Ventilation equipment for drying platinum rhodium thermocouple
By designing a ventilation equipment for platinum-rhodium thermocouple drying with gas transmission tube and shunt plate structures, the problem of uneven gas transmission in existing equipment is solved, and uniform hot gas transmission and efficient drying of platinum-rhodium thermocouple are achieved.
Patent Information
- Application Number
- CN202422211848.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-10
AI Technical Summary
In the existing ventilation equipment for drying platinum-rhodium thermocouple, the fan is placed at the bottom of the drying box and is easily blocked by obstacles, resulting in uneven gas transmission and affecting the uniformity of hot gas transmission.
A ventilation device for drying a platinum-rhodium thermocouple is designed to drive the gas to be transmitted in a circular tangent direction through a gas transmission tube. The diversion structure of the first shunt plate and the third shunt plate is used to ensure that the gas is maintained uniform when transported to the inside of the sealed box.
It realizes uniform transmission of hot air in the ventilation equipment, improves the drying effect of platinum and rhodium thermocouple, and enhances the ventilation effect of the equipment.
Smart Images
Figure CN223005227U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of platinum-rhodium thermocouples, and particularly relates to a ventilation device for drying platinum-rhodium thermocouples. Background Art
[0002] The platinum-rhodium thermocouple is also called a high-temperature noble metal thermocouple. There are single platinum-rhodium and double platinum-rhodium types. As a temperature measurement sensor, it is usually used in combination with a temperature transmitter, a regulator, a display instrument, etc. to form a process control system. At the same time, when producing platinum-rhodium thermocouples, it is necessary to dry the platinum-rhodium thermocouples to avoid problems such as short circuits in the lines due to moisture inside the platinum-rhodium thermocouples. At the same time, in order to improve the drying effect of the platinum-rhodium thermocouples, the temperature inside the drying oven needs to be kept at 70°. At the same time, in order to ensure more uniform heat gas transmission, a ventilation device is installed inside the platinum-rhodium thermocouple, and the hot gas can be evenly transported to the inside of the drying oven through the ventilation device.
[0003] However, in the current common ventilation device during use, a heating device and a fan are installed at the bottom of the drying oven. After heating to the corresponding temperature by the heating device, the fan is used to drive the gas to be transported to the inside of the drying oven. While ensuring the gas circulation inside the drying oven, the hot gas is evenly transported to the inside of the drying oven. However, when the fan is in use, since the fan is installed at the bottom of the drying oven and different protective devices are arranged outside the fan, when the fan drives the gas to be transported, it is easily blocked by obstacles, resulting in uneven gas transportation when it is transported to the inside of the drying oven. And uneven gas transportation will cause different temperatures of the hot gas transported to the platinum-rhodium thermocouple, thus affecting the drying effect of the platinum-rhodium thermocouple. For this reason, we have proposed a ventilation device for drying platinum-rhodium thermocouples. Content of the Utility Model
[0004] Aiming at the deficiencies of the existing ventilation device for drying platinum-rhodium thermocouples, the utility model provides a ventilation device for drying platinum-rhodium thermocouples, which has the advantages that the gas transmission pipe drives the gas to be transported in a tangential direction of a circle. When the five groups of gas transmission pipes transport each other, the hot gas can be driven to form a circular transmission. And through the shunting of the first shunt plate and the third shunt plate, the uniformity of the gas transported to the inside of the sealed box can be ensured, thus solving the problems raised in the above background art.
[0005] The present utility model provides the following technical solution: A ventilation device for drying platinum-rhodium thermocouples, including a heating box, a sealing box is installed on the upper part of the heating box, a ventilation duct is installed inside the heating box, a filter screen is fixedly connected to the upper end inside the ventilation duct, a positioning column is fixedly connected inside the ventilation duct, a limiting sleeve is sleeved outside the positioning column, a roller is fixedly connected to the outside of the limiting sleeve, a gas transmission pipe is movably sleeved inside the ventilation duct, a first gear is fixedly connected to the side of the gas transmission pipe, a second gear is meshed and connected to the side of the first gear, a gear set is installed at the upper end of the second gear, a first flow dividing plate is fixedly connected to the upper part of the filter screen, a second flow dividing plate is installed inside the first flow dividing plate, and a third flow dividing plate is fixedly connected to the upper part of the first flow dividing plate.
