Gasifier thermocouple

Abstract

The application relates to a gasifier thermocouple, in particular to a gasifier thermocouple. The gasifier thermocouple comprises a thermocouple body, a driving assembly and a reset assembly. The probe is protected by the blocking assembly, the position of the blocking assembly is adjusted according to the air pressure change in the gasifier, when the gasifier is in the working state, the airflow contacts the blocking surface formed by the blocking assembly, drives the blocking assembly to move upwards along the outside of the probe, adjusts the probe to the exposed state, detects the temperature of the airflow generated by the gasifier through the exposed probe, when the gasifier is not working, the blocking assembly re-wraps the outside of the probe, prevents the incompletely combusted impurities from adhering to the outside of the probe, and simultaneously, the cleaning assembly moves along with the movement of the blocking assembly, the soft ring reversely drives the cleaning assembly to slide downwards, the protrusion formed by the cleaning assembly scrapes the outside of the probe, and the protrusion formed by the cleaning assembly is cleaned.

Description

Technical Field

[0001] This invention relates to a gasifier thermocouple, and more specifically, to a gasifier thermocouple. Background Technology

[0002] With rapid economic development and severe environmental damage, energy issues are becoming increasingly urgent. People are forced to seek new energy sources and products to save both energy and money. In order to keep pace with the times, gasifiers have emerged. Gasifiers are simple in structure, highly efficient and energy-saving, clean and environmentally friendly, safe and hygienic (no smoke during combustion), do not require auxiliary energy or any other chemical additives, retain the traditional practice of direct combustion during ignition, are economical and practical, inexpensive, and have convenient and low-cost fuel collection.

[0003] During the operation of a gasifier, temperature monitoring is frequently required to prevent abnormal internal temperatures. Most existing gasifier temperature monitoring methods utilize thermocouples. Thermocouples are commonly used temperature-sensing elements in temperature measuring instruments; they directly measure temperature and convert the temperature signal into a thermoelectric potential signal, which is then converted into the temperature of the measured medium by an electrical instrument. However, because the existing gasifier thermocouple sensing ends are continuously exposed inside the gasifier, when the internal temperature decreases, the resulting gas pressure decreases, and the temperature also drops. At this time, some unburned substances inside the gasifier will produce impurities. These impurities flow with the gas flow to the gasifier thermocouple sensing ends and adhere to their outer surface. Over time, excessive impurities adhere to the outer surface of the gasifier thermocouple sensing ends, significantly reducing their temperature sensing effectiveness and accuracy. Furthermore, the solidified impurities are difficult to clean later, increasing the cleaning workload of the gasifier thermocouple sensing ends.

[0004] To address the aforementioned issues, a gasifier thermocouple is urgently needed. Summary of the Invention

[0005] The purpose of this invention is to provide a gasifier thermocouple to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, a gasifier thermocouple is provided, comprising a thermocouple body, a measuring head, a probe at the bottom of the measuring head, a driving assembly near the bottom of the probe, the driving assembly including a blocking assembly, the blocking assembly protruding from the outside of the probe to form a blocking surface for guiding airflow to drive the blocking assembly to move up and down along the probe, a cleaning assembly at the top of the blocking assembly, a protrusion forming between the cleaning assembly and the outside of the probe, a reset assembly at the top of the cleaning assembly, the reset assembly including a collar, and a soft ring at the top of the collar;

[0007] When the gas pressure in the gasifier increases, the airflow speed increases. When the airflow comes into contact with the blocking surface formed by the blocking component, it will drive the blocking component to move upward along the outside of the probe. At this time, the probe is in an exposed state. At the same time, the probe drives the collar to move upward through the cleaning component, causing the soft ring to be in a compressed state. When the gas pressure in the gasifier decreases, the pressure provided by the airflow is difficult to maintain the compressed state of the soft ring. The soft ring reverses and drives the cleaning component to slide downward. The protrusion formed by the cleaning component scrapes the outside of the probe.

[0008] As a further improvement to this technical solution, the blocking component includes a shielding ring, which has a funnel-shaped structure, and the cross-sectional dimension of the top end of the shielding ring is smaller than that of its bottom end. The shielding ring is slidably connected to the outside of the probe, and the bottom end of the shielding ring protrudes outward and forms a blocking surface with the outside of the probe.

[0009] As a further improvement to this technical solution, the cleaning component includes an outer ring, the bottom end of which is connected to the top end of the shielding ring, and the top end of which is connected to the bottom end of the collar. The outer ring is sleeved on the outside of the probe and maintains a sliding connection with the outside of the probe. A plurality of inner grooves are formed on the inner side of the outer ring, and each inner groove is arranged in an array on the inner side of the outer ring. A plurality of brushes are provided at the inner end of the inner groove, and the ends of the brushes protrude out of the outer side of the inner groove and contact the outside of the probe.

