Acid gas detection device

Abstract

The invention discloses an acid gas detection device which comprises a detection mechanism, a detection reagent used for detecting acid gas is arranged in the detection mechanism, the detection mechanism comprises a detection container, and a gas inlet pipe used for introducing detection gas into the detection container is arranged on one side of the detection container. The other side of the detection container is provided with a gas outlet pipe for discharging detection gas after reaction, the collection assembly is used for collecting precipitates and detection reagent waste liquid and is communicated with the detection mechanism, and the liquid supplementing assembly is used for supplementing a detection reagent into the detection mechanism and is communicated with the detection mechanism. According to the gas detection device, the detection container, the liquid supplementing assembly, the observation assembly and the collection assembly are matched for use, the detection reagent can react with gas introduced into the detection container to generate precipitates, so that whether the precipitates exist or not is observed through the observation assembly, a gas detection result can be obtained, and acidic substances in the gas can be removed.

Description

Technical Field

[0001] The present invention relates to the technical field of acidic gas detection, and particularly relates to an acidic gas detection device. Background Technique

[0002] Volatile H 2 S and CO 2 gases are common acidic gases in natural gas extraction, which can cause corrosion, deterioration of metal structures such as valves and pipelines, and synergistic effects with other environmental factors, thereby exacerbating equipment damage and affecting the service life of equipment.

[0003] Currently, the detection of acidic gases in the industry is based on two schemes: instrument gas determination method and sampling determination method. However, both schemes have their own deficiencies:

[0004] The accuracy of the gas instrument detection device in the pipeline is relative. For example, the relative standard error of the hydrogen sulfide detection tube is 5-10%, and that of sulfur dioxide, etc. is 10-15%. Accurate determination cannot be performed, and the gas instrument detection device cannot remove acidic substances in the discharged gas, and the gas discharge will pollute the air;

[0005] Although the sampling determination method is accurate in detection, direct sampling under high-pressure environments is relatively dangerous, and acidic gases cannot be detected in real time. Summary of the Invention

[0006] The purpose of the present invention is to provide an acidic gas detection device to solve the problems raised in the above background technique.

[0007] To achieve the above purpose, the present invention provides the following technical solution: An acidic gas detection device, comprising:

[0008] A detection mechanism, inside which a detection reagent for detecting acidic gases is provided;

[0009] The detection mechanism includes a detection container, on one side of the detection container, an air inlet pipe for introducing detection gas into the detection container is provided, and on the other side of the detection container, an air outlet pipe for discharging the detection gas after the reaction is provided;

[0010] A collection component for collecting precipitates and waste detection reagent liquid, and the collection component is connected to the detection mechanism;

[0011] A liquid replenishment component for replenishing the detection reagent into the detection mechanism, and the liquid replenishment component is connected to the detection mechanism.

[0012] Preferably, the detection mechanism includes:

[0013] Liquid level detector, which is installed on the detection container and is used to check the liquid level height of the detection reagent inside the detection container;

[0014] Precipitation tube, which is used for the detection container to discharge precipitates and waste detection reagent liquid, and the precipitation tube is connected to the bottom of the detection container;

[0015] Heat exchange tube, the outer wall of which is fixedly connected to the detection container;

[0016] First three-way pipe fitting, which is installed at the bottom of the precipitation tube, and the end of the first three-way pipe fitting is connected to the collection assembly;

[0017] Exhaust assembly, which is arranged inside the detection container and is used to discharge detection gas towards the inside of the detection reagent.

[0018] Preferably, it further includes:

[0019] Observation assembly, which is arranged at the bottom of the detection container and is used to observe the content of the detection precipitate. The observation assembly includes:

[0020] Sight glass and flange collar, the sight glass is installed at the end of the first three-way pipe fitting through the flange collar, and the sight glass is used to observe the precipitate falling from the precipitation tube.

