High-precision gas heating structure and method of application thereof

Abstract

The application relates to a high-precision gas heating structure and an application method thereof, and relates to the technical field of gas heating structures.The high-precision gas heating structure comprises a heating part, a gas guiding part and a temperature measuring part.The heating part comprises a thermal cycle device and a heat supply device, the heat supply device is connected with the thermal cycle device, and the heat supply device is used for supplying heat to the thermal cycle device.The gas guiding part comprises a gas guiding pipeline, a through channel is arranged on the thermal cycle device in a penetrating mode and is used for mounting the gas guiding pipeline, and the inner cavity of the gas guiding pipeline is used for passing gas.The temperature measuring part comprises a pre-mounting frame and a temperature measuring element, the temperature measuring element is arranged in the inner cavity of the gas guiding pipeline through the pre-mounting frame, and the temperature measuring element is located in the inner cavity of the thermal cycle device, so that the temperature of the gas located in the inner cavity of the gas guiding pipeline is measured when the thermal cycle device heats the gas.Application methods comprise heat supply, air supply and temperature measurement.The application has the effects of simultaneously heating and measuring the temperature of the gas, and effectively guarantees the precision of the temperature measuring element in measuring the temperature of the heated gas.

Description

Technical Field

[0001] This application relates to the field of gas heating structure technology, and in particular to high-precision gas heating structures and their application methods. Background Technology

[0002] Gas sensors generally refer to devices that convert the gas fraction of a specific gas into a corresponding electrical signal. Furthermore, existing gas sensors can also quickly analyze the composition and concentration of gases by collecting gas samples and accurately measure their temperature. Therefore, gas sensors are often used as temperature measuring devices in gas heating equipment.

[0003] In practical gas heating and temperature measurement, some gases are inherently high-pressure, corrosive, and unstable, making the pipelines used to supply these gases highly susceptible to corrosion and damage. Therefore, operators often heat the gas first, and then use a gas sensor to measure the temperature of the heated gas.

[0004] However, when the gas is heated and then the temperature is measured by the gas sensor, there is a temperature difference in the measured temperature, which greatly reduces the accuracy of the gas sensor in measuring the gas temperature. Summary of the Invention

[0005] To address the issue of low accuracy in gas temperature measurement caused by separate gas heating and temperature measurement operations, this application provides a high-precision gas heating structure and its application method.

[0006] Firstly, the high-precision gas heating structure provided in this application adopts the following technical solution:

[0007] A high-precision gas heating structure includes a heating section, a gas guiding section, and a temperature measuring section. The heating section includes a heat circulation device and a heating device, which are connected to each other to supply heat to the heat circulation device. The gas guiding section includes a gas guiding pipe, and the heat circulation device has a through-channel for installing the gas guiding pipe. The inner cavity of the gas guiding pipe is used for gas passage. The temperature measuring section includes a pre-mounted frame and a temperature measuring element. The temperature measuring element is mounted in the inner cavity of the gas guiding pipe via the pre-mounted frame and is located in the inner cavity of the heat circulation device to measure the temperature of the gas when the heat circulation device heats the gas located in the inner cavity of the gas guiding pipe.

[0008] By adopting the above technical solution, the heating device heats the heat circulation device, creating a stable, constant-temperature space inside the heating device that facilitates long-term heat insulation. The inner cavity of the gas guide pipe is used to supply gas, and the insulation block heats the inner cavity of the gas guide pipe, ensuring that the gas entering the inner cavity of the gas guide pipe is heated stably and evenly. This helps to ensure the continuity and stability of the gas heating in the inner cavity of the gas guide pipe for a long time. The temperature measuring element measures the temperature of the heated gas in the inner cavity of the gas guide pipe, so that the heating and temperature measurement of the gas are carried out simultaneously, effectively ensuring the accuracy of the temperature measuring element in determining the temperature of the heated gas.