[0010] As a further improvement to this technical solution, an edge arc plate is provided at the bottom edge of the shielding ring, and the edge arc plate bends toward the top of the shielding ring.

[0011] As a further improvement to this technical solution, a gap is reserved between the edge arc plate and the bottom end of the shielding ring.

[0012] As a further improvement to this technical solution, the bottom end of the shielding ring is provided with several wiping plates, and two adjacent wiping plates are in contact with each other. The top end of the shielding ring is in contact with the bottom end of the probe. A connecting shaft is provided on the side of the wiping plate. The connecting shaft is rotatably connected to the inner side of the bottom end of the shielding ring. The connecting shaft has a built-in torsion spring.

[0013] As a further improvement to this technical solution, the top of the wiping plate is provided with several wiping rods, and the top of the wiping rods contacts the bottom of the probe.

[0014] As a further improvement to this technical solution, a rotating ring is provided at the bottom end of the collar, an internal thread is provided at the top end of the rotating ring, an external thread is provided on the outer side of the probe, the internal thread is threadedly connected to the probe, the rotating ring is rotatably connected to the bottom end of the collar, and the bottom end of the rotating ring is connected to the top end of the outer ring.

[0015] As a further improvement to this technical solution, a rotating groove is provided at the top of the rotating ring, and a bottom ring is provided at the bottom of the collar, with the bottom ring and the rotating groove maintaining a rotatable connection.

[0016] As a further improvement to this technical solution, a plurality of outer grooves are provided on the outer side of the shielding ring, and the outer grooves are arranged in an array on the outer side of the shielding ring.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. In this gasifier thermocouple, a blocking component is used to protect the probe. The position of the blocking component is adjusted by the change in gas pressure inside the gasifier. When the gasifier is in operation, the airflow comes into contact with the blocking surface formed by the blocking component, which will drive the blocking component to move upward along the outside of the probe, adjusting the probe to the exposed state. The temperature of the airflow generated by the gasifier is detected by the exposed probe. When the gasifier is not in operation, the blocking component wraps around the outside of the probe again to prevent unburned impurities from adhering to the outside of the probe. At the same time, the cleaning component moves with the blocking component. The soft ring drives the cleaning component to slide downward in the opposite direction. The protrusion formed by the cleaning component scrapes the outside of the probe and cleans it.

[0019] 2. In the thermocouple of this gasifier, the arc surface formed by the edge arc plate slows down the time for the airflow to exit the bottom of the shielding ring, which plays a role in gathering the airflow. This allows the thrust generated by the airflow to be continuously utilized, enabling the bottom of the shielding ring to receive sufficient power and accelerate the upward movement of the shielding ring. This prevents the airflow from having too short a contact time with the bottom of the shielding ring, making it difficult to provide sufficient power to the shielding ring and causing the shielding ring to be unable to adjust its position. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0022] Figure 3 For the present invention Figure 2 A magnified view of part A;

[0023] Figure 4 This is a schematic diagram of the thermocouple body structure of the present invention;

[0024] Figure 5 This is a structural breakdown diagram of the drive component of the present invention;

[0025] Figure 6 This is a split sectional view of the shielding ring structure of the present invention;

[0026] Figure 7For the present invention Figure 6 A magnified view of section B;

[0027] Figure 8 This is a schematic diagram of the wiping plate structure of the present invention;

[0028] Figure 9 This is a schematic diagram of the outer ring structure of the present invention;

[0029] Figure 10 This is an exploded view of the reset component structure of the present invention.

[0030] The meanings of the labels in the diagram are as follows:

[0031] 10. Thermocouple body; 110. Measuring head; 120. Probe; 121. External thread;

[0032] 20. Drive assembly; 210. Shielding ring; 211. Wiping plate; 2111. Connecting shaft; 2112. Wiping rod; 212. Edge arc plate; 220. Outer ring; 221. Inner groove; 222. Brush;

[0033] 30. Reset assembly; 310. Collar; 320. Flexible ring; 330. Rotary ring; 331. Internal thread. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0036] Please see Figures 1-10As shown, a gasifier thermocouple is provided, including a thermocouple body 10, a measuring head 110, a probe 120 at the bottom of the measuring head 110, a driving component 20 at the outer side of the probe 120 near the bottom, the driving component 20 including a blocking component, the outer side of the blocking component protruding from the outer side of the probe 120 to form a blocking surface, used to guide the airflow to drive the blocking component to move up and down along the probe 120, a cleaning component at the top of the blocking component, a protrusion forming between the cleaning component and the outer side of the probe 120, a reset component 30 at the top of the cleaning component, the reset component 30 including a collar 310, and a soft ring 320 at the top of the collar 310;

