CN210089884U - Rotary extrusion type solar gravity heat pipe batch temperature difference measuring device - Google Patents
Rotary extrusion type solar gravity heat pipe batch temperature difference measuring device Download PDFInfo
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- CN210089884U CN210089884U CN201920850293.0U CN201920850293U CN210089884U CN 210089884 U CN210089884 U CN 210089884U CN 201920850293 U CN201920850293 U CN 201920850293U CN 210089884 U CN210089884 U CN 210089884U
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Abstract
A rotary extrusion type solar gravity heat pipe batch temperature difference measuring device comprises a bracket, and a constant temperature water tank, a temperature measuring module and a gravity heat pipe loading mechanism which are arranged in the bracket; the support is provided with a support rod for fixing the gravity assisted heat pipe loading mechanism, the constant temperature water tank is arranged at the bottom of the support, and the outer side wall of the constant temperature water tank is provided with a water tank temperature controller for controlling and displaying real-time water temperature; the temperature measuring module comprises a fixed platform and a temperature sensor arranged on the fixed platform, the fixed platform is composed of a horizontal hard plate horizontally arranged in a transverse direction and a vertical hard plate vertically arranged on the horizontal hard plate, the gravity heat pipe loading mechanism comprises a rotating shaft, a stepping motor and a fixing device, the rotating shaft is connected with a support rod on the support through a bearing, and the fixing device is arranged on the rotating shaft.
Description
Technical Field
The utility model relates to a heat pipe detection device and method especially relate to a rotatory extrusion formula solar energy gravity heat pipe batch temperature difference measuring device.
Background
Solar gravity heat pipes are increasingly popular in solar heat utilization due to the advantages of strong heat conduction capability, small heat loss, freezing prevention, no pipe explosion and the like. In order to ensure the heat transfer efficiency of the solar gravity heat pipe, the technical requirement of temperature difference of the solar gravity heat pipe needs to be detected. Most manufacturers of solar gravity heat pipes at the present stage complete temperature difference detection manually, the detection mode adopts single non-contact measurement and contact measurement, the measurement efficiency is extremely low, and due to the fact that manual detection has large human factors, large experience errors, large labor intensity and difficult error avoidance. There is therefore a need for a way to measure batch solar gravity heat pipe temperature differences.
The task of batch solar gravity heat pipe temperature difference measurement is completed by using a mechanical device instead of manpower, so that the measurement efficiency can be greatly improved, and the measurement error is reduced. However, in the installation process of the mechanical device, installation errors cannot be avoided, so that the phenomenon that the temperature sensor cannot be in contact with the condensation end or is in full contact occurs when the temperature difference of the solar gravity heat pipe is measured by using contact temperature measurement, the surface emissivity of a measured object needs to be obtained by using non-contact measurement such as an infrared thermal imager, and the obtaining process is complicated. There is therefore a need for a way to measure the temperature difference of a batch of solar gravity heat pipes that overcomes certain installation errors.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a rotary extrusion type solar gravity heat pipe batch temperature difference measuring device and measuring method, which can solve the problem of batch detection of temperature difference of solar gravity heat pipes, load a plurality of solar gravity heat pipes at a time, obtain respective temperature values of condensation ends of the solar gravity heat pipes, and reduce the error of temperature difference measurement due to uniform arrangement of the solar gravity heat pipes; on the other hand, the temperature measurement error of the condensation end of the solar gravity heat pipe caused by the installation error of the device can be solved, and the measurement accuracy of the solar gravity heat pipe is finally improved.
The utility model aims to provide a rotary extrusion type solar gravity heat pipe batch temperature difference measuring device, which comprises a bracket, a constant temperature water tank, a temperature measuring module and a gravity heat pipe loading mechanism, wherein the constant temperature water tank, the temperature measuring module and the gravity heat pipe loading mechanism are arranged in the bracket; the support is provided with a support rod for fixing the gravity assisted heat pipe loading mechanism, the constant temperature water tank is arranged at the bottom of the support, and the outer side wall of the constant temperature water tank is provided with a water tank temperature controller for controlling and displaying real-time water temperature;
the temperature measuring module comprises a fixed platform and a temperature sensor arranged on the fixed platform, the fixed platform consists of a horizontal hard plate horizontally arranged in the transverse direction and a vertical hard plate vertically arranged on the horizontal hard plate, the horizontal hard plate is fixed at the top of the support through an angle iron and a T-shaped support connected with the angle iron, one side of the vertical hard plate is connected with the support through at least two fixed support columns, a plurality of spring positioning pins are arranged on the other side of the vertical hard plate at equal intervals, and the spring positioning pins are provided with the temperature sensor through copper adhesive tapes;
the gravity heat pipe loading mechanism comprises a rotating shaft, a stepping motor and a fixing device, the rotating shaft is connected with a support rod on the support through a bearing, the fixing device is arranged on the rotating shaft, the fixing device comprises two circular pipes vertically arranged on the rotating shaft and fixing plates respectively arranged at two ends of the two circular pipes, and circular through holes for the gravity heat pipes to pass through are formed in the fixing plates; the stepping motor is arranged on a supporting rod on one side of the bracket.
