Zirconium oxide analyzer sampling equipment and method

Abstract

The invention relates to sampling equipment of a zirconium oxide analyzer, and belongs to the technical field of online analysis of oxygen content of flue gas. Comprising a zirconium oxide detector, the zirconium oxide detector comprises an instrument seat, a connecting guide pipe, a first flange plate and a detector probe, the connecting guide pipe is arranged at the bottom of the zirconium oxide detector, the first flange plate is fixedly arranged above the outer wall of the connecting guide pipe in a sleeving mode, and the detector probe is arranged at the bottom end of the connecting guide pipe and connected with the instrument seat through a cable; the device further comprises a mounting sleeve and an automatic sampling mechanism; the invention further discloses a using method. According to the invention, through a convection sampling mode, instrument air does not need to be used, so that the operation cost is saved; the damage of water vapor to the zirconium pool is reduced during detection, and the service life of the whole equipment is prolonged; meanwhile, operation is stable, and accurate reference data are provided; in addition, the whole equipment is small in maintenance amount, operation cost is reduced, and the device has the advantages of being simple in structure, low in investment, energy-saving, safe and high in practicability.

Description

Technical Field

[0001] The invention belongs to the technical field of online analysis of flue gas oxygen content and relates to a zirconia analyzer sampling device and method. Background Art

[0002] Zirconia analyzers are used to analyze the oxygen content of flue gases from various industrial boilers and kilns, improving combustion efficiency, saving energy, and reducing environmental pollution. Due to their simple structure, compact size, easy installation, convenient maintenance, fast response, wide measurement range, and high accuracy, they are widely used in the power, metallurgy, heating, building materials, and electronics sectors.

[0003] Currently, the sampling method for zirconia analyzers used in the front-end process of ammonia synthesis plants is vacuum sampling. This involves rapidly passing instrument air through the sampling device, creating a negative pressure. Gases in the furnace are then drawn into the zirconia sample gas detection chamber for testing. During operation, the zirconia cell itself heats to 750°C and operates normally at 750°C. The flue contains water vapor generated by natural gas combustion. Using vacuum sampling, this water vapor is carried to the sample gas detection chamber. When the sample gas is extracted, the water vapor cools against the pipe wall, forming condensate. This condensate is retained in the sample gas detection chamber and comes into contact with the zirconium cell, which can easily rupture the cell and damage the zirconia analyzer. Therefore, we have developed a sampling device and method for zirconia analyzers to address these issues. Summary of the Invention

[0004] In view of this, the present invention provides a zirconia analyzer sampling device and method to solve the problem that the traditional vacuum sampling method will bring water vapor in the flue into the sample gas detection chamber, and the condensed water will be retained in the sample gas detection chamber and contact with the zirconium cell, which may easily explode the "zirconium cell" and damage the zirconia analyzer.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a zirconia analyzer sampling device, comprising a zirconia detector, the zirconia detector comprising an instrument base, a connecting conduit, a first flange, and a detector probe, the connecting conduit being disposed at the bottom of the zirconia detector, the first flange being fixedly sleeved above the outer wall of the connecting conduit, the detector probe being disposed at the bottom end of the connecting conduit and connected to the instrument base via a cable, and further comprising: An installation sleeve is used for fixing and protecting the zirconia detector; an automatic sampling mechanism connected to the bottom end of the mounting sleeve, wherein the connecting conduit is protected and mounted in the mounting sleeve, and the detector probe extends into the interior of the automatic sampling mechanism; The connecting pipe is fixedly connected to one side of the flue gas pipe, and one end of the connecting pipe extends outward and is sealed and fixedly connected to one end of the automatic sampling mechanism, so that the flue gas completes automatic sampling in a convection manner. At the same time, the flue gas completes automatic detection of oxygen content through the detector probe during the convection process.

[0006] Furthermore, the installation sleeve includes a protective sleeve, the outer wall of the protective sleeve is threadedly sleeved with an adjusting sleeve, and the top end of the adjusting sleeve extends upward and is fixedly sleeved with a second flange used in conjunction with the first flange.

[0007] Furthermore, the outer wall of the adjusting sleeve is provided with a first anti-slip pattern.

[0008] Furthermore, a limiting ring is fixedly connected to the lower inner portion of the protective sleeve, and a fixing ring that interferes with the limiting ring is provided on the bottom fixed sleeve of the outer wall of the connecting conduit.

[0009] Furthermore, a sealing ring is fixedly provided on the top of the limiting ring, and the bottom of the fixing ring is pressed against the sealing ring.

[0010] Furthermore, the automatic sampling mechanism includes a sampling tube, and the sampling tube is horizontally arranged and vertically fixedly connected to the bottom end of the protective sleeve. The detector probe extends into the sampling tube. One end of the sampling tube is fixedly sleeved with a third flange, and one end of the connecting pipe is fixedly sleeved with a fourth flange used in conjunction with the third flange.

[0011] Furthermore, the automatic sampling mechanism also includes a gas convection component, an adjustment component and a sealing component. The gas convection component is arranged between the sampling tube, the connecting pipe and the flue gas pipe, and is used for flue gas convection between the flue gas pipe and the sampling tube. The adjustment component is arranged inside the sampling tube and is positioned and connected to the gas convection component, and is used to adjust the extension length of the gas convection component. The sealing component is arranged at one end of the sampling tube away from the connecting pipe, and is used to seal one end of the sampling tube, and the sealing component is connected to the adjustment component.

