A building energy-saving thermal insulation material thermal insulation performance detection device

By introducing a circulating microflow and lifting material loading mechanism into the thermal insulation performance testing device, the problem of uneven fluid contact was solved, and uniform liquid heat exchange on both sides of the thermal insulation material was achieved, thus improving the accuracy and efficiency of the test.

CN120870227BActive Publication Date: 2026-02-03SHANGHAI ZHONGCEHANG TESTING & CONSULTING OF ENG CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202511165274.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-08-20
Publication Date
2026-02-03
Estimated Expiration
2045-08-20

AI Technical Summary

Technical Problem

Existing testing devices for the thermal insulation performance of building energy-saving insulation materials suffer from uneven temperature distribution due to uneven contact between the fluid and the insulation material during the testing process, which affects the thermal conductivity and testing accuracy.

Method used

The system employs a low-temperature source box and a high-temperature source box, combined with a circulating outer sleeve, a support control mechanism, and a micro-flow actuator. The micro-flow actuator is driven by a drive mechanism to achieve micro-flow circulation of the liquid, ensuring uniform heat exchange of the liquid on both sides of the insulation material. The lifting and loading mechanism and the detection and pretreatment mechanism ensure smooth contact of the material surface.

Benefits of technology

This achieves uniform heat exchange between the liquids on both sides of the insulation material, improving the accuracy and efficiency of testing, reducing liquid disturbance, and ensuring the reliability of test results.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120870227B_ABST
    Figure CN120870227B_ABST
Patent Text Reader

Abstract

The application belongs to the technical field of building energy-saving material detection, and discloses a building energy-saving thermal insulation material thermal insulation performance detection device, which comprises a low-temperature source box and a high-temperature source box, and the low-temperature source box and the high-temperature source box both comprise an insulation cover and an inner frame fixedly embedded in the insulation cover, and the inside of the high-temperature source box is provided with a heating pipe. The liquid far away from the thermal insulation material block in the inner frame is circulated and transferred to the position close to the thermal insulation material block, and the fluidity of the liquid in the extrusion discharge area is matched, so that the liquid discharged near the thermal insulation material block is automatically guided and supplemented to the side far away from the thermal insulation material block after heat exchange, the circulation and guiding of the liquid in the inner frame are completed, the liquid heat exchange on both sides of the thermal insulation material block is uniform during detection, meanwhile, the liquid does not need to be disturbed greatly under the inner circulation mode, a small amount of rapid circulation suction and discharge are realized to realize the circulation flow under the micro-flow, the disturbance to the liquid is reduced, the circulation micro-flow is realized, and the detection effect is improved.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of building energy-saving material detection, and particularly relates to a building energy-saving thermal insulation material thermal insulation performance detection device. BACKGROUND

[0002] The building energy-saving thermal insulation material is a functional material (such as polystyrene foam, rock wool, aerogel, etc.) for reducing heat transfer of buildings and improving energy utilization efficiency, which maintains the indoor temperature stable by blocking heat conduction, convection and radiation, and the thermal insulation performance detection device is a device for measuring the thermal insulation performance of the material and verifying the thermal insulation capacity of the thermal insulation material.

[0003] In the prior art, the building energy-saving thermal insulation material thermal insulation performance detection device, in the detection process, usually cuts the material to be detected into blocks and places them in the detection area, combines the high-temperature source and the low-temperature source with a large temperature difference on both sides, contacts the high-temperature source and the low-temperature source with the thermal insulation material on both sides, and monitors the temperature of the high-temperature source and the low-temperature source area after a certain time, and judges the thermal insulation performance of the thermal insulation material by comparing the temperature difference again. However, in the actual detection process, the high-temperature source and the low-temperature source on both sides of the thermal insulation material are usually fluid, and the fluid in a certain volume is not uniformly contacted with the thermal insulation material during the heat conduction process. The temperature is not uniform in different areas during the heat conduction process, which affects the heat conduction efficiency in the actual detection process, prolongs the time required for heat conduction stabilization, and affects the detection of the thermal insulation performance. SUMMARY

[0004] The purpose of the present application is to provide a building energy-saving thermal insulation material thermal insulation performance detection device to solve the problems raised in the background art.

[0005] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: a building energy-saving thermal insulation material thermal insulation performance detection device, comprising a low-temperature source box and a high-temperature source box, the low-temperature source box and the high-temperature source box both comprising an insulation cover and an inner frame fixedly embedded in the insulation cover, a heating pipe is arranged in the high-temperature source box, symmetrically distributed intermediate frames are fixedly connected between the two insulation covers, a lifting material loading mechanism is arranged between the two intermediate frames, a sealing opening and closing member is movably sleeved on the front of the low-temperature source box and the high-temperature source box, a support control mechanism is fixedly arranged in the inner frame, a circulating external sleeve is fixedly arranged on the outer side of the support control mechanism, a micro-flow execution mechanism is rotatably arranged in the circulating external sleeve, a driving mechanism is arranged on the top of the insulation cover, and the driving mechanism controls the rotation of the micro-flow execution mechanism.

