Odor collection device, collection method and application in odor detection and analysis

Abstract

The present invention belongs to the technical field of odor collection, and specifically relates to an odor collection device, a collection method and an application in odor detection and analysis, comprising a collection component, wherein the outer surface of the collection component is provided with a protection component, and the output end of the protection component is provided with a cleaning component; the collection component comprises an elastic bag, and a recovery cavity is provided inside the elastic bag, an insertion tube is plugged into the top of the elastic bag, and an elastic filter plate is provided on the inner wall of the insertion tube; the protection component comprises a base, and the peripheral side surface of the base is connected with a plurality of air intake hoses, and the output end of the air intake hose is provided with a connecting block, and a vertical hole is provided inside the connecting block; the device realizes the recovery process of high-temperature odor in papermaking odor detection and analysis, and is simple to operate, stable and efficient, and has high recovery efficiency and good recovery effect for high-temperature odor, thereby ensuring the continuous stability of the high-temperature odor inside the elastic bag and avoiding the reduction of subsequent detection accuracy after the high-temperature odor inside the elastic bag is cooled.

Description

Technical Field

[0001] The present invention belongs to the technical field of odor collection, and specifically relates to an odor collection device, a collection method and an application in odor detection and analysis. Background Art

[0002] Waste paper is a recyclable resource that is used and discarded in human production and life. Its recycling and utilization is conducive to protecting forests and saving resources. The impurities carried in waste paper usually have a pungent odor. In addition, the white water in the papermaking process is highly recycled, which leads to the deterioration of the white water quality and the generation of a large amount of malodorous gases. Therefore, the high-temperature odor generated in the odorous papermaking process needs to be re-collected and tested. During the detection process, it is necessary to first collect the high-temperature odor with the help of an air bag, and then transfer the high-temperature odor and perform an olfactory detection with the help of a three-point detection method.

[0003] Chinese invention patent CN106178898B relates to a paper mill odor purification device, comprising: a tower body and pump pipes connected to the top and bottom of the tower body at both ends, an exhaust pipe is also provided on the top of the tower body, an air inlet pipe is also provided on the bottom of the tower body, an adsorption chamber is provided in a cavity in the middle of the tower body, an extrusion plate is provided in the adsorption chamber, the extrusion plate divides the adsorption chamber into two upper and lower chambers, and a number of adsorption balls are stacked in each chamber; the odor collection device has great collection difficulty and low collection efficiency.

[0004] Chinese invention patent CN116212613A discloses an odor collection and treatment device and method generated by an anaerobic system of pulping and papermaking, comprising a spray tower body, a placement box, an exhaust pipe, a first fixed plate, a feed pipe, a first linear slide rail, a first slider, a push plate, a second slider, a first T-block, a swing rod, a connecting block, a second fixed plate and a second linear slide rail, wherein a reagent collection box is arranged at the bottom end of the spray tower body; the odor collection device is difficult to operate and has low operating accuracy.

[0005] In the process of odor detection and analysis in the odor industry, air bags are often used to collect high-temperature odors emitted. Many substances in the air bags, such as volatile fatty acids, will have their odor reduced after condensation. When the odors in the air bags are then transferred to the laboratory for detection, these odors cannot be smelled. Therefore, the odor concentration measured is very low, but in fact the emitted high-temperature odor smells very strong.

[0006] At the same time, odor often contains dust impurities. If the dust impurities cannot be filtered and recovered during the odor collection process, the subsequent three-point olfactory detection of the odor will cause contamination and damage to the detection personnel, thereby reducing the detection accuracy and safety.

[0007] When high-temperature odor is collected in an air bag, the odor will flow in any direction inside the air bag, causing uneven expansion of the air bag and reducing the odor collection effect; and when high-temperature odor is collected and precipitated inside the air bag for a long time, the existing technology lacks the mixing and stirring effect of the odor in the air bag, and the components inside the odor will precipitate, thereby reducing the subsequent odor smelling accuracy.

[0008] When the odor content in the air bag is too high, the air bag will continue to expand and there is a risk of explosion, which in turn poses a threat to the personal safety of the operator. Summary of the invention

[0009] In view of the above problems, the present invention provides an odor collection device, a collection method and an application in odor detection and analysis.

[0010] To achieve the above object, the present invention provides the following technical solution: an odor collecting device, comprising a collecting component, a protective component is provided on the outer surface of the collecting component, and a cleaning component is provided at the output end of the protective component;

[0011] The collection assembly comprises an elastic bag, a recovery chamber is provided inside the elastic bag, an insertion tube is plugged into the top of the elastic bag, and an elastic filter plate is provided on the inner wall of the insertion tube;

[0012] The protection assembly comprises a base, a peripheral side surface of the base is connected with a plurality of air intake hoses, an output end of the air intake hose is provided with a connection block, a vertical hole is provided inside the connection block, an air outlet hose is provided on the top of the connection block, a side groove is provided on a side of the connection block close to the elastic bag, an expansion tube is provided on the inner wall of the side groove, a movable block is provided at the other end of the expansion tube, and a matching hole is provided inside the movable block;

[0013] The cleaning assembly comprises a top seat, a plurality of sliding holes are evenly arranged on the peripheral side surface of the top seat, and a collision block is sealed and slidably connected inside the sliding hole.

[0014] In the device, high-temperature gas flows inside the air inlet hose and the air outlet hose, thereby realizing heat compensation for the high-temperature odor inside the recovery chamber, ensuring that the detection temperature and detection effect of the high-temperature odor meet the actual requirements. At the same time, the elastic bag can be squeezed and collided during the collection process to improve the mixing effect of the high-temperature odor inside the recovery chamber and avoid precipitation that reduces the detection accuracy. At the same time, when the amount of high-temperature odor inside the recovery chamber is too large, the air outlet hose drives the collision block to move, so that the high-temperature odor inside the recovery chamber is discharged along the through hole, realizing the rapid pressure relief protection effect.

[0015] Preferably, the elastic bag is elastic, the bottom of the insertion tube passes through the elastic bag and is inserted into the recovery chamber, the top of the outer surface of the insertion tube is provided with an external thread, the outer surface of the insertion tube is threadedly connected with a threaded cover, the inner wall of the threaded cover is threadedly connected to the top of the insertion tube, the inner bottom of the threaded cover is provided with a top plug, and the top plug is sealingly and slidably connected to the top inner wall of the insertion tube.

