A synthetic detection system

Abstract

This invention provides a synthesis detection system, including a first gas supply device, a second gas supply device, a mixing device, a reaction device, and a finished product detection device. The mixing device includes two flow regulating components and a mixing component. The inlet ends of the two flow regulating components are respectively connected to the first gas supply device and the second gas supply device, and the outlet ends of the two flow regulating components are connected to the inlet end of the mixing component. The flow regulating components are used to adjust the supply ratio of the first gas and the second gas. The reaction device is connected to the outlet end of the mixing component to allow the first gas and the second gas to react. The finished product detection device is connected to the reaction device and is used to detect the reaction product. This invention utilizes the finished product detection device to detect the quality of the finished product. Users can adjust the flow regulating components and the supply ratio of the first gas and the second gas based on the detection results of the finished product detection device to optimize the quality of the finished product.

Description

Technical Field

[0001] This utility model relates to the field of vinyl chloride manufacturing equipment technology, and in particular to a synthesis detection system. Background Technology

[0002] Vinyl chloride is the monomer used to synthesize polyvinyl chloride (PVC), one of the world's most produced resins. PVC possesses excellent mechanical strength, stable chemical properties, and ease of processing, making it widely used in industry, agriculture, building materials, and everyday consumer goods. Vinyl chloride is generally produced via the acetylene process. To ensure optimal preparation results, both hydrogen chloride and acetylene gases need to be dried to guarantee the reaction proceeds.

[0003] For example, patent application CN212492290U provides a drying system for acetylene-based vinyl chloride feed gas, relating to the field of acetylene-based vinyl chloride process technology. The drying system includes an acetylene purification tower connected to an acetylene inlet pipeline and a first sulfuric acid inlet pipeline, a hydrogen chloride drying tower connected to a hydrogen chloride inlet pipeline and a second sulfuric acid inlet pipeline, and a mixer. This allows sulfuric acid to be used in the acetylene purification tower to remove sulfur and phosphorus from the acetylene and to remove moisture from the acetylene. Similarly, sulfuric acid is used in the hydrogen chloride drying tower to remove moisture from the hydrogen chloride. The mixer is connected to both the acetylene outlet pipeline and the hydrogen chloride outlet pipeline, allowing the separately dried acetylene and hydrogen chloride to mix within the mixer. By implementing this technical solution, the existing cryogenic dehydration process cannot meet the dehydration requirements. By drying and dehydrating acetylene and HCl separately before mixing, the water content of the mixed gas is below 20 ppm, which is far lower than that of existing cryogenic dehydration processes, effectively meeting the dehydration requirements of the acetylene-based feed gas.

[0004] The above scheme has the following problems: the reaction process of acetylene and hydrogen chloride is actually affected by environmental factors, and its ratio is not constant. It needs to be adjusted according to the real-time reaction situation. Utility Model Content

[0005] In view of this, it is necessary to provide a synthesis detection system that can adjust the ratio of acetylene and hydrogen chloride according to the real-time reaction conditions.

[0006] This utility model provides a synthetic detection system, comprising:

[0007] A first gas supply device is used to supply a first gas;

[0008] A second gas supply device is used to supply a second gas;

[0009] A mixing device includes two flow regulating components and a mixing component. The inlet ends of the two flow regulating components are respectively connected to the first gas supply device and the second gas supply device, and the outlet ends of the two flow regulating components are connected to the inlet end of the mixing component. The flow regulating components are used to adjust the supply ratio of the first gas and the second gas.

[0010] A reaction apparatus, connected to the outlet of the mixing assembly, allows the first gas to react with the second gas; and

[0011] A finished product testing device is connected to the reaction device and is used to test the reaction product.

[0012] In some feasible solutions, the flow regulating component includes a flow meter and a regulating valve. The inlet of the flow meter is connected to the first or second air supply device, the outlet of the flow meter is connected to the regulating valve, and the regulating valve is connected to the inlet of the mixing component.