[0037] When the gas pressure in the gasifier increases, the airflow speed increases. When the airflow comes into contact with the blocking surface formed by the blocking component, it will drive the blocking component to move upward along the outside of the probe 120. At this time, the probe 120 is in an exposed state. At the same time, the probe 120 drives the collar 310 to move upward through the cleaning component, causing the soft ring 320 to be in a compressed state. When the gas pressure in the gasifier decreases, the pressure provided by the airflow is difficult to maintain the compressed state of the soft ring 320. The soft ring 320 drives the cleaning component to slide downward in the opposite direction. The protrusion formed by the cleaning component scrapes the outside of the probe 120.

[0038] In practical use, the probe 120 is first inserted into the gasifier. In the initial state, the blocking component is located in the outer area of ​​the probe 120, covering the probe 120. During the operation of the gasifier, as the combustible material continues to burn, the gas pressure in the gasifier increases, and the airflow speed increases. After the airflow comes into contact with the blocking surface formed by the blocking component, it will drive the blocking component to move upward along the outer side of the probe 120. At this time, the probe 120 is exposed. The temperature of the airflow generated by the gasifier is detected by the exposed probe 120. At the same time, as the probe 120 rises, the cleaning component will drive the collar 310 to move upward, causing the soft ring 320 to be in a compressed state. When the combustible material is completely burned, the gas pressure in the gasifier decreases, and the pressure generated by the airflow is difficult to maintain the compressed state of the soft ring 320. The soft ring 320 drives the cleaning component to slide downward in the opposite direction. The protrusion formed by the cleaning component scrapes the outer side of the probe 120.

[0039] This invention protects the probe 120 by using a blocking component. The position of the blocking component is adjusted by changes in the gas pressure inside the gasifier. When the gasifier is in operation, as the combustible material burns, the gas pressure increases. When the airflow comes into contact with the blocking surface formed by the blocking component, it drives the blocking component to move upwards along the outside of the probe 120, exposing the probe 120. The exposed probe 120 then detects the temperature of the airflow generated by the gasifier. When the gasifier is not in operation, the blocking component re-wraps the probe 120, isolating it and preventing unburned impurities from adhering to the probe 120, which would make cleaning difficult and affect the probe's temperature sensing ability. Simultaneously, the cleaning component moves with the blocking component. When the gasifier is not in operation, the pressure generated by the airflow is insufficient to maintain the compression state of the soft ring 320. The soft ring 320 then drives the cleaning component downwards, and the protrusions formed by the cleaning component scrape the outside of the probe 120. Even if impurities adhere to the outside of the probe 120, they can be cleaned by the protrusions formed by the cleaning component.

[0040] In addition, the blocking assembly includes a shielding ring 210, which has a funnel-shaped structure and a smaller top cross-sectional dimension than its bottom cross-sectional dimension. The shielding ring 210 is slidably connected to the outside of the probe 120, and the bottom outer side of the shielding ring 210 protrudes outward, forming a blocking surface with the outside of the probe 120. When the gasifier is in operation, the gas pressure inside the gasifier increases, and the resulting airflow will flow upward along the gasifier. When the airflow forms a blocking surface with the bottom of the shielding ring 210, the airflow will exert a thrust on the bottom of the shielding ring 210, causing the shielding ring 210 to move upward along the probe 120, exposing the temperature detection area of ​​the probe 120. At this time, the probe 120 can detect the temperature of the airflow inside the gasifier. When the gasifier finishes operation, the gas pressure inside the gasifier decreases, and the shielding ring 210 will reset, re-wrapping the probe 120, thereby preventing unburned impurities from adhering to the outside of the probe 120 and affecting the detection accuracy of the probe 120.

[0041] Furthermore, the cleaning component includes an outer ring 220, the bottom of which is connected to the top of the shielding ring 210, and the top of which is connected to the bottom of the collar 310. The outer ring 220 is fitted onto the outside of the probe 120 and maintains a sliding connection with the outside of the probe 120. Several inner grooves 221 are formed on the inner side of the outer ring 220, arranged in an array. Several brushes 222 are provided at the inner ends of the inner grooves 221, with the ends of the brushes 222 protruding outwards from the outer side of the inner grooves 221 and contacting the outside of the probe 120. In practical use, when the thrust generated by the airflow in the gasifier is insufficient to maintain the compressed state of the soft ring 320, the soft ring 320 will return to its original shape, causing the outer ring 220 to move downwards along the outside of the probe 120. During this process, the ends of each brush 222 scrape the outside of the probe 120 to prevent impurities from accumulating and affecting the detection accuracy of the probe 120.