[0016] Preferably, a sealing ring is provided at the top of the outer surface of the elastic bag, and the top of the sealing ring is fixedly connected to the bottom of the top seat, a fixing ring is provided at the bottom of the outer surface of the elastic bag, and the bottom of the fixing ring is fixedly connected to the top of the base, a plurality of filter holes are evenly provided inside the elastic filter plate, a plurality of docking holes are evenly provided on the circumferential side of the elastic filter plate, a plurality of through holes are evenly provided on the outer surface of the insertion tube, the docking holes match the through holes, and the collision blocks are sealed and slidably connected to the through holes and the docking holes.

[0017] Preferably, a heater is provided at the bottom of the base, an air suction pump is provided at the bottom input end of the heater, a transfer hole is provided inside the base, the input end of the transfer hole is connected to the output end of the heater, the output end of the transfer hole is connected to a plurality of air intake hoses, the output end of the air intake hose is connected to the bottom of the vertical hole, and the input end of the air outlet hose is connected to the top of the vertical hole.

[0018] Preferably, the air intake hose and the air outlet hose are both elastic, and elastic sheets are provided between adjacent multiple air intake hoses and air outlet hoses, and the elastic sheets are elastic. The side wall of the side groove is provided with a connecting spring, and the other end of the connecting spring is fixedly connected to the side wall of the movable block. The connecting spring is located inside the expansion tube, and a thermal expansion material is provided inside the expansion tube. The vertical hole is connected to the side groove, and the matching hole matches the vertical hole. A plurality of heat dissipation holes are symmetrically provided on one side of the movable block close to the elastic bag, and the other end of the heat dissipation hole corresponds to the expansion tube.

[0019] Preferably, a middle hole is provided at the central axis of the top seat, the inner wall of the middle hole is fixedly connected to the outer surface of the insertion tube, the outer surfaces of the plurality of air outlet hoses are provided with blocking rings, the blocking rings match the side walls of the top seat, and the diameter of the blocking rings is larger than the diameter of the sliding hole, a hook is provided on the top of the blocking ring, and a plurality of mounting rings are evenly provided on the outer surface of the top seat, and the hooks and mounting rings are clamped with each other.

[0020] Preferably, an elastic ring plug is provided on the outer surface of the output end of the air outlet hose, the output end of the air outlet hose is inserted into the sliding hole, and the elastic ring plug and the inner wall of the sliding hole are clamped with each other, and a return spring is provided on the side wall of the elastic ring plug, and the other end of the return spring is fixedly connected to the side wall of the collision block, and the return spring is located on the outer surface of the air outlet hose, and a plurality of air outlet holes are evenly opened on the outer surface of the top seat, and the tops of the air outlet holes are all connected to the sliding hole.

[0021] The odor collection method of the odor collection device comprises the following steps:

[0022] S1, the high-temperature gas inside the air inlet hose enters the air outlet hose along the matching hole and the vertical hole, the air inlet hose and the air outlet hose preheat the elastic bag, and the high-temperature odor enters the recovery chamber inside the elastic bag along the insertion tube for storage;

[0023] S2. When the high-temperature odor inside the recovery chamber accumulates to one side, the expansion tube at the corresponding position expands and drives the movable block to move closer to the elastic bag end, the movable block squeezes the elastic bag, and the movable block drives the matching hole to move, the overlapping area of ​​the matching hole and the vertical hole is reduced, the amount of gas from the air inlet hose entering the air outlet hose along the matching hole and the vertical hole is reduced, the amount of high-temperature gas discharged from the air outlet hose to the sliding hole is reduced, the thrust exerted by the high-temperature gas on the side wall of the collision block is reduced, the extrusion force exerted by the collision block on the side wall of the elastic filter plate through the docking hole and the through hole is reduced, and the elastic filter plate is elastically deformed;

[0024] S3. When the temperature of the high-temperature odor inside the recovery chamber decreases, the expansion tube contracts and drives the movable block to move away from the elastic bag end, the overlapping area of ​​the matching hole and the vertical hole increases, the amount of gas from the air inlet hose along the matching hole and the vertical hole into the air outlet hose increases, and the heating rate of the air inlet hose and the air outlet hose to the high-temperature odor inside the recovery chamber increases;

[0025] S4. When the amount of high-temperature odor inside the recovery chamber continues to increase and drives the elastic bag to expand continuously, the air outlet hose drives the collision block to separate along the docking hole and the through hole, and the high-temperature odor inside the recovery chamber is discharged along the insertion tube and the through hole to the inside of the sliding hole and discharged.

[0026] The application of the odor collection device as described in odor detection and analysis.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. This application realizes the recovery process of high-temperature odor in papermaking odor detection and analysis through the mutual cooperation of mobile phone components, protection components and cleaning components. The device is simple to operate, stable and efficient, and has high recovery efficiency and good recovery effect for high-temperature odor, ensuring the continuous stability of high-temperature odor inside the elastic bag and avoiding the reduction of subsequent detection accuracy after the high-temperature odor inside the elastic bag is cooled.

[0029] 2. The present application sets up a recovery chamber and an elastic filter plate and other components to cooperate with each other. The high-temperature odor can also preheat the elastic bag before entering the recovery chamber, and use the elastic filter plate to filter and recover dust and impurities in the high-temperature odor, thereby improving the recovery accuracy and recovery effect of the high-temperature odor and ensuring that the high-temperature odor is always in the best detection state.

[0030] 3. The present application sets up the mutual cooperation of the movable block and the elastic bag and other components. When the amount of high-temperature odor in the recovery chamber continues to increase, the movable block continuously moves in the side groove to achieve the extrusion and collision of the side wall of the elastic bag, thereby improving the mixing effect of the high-temperature odor in the elastic bag, avoiding the high-temperature odor from being collected for a long time and tilting to one side, thereby improving the uniformity and stability of the high-temperature odor in the recovery chamber.

[0031] 4. The present application sets up the mutual cooperation of components such as the air inlet hose and the air outlet hose. During the process of transporting the high-temperature odor inside the recovery chamber, the high-temperature odor inside the recovery chamber is continuously kept warm by the circulation of the high-temperature gas inside the air inlet hose and the air outlet hose. The squeezing and collision of the movable block on the side surface of the elastic bag further improves the heat preservation of the high-temperature odor inside the recovery chamber, thereby ensuring the accuracy of subsequent detection.

