of rubber material, the heat preservation plate 103 can prevent the heat loss inside the test box 104, so as to ensure the accuracy of the test, the stirring motor 301 is fixed on the inner surface of the left and right sides of the test box 104, the stirring motor 301 can drive the connecting plate 304 to rotate, the stirring motor 301 is fixedly connected with the connecting plate 304 on the inner side of the stirring motor 301, the temperature controller 305 is fixed on the inner side of the connecting plate 304, the temperature controller 305 can control the working of the heating plate 303, the temperature controller 305 is fixedly connected with the heating plate 303 on the inner side of the temperature controller 305, a plurality of stirring plates 302 are arranged outside the heating plate 303 and fixedly connected with the connecting plate 304, the stirring plate 302 is made of alloy material, the stirring plate 302 is used for stirring the clean water, so as to improve the heating efficiency and ensure the heating accuracy, so as to further ensure the test effect, the sealing cavity 603 is arranged at the bottom of the left end of the heat insulation concrete plate 6, the sealing cavity 603 is used for connecting the left and right ends of the heat insulation concrete plate 6, so as to facilitate drainage, the sealing plate 601 is tightly combined with the right end of the sealing cavity 603, the sealing plate 601 is made of heat insulation material, the sealing plate 601 can ensure the sealing of the sealing cavity 603, the sealing rod 602 is fixed on the top of the sealing plate 601, the sealing rod 602 is telescopic, so as to drive the sealing plate 601 to ascend and descend, the sealing rod 602 is fixedly connected with the heat insulation concrete plate 6 through the fixed plate on the top of the sealing rod 602, In use of the device, the staff moves the whole device to the desired position through the handrails 108, further the controller 106 controls the support rod 110 to retract so that the stabilizing blocks 102 are in close contact with the ground, thereby ensuring the stability of the whole device, further the staff opens the test box door 105, and opens the heat insulation box top plate 4, further the staff places the weighed finished phase change concrete blocks 5 on the top of the clamping main rod 501 in the way that the left and right sides have the minimum interval, further the staff installs the baffle 407 of the required size according to the size of the phase change concrete block 5 and the outer surface size of the clamping main rod 501, at this time the staff fixes the internal temperature sensor 901 and the heat flow sensor 902 on the fixing plate 9, further places the fixing plate 9 inside the clamping rod 903, at this time the controller 106 controls the clamping rod 903 to retract, so that the clamping plate 904 clamps the fixing plate 9, further the controller 106 controls the clamping main rod 501 and the clamping auxiliary rod 502 to cooperate so that the clamping disc 503 is in close contact with the outer surface of the phase change concrete block 5, and the clamping disc 503 is located at the center of the surface, Further, the staff closes the heat insulation box top plate 4, and makes the sealing block 406 in close contact with the vehicle body 1 through the moving rod 403, thereby ensuring the sealing performance of the heat insulation box 401, at this time the staff locks the test box door 105 through the bolt, thereby ensuring the sealing of the whole device, when it is needed to add water to the inside of the test box 104, the controller 106 controls the water inlet pump 201 and the water inlet main valve 208 to cooperate to pump out the clean water inside the water tank 2, further by opening the cooling valve 209 and the water inlet auxiliary valve 210, the clean water can enter the inside of the test box 104, when the test box 104 is filled with clean water, the support pipe 101 controls the sealing rod 602 to extend, thereby driving the sealing plate 601 to descend, so that the sealing cavity 603 is sealed, thereby enabling the left and right ends of the heat insulation concrete plate 6 to form a contrast, so as to determine the heat loss of the whole device, thereby ensuring the accuracy of the test, when it is needed to heat the clean water inside the test box 104, the controller 106 controls the temperature controller 305 to work, thereby driving the heating plate 303 to work, at this time the water temperature can be monitored through the external temperature sensor 3, further the controller 106 controls the stirring motor 301 to rotate, thereby driving the connecting plate 304 to rotate, thereby driving the stirring plate 302 to rotate, thereby stirring the clean water, thereby improving the heating efficiency.