[0006] The micro-flow executing mechanism absorbs and transports the fluid from the side of the inner frame far away from the heat preservation material to the side close to the heat preservation material during the rotation by the support control mechanism, and the micro-flow executing mechanism comprises a rotating seat, an arc-shaped cavity opened on the outer side of the rotating seat, and an elastic arc plate elastically connected in the arc-shaped cavity.

[0007] Preferably, the end of the heat preservation cover and the inner frame is provided with a front opening, the front of the heat preservation cover is provided with an assembly cavity penetrating the inner frame, and the top of the heat preservation cover is provided with a positioning groove penetrating the bottom.

[0008] Preferably, the sealing opening and closing member comprises a sealing plate, a heat insulation plate and an electric push rod one, the bottom of the intermediate frame is fixedly provided with a bottom plate, the electric push rod one is fixed on the top of the bottom plate through a support, the movable end of the electric push rod one is fixedly connected with the two groups of sealing plates through a connecting frame, the heat insulation plate is fixedly nested on the front of the sealing plate, and the sealing plate is movably sleeved in the sleeving cavity and seals the front opening.

[0009] Preferably, the lifting and loading mechanism comprises a heat insulation block, a side plate, an electric push rod two and a connecting rod, the electric push rod two is fixed on the top of the bottom plate, the heat insulation block is divided into two parts and fixedly connected between the two groups of side plates, the connecting rod is fixed on the top of the side plate, and the movable end of the electric push rod two is fixedly connected with the connecting rod to control the heat insulation block to move up and down.

[0010] Preferably, the circulating external sleeve comprises a support sleeve, a suction inlet and a discharge outlet, the suction inlet and the discharge outlet are both opened on the outer surface of the support sleeve, the discharge outlet is close to and faces the front opening, the suction inlet is far away from the front opening, and the support sleeve is fixed in the inner frame through a bottom pipe sleeve.

[0011] Preferably, the support control mechanism comprises an intermediate sleeve, a center cavity, a suction pump, a bypass pipe, a suction cavity and a bypass cavity, the intermediate sleeve is fixed in the inner frame, the center cavity is opened in the inner part of the intermediate sleeve, the suction pump is located in the reserved cavity at the bottom of the intermediate sleeve, the suction end of the suction pump is communicated with the center cavity, the suction cavity and the bypass cavity are both opened on the outer surface of the intermediate sleeve, the bottom of the bypass cavity is communicated with the bypass pipe, the other end of the bypass cavity corresponds to the position of the discharge outlet, one end of the suction cavity is communicated with the center cavity, and the other end of the suction cavity corresponds to the position of the suction inlet.

[0012] Preferably, the micro-flow execution mechanism further comprises a sleeve cavity, a sleeve rod and a compensation elastic sheet, the compensation elastic sheet is fixedly embedded on the front surface of the elastic arc plate, the sleeve cavity is arranged in the inner part of the rotating base, the rotating base is sleeved on the outer side of the middle sleeve, one end of the sleeve rod is fixedly connected with the elastic arc plate, and the other end is movably sleeved in the sleeve cavity, and the sleeve cavity is in communication with the suction cavity and the bypass cavity during the rotation of the rotating base.

[0013] Preferably, the driving mechanism comprises a motor, a rotating sleeve and a cam, the rotating sleeve is movably sleeved in the inner frame, and the bottom of the rotating sleeve is fixedly connected with the rotating base, the output shaft of the motor penetrates through the heat preservation cover and is fixedly connected with the rotating sleeve, and the cam is fixedly sleeved on the outer side of the output shaft of the motor.

[0014] Preferably, the top of the heat preservation cover is slidably provided with a detection pretreatment mechanism, one side of the detection pretreatment mechanism is in communication with a communication control mechanism, the movable end of the communication control mechanism is matched with the driving mechanism, and the detection pretreatment mechanism reciprocates under the control of the communication control mechanism with the starting of the driving mechanism.

[0015] Preferably, the detection pretreatment mechanism comprises a movable plate, a cleaning block, a fixed block and a curved arm, the communication control mechanism comprises a lead-through sleeve, a communication sleeve, a pressing plate and a contact rod, the movable plate, the fixed block is fixed on both ends of the movable plate through a spring, the cleaning block is fixed on the back surface of the movable plate, the curved arm is fixed on the front surface of the movable plate, the lead-through sleeve is sleeved on the outer part of the curved arm, the communication sleeve is in communication with the lead-through sleeve, the pressing plate is elastically sleeved in the communication sleeve through a spring, one end of the contact rod penetrates through the communication sleeve and is fixedly connected with the pressing plate, and the other end of the contact rod is in contact with the cam.

[0016] The beneficial effects of the present application are as follows:

[0017] (1) The present application utilizes the circulating external sleeve, the support control mechanism and the micro-flow execution mechanism built in the high-temperature source box and the low-temperature source box, cooperates with the driving mechanism to drive the rotation of the micro-flow execution mechanism, controls the micro-flow execution mechanism to suck the liquid in the inner frame from one side in the rotating process, and extrudes and discharges when rotating close to the heat preservation material block, so that in the circulating rotation process, the liquid far away from the heat preservation material block in the inner frame is transferred to the side close to the heat preservation material block, cooperates with the flowability of the liquid in the extrusion and discharge area, and the discharged liquid near the heat preservation material block is automatically guided to the side far away from the heat preservation material block after heat exchange, completes the circulating flow guiding of the liquid in the inner frame, ensures the uniform heat exchange of the liquid on both sides of the heat preservation material block during detection, and simultaneously, under the internal circulation mode, the liquid does not need to be greatly disturbed, a small amount of rapid circulating suction and discharge are used to realize the circulating flow under the micro-flow, reduce the disturbance to the liquid, realize the circulating micro-flow, and improve the detection effect.