[0032] 5. The present application sets up the mutual cooperation of components such as through holes and collision blocks. When the amount of high-temperature odor inside the recovery chamber continues to increase, the device drives the air outlet hose to separate from the sliding hole, and the high-temperature odor inside the recovery chamber is discharged along the multiple through holes on the side surfaces of the insertion tube, thereby achieving rapid pressure relief of the high-temperature odor inside the recovery chamber, avoiding the explosion of the elastic bag and posing a threat to the personal safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0034] Figure 2 It is a schematic diagram of the three-dimensional structure from another viewing angle of the present invention;

[0035] Figure 3 It is a schematic diagram of the internal three-dimensional structure of the present invention;

[0036] Figure 4 for Figure 3 The enlarged schematic diagram at A in the middle;

[0037] Figure 5 for Figure 3 The enlarged schematic diagram of point B in the middle;

[0038] Figure 6 for Figure 3 The enlarged schematic diagram at C in the middle;

[0039] Figure 7 for Figure 3 The enlarged schematic diagram at D in the middle;

[0040] Figure 8 It is a schematic diagram of the explosion three-dimensional structure of the present invention;

[0041] Fig. 9 It is a schematic diagram of a three-dimensional structure of a protection component of the present invention;

[0042] Fig.10 It is a schematic diagram of a partial three-dimensional structure of the cleaning component of the present invention.

[0043] In the figure: 1. Collection component; 101. Elastic bag; 102. Insertion tube; 103. Threaded cap; 104. Top plug; 105. Sealing ring; 106. Elastic filter plate; 107. Filter hole; 108. Docking hole; 109. Fixing ring; 110. Recovery chamber; 111. Through hole; 2. Protection component; 201. Base; 202. Heater; 203. Air pump; 204. Transfer hole; 205. Air intake hose; 206. Connecting block; 207 , air outlet hose; 208, side groove; 209, expansion tube; 210, connecting spring; 211, movable block; 212, matching hole; 213, vertical hole; 214, elastic sheet; 215, heat dissipation hole; 3, cleaning component; 301, top seat; 302, middle hole; 303, blocking ring; 304, hook; 305, mounting ring; 306, sliding hole; 307, elastic ring plug; 308, reset spring; 309, collision block; 310, air outlet. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0045] like Figure 1-10As shown, the odor collection device includes a collection component 1, the outer surface of the collection component 1 is provided with a protection component 2, the protection component 2 wraps and protects the collection component 1, the output end of the protection component 2 is provided with a cleaning component 3, and the cleaning component 3 cooperates with the protection component 2 to adjust and clean the collection component 1. The device is often used in papermaking odor detection and analysis, because high-temperature odor is generated in the papermaking process.

[0046] The collection component 1 includes an elastic bag 101, which is elastic. A recovery chamber 110 is provided inside the elastic bag 101. The recovery chamber 110 is used to store high-temperature odor. As the amount of high-temperature odor in the recovery chamber 110 increases, the volume of the elastic bag 101 increases. An insertion tube 102 is inserted at the top of the elastic bag 101. The bottom of the insertion tube 102 passes through the elastic bag 101 and is inserted into the recovery chamber 110. The other end of the insertion tube 102 is located outside the recovery chamber 110. The high-temperature odor is introduced and discharged with the help of the insertion tube 102.

[0047] An external thread is provided at the top of the outer surface of the insertion tube 102, and a threaded cover 103 is threadedly connected to the outer surface of the insertion tube 102. The inner wall of the threaded cover 103 is threadedly connected to the top of the insertion tube 102. The threaded cover 103 can be detached from the top of the insertion tube 102 by rotating it forward through the threaded connection. Similarly, the threaded cover 103 can be threadedly clamped and fixed to the top of the insertion tube 102 by rotating it backward. A top plug 104 is provided at the inner bottom of the threaded cover 103. The top plug 104 is sealingly and slidably connected to the inner wall of the top of the insertion tube 102. When the threaded cover 103 moves, the top plug 104 is simultaneously driven to move. When the threaded cover 103 rotates in the opposite direction and is threadedly connected to the top of the insertion tube 102, the top plug 104 is clamped with the inner wall of the insertion tube 102 to prevent the high-temperature odor inside the recovery chamber 110 from being discharged along the insertion tube 102.

[0048] A sealing ring 105 is provided on the top of the outer surface of the elastic bag 101, and the elastic bag 101 and the insertion tube 102 are sealed and fixed to each other with the help of the sealing ring 105. A fixing ring 109 is provided on the bottom of the outer surface of the elastic bag 101, and the bottom of the elastic bag 101 is fixed with the help of the fixing ring 109. An elastic filter plate 106 is provided on the inner wall of the insertion tube 102. The elastic filter plate 106 is elastic and can vibrate elastically. A plurality of filter holes 107 are evenly arranged inside the elastic filter plate 106. The filter holes 107 are used to filter odor to prevent larger impurities from entering the recovery chamber 110 and affecting subsequent detection.

[0049] The protection component 2 includes a base 201, the bottom of the fixing ring 109 is fixedly connected to the top of the base 201, and the base 201 is located below the elastic bag 101, so the base 201 is located at the bottom of the fixing ring 109 and cooperates with the fixing ring 109 to fix the bottom of the elastic bag 101. A heater 202 is provided at the bottom of the base 201, and an air pump 203 is provided at the bottom input end of the heater 202. The air pump 203 is started and external gas is passed into the heater 202. The heater 202 works and heats the gas to a suitable temperature, thereby achieving the insulation effect of the odor inside the recovery chamber 110, avoiding the odor from being unable to be accurately detected due to the temperature drop during the transfer process. A transfer hole 204 is provided inside the base 201, and the input end of the transfer hole 204 is connected to the heater 202. The output end of the heater 202 is connected, and the high-temperature gas heated by the heater 202 circulates along the transfer hole 204. The peripheral side of the base 201 is connected with multiple air intake hoses 205. The output end of the transfer hole 204 is connected with multiple air intake hoses 205, so that the high-temperature gas inside the air intake hose 205 enters the air intake hose 205. The output end of the air intake hose 205 is provided with a connecting block 206, and the interior of the connecting block 206 is provided with a vertical hole 213. The top of the connecting block 206 is provided with an air outlet hose 207. The output end of the air intake hose 205 is connected to the bottom of the vertical hole 213, and the input end of the air outlet hose 207 is connected to the top of the vertical hole 213. The high-temperature gas inside the air intake hose 205 enters the interior of the air outlet hose 207 through the vertical hole 213 for subsequent circulation.