[0013] Some feasible solutions also include a drying device, which includes two primary drying modules and two secondary drying modules. The two primary drying modules are respectively connected to the first gas supply device and the second gas supply device, and are used to dry the first gas and the first and second gases, respectively. The two secondary drying modules are respectively connected to the two primary drying modules, and are used to detect and indicate whether the gas is dry.

[0014] In some feasible solutions, the primary drying module includes several primary dryers, an air inlet pipe, and an air outlet pipe. The air inlet pipe is connected to the air inlet end of several primary dryers, and the air outlet pipe is connected to the air outlet end of several primary dryers.

[0015] In some feasible solutions, the air intake pipe includes a main air intake pipe and a branch air intake pipe. The branch air intake pipe is configured one-to-one with the primary dryer. One end of the branch air intake pipe is connected to the air intake end of the primary dryer, and the other end is connected to the main air intake pipe. The branch air intake pipe is equipped with an air intake valve to control the opening or closing of the branch air intake pipe.

[0016] In some feasible solutions, the exhaust pipe includes a main exhaust pipe and exhaust branch pipes. Each exhaust branch pipe is configured to correspond one-to-one with the primary dryer. One end of each exhaust branch pipe is connected to the exhaust end of the primary dryer, and the other end is connected to the main exhaust pipe. Each exhaust branch pipe is equipped with an exhaust valve to control the opening or closing of the exhaust branch pipe.

[0017] In some feasible solutions, the reaction device includes a reaction tube and a first sealing element. One end of the reaction tube is provided with a first opening. A gas inlet pipe and a gas outlet pipe, which are only for gas flow, extend from the side wall of the reaction tube. A gas reaction zone filled with catalyst and for gas to react is formed inside the reaction tube. The first sealing element is detachably connected to the first opening to seal the gas reaction zone.

[0018] In some feasible solutions, the first seal includes a first insert plug and a first fixing member. The first insert plug is at least partially able to extend into the first opening and be press-fitted into the interior of the reaction tube. The first fixing member is fixed to the portion of the first insert plug located outside the reaction tube and is detachably fixed to the reaction tube.

[0019] In some feasible solutions, the first seal further includes a catalyst support, which is fixed to the portion of the first insert plug that extends into the first opening.

[0020] In some feasible solutions, the finished product testing device includes a water washing tank and a gas chromatograph. The inlet of the water washing tank is connected to the reaction device, and the outlet of the water washing tank is connected to the gas chromatograph. The water washing tank washes the finished product gas generated by the reaction with water to remove impurities before guiding it to the gas chromatograph for detection.

[0021] The beneficial effects of this utility model are as follows:

[0022] This invention includes a first gas supply device, a second gas supply device, a mixing device, a reaction device, and a finished product testing device. The first gas supply device provides a first gas. The second gas supply device provides a second gas. The mixing device includes two flow regulating components and a mixing component. The inlet ends of the two flow regulating components are respectively connected to the first gas supply device and the second gas supply device, and the outlet ends of the two flow regulating components are connected to the inlet end of the mixing component. The flow regulating components are used to adjust the supply ratio of the first gas and the second gas. The reaction device is connected to the outlet end of the mixing component to allow the first gas and the second gas to react. The finished product testing device is connected to the reaction device to test the reaction product. This invention utilizes the finished product testing device to detect the quality of the finished product. Users can adjust the flow regulating components and the supply ratio of the first gas and the second gas based on the test results of the finished product testing device to optimize the quality of the finished product. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the synthetic detection system in this utility model;

[0025] Figure 2 As shown Figure 1 Schematic diagram of the structure of the intermediate drying device;

[0026] Figure 3 As shown Figure 1 A schematic diagram of the structure of the mixing device;

[0027] Figure 4 As shown Figure 1 A schematic diagram of the structure of the reaction apparatus;

[0028] Figure 5 As shown Figure 4 Schematic diagram of the structure of the center support pallet;