[0018] (2) The application utilizes the driving mechanism and the lifting material loading mechanism again, combines the detection pretreatment mechanism and the communication control mechanism arranged at the top of the heat preservation cover, and through the reciprocating control of the cam in the driving mechanism on the hydraulic change in the communication control mechanism, controls the reciprocating transverse movement of the detection pretreatment mechanism, and when the positioning and sleeving of the heat preservation material block before detection is carried out, gradually completes the polishing and cleaning of the two side surfaces of the heat preservation material block, removes the surface attachments, ensures the flatness of the contact surface, and further ensures the good contact between the two side surfaces of the heat preservation material block and the liquid, ensures that the detected is the actual heat insulation performance of the heat preservation material block itself, and further improves the detection accuracy of the heat preservation performance.

[0019] (3) The application utilizes the intermediate frame made of the lifting material loading mechanism and the heat insulation material, limits and seals the heat preservation material block to be detected in the fully heat preservation heat insulation environment during detection, cooperates with the front opening of the end of the heat preservation cover, and contacts the liquid with the side surface of the heat preservation material block, ensures the heat preservation and heat insulation of each surface of the heat preservation material block during the actual heat conduction treatment process, ensures the heat conduction treatment of the two surfaces of the heat preservation material block in contact with the liquid, avoids the heat conduction of other surfaces of the heat preservation material block to the environment, avoids the heat leakage interference, and improves the detection accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the application;

[0021] Figure 2 It is a sectional view schematic diagram of the application;

[0022] Figure 3 It is a sleeving schematic diagram of the circulating external sleeve and the driving mechanism of the application;

[0023] Figure 4 It is a sectional view schematic diagram of the circulating external sleeve and the driving mechanism of the application;

[0024] Figure 5 It is a schematic diagram of the heat preservation cover of the application;

[0025] Figure 6 It is a sectional view schematic diagram of the heat preservation cover and the support control mechanism of the application;

[0026] Figure 7 It is a schematic diagram of the intermediate sleeve of the application;

[0027] Figure 8 It is a sectional view schematic diagram of the micro-flow support mechanism and the circulating external sleeve of the application;

[0028] Figure 9 It is a schematic diagram of the micro-flow execution mechanism of the application;

[0029] Figure 10Fig. 1 is a schematic view of the sealing and opening and closing member of the present application and the lifting and loading mechanism;

[0030] Figure 11 Fig. 2 is a schematic view of the intermediate frame of the present application;

[0031] Figure 12 Fig. 3 is an exploded schematic view of the detection and pretreatment mechanism and the communication control mechanism of the present application.

[0032] In the figure: 1, heat preservation cover; 2, intermediate frame; 3, bottom plate; 4, inner frame; 5, sealing and opening and closing member; 51, sealing plate; 52, heat insulation plate; 53, electric push rod one; 6, lifting and loading mechanism; 61, heat insulation block; 62, side plate; 63, electric push rod two; 64, connecting rod; 7, circulating external sleeve; 71, support sleeve; 72, suction inlet; 73, discharge outlet; 8, support control mechanism; 81, intermediate sleeve; 82, central cavity; 83, suction pump; 84, bypass pipe; 85, suction cavity; 86, bypass cavity; 9, micro flow execution mechanism; 91, rotating seat; 92, arc cavity; 93, elastic arc plate; 94, sleeve cavity; 95, sleeve rod; 96, compensation elastic sheet; 10, driving mechanism; 101, motor; 102, rotating sleeve; 103, cam; 11, detection and pretreatment mechanism; 111, movable plate; 112, cleaning block; 113, fixed block; 114, curved arm; 12, communication control mechanism; 121, communication sleeve; 122, communication sleeve; 123, extrusion plate; 124, abutting rod; 13, front port; 14, positioning groove; 15, assembly cavity. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying 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. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0034] As Figures 1 to 12As shown, the building energy-saving thermal insulation material thermal insulation performance detection device provided by the embodiment of the present application comprises a low-temperature source box and a high-temperature source box, the low-temperature source box and the high-temperature source box each comprise a thermal insulation cover 1 and an inner frame 4 fixedly embedded in the thermal insulation cover 1, a temperature sensor is arranged in the inner frame 4, a heating pipe is arranged in the high-temperature source box, symmetrically distributed intermediate frames 2 are fixedly connected between the two thermal insulation covers 1, a lifting load mechanism 6 is arranged between the two intermediate frames 2, a sealing opening and closing member 5 is movably sleeved on the front of the low-temperature source box and the high-temperature source box, a support control mechanism 8 is fixedly arranged in the inner frame 4, a circulating external sleeve 7 is fixedly arranged on the outer side of the support control mechanism 8, a micro-flow execution mechanism 9 is rotatably arranged in the circulating external sleeve 7, a driving mechanism 10 is arranged on the top of the thermal insulation cover 1, the driving mechanism 10 controls the rotation of the micro-flow execution mechanism 9, the micro-flow execution mechanism 9 absorbs and transports fluid from the side of the inner frame 4 away from the thermal insulation material to the side close to the thermal insulation material in the rotation process through the support control mechanism 8, the micro-flow execution mechanism 9 comprises a rotating seat 91, an arc-shaped cavity 92 arranged on the outer side of the rotating seat 91, and an elastic arc plate 93 elastically connected in the arc-shaped cavity 92, the support control mechanism 8 controls the deformation of the elastic arc plate 93 to reduce the air pressure in the arc-shaped cavity 92 and suck in fluid, and the sucked fluid is released when the arc-shaped cavity 92 rotates to face the thermal insulation material.