[0021] Preferably, the collection assembly includes:

[0022] Liquid collection tank and first connecting pipe, the liquid collection tank is connected to the bottom on one side of the detection container through the first connecting pipe;

[0023] First pressure reducing valve and first ball valve, both the first pressure reducing valve and the first ball valve are installed on the first connecting pipe, and the first ball valve is located between the first pressure reducing valve and the liquid collection tank.

[0024] Preferably, the collection assembly further includes:

[0025] Recovery pipe, which is installed on one side of the liquid collection tank and is used to recover the waste detection reagent liquid;

[0026] Second three-way pipe fitting and safety valve, the safety valve is installed between the second three-way pipe fitting and the liquid collection tank through the first connecting pipe;

[0027] Third three-way pipe fitting, which is installed on the recovery pipe, and the third three-way pipe fitting is connected to the second three-way pipe fitting through the first connecting pipe;

[0028] Second ball valve, which is installed on the recovery pipe, and the second ball valve is located between the third three-way pipe fitting and the liquid collection tank.

[0029] Preferably, the liquid replenishing assembly includes:

[0030] A liquid replenishing tank, which is arranged at the top of the side of the detection container;

[0031] A liquid outlet pipe, which is fixedly installed between the liquid replenishing tank and the detection container;

[0032] An electromagnetic valve, which is installed on the liquid outlet pipe;

[0033] A ventilation pipe, which is installed between the liquid replenishing tank and the detection container, and the liquid replenishing tank, the detection container, the liquid outlet pipe and the ventilation pipe form an annular channel;

[0034] A third ball valve, which is installed on the ventilation pipe;

[0035] A pressure gauge, which is installed on the liquid replenishing tank, and the pressure gauge is used to detect the internal pressure of the liquid replenishing tank.

[0036] Preferably, the liquid replenishing assembly further includes:

[0037] A liquid injection pipe, which is installed on the top of the liquid replenishing tank;

[0038] A blind plate, which is installed at one end of the liquid injection pipe;

[0039] A check valve, which is installed on the liquid injection pipe;

[0040] A second connecting pipe, which is installed at the top of the side of the liquid replenishing tank, and the second connecting pipe is used to discharge the waste gas inside the liquid replenishing tank to the flare main pipe;

[0041] A second pressure reducing valve and a fourth ball valve, both of which are installed on the second connecting pipe, and the second pressure reducing valve is located between the fourth ball valve and the liquid replenishing tank.

[0042] Preferably, the exhaust assembly includes:

[0043] A connecting housing, which is rotatably sleeved on the end of the intake pipe;

[0044] An exhaust pipe, which is installed on the outside of the connecting housing in an annular array, and the exhaust pipe is located inside the detection reagent;

[0045] An exhaust hole, which is obliquely opened downward on the outside of the exhaust pipe.

[0046] Preferably, the exhaust assembly further includes:

[0047] A sealing shaft sleeve, which is sleeved between the connecting housing and the intake pipe;

[0048] The first set of rings, the first set of rings is fixedly installed on the outside of the intake pipe, and the first set of rings is located at the top of the sealing bushing;

[0049] The second set of rings, the second set of rings is fixedly installed on the outside of the intake pipe, and the second set of rings is located at the bottom of the sealing bushing;

[0050] The plain bearing, the plain bearing is sleeved on the outside of the intake pipe, and the plain bearing is located between the second set of rings and the sealing bushing.

[0051] Preferably, the anti-siphon assembly includes:

[0052] The sealing plug, the sealing plug is arranged inside the connecting housing, and the outer wall of the sealing plug is sleeved with the intake pipe;

[0053] The connecting piece, the connecting piece is fixedly connected to the side of the sealing plug;

[0054] The fixing rod, one end of the fixing rod is fixedly connected to the second set of rings, and the outer wall of the fixing rod is slidably inserted and sleeved with the connecting piece;

[0055] The limiting block, the limiting block is fixedly connected to the bottom of the fixing rod;

[0056] The support spring, the support spring is slidably sleeved on the outside of the fixing rod, and the support spring is located between the limiting block and the connecting piece.