[0012] Furthermore, the gas convection component includes a pipe connecting seat, an air inlet pipe and an air outlet pipe. The air inlet pipe and the air outlet pipe are symmetrically fixed and pass through one side of the pipe connecting seat, and the air inlet pipe is located directly below the air outlet pipe. The adjacent ends of the air inlet pipe and the air outlet pipe are both sealed structures and extend outward through the connecting pipe. The end of the air inlet pipe close to the seal is provided with an air inlet hole opening downward, and the end of the air outlet pipe close to the seal is provided with an air outlet hole opening upward. The end of the air inlet pipe away from the seal extends toward the interior of the sampling tube and is integrally formed with a U-shaped tube used in conjunction with the detector probe.

[0013] Furthermore, the sealing assembly includes a sealing disk that is sealed against one end of the sampling tube away from the connecting pipe. A connecting ring is rotatably connected to the side of the sealing disk close to the sampling tube, and the connecting ring is threadedly connected to the outer wall of the sampling tube.

[0014] Furthermore, one side of the sealing disk is symmetrically fixed with two positioning rods located on the inner side of the connecting ring, and one end of the two positioning rods extends to the outside of the connecting ring. One end of the sampling tube is symmetrically provided with two positioning holes that are plugged into the corresponding positioning rods.

[0015] Furthermore, the outer side surface of the connecting ring is provided with a second anti-slip groove.

[0016] Furthermore, the adjustment assembly includes an adjustment seat that is sealingly and slidingly connected to the inner wall of the sampling tube, an adjustment rod is rotatably connected to one side of the sealing disk, one end of the adjustment rod extends to the outside of the sampling tube and is fixedly connected to an operating handle, and the other end of the adjustment rod extends to the inside of the sampling tube and is rotatably connected to a connecting block, one side of the connecting block is in contact with an inner wall of one side of the sampling tube and is provided with a positioning screw hole, and the outer wall of the sampling tube close to the third flange is threadedly connected to a positioning bolt that is threadedly connected to the positioning screw hole, the outer wall of the adjusting rod is provided with a threaded section, and the adjusting seat is threadedly sleeved on the threaded section.

[0017] Furthermore, a slot is provided on the side of the adjustment seat away from the sealing disk, which is adapted to engage with the pipe connecting seat; a through hole is provided on the side of the adjustment seat close to the sealing disk, which is connected to the slot; and a protrusion is integrally provided on one side of the pipe connecting seat, which is adapted to engage with the through hole.

[0018] Furthermore, the four corners of the inner wall of the slot near the through hole are provided with connecting screw holes, and the four corners of one side of the pipe connecting seat are threadedly connected with connecting screws that are threadedly connected to the corresponding connecting screw holes.

[0019] Furthermore, a sealing partition is sealingly and slidingly connected to the side of the sampling tube close to the sealing disk, and the sealing partition sealing sleeve is arranged on the outer wall of the adjustment rod, and the sealing partition and the adjustment seat are fixedly connected to the same connecting rod on the side close to each other.

[0020] A method for using a zirconia analyzer sampling device comprises the following steps: S1. Installation of the adjustment seat: First, insert the adjustment seat into the sampling tube through the adjustment rod, and at the same time, insert the two positioning rods into the two positioning holes to determine the orientation of the adjustment rod, adjustment seat and connecting block. Then, screw the connecting ring onto the outer wall of the sampling tube until the sealing disk is sealed against one end of the sampling tube. Then, fix the connecting block by turning the positioning bolt. Then, turn the adjustment rod to adjust the position of the adjustment seat until the adjustment seat moves toward the end of the sampling tube and contacts the connecting block. S2. Installation of pipe connection seat: Insert one side of the pipe connection seat into one end of the sampling tube and position it with the slot and through hole of the adjustment seat, then rotate the connecting screw to connect it with the connecting screw hole to complete the positioning and fixation between the pipe connection seat and the adjustment seat; S3. Adjustment of the extension length of the air inlet and outlet pipes: After installing the pipe connection seat, extend the sealed ends of the air inlet pipe and the air outlet pipe through the connecting pipe into the flue gas pipe. At this time, according to the length of the extension into the flue gas pipe, rotate the adjustment rod to drive the adjustment seat to move, thereby completing the position adjustment of the pipe connection seat, thereby adjusting the extension length of the air inlet pipe and the air outlet pipe to adapt to the installation of flue gas pipes with different inner diameters. After adjustment, connect the third flange and the fourth flange with bolts to complete the fixation between the sampling tube and the connecting pipe. S4. Installation of zirconia detector: Finally, extend the connecting tube downward into the protective sleeve, and through the interference and limitation of the fixing ring and the limiting ring, position the detector probe and extend it into the sampling tube. Then, according to the overall length of the zirconia detector, rotate the adjusting sleeve to adjust its extension height until the second flange contacts the first flange. Finally, fix it with bolts to complete the fixed protection installation of the zirconia detector on the mounting sleeve. S5. Automatic detection of oxygen content: After the entire device is installed, the flue gas in the flue gas duct first enters the air inlet pipe from the air inlet hole, and then flows out from the U-shaped tube. The flue gas passes through the detector probe to complete the automatic detection of oxygen content. The detected flue gas flows in the sampling tube and enters the air outlet pipe, and finally flows back to the flue gas duct from the air outlet. The convection of the flue gas completes the effect of automatic sampling and detection.