[0042] Furthermore, an edge arc plate 212 is provided at the bottom edge of the shielding ring 210, which bends towards the top of the shielding ring 210. In actual use, when the airflow comes into contact with the bottom of the shielding ring 210, the arc surface formed by the edge arc plate 212 slows down the time it takes for the airflow to flow out of the bottom of the shielding ring 210, thus concentrating the airflow. This allows the thrust generated by the airflow to be continuously utilized, ensuring that the bottom of the shielding ring 210 receives sufficient power, accelerating the upward movement of the shielding ring 210. This prevents the airflow from having too short a contact time with the bottom of the shielding ring 210, which would make it difficult to provide sufficient power to the shielding ring 210 and prevent the shielding ring 210 from being unable to adjust its position.

[0043] Specifically, a gap is reserved between the edge arc plate 212 and the bottom end of the shielding ring 210. In actual use, when the airflow reaches the bottom end of the shielding ring 210, some of the airflow will flow along the arc surface of the edge arc plate 212 into the inner end of the reserved gap between the shielding ring 210 and the edge arc plate 212. The airflow is guided through the gap, further concentrating the airflow and improving the airflow utilization rate.

[0044] Since the bottom of probe 120 is always exposed, although it is difficult for impurities to adhere to the bottom of probe 120, as the gas generated during the combustion process rises continuously, the pollutants in the gas will come into direct contact with the bottom of probe 120. Over time, this can easily damage the bottom of probe 120 and affect its service life. In addition, the bottom of shielding ring 210 is provided with several wiping plates 211, with adjacent wiping plates 211 fitting together. The top of shielding ring 210 fits against the bottom of probe 120. A connecting shaft 2111 is provided on the side of wiping plate 211, and the connecting shaft 2111 is rotatably connected to the inner side of the bottom of shielding ring 210. The connecting shaft 2111 has a built-in torsion bar. The spring, through the set wiping plate 211, protects the bottom end of the probe 120. When the shielding ring 210 wraps around the outside of the probe 120, the wiping plates 211 are arranged in an array at the bottom end of the probe 120. The shielding surface formed by the wiping plates 211 protects the bottom end of the probe 120. When the shielding ring 210 moves upward, the shielding ring 210 will drive the wiping plates 211 to move together. The wiping plates 211 will be blocked by the bottom end of the probe 120. The pressure formed between the two will drive the wiping plates 211 to rotate around the connecting shaft 2111. At this time, the wiping plates 211 will rotate to a state that is perpendicular to the bottom end of the probe 120 and move upward along the side of the probe 120.

[0045] Furthermore, the top of the wiping plate 211 is provided with several wiping rods 2112, the tops of which contact the bottom of the probe 120. In actual use, when the shielding ring 210 returns to the position outside the bottom of the probe 120, each wiping plate 211 is driven to reset by a torsion spring, and each wiping plate 211 gradually adheres to the bottom of the probe 120. During this process, the tops of the wiping plates 211 slide against the bottom of the probe 120, and the wiping rods 2112 provided at the top of the wiping plates 211 will scrape the bottom of the probe 120, further cleaning the bottom of the probe 120 and preventing contaminants from adhering.

[0046] Furthermore, a rotating ring 330 is provided at the bottom of the collar 310, and an internal thread 331 is provided at the top of the rotating ring 330. An external thread 121 is provided on the outer side of the probe 120. The internal thread 331 is threadedly connected to the probe 120, and the rotating ring 330 is rotatably connected to the bottom of the collar 310. The bottom of the rotating ring 330 is connected to the top of the outer ring 220. In actual use, as the collar 310 moves up and down along the outer side of the probe 120, the rotating ring 330 rotates threadedly with the outer side of the probe 120. During the rotation of the rotating ring 330, the outer ring 220 will rotate together, causing the outer ring 220 to rotate and scrape along the outer side of the probe 120, thereby achieving uniform cleaning of different positions on the outer side of the probe 120 and further improving the cleaning effect of the outer ring 220.

[0047] In addition, a rotating groove is provided at the top of the rotating ring 330, and a bottom ring is provided at the bottom of the collar 310. The bottom ring is rotatably connected to the rotating groove. In actual use, the bottom ring maintains a rotatable connection with the rotating ring 330, and at the same time, it can maintain the connection between the rotating ring 330 and the collar 310 during the rotation of the rotating ring 330, preventing the rotating ring 330 from disengaging from the collar 310 during the rotation, which would prevent the blocking ring 210 from resetting.