[0057] The technical effects and advantages of the present invention:

[0058] (1) By using the cooperative use mode of the detection container, the detection reagent, the liquid supplement component, the observation component and the collection component, the detection reagent can react with the gas introduced into the detection container to generate precipitates. Thus, by observing whether there are precipitates through the observation component, the gas detection result can be obtained, and the acidic substances in the gas can also be removed, avoiding the corrosion of the pipeline by the gas and extending the service life of the equipment;

[0059] (2) By using the cooperative use mode of the detection container, the detection reagent and the exhaust component, the exhaust component includes a connecting housing, an exhaust pipe and an anti-siphon component. When the detection gas is discharged through the exhaust holes on the exhaust pipe, it can drive the connecting housing to rotate, thereby stirring the detection reagent, and then improving the reaction efficiency of the detection reagent with the acidic substances in the gas. And when the intake pipe stops injecting gas into the detection container, the anti-siphon component can prevent the detection reagent inside the detection container from flowing back into the intake pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0061] Figure 2Schematic front view of the collection component and detection container of the present invention.

[0062] Figure 3 Schematic side view of the liquid replenishment component and detection container of the present invention.

[0063] Figure 4 Schematic side view of the liquid replenishment tank of the present invention.

[0064] Figure 5 Schematic overall view of the detection container of the present invention.

[0065] Figure 6 Schematic internal top view of the detection container of the present invention.

[0066] Figure 7 Schematic internal front view of the detection container of the present invention.

[0067] Figure 8 Schematic internal front view of the connection housing of the present invention.

[0068] In the figure: 1, detection container; 2, liquid level detector; 3, heat exchange tube; 4, sight glass; 5, first three-way pipe fitting; 6, first pressure reducing valve; 7, first ball valve; 8, liquid collection tank; 9, safety valve; 10, second three-way pipe fitting; 11, second ball valve; 12, third three-way pipe fitting; 13, third ball valve; 14, liquid replenishment tank; 15, solenoid valve; 16, pressure gauge; 17, blind plate; 18, check valve; 19, second pressure reducing valve; 20, fourth ball valve; 101, intake pipe; 102, outlet pipe; 104, sedimentation pipe; 105, ventilation pipe; 106, liquid outlet pipe; 107, exhaust assembly; 171, connection housing; 172, exhaust pipe; 173, exhaust hole; 174, anti-siphon assembly; 1741, sealing plug; 1742, connecting piece; 1743, fixing rod; 1744, limiting block; 1745, support spring; 175, sealing shaft sleeve; 176, first collar; 177, second collar; 178, plain bearing. Detailed implementation manners

[0069] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0070] Embodiment 1

[0071] The present invention provides as Figures 1-7An acidic gas detection device shown in the figure includes a detection mechanism, a collection component, and a liquid replenishment component. Inside the detection mechanism, there is a detection reagent for detecting acidic gas. The detection reagent is used to react with the acidic gas introduced into the detection mechanism to generate precipitates. The detection mechanism includes a detection container 1, that is, the detection reagent is stored inside the detection container 1, and the bottom of the detection container 1 is funnel-shaped to facilitate the discharge of the precipitates generated by the reaction from the bottom of the detection container 1. One side of the detection container 1 is provided with an inlet pipe 101 for introducing the detection gas into the detection container 1, and the other side of the detection container 1 is provided with an outlet pipe 102 for discharging the detection gas after the reaction. The detection reagent is a mixed solution composed of copper hydroxide, barium hydroxide, etc. and potassium permanganate. Since the common acidic gases in natural gas extraction contain volatile H 2 S and CO 2 , potassium permanganate reacts with H 2 S to generate sulfur precipitates, barium hydroxide reacts with CO 2 to generate barium carbonate precipitates, and potassium permanganate does not react with barium hydroxide. Subsequently, NaOH can be added to the waste liquid of the detection reagent for desulfurization precipitation, so as to reduce the reaction of the subsequent waste liquid and reuse the detection reagent. The collection component is used to collect the precipitates and the waste liquid of the detection reagent. The collection component is connected to the detection mechanism. The liquid replenishment component is used to replenish the detection reagent into the detection mechanism, so that the acidic gas can be continuously detected. The liquid replenishment component is connected to the detection mechanism.