[0022] Example three, on the basis of example one, Figure 7 , Figure 10 , Figure 12 , Figures 15-16 , Figure 18The left end of the heat insulation concrete plate 6 and the left end of the test box 104 are provided with positioning rails 404, which are used for positioning the positioning blocks 405. The positioning blocks 405 are made of alloy material and are slidably connected inside the positioning rails 404. The positioning blocks 405 are used for positioning the sealing blocks 406. The sealing blocks 406 are made of concrete material and are fixed inside each positioning block 405. The sealing blocks 406 can ensure the sealing of the heat insulation box 401. Each sealing block 406 is slidably connected with the track on the heat insulation box 401 and the heat insulation box top plate 4. Each positioning block 405 is fixed with a movable rod 403 at the top. The movable rod 403 is telescopic, so that the sealing block 406 can be lifted. Each movable rod 403 is fixed with a positioning plate 402 at the top. The positioning plate 402 is made of alloy material and is used for positioning the movable rod 403. The left end of the positioning plate 402 is fixedly connected with the test box 104, and the right end of the positioning plate 402 is fixedly connected with the heat insulation concrete plate 6. The heat insulation box 401 is fixedly connected with a heat insulation box top plate 4 at the top. The heat insulation box top plate 4 is made of concrete material and is subjected to heat insulation treatment. The heat insulation box 401 is provided with phase change concrete blocks 5 which are closely attached to the clamping main rods 501. Each clamping auxiliary rod 502 is fixed with a clamping block 505 at the top. The clamping block 505 is made of alloy material and is used for positioning the clamping rods 504 at the front and back ends and the positioning tubes 8 at the left and right ends. The clamping block 505 is fixed with a clamping rod 504 at the inside of the front and back ends. The clamping rod 504 is made of alloy material and is used for positioning the clamping discs 503 at the front and back ends. Each clamping rod 504 is fixedly connected with the clamping disc 503 at the inside. The clamping discs 503 at the left and right ends are closely attached with the baffles 407 at the inside. The clamping auxiliary rods 502 at the left and right ends are further fixed with clamping cameras 506 at the top. The clamping cameras 506 are used for monitoring the position of the close-to-rod 7. The clamping discs 503 at the left and right ends are fixedly connected with the positioning discs 801 at the outside. The positioning discs 801 are used for positioning the clamping discs 503 at the inside. Each positioning disc 801 is provided with a reversing rail 704 which is used for positioning the reversing head 703. The reversing rail 704 is slidably connected with a plurality of reversing heads 703 at the inside. The reversing head 703 is made of alloy material and is used for positioning the reversing block 702. Each reversing head 703 is fixed with a reversing block 702 at the outside. The reversing block 702 is made of alloy material and is used for positioning the close-to-rod 7. Each reversing block 702 is rotatably connected with the close-to-rod 7 at the inside.Each of the close-to-rod 7 is fixed with close-to-camera 908, the close-to-camera 908 is used for monitoring the position of the fixed plate 9, each of the close-to-camera 908 outside is fixed with close-to-motor 907, the close-to-motor 907 can drive the close-to-block 906 rotation, each of the close-to-motor 907 and its one end of the close-to-block 906 rotation connection, each of the clamping rod 903 both ends is fixed with clamping plate 904, the clamping plate 904 is made of alloy material, the clamping plate 904 is used for clamping the fixed plate 9, each of the clamping rod 903 inside is fixed with pressure sensor 905, the pressure sensor 905 is used for monitoring the pressure of the fixed plate 9, so as to ensure that the internal temperature sensor 901 and the heat flow sensor 902 and the phase change concrete block 5 are closely attached, so as to ensure the accuracy of the test, each of the close-to-rod 7 is close to the positioning pipe 8 one end is fixed with the reversing strip 701, the reversing strip 701 is made of alloy material, the reversing strip 701 is used for positioning the close-to-rod 7, each of the reversing strip 701 the other end outside is equipped with reversing plate 706, the reversing plate 706 is used for positioning the reversing motor 705, each of the reversing plate 706 outer end is fixed with reversing motor 705, the reversing motor 705 can drive the reversing strip 701 rotation, each of the reversing motor 705 and its one end of the reversing strip 701 rotation connection, each of the reversing plate 706 close to the positioning pipe 8 one end is fixed with hinged rod 710, the hinged rod 710 is made of alloy material, the hinged rod 710 is used for positioning the hinged ring 707, each of the hinged rod 710 outside is slidably connected with hinged ring 707, the hinged ring 707 ensures the stability of the hinged rod 710 rotation, each of the hinged ring 707 inside is fixed with slide rod 708, the slide rod 708 is made of alloy material, the slide rod 708 is used for positioning the hinged ring 707, each of the slide rod 708 inside is fixed with sliding block 709, the sliding block 709 is used for positioning the slide rod 708, each of the sliding block 709 outside is slidably connected with sliding groove 804, the sliding groove 804 facilitates the sliding block 709 movement, each of the sliding groove 804 is fixed with sliding disc 805 through slide plate 803, the sliding disc 805 is made of alloy material, the sliding disc 805 is used for positioning the slide plate 803, each of the sliding disc 805 outer end is fixed with reversing rod 802, each of the reversing rod 802 and its outer end of the clamping block 505 fixed connection. In the test of specific heat capacity, the heat flow sensor 902 is used to record the heat flow per unit area in the phase change concrete block 5 during the heating process φ (t), the internal temperature sensor 901 is used to record the temperature of the test piece surface before and after heating Tinit 、 Tend , so the specific heat capacity can be calculated according to the following formula.