[0050] The air inlet hose 205 and the air outlet hose 207 are both elastic, so the air inlet hose 205 and the air outlet hose 207 can change accordingly with the change of the volume of the elastic bag 101, avoiding reducing the ventilation effect of the air inlet hose 205 and the air outlet hose 207 themselves. Elastic sheets 214 are provided between adjacent multiple air inlet hoses 205 and air outlet hoses 207. The elastic sheets 214 are elastic. The elastic sheets 214 cooperate with the air inlet hose 205 and the air outlet hose 207 to achieve a wrapping and protective effect on the outer surface of the elastic bag 101, avoiding scratches and other damages to the elastic bag 101 during the transfer process and causing odor loss. At the same time, the side walls of the adjacent multiple elastic sheets 214 are fixedly connected to the side walls of the connecting block 206, the base 201 and the top seat 301, and the outer surface of the elastic bag 101 is wrapped and protected as a whole.

[0051] A side groove 208 is provided on the side of the connecting block 206 close to the elastic bag 101. The side groove 208 is located on the side close to the elastic bag 101. An expansion tube 209 is provided on the inner wall of the side groove 208. A heat expansion material is provided inside the expansion tube 209. Therefore, when the temperature inside the elastic bag 101 increases, the volume of the expansion tube 209 increases. A movable block 211 is provided at the other end of the expansion tube 209. The expansion tube 209 drives the movable block 211 to move toward the end close to the elastic bag 101. A connecting spring 210 is provided on the side wall of the side groove 208. The other end of the connecting spring 210 is fixedly connected to the side wall of the movable block 211. The connecting spring 210 is located inside the expansion tube 209. The setting of the connecting spring 210 realizes the elasticity of the movable block 211. Reset performance, a matching hole 212 is provided inside the movable block 211, and the vertical hole 213 is connected to the side groove 208. The matching hole 212 and the vertical hole 213 match each other. When the thermal expansion material inside the expansion tube 209 expands due to heat, the expansion tube 209 drives the movable block 211 to move toward the end of the elastic bag 101, and the movable block 211 drives the matching hole 212 to move. The overlapping area between the matching hole 212 and the vertical hole 213 is reduced, and the amount of high-temperature gas passing through the vertical hole 213 is reduced, thereby ensuring that the amount of high-temperature gas introduced into the air inlet hose 205 and the air outlet hose 207 has a stable heating effect on the odor inside the elastic bag 101, thereby improving the accuracy of odor transport inside the elastic bag 101 and subsequent detection.

[0052] A plurality of heat dissipation holes 215 are symmetrically provided on one side of the movable block 211 close to the elastic bag 101, and the other end of the heat dissipation hole 215 corresponds to the expansion tube 209. Therefore, the expansion tube 209 can monitor the temperature of the high-temperature odor inside the elastic bag 101 in real time with the help of the heat dissipation hole 215. At the same time, the connecting block 206 itself and the movable block 211 inside do not have a temperature transfer effect. Therefore, the thermal expansion and contraction of the thermal expansion material inside the expansion tube 209 is only related to the temperature value of the high-temperature odor inside the elastic bag 101.

[0053] The cleaning component 3 includes a top seat 301, the top of the sealing ring 105 is fixedly connected to the bottom of the top seat 301, a middle hole 302 is provided at the central axis of the top seat 301, and the inner wall of the middle hole 302 is fixedly connected to the outer surface of the insertion tube 102, so the top seat 301 is located at the top of the sealing ring 105 and cooperates with the sealing ring 105 to fix the elastic bag 101 and the insertion tube 102, and the circumferential side surface of the top seat 301 is evenly provided with a plurality of sliding holes 306, and the position of the sliding holes 306 matches the position of the air outlet hose 207, and the outer surfaces of the plurality of air outlet hoses 207 are provided with blocking rings 303, and the blocking rings 303 match the side walls of the top seat 301, and the blocking rings 303 are provided on the outer surfaces of the plurality of air outlet hoses 207. The diameter of the retaining ring 303 is larger than the diameter of the sliding hole 306. The retaining ring 303 clamps and fixes the air outlet hose 207 to prevent the air outlet hose 207 from being inserted too much into the sliding hole 306 and affecting the normal air outlet process of the air outlet hose 207. A hook 304 is provided on the top of the retaining ring 303, and a plurality of mounting rings 305 are evenly provided on the outer surface of the top seat 301. The hook 304 and the mounting ring 305 are clamped together. By means of the mutual clamping and fixing of the hook 304 and the mounting ring 305, the stability of the position of the air outlet hose 207 is further improved, and the air outlet hose 207 is prevented from being detached when the odor inside the elastic bag 101 is transferred and affecting the subsequent detection accuracy.

[0054] The outer surface of the output end of the air outlet hose 207 is provided with an elastic ring plug 307, the output end of the air outlet hose 207 is inserted into the inside of the slide hole 306, and the elastic ring plug 307 and the inner wall of the slide hole 306 are mutually engaged. When assembling, the elastic ring plug 307 is directly inserted into the inside of the slide hole 306, and the elastic ring plug 307 drives the air outlet hose 207 to enter the inside of the slide hole 306 to wait for subsequent processes. The inside of the slide hole 306 is sealed and slidably connected with a collision block 309, and the collision block 309 can be adjusted with the amount of high-temperature gas introduced into the slide hole 306. Corresponding to the movement, a return spring 308 is provided on the side wall of the elastic ring plug 307, and the other end of the return spring 308 is fixedly connected to the side wall of the collision block 309. The return spring 308 is located on the outer surface of the air outlet hose 207. The setting of the return spring 308 further improves the elastic return performance of the collision block 309. A plurality of air outlet holes 310 are evenly arranged on the outer surface of the top seat 301. The tops of the air outlet holes 310 are all connected to the sliding hole 306. The high-temperature gas discharged from the air outlet hose 207 to the inside of the sliding hole 306 is discharged along the air outlet holes 310.