[0009] In one specific implementation scheme, the heat circulation device includes an insulation block with multiple heat-conducting channels spaced apart along the height of the insulation block. The heating device includes two sets of connecting mechanisms, each set including a connecting pipe and multiple fixed connecting pipes, all of which are connected to the connecting pipe. All fixed connecting pipes of one set of connecting mechanisms are inserted into the sidewall at one end of the length of each heat-conducting channel, and all fixed connecting pipes of the other set of connecting mechanisms are inserted into the sidewall at the other end of the length of each heat-conducting channel. The connecting pipes of one set of connecting mechanisms are used to continuously inject heat-conducting fluid into all heat-conducting channels, while the connecting pipes of the other set of connecting mechanisms are used to continuously discharge heat-conducting fluid from all heat-conducting channels.

[0010] By adopting the above technical solution, one connecting pipe continuously injects heat-conducting fluid into the inner cavity of the temperature-conducting channel through five fixed connecting pipes, while another connecting pipe continuously discharges the heat-conducting fluid from the inner cavity of the temperature-conducting channel through five fixed connecting pipes. This ensures that there is always heat-conducting fluid flowing inside the inner cavity of the temperature-conducting channel, maintaining a constant high temperature inside the insulation block and the inner cavity of the connecting channel. This helps to ensure the continuity and stability of gas heating in the gas-conducting pipe. In addition, because there is a continuous flow of heat-conducting fluid inside the inner cavity of the temperature-conducting channel, the temperature rises stably and uniformly throughout the inner cavity of the connecting channel. This helps to reduce the phenomenon of unstable fluctuations caused by sudden local temperature rises in the gas, effectively ensuring the heating stability of the gas in the gas-conducting pipe.

[0011] In one specific implementation, the heat circulation device further includes multiple sets of flow-slowing mechanisms, one set of which is correspondingly disposed within the side wall of a temperature-passing channel; each set of flow-slowing mechanisms includes a continuous main shaft and multiple flow-slowing ring plates, all of which are disposed on the continuous main shaft and are spaced apart along the length of the continuous main shaft.

[0012] By adopting the above technical solution, the slow-flow ring plate and the continuous main shaft are positioned within the side wall of the heat-conducting channel by their own weight. As the heat-conducting fluid flows in the inner cavity of the heat-conducting channel, the slow-flow ring plate can block the flow of the heat-conducting fluid, slow down the flow speed of the heat-conducting fluid in the heat-conducting channel, and allow the heat of the insulation block to be fully transferred to the inner cavity of the air-conducting pipe. At the same time, it reduces the loss and waste caused by the rapid outflow of the heat-conducting fluid from the heat-conducting channel.

[0013] In one specific implementation, the flow-slowing mechanism further includes multiple flow-blocking ring plates, all of which are disposed on a continuous main shaft, and one flow-blocking ring plate is disposed between two adjacent flow-slowing ring plates.

[0014] By adopting the above technical solution, the flow interruption ring plate is located between two adjacent slow flow ring plates, and the outer diameter of the adjacent flow interruption ring plate and the slow flow ring plate are different. This greatly increases the flow resistance of the heat transfer fluid in the inner cavity of the heat transfer channel, effectively reduces the flow velocity of the heat transfer fluid in the inner cavity of the heat transfer channel, and improves the heat transfer efficiency of the heat insulation block in the heat transfer pipe.

[0015] In one specific implementation, the air guide pipe is fixedly installed inside the side wall of the connecting channel.

[0016] By adopting the above technical solution, the gas guide pipe, which is integrally embedded in the inner cavity of the connecting channel, is in a stable position and is not prone to loosening or deviation. This ensures the positional stability and application stability of the gas guide pipe after installation, and in turn helps to ensure the heating stability and continuity of the gas in the inner cavity of the gas guide pipe.

[0017] In one specific implementation, the heating structure further includes an assembly part, the assembly part including an external fixing device for detachably mounting the air duct to the side wall of the connecting channel.

[0018] By adopting the above technical solution, the external fixing device allows the gas guide pipe to be detachably installed inside the side wall of the connecting channel. After the gas guide pipe has been used for a long time, the operator can disassemble the gas guide pipe for maintenance and replacement, which helps to ensure the continuity and stability of gas heating in the inner cavity of the gas guide pipe for a long time.

