Adjustable vertical heat flow meter

Abstract

The utility model relates to an adjustable vertical heat flow meter, and relates to the technical field of heat flow meters. The device comprises a pedestal, a control system is arranged on the side wall of the pedestal, a heat source system and a thermal resistance type temperature sensor are arranged at the top of the pedestal, a sample placing table is arranged between the heat source system and the thermal resistance type temperature sensor, a mounting bracket is arranged at the top of the pedestal, and a camera device is arranged on the mounting bracket. The camera shooting device is used for detecting the placement standard degree of a sample, a driving cavity is formed in the top of the pedestal, a rotating part is arranged in the driving cavity, an output shaft of the rotating part is connected with the sample placement table, and the camera shooting device and the rotating part are both in communication connection with the control system. The heat flow meter has the effects of adjusting the relative position of the heat source and the sample in the heat flow meter and improving the measurement accuracy.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of heat flow meters, in particular to an adjustable vertical heat flow meter. BACKGROUND

[0002] A heat flow meter is an instrument for measuring the heat flow inside an object, and its working principle is based on the thermocouple principle and the heat conduction law. When in use, a sample to be tested is placed between two heat sources to form a heat flow field. By measuring the rate of heat transfer and the temperature difference on both sides of the sample, the heat conduction coefficient of the sample can be calculated. The heat flow meter in the prior art has the problem that the measurement accuracy is affected due to non-standard placement of the sample. Therefore, the application provides an adjustable vertical heat flow meter to solve the above problems. CONTENT OF THE UTILITY MODEL

[0003] In order to adjust the relative position of the heat source and the sample in the heat flow meter and improve the measurement accuracy, the application provides an adjustable vertical heat flow meter.

[0004] The application provides an adjustable vertical heat flow meter, which adopts the following technical scheme:

[0005] An adjustable vertical heat flow meter comprises a pedestal, a control system is arranged on the side wall of the pedestal, a heat source system and a thermal resistance temperature sensor are arranged on the top of the pedestal, a sample placement table is arranged between the heat source system and the thermal resistance temperature sensor, a mounting bracket is arranged on the top of the pedestal, a camera device is arranged on the mounting bracket and is used for detecting the placement standard of the sample, a driving cavity is formed in the top of the pedestal, a rotating member is arranged in the driving cavity, an output shaft of the rotating member is connected with the sample placement table, and the camera device and the rotating member are in communication connection with the control system.

[0006] By adopting the above technical scheme, when the sample to be detected is placed on the sample placement table, the camera device will take a photo of the sample, and the image result is sent to the control system. The control system judges the placement position of the sample. If the placement is not standard, the rotating member is started to drive the sample to be adjusted, so as to change the relative position of the sample, the heat source system and the thermal resistance temperature sensor, thereby improving the detection accuracy. If the placement is standard, the detection can be directly performed.

[0007] Optionally, a lifting groove is formed below the driving cavity, a lifting member is arranged in the lifting groove, a lifting disc is arranged on the piston rod of the lifting member, and the rotating member is mounted on the surface of the lifting disc.

[0008] By adopting the above technical scheme, when the whole to-be-detected sample is high, unstable or inconvenient to measure on the surface of the sample placing table, the sample placing table is lowered by the lifting piece, the sample part enters the lifting groove, the stability of the detection process is improved, and the applicability of the heat flow meter is improved.

[0009] Optionally, the pedestal comprises an outer shell and an inner pedestal, an installation cavity for the inner pedestal is formed in the inner shell, the diameter of the inner pedestal is smaller than the diameter of the installation cavity, the sample placing table is arranged on the top of the inner pedestal, a rotating piece is arranged at the bottom of the installation cavity, an output shaft of the rotating piece is connected with a rotating disc, at least two connecting shafts are arranged on the surface of the rotating disc, the inner pedestal is located between the connecting shafts, an installation ring is arranged at the end of the connecting shaft away from the rotating disc, the heat source system and the thermal resistance temperature sensor are arranged on the surface of the installation ring, and the rotating piece is in communication connection with the control system.

[0010] By adopting the above technical scheme, when the volume of the to-be-detected sample is too large to be inconvenient to adjust, the heat source system and the thermal resistance temperature sensor can be adjusted by the rotating piece, so that accurate measurement of the sample is achieved, and the applicability of the heat flow meter is further improved.

[0011] Optionally, a sliding ring groove is formed in the inner bottom wall of the installation cavity, and a plurality of balls are arranged in the sliding ring groove.

[0012] By adopting the above technical scheme, the balls help to reduce the resistance between the rotating disc and the bottom wall of the installation cavity during rotation, and also help to keep the balance of the rotating disc as a whole.

[0013] Optionally, a maintenance door is arranged on the side wall of the outer shell, and the maintenance door is in communication with the inside of the installation cavity.

[0014] By adopting the above technical scheme, the maintenance door facilitates the regular maintenance and repair of the structure inside the installation cavity, helps to prolong the service life of the heat flow meter, and has high convenience and practicality.