Furthermore, the fixing plate is rectangular, circular or triangular, the number of the circular through holes formed in the fixing plate is 10-15, and a rubber sleeve is embedded in each circular through hole.
Further, the temperature sensor is a patch type PT100 with grade A and precision of (0.15 +0.002 x | t |); the temperature control precision of the constant-temperature water tank is within the range of +/-0.5 ℃.
Furthermore, the deformation range of the spring positioning pin is 0cm-3 cm.
Furthermore, the horizontal hard plate, the vertical hard plate and the fixing plate are all made of organic glass or polypropylene.
A temperature difference measurement method using a rotary extrusion type solar gravity heat pipe batch temperature difference measurement device comprises the following steps:
1) starting a constant-temperature water tank and setting a preset temperature value;
2) the stepping motor controls the rotary transportation module loaded with the solar gravity heat pipe to be in a horizontal position, and the solar gravity heat pipe to be detected is inserted and fixed in the positions of the round holes corresponding to the two fixing plates.
3) When the water temperature of the constant-temperature water tank is stabilized at a preset temperature value, the stepping motor controls the fixing device loaded with the solar gravity heat pipe to rotate 90 degrees clockwise, so that a measured surface formed by the condensation end of the solar gravity heat pipe is in full contact with a temperature measuring plane formed by the temperature sensor and is extruded by the spring positioning pin.
4) After standing for a period of time, the PT100 temperature sensor measures the temperature of the condensation end of each solar gravity heat pipe, each temperature value Ti is displayed through a temperature polling instrument, and the temperature difference Ti is subtracted from the real-time water temperature Tr of the constant-temperature water tank to obtain the temperature difference △ Ti.
5) After the measurement is finished, the fixing device loaded with the solar gravity heat pipes is controlled by the stepping motor to rotate 90 degrees anticlockwise, so that the fixing device is in an initial horizontal position, and then the next batch of solar gravity heat pipes to be detected can be detached and loaded.
Further, the preset temperature value in the step 1) is 90 °.
Further, the standing time in the step 4) is 30-60 s.
The utility model has the advantages of: the utility model has the advantages that on one hand, the problem of batch detection of temperature difference of the solar gravity heat pipes can be solved, a plurality of solar gravity heat pipes are loaded at one time, the temperature value of the condensation end of each solar gravity heat pipe is obtained, and the temperature difference measurement error can be reduced by uniformly arranging the solar gravity heat pipes; on the other hand, the temperature measurement error of the condensation end of the solar gravity heat pipe caused by the installation error of the device can be solved, and the measurement accuracy of the solar gravity heat pipe is finally improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural diagram of the temperature measurement module according to the present invention;
fig. 3 is a schematic view of the structure in direction a of fig. 2.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more clearly understood by those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples.
As shown in fig. 1-3, the temperature difference measuring device for batch extrusion solar gravity heat pipe of the present invention comprises a support 1, and a constant temperature water tank 2, a temperature measuring module 3 and a gravity heat pipe loading mechanism 4 which are arranged in the support 1; a support rod 5 for fixing the gravity assisted heat pipe loading mechanism is arranged on the support 1, the constant temperature water tank 2 is arranged at the bottom of the support 1, and a water tank temperature controller 6 for controlling and displaying real-time water temperature is arranged on the outer side wall of the constant temperature water tank 2;
the temperature measuring module 3 comprises a fixed platform and a temperature sensor 7 arranged on the fixed platform, the fixed platform consists of a horizontal hard plate 8 horizontally arranged in a transverse direction and a vertical hard plate 9 vertically arranged on the horizontal hard plate 8, the horizontal hard plate 8 is fixed on the top of the support 1 through an angle iron 10 and a T-shaped support 11 connected with the angle iron 10, one side of the vertical hard plate 9 is connected with the support 1 through at least two fixing support columns 12, a plurality of spring positioning pins 13 are equidistantly arranged on the other side of the vertical hard plate 9, and the spring positioning pins 13 are provided with the temperature sensor 7 through copper tapes; the temperature sensor 7 and the spring positioning pin 13 are bonded and fixed by adopting a high-temperature-resistant copper adhesive tape, so that the heat transfer of the solar gravity heat pipe is not influenced; secondly, the temperature sensor 7 and the plane of the spring positioning pin 13 are firmly bonded and are not easy to fall off, and the performance of the temperature sensor is not influenced; the spring positioning pin and the vertical hard plate are fixed by the AB glue with high-strength adhesion, so that the spring positioning pin is prevented from falling off.