[0006] Preferably, the roller is conical, and a spiral duct is fixedly connected to the outside of the roller. At the same time, five groups of spiral ducts are spirally installed outside the roller.
[0007] Preferably, air outlet holes are opened inside the filter screen, and fan blades are fixedly connected to the upper part of the roller. At the same time, the fan blades are arranged at the lower end of the filter screen.
[0008] Preferably, a hot gas transmission pipe is connected to the outside of the gas transmission pipe. At the same time, the inner sides of the gas transmission pipes are arranged in a tangential direction inside the filter screen.
[0009] Preferably, a limiting sleeve is installed outside the second gear and the gear set, and the limiting sleeve is installed at the lower part of the heating box.
[0010] Preferably, a belt is sleeved outside the gear set, and a motor is installed on one side inside the belt.
[0011] Preferably, arc-shaped grooves are opened inside the first flow dividing plate. At the same time, the outside of the third flow dividing plate has a chamfer. The first flow dividing plates are arranged in the left-right direction inside the heating box, and the third flow dividing plates are arranged in the front-back direction inside the heating box.
[0012] Compared with the existing ventilation device for drying platinum-rhodium thermocouples, the present utility model has the following beneficial effects:
[0013] 1. For this ventilation device for drying platinum-rhodium thermocouples, by starting the motor, through the linkage relationship, the meshing movement between the second gear and the first gear is driven. Thus, the angle of the gas transmission pipe inside the ventilation duct is adjusted, that is, the angle at which the gas transmission pipe drives the gas to be transported into the ventilation duct is adjusted. At the same time, all five groups of gas transmission pipes drive gas transmission, that is, a circular circulation space is formed during the hot gas transmission, that is, the uniformity of the hot gas upward transmission is improved.
[0014] 2. The ventilation equipment for drying platinum-rhodium thermocouples drives hot air to be transmitted into the ventilation duct through a gas transmission pipe. At the same time, the hot air contacts the outside of the spiral pipe. Also, under the blocking of the drum and the rotation of the fan blades, that is, when the hot air passes through the filter screen, the uniformity of gas transmission can be maintained. Meanwhile, a first flow dividing plate and a third flow dividing plate are installed inside the upper end of the heating box. The first flow dividing plate and the third flow dividing plate further drive the hot air to be dispersed, making the transmission of hot air more uniform. And after the hot air is transmitted into the sealed box, the heat dries the platinum-rhodium thermocouple, and the ventilation effect of the equipment is improved. Brief Description of the Drawings
[0015] Figure 1 is a schematic diagram of the main structure of the present invention;
[0016] Figure 2 is a schematic cross-sectional view of the main structure of the present invention;
[0017] Figure 3 is a schematic side cross-sectional view of the main structure of the present invention;
[0018] Figure 4 is a schematic bottom view of the main structure of the present invention;
[0019] Figure 5 is a schematic bottom view of the main structure of the present invention;
[0020] Figure 6 is a schematic enlarged view of part A of the present invention.
[0021] In the figure: 1. Heating box; 2. Sealed box; 3. Ventilation duct; 4. Filter screen; 5. Positioning column; 6. Limiting sleeve; 7. Drum; 8. Spiral pipe; 9. Fan blade; 10. Gas transmission pipe; 11. First gear; 12. Second gear; 13. Gear set; 14. Belt; 15. Motor; 16. First flow dividing plate; 17. Second flow dividing plate; 18. Third flow dividing plate. Detailed Embodiment
[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.