[0023]

[0024] wherein, φ (t) is the heat flux, ; represents the increase in energy per unit area of the test piece during the temperature rise, ; and respectively represent the time at the start and end of the temperature rise, s; A represents the area of the heated surface of the test piece, ; m represents the mass of the test piece in the dry state, kg; and respectively represent the temperature of the test piece at the start and end of the test, °C; In the test for the thermal conductivity, the heat flux φ and the temperature of the left and right surfaces of the test piece , of the phase change concrete block 5 is measured, and the heat exchange amount through the test piece is measured by the change in the water temperature recorded in real time. The thermal conductivity of the test piece can be calculated from the following equation.

[0025]

[0026] wherein, represents the average value of the heat flux through the surface of the test piece, ; d represents the thickness of the test piece, m; , represents the temperature difference of the left and right surfaces of the test piece, °C; When the phase change concrete block 5 is fixed by the clamping disc 503, the controller 106 controls the extension and retraction of the close-to-rod 7, so as to drive the fixed plate 9 to move, so that the fixed plate 9 reaches the required position, and further the controller 106 controls the extension and retraction of the reversing rod 802, so as to drive the close-to-rod 7 to rotate around the reversing block 702, at this time, the close-to-rod 7 can be conveniently rotated due to the effect of the sliding groove 804 and the sliding rod 708, and further the close-to-rod 7 can be driven to rotate by the close-to-motor 907, so that the internal temperature sensor 901 and the heat flow sensor 902 are tightly attached to the phase change concrete block 5, so as to ensure the accuracy of the test, and at the same time, the controller 106 controls the working of the reversing motor 705, so as to drive the reversing strip 701 to rotate, thereby further ensuring the accuracy of the position of the internal temperature sensor 901 and the heat flow sensor 902, at this time, the stability of the reversing strip 701 during rotation can be ensured due to the effect of the reversing head 703 and the reversing rail 704, when it is needed to test the specific heat capacity of the phase change concrete block 5, the controller 106 controls the clean water in the water tank 2 to fill the test box 104, at this time, the controller 106 controls the heating plate 303 to heat, at this time, the stirring plate 302 can be driven to rotate by the stirring motor 301, so as to stir, thereby ensuring the heating efficiency, at this time, the right end of the heat insulation concrete plate 6 can form a contrast experiment, so as to judge the heat loss of the whole device, thereby ensuring the accuracy of the test, further, when the temperature is heated to a first temperature, the controller 106 controls two sealing blocks 406 to rise, so that water enters the heat insulation box 401, thereby heating the phase change concrete block 5, when the temperature of the phase change concrete block 5 remains stable, the controller 106 controls the clean water to flow back to the water tank 2, further, the controller 106 controls the sealing block 406 to close, further, the controller 106 controls the clean water in the water tank 2 to enter the test box 104 again, at this time, the controller 106 controls the heating plate 303 to heat the clean water to a second temperature, further, the sealing block 406 is opened again, when the internal temperature sensor 901 and the heat flow sensor 902 outside the phase change concrete block 5 are stable, the test data is transmitted to the controller 106, further, the specific heat capacity can be calculated by the formula set by the controller 106.When the thermal conductivity needs to be tested, the controller 106 controls the clean water inside the water tank 2 to enter the inside of the test tank 104, and further the controller 106 controls the entire device to heat the clean water inside the test tank 104 to the first temperature again, at this time the controller 106 opens the right end sealing block 406 while closing the left end sealing block 406, so that heat can only be transmitted from the right end to the left end, thereby heating the phase change concrete block 5, when the temperature of the phase change concrete block 5 remains stable, the controller 106 controls the left end sealing block 406 to open, so that the water temperature at the left end of the phase change concrete block 5 is at the first temperature, at this time the controller 106 controls the left end sealing block 406 to close, so that the left end of the phase change concrete block 5 is maintained at the first temperature, and at the same time the controller 106 controls the right end sealing block 406 to open, at this time the controller 106 controls the clean water inside the heat insulation tank 401 at the right end and the test tank 104 to flow back to the water tank 2, and further the controller 106 controls the right end sealing block 406 to close, at this time the controller 106 controls the clean water to enter the inside of the test tank 104 again, at this time the controller 106 controls the heating plate 303 to heat the clean water inside the test tank 104 to the second temperature again, at this time the controller 106 opens the right end sealing block 406, so that the right end of the phase change concrete block 5 reaches the second temperature, while the left end of the phase change concrete block 5 is at the first temperature, at this time the phase change concrete block 5 can be heated again until the temperature of the phase change concrete block 5 stabilizes, at this time the fixed plate 9 and the internal temperature sensor 901 transmit data to the controller 106, at this time the thermal conductivity can be calculated by the formula of the controller 106.