[0072] Further, the detection mechanism includes a liquid level detector 2, a sedimentation tube 104, a heat exchange tube 3, a first three-way pipe fitting 5, and an exhaust assembly 107. The liquid level detector 2 is installed on the detection container 1 and is used to check the liquid level height of the detection reagent inside the detection container 1. The outer wall of the heat exchange tube 3 is fixedly connected to the detection container 1. The liquid level detector 2 is a hydrostatic liquid level detector, which calculates the liquid level height by measuring the liquid static pressure. The sedimentation tube 104 is used to discharge the sediment and the waste liquid of the detection reagent from the detection container 1. The sedimentation tube 104 is connected to the bottom of the detection container 1. High-temperature oil can pass through the heat exchange tube 3 to heat the detection reagent mixture inside the detection container 1. Since there must be a certain amount of moisture in the gas when detecting the gas composition after the wet and dry desulfurization and decarbonization of natural gas, the liquid level in the detection container 1 will increase with time. When the liquid level is higher than the highest value set by the liquid level detector 2, the liquid level detector 2 will issue an alarm and make the heat exchange tube 3 work to heat the inside of the detection container 1. The heat-conducting oil in the heat exchange tube 3 will heat the liquid inside the detection container 1 to accelerate the evaporation of the liquid until the liquid level drops to the lowest set liquid level, and then stop the heat exchange tube 3 from heating the liquid inside the detection container 1. The first three-way pipe fitting 5 is installed at the bottom of the sedimentation tube 104, and the end of the first three-way pipe fitting 5 is connected to the collection assembly. The exhaust assembly 107 is arranged inside the detection container 1. The exhaust assembly 107 is used to discharge the detection gas into the detection reagent and discharge it into the detection reagent through the exhaust assembly 107, so that the detection reagent reacts with the acidic substances in the gas to be detected. The outlet pipe 102 is installed at the top on one side of the detection container 1. As Figure 2 shown, the non-reactive gas flows out from the B direction of the outlet pipe 102.

[0073] In particular, it further includes an observation assembly. The observation assembly is arranged at the bottom of the detection container 1 and is used to observe the content of the detected sediment, that is, to observe the sulfur sediment and barium carbonate sediment, so as to determine whether there are acidic substances in the detected gas and react to remove the acidic substances, thereby improving the environmental protection of the acidic gas detection. The observation assembly includes a sight glass 4 and a flange collar. The sight glass 4 is installed at the end of the first three-way pipe fitting 5 through the flange collar. The sediment falling from the sedimentation tube 104 can be observed through the sight glass 4. The sediment falling from the sedimentation tube 104 can be directly observed through the sight glass 4, or the substance falling from the sedimentation tube 104 can be photographed and identified by means of photography.