[0055] The circumferential side of the elastic filter plate 106 is evenly provided with a plurality of docking holes 108, and the outer surface of the insertion tube 102 is evenly provided with a plurality of through holes 111, and the docking holes 108 match the through holes 111, that is, the docking holes 108 and the through holes 111 are connected, and the collision block 309 is sealed and slidably connected with the through holes 111 and the docking hole 108. When the collision block 309 moves synchronously with the amount of high-temperature gas in the sliding hole 306, the extrusion force of the collision block 309 on the side wall of the elastic filter plate 106 changes synchronously, thereby causing the elastic filter plate 106 to elastically move. Deformation further improves the vibration cleaning effect of the filter hole 107 inside the elastic filter plate 106. At the same time, when the air outlet hose 207 drives the collision block 309 to separate from the docking hole 108 and the through hole 111 through the reset spring 308, the odor inside the recovery chamber 110 can directly enter the sliding hole 306 along the docking hole 108 and the through hole 111, and finally be discharged along the air outlet 310 at the top of the sliding hole 306, thereby protecting the odor inside the recovery chamber 110 from leakage, avoiding excessive high-temperature odor inside the recovery chamber 110 and explosion.

[0056] In the detection and analysis of the papermaking industry, the high-temperature odor emitted is collected with air bags. Many volatile fatty acids in the air bags will condense and the smell will be reduced. When the odor in the air bags is transferred to the laboratory for detection, these odors cannot be smelled, so the odor concentration is very low when measured, but the odor actually smells very strong. At the same time, the odor often contains dust and impurities. If the dust and impurities cannot be filtered and recovered during the odor collection process, it will cause pollution to the testers during the subsequent three-point sniffing test of the odor. damage, thereby reducing the detection accuracy; when high-temperature odor is collected in the air bag, the odor will flow in any direction inside the air bag, causing uneven expansion of the air bag and reducing the odor collection effect; when high-temperature odor is collected and precipitated inside the air bag for a long time, the existing technology lacks the mixing and stirring effect of the odor in the air bag, and the components inside the odor will precipitate, thereby reducing the subsequent odor sniffing accuracy; when the odor content in the air bag is too large, the air bag will continue to expand and there is a risk of explosion, which will threaten the personal safety of the operator.

[0057] In order to solve the above problems, when collecting odor, the odor collection device is first carried to the collection and detection position of papermaking odor, the elastic sheet 214 is wrapped on the outer surface of the elastic bag 101, and multiple air inlet hoses 205 and air outlet hoses 207 are wrapped with the outer surface of the elastic bag 101. At the same time, the elastic ring plug 307 is directly inserted into the sliding hole 306, and the hook 304 and the mounting ring 305 are correspondingly hung to ensure the subsequent air inlet hose 205 and the air outlet hose 207. The insulation and regulation effect of the odor inside the recovery chamber 110.

[0058] At the same time, the air pump 203 is started and draws external air and discharges it into the heater 202. The heater 202 heats the air and forms high-temperature air. Then, the heater 202 discharges the high-temperature air into the air inlet hose 205. The high-temperature air in the air inlet hose 205 continues to reach the vertical hole 213 upward. Initially, the vertical hole 213 and the matching hole 212 coincide with each other. Then, the high-temperature air in the vertical hole 213 enters the air outlet hose 207 along the matching hole 212, and enters the sliding hole 306 along the air outlet hose 207. The high-temperature air in the sliding hole 306 applies thrust to the collision block 309 and The collision block 309 stretches the reset spring 308 to move toward the end of the elastic filter plate 106 and insert into the docking hole 108 and the through hole 111. The collision block 309 blocks the through hole 111, and the high-temperature gas in the subsequent sliding hole 306 is discharged along the air outlet 310, thereby heating the elastic bag 101 and the insertion tube 102, further improving the subsequent recovery effect of the high-temperature gas entering the recovery chamber 110, and preventing the high-temperature odor from directly entering the through hole 111 inside the elastic bag 101 along the insertion tube 102, and then rapidly cooling down and causing the odor structure to change, ultimately making it impossible to accurately detect the odor.

[0059] Then, the threaded cover 103 is rotated forward to disengage the threaded cover 103 from the external thread on the top of the insertion tube 102, and the top plug 104 is pulled out along the insertion tube 102, so that the end of the insertion tube 102 is connected to the papermaking odor exhaust port, and the high-temperature odor generated in the papermaking process is continuously discharged along the insertion tube 102 to the inside of the recovery chamber 110 for storage, and the amount of high-temperature odor in the recovery chamber 110 is continuously increased, and the temperature inside the recovery chamber 110 is continuously increased. The temperature of the elastic bag 101 is continuously increased, and the heat conduction effect of the heat dissipation holes 215 on the temperature of the elastic bag 101 causes the internal temperatures of the corresponding multiple side grooves 208 to continuously increase, and the hot expansion gas in the expansion tube 209 is heated When expansion occurs, the volume of the expansion tube 209 increases and drives the movable block 211 to move along the side groove 208 toward the end close to the elastic bag 101. The movable block 211 applies an extrusion force to the outer surface of the elastic bag 101, and the movable block 211 drives the matching hole 212 to move. The overlapping area of ​​the matching hole 212 and the vertical hole 213 decreases, and the amount of high-temperature gas entering the air outlet hose 207 through the vertical hole 213 and the matching hole 212 from the air inlet hose 205 is continuously reduced. The heat applied by the air inlet hose 205 and the air outlet hose 207 to the high-temperature odor inside the recovery chamber 110 is continuously reduced, thereby ensuring the stability of the high-temperature odor in the recovery chamber 110 and improving the insulation effect of the high-temperature odor.