[0027] The phase change concrete thermal conductivity and specific heat capacity testing method of the embodiment is based on the phase change concrete thermal conductivity and specific heat capacity testing device as described above, and includes the following steps: Step one: when using the device, the staff moves the entire device to the desired position through the handrail 108, further shrinks the supporting rod 110 to make the stabilizing block 102 close to the ground, thereby ensuring the stability of the entire device, further the staff opens the test tank door 105, and opens the heat insulation tank top plate 4, further the staff places the weighed phase change concrete block 5 on the top of the clamping main rod 501 according to the smallest interval between the left and right sides, further the staff installs the required size of the baffle 407 according to the size of the phase change concrete block 5 and the outer surface size of the clamping main rod 501, at this time the staff fixes the internal temperature sensor 901 and the heat flow sensor 902 on the fixed plate 9, further places the fixed plate 9 inside the clamping rod 903, at this time the controller 106 controls the clamping rod 903 to contract, so that the clamping plate 904 clamps the fixed plate 9; Step two: the controller 106 controls the clamping main rod 501 and the clamping auxiliary rod 502 to cooperate so that the clamping disc 503 is in close contact with the outer surface of the phase change concrete block 5 and is located at the center of the surface. Further, the close-to-rod 7 is extended and retracted to drive the fixed plate 9 to move to the desired position. Further, the controller 106 controls the reversing rod 802 to extend and retract to drive the close-to-rod 7 to rotate around the reversing block 702. Further, the close-to-motor 907 drives the close-to-block 906 to rotate to make the internal temperature sensor 901 and the heat flow sensor 902 close to the phase change concrete block 5, thereby ensuring the accuracy of the test; Step three: further, the worker closes the heat insulation box top plate 4, and moves the rod 403 to make the sealing block 406 close to the vehicle body 1, thereby ensuring the sealing of the heat insulation box 401. At this time, the worker locks the test box door 105 by screw, thereby ensuring the sealing of the entire device; Step five: when it is necessary to test the specific heat capacity of the phase change concrete block 5, the controller 106 controls the clean water in the water tank 2 to fill the test box 104. At this time, the controller 106 controls the heating plate 303 to heat. At this time, the stirring motor 301 drives the stirring plate 302 to rotate to stir, thereby ensuring the heating efficiency. At this time, the right end of the heat insulation concrete plate 6 can form a contrast experiment, thereby judging the heat loss of the entire device, thereby ensuring the accuracy of the test. Further, when the temperature is heated to the first temperature, the controller 106 controls the two sealing blocks 406 to rise, thereby making the water enter the inside of the heat insulation box 401 to heat the phase change concrete block 5. When the temperature of the phase change concrete block 5 remains stable, the controller 106 controls the clean water to flow back to the water tank 2. Further, the controller 106 controls the sealing block 406 to close. Further, the controller 106 controls the clean water in the water tank 2 to enter the inside of the test box 104 again. At this time, the controller 106 controls the heating plate 303 to heat the clean water to the second temperature. Further, the sealing block 406 is opened again. When the internal temperature sensor 901 and the heat flow sensor 902 outside the phase change concrete block 5 are stable, the work is stopped, thereby transmitting the test data to the controller 106. Further, the specific heat capacity can be calculated by the formula set by the controller 106; Step six: when the thermal conductivity needs