[0019] In one specific implementation, the external fixing device includes a heat-conducting cylinder and an end-fixing mechanism. The heat-conducting cylinder is disposed within the side wall of the connecting channel, the gas-conducting pipe passes through the side wall of the heat-conducting cylinder, and the end-fixing mechanism is used to connect the gas-conducting pipe to the heat-conducting cylinder.

[0020] By adopting the above technical solution, the heat-conducting cylinder, through its own metal material properties, serves as a stable heat-conducting medium between the insulation block and the air-conducting pipe, ensuring the stability of the air-conducting pipe's inner cavity at a constant high temperature. The end-fixing mechanism is used to connect the heat-conducting cylinder and the air-conducting pipe, allowing the air-conducting pipe to be detachably installed inside the side wall of the heat-conducting cylinder, so that operators can disassemble, maintain, or replace the air-conducting pipe that has been in use for a long time.

[0021] In one specific implementation, the end-fixing mechanism includes an extension plate, an end-position screw, and a locking nut; the extension plate is disposed on the gas guide pipe, the end-position screw is disposed on the heat conduction cylinder, and the end-position screw passes through the extension plate; the locking nut is threadedly connected to the end-position screw, so that the extension plate is connected to the heat conduction cylinder.

[0022] By adopting the above technical solution, the side plate increases the contact area between the gas guide pipe and the heat conduction cylinder. After the end screw passes through the side plate, the locking nut is screwed onto the end screw, so that the side plate and the heat conduction cylinder are fixedly connected as a whole, thereby effectively ensuring the positional stability and application stability of the gas guide pipe installed in the inner cavity of the heat conduction cylinder. In addition, it also facilitates the operator to quickly disassemble the gas guide pipe for maintenance and replacement.

[0023] Secondly, this application also provides an application method for a high-precision gas heating structure, the application method including the following application steps:

[0024] Heating: The heating device continuously injects heat-conducting fluid into the heat circulation device to raise the temperature of the inner cavity of the connecting channel for standby.

[0025] Ventilation: Gas is introduced into the inner cavity of the gas delivery pipe. The heat circulation device conducts heat through the gas delivery pipe, raising the temperature of the inner cavity of the gas delivery pipe, thereby heating the gas located in the inner cavity of the gas delivery pipe.

[0026] Temperature measurement: The temperature measuring element located inside the gas delivery pipe measures the temperature of the heated flowing gas.

[0027] By adopting the above technical solution, operators can quickly and efficiently complete the heating and temperature measurement of the gas, and effectively ensure the accuracy of the temperature measuring device in measuring the temperature of the heated gas.

[0028] In summary, this application has the following beneficial technical effects:

[0029] 1. The heating device provides heat to the heat circulation device, creating a stable, constant-temperature space inside the heating device that facilitates long-term insulation. The inner cavity of the gas guide pipe is used to supply gas, and the insulation block provides heat through the inner cavity of the gas guide pipe, ensuring that the gas entering the inner cavity is heated stably and evenly. This helps to ensure the continuity and stability of the gas heating in the inner cavity of the gas guide pipe over a long period of time. The temperature measuring element measures the temperature of the heated gas in the inner cavity of the gas guide pipe, allowing the heating and temperature measurement of the gas to occur simultaneously, effectively ensuring the accuracy of the temperature measuring element in determining the temperature of the heated gas.