[0035] Embodiment 1: normal temperature water is injected into the low-temperature source box and the high-temperature source box, and the heating pipe in the high-temperature source box is started to heat the liquid in the high-temperature source box to a stable high-temperature state, the temperature sensor in the inner frame 4 detects the internal temperature, and the thermal insulation cover 1 keeps the temperature in the low-temperature source box and the high-temperature source box stable, the two heat insulation blocks 61 in the lifting load mechanism 6 are kept above the thermal insulation cover 1, and the block of thermal insulation material to be detected is placed between the two groups of heat insulation blocks 61, the electric push rod two 63 is started to drive the to-be-detected material between the heat insulation blocks 61 to move downward to the inside of the intermediate frame 2, and at the same time the blocky to-be-detected material is embedded in the positioning groove 14 of the two groups of thermal insulation covers 1, the thermal insulation assembly is completed, the sealing opening and closing member 5 is started, the electric push rod one 53 drives the sealing plate 51 to slide outward in the assembly cavity 15, and the front opening 13 is opened, at this time the heating liquid and the normal temperature liquid in the two inner frames 4 respectively infiltrate on the two side surfaces of the block of thermal insulation material, the heat of the high-temperature area is guided to the low-temperature area through the thermal insulation material, and the liquid temperature in the high-temperature source box gradually decreases, while the liquid temperature in the low-temperature source box gradually increases, the temperature sensors in the two inner frames 4 keep monitoring the temperature, and finally the liquid temperature values on both sides are obtained after a specified time, the thermal insulation performance is calculated and evaluated by comparing the temperature difference and the time.

[0036] First, by utilizing the lifting and loading mechanism 6 and the intermediate frame 2 made of heat-insulating material, the insulation material block to be tested is confined and sealed in a fully insulated environment during testing. In conjunction with the front opening 13 at the end of the insulation cover 1, the liquid on both sides contacts the sides of the insulation material block. During the actual heat conduction process, the insulation of each side of the insulation material block is ensured, and the two sides of the insulation material block in contact with the liquid are heat-conducted. This prevents the other sides of the insulation material block from conducting heat to the environment, avoids heat leakage interference, and improves the accuracy of the test.

[0037] Example 2: During the thermal conductivity test of both sides of the insulation material, the suction pump 83 in the support control mechanism 8 is started, and the suction pump 83 draws air from the central cavity 82. At the same time, the drive mechanism 10 is started, and the motor 101 in the drive mechanism 10 drives the rotating sleeve 102 to rotate. The rotating sleeve 102 drives the rotating seat 91 fitted in the support outer sleeve 71 to rotate. When the arc-shaped cavity 92 on the outer side of the rotating seat 91 rotates to the suction port 72, the sleeve cavity 94 is connected to the suction cavity 85 of the support control mechanism 8. The suction pump 83 draws air from the sleeve cavity 94 through the suction cavity 85, reducing the internal air pressure, and drives the sleeve rod 95 to slide and stretch the elastic arc plate 93, so that the elastic arc plate 93 deforms in the arc cavity 92 and expands its capacity. The liquid on the outside is drawn in through the suction. The liquid is drawn into the storage chamber with the arc-shaped cavity 92 through the inlet 72. As the rotating seat 91 continues to rotate, the stored liquid rotates between the rotating seat 91 and the supporting outer sleeve 71 to the outlet 73. At this time, the socket 94 is connected to the bypass cavity 86. The ambient air is reintroduced into the socket 94 through the bypass pipe 84. The internal air pressure of the socket 94 is restored, the elastic arc plate 93 is elastically reset, and deforms and squeezes outward to actively discharge the liquid stored in the arc-shaped cavity 92 and discharge the liquid to the side close to the insulation material. As the above liquid is continuously and rapidly transported, the liquid in the area away from the insulation material block in the inner frame 4 is continuously guided towards the area close to the insulation material block, completing the internal liquid circulation microflow. During the thermal conductivity detection process, the liquid temperature in the inner frame 4 is uniform.