to be tested, the controller 106 controls the clean water in the water tank 2 to enter the test tank 104, and the controller 106 further controls the entire device to heat the clean water in the test tank 104 to the first temperature again, at this time the controller 106 opens the right end sealing block 406 while closing the left end sealing block 406, so that heat can only be transmitted from the right end to the left end, thereby heating the phase change concrete block 5, when the temperature of the phase change concrete block 5 remains stable, the controller 106 controls the left end sealing block 406 to open, so that the water temperature at the left end of the phase change concrete block 5 is at the first temperature, at this time the controller 106 controls the left end sealing block 406 to close, so that the left end of the phase change concrete block 5 is maintained at the first temperature, and at the same time the controller 106 controls the right end sealing block 406 to open, at this time the controller 106 controls the clean water in the test tank 104 to flow back to the water tank 2, and the controller 106 further controls the right end sealing block 406 to close, at this time the controller 106 controls the clean water to enter the test tank 104 again, at this time the controller 106 controls the heating plate 303 to heat the clean water in the test tank 104 to the second temperature again, at this time the controller 106 opens the right end sealing block 406, so that the right end of the phase change concrete block 5 reaches the second temperature, while the left end of the phase change concrete block 5 is at the first temperature, at this time the phase change concrete block 5 can be heated again until the temperature of the phase change concrete block 5 stabilizes, at this time the fixed plate 9 and the internal temperature sensor 901 transmit data to the controller 106, at this time the thermal conductivity can be calculated by the formula of the controller 106.

[0028] It is to be understood that the terms such as first and second, and the like, can merely be used to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0029] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the following claims and their equivalents.

Claims

1. A device for testing the thermal conductivity and specific heat capacity of phase change concrete, characterized in that: Including the car body (1), the car body (1) top is fixed with test box (104), the car body (1) top is fixed with water tank (2), the water tank (2) left end is equipped with water inlet pump (201), the water tank (2) right end is equipped with radiator (202), the radiator (202) rear end is equipped with filter box (203), the filter box (203) rear end is equipped with water outlet pump (204), the test box (104) inside is fixed with heat insulation concrete board (6), the test box (104) inside is equipped with two connecting plates (304), every connecting plate (304) inboard is equipped with heating plate (303), the test box (104) inside is also fixed with heat insulation box (401), the heat insulation box (401) inside is slidably connected with two baffle (407), the heat insulation box (401) inside is equipped with a plurality of clamping main rod (501), every clamping main rod (501) outside is fixed with clamping auxiliary rod (502), every clamping auxiliary rod (502) top inboard is equipped with clamping disc (503), left and right two ends clamping auxiliary rod (502) top is equipped with positioning pipe (8), every positioning pipe (8) inboard is fixed with positioning disc (801), every positioning disc (801) outside is equipped with close-to-rod (7), every close-to-rod (7) outer end is rotatably connected with close-to-block (906), every close-to-block (906) inboard is fixed with clamping rod (903), every clamping rod (903) inboard is closely attached with fixed plate (9), every fixed plate (9) top is fixed with internal temperature sensor (901), every internal temperature sensor (901) inboard is fixed with heat flow sensor (902).