[0060] At the same time, since the high-temperature odor entering the recovery chamber 110 along the insertion tube 102 is constantly circulating, the temperature values ​​at various positions inside the recovery chamber 110 are different, and the thermal expansion amount of the thermal expansion material inside the expansion tube 209 is constantly changing. That is, when the amount of high-temperature odor at the end of the side groove 208 increases, the expansion tube 209 expands and drives the movable block 211 to continuously move inside the side groove 208 toward the end of the elastic bag 101, and the extrusion force exerted by the other end of the movable block 211 on the elastic bag 101 is continuously increasing. Correspondingly, when the amount of high-temperature odor at the end of the side groove 208 decreases, The expansion tube 209 contracts and drives the movable block 211 to continuously move in the side groove 208 away from the end of the elastic bag 101 under the elastic force of the connecting spring 210. The extrusion force exerted by the other end of the movable block 211 on the elastic bag 101 is continuously reduced. Therefore, the elastic bag 101 is continuously squeezed under the squeezing action of multiple movable blocks 211 on the surrounding side surfaces and the internal high-temperature odor is pushed and mixed, which can better ensure the active mixing effect of the high-temperature odor in the recovery chamber 110, avoid the continuous precipitation of the high-temperature odor in the recovery chamber 110 and reduce the subsequent detection accuracy.

[0061] When the amount of high-temperature gas discharged from the air outlet hose 207 increases, the amount of high-temperature gas discharged from the air outlet hose 207 to the slide hole 306 increases, and the thrust applied by the high-temperature gas to the collision block 309 increases. The other end of the collision block 309 moves inside the through hole 111 and the docking hole 108 toward the end of the elastic filter plate 106, and the extrusion pressure applied by the collision block 309 to the side wall of the elastic filter plate 106 increases. The elastic filter plate 106 undergoes elastic vibration deformation under the action of the extrusion pressure.

[0062] At the same time, when the amount of high-temperature gas discharged from the outlet hose 207 decreases, the amount of high-temperature gas discharged from the outlet hose 207 to the inside of the slide hole 306 decreases, and the thrust exerted by the high-temperature gas on the collision block 309 decreases. Under the elastic force of the return spring 308, the other end of the collision block 309 is driven to move away from the elastic filter plate 106 end inside the through hole 111 and the docking hole 108, but the collision block 309 has not yet separated from the through hole 111, that is, the collision block 309 still blocks the through hole 111, preventing the high-temperature odor inside the insertion tube 102 from being discharged along the through hole 111 1 is discharged and causes waste. Correspondingly, the extrusion force exerted by the collision block 309 on the side wall of the elastic filter plate 106 is reduced. When the extrusion force exerted by the collision block 309 on the side wall of the elastic filter plate 106 is constantly changing, the elastic filter plate 106 is elastically deformed inside the insertion tube 102, further improving the elastic clearing and blocking of the filter holes 107 inside the elastic filter plate 106, improving the filtering and recovery effect of the filter holes 107 on dust and impurities in the high-temperature odor, and avoiding the filter holes 107 from working for a long time and being blocked, thereby reducing the subsequent filtering and recovery effect of the high-temperature odor.

[0063] Afterwards, as the amount of high-temperature odor inside the recovery chamber 110 continues to increase, the temperature inside the recovery chamber 110 continues to rise. Through the heat conduction effect of the heat dissipation hole 215, the volume of the thermal expansion material of the expansion tube 209 continues to increase, and the expansion tube 209 drives the movable block 211 to move closer to the end of the elastic bag 101. The overlapping area of ​​the matching hole 212 and the vertical hole 213 continues to decrease, and the amount of high-temperature gas circulating inside the air inlet hose 205 and the air outlet hose 207 continues to decrease. The high-temperature odor inside the recovery chamber 110 always maintains the optimal detection temperature. When the recovery is completed, the top plug 104 is aligned with the top of the insertion tube 102, and the threaded cover 103 is rotated in the opposite direction. The threaded cover 103 is fixedly connected to the insertion tube 102 with threads, and the top of the insertion tube 102 is blocked with the help of the top plug 104 to avoid the discharge of high-temperature odor inside the recovery chamber 110 and cause waste and pollution.

[0064] At the same time, as the elastic bag 101 is transported, the elastic bag 101 will shake inside the elastic sheet 214. The elastic bag 101 uses its own elastic structure and the extrusion and collision with the movable block 211 to shake the high-temperature odor inside the recovery chamber 110, so as to prevent the high-temperature gas from standing for a long time and precipitating, thereby affecting the subsequent detection accuracy. When the temperature of the high-temperature odor inside the recovery chamber 110 decreases, the expansion material inside the expansion tube 209 decreases in volume under the principle of thermal expansion and contraction through the heat conduction effect of the heat dissipation hole 215. The volume of the expansion tube 209 decreases, and the extrusion force exerted by the expansion tube 209 on the side wall of the movable block 211 decreases, and the elastic force of the connecting spring 210 drives The movable block 211 moves away from the end of the elastic bag 101, and the extrusion force applied by the movable block 211 to the side wall of the elastic bag 101 is reduced. The movable block 211 drives the matching hole 212 to move, and the overlapping area of ​​the matching hole 212 and the vertical hole 213 increases. The amount of high-temperature gas from the air intake hose 205 entering the air outlet hose 207 along the matching hole 212 and the vertical hole 213 increases, and the amount of high-temperature gas flowing inside the air intake hose 205 and the air outlet hose 207 increases. The heating efficiency of the air intake hose 205 and the air outlet hose 207 for the high-temperature odor inside the recovery chamber 110 is improved, thereby ensuring that the high-temperature odor inside the recovery chamber 110 is always at a stable temperature value, thereby improving the subsequent high-temperature odor detection accuracy and detection effect.

[0065] However, when the high-temperature odor enters the recovery chamber 110 along the insertion tube 102 for storage, if the amount of high-temperature odor in the recovery chamber 110 continues to increase, the elastic bag 101 continues to expand, and the thrust exerted by the elastic bag 101 on the surrounding air inlet hose 205 and the air outlet hose 207 side walls continues to increase, and the air inlet hose 205 and the air outlet hose 207 are continuously stretched and deformed. When the deformation of the air outlet hose 207 reaches the maximum value, the air outlet hose 207 drives the blocking ring 303 to move away from the top seat 301, and the blocking ring 303 drives the hook 304 to disengage from the mounting ring 305, and at the same time, the air outlet hose 207 drives the elastic ring plug 303 to move away from the top seat 301. 07 moves along the slide hole 306 away from the end of the insertion tube 102 and detaches from the slide hole 306, the elastic ring plug 307 drives the collision block 309 to move away from the end of the insertion tube 102 through the return spring 308, the collision block 309 enters the interior of the slide hole 306 along the docking hole 108 and the through hole 111, and is finally discharged along the slide hole 306, then the high-temperature odor inside the recovery chamber 110 simultaneously enters the interior of the slide hole 306 along the multiple through holes 111 inside the insertion tube 102, and is finally discharged along the end of the slide hole 306 and the air outlet 310, so as to avoid excessive high-temperature gas inside the recovery chamber 110 and explosion, thereby protecting the personal safety of the operator.