[0038] First, by utilizing the built-in circulating outer sleeve 7, support control mechanism 8, and micro-flow actuator 9 within the high-temperature and low-temperature source chambers, and in conjunction with the drive mechanism 10, the micro-flow actuator 9 is rotated. During rotation, the support control mechanism 8 controls the micro-flow actuator 9 to draw liquid from one side of the inner frame 4 and squeeze it out when it rotates near the insulation material block. Thus, during the cyclic rotation, the liquid in the inner frame 4 away from the insulation material block is circulated and transferred to the side near the insulation material block. Combined with the fluidity of the liquid in the squeezed-out area, the liquid discharged near the insulation material block is automatically guided to replenish the side away from the insulation material block after heat exchange, completing the circulation and guidance of the liquid in the inner frame. This ensures uniform heat exchange of the liquid on both sides of the insulation material block during testing. At the same time, this internal circulation method does not require significant disturbance to the liquid. Through small-volume and rapid cyclic intake and discharge, micro-flow is achieved, reducing disturbance to the liquid and improving the detection effect.

[0039] Example 3: After the insulation material block to be tested is placed, the insulation material block moves downward as the lifting and loading mechanism 6 moves it downward. The insulation material block is inserted into the positioning groove 14 along the top of the two sets of insulation covers 1. At the same time, the drive mechanism 10 is started. The drive mechanism 10 drives the internal cam 103 to rotate, so that the cam 103 pushes the abutment rod 124 in the connecting control mechanism 12. The abutment rod 124 compresses the hydraulic oil in the connecting sleeve 122, thereby controlling the hydraulic pressure change in the connecting sleeve 121. The hydraulic pressure changes back and forth, pushing the sleeved curved arm 114 and the movable plate 111 to move back and forth between the elastically connected fixed block 113. This causes the cleaning block 112 to rub back and forth along the two sides of the insulation material block to be tested. As the insulation material block moves downward, the friction treatment of the two sides is completed, removing the surface deposits and keeping the sides of the insulation material block flat.

[0040] First, by reusing the drive mechanism 10 and the lifting and loading mechanism 6, combined with the detection pretreatment mechanism and the communication control mechanism 12 set on the top of the insulation cover 1, during the positioning and fitting process before the insulation material block is detected, the cam in the drive mechanism 10 reciprocates to control the hydraulic changes in the communication control mechanism 12, thereby controlling the reciprocating lateral movement of the detection pretreatment mechanism 11. During the positioning and fitting of the insulation material block before detection, the grinding and cleaning of both sides of the insulation material block are gradually completed to remove surface attachments and ensure that the contact surface is flat. This ensures that the two sides of the insulation material block are in good contact with the liquid, ensuring that the detected thermal insulation performance is the actual thermal insulation performance of the insulation material block itself, thereby further improving the accuracy of the insulation performance detection.

[0041] Among them, the ends of the heat insulation outer cover 1 and the inner frame 4 are provided with front openings 13, the front of the heat insulation outer cover 1 is provided with an assembly cavity 15 that penetrates the inner frame 4, the top of the heat insulation outer cover 1 is provided with a positioning groove 14 that penetrates the bottom, the front opening 13, the assembly cavity 15 and the positioning groove 14 are connected to each other, the sealing opening and closing component 5 includes a sealing plate 51, a heat insulation plate 52 and an electric push rod 53, the bottom of the middle frame 2 is fixedly provided with a base plate 3, the electric push rod 53 is fixedly fixed to the top of the base plate 3 by a bracket, the movable end of the electric push rod 53 is fixedly connected to two sets of sealing plates 51 by a connecting frame, the heat insulation plate 52 is fixedly nested in the front of the sealing plate 51, and the sealing plate 51 is movably sleeved in the sleeve cavity 94 and seals the front opening 13.

[0042] By utilizing the front opening 13 when the sealing plate 51 is removed, the liquid can come into contact with the insulation material block sleeved in the positioning groove 14 through the front opening 13, thus completing the thermal conductivity and insulation performance test under contact. The insulation plate 52 remains insulated under the seal to prevent internal heat loss and maintain the temperature stability before the test.

[0043] The lifting and loading mechanism 6 includes a heat insulation block 61, a side plate 62, an electric push rod 63, and a connecting rod 64. The electric push rod 63 is fixed to the top of the base plate 3. The heat insulation block 61 is divided into upper and lower parts and is fixedly connected between the two sets of side plates 62. The connecting rod 64 is fixed to the top of the side plate 62. The movable end of the electric push rod 63 is fixedly connected to the connecting rod 64 to control the heat insulation block 61 to move up and down.

[0044] The lifting and loading mechanism 6 is used to assemble the insulation material block, and works with the upper and lower heat insulation blocks 61 and the middle frame 2 made of insulation material on both sides to achieve sealing and heat insulation of the non-heat-conducting area, prevent the insulation material block from conducting heat to the environment, and ensure the accuracy of the test.

[0045] The outer sleeve 7 includes a support sleeve 71, an inlet 72, and an outlet 73. Both the inlet 72 and outlet 73 are located on the outer surface of the support sleeve 71. The outlet 73 is close to and faces the front opening 13, while the inlet 72 is away from the front opening 13. The support sleeve 71 is fixed to the inner frame 4 via a bottom tube sleeve. The support control mechanism 8 includes an intermediate sleeve 81, a central cavity 82, a suction pump 83, a bypass pipe 84, an inlet cavity 85, and a bypass cavity 86. The intermediate sleeve 81 is fixed to the inner frame. In section 4, the central cavity 82 is opened inside the intermediate sleeve 81, the suction pump 83 is located in the reserved cavity at the bottom of the intermediate sleeve 81, and the suction end of the suction pump 83 is connected to the central cavity 82. The suction cavity 85 and the bypass cavity 86 are both opened on the outer surface of the intermediate sleeve 81. The bottom of the bypass cavity 86 is connected to the bypass pipe 84, and the other end of the bypass cavity 86 corresponds to the position of the discharge port 73. One end of the suction cavity 85 is connected to the central cavity 82, and the other end of the suction cavity 85 corresponds to the position of the suction port 72.