[0074] Further, the collection assembly includes a liquid collection tank 8, a first connecting pipe, a first pressure reducing valve 6, and a first ball valve 7. The liquid collection tank 8 is connected to the bottom on one side of the detection container 1 through the first connecting pipe. The first pressure reducing valve 6 and the first ball valve 7 are both installed on the first connecting pipe. The first ball valve 7 is located between the first pressure reducing valve 6 and the liquid collection tank 8. By directly observing the sediment through the sight glass 4, when there is more sediment, the first ball valve 7 can be opened. The mixture and sediment inside the detection container 1 will move along under the dual action of pressure and gravityFigure 2 In the C-D direction, it flows out from the first three-way pipe fitting 5, passes through the first pressure reducing valve 6 and the first ball valve 7, and then flows into the liquid collection tank 8. The collection assembly further includes a recovery pipe, a second three-way pipe fitting 10, a safety valve 9, a third three-way pipe fitting 12, and a second ball valve 11. The recovery pipe is installed on one side of the liquid collection tank 8 and is used to recover the waste liquid of the test reagent. The safety valve 9 is installed between the second three-way pipe fitting 10 and the liquid collection tank 8 through a first connecting pipe. The third three-way pipe fitting 12 is installed on the recovery pipe, and the third three-way pipe fitting 12 is connected to the second three-way pipe fitting 10 through a first connecting pipe. The second ball valve 11 is installed on the recovery pipe, and the second ball valve 11 is located between the third three-way pipe fitting 12 and the liquid collection tank 8. The second three-way pipe fitting 10 is connected to the flare header. As Figure 2 shown, the excessive pressure causes the gas in the liquid collection tank 8 to overflow along the F direction from the safety valve 9 and the second three-way pipe fitting 10 to the flare header, and the unreacted acidic gas is burned. When a certain amount of solvent is collected in the liquid collection tank 8, the second ball valve 11 can be gently opened to flow out, and the sediment components are detected and recycled to prepare a new test solvent. As Figure 2 shown, a part of the residual gas in the liquid collection tank 8 goes to the flare header along the H direction.

[0075] Furthermore, the liquid supplement assembly includes a liquid supplement tank 14, a liquid outlet pipe 106, a solenoid valve 15, a ventilation pipe 105, a third ball valve 13, and a pressure gauge 16. The liquid supplement tank 14 is arranged at the top of the side of the test container 1. The liquid outlet pipe 106 is fixedly installed between the liquid supplement tank 14 and the test container 1. The solenoid valve 15 is installed on the liquid outlet pipe 106. The ventilation pipe 105 is installed between the liquid supplement tank 14 and the test container 1. The third ball valve 13 is installed on the ventilation pipe 105. The liquid supplement tank 14, the test container 1, the liquid outlet pipe 106, and the ventilation pipe 105 form an annular channel. Thus, the test reagent inside the liquid supplement tank 14 enters the inside of the test container 1 through the annular channel, and the gas inside the test container 1 enters the inside of the liquid supplement tank 14 through the annular channel, so as to balance the pressure inside the liquid supplement tank 14 and the test container 1 during liquid supplement. After the mixed liquid inside the test container 1 is emptied, the first ball valve 7 is closed, the third ball valve 13 and the solenoid valve 15 are opened, and the test reagent in the liquid supplement tank 14 flows out from the liquid supplement tank 14 along the J direction under the dual action of pressure and gravity and is poured into the test container 1. The gas inside the test container 1 flows into the liquid supplement tank 14 along the K direction. As Figure 3 shown, until the liquid level meets the minimum requirement set by the liquid level detector 2. At this time, the third ball valve 13 and the solenoid valve 15 are closed, and the liquid supplement of the test container 1 is completed. The pressure gauge 16 is installed on the liquid supplement tank 14, and the pressure gauge 16 is used to detect the internal pressure of the liquid supplement tank 14.

[0076] Further, the liquid replenishing assembly further includes a liquid injection pipe, a blind plate 17, a check valve 18, a second connecting pipe, a second pressure reducing valve 19, and a fourth ball valve 20. The liquid injection pipe is installed at the top of the liquid replenishing tank 14. The blind plate 17 is installed at one end of the liquid injection pipe. The check valve 18 is installed on the liquid injection pipe. The second connecting pipe is installed at the top of the side of the liquid replenishing tank 14. The second connecting pipe is used to discharge the exhaust gas inside the liquid replenishing tank 14 to the flare header. The second pressure reducing valve 19 and the fourth ball valve 20 are both installed on the second connecting pipe. The second pressure reducing valve 19 is located between the fourth ball valve 20 and the liquid replenishing tank 14. When the liquid remaining in the liquid replenishing tank 14 is insufficient, the fourth ball valve 20 is opened. As Figure 4 at any time, the gas inside the liquid replenishing tank 14 is discharged outward along the L direction, passing through the second pressure reducing valve 19 and the fourth ball valve 20 to the flare header. When the value of the pressure gauge 16 remains unchanged, the blind plate 17 is opened and the fourth ball valve 20 is closed. The solution is added from the outside. When the solution rises to the set liquid level, the addition is stopped. Helium is blown in from the position where the blind plate 17 is located, and the second ball valve 11 is gradually closed to seal the blind plate 17. Observe the change of the pressure gauge 16. If the value does not change much for a long time, it indicates that the blind plate 17 is well sealed. If it shows a downward trend or approaches the atmospheric pressure infinitely, check the sealing condition at the blind plate 17.