The gravity heat pipe loading mechanism 4 comprises a rotating shaft 14, a stepping motor 15 and a fixing device, wherein the rotating shaft 14 is connected with a support rod 5 on the support 1 through a bearing, the rotating shaft 14 is provided with the fixing device, the fixing device comprises two circular pipes 16 vertically arranged on the rotating shaft and fixing plates 17 respectively arranged at two ends of the two circular pipes 16, and circular through holes for the gravity heat pipes to pass through are formed in the fixing plates 17; the stepping motor 15 is arranged on one side of the support 1 to support the rod 5.
Referring to fig. 1, the fixing plate 17 is rectangular, circular or triangular, the number of circular through holes formed in the fixing plate 17 is 10-15, and a rubber sleeve is embedded in each circular through hole.
Referring to fig. 1, the temperature sensor 7 is a patch PT100 with a grade of a, a precision of (0.15 +0.002 × t |) ° c, and | t |, which is an absolute value of an actual temperature; the temperature control precision of the constant-temperature water tank is within the range of +/-0.5 ℃.
Referring to fig. 1, the deformation range of the spring positioning pin 13 is 0cm-3 cm.
Referring to fig. 1, the horizontal hard plate 8, the vertical hard plate 9 and the fixing plate 17 are made of organic glass or polypropylene, so that the heat transfer of the solar gravity assisted heat pipe is slightly affected by the round holes.
The utility model discloses a concrete embodiment and implementation working process are as follows:
the length of the solar gravity heat pipe used in the test in the example is 1.7 meters, the ambient temperature is 20 ℃, and 10 solar gravity heat pipes are horizontally inserted into the rotary transportation module.
Step 1) starting a constant-temperature water tank, setting a preset temperature value to be 90 ℃, adding a proper amount of water into the constant-temperature water tank 20 to enable the water depth to reach 1.1 m, and controlling the water temperature to reach 90 ℃ and be stable through a water temperature controller 21.
Step 2) after the water temperature is stabilized at 90 ℃, the stepping motor 9 controls the rotary transportation module to rotate clockwise by 90 degrees to enable the gravity heat pipe to be in a vertical state and to be in contact extrusion with the temperature sensor 8, the temperature sensor is connected with the temperature patrol instrument, after 60s, the condensation end temperature Ti of 10 solar gravity heat pipes is sequentially read from the temperature patrol instrument, and the condensation end temperature Ti is sequentially subtracted from the real-time temperature Tr of the constant-temperature water tank to obtain a specific formula of the temperature difference △ Ti., wherein the specific formula is as follows:
△Ti=Tr-Ti
△ Ti is the temperature difference between the evaporation section and the condensation end of the ith solar gravity heat pipe, Tr is the real-time water temperature of the constant-temperature water tank, and Ti is the temperature value of the condensation end of the ith solar gravity heat pipe measured by the contact type temperature sensor A-level PT 100.
The temperature values of the condensation ends are respectively measured to be 78.5, 78.6, 79.1, 79.8, 80.7, 80.1, 82.2, 80.6, 78.8 and 79.7 ℃ in the implementation, and the real-time water temperature of the constant-temperature water tank is 89.8 ℃ in the measurement. The temperature differences in the solar gravity heat pipe temperature difference test are respectively 11.3, 11.2, 10.7, 10, 9.1, 9.7, 7.6, 9.2, 11 and 10.1 ℃.
After the measurement is finished, the stepping motor 9 controls the rotary transportation structure loaded with the solar gravity heat pipes to rotate 90 degrees anticlockwise, so that the rotary transportation structure is in an initial horizontal position, and a worker waits for disassembling and loading the next batch of solar gravity heat pipes to be detected.
In order to verify the effectiveness of the temperature difference measurement method, the contact extrusion temperature measurement module is firstly removed, the same A-level patch type PT100 is directly and tightly adhered to the condensation end of each solar gravity heat pipe by a copper adhesive tape, the rotary transportation module originally provided with 10 solar gravity heat pipes is rotated to the vertical direction again, the evaporation end is immersed in the constant temperature water tank for 60s, then the temperature of the condensation end of 10 solar gravity heat pipes is respectively 78.1, 79.2, 79.3, 80.1, 80.3, 79.9, 80.7, 80.8, 79.3 and 79.9 ℃ which are sequentially read from the temperature polling instrument, and the real-time water temperature of the constant temperature water tank is 89.8 ℃ during measurement. The temperature differences in the solar gravity heat pipe temperature difference test are respectively 11.7, 10.6, 10.5, 9.7, 9.5, 9.9, 9.1, 9, 10.5 and 9.9 ℃.