[0046] The outer sleeve 7 and the support control mechanism 8 form a rotation space for the micro-flow actuator, ensuring the connection of the micro-flow actuator 9. The bottom of the heat-insulating outer cover 1 is provided with a reserved groove that connects to the bottom of the intermediate sleeve 81, ensuring that the suction pump 83 discharges the suction air through the reserved groove and maintains air pressure balance. The support outer sleeve 71 and its bottom sleeve are both made of heat-insulating material to prevent heat from escaping through the support control mechanism 8.

[0047] The micro-flow actuator 9 also includes a socket 94, a sleeve rod 95, and a compensating elastic plate 96. The compensating elastic plate 96 is fixedly nested on the front side of the elastic arc plate 93. The socket 94 is arrayed inside the rotating seat 91. The rotating seat 91 is sleeved on the outside of the intermediate sleeve 81. One end of the sleeve rod 95 is fixedly connected to the elastic arc plate 93, and the other end is movably sleeved in the socket 94. The socket 94 is connected to the suction chamber 85 and the bypass chamber 86 respectively during the rotation of the rotating seat 91.

[0048] The micro-flow actuator 9 completes the cyclic intake and discharge by rotation, realizing the internal circulation of the liquid and ensuring uniform liquid temperature with minimal disturbance. When the elastic plate 96 is compressed in the closed area of ​​the arc cavity 92 by the deformation of the elastic arc plate 93, the elastic plate 96 adapts to the deformation, avoiding the difficulty of deformation of the elastic arc plate 93.

[0049] The drive mechanism 10 includes a motor 101, a rotating sleeve 102 and a cam 103. The rotating sleeve 102 is rotatably sleeved in the inner frame 4, and the bottom of the rotating sleeve 102 is fixedly connected to the rotating seat 91. The output shaft of the motor 101 passes through the heat insulation cover 1 and is fixedly connected to the rotating sleeve 102. The cam 103 is fixedly sleeved on the outside of the output shaft of the motor 101.

[0050] The drive mechanism 10 provides driving force, which on the one hand controls the rotation of the micro-flow actuator 9, and on the other hand reciprocates to squeeze the hydraulic oil inside the control mechanism.

[0051] The top of the insulation cover 1 is slidably equipped with a detection pretreatment mechanism 11. One side of the detection pretreatment mechanism 11 is connected to a communication control mechanism 12. The movable end of the communication control mechanism 12 cooperates with the drive mechanism 10. As the drive mechanism 10 is activated, the communication control mechanism 12 controls the reciprocating motion of the detection pretreatment mechanism 11. The detection pretreatment mechanism 11 includes a movable plate 111, a cleaning block 112, a fixed block 113, and a curved arm 114. The communication control mechanism 12 includes a guide sleeve 121, a connecting sleeve 122, a pressing plate 123, and an abutment. Rod 124, movable plate 111, and fixed block 113 are fixed to both ends of movable plate 111 by springs. Cleaning block 112 is fixed to the back of movable plate 111. Crank arm 114 is fixed to the front of movable plate 111. Conductor sleeve 121 is sleeved on the outside of crank arm 114. Connecting sleeve 122 is connected to conductor sleeve 121. Squeezing plate 123 is elastically sleeved in connecting sleeve 122 by springs. One end of abutting rod 124 moves through connecting sleeve 122 and is fixedly connected to squeezing plate 123. The other end of abutting rod 124 abuts against cam 103.

[0052] The cam 103 reciprocates to push the abutment rod 124 to move, thereby reciprocating to compress the hydraulic oil in the guide sleeve 121, thus controlling the reciprocating movement of the movable plate 111 to complete the dynamic grinding and cleaning process.