[0021] The beneficial effects of the present invention are: The present invention replaces the existing vacuum sampling method with a gas convection sampling method that utilizes the differential pressure principle. Flue gas is automatically directed into the sampling tube via the intake pipe, and the oxygen content is automatically detected by a detector probe. The detected flue gas is then returned to the flue gas duct through the exhaust pipe. The convection sampling method eliminates the need for instrument air, and the automatic sampling mechanism automatically samples as the flue gas flows through the flue, thereby saving the use of instrument air. Simultaneously, after the flue gas enters the intake pipe, the water vapor in the flue gas contacts the intake pipe wall as the gas flows, condensing on the pipe wall. The condensed water then flows back into the furnace, significantly reducing the amount of water vapor entering the sample gas detection chamber, thereby minimizing damage to the zirconium oxide cell caused by water vapor. By rotating the adjustment lever to drive the adjustment seat to move, the position of the pipe connection seat can be adjusted, and the extension length of the intake and outlet pipes can be adjusted according to flue gas ducts with different inner diameters, thereby improving the flexibility of installation and use. In addition, by rotating the connecting ring to remove the sealing disk, the adjusting seat can be pulled outward at the same time. The soot attached to the inner wall of the sampling tube can be scraped off through the sealing sliding between the adjusting seat and the inner wall of the sampling tube, thereby achieving a cleaning effect. Moreover, through quick disassembly and assembly, the maintenance and replacement of the entire sampling device can be more convenient.

[0022] The present invention adopts a convection sampling method, which does not require the use of instrument air and saves operating costs; it also reduces the damage of water vapor to the zirconium cell during detection, thereby increasing the service life of the entire equipment; at the same time, it operates stably and provides accurate reference data; in addition, the entire equipment requires little maintenance, reduces operating costs, and has the characteristics of simple structure, low investment, energy saving, safety, and high practicality.

[0023] Other advantages, objects, and features of the present invention will be described in part in the following description and, in part, will be apparent to those skilled in the art upon examination of the following description or may be learned from practice of the present invention. The objects and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below with reference to the accompanying drawings, in which: Figure 1 This is a three-dimensional diagram of the overall connection structure of a zirconia analyzer sampling device of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the overall connection structure of a zirconia analyzer sampling device of the present invention; Figure 3 A three-dimensional diagram of the overall structure of a zirconia detector of a zirconia analyzer sampling device of the present invention; Figure 4This is a three-dimensional cross-sectional view of the overall structure of a mounting sleeve of a zirconia analyzer sampling device according to the present invention; Figure 5 This is a three-dimensional cross-sectional view of the overall structure of an automatic sampling mechanism of a zirconia analyzer sampling device of the present invention; Figure 6 This is a three-dimensional exploded view of the overall structure of an automatic sampling mechanism of a zirconia analyzer sampling device of the present invention; Figure 7 This is a three-dimensional diagram of the connection structure between the sealing disk and the adjustment seat of a zirconia analyzer sampling device of the present invention; Figure 8 This is a three-dimensional exploded view of the connection structure between the sealing disk and the adjustment seat of a zirconia analyzer sampling device of the present invention; Figure 9 This is a three-dimensional diagram of the structure of an adjustment seat of a zirconia analyzer sampling device of the present invention; Figure 10 This is a three-dimensional diagram of the connection structure between the pipe connection seat and the air inlet pipe and the air outlet pipe of a zirconia analyzer sampling device of the present invention; Figure 11 This is a schematic diagram of the state of a zirconia analyzer sampling device and a flue gas pipeline in cooperation with each other according to the present invention.

[0025] Reference numerals: 10. Zirconia detector; 101. Instrument base; 102. Connecting conduit; 103. First flange; 104. Detector probe; 105. Fixing ring; 20. Mounting sleeve; 201. Protective sleeve; 202. Adjusting sleeve; 2021. First anti-slip groove; 203. Second flange; 204. Limiting ring; 205. Sealing ring; 30. Automatic sampling mechanism; 301. Sampling tube; 3011. Positioning hole; 302. Third flange; 303. Pipe connection seat; 304. Sealing plate; 305. Adjusting rod; 3051. Threaded section; 306. Adjusting seat; 3061. Slot; 3062. Through hole; 3063. Connecting screw hole; 307. Connecting block; 3071. Positioning screw hole; 308. Operating handle; 309. Inlet pipe; 3091. Inlet hole; 310. U-shaped tube; 311. Connecting screw; 312. Outlet pipe; 3121. Outlet hole; 313. Raised portion; 314. Positioning bolt; 315. Connecting ring; 3151. Second anti-slip groove; 316. Positioning rod; 317. Sealing baffle; 318. Connecting rod; 40. Connecting pipe; 401. Fourth flange. DETAILED DESCRIPTION

[0026] The following describes the embodiments of the present invention by means of specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0027] Example 1 like Figure 1-Figure 3 As shown, a zirconia analyzer sampling device includes a zirconia detector 10, a mounting sleeve 20, an automatic sampling mechanism 30, and a connecting pipe 40. The zirconia detector 10 includes an instrument base 101, a connecting conduit 102, a first flange 103, and a detector probe 104. The connecting conduit 102 is located at the bottom of the zirconia detector 10. The first flange 103 is fixedly mounted on the outer wall of the connecting conduit 102. The detector probe 104 is located at the bottom end of the connecting conduit 102 and is connected to the instrument base 101 via a cable. The mounting sleeve 20 is used to securely and protectively mount the zirconia detector 10. The automatic sampling mechanism 30 is connected to the bottom end of the mounting sleeve 20. The connecting conduit 102 is protected and mounted within the mounting sleeve 20, while the detector probe 104 extends into the interior of the automatic sampling mechanism 30. The connecting pipe 40 is fixedly connected to one side of the flue gas pipe, and one end of the connecting pipe 40 extends outward and is sealed and fixedly connected to one end of the automatic sampling mechanism 30, so that the flue gas can be automatically sampled by convection. At the same time, the flue gas can automatically detect the oxygen content through the detector probe 104 during the convection process.