[0029] Wherein: 1-First gas supply device, 2-Second gas supply device, 3-Drying device, 31-First-stage drying module, 311-First-stage dryer, 311a-First-stage upper cover, 311b-First-stage tank, 311c-First-stage lower cover, 312-Inlet pipe, 312a-Main inlet pipe, 312b-Branch inlet pipe, 312c-Inlet valve, 313-Outlet pipe, 313a-Main outlet pipe, 313b-Branch outlet pipe, 313c-Outlet valve, 32-Second-stage drying module, 321-Second-stage upper cover, 322-Second-stage tank, 323-Second-stage lower cover, 4-Mixing device, 41-Flow regulating component, 411-Flow rate... 412-Regulating valve, 42-Mixing assembly, 5-Reaction device, 51-Reaction tube, 511-First opening, 511a-First flange, 512-Gas inlet pipe, 513-Gas outlet pipe, 514-Second opening, 514a-Second flange, 52-First seal, 521-First insert plug, 522-First fixing element, 523-Catalyst support, 523a-Upright rod, 523b-Support tray, 523c-Ventilation hole, 53-Second seal, 531-Second insert plug, 532-Second fixing element, 54-Heating sleeve, 541-Fluid inlet, 542-Fluid outlet, 6-Finished product testing device. Detailed Implementation

[0030] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0031] like Figure 1 , Figure 2 As shown, an embodiment of this utility model provides a synthesis detection system, comprising: a first gas supply device 1 for supplying a first gas; a second gas supply device 2 for supplying a second gas; a mixing device 4, comprising two flow regulating components 41 and a mixing component 42, wherein the inlet ends of the two flow regulating components 41 are respectively connected to the two first gas supply devices 1 and the two second gas supply devices 2, and the outlet ends of the two flow regulating components 41 are connected to the inlet end of the mixing component 42, and the flow regulating components 41 are used to adjust the supply ratio of the first gas and the second gas; a reaction device 5, which is connected to the mixing device 4 to react the first gas and the second gas to generate a finished product gas; and a finished product detection device 6, which is connected to the reaction device 5 for detecting the finished product gas.

[0032] In this invention, a secondary drying module 2 is added to the rear end of the primary drying module 31. The secondary drying module can detect whether the gas is completely dried. When the primary drying module 31 cannot completely dry the gas due to a decrease in the efficiency of the internal drying material, the secondary drying module 32 can detect in a timely manner that the gas has not been completely dried, indicating that the drying capacity of the drying material in the primary drying module 31 has decreased and needs to be replaced. This allows the operator to promptly detect the failure of the drying material and replace it in time, ensuring the quality of the vinyl chloride product.

[0033] Specifically, the first gas supply device 1 is a hydrogen chloride storage tank, which is connected to the primary drying module 31 via a pipeline. The hydrogen chloride storage tank and the pipeline are detachably connected, and the pipeline is equipped with a valve to control its opening and closing. When the gas supply in the hydrogen chloride storage tank is insufficient, the valve can be closed and the hydrogen chloride storage tank can be replaced.

[0034] Specifically, the second gas supply device 2 is an acetylene storage tank, which is connected to the primary drying module 31 via a pipeline. The acetylene storage tank and the pipeline are detachably connected, and the pipeline is equipped with a valve to control its opening and closing. When the gas supply in the acetylene storage tank is insufficient, the valve can be closed and the acetylene storage tank can be replaced.

[0035] Specifically, it also includes a drying device 3, which includes two primary drying modules 31 and two secondary drying modules 32. The two primary drying modules 31 are respectively connected to the first gas supply device 1 and the second gas supply device 2, and are used to dry the first gas and the second gas respectively. The two secondary drying modules 32 are respectively connected to the two primary drying modules 31, and are used to detect whether the gas is dry.

[0036] Specifically, the primary drying module 31 includes a plurality of primary dryers 311, an air inlet pipe 312, and an air outlet pipe 313. The air inlet pipe 312 is connected to the air inlet ends of the plurality of primary dryers 311, and the air outlet pipe 313 is connected to the air outlet ends of the plurality of primary dryers 311. In this invention, the parallel arrangement of multiple primary dryers 311 enhances the gas drying capacity of the primary drying module 31 per unit time, effectively improving the gas drying efficiency.