[0053] The working principle and usage process of this invention are as follows: Room temperature water is injected into both the low-temperature and high-temperature source chambers. The heating element in the high-temperature source chamber is activated, heating the liquid to a stable high temperature. The temperature sensor in the inner frame 4 detects the internal temperature, and the insulation cover 1 maintains a stable temperature in both the low-temperature and high-temperature source chambers. The two heat insulation blocks 61 in the lifting and loading mechanism 6 are positioned above the insulation cover 1. The insulation material block to be tested is placed between the two sets of heat insulation blocks 61. The electric push rod 63 is activated, moving the material to be tested between the heat insulation blocks 61 downwards into the interior of the middle frame 2. Simultaneously, the block-shaped material to be tested is nested in the positioning grooves 14 of the two sets of insulation covers 1, completing the insulation assembly. The sealing opening and closing component 5 is activated, and the electric push rod 53 drives the sealing plate 51 to slide outward along the assembly cavity 15, opening the front opening 13. At this time, the heating liquid and the room temperature liquid in the two sets of inner frames 4 are respectively immersed on both sides of the insulation material block. The heat in the high temperature area is directed to the low temperature area through the insulation material, and the liquid temperature in the high temperature source box gradually decreases, while the liquid temperature in the low temperature source box gradually increases. The temperature sensors in the two sets of inner frames 4 continuously monitor the temperature, and finally obtain the liquid temperature values ​​on both sides after a specified time. By comparing the temperature difference and time, the insulation performance is calculated and evaluated. When performing thermal conductivity detection on both sides of the insulation material, the suction pump 83 in the support control mechanism 8 is activated, and the suction pump 83... Air is drawn from the central cavity 82, and the drive mechanism 10 is activated simultaneously. The motor 101 in the drive mechanism 10 drives the rotating sleeve 102 to rotate, and the rotating sleeve 102 drives the rotating seat 91, which is fitted in the support sleeve 71, to rotate. When the arc-shaped cavity 92 on the outer side of the rotating seat 91 rotates to the suction port 72, the sleeve cavity 94 is connected to the suction cavity 85 of the support control mechanism 8. The suction pump 83 draws air from the sleeve cavity 94 through the suction cavity 85, reducing the internal air pressure, and drives the sleeve rod 95 to slide and stretch the elastic arc plate 93, so that the elastic arc plate 93 deforms in the arc cavity 92 and expands its capacity. The liquid on the outside is drawn into the storage chamber with the arc cavity 92 through the suction port 72. As the rotating seat 91 continues to rotate, the stored liquid rotates between the rotating seat 91 and the supporting outer sleeve 71 to the outlet 73. At this time, the socket 94 is connected to the bypass cavity 86. The ambient air is reintroduced into the socket 94 through the bypass pipe 84. The internal air pressure of the socket 94 is restored, the elastic arc plate 93 is elastically reset, deforms and squeezes outward, actively discharges the liquid stored in the arc cavity 92, and discharges the liquid to the side close to the insulation material. As the above liquid is continuously and rapidly transported, the liquid in the area away from the insulation material block in the inner frame 4 is continuously guided towards the area close to the insulation material block, completing the internal liquid circulation microflow. During the thermal conductivity detection process, the liquid temperature in the inner frame 4 is uniform.After the insulation material block to be tested is placed, the lifting and loading mechanism 6 moves the insulation material block downwards, and the insulation material block is inserted into the positioning groove 14 along the top of the two sets of insulation covers 1. At the same time, the drive mechanism 10 is activated, which drives the internal cam 103 to rotate, thereby causing the cam 103 to reciprocate to push the abutment rod 124 in the connecting control mechanism 12. This causes the abutment rod 124 to reciprocate to compress the hydraulic oil in the connecting sleeve 122, thereby controlling the hydraulic pressure change in the connecting sleeve 121. The reciprocating hydraulic pressure pushes the sleeved crank arm 114 and the movable plate 111 to reciprocate between the elastically connected fixed block 113, causing the cleaning block 112 to reciprocate to rub along both sides of the insulation material block to be tested. As the insulation material block moves downwards, the friction treatment on both sides is completed, removing surface deposits and keeping the sides of the insulation material block flat.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for testing the thermal insulation performance of building energy-saving thermal insulation materials, comprising a low-temperature source chamber and a high-temperature source chamber, both the low-temperature source chamber and the high-temperature source chamber comprising an insulation outer cover (1) and an inner frame (4) fixedly nested inside the insulation outer cover (1), wherein the high-temperature source chamber is provided with a heating pipe inside, characterized in that: A symmetrically distributed intermediate frame (2) is fixedly connected between the two insulation covers (1). A lifting and loading mechanism (6) is provided between the two intermediate frames (2). A sealing opening and closing part (5) is movably sleeved on the front of the low temperature source box and the high temperature source box. A support control mechanism (8) is fixedly provided inside the inner frame (4). A circulation outer sleeve (7) is fixedly provided on the outside of the support control mechanism (8). A micro-flow actuator (9) located inside the circulation outer sleeve (7) is rotatably provided on the outside of the support control mechanism (8). A driving mechanism (10) is provided on the top of the insulation cover (1). The driving mechanism (10) controls the micro-flow actuator (9) to rotate. The lifting and loading mechanism (6) includes a heat insulation block (61), a side plate (62), an electric push rod (63), and a connecting rod (64). The electric push rod (63) is fixed to the top of the base plate (3). The heat insulation block (61) is divided into upper and lower parts and is fixedly connected between the two sets of side plates (62). The connecting rod (64) is fixed to the top of the side plate (62). The movable end of the electric push rod (63) is fixedly connected to the connecting rod (64) to control the heat insulation block (61) to move up and down. The support control mechanism (8) includes an intermediate sleeve (81), a central cavity (82), a suction pump (83), a bypass pipe (84), a suction cavity (85), and a bypass cavity (86). The intermediate sleeve (81) is fixed in the inner frame (4). The central cavity (82) is opened inside the intermediate sleeve (81). The suction pump (83) is located in the reserved cavity at the bottom of the intermediate sleeve (81), and the suction end of the suction pump (83) is connected to the central cavity (82). The suction cavity (85) and the bypass cavity (86) are both opened on the outer surface of the intermediate sleeve (81). The bottom of the bypass cavity (86) is connected to the bypass pipe (84), and the other end of the bypass cavity (86) corresponds to the position of the outlet (73). One end of the suction cavity (85) is connected to the central cavity (82), and the other end of the suction cavity (85) corresponds to the position of the suction port (72). The microflow actuator (9) absorbs and transports fluid from the side of the inner frame (4) away from the insulation material to the side close to the insulation material during rotation via the support control mechanism (8). The microflow actuator (9) includes a rotating seat (91), an arc-shaped cavity (92) opened on the outside of the rotating seat (91), and an elastic arc plate (93) elastically connected in the arc-shaped cavity (92). The support control mechanism (8) controls the deformation of the elastic arc plate (93) to reduce the air pressure in the arc-shaped cavity (92) and draw in fluid, and releases the drawn-in fluid when the arc-shaped cavity (92) rotates toward the insulation material.