[0028] The present invention can be used in the field of zirconia analyzer sampling equipment, and can also be applied to other fields of the present invention.

[0029] Example 2 This embodiment is a further improvement of the previous embodiment: Figures 1-4As shown, the mounting sleeve 20 includes a protective sleeve 201. An adjustment sleeve 202 is threadedly mounted on the outer wall of the protective sleeve 201. The top of the adjustment sleeve 202 extends upward and is fixedly mounted with a second flange 203 that cooperates with the first flange 103. When installing the zirconia detector 10, the connecting conduit 102 is first inserted downward into the protective sleeve 201, and the detector probe 104 is extended outside the bottom end of the protective sleeve 201. The adjustment sleeve 202 is then rotated to adjust the extension length on the protective sleeve 201 until the top of the second flange 203 contacts the bottom of the first flange 103. At this point, the first flange 103 and the second flange 203 are fixedly connected using bolts, completing the fixed installation of the zirconia detector 10. By adjusting the extension length of the adjustment sleeve 202, it can adapt to the installation of zirconia detectors 10 of different lengths, improving the flexibility of use. The outer wall of the adjustment sleeve 202 is provided with a first anti-slip groove 2021. The provision of the first anti-slip pattern 2021 can facilitate better rotation operation when rotating the adjusting sleeve 202, thereby achieving an anti-slip effect for the hands.

[0030] In one aspect of this embodiment, a limit ring 204 is fixedly attached to the lower interior of the protective sleeve 201. A retaining ring 105, which engages with the retaining ring 204, is fixedly mounted on the bottom outer wall of the connecting conduit 102. When the connecting conduit 102 is inserted downward into the protective sleeve 201, the contact between the retaining ring 105 and the retaining ring 204 limits the movement of the connecting conduit 102, thereby preventing the detector probe 104 from extending downward excessively or not extending properly, thereby facilitating better installation. Furthermore, the contact between the retaining ring 105 and the retaining ring 204 provides a certain sealing effect, preventing smoke from entering the protective sleeve 201 and flowing upward, potentially affecting the instrument base 101. A sealing ring 205 is fixedly mounted on the top of the retaining ring 204, with the bottom of the retaining ring 105 pressing against the sealing ring 205. The provision of the sealing ring 205 further enhances the sealing of the protective sleeve 201, thereby improving the protection of the entire zirconia detector 10.

[0031] Example 3 This embodiment is a further improvement of the previous embodiment: Figures 1-10As shown, the automatic sampling mechanism 30 includes a sampling tube 301, which is horizontally arranged and vertically fixedly connected to the bottom end of the protective sleeve 201. The detector probe 104 extends into the sampling tube 301. One end of the sampling tube 301 is fixedly sleeved with a third flange 302, and one end of the connecting pipe 40 is fixedly sleeved with a fourth flange 401 that cooperates with the third flange 302. The third flange 302 and the fourth flange 401 are fixedly connected by bolts, thereby sealing and fixing the sampling tube 301 and the connecting pipe 40. The automatic sampling mechanism 30 also includes a gas convection component, an adjustment component and a sealing component. The gas convection component is arranged between the sampling tube 301, the connecting pipe 40 and the flue gas pipe, and is used for flue gas convection between the flue gas pipe and the sampling tube 301. The adjustment component is arranged inside the sampling tube 301 and is positioned and connected to the gas convection component. It is used to adjust the extension length of the gas convection component to adapt to extended sampling in flue gas pipes with different inner diameters. The sealing component is arranged at one end of the sampling tube 301 away from the connecting pipe 40, and is used to seal one end of the sampling tube 301. The sealing component is connected to the adjustment component, and the adjustment component can be removed at the same time after the sealing component is removed.