2. The device for testing the thermal conductivity and specific heat capacity of phase change concrete according to claim 1, characterized in that: The car body (1) top is fixed with controller (106), the controller (106) left end is fixed with power supply (107), the controller (106) rear end is fixed with handrail (108), the car body (1) bottom is fixed with a plurality of support pipes (101), every support pipe (101) bottom is fixed with stabilizing block (102), every support pipe (101) inside is equipped with support rod (110) and is fixedly connected with the car body (1), every support rod (110) bottom is rotatably connected with universal wheel (109).

3. The device for testing the thermal conductivity and the specific heat capacity of phase change concrete according to claim 2, characterized in that: The top of the vehicle body (1) is provided with an inlet pipe (205), the inlet pipe (205) is fixedly connected with the water tank (2), the rear end of the inlet pipe (205) is fixedly connected with the test box (104) at the right end of the heat insulation concrete slab (6), the rear end of the inlet pipe (205) is fixedly connected with the test box (104) at the left end of the heat insulation concrete slab (6) through a cooling pipe (206), the inlet pump (201) is fixedly connected with the inlet pipe (205), the rear end of the inlet pump (201) is fixedly provided with an inlet main valve (208), the inlet pipe (205) is further fixedly provided with an inlet auxiliary valve (210), the cooling pipe (206) is fixedly provided with a cooling valve (209), the left end of the water tank (2) is fixedly provided with an outlet auxiliary valve (213), the outlet auxiliary valve (213) is fixedly connected with the test box (104) through an outlet pipe (207), the radiator (202) is fixedly connected with the outlet pipe (207), the rear end of the radiator (202) is provided with a flow meter (212), the filter box (203) is internally slidably connected with a filter plate (214), the rear end of the filter box (203) is fixedly provided with an outlet main valve (211), and the outlet pump (204) is fixedly connected with the outlet pipe (207).

4. The device for testing the thermal conductivity and the specific heat capacity of the phase change concrete according to claim 3, characterized in that: The heat insulation concrete slab (6) is provided with an external temperature sensor (3) at the left and right ends and is fixedly connected with the test box (104), the top of the test box (104) is tightly connected with a test box door (105), the test box (104) and the test box door (105) are externally fixedly provided with an insulation board (103), the inner surfaces of the left and right sides of the test box (104) are fixedly provided with stirring motors (301), each stirring motor (301) is fixedly connected with the connecting plate (304) on the inner side thereof, each connecting plate (304) is fixedly provided with a temperature controller (305) on the inner side thereof, each temperature controller (305) is fixedly connected with the heating plate (303) on the inner side thereof, and each heating plate (303) is externally provided with a plurality of stirring plates (302) and is fixedly connected with the connecting plate (304).

5. The device for testing the thermal conductivity and the specific heat capacity of phase change concrete according to claim 4, characterized in that: The left end of the heat insulation concrete slab (6) is provided with a sealed cavity (603), the right end of the sealed cavity (603) is tightly fitted with a sealing plate (601), the top of the sealing plate (601) is fixedly provided with a sealing rod (602), and the top of the sealing rod (602) is fixedly connected with the heat insulation concrete slab (6) through a fixing plate.