[0015] Optionally, two heat preservation covers are slidably connected to the top of the outer shell, and the heat source system, the thermal resistance temperature sensor and the sample placing table are located between the two heat preservation covers.

[0016] By adopting the above technical scheme, the heat preservation covers can reduce heat loss during measurement, so as to improve the accuracy of the detection result.

[0017] Optionally, the heat preservation covers are driven by air cylinders.

[0018] By adopting the technical scheme, the cylinder is adopted for driving, the opening and closing efficiency of the heat preservation cover can be effectively improved, and automatic operation is realized.

[0019] Optionally, the sample placement table surface is provided with anti-skid lines.

[0020] By adopting the technical scheme, the probability of sample slipping on the sample placement table surface can be effectively reduced, and the stability of the detection process and the accuracy of the detection result are improved.

[0021] In summary, the present application has at least one of the following beneficial technical effects:

[0022] 1. When the sample to be detected is placed on the sample placement table, the camera device will take a picture of the sample, and the image result will be sent to the control system. The control system will judge the placement position of the sample. If the placement is not standard, the rotating part will be started to drive the sample to adjust and change the relative position of the sample and the heat source system and the thermal resistance type temperature sensor, so as to improve the detection accuracy. If the placement is standard, the detection can be directly performed;

[0023] 2. When the volume of the sample to be detected is too large to be adjusted by rotation, the heat source system and the thermal resistance type temperature sensor can be adjusted by rotation by the rotating part, so as to achieve the effect of accurate measurement of the sample, and the applicability of the heat flow meter of the present application is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structure schematic view of an adjustable vertical heat flow meter in the embodiment of the present application.

[0025] Figure 2 is a sectional view of the pedestal in the embodiment of the present application.

[0026] Figure 3 is a structure schematic view of the top end of the pedestal in the embodiment of the present application.

[0027] Marked: 1, pedestal; 11, shell; 111, mounting cavity; 112, rotating part; 113, rotating disc; 114, connecting shaft; 115, mounting ring; 116, sliding ring groove; 117, ball; 118, access door; 12, built-in table body; 121, driving cavity; 122, rotating part; 123, lifting groove; 124, lifting part; 125, lifting disc; 2, control system; 3, heat source system; 4, thermal resistance type temperature sensor; 5, sample placement table; 51, anti-skid line; 6, mounting bracket; 61, camera device; 7, heat preservation cover. DETAILED DESCRIPTION

[0028] The following will be described in detail in combination with the accompanying Figures 1-3 The present application will be further described in detail.

[0029] The embodiment of the present application discloses an adjustable vertical heat flow meter. Figure 1 and Figure 2 , including pedestal 1, pedestal 1 includes shell 11 and built-in table body 12, shell 11 is provided with mounting cavity 111 for built-in table body 12, in the embodiment, the cross section of mounting cavity 111 is circular, the cross section of built-in table body 12 is also circular, and the diameter of mounting cavity 111 is greater than the diameter of built-in table body 12.

[0030] Referring to Figure 1 and Figure 2 , the bottom wall of mounting cavity 111 is slotted, and rotating part 112 is arranged in the slot, in the embodiment, rotating part 112 adopts a motor, the output shaft of rotating part 112 is vertically arranged, the output shaft end of rotating part 112 is coaxially provided with rotating disc 113, sliding ring groove 116 is arranged on the inner wall bottom wall of mounting cavity 111, sliding ring groove 116 is located below rotating disc 113, a plurality of ball bearings 117 are arranged in sliding ring groove 116, ball bearings 117 abut between the bottom wall of rotating disc 113 and the bottom wall of sliding ring groove 116, so as to reduce the abrasion between rotating disc 113 and the bottom wall of mounting cavity 111 when rotating disc 113 rotates; control system 2 is arranged on the outer wall of shell 11, rotating part 112 is in communication connection with control system 2, and control system 2 adopts a PLC controller.

[0031] Referring to Figure 1 and Figure 2 , at least two connecting shafts 114 are arranged on the surface of rotating disc 113, connecting shafts 114 are vertically arranged, mounting ring 115 is connected to the end, away from rotating disc 113, of connecting shafts 114, heat source system 3 and thermal resistance type temperature sensor 4 are arranged on the surface of mounting ring 115, in the embodiment, heat source system 3 and thermal resistance type temperature sensor 4 are symmetrically arranged about the center of mounting ring 115, heat source system 3 can adopt an ultrafast cold and hot impact machine, heat source system 3 and thermal resistance type temperature sensor 4 are in communication connection with control system 2; access door 118 is arranged on the side wall of shell 11, access door 118 is in communication with the inside of mounting cavity 111, so as to regularly overhaul and maintain the internal parts.

[0032] Referring to Figure 1 and Figure 2 , built-in table body 12 is arranged in the inner ring of mounting ring 115, and the side wall of built-in table body 12 is connected to the inner wall of mounting cavity 111 through reinforcing ribs; driving cavity 121 is arranged on the top end of built-in table body 12, and rotating part 122 is arranged in driving cavity 121, in the embodiment, rotating part 122 adopts a motor, rotating part 122 is in communication connection with control system 2, the output shaft of rotating part 122 is vertically arranged, and sample placing table 5 is connected to the end of the output shaft, sample placing table 5 is located between heat source system 3 and thermal resistance type temperature sensor 4, and anti-skid lines 51 are formed on the surface of sample placing table 5, so as to improve the stability of sample placing.