[0032] In one aspect of this embodiment, the gas convection component includes a pipe connecting seat 303, an air inlet pipe 309 and an air outlet pipe 312. The air inlet pipe 309 and the air outlet pipe 312 are fixed symmetrically in the upper and lower directions and are arranged on one side of the pipe connecting seat 303, and the air inlet pipe 309 is located directly below the air outlet pipe 312. The adjacent ends of the air inlet pipe 309 and the air outlet pipe 312 are both sealed structures and extend outward through the connecting pipe 40. The air inlet pipe 309 is provided with an air inlet hole 3091 with an opening downward at the end close to the seal, and the air outlet pipe 312 is provided with an air outlet hole 3121 with an opening upward at the end close to the seal. The end of the air inlet pipe 309 away from the seal extends to the interior of the sampling tube 301 and is integrally formed with a U-shaped tube 310 for use with the detector probe 104. The pipe connection seat 303 is positioned and connected to the inside of the sampling tube 301 near one end of the connecting pipe 40 through the adjustment component, and then the sealed ends of the inlet pipe 309 and the outlet pipe 312 are extended through the connecting pipe 40 to the inside of the flue gas duct, and the installation position is such that the air inlet hole 3091 faces the direction of the flue gas flow, as shown in FIG. Figure 11As shown, when the flue gas flows upward, the air inlet 3091 opens downward, while the air outlet 3121 opens upward. The sampling tube 301 is sealed and fixedly connected to the connecting pipe 40 via the fourth flange 401 and the third flange 302. The zirconia detector 10 is then installed. After installation, the detector probe 104 extends into the interior of the sampling tube 301 and corresponds to the end of the U-shaped tube 310. The flue gas in the flue gas duct first enters the air inlet pipe 309 from the air inlet 3091 and then flows out from one end of the U-shaped tube 310. At this time, the flue gas passes through the detector probe 104, completing the automatic detection of the oxygen content in the flue gas. The flue gas continues to flow in the sampling tube 301 and enters the air outlet pipe 312. Finally, it flows back into the flue gas duct from the air outlet 3121, thereby achieving the effect of flue gas convection. The convection sampling method eliminates the need for instrument air. The automatic sampling mechanism 30 automatically samples as the flue gas flows through the flue, thus saving instrument air. Furthermore, after the flue gas enters the intake pipe 309, the water vapor in the flue gas condenses on the inner wall of the intake pipe 309 as the gas flows. This condensed water then flows back into the furnace, significantly reducing the amount of water vapor entering the sample gas detection chamber. This reduces damage to the zirconia cell and increases the service life of the detection equipment.

[0033] In one aspect of this embodiment, the sealing assembly includes a sealing disk 304 that seals against the end of the sampling tube 301 away from the connecting pipe 40. A connecting ring 315 is rotatably connected to the side of the sealing disk 304 proximal to the sampling tube 301, and the connecting ring 315 is threadedly connected to the outer wall of the sampling tube 301. The connecting ring 315 is threadedly connected to the outer wall of the sampling tube 301. The sealing disk 304 and the end of the sampling tube 301 seal the end of the sampling tube 301 away from the connecting pipe 40, thereby preventing smoke from leaking from the sampling tube 301 during convection. Two positioning rods 316 are symmetrically fixedly connected to one side of the sealing disk 304 and located on the inner side of the connecting ring 315. One end of each positioning rod 316 extends to the outside of the connecting ring 315. Two positioning holes 3011 are symmetrically defined at one end of the sampling tube 301, which engage with the corresponding positioning rods 316. Before connecting the connecting ring 315 to the sampling tube 301, the two positioning rods 316 can be inserted into the two positioning holes 3011. Then, when the connecting ring 315 is rotated to thread the sample tube 301, the sealing disk 304 will not be synchronously rotated. The outer surface of the connecting ring 315 is provided with a second anti-slip groove 3151. The second anti-slip groove 3151 on the outer surface of the connecting ring 315 makes it easier to rotate the connecting ring 315 and prevents hands from slipping.

[0034] In one aspect of this embodiment, the adjustment assembly includes an adjustment seat 306 that is sealingly and slidingly connected to the inner wall of the sampling tube 301, and an adjustment rod 305 is rotatably connected to one side of the sealing disk 304. One end of the adjustment rod 305 extends to the outside of the sampling tube 301 and is fixedly connected to the operating handle 308. The other end of the adjustment rod 305 extends to the inside of the sampling tube 301 and is rotatably connected to a connecting block 307. One side of the connecting block 307 is in contact with the inner wall of one side of the sampling tube 301 and is provided with a positioning screw hole 3071. The outer wall of the sampling tube 301 close to the third flange 302 is threadedly connected to a positioning bolt 314 that is threadedly connected to the positioning screw hole 3071. The outer wall of the adjustment rod 305 is provided with a threaded section 3051, and the adjustment seat 306 is threadedly sleeved on the threaded section 3051. The threaded connection between the positioning bolt 314 and the positioning screw hole 3071 secures the connection block 307 to the inner wall of the sampling tube 301 near the end of the connecting pipe 40. Simultaneously, the sealing disk 304 is fixedly attached to the end of the sampling tube 301 by the connection ring 315. The two positioning rods 316 engage and limit the sealing disk 304, preventing it from rotating. At this point, rotating the adjustment rod 305 via the operating handle 308 can drive the adjustment seat 306 to slide in a sealed manner within the sampling tube 301, thereby achieving the effect of adjusting the position of the adjustment seat 306. Furthermore, when the automatic sampling mechanism 30 needs to be disassembled for cleaning or maintenance, the positioning bolt 314 can be first rotated to release the connection block 307, and then the connection ring 315 can be rotated to disengage the threaded connection with the sampling tube 301. At this point, the movement of the sealing disk 304 can drive the adjustment rod 305 to move synchronously, thereby driving the adjustment seat 306 and the connection block 307 to move synchronously toward the outside of the sampling tube 301, thereby achieving the disassembly effect. Due to the convection of flue gas, a large amount of soot will adhere to the inner wall of the sampling tube 301 after long-term operation. During the outward movement of the adjustment seat 306, since the adjustment seat 306 and the inner wall of the sampling tube 301 are in a sealed sliding state, the adjustment seat 306 can scrape off the soot adhered to the inner wall of the sampling tube 301 and scrape the soot outward from the end of the sampling tube 301 away from the third flange 302, thereby cleaning the inner wall of the sampling tube 301 and improving the accuracy of the detection.