[0037] Furthermore, the air intake pipe 312 includes an air intake main pipe 312a and an air intake branch pipe 312b. The air intake branch pipe 312b is configured in a one-to-one correspondence with the first-stage dryer 311. One end of the air intake branch pipe 312b is connected to the air intake end of the first-stage dryer 311, and the other end is connected to the air intake main pipe 312a. The air intake branch pipe 312b is provided with an air intake valve 312c for controlling the opening or closing of the air intake branch pipe 312b.

[0038] Furthermore, the exhaust pipe 313 includes an exhaust main pipe 313a and an exhaust branch pipe 313b. The exhaust branch pipe 313b is configured in a one-to-one correspondence with the primary dryer 311. One end of the exhaust branch pipe 313b is connected to the exhaust end of the primary dryer 311, and the other end is connected to the exhaust main pipe 313a. The exhaust branch pipe 313b is provided with an exhaust valve 313c for controlling the opening or closing of the exhaust branch pipe 313b.

[0039] In use, the desiccant can be replaced without damage by controlling the various inlet valves 312c and outlet valves 313c. For example, only some of the inlet valves 312c and outlet valves 313c can be opened, allowing gas to pass through only a portion of the primary dryer 311. When the secondary dryer 2 located in the primary dryer 31 changes color, the currently open inlet valves 312c and outlet valves 313c are closed, and the previously closed inlet valves 312c and outlet valves 313c are opened. This achieves the switching of the primary dryer 311. At this time, the less efficient primary dryer 311 can be removed, and the desiccant inside can be replaced.

[0040] Furthermore, the primary dryer 311 includes a primary upper cover 311a, a primary tank 311b, and a primary lower cover 311c. The primary upper cover 311a is detachably connected to one end of the primary tank 311b, and the primary lower cover 311c is detachably connected to the other end of the primary tank 311b. The primary tank 311b is filled with a drying substance.

[0041] Furthermore, the primary cover 311a includes a cover body and an air distribution plate. The air distribution plate is fixed to the inner wall of the cover body and forms a contact surface that abuts against the primary tank 311b. The air distribution plate can evenly distribute the flowing gas, allowing the gas to enter the primary tank 311b at a uniform speed, thus improving the gas drying effect. In addition, the air distribution plate can also support the drying material inside the primary tank 311b.

[0042] In this embodiment, the drying substance in the primary tank 311b is either a molecular sieve desiccant or alumina, with molecular sieve desiccant and alumina having good drying effects.

[0043] Specifically, the secondary drying module 32 includes a secondary upper cover 321, a secondary tank 322, and a secondary lower cover 323. The secondary upper cover 321 is detachably connected to one end of the secondary tank 322, and the secondary lower cover 323 is detachably connected to the other end of the secondary tank 322. The secondary tank 322 is filled with a desiccant that changes color when it comes into contact with water. An observation window is provided on the surface of the secondary tank 322 to facilitate observation of the color of the desiccant inside the secondary tank 322.

[0044] In this embodiment, the secondary tank 322 is filled with color-changing silica gel. The main component of the color-changing silica gel is cobalt chloride, which is highly toxic and has a strong adsorption effect on water vapor in the air. Simultaneously, it displays different colors depending on the amount of cobalt chloride water of crystallization it contains; that is, it gradually changes from blue before moisture absorption to light red as the amount of moisture absorbed increases. The user can observe the color of the internal color-changing silica gel through the observation window on the surface of the secondary tank 322. Once the color-changing silica gel changes color, it indicates that the drying efficiency of the primary drying module 31 has decreased and it needs to be replaced.

[0045] Specifically, such as Figure 3 As shown, the flow regulating component 41 is used to regulate the gas flow rate so that hydrogen chloride gas and acetylene gas are introduced into the mixing component 42 in a specific ratio. The mixing component 42 is used to mix the gases and then send them into the reaction device 5 for reaction.