[0030] 2. The slow-flow ring plate and the continuous main shaft are positioned within the side wall of the heat-conducting channel by their own weight. As the heat-conducting fluid flows through the inner cavity of the heat-conducting channel, the slow-flow ring plate can block the flow of the heat-conducting fluid, slow down the flow speed of the heat-conducting fluid in the heat-conducting channel, and allow the heat of the insulation block to be fully transferred to the inner cavity of the air-conducting pipe. In addition, it reduces the loss and waste caused by the rapid outflow of the heat-conducting fluid from the heat-conducting channel. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the high-precision gas heating structure in Embodiment 1 of this application;

[0032] Figure 2 This is a cross-sectional view along the AA direction in Embodiment 1 of this application;

[0033] Figure 3 This is a schematic cross-sectional view along the BB direction in Embodiment 1 of this application;

[0034] Figure 4 yes Figure 3 An enlarged schematic diagram of section C;

[0035] Figure 5 This is a schematic cross-sectional view of the high-precision gas heating structure in Embodiment 2 of this application along the vertical direction;

[0036] Figure 6 yes Figure 5 An enlarged schematic diagram of part D in the middle.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Heating section; 2. Air guiding section; 21. Air guiding pipe; 3. Temperature measuring section; 31. Pre-assembly frame; 32. Temperature measuring element; 4. Assembly section; 5. Heat circulation device; 51. Insulation block; 511. Temperature passage; 512. Connecting passage; 52. Flow slowing mechanism; 521. Main shaft; 522. Flow slowing ring plate; 523. Flow interruption ring plate; 6. Heating device; 61. Connecting mechanism; 611. Connecting pipe; 612. Fixed connecting pipe; 7. External fixing device; 71. Heat conducting cylinder; 72. End fixing mechanism; 721. Side plate; 722. End screw; 723. Locking nut. Detailed Implementation

[0039] This application discloses a high-precision gas heating structure.

[0040] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0041] Example 1

[0042] Reference Figure 1 and Figure 2 The high-precision gas heating structure includes a heating unit 1, a gas guiding unit 2, and a temperature measuring unit 3. The temperature measuring unit 3 is disposed inside the heating unit 1 via the gas guiding unit 2, the inner cavity of which is used to supply the flow of gas to be heated and whose temperature is to be measured. The heating unit 1 heats the flowing gas located within the inner cavity of the gas guiding unit 2, and the temperature measuring unit 3 measures the temperature of the heated gas within the inner cavity of the gas guiding unit 2 in real time. This simultaneous heating and temperature measurement helps ensure the accuracy of the gas temperature measurement by the temperature measuring unit 3.

[0043] Reference Figure 2 and Figure 3 The heating unit 1 includes a heat circulation device 5 and a heating device 6, wherein the heat circulation device 5 further includes a heat insulation block 51. In this embodiment, the heat insulation block 51 can be a silicon carbide block, which has high hardness, stable chemical properties, high thermal conductivity, low coefficient of thermal expansion, and oxidation resistance at high temperatures. Multiple heat passage channels 511 are provided on the heat insulation block 51. In this embodiment, the number of heat passage channels 511 can be five, which are spaced apart and equidistantly distributed along the height direction of the heat insulation block 51. Each heat passage channel 511 has a U-shaped cross-section in the horizontal direction.

[0044] Reference Figure 2 and Figure 3 The heating device 6 is connected to and used in conjunction with the insulation block 51 through all the temperature passages 511. The heating device 6 includes two sets of connection mechanisms 61. One set of connection mechanisms 61 is connected to one end of all the temperature passages 511 along the length direction, and the other set of connection mechanisms is connected to the other end of all the temperature passages 511 along the length direction.

[0045] Reference Figure 2 and Figure 3In this embodiment, the connection method of either end of the two sets of connecting mechanisms 61 and the temperature-controlled channel 511 is the same. The following example illustrates the connection of one set of connecting mechanisms 61 to one end of the temperature-controlled channel 511 along its length. Each set of connecting mechanisms 61 includes a connecting pipe 611 and multiple fixed connecting pipes 612. The number of fixed connecting pipes 612 can be five. The five fixed connecting pipes 612 are integrally formed on the side wall of the fixed connecting pipe 612, and are spaced apart and equidistantly distributed along the length of the connecting pipe 611. The five fixed connecting pipes 612 are inserted one-to-one into the side wall of the temperature-controlled channel 511, thus connecting the connecting pipe 611, all the fixed connecting pipes 612, and the inner cavity of all the temperature-controlled channels 511.