[0066] After the high-temperature odor inside the recovery chamber 110 is discharged, the threaded cover 103 is rotated forward and detached from the insertion tube 102, and the top plug 104 is simultaneously detached from the insertion tube 102, and the collision block 309 is inserted into the sliding hole 306 in the reverse direction, and the air outlet hose 207 is inserted into the sliding hole 306 through the elastic ring plug 307, and the hook 304 is hung with the mounting ring 305, and the above process is repeated to recover the high-temperature odor.

[0067] The device realizes the recovery process of high-temperature odor in odor detection and analysis, is simple to operate, stable and efficient, and has high recovery efficiency and good recovery effect for high-temperature odor, ensuring the continuous stability of the high-temperature odor inside the elastic bag 101, and avoiding the high-temperature odor inside the elastic bag 101 to reduce the subsequent detection accuracy after cooling; at the same time, the high-temperature odor can also preheat the elastic bag 101 before entering the recovery chamber 110, and filter and recover dust and impurities in the high-temperature odor with the help of the elastic filter plate 106, thereby improving the recovery accuracy and recovery effect of the high-temperature odor, and ensuring that the high-temperature odor is always in the best detection state; at the same time, when the amount of high-temperature odor inside the recovery chamber 110 continues to increase, the movable block 211 is continuously moved in the side groove 208 to achieve the extrusion and collision of the side walls of the elastic bag 101, thereby improving the mixing effect of the high-temperature odor inside the elastic bag 101, and avoiding high temperature The odor is collected for a long time and tilted to one side, thereby improving the uniformity and stability of the high-temperature odor inside the recovery chamber 110; at the same time, in the process of transporting the high-temperature odor inside the recovery chamber 110, the high-temperature gas inside the air inlet hose 205 and the air outlet hose 207 circulates, so as to realize continuous insulation of the high-temperature odor inside the recovery chamber 110, and the extrusion and collision of the movable block 211 on the side surface of the elastic bag 101 further improve the insulation of the high-temperature odor inside the recovery chamber 110, and ensure the subsequent detection accuracy; and when the amount of high-temperature odor inside the recovery chamber 110 continues to increase, the air outlet hose 207 is driven to separate from the sliding hole 306, and the high-temperature odor inside the recovery chamber 110 is discharged along the multiple through holes 111 on the side surface of the insertion tube 102, thereby realizing the rapid pressure relief of the high-temperature odor inside the recovery chamber 110, avoiding the explosion of the elastic bag 101 and posing a threat to the personal safety of the operator.

[0068] The collection method of the odor collection device as described above comprises the following steps:

[0069] S1. The high-temperature gas inside the air intake hose 205 enters the air outlet hose 207 along the matching hole 212 and the vertical hole 213. The air intake hose 205 and the air outlet hose 207 preheat the elastic bag 101. The high-temperature odor enters the recovery chamber 110 inside the elastic bag 101 along the insertion tube 102 for storage.

[0070] S2. When the high-temperature odor inside the recovery chamber 110 accumulates to one side, the expansion tube 209 at the corresponding position expands and drives the movable block 211 to move toward the end close to the elastic bag 101. The movable block 211 squeezes the elastic bag 101, and the movable block 211 drives the matching hole 212 to move. The overlapping area of ​​the matching hole 212 and the vertical hole 213 is reduced, and the amount of gas from the air inlet hose 205 entering the air outlet hose 207 along the matching hole 212 and the vertical hole 213 is reduced. The amount of high-temperature gas discharged from the air outlet hose 207 to the sliding hole 306 is reduced, and the thrust exerted by the high-temperature gas on the side wall of the collision block 309 is reduced. The extrusion force exerted by the collision block 309 on the side wall of the elastic filter plate 106 through the docking hole 108 and the through hole 111 is reduced, and the elastic filter plate 106 undergoes elastic deformation.

[0071] S3. When the temperature of the high-temperature odor inside the recovery chamber 110 decreases, the expansion tube 209 contracts and drives the movable block 211 to move away from the end of the elastic bag 101, the overlapping area of ​​the matching hole 212 and the vertical hole 213 increases, and the amount of gas from the air inlet hose 205 entering the air outlet hose 207 along the matching hole 212 and the vertical hole 213 increases, and the heating rate of the air inlet hose 205 and the air outlet hose 207 to the high-temperature odor inside the recovery chamber 110 increases.

[0072] S4. When the amount of high-temperature odor inside the recovery chamber 110 continues to increase and drives the elastic bag 101 to expand continuously, the air outlet hose 207 drives the collision block 309 to separate along the docking hole 108 and the through hole 111, and the high-temperature odor inside the recovery chamber 110 is discharged along the insertion tube 102 and the through hole 111 to the inside of the sliding hole 306 and discharged.

[0073] By further limiting the collection method, the collection efficiency can be improved and the collection effect can be guaranteed.

[0074] Such as the application of the odor collection device mentioned above in odor detection and analysis.