6. The device for testing the thermal conductivity and the specific heat capacity of phase change concrete according to claim 5, characterized in that: The left end of the heat insulation concrete plate (6) and the left end of the test box (104) are provided with positioning rails (404), the inside of each positioning rail (404) is slidably connected with a positioning block (405), the inside of each positioning block (405) is fixedly connected with a sealing block (406), each sealing block (406) is slidably connected with the track on the heat insulation box (401) and the heat insulation box top plate (4), the top of each positioning block (405) is fixedly connected with a moving rod (403), the top of each moving rod (403) is fixedly connected with a positioning plate (402), the left positioning plate (402) is fixedly connected with the test box (104), the right positioning plate (402) is fixedly connected with the heat insulation concrete plate (6), and the top of the heat insulation box (401) is fixedly connected with a heat insulation box top plate (4).

7. The device for testing the thermal conductivity and the specific heat capacity of phase change concrete according to claim 6, characterized in that: The inside of the heat insulation box (401) is provided with phase change concrete blocks (5) which are closely attached to the clamping main rods (501), the top of each clamping auxiliary rod (502) is fixedly connected with a clamping block (505), the inside of the clamping blocks (505) at the front and back ends is fixedly connected with clamping rods (504), each clamping rod (504) is fixedly connected with the clamping disc (503) inside it, the clamping discs (503) at the left and right ends are closely attached to the baffles (407) inside them, and the clamping auxiliary rods (502) at the left and right ends are also fixedly connected with clamping cameras (506) at the top.

8. The device for testing thermal conductivity and specific heat capacity of phase change concrete according to claim 7, characterized in that: Each positioning disc (801) is provided with a reversing rail (704), the inside of the reversing rail (704) is slidably connected with a plurality of reversing heads (703), the outside of each reversing head (703) is fixedly connected with a reversing block (702), each reversing block (702) is rotatably connected with the close-to-rod (7) inside it, each close-to-rod (7) is fixedly connected with a close-to-camera (908), each close-to-camera (908) is fixedly connected with a close-to-motor (907) outside it, each close-to-motor (907) is rotatably connected with the close-to-block (906) at one end, each clamping rod (903) is fixedly connected with clamping plates (904) at both ends, and each clamping rod (903) is fixedly connected with a pressure sensor (905) inside it.

9. The device for testing thermal conductivity and specific heat capacity of phase change concrete according to claim 8, characterized in that: Each of the close-to-rod (7) is fixed with a reversing strip (701) near one end of the positioning tube (8), the other end of each of the reversing strip (701) is provided with a reversing plate (706), the outer end of each of the reversing plate (706) is fixed with a reversing motor (705), each of the reversing motor (705) is rotatably connected with the reversing strip (701) at one end thereof, the one end of each of the reversing plate (706) near the positioning tube (8) is fixed with a hinged rod (710), the outer part of each of the hinged rod (710) is slidably connected with a hinged ring (707), the inner side of each of the hinged ring (707) is fixed with a sliding rod (708), the inner side of each of the sliding rod (708) is fixed with a sliding block (709), the outer part of each of the sliding block (709) is slidably connected with a sliding groove (804), each of the sliding groove (804) is fixed with a sliding disc (805) through a sliding plate (803), the outer end of each of the sliding disc (805) is fixed with a reversing rod (802), each of the reversing rod (802) is fixedly connected with the clamping block (505) at the outer end thereof.