[0046] Furthermore, the flow regulating component 41 includes a flow meter 411 and a regulating valve 412. The inlet end of the flow meter 411 is connected to the secondary drying module 32, and the outlet end of the flow meter 411 is connected to the regulating valve 412. The regulating valve 412 is connected to the inlet end of the mixing component 42. In use, the user can adjust the regulating valve 412 according to the flow rate detected by the flow meter 411, so that hydrogen chloride gas and acetylene gas are introduced into the mixing component 42 in a specific ratio.

[0047] Furthermore, the mixing assembly 42 includes a mixing tank, a stirring motor, a stirring shaft, and stirring blades. The mixing tank is equipped with a feed valve connected to the flow regulating assembly 41 and a discharge valve connected to the reaction device 5. The stirring motor is fixed to the mixing tank, one end of the stirring shaft is fixed to the output end of the stirring motor, and the other end extends into the mixing tank. The stirring blades are fixed to the end of the stirring shaft located inside the mixing tank. In use, the flow regulating assembly 41 introduces hydrogen chloride gas and acetylene gas into the mixing tank in a specific ratio, and the stirring motor drives the stirring blades to rotate, so that the hydrogen chloride gas and acetylene gas are quickly mixed.

[0048] Specifically, such as Figure 4 , Figure 5 As shown, the reaction device 5 includes a reaction tube 51 and a first sealing element 52. One end of the reaction tube 51 has a first opening 511. A gas inlet pipe 512 and a gas outlet pipe 513 extend from the side wall of the reaction tube 51, allowing only gas flow. A gas reaction zone filled with catalyst and supplying gas for reaction is formed inside the reaction tube 51. The first sealing element 52 is detachably connected to the first opening 511 to seal the gas reaction zone. The catalyst is placed directly inside the reaction tube 51, with the first openings 511 at both ends. In use, gas enters the reaction tube 51 through the gas inlet pipe 512, directly contacting the catalyst to improve reaction efficiency. The reacted gas exits through the gas outlet pipe 513. When the catalyst needs to be replaced, simply disconnect the first sealing element 52 from the first opening 511, pour out the catalyst from the reaction tube 51, add new catalyst, and then reconnect and fix the first sealing element 52 to the first opening 511.

[0049] Specifically, the reaction tube 51 is cylindrical and arranged vertically, with the first opening 511 located at the lower end of the reaction tube 51.

[0050] Furthermore, the gas inlet pipe 512 is closer to the first opening 511 than the gas outlet pipe 513, while the gas outlet pipe 513 is farther away from the first opening 511 than the gas inlet pipe 512. This design allows the gas to enter the reaction tube 51 from below and exit from above. Gravity extends the residence time of the gas within the reaction tube 51, thereby increasing the contact time with the catalyst and improving the reaction efficiency.

[0051] Specifically, the first sealing member 52 includes a first insertion plug 521 and a first fixing member 522. The first insertion plug 521 can at least partially extend into the first opening 511 and be press-fitted into the interior of the reaction tube 51. The first fixing member 522 is fixed to the portion of the first insertion plug 521 located outside the reaction tube 51. The first fixing member 522 is detachably fixed to the reaction tube 51.

[0052] In this embodiment, the end of the reaction tube 51 with the first opening 511 extends to form a first flange 511a, and the first fixing member 522 is detachably connected to the first flange 511a by bolts. During a gas reaction, the first fixing member 522 and the first flange 511a are locked together by bolts, and the first insert plug 521 closes the first opening 511, thus confining the catalyst within the gas reaction area. When the catalyst needs to be replaced, the bolts between the first fixing member 522 and the first flange 511a are removed, the first insert plug 521 is pulled out of the first opening 511, and the catalyst is poured out of the first opening 511. A new catalyst is then placed into the first opening 511, the first insert plug 521 is inserted into the first opening 511, and the first fixing member 522 and the first flange 511a are fixed together by bolts. This completes the catalyst replacement.