[0077] Embodiment 2

[0078] Based on Embodiment 1, as Figure 8 shown, the exhaust assembly 107 includes a connection housing 171, an exhaust pipe 172, and an exhaust hole 173. The connection housing 171 is rotatably sleeved on the end of the intake pipe 101. The exhaust pipes 172 are arranged in an annular array on the outside of the connection housing 171. The high-pressure gas introduced into the intake pipe 101 enters the inside of the connection housing 171. The exhaust pipes 172 are located inside the test reagent. The exhaust holes 173 are obliquely downwardly formed on the outside of the exhaust pipes 172. The high-pressure gas inside the connection housing 171 is obliquely downwardly discharged into the test reagent through the exhaust holes 173 on the plurality of exhaust pipes 172, so as to give a reverse thrust to the exhaust pipes 172, causing the exhaust pipes 172 to drive the connection housing 171 to rotate relative to the intake pipe 101. Therefore, the exhaust pipes 172 outside the connection housing 171 can also stir the test reagent, thereby accelerating the reaction efficiency between the test reagent and the gas to be detected. The density of the plurality of exhaust holes 173 on the outside of the exhaust pipes 172 gradually increases in the direction away from the center of the connection housing 171. Since the circumferences of different positions of the exhaust pipes 172 are different when the exhaust pipes 172 rotate relative to the intake pipe 101 following the connection housing 171, and the density of the exhaust holes 173 gradually increases in the direction away from the center of the connection housing 171, the uniformity of the gas to be detected entering the test reagent can be improved.

[0079] Further, the exhaust assembly 107 further includes a sealing shaft sleeve 175, a first collar 176, a second collar 177, and a plain bearing 178. The sealing shaft sleeve 175 is sleeved between the connecting housing 171 and the intake pipe 101. The sealing shaft sleeve 175 can improve the sealing performance between the connecting housing 171 and the intake pipe 101. The first collar 176 is fixedly installed outside the intake pipe 101. The first collar 176 is located at the top of the sealing shaft sleeve 175, and bolts can also be installed on the first collar 176 to lock the connecting housing 171, so that the plurality of exhaust pipes 172 are in a static state for exhausting gas. The second collar 177 is fixedly installed outside the intake pipe 101. The second collar 177 is located at the bottom of the sealing shaft sleeve 175. The plain bearing 178 is sleeved outside the intake pipe 101. The plain bearing 178 is located between the second collar 177 and the sealing shaft sleeve 175. The first collar 176 and the second collar 177 can limit the position of the connecting housing 171, and the plain bearing 178 can reduce the frictional force when the connecting housing 171 rotates.

[0080] Furthermore, the anti-siphon assembly 174 includes a sealing plug 1741, a connecting member 1742, a fixing rod 1743, a limiting block 1744, and a support spring 1745. The sealing plug 1741 is disposed inside the connecting housing 171. The outer wall of the sealing plug 1741 is sleeved with the intake pipe 101. When the intake pipe 101 discharges gas, the gas can squeeze the sealing plug 1741 to separate from the intake pipe 101, so that the intake pipe 101 discharges gas into the connecting housing 171. The connecting member 1742 is fixedly connected to the side of the sealing plug 1741. One end of the fixing rod 1743 is fixedly connected to the second collar 177. The outer wall of the fixing rod 1743 is slidably inserted and sleeved with the connecting member 1742. The limiting block 1744 is fixedly connected to the bottom of the fixing rod 1743. The support spring 1745 is slidably sleeved outside the fixing rod 1743. The support spring 1745 is located between the limiting block 1744 and the connecting member 1742. The support spring 1745 can give the sealing plug 1741 an elastic force towards the intake pipe 101 through the connecting member 1742. Thus, when the intake pipe 101 no longer discharges gas, the sealing plug 1741 can seal the intake pipe 101 to provide anti-siphon protection for the intake pipe 101.