[0035] In one aspect of this embodiment, a card slot 3061 that is adapted to be engaged with the pipe connecting seat 303 is provided on the side of the adjustment seat 306 away from the sealing disk 304, and a through hole 3062 that is connected to the card slot 3061 is provided on the side of the adjustment seat 306 close to the sealing disk 304. A protrusion 313 that is adapted to be engaged with the through hole 3062 is integrally provided on one side of the pipe connecting seat 303, and connecting screw holes 3063 are provided at the four corners of the inner wall of the card slot 3061 close to the through hole 3062. Connecting screws 3063 are threaded through the four corners of one side of the pipe connecting seat 303, and are threadedly connected to the corresponding connecting screw holes 3063. First, install the adjustment seat 306 inside the sampling tube 301 and rotate the adjustment rod 305 to bring the adjustment seat 306 closer to the tube mouth of the sampling tube 301. Then, extend one side of the pipe connecting seat 303 into the sampling tube 301 and correspondingly abut against the clamping groove 3061, with the protrusion 313 just clamped into the through hole 3062. This positioning and clamping method can achieve a certain sealing effect. Before the pipe connecting seat 303 is clamped, the U-shaped tube 310 and the air inlet pipe 309 can smoothly pass through the through hole 3062 and extend into the interior of the sampling tube 301. After the pipe connecting seat 303 is clamped, rotate the four connecting screws 311 so that they are respectively threadedly connected to the four connecting screw holes 3063, thereby completing the fixed connection between the pipe connecting seat 303 and the adjustment seat 306. Then, according to the inner diameter of the flue gas duct, the length of the air inlet pipe 309 and the air outlet pipe 312 extending into the flue gas duct is adjusted, that is, by rotating the operating handle 308 to drive the adjustment rod 305 to rotate, and then by adjusting the position of the adjustment seat 306, the position adjustment effect of the pipe connecting seat 303 is achieved, thereby adapting to the sampling of flue gas ducts with different inner diameters.

[0036] Example 4 This embodiment is a further improvement of the previous embodiment: Figures 1-11As shown, a sealing diaphragm 317 is sealingly and slidably connected to the inner side of the sampling tube 301 near the sealing disk 304. The sealing diaphragm 317 is sealedly sleeved on the outer wall of the adjustment rod 305. The sealing diaphragm 317 and the adjustment seat 306 are fixedly connected to the same connecting rod 318 on the side adjacent to each other. The spacing between the sealing diaphragm 317 and the adjustment seat 306 is precisely adapted to the extension length of the U-shaped tube 310 and the air inlet pipe 309 into the sampling tube 301. In other words, the sealing diaphragm 317, the adjustment seat 306, and the sampling tube 301 form a sealed space for conveying flue gas. After the flue gas exits the U-shaped tube 310, it is blocked by the sealing diaphragm 317, preventing the flue gas from accumulating in large quantities on the side of the sealing disk 304 and affecting the subsequent flue gas detection effect. At the same time, the overall sealing performance of the sampling tube 301 is further improved. When the adjusting rod 305 is rotated to drive the adjusting seat 306 to move, the sealing partition 317 can be simultaneously driven to move through the connecting rod 318, so that the conveying space of the flue gas in the sampling tube 301 is always maintained between the sealing partition 317 and the adjusting seat 306, thereby ensuring effective convection flow of the flue gas.

[0037] A method for using a zirconia analyzer sampling device comprises the following steps: S1. Installation of adjustment seat 306: First, insert the adjustment seat 306 into the sampling tube 301 through the adjustment rod 305, and at the same time, position the two positioning rods 316 in the two positioning holes 3011 to determine the orientation of the adjustment rod 305, the adjustment seat 306 and the connecting block 307. Then, screw the connecting ring 315 onto the outer wall of the sampling tube 301 until the sealing disk 304 is sealed and fitted with one end of the sampling tube 301. Then, fix the connecting block 307 by rotating the positioning bolt 314. Then, rotate the adjustment rod 305 to adjust the position of the adjustment seat 306 until the adjustment seat 306 moves toward the end of the sampling tube 301 and contacts the connecting block 307. S2. Installation of pipe connection seat 303: Insert one side of the pipe connection base 303 into one end of the sampling tube 301 and position it with the slot 3061 and through hole 3062 of the adjustment base 306. Then rotate the connecting screw 311 to connect it with the connecting screw hole 3063 to complete the positioning and fixing between the pipe connection base 303 and the adjustment base 306. S3. Adjustment of the extension length of the air inlet pipe 309 and the air outlet pipe 312: After installing the pipe connecting seat 303, the sealed ends of the inlet pipe 309 and the outlet pipe 312 are extended into the flue gas duct through the connecting pipe 40. At this time, the adjusting rod 305 can be rotated to drive the adjusting seat 306 to move according to the length of the extension into the flue gas duct, thereby completing the position adjustment of the pipe connecting seat 303, thereby adjusting the extension length of the inlet pipe 309 and the outlet pipe 312 to adapt to the installation of flue gas ducts with different inner diameters. After adjustment, the third flange 302 and the fourth flange 401 are connected by bolts to complete the fixation between the sampling tube 301 and the connecting pipe 40; S4. Installation of zirconia detector 10: Finally, the connecting conduit 102 is extended downward into the protective sleeve 201. The detector probe 104 is positioned and extended into the sampling tube 301 through the interference and limitation between the fixing ring 105 and the limiting ring 204. Then, according to the overall length of the zirconia detector 10, the adjusting sleeve 202 is rotated to adjust its extension height until the second flange 203 contacts the first flange 103. Finally, it is fixed with bolts to complete the fixed and protective installation of the zirconia detector 10 on the mounting sleeve 20. S5. Automatic detection of oxygen content: After the entire device is installed, the flue gas in the flue gas duct first enters the air inlet pipe 309 from the air inlet hole 3091, and then flows out from the U-shaped tube 310. The flue gas passes through the detector probe 104 to complete the automatic detection of the oxygen content. The flue gas after detection flows in the sampling tube 301 and enters the air outlet pipe 312, and finally flows back to the flue gas duct from the air outlet hole 3121, thereby completing the automatic sampling and detection effect through the convection of the flue gas.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions, which should all be included in the scope of the claims of the present invention.