2. The device for testing the thermal insulation performance of building energy-saving thermal insulation materials according to claim 1, characterized in that: The ends of the heat insulation cover (1) and the inner frame (4) are provided with front openings (13), the front of the heat insulation cover (1) is provided with an assembly cavity (15) that penetrates the inner frame (4), the top of the heat insulation cover (1) is provided with a positioning groove (14) that penetrates the bottom, and the front opening (13), the assembly cavity (15) and the positioning groove (14) are connected to each other.

3. The device for testing the thermal insulation performance of building energy-saving insulation materials according to claim 2, characterized in that: The sealing opening and closing component (5) includes a sealing plate (51), a heat insulation plate (52), and an electric push rod (53). The bottom of the intermediate frame (2) is fixedly provided with a base plate (3). The electric push rod (53) is fixed to the top of the base plate (3) by a bracket. The movable end of the electric push rod (53) is fixedly connected to two sets of sealing plates (51) through a connecting frame. The heat insulation plate (52) is fixedly nested in the front of the sealing plate (51). The sealing plate (51) is movably sleeved in the sleeve cavity (94) and seals the front opening (13).

4. The device for testing the thermal insulation performance of building energy-saving thermal insulation materials according to claim 1, characterized in that: The circulating outer sleeve (7) includes a support outer sleeve (71), an inlet (72) and an outlet (73). The inlet (72) and the outlet (73) are both opened on the outer surface of the support outer sleeve (71). The outlet (73) is close to and faces the front opening (13). The inlet (72) is away from the front opening (13). The support outer sleeve (71) is fixed in the inner frame (4) by a bottom tube sleeve.

5. The device for testing the thermal insulation performance of building energy-saving insulation materials according to claim 1, characterized in that: The micro-flow actuator (9) further includes a socket (94), a sleeve (95), and a compensating elastic plate (96). The compensating elastic plate (96) is fixedly nested on the front of the elastic arc plate (93). The socket (94) is arrayed inside the rotating seat (91). The rotating seat (91) is sleeved on the outside of the intermediate sleeve (81). One end of the sleeve (95) is fixedly connected to the elastic arc plate (93), and the other end is movably sleeved in the socket (94). The socket (94) is connected to the suction chamber (85) and the bypass chamber (86) respectively during the rotation of the rotating seat (91).

6. The device for testing the thermal insulation performance of building energy-saving insulation materials according to claim 1, characterized in that: The drive mechanism (10) includes a motor (101), a rotating sleeve (102) and a cam (103). The rotating sleeve (102) is rotatably fitted in the inner frame (4), and the bottom of the rotating sleeve (102) is fixedly connected to the rotating seat (91). The output shaft of the motor (101) passes through the heat insulation cover (1) and is fixedly connected to the rotating sleeve (102). The cam (103) is fixedly fitted on the outside of the output shaft of the motor (101).

7. The device for testing the thermal insulation performance of building energy-saving thermal insulation materials according to claim 6, characterized in that: The top of the heat insulation cover (1) is provided with a detection pretreatment mechanism (11). One side of the detection pretreatment mechanism (11) is connected to a communication control mechanism (12). The movable end of the communication control mechanism (12) cooperates with the drive mechanism (10). As the drive mechanism (10) is started, the communication control mechanism (12) controls the reciprocating action of the detection pretreatment mechanism (11).

8. The device for testing the thermal insulation performance of building energy-saving insulation materials according to claim 7, characterized in that: The detection pretreatment mechanism (11) includes a movable plate (111), a cleaning block (112), a fixed block (113), and a crank arm (114). The communication control mechanism (12) includes a connecting sleeve (121), a connecting sleeve (122), a pressing plate (123), and a contact rod (124). The movable plate (111) and the fixed block (113) are fixed to both ends of the movable plate (111) by springs. The cleaning block (112) is fixed to the back of the movable plate (111). The crank arm (114) is fixed on the front of the movable plate (111), the guide sleeve (121) is sleeved on the outside of the crank arm (114), the connecting sleeve (122) is connected to the guide sleeve (121), the extrusion plate (123) is elastically sleeved in the connecting sleeve (122) by a spring, one end of the abutment rod (124) moves through the connecting sleeve (122) and is fixedly connected to the extrusion plate (123), and the other end of the abutment rod (124) abuts against the cam (103).

Citation Information

Patent Citations

  • Thermal conduction test equipment for building energy-saving detection

    CN117110371A

  • Thermal insulation material performance testing device

    CN119757459A