[0046] Reference Figure 2 and Figure 3 In this embodiment, one connecting pipe continuously injects heat-conducting fluid, which can be a high-temperature oil, into the inner cavity of the five temperature-conducting channels 511 through five fixed connecting pipes. After entering the inner cavity of the temperature-conducting channels 511, the heat-conducting fluid causes the interior of the insulation block 51 to heat up rapidly. Another connecting pipe and the five connected fixed connecting pipes continuously discharge the heat-conducting fluid flowing within the five temperature-conducting channels 511. Furthermore, one connecting pipe continuously injects high-temperature heat-conducting fluid into the inner cavity of the temperature-conducting channels 511, while the other connecting pipe continuously discharges the heat-conducting fluid from the inner cavity of the temperature-conducting channels 511, ensuring that the interior of the insulation block 51 is uniformly heated. It should be noted that the operator can change the temperature of the insulation block 51 by altering the temperature of the heat-conducting fluid entering the inner cavity of the temperature-conducting channels 511.

[0047] Reference Figure 2 A through-channel 512 is provided on the insulation block 51. In this embodiment, each through-channel 511 is distributed circumferentially along the through-channel 512. As the heat-conducting fluid enters the cavity of the through-channel 511 and flows, the cavity of the through-channel 512 can be rapidly heated and quickly differentiated from the external space temperature of the insulation block 51. As the heat-conducting fluid continues to flow in the cavity of the insulation channel, the cavity of the through-channel 512 is in a uniform high-temperature state, and compared with the external space temperature of the insulation block 51, it has the effect of heat insulation and heat preservation.

[0048] Reference Figure 2The gas guiding section 2 includes a gas guiding pipe 21, which in this embodiment can be a Teflon heat shrink tubing. The gas guiding pipe 21 possesses high temperature resistance, corrosion resistance, high pressure resistance, high flame retardancy, and long-term resistance to aging. The gas guiding pipe 21 is integrally embedded in the side wall of the connecting channel 512, and the connection between the gas guiding pipe 21 and the insulation block 51 is sealed and fixed with concrete grout. The operator introduces a specific gas into the inner cavity of the gas guiding pipe 21, causing the gas to heat up rapidly under the action of the heat-conducting fluid flowing within the temperature-conducting channel 511. It should be noted that because the gas guiding pipe 21 itself possesses high pressure resistance and corrosion resistance, and the continuous flow of the heat-conducting fluid results in a uniform and steady temperature rise within the connecting channel 512, it effectively reduces gas anomalies caused by sudden localized temperature increases or damage to the gas guiding pipe 21, effectively ensuring the heating stability and efficiency of the gas.

[0049] Reference Figure 2 The temperature measuring unit 3 includes a pre-mounted frame 31 and a temperature measuring element 32. In this embodiment, the temperature measuring element 32 can be a gas sensor with temperature measurement function. One end of the pre-mounted frame 31 is fixed to the side wall of the gas guide channel by bolts, and the temperature measuring element 32 is fixed to the other end of the pre-mounted frame 31 by bolts, with the temperature measuring element 32 located at the central axis of the gas guide pipe 21. As the gas guide pipe 21 is heated inside the insulation block 51, the gas entering the inner cavity of the gas guide pipe 21 is heated to a higher temperature, and the temperature measuring element 32 measures the temperature of the flowing gas in real time within the inner cavity of the gas guide pipe 21. This process allows gas heating and temperature measurement to occur simultaneously, thereby effectively reducing the temperature difference phenomenon that exists when the gas is heated and then measured, ensuring the accuracy of the temperature measuring element 32 in measuring the temperature of the heated gas.