[0023] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6, A ventilation device for drying platinum-rhodium thermocouples, including a heating box 1. A sealing box 2 is installed on the upper part of the heating box 1. After the hot air is transmitted into the interior of the sealing box 2, the hot air dries the platinum-rhodium thermocouple placed inside the sealing box 2. A ventilation duct 3 is installed inside the heating box 1. A filter screen 4 is fixedly connected to the upper end inside the ventilation duct 3. A positioning column 5 is fixedly connected inside the ventilation duct 3. The positioning column 5 tightly limits the position of the limit sleeve 6. The limit sleeve 6 is sleeved outside the positioning column 5. A roller 7 is fixedly connected to the outside of the limit sleeve 6. After the hot air is blown to the outside of the roller 7, the hot air pushes the roller 7 to rotate. A gas transmission pipe 10 is movably sleeved inside the ventilation duct 3. A first gear 11 is fixedly connected to the side of the gas transmission pipe 10. A second gear 12 is meshed and connected to the side of the first gear 11. A gear set 13 is installed at the upper end of the second gear 12. When the gear set 13 rotates, the gear set 13 drives the second gear 12 to rotate. At the same time, meshing movement occurs between the second gear 12 and the first gear 11 to support the first gear 11 to drive the angle of the gas transmission pipe 10 to be adjusted. A first flow splitter 16 is fixedly connected to the upper part of the filter screen 4. A second flow splitter 17 is installed inside the first flow splitter 16. A third flow splitter 18 is fixedly connected to the upper part of the first flow splitter 16. The first flow splitter 16 and the third flow splitter 18 split the passing gas to ensure the uniformity of the hot air when it is transmitted into the heating box 1.
[0024] Please refer to Figure 3 , The roller 7 is conical. A spiral duct 8 is fixedly connected to the outside of the roller 7. At the same time, five groups of spiral ducts 8 are spirally installed on the outside of the roller 7. The roller 7 is sleeved outside the positioning column 5 through the limit sleeve 6 to limit the position of the roller 7 inside the ventilation duct 3. At the same time, after the gas transmission pipe 10 drives the hot air to be transmitted into the ventilation duct 3, when the hot air contacts the spiral duct 8, the hot air can drive the spiral duct 8 to rotate. And the outside of the roller 7 is conical, that is, when the gas passes through the inclined surface outside the roller 7, the gas can be transmitted upward.
[0025] Please refer to Figure 3 , Air outlet holes are opened inside the filter screen 4. A fan blade 9 is fixedly connected to the upper part of the roller 7. At the same time, the fan blade 9 is arranged at the lower end of the filter screen 4. By arranging the fan blade 9 inside the filter screen 4, that is, during the upward transmission of the hot air, the hot air pushes the fan blade 9 to rotate, and the fan blade 9 drives the gas to be evenly transmitted upward into the sealing box 2 to ensure that the hot air circulates more evenly inside the sealing box 2.
[0026] Please refer to Figure 4 and Figure 5, a hot gas transfer pipe is externally connected to the gas transfer pipe 10. At the same time, the inner side of the gas transfer pipe 10 is arranged in a tangential direction inside the filter net 4. The hot gas transfer pipe is a device that combines a heating device and a blower, which can effectively drive the transportation of hot gas. At the same time, the hot gas transfer pipe belongs to the prior art, so it will not be elaborated here. By externally connecting the hot gas transfer pipe to the gas transfer pipe 10, that is, the hot gas transfer pipe can drive the hot gas to be transported to the inside of the ventilation duct 3 through the gas transfer pipe 10. And the gas transfer pipe 10 is arranged in a tangential direction inside the filter net 4. That is, during the process of the gas being transported upward into the ventilation duct 3, it drives the hot gas to rotate inside the heating box 1, so that the temperature of the transported gas remains uniform.
[0027] Please refer to Figure 6 , a limit sleeve is installed outside the second gear 12 and the gear set 13, and the limit sleeve is installed at the lower part of the heating box 1. By installing the limit sleeve outside the second gear 12 and the gear set 13, the limit sleeve limits the positions of the second gear 12 and the gear set 13, improving the stability when the second gear 12 and the gear set 13 are positioned.
[0028] Please refer to Figure 4 , a belt 14 is sleeved outside the gear set 13, and a motor 15 is installed on one side inside the belt 14. By starting the motor 15, the motor 15 drives the belt 14 to rotate. At the same time, the belt 14 drives the five groups of gear sets 13 to rotate synchronously. Through the linkage relationship, that is, controlling the meshing movement between the second gear 12 and the first gear 11. Thus, the inclination angle of the gas transfer pipe 10 inside the ventilation duct 3 can be adjusted. By changing the gas transfer direction, the upward transfer speed of the gas can be adjusted.