[0081] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An acid gas detection device, characterized in that: include: A detection mechanism, wherein a detection reagent for detecting acidic gas is arranged inside the detection mechanism; The detection mechanism comprises a detection container (1), one side of the detection container (1) is provided with an inlet pipe (101) for introducing detection gas into the detection container (1), and the other side of the detection container (1) is provided with an outlet pipe (102) for discharging the detection gas after reaction; A collecting component, the collecting component is used to collect the precipitate and the detection reagent waste liquid, and the collecting component is connected to the detection mechanism; A fluid replenishment component is used to replenish detection reagents into the detection mechanism, and the fluid replenishment component is connected to the detection mechanism.

2. An acid gas detection device according to claim 1, characterized in that: The detection mechanism also includes: A liquid level detector (2), the liquid level detector (2) being mounted on the detection container (1), the liquid level detector (2) being used to check the liquid level of the detection reagent inside the detection container (1); A heat exchange tube (3), the outer wall of the heat exchange tube (3) being fixedly connected to the detection container (1); A sedimentation tube (104), the sedimentation tube (104) is used to discharge sediment and detection reagent waste liquid from the detection container (1), and the sedimentation tube (104) is connected to the bottom of the detection container (1); A first three-way pipe fitting (5), the first three-way pipe fitting (5) being installed at the bottom of the sedimentation pipe (104), and an end of the first three-way pipe fitting (5) being connected to a collection assembly; An exhaust component (107), wherein the exhaust component (107) is arranged inside the detection container (1), and the exhaust component (107) is used to discharge detection gas into the interior of the detection reagent.

3. An acid gas detection device according to claim 2, characterized in that: Also includes: An observation component is arranged at the bottom of the detection container (1), and is used to observe the content of the detection sediment. The observation component comprises: A sight glass (4) and a flange collar, wherein the sight glass (4) is installed at the end of the first three-way pipe member (5) through the flange collar, and the sight glass (4) is used to observe the sediment dropped from the sedimentation pipe (104).

4. An acid gas detection device according to claim 3, characterized in that: The collection component comprises: A liquid collecting tank (8) and a first connecting pipe, wherein the liquid collecting tank (8) is connected to the bottom of one side of the detection container (1) via the first connecting pipe; A first pressure reducing valve (6) and a first ball valve (7), wherein the first pressure reducing valve (6) and the first ball valve (7) are both installed on a first connecting pipe, and the first ball valve (7) is located between the first pressure reducing valve (6) and the liquid collecting tank (8).

5. An acid gas detection device according to claim 4, characterized in that: The collection component also includes: A recovery pipe, the recovery pipe is installed on one side of the liquid collecting tank (8), and the recovery pipe is used to recover the waste liquid of the detection reagent; a second three-way pipe fitting (10) and a safety valve (9), wherein the safety valve (9) is installed between the second three-way pipe fitting (10) and the liquid collecting tank (8) via a first connecting pipe; A third three-way pipe fitting (12), the third three-way pipe fitting (12) being installed on the recovery pipe, the third three-way pipe fitting (12) being connected to the second three-way pipe fitting (10) via a first connecting pipe; A second ball valve (11), the second ball valve (11) is installed on the recovery pipe, and the second ball valve (11) is located between the third three-way pipe fitting (12) and the liquid collecting tank (8).