[0050] Reference Figure 3 and Figure 4 To ensure the efficiency of heat conduction by the heat-conducting fluid to the insulation block 51, the heat circulation device 5 also includes multiple sets of flow-slowing mechanisms 52. In this embodiment, one set of flow-slowing mechanisms 52 is correspondingly disposed in the side wall of a heat-conducting channel 511. Each set of flow-slowing mechanisms 52 includes a continuous main shaft 521, multiple flow-slowing ring plates 522, and multiple flow-interrupting ring plates 523. The continuous main shaft 521, the flow-slowing ring plates 522, and the flow-interrupting ring plates 523 can all be made of silicon carbide. All flow-slowing ring plates 522 and all flow-interrupting ring plates 523 are integrally formed on the continuous main shaft 521. In this embodiment, the outer diameter of the flow-interrupting ring plate 523 is larger than the outer diameter of the flow-slowing ring plate 522.

[0051] Reference Figure 3 and Figure 4All the slow-flow ring plates 522 and all the flow-blocking ring plates 523 are spaced apart and equidistantly distributed along the length of the continuous main shaft 521, with one flow-blocking ring plate 523 located between two adjacent slow-flow ring plates 522. After the heat transfer fluid enters the inner cavity of the temperature-connecting channel 511, the slow-flow ring plates 522 and flow-blocking ring plates 523 with different outer diameters successively block the flow of the heat transfer fluid, greatly reducing the flow velocity of the heat transfer fluid in the inner cavity of the temperature-connecting channel 511. Correspondingly, the efficiency of heat transfer from the insulation block 51 to the inner cavity of the connecting channel 512 through the heat transfer fluid is greatly improved, making it easier for the inner cavity of the connecting channel 512 to form a stable heating space and remain in a constant high-temperature state of insulation for a long time.

[0052] The implementation principle of the high-precision gas heating structure in this application embodiment is as follows: the heat-conducting fluid enters the inner cavity of the temperature channel 511 through one connecting pipe 611 and five fixed connecting pipes 612. The heat-conducting fluid flows in the inner cavity of the temperature channel 511, causing the inner cavity of the insulation block 51 to be heated and heat accumulated quickly, thereby forming a stable constant high-temperature space in the inner cavity of the connecting channel 512 that is conducive to long-term heat insulation.

[0053] Gas enters the inner cavity of the gas guide pipe 21 and is rapidly heated through the connecting channel 512, ensuring uniform and steady heating of the gas within the gas guide pipe 21. Simultaneously, the gas guide pipe 21 itself possesses high-pressure and corrosion-resistant properties, making it less prone to damage and ensuring the continuity and stability of gas heating within it. The uniform and steady temperature rise within the connecting channel 512 caused by the continuous flow of the heat-conducting fluid further reduces the likelihood of violent gas reactions due to sudden localized temperature increases, further guaranteeing the continuity and stability of gas heating within the gas guide pipe 21.

[0054] The temperature measuring element 32 measures the temperature of the heated gas inside the gas guide pipe 21. This process allows the gas heating and temperature measurement to be carried out simultaneously, thereby effectively reducing the temperature difference caused by heating the gas and then measuring the temperature, and ensuring the accuracy of the temperature measuring element 32 in measuring the temperature of the heated gas.

[0055] Example 2

[0056] The difference between Embodiment 2 and Embodiment 1 of this application is that, referring to... Figure 5 The heating structure also includes an assembly part 4. The assembly part 4 includes an external fixing device 7, and the air guide pipe 21 is detachably installed in the side wall of the connecting channel 512 via the external fixing device 7.

[0057] Reference Figure 6The external fixing device 7 includes a heat-conducting cylinder 71 and an end-fixing mechanism 72. The heat-conducting cylinder 71 can be a steel cylinder and is welded to the side wall of the connecting channel 512. The gas duct 21 is disposed in the side wall of the heat-conducting cylinder 71, and the end-fixing mechanism 72 is used to fix the heat-conducting cylinder 71 in the side wall of the heat-conducting cylinder 71.