Claims

1. A zirconia analyzer sampling device, comprising a zirconia detector (10), the zirconia detector (10) comprising an instrument seat (101), a connecting conduit (102), a first flange (103) and a detector probe (104), wherein the connecting conduit (102) is arranged at the bottom of the zirconia detector (10), the first flange (103) is fixedly sleeved above the outer wall of the connecting conduit (102), the detector probe (104) is arranged at the bottom end of the connecting conduit (102) and is connected to the instrument seat (101) via a cable, characterized in that: Also includes: A mounting sleeve (20) for fixing and protecting the zirconia detector (10); An automatic sampling mechanism (30) is connected to the bottom end of the mounting sleeve (20), a connecting conduit (102) is protected and mounted in the mounting sleeve (20), and a detector probe (104) extends into the interior of the automatic sampling mechanism (30); The connecting pipe (40) is fixedly connected to one side of the flue gas pipe, and one end of the connecting pipe (40) extends outward and is sealed and fixedly connected to one end of the automatic sampling mechanism (30), so that the flue gas can be automatically sampled by convection, and the oxygen content of the flue gas can be automatically detected by the detector probe (104) during the convection process.

2. A zirconia analyzer sampling device according to claim 1, characterized in that, The mounting sleeve (20) comprises a protective sleeve (201), an outer wall of the protective sleeve (201) is threadedly sleeved with an adjusting sleeve (202), and a top end of the adjusting sleeve (202) extends upward and is fixedly sleeved with a second flange (203) used in conjunction with the first flange (103); The outer wall of the adjusting sleeve (202) is provided with a first anti-slip pattern (2021).

3. A zirconia analyzer sampling device according to claim 2, characterized in that, A limiting ring (204) is fixedly connected to the lower portion of the inner portion of the protective sleeve (201), and a fixing ring (105) is provided on the bottom of the outer wall of the connecting conduit (102) to interfere with the limiting ring (204). A sealing ring (205) is fixedly provided on the top of the limiting ring (204), and the bottom of the fixing ring (105) is pressed against the sealing ring (205).

4. A zirconia analyzer sampling device according to claim 3, characterized in that: The automatic sampling mechanism (30) includes a sampling tube (301), and the sampling tube (301) is horizontally arranged and vertically fixedly connected to the bottom end of the protective sleeve (201), the detector probe (104) extends into the sampling tube (301), one end of the sampling tube (301) is fixedly sleeved with a third flange (302), and one end of the connecting pipe (40) is fixedly sleeved with a fourth flange (401) used in conjunction with the third flange (302); The automatic sampling mechanism (30) further comprises a gas convection component, an adjustment component and a sealing component. The gas convection component is arranged between the sampling tube (301), the connecting pipe (40) and the flue gas pipe, and is used for flue gas to convect between the flue gas pipe and the sampling tube (301). The adjustment component is arranged inside the sampling tube (301), is positioned and connected to the gas convection component, and is used for adjusting the extension length of the gas convection component. The sealing component is arranged at one end of the sampling tube (301) away from the connecting pipe (40), and is used for sealing one end of the sampling tube (301). The sealing component is connected to the adjustment component.

5. A zirconia analyzer sampling device according to claim 4, characterized in that: The gas convection component includes a pipe connecting seat (303), an air inlet pipe (309) and an air outlet pipe (312), the air inlet pipe (309) and the air outlet pipe (312) are fixed and symmetrically arranged on one side of the pipe connecting seat (303), and the air inlet pipe (309) is located directly below the air outlet pipe (312). The adjacent ends of the air inlet pipe (309) and the air outlet pipe (312) are both sealed structures and extend outward through the connecting pipe (40). The air inlet pipe (309) is provided with an air inlet hole (3091) opening downward at the end close to the seal, and the air outlet pipe (312) is provided with an air outlet hole (3121) opening upward at the end close to the seal. The air inlet pipe (309) extends from the end away from the seal to the interior of the sampling tube (301) and is integrally formed with a U-shaped tube (310) for use with the detector probe (104).

6. A zirconia analyzer sampling device according to claim 5, characterized in that: The sealing assembly comprises a sealing disc (304) that is sealed against one end of the sampling tube (301) away from the connecting pipe (40); a connecting ring (315) is rotatably connected to the side of the sealing disc (304) close to the sampling tube (301), and the connecting ring (315) is threadedly connected to the outer wall of the sampling tube (301); Two positioning rods (316) located on the inner side of the connecting ring (315) are symmetrically fixedly connected to one side of the sealing disk (304), and one end of each of the two positioning rods (316) extends to the outside of the connecting ring (315). Two positioning holes (3011) for plugging and cooperating with the corresponding positioning rods (316) are symmetrically formed at one end of the sampling tube (301); The outer side surface of the connecting ring (315) is provided with a second anti-slip groove (3151).