[0029] Please refer to Figure 2 and Figure 3 , an arc-shaped groove is opened inside the first flow dividing plate 16, and at the same time, a chamfer is provided outside the third flow dividing plate 18. The first flow dividing plate 16 is arranged in the left-right direction inside the heating box 1, and the third flow dividing plate 18 is arranged in the front-back direction inside the heating box 1. By installing the first flow dividing plate 16 and the third flow dividing plate 18 inside the heating box 1, a second flow dividing plate 17 is installed inside the first flow dividing plate 16. The second flow dividing plate 17 drives the hot gas to be evenly transported into the groove opened inside the first flow dividing plate 16. At the same time, the third flow dividing plate 18 is installed above the first flow dividing plate 16. When the third flow dividing plate 18 drives the gas to be transported upward, it performs a flow dividing process, improving the uniformity when the gas is transported into the sealing box 2.
[0030] Working principle: When in use, start the motor 15. The motor 15 drives the belt 14 to rotate. At the same time, the belt 14 drives the gear set 13 to rotate synchronously. Meanwhile, under the auxiliary conduction of the second gear 12, that is, the second gear 12 can drive the first gear 11 to rotate, and the first gear 11 adjusts the angle of the gas transmission pipe 10 in the gas transmission direction inside the ventilation duct 3. By changing the angle of the gas transmission pipe 10, when the gas is transported into the ventilation duct 3, the gas contacts the drum 7. Through the drainage of the spiral pipe 8, that is, the hot gas pushes the drum 7 to rotate for treatment. At the same time, when the fan blade 9 rotates, the fan blade 9 can guide and transport the gas upward. And a first flow dividing plate 16 and a third flow dividing plate 18 are installed inside the heating box 1. The first flow dividing plate 16 and the third flow dividing plate 18 drive the hot gas to flow, so as to ensure the uniformity when the hot gas is transported upward.
[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A ventilation device for drying platinum-rhodium thermocouples, comprising a heating box (1), a sealing box (2) is installed on the upper part of the heating box (1), a ventilation duct (3) is installed inside the heating box (1), a filter screen (4) is fixedly connected to the upper end of the ventilation duct (3), and a positioning column (5) is fixedly connected to the inside of the ventilation duct (3), characterized in that: The outer part of the positioning column (5) is sleeved with a limiting sleeve (6), the outer part of the limiting sleeve (6) is fixedly connected to a roller (7), the inner part of the ventilation duct (3) is movably sleeved with a gas transmission pipe (10), the side of the gas transmission pipe (10) is fixedly connected to a first gear (11), the side of the first gear (11) is meshingly connected to a second gear (12), the upper end of the second gear (12) is installed with a gear set (13), the upper part of the filter screen (4) is fixedly connected to a first diverter plate (16), the interior of the first diverter plate (16) is installed with a second diverter plate (17), and the upper part of the first diverter plate (16) is fixedly connected to a third diverter plate (18).
2. A ventilation device for drying platinum-rhodium thermocouples according to claim 1, characterized in that: The drum (7) is conical, and a spiral pipe (8) is fixedly connected to the outside of the drum (7). Five groups of spiral pipes (8) are spirally installed on the outside of the drum (7).
3. A ventilation device for drying platinum-rhodium thermocouples according to claim 1, characterized in that: An air outlet is provided inside the filter screen (4), and a fan blade (9) is fixedly connected to the upper part of the drum (7), and the fan blade (9) is arranged at the lower end of the filter screen (4).
4. A ventilation device for drying platinum-rhodium thermocouples according to claim 1, characterized in that: The outside of the gas transmission pipe (10) is connected to a hot gas transmission pipe, and the inside of the gas transmission pipe (10) is arranged in a circular tangential direction inside the filter screen (4).
5. A ventilation device for drying platinum-rhodium thermocouples according to claim 1, characterized in that: A limiting sleeve is installed outside the second gear (12) and the gear set (13), and the limiting sleeve is installed at the bottom of the heating box (1).
6. A ventilation device for drying platinum-rhodium thermocouples according to claim 1, characterized in that: The outside of the gear set (13) is sleeved with a belt (14), and a motor (15) is installed on one side of the inside of the belt (14).
7. A ventilation device for drying platinum-rhodium thermocouples according to claim 1, characterized in that: The first diverter plate (16) has an arc-shaped groove inside, and the third diverter plate (18) has a chamfer outside. The first diverter plate (16) is arranged in the left-right direction inside the heating box (1), and the third diverter plate (18) is arranged in the front-back direction inside the heating box (1).