[0058] Reference Figure 6 The end-fixing mechanism 72 includes an extension plate 721, an end-positioning screw 722, and a locking nut 723. The extension plate 721 is fixed to the side wall of the gas guide pipe 21 by bolts, and the end-positioning screw 722 is vertically welded to the end wall of the heat-conducting cylinder 71. One end of the gas guide pipe 21 near the heat-conducting cylinder 71 is inserted into the inner cavity of the heat-conducting cylinder 71, and the extension plate 721 approaches the heat-conducting cylinder 71 until it abuts against the end wall of the heat-conducting cylinder 71. At this time, the end-positioning screw 722 passes through the extension plate 721, and the operator tightens the locking nut 723 onto the end-positioning screw 722, so that the extension plate 721 and the heat-conducting cylinder 71 are fixedly connected as a whole, thereby allowing the gas guide pipe 21 to be quickly installed inside the side wall of the heat-conducting cylinder 71. At the same time, it facilitates quick disassembly of the gas guide pipe 21 by operators to maintain and replace the gas guide pipe 21 that has been used for a long time, which helps to ensure the continuity and stability of the gas heating in the inner cavity of the gas guide pipe 21.

[0059] The implementation principle of the high-precision gas heating structure in this application embodiment is as follows: the heat-conducting cylinder 71, through its own metallic properties, helps to quickly conduct the heat of the insulation block 51 to the inner cavity of the gas-conducting pipe 21, thus ensuring the efficiency of gas heating in the inner cavity of the gas-conducting pipe 21.

[0060] After prolonged use, the operator can tighten the locking nut 723 to disengage it from the end screw 722. Then, the operator can pull the gas guide pipe 21 to detach it from the heat transfer cylinder 71, allowing for maintenance and replacement of the long-used gas guide pipe 21, thus ensuring the continuity and stability of subsequent gas heating within the gas guide pipe 21.

[0061] This application also discloses a method for applying a high-precision gas heating structure, which includes the following application steps:

[0062] Heating: One connecting pipe 611 continuously injects heat-conducting fluid into the inner cavity of the temperature channel 511 through five fixed connecting pipes 612, and another connecting pipe 611 continuously discharges heat-conducting fluid from the inner cavity of the temperature channel 511 through five fixed connecting pipes 612, so that there is a continuous flow of heat-conducting fluid in the inner cavity of the temperature channel 511, thereby making the interior of the insulation block 51 and the inner cavity of the connecting channel 512 a stable, constant high-temperature space that helps to provide long-term heat insulation.

[0063] Ventilation: Gas is introduced into the inner cavity of the gas guide pipe 21. The heat-conducting fluid conducts heat through the insulation block 51, so that the inner cavity of the gas guide pipe 21 heats the gas entering the inner cavity of the gas guide pipe 21 at a high temperature.

[0064] Temperature measurement: The temperature measuring element 32 located in the inner cavity of the gas guide pipe 21 measures the temperature of the heated flowing gas. This process allows the gas heating and temperature measurement to be carried out simultaneously, thereby effectively reducing the temperature difference phenomenon caused by heating the gas and then measuring the temperature, and ensuring the accuracy of the temperature measuring element 32 in measuring the temperature of the heated gas.

[0065] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-precision gas heating structure, characterized by: The application relates to a heating device for a thermal cycler, which comprises a heating part (1), a gas guiding part (2) and a temperature measuring part (3). The heating part (1) comprises a thermal cycler device (5) and a heat supply device (6), the heat supply device (6) is connected with the thermal cycler device (5) and is used for supplying heat to the thermal cycler device (5). The gas guiding part (2) comprises a gas guiding pipeline (21), a through channel (512) is arranged through the thermal cycler device (5) and is used for mounting the gas guiding pipeline (21), and the inner cavity of the gas guiding pipeline (21) is used for supplying gas. The temperature measuring part (3) comprises a pre-mounting frame (31) and a temperature measuring element (32), the temperature measuring element (32) is arranged in the inner cavity of the gas guiding pipeline (21) through the pre-mounting frame (31), and the temperature measuring element (32) is arranged in the inner cavity of the thermal cycler device (5) and is used for measuring the temperature of the gas in the inner cavity of the gas guiding pipeline (21) when the thermal cycler device (5) heats the gas. The thermal cycler device (5) comprises a heat preservation block (51), a plurality of temperature passing channels (511) are arranged on the heat preservation block (51), and all the temperature passing channels (511) are distributed along the height direction of the heat preservation block (51) at intervals. The heat supply device (6) comprises two groups of through connecting mechanisms (61), each group of the through connecting mechanisms (61) comprises a through connecting pipeline (611) and a plurality of fixed connecting pipelines (612), all the fixed connecting pipelines (612) are connected with the through connecting pipeline (611), all the fixed connecting pipelines (612) of one group of the through connecting mechanisms (61) are inserted into the side wall at one end of all the temperature passing channels (511) in a one-to-one correspondence, and all the fixed connecting pipelines (612) of the other group of the through connecting mechanisms (61) are inserted into the side wall at the other end of all the temperature passing channels (511) in a one-to-one correspondence. The through connecting pipeline (611) of one group of the through connecting mechanisms (61) is used for continuously injecting a heat conducting fluid into all the temperature passing channels (511), and the through connecting pipeline (611) of the other group of the through connecting mechanisms (61) is used for continuously discharging the heat conducting fluid in all the temperature passing channels (511) outward. The heat preservation block (51) is a silicon carbide block, the number of the temperature passing channels (511) is five, the five temperature passing channels (511) are distributed at intervals along the height direction of the heat preservation block (51), and the cross section of each temperature passing channel (511) along the horizontal direction is in the shape of.