The data obtained by the above method show that: the absolute values of the temperature difference obtained by the method and the absolute values of the difference between the temperature and the temperature directly measured by the PT100 platinum resistance are respectively 0.4, 0.6, 0.2, 0.3, 0.4, 0.2, 1.5, 0.2, 0.5 and 0.2 ℃, and the temperature measuring method adopted by the method has high feasibility and the error between the measured data and the relative true value is small.
The utility model discloses bear device and the measurement difference in temperature method of solar energy gravity heat pipe should accord with GB/T24767-2009 "solar energy gravity heat pipe" requirement.
Therefore, the utility model discloses can overcome the temperature plane nonparallel that is constituteed by the condensation end or the problem of contact failure to a certain extent that the device installation error leads to by the survey plane of constituteing with temperature sensor, and can once only detect many solar energy gravity heat pipes, promote production automation level.
The specific embodiments described herein are merely illustrative of the principles of the present invention and its efficacy, and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical idea of the present invention shall be covered by the claims of the present invention.
Claims (5)
1. A rotary extrusion type solar gravity heat pipe batch temperature difference measuring device is characterized by comprising a bracket, a constant temperature water tank, a temperature measuring module and a gravity heat pipe loading mechanism, wherein the constant temperature water tank, the temperature measuring module and the gravity heat pipe loading mechanism are arranged in the bracket; the support is provided with a support rod for fixing the gravity assisted heat pipe loading mechanism, the constant temperature water tank is arranged at the bottom of the support, and the outer side wall of the constant temperature water tank is provided with a water tank temperature controller for controlling and displaying real-time water temperature;
the temperature measuring module comprises a fixed platform and a temperature sensor arranged on the fixed platform, the fixed platform consists of a horizontal hard plate horizontally arranged in the transverse direction and a vertical hard plate vertically arranged on the horizontal hard plate, the horizontal hard plate is fixed at the top of the support through an angle iron and a T-shaped support connected with the angle iron, one side of the vertical hard plate is connected with the support through at least two fixed support columns, a plurality of spring positioning pins are arranged on the other side of the vertical hard plate at equal intervals, and the spring positioning pins are provided with the temperature sensor through copper adhesive tapes;
the gravity heat pipe loading mechanism comprises a rotating shaft, a stepping motor and a fixing device, the rotating shaft is connected with a support rod on the support through a bearing, the fixing device is arranged on the rotating shaft, the fixing device comprises two circular pipes vertically arranged on the rotating shaft and fixing plates respectively arranged at two ends of the two circular pipes, and circular through holes for the gravity heat pipes to pass through are formed in the fixing plates; the stepping motor is arranged on a supporting rod on one side of the bracket.
2. The rotary extrusion type solar gravity heat pipe batch temperature difference measuring device as claimed in claim 1, wherein the fixing plate is rectangular, circular or triangular in shape, the number of the circular through holes formed in the fixing plate is 10-15, and a rubber sleeve is embedded in each circular through hole.
3. The device for measuring the batch temperature difference of the rotary extrusion type solar gravity heat pipe according to claim 1, wherein the temperature sensor is a patch type PT100 with a grade of A and a precision of (0.15 +0.002 x | t |); the temperature control precision of the constant-temperature water tank is within the range of +/-0.5 ℃.
4. The device for measuring the temperature difference in batches by using the rotary extrusion type solar gravity heat pipe according to claim 1, wherein the deformation range of the spring positioning pin is 0cm-3 cm.
5. The batch temperature difference measuring device for the rotary extrusion type solar gravity heat pipe according to claim 1, wherein the horizontal hard plate, the vertical hard plate and the fixing plate are made of organic glass or polypropylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920850293.0U CN210089884U (en) | 2019-06-06 | 2019-06-06 | Rotary extrusion type solar gravity heat pipe batch temperature difference measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920850293.0U CN210089884U (en) | 2019-06-06 | 2019-06-06 | Rotary extrusion type solar gravity heat pipe batch temperature difference measuring device |
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| CN210089884U true CN210089884U (en) | 2020-02-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112525378A (en) * | 2020-11-23 | 2021-03-19 | 佛山市高明区科企生产力促进中心 | Temperature detection device based on geological exploration |
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2019
- 2019-06-06 CN CN201920850293.0U patent/CN210089884U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112525378A (en) * | 2020-11-23 | 2021-03-19 | 佛山市高明区科企生产力促进中心 | Temperature detection device based on geological exploration |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200218 Termination date: 20200606 |