6. An acid gas detection device according to claim 2, characterized in that: The fluid replenishment component comprises: A liquid replenishing tank (14), wherein the liquid replenishing tank (14) is arranged on the top of the detection container (1); A liquid outlet pipe (106), wherein the liquid outlet pipe (106) is fixedly installed between the liquid replenishing tank (14) and the detection container (1); A solenoid valve (15), wherein the solenoid valve (15) is installed on the liquid outlet pipe (106); a vent pipe (105), wherein the vent pipe (105) is installed between the liquid replenishing tank (14) and the detection container (1), and the liquid replenishing tank (14), the detection container (1), the liquid outlet pipe (106) and the vent pipe (105) form an annular channel; a third ball valve (13), the third ball valve (13) being mounted on the vent pipe (105); A pressure gauge (16), the pressure gauge (16) is installed on the fluid infusion tank (14), and the pressure gauge (16) is used to detect the internal pressure of the fluid infusion tank (14).

7. An acid gas detection device according to claim 6, characterized in that: The fluid replenishment component also includes: A liquid injection pipe, the liquid injection pipe is installed on the top of the liquid infusion tank (14); A blind plate (17), wherein the blind plate (17) is installed at one end of the liquid injection pipe; A check valve (18), wherein the check valve (18) is installed on the liquid injection pipe; A second connecting pipe, the second connecting pipe is installed on the top of the side of the liquid replenishing tank (14), and the second connecting pipe is used to discharge the exhaust gas inside the liquid replenishing tank (14) to the flare main pipe; A second pressure reducing valve (19) and a fourth ball valve (20), wherein the second pressure reducing valve (19) and the fourth ball valve (20) are both installed on the second connecting pipe, and the second pressure reducing valve (19) is located between the fourth ball valve (20) and the liquid replenishing tank (14).

8. An acid gas detection device according to claim 2, characterized in that: Also includes: An exhaust component (107), the exhaust component (107) being arranged at one end of the air inlet pipe (101), the exhaust component (107) being used to discharge the detection gas, the exhaust component (107) comprising: A connecting shell (171), wherein the connecting shell (171) is rotatably sleeved on the end of the air inlet pipe (101); An exhaust pipe (172), wherein the exhaust pipe (172) is installed in a ring array outside the connection shell (171), and the exhaust pipe (172) is located inside the detection reagent; An exhaust hole (173), the exhaust hole (173) being opened at the outside of the exhaust pipe (172) in an inclined downward direction; An anti-siphon component (174), wherein the anti-siphon component (174) is arranged at the air outlet end of the air inlet pipe (101).

9. An acid gas detection device according to claim 8, characterized in that: The exhaust assembly (107) further comprises: A sealing sleeve (175), wherein the sealing sleeve (175) is sleeved between the connecting housing (171) and the air intake pipe (101); A first collar (176), the first collar (176) being fixedly mounted on the outside of the air inlet pipe (101), the first collar (176) being located on the top of the sealing sleeve (175); A second collar (177), the second collar (177) being fixedly mounted on the outside of the air inlet pipe (101), the second collar (177) being located at the bottom of the sealing sleeve (175); A plane bearing (178) is sleeved on the outside of the intake pipe (101), and the plane bearing (178) is located between the second sleeve ring (177) and the sealing sleeve (175).

10. An acid gas detection device according to claim 9, characterized in that: The anti-siphon assembly (174) comprises: A sealing plug (1741), the sealing plug (1741) being arranged inside the connecting shell (171), and the outer wall of the sealing plug (1741) being sleeved with the air inlet pipe (101); A connecting piece (1742), wherein the connecting piece (1742) is fixedly connected to a side of the sealing plug (1741); A fixing rod (1743), one end of which is fixedly connected to the second sleeve ring (177), and the outer wall of the fixing rod (1743) is slidably inserted and sleeved with the connecting piece (1742); A limit block (1744), wherein the limit block (1744) is fixedly connected to the bottom of the fixing rod (1743); A support spring (1745), wherein the support spring (1745) is slidably sleeved on the outside of the fixing rod (1743), and the support spring (1745) is located between the limiting block (1744) and the connecting member (1742).

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