2. The high-precision gas heating structure according to claim 1, characterized by: The thermal cycler device (5) further comprises a plurality of groups of flow slowing mechanisms (52), one group of the flow slowing mechanisms (52) is arranged in the side wall of one temperature passing channel (511); each group of the flow slowing mechanisms (52) comprises a continuous main shaft (521) and a plurality of flow slowing ring plates (522), all the flow slowing ring plates (522) are arranged on the continuous main shaft (521), and all the flow slowing ring plates (522) are distributed along the length direction of the continuous main shaft (521) at intervals.

3. The high precision gas heating structure according to claim 2, characterized by: The slow flow mechanism (52) further comprises a plurality of flow interruption ring plates (523), all of which are arranged on the continuous main shaft (521), and one of the flow interruption ring plates (523) is arranged between two adjacent slow flow ring plates (522).

4. The high precision gas heating structure according to claim 3, characterized by: The gas guide pipe (21) is fixedly arranged in the side wall of the through channel (512).

5. The high precision gas heating structure according to claim 4, characterized by: The heating structure further comprises an assembly part (4), which comprises an external fixing device (7) for detachably mounting the gas guide pipe (21) in the side wall of the through channel (512).

6. The high precision gas heating structure according to claim 5, characterized by: The external fixing device (7) comprises a heat conduction cylinder (71) and an end fixing mechanism (72), the heat conduction cylinder (71) is arranged in the side wall of the through channel (512), the gas guide pipe (21) is arranged in the side wall of the heat conduction cylinder (71), and the end fixing mechanism (72) is used for connecting the gas guide pipe (21) and the heat conduction cylinder (71).

7. The high precision gas heating structure according to claim 6, characterized by: The end fixing mechanism (72) comprises an extension side plate (721), an end position lead screw (722) and a locking nut (723), the extension side plate (721) is arranged on the gas guide pipe (21), the end position lead screw (722) is arranged on the heat conduction cylinder (71), and the end position lead screw (722) is arranged in the extension side plate (721), and the locking nut (723) is threadedly connected to the end position lead screw (722) to connect the extension side plate (721) and the heat conduction cylinder (71).

8. The method of claim 7, wherein: The application steps comprise: Heat supply: the heat supply device (6) continuously injects heat-conducting fluid into the thermal cycle device (5) to heat the inner cavity of the through channel (512) for standby use; Ventilation: gas is introduced into the inner cavity of the gas guide pipe (21), the thermal cycle device (5) heats the gas guide pipe (21) through heat conduction, the inner cavity of the gas guide pipe (21) is heated, and then the gas in the inner cavity of the gas guide pipe (21) is heated; Temperature measurement: the temperature measuring element (32) in the inner cavity of the gas guide pipe (21) measures the temperature of the flowing gas after heating.

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