[0048] In addition, several outer grooves are provided on the outer side of the shielding ring 210, and these grooves are arranged in an array on the outer side of the shielding ring 210. In actual use, when part of the airflow generated in the gasifier comes into contact with the bottom of the shielding ring 210, it will drive the shielding ring 210 to move along the outer side of the probe 120. At this time, the remaining gas will flow through the outer side of the shielding ring 210. The outer grooves increase the airflow guidance effect of the outer side of the shielding ring 210, preventing the remaining gas from being blocked by the outer side of the shielding ring 210. This would prevent the gas from accumulating on the outer side of the shielding ring 210 for a long time, which could easily lead to excessive pressure on the outer side of the shielding ring 210 and damage to the shielding ring 210.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gasifier thermocouple, comprising a thermocouple body (10), the thermocouple body (10) including a measuring head (110), a probe (120) disposed at the bottom end of the measuring head (110), a driving assembly (20) disposed on the outer side of the probe (120) near the bottom end, the driving assembly (20) including a blocking assembly, the outer side of the blocking assembly protruding from the outer side of the probe (120) to form a blocking surface, used to guide the airflow to drive the blocking assembly to move up and down along the probe (120), a cleaning assembly disposed at the top end of the blocking assembly, a protrusion forming between the cleaning assembly and the outer side of the probe (120), a reset assembly (30) disposed at the top end of the cleaning assembly, the reset assembly (30) including a collar (310), a soft ring (320) disposed at the top end of the collar (310); characterized in that: The blocking assembly includes a shielding ring (210), which has a funnel-shaped structure, and the top cross-sectional dimension of the shielding ring (210) is smaller than that of its bottom cross-sectional dimension. The shielding ring (210) is slidably connected to the outside of the probe (120), and the bottom outer side of the shielding ring (210) protrudes outward and forms a blocking surface with the outside of the probe (120). The cleaning assembly includes an outer ring (220), the bottom end of which is connected to the top end of the shielding ring (210). The top end of the outer ring (220) is connected to the bottom end of the collar (310). The outer ring (220) is sleeved on the outside of the probe (120) and maintains a sliding connection with the outside of the probe (120). The inner side of the outer ring (220) is provided with a plurality of inner grooves (221). Each inner groove (221) is arranged in an array on the inner side of the outer ring (220). The inner end of the inner groove (221) is provided with a plurality of brushes (222). The end of the brush (222) protrudes out of the outer side of the inner groove (221) and contacts the outside of the probe (120).

2. The gasifier thermocouple according to claim 1, characterized in that: An edge arc plate (212) is provided at the bottom edge of the shielding ring (210), and the edge arc plate (212) bends toward the top of the shielding ring (210).

3. The gasifier thermocouple according to claim 2, characterized in that: A gap is reserved between the edge arc plate (212) and the bottom end of the shielding ring (210).

4. The gasifier thermocouple according to claim 3, characterized in that: The bottom end of the shielding ring (210) is provided with a plurality of wiping plates (211), and two adjacent wiping plates (211) are in contact with each other. When the shielding ring (210) slides down to the lowest position, the wiping plate (211) is in contact with the bottom end of the probe (120). A connecting shaft (2111) is provided on the side of the wiping plate (211), and the connecting shaft (2111) is rotatably connected to the inner side of the bottom end of the shielding ring (210). The connecting shaft (2111) has a built-in torsion spring.

5. The gasifier thermocouple according to claim 4, characterized in that: The top of the wiping plate (211) is provided with a plurality of wiping rods (2112), the top of the wiping rods (2112) being in contact with the bottom of the probe (120).

6. The gasifier thermocouple according to claim 1, characterized in that: The collar (310) has a rotating ring (330) at its bottom end, and the rotating ring (330) has an internal thread (331) at its top end. The probe (120) has an external thread (121) on its outer side. The internal thread (331) is threadedly connected to the probe (120). The rotating ring (330) is rotatably connected to the bottom end of the collar (310). The bottom end of the rotating ring (330) is connected to the top end of the outer ring (220).

7. The gasifier thermocouple according to claim 6, characterized in that: The top of the rotating ring (330) is provided with a rotating groove, and the bottom of the collar (310) is provided with a bottom ring, which is rotatably connected to the rotating groove.

8. The gasifier thermocouple according to claim 4, characterized in that: The shielding ring (210) has several outer grooves on its outer side, and the outer grooves are arranged in an array on the outer side of the shielding ring (210).

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