10. A method for testing the thermal conductivity and specific heat capacity of phase change concrete, based on the testing device for testing the thermal conductivity and specific heat capacity of phase change concrete according to any one of claims 1-9, characterized in that: The method comprises the following steps: Step one: when using the device, the staff moves the whole device to the desired position through the handrail (108), further shrinks the supporting rod (110) to make the stabilizing block (102) close to the ground, thereby ensuring the stability of the whole device, further opens the test box door (105) and the heat insulation box top plate (4), further places the weighed phase change concrete block (5) on the clamping main rod (501) top according to the minimum interval between the left and right sides, further installs the required size of the baffle (407) according to the size of the phase change concrete block (5) and the outer surface size of the clamping main rod (501), at this time the staff fixes the internal temperature sensor (901) and the heat flow sensor (902) on the fixing plate (9), further places the fixing plate (9) on the inner side of the clamping rod (903), at this time the controller (106) controls the clamping rod (903) to shrink, thereby clamping the fixing plate (9) with the clamping plate (904); Step two: the controller (106) controls the clamping main rod (501) and the clamping auxiliary rod (502) to cooperate to make the clamping disc (503) close to the outer surface of the phase change concrete block (5) and make the clamping disc (503) located at the center of the surface, further stretches and shrinks the close-to-rod (7) to drive the fixing plate (9) to move, thereby making the fixing plate (9) reach the required position, further the controller (106) controls the reversing rod (802) to stretch and shrink to drive the close-to-rod (7) to rotate around the reversing block (702), further drives the close-to-block (906) to rotate through the close-to-motor (907) to make the internal temperature sensor (901) and the heat flow sensor (902) close to the phase change concrete block (5), thereby ensuring the accuracy of the test; Step three: further workers close the heat insulation box top plate (4), and can be made by moving the block (406) and the car body (1) close, so as to ensure the sealing of the heat insulation box (401), at this time the workers through bolt locking test box door (105), so as to ensure the sealing of the whole device; Step five: when the need to test the specific heat capacity of phase change concrete block (5), the controller (106) control water tank (2) inside the clear water filled test box (104), at this time the controller (106) control heating plate (303) heating, at this time through the stirring motor (301) can drive the stirring plate (302) rotation, so as to stir, so as to ensure the heating efficiency, at this time due to the right end of the heat insulation concrete plate (6) can form a contrast experiment, so as to judge the heat loss of the whole device, so as to ensure the accuracy of the test, further when the temperature heating to the first temperature, the controller (106) control two sealing block (406) rising, so that the water into the heat insulation box (401) inside, so as to heat phase change concrete block (5), when the temperature of phase change concrete block (5) stable, the controller (106) control clear water back to the water tank (2), further controller (106) control sealing block (406) close, further controller (106) control water tank (2) inside the clear water again to the test box (104) inside, at this time the controller (106) control heating plate (303) heating clear water to the second temperature, further open the sealing block (406) again, when the phase change concrete block (5) outside the internal temperature sensor (901) and heat flow sensor (902) stable, stop working, so as to transmit the test data to the controller (106), further through the controller (106) set formula can calculate the specific heat capacity; Step six: when the thermal conductivity needs to be tested, the controller (106) controls the clean water in the water tank (2) to reach the inside of the test box (104), and the controller (106) further controls the entire device to heat the clean water in the test box (104) to the first temperature again. At this time, the controller (106) opens the right end sealing block (406) while closing the left end sealing block (406), so that heat can only be transmitted from the right end to the left end, thereby heating the phase change concrete block (5). When the temperature of the phase change concrete block (5) remains stable, the controller (106) controls the left end sealing block (406) to open, so that the water temperature at the left end of the phase change concrete block (5) is at the first temperature. At this time, the controller (106) controls the left end sealing block (406) to close, so that the left end of the phase change concrete block (5) is maintained at the first temperature. At the same time, the controller (106) controls the right end sealing block (406) to open. At this time, the controller (106) controls the clean water in the inside of the heat insulation box (401) and the inside of the test box (104) to flow back to the water tank (2). Further, the controller (106) controls the right end sealing block (406) to close. At this time, the controller (106) controls the clean water to enter the inside of the test box (104) again. At this time, the controller (106) controls the heating plate (303) to heat the clean water in the test box (104) to the second temperature again. At this time, the controller (106) opens the right end sealing block (406), so that the right end of the phase change concrete block (5) reaches the second temperature, while the left end of the phase change concrete block (5) is at the first temperature. At this time, the phase change concrete block (5) can be heated again until the temperature of the phase change concrete block (5) stabilizes. At this time, the fixing plate (9) and the internal temperature sensor (901) transmit data to the controller (106). At this time, the thermal conductivity can be calculated through the formula of the controller (106).

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