[0075] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0076] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An odor collecting device, comprising a collecting component (1), characterized in that: A protection component (2) is provided on the outer surface of the collection component (1), and a cleaning component (3) is provided at the output end of the protection component (2); The collection component (1) comprises an elastic bag (101), a recovery chamber (110) is provided inside the elastic bag (101), an insertion tube (102) is plugged into the top of the elastic bag (101), and an elastic filter plate (106) is provided on the inner wall of the insertion tube (102); The protection assembly (2) comprises a base (201), the peripheral side surface of the base (201) is connected to a plurality of air intake hoses (205), the output end of the air intake hose (205) is provided with a connection block (206), the interior of the connection block (206) is provided with a vertical hole (213), the top of the connection block (206) is provided with an air outlet hose (207), a side groove (208) is provided on a side of the connection block (206) close to the elastic bag (101), an expansion tube (209) is provided on the inner wall of the side groove (208), a movable block (211) is provided at the other end of the expansion tube (209), and a matching hole (212) is provided inside the movable block (211); The cleaning assembly (3) comprises a top seat (301), a plurality of sliding holes (306) are evenly arranged on the peripheral side surface of the top seat (301), and a collision block (309) is sealed and slidably connected inside the sliding hole (306); A heater (202) is provided at the bottom of the base (201); an air pump (203) is provided at the bottom input end of the heater (202); a transfer hole (204) is provided inside the base (201); the input end of the transfer hole (204) is connected to the output end of the heater (202); the output end of the transfer hole (204) is connected to a plurality of air inlet hoses (205); the output end of the air inlet hose (205) is connected to the bottom of the vertical hole (213); and the input end of the air outlet hose (207) is connected to the top of the vertical hole (213); The air inlet hose (205) and the air outlet hose (207) are both elastic, and elastic sheets (214) are provided between adjacent multiple air inlet hoses (205) and air outlet hoses (207). The elastic sheets (214) are elastic, and a connecting spring (210) is provided on the side wall of the side groove (208). The other end of the connecting spring (210) is fixedly connected to the side wall of the movable block (211). The connecting spring (210) is located inside the expansion tube (209). The expansion tube (209) is provided with a thermal expansion material. The vertical hole (213) is connected to the side groove (208), and the matching hole (212) matches the vertical hole (213). A plurality of heat dissipation holes (215) are symmetrically provided on one side of the movable block (211) close to the elastic bag (101), and the other end of the heat dissipation hole (215) corresponds to the expansion tube (209).

2. The odor collecting device according to claim 1, characterized in that: The elastic bag (101) is elastic, the bottom of the insertion tube (102) passes through the elastic bag (101) and is inserted into the recovery chamber (110), the top of the outer surface of the insertion tube (102) is provided with an external thread, the outer surface of the insertion tube (102) is threadedly connected with a threaded cover (103), the inner wall of the threaded cover (103) is threadedly connected to the top of the insertion tube (102), the inner bottom of the threaded cover (103) is provided with a top plug (104), and the top plug (104) is sealingly and slidably connected to the inner wall of the top of the insertion tube (102).

3. The odor collecting device according to claim 1, characterized in that: A sealing ring (105) is provided at the top of the outer surface of the elastic bag (101), and the top of the sealing ring (105) is fixedly connected to the bottom of the top seat (301). A fixing ring (109) is provided at the bottom of the outer surface of the elastic bag (101), and the bottom of the fixing ring (109) is fixedly connected to the top of the base (201). A plurality of filter holes (107) are evenly provided inside the elastic filter plate (106), and a plurality of docking holes (108) are evenly provided on the peripheral side surface of the elastic filter plate (106). A plurality of through holes (111) are evenly provided on the outer surface of the insertion tube (102), and the docking holes (108) match the through holes (111), and the collision block (309) is sealed and slidably connected to the through holes (111) and the docking holes (108).

4. The odor collecting device according to claim 1, characterized in that: A middle hole (302) is provided at the central axis of the top seat (301), the inner wall of the middle hole (302) is fixedly connected to the outer surface of the insertion tube (102), the outer surfaces of the plurality of air outlet hoses (207) are provided with blocking rings (303), the blocking rings (303) match the side walls of the top seat (301), and the diameter of the blocking rings (303) is larger than the diameter of the sliding hole (306), the top of the blocking ring (303) is provided with a hook (304), and the outer surface of the top seat (301) is evenly provided with a plurality of mounting rings (305), and the hooks (304) and the mounting rings (305) are mutually clamped.

5. The odor collecting device according to claim 1, characterized in that: An elastic ring plug (307) is provided on the outer surface of the output end of the air outlet hose (207), the output end of the air outlet hose (207) is inserted into the sliding hole (306), and the elastic ring plug (307) and the inner wall of the sliding hole (306) are mutually clamped, and a return spring (308) is provided on the side wall of the elastic ring plug (307), and the other end of the return spring (308) is fixedly connected to the side wall of the collision block (309), and the return spring (308) is located on the outer surface of the air outlet hose (207), and a plurality of air outlet holes (310) are evenly opened on the outer surface of the top seat (301), and the tops of the air outlet holes (310) are all connected to the sliding hole (306).

6. The odor collecting method of the odor collecting device according to claim 3, characterized in that: The following steps are involved: S1, the high-temperature gas inside the air inlet hose (205) enters the air outlet hose (207) along the matching hole (212) and the vertical hole (213), the air inlet hose (205) and the air outlet hose (207) preheat the elastic bag (101), and the high-temperature odor enters the recovery chamber (110) inside the elastic bag (101) along the insertion tube (102) for storage; S2. When the high-temperature odor inside the recovery chamber (110) accumulates to one side, the expansion tube (209) at the corresponding position expands and drives the movable block (211) to move toward the end of the elastic bag (101). The movable block (211) squeezes the elastic bag (101), and the movable block (211) drives the matching hole (212) to move. The overlapping area between the matching hole (212) and the vertical hole (213) decreases, and the air intake hose (205) moves along the matching hole (212). The amount of gas entering the air outlet hose (207) through the hole (212) and the vertical hole (213) is reduced, the amount of high-temperature gas discharged from the air outlet hose (207) to the sliding hole (306) is reduced, the thrust exerted by the high-temperature gas on the side wall of the collision block (309) is reduced, the extrusion force exerted by the collision block (309) on the side wall of the elastic filter plate (106) through the docking hole (108) and the through hole (111) is reduced, and the elastic filter plate (106) undergoes elastic deformation; S3, when the temperature of the high-temperature odor inside the recovery chamber (110) decreases, the expansion tube (209) contracts and drives the movable block (211) to move away from the elastic bag (101), the overlapping area of ​​the matching hole (212) and the vertical hole (213) increases, the amount of gas from the air intake hose (205) entering the air outlet hose (207) along the matching hole (212) and the vertical hole (213) increases, and the heating rate of the high-temperature odor inside the recovery chamber (110) by the air intake hose (205) and the air outlet hose (207) increases; S4. When the amount of high-temperature odor inside the recovery chamber (110) continues to increase and drives the elastic bag (101) to continue to expand, the air outlet hose (207) drives the collision block (309) to separate along the docking hole (108) and the through hole (111), and the high-temperature odor inside the recovery chamber (110) is discharged along the insertion tube (102) and the through hole (111) to the inside of the sliding hole (306) and discharged.

7. Application of the odor collecting device as claimed in claim 1 in odor detection and analysis.

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