[0033] Referring to Figure 1 and Figure 2 The bottom of the driving cavity 121 is provided with a lifting groove 123, and a lifting piece 124 is arranged in the lifting groove 123. In this embodiment, the lifting piece 124 is a gas cylinder. The lifting piece 124 is vertically arranged. The piston rod end of the lifting piece 124 is connected with a lifting disc 125. The rotating piece 122 is arranged on the surface of the lifting disc 125, so as to drive the sample to be lifted and adjusted.

[0034] Referring to Figure 2 and Figure 3 The top of the shell 11 is provided with a mounting bracket 6. The mounting bracket 6 is provided with a camera 61. The camera 61 is located above the sample placing table 5, so as to shoot the standard degree of sample placing. The camera 61 is in communication connection with the control system 2. The image is sent to the control system 2. The control system 2 controls the opening and closing of the rotating piece 122 and the rotating piece 112 based on the image.

[0035] Referring to Figure 2 and Figure 3 The surface of the shell 11 is also slidably connected with two heat preservation covers 7. The heat source system 3, the heat resistance temperature sensor 4 and the sample placing table 5 are located between the two heat preservation covers 7. The heat preservation cover 7 is driven by a gas cylinder, so as to be closed and opened, to reduce heat loss and improve experimental accuracy.

[0036] The implementation principle of the adjustable vertical heat flow instrument is as follows: when the sample to be detected is placed on the sample placing table 5, the camera 61 will take a photo of the sample. The image result is sent to the control system 2. The control system 2 will judge the placing position of the sample. If the placing is not standard, the rotating piece 122 is started to drive the sample to be adjusted, so as to change the relative position of the sample and the heat source system 3 and the heat resistance temperature sensor 4, so as to improve the detection accuracy. If the placing is standard, the detection can be directly performed. If the control system 2 judges that the volume of the sample to be detected is too large and it is inconvenient to be adjusted, the rotating piece 112 is started to drive the heat source system 3 and the heat resistance temperature sensor 4 to be adjusted, so as to achieve the purpose of accurately measuring the sample. The above are the preferred embodiments of the present application, but do not limit the protection scope of the present application. Therefore, equivalent changes made according to the structure, shape and principle of the present application should be covered in the protection scope of the present application.

Claims

1. An adjustable vertical heat flow meter, characterized by: The pedestal is provided with a control system on the side wall, a heat source system and a heat resistance temperature sensor on the top, a sample placing table between the heat source system and the heat resistance temperature sensor, a mounting bracket on the top of the pedestal, a camera on the mounting bracket for detecting the placement standard of the sample, a driving cavity on the top of the pedestal, a rotating part in the driving cavity, an output shaft of the rotating part connected with the sample placing table, and the camera and the rotating part in communication connection with the control system.

2. An adjustable vertical hot streamer according to claim 1, characterized in that: A lifting groove is formed below the driving cavity, a lifting part is arranged in the lifting groove, a lifting disc is arranged on the piston rod of the lifting part, and the rotating part is mounted on the surface of the lifting disc.

3. An adjustable vertical hot streamer according to claim 1, wherein: The pedestal comprises an outer shell and an inner pedestal body, an installation cavity is formed in the inner shell for arranging the inner pedestal body, the diameter of the inner pedestal body is smaller than that of the installation cavity, the sample placing table is arranged on the top of the inner pedestal body, a rotating part is arranged at the bottom of the installation cavity, an output shaft of the rotating part is connected with a rotating disc, at least two connecting shafts are arranged on the surface of the rotating disc, the inner pedestal body is located between the connecting shafts, an installation ring is arranged at the end of the connecting shaft away from the rotating disc, the heat source system and the heat resistance temperature sensor are arranged on the surface of the installation ring, and the rotating part is in communication connection with the control system.

4. An adjustable vertical hot streamer according to claim 3, wherein: A sliding ring groove is formed in the inner bottom wall of the installation cavity, a plurality of balls are arranged in the sliding ring groove, and the balls abut between the bottom wall of the rotating disc and the inner wall of the sliding ring groove.

5. An adjustable vertical hot streamer according to claim 3, wherein: A maintenance door is arranged on the side wall of the outer shell and is in communication with the inside of the installation cavity.

6. An adjustable vertical hot streamer according to claim 3, wherein: Two heat preservation covers are slidably connected to the top of the outer shell, and the heat source system, the heat resistance temperature sensor and the sample placing table are located between the two heat preservation covers.

7. An adjustable vertical hot streamer according to claim 6, characterized in that: The heat preservation covers are driven by air cylinders.

8. An adjustable vertical hot streamer according to claim 1, wherein: Anti-skid lines are arranged on the surface of the sample placing table.

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