7. A zirconia analyzer sampling device according to claim 6, characterized in that: The adjustment assembly comprises an adjustment seat (306) sealingly and slidingly connected to the inner wall of the sampling tube (301); an adjustment rod (305) is rotatably connected to one side of the sealing disk (304); one end of the adjustment rod (305) extends toward the outside of the sampling tube (301) and is fixedly connected to an operating handle (308); the other end of the adjustment rod (305) extends toward the inside of the sampling tube (301) and is rotatably connected to a connecting block (307); one side of the connecting block (307) is in contact with the inner wall of one side of the sampling tube (301) and is provided with a positioning screw hole (3071); an outer wall of the sampling tube (301) close to the third flange (302) is threadedly connected to a positioning bolt (314) threadedly connected to the positioning screw hole (3071); the outer wall of the adjustment rod (305) is provided with a threaded section (3051), and the adjustment seat (306) is threadedly sleeved on the threaded section (3051).

8. A zirconia analyzer sampling device according to claim 7, characterized in that: A slot (3061) adapted to engage with the pipe connection seat (303) is provided on a side of the adjustment seat (306) away from the sealing disc (304); a through hole (3062) communicating with the slot (3061) is provided on a side of the adjustment seat (306) close to the sealing disc (304); and a protrusion (313) adapted to engage with the through hole (3062) is integrally provided on one side of the pipe connection seat (303); Connecting screw holes (3063) are provided at the four corners of the inner wall of one side of the clamping slot (3061) close to the through hole (3062), and connecting screw rods (311) threadedly connected to the corresponding connecting screw holes (3063) are threadedly passed through the four corners of one side of the pipe connecting seat (303).

9. The zirconia analyzer sampling device according to claim 8, characterized in that: A sealing partition (317) is sealingly and slidably connected to the side of the sampling tube (301) close to the sealing disk (304), and the sealing partition (317) is sealed and sleeved on the outer wall of the adjustment rod (305). The sealing partition (317) and the adjustment seat (306) are fixedly connected to the same connecting rod (318) on the side close to each other.

10. A method for using a zirconia analyzer sampling device according to any one of claims 1 to 9, characterized in that: The steps include: S1. Installation of the adjustment seat (306): First, the adjustment seat (306) is inserted into the sampling tube (301) through the adjustment rod (305), and the two positioning rods (316) are positioned and inserted into the two positioning holes (3011) to determine the orientation of the adjustment rod (305), the adjustment seat (306) and the connecting block (307). Then, the connecting ring (315) is threadedly connected to the outer wall of the sampling tube (301) until the sealing disk (304) is sealed and fitted with one end of the sampling tube (301). Then, the connecting block (307) is fixed by rotating the positioning bolt (314). Then, the adjustment rod (305) is rotated to adjust the position of the adjustment seat (306) until the adjustment seat (306) moves toward the end of the sampling tube (301) and conflicts with the connecting block (307). S2. Installation of pipe connection seat (303): Insert one side of the pipe connection seat (303) into one end of the sampling tube (301) and position and engage with the slot (3061) and the through hole (3062) of the adjustment seat (306), then rotate the connecting screw (311) to connect with the connecting screw hole (3063), thereby completing the positioning and fixing between the pipe connection seat (303) and the adjustment seat (306); S3, extension length adjustment of the air inlet pipe (309) and the air outlet pipe (312): After the pipe connection seat (303) is installed, the sealed ends of the air inlet pipe (309) and the air outlet pipe (312) are extended into the flue gas pipe through the connecting pipe (40). At this time, the adjusting rod (305) can be rotated to drive the adjusting seat (306) to move according to the length of the extension into the flue gas pipe, thereby completing the position adjustment of the pipe connection seat (303), thereby adjusting the extension length of the air inlet pipe (309) and the air outlet pipe (312) to adapt to the installation of flue gas pipes with different inner diameters. After the adjustment is completed, the third flange (302) and the fourth flange (401) are connected by bolts to complete the fixation between the sampling tube (301) and the connecting pipe (40); S4. Installation of Zirconia Detector (10): Finally, the connecting conduit (102) is extended downward into the protective sleeve (201), and the detector probe (104) is positioned and extended into the sampling tube (301) through the interference and limitation of the fixing ring (105) and the limiting ring (204). Then, according to the overall length of the zirconia detector (10), the adjusting sleeve (202) is rotated to adjust its extension height until the second flange (203) contacts the first flange (103). Finally, the zirconia detector (10) is fixed on the mounting sleeve (20) by bolts. S5. Automatic detection of oxygen content: After the entire device is installed, the flue gas in the flue gas duct first enters the air inlet pipe (309) from the air inlet hole (3091) and then flows out from the U-shaped tube (310). The flue gas passes through the detector probe (104) to complete the automatic detection of the oxygen content. The flue gas after detection flows in the sampling tube (301) and enters the air outlet pipe (312), and finally flows back to the flue gas duct from the air outlet hole (3121). The automatic sampling and detection effect is achieved through the convection of the flue gas.

Images