[0053] Furthermore, the first seal 52 also includes a catalyst support 523, which is fixed to the portion of the first insertion plug 521 that extends into the first opening 511, and is used to support the catalyst within the reaction tube 51.

[0054] Furthermore, the catalyst support 523 includes a vertical rod 523a and a support tray 523b. The vertical rod 523a is vertically arranged, with one end fixed to the first insertion plug 521. The support tray 523b is fixed to the other end of the vertical rod 523a, and the outer diameter of the support tray 523b matches the inner diameter of the reaction tube 51.

[0055] Furthermore, such as Figure 2As shown, the tray 523b has a plurality of vent holes 523c. The diameter of the vent holes 523c is smaller than the diameter of the catalyst particles. The purpose of the vent holes 523c is to allow airflow to pass through.

[0056] Furthermore, the reaction device 5 also includes a second sealing element 53, and a second opening 514 is provided on the other end of the reaction tube 51. The second sealing element 53 is detachably connected to the second opening 514. The second sealing element 53 is provided with a temperature detection device 533 for detecting the reaction temperature inside the reaction tube 51.

[0057] Furthermore, the second sealing member 53 includes a second insertion plug 531 and a second fixing member 532. The second insertion plug 531 can at least partially extend into the second opening 514 and is press-fitted into the interior of the reaction tube 51. The second fixing member 532 is fixed to the portion of the second insertion plug 531 located outside the reaction tube 51. The second fixing member 532 is detachably fixed to the reaction tube 51. The temperature detection device 533 is fixed on the second insertion plug 531.

[0058] Correspondingly, in this embodiment, the end of the reaction tube 51 with the second opening 514 extends to form a second flange 514a, and the second fastener 532 is detachably connected to the second flange 514a by bolts.

[0059] Specifically, the reaction device 5 further includes a heating sleeve 54, which is sleeved on the outer periphery of the reaction tube 51. The heating sleeve 54 and the reaction tube 51 form a closed heating area for heating the reaction tube 51 so that the gas reacts.

[0060] Furthermore, the heating sleeve 54 is provided with a fluid inlet 541 and a fluid outlet 542, which are connected to the heating area. In use, the fluid inlet 541 and the fluid outlet 542 are connected to an external heating device, and a fluid heated by the external device is introduced into the heating area to heat the reaction tube 51 and the gas reaction area within the reaction tube 51.

[0061] Furthermore, the distance between the fluid inlet 541 and the first opening 511 is less than the distance between the fluid outlet 542 and the first opening 511. This arrangement ensures that the fluid flows in from the bottom of the heating sleeve 54 and out from the top, effectively extending the contact time between the fluid and the reaction tube 51 and guaranteeing the heating effect on the reaction tube 51 and the gas reaction zone within it.

[0062] The finished product testing device 6 includes a water washing tank and a gas chromatograph. The gas inlet of the water washing tank is connected to the gas outlet pipe 513, and the gas outlet of the water washing tank is connected to the gas chromatograph. The water washing tank washes the vinyl chloride gas generated in the reaction with water to remove impurities before guiding it to the gas chromatograph for detection.

[0063] The beneficial effects of this utility model are:

[0064] This invention includes a first gas supply device, a second gas supply device, a mixing device, a reaction device, and a finished product testing device. The first gas supply device provides a first gas. The second gas supply device provides a second gas. The mixing device includes two flow regulating components and a mixing component. The inlet ends of the two flow regulating components are respectively connected to the first gas supply device and the second gas supply device, and the outlet ends of the two flow regulating components are connected to the inlet end of the mixing component. The flow regulating components are used to adjust the supply ratio of the first gas and the second gas. The reaction device is connected to the outlet end of the mixing component to allow the first gas and the second gas to react. The finished product testing device is connected to the reaction device to test the reaction product. This invention utilizes the finished product testing device to detect the quality of the finished product. Users can adjust the flow regulating components and the supply ratio of the first gas and the second gas based on the test results of the finished product testing device to optimize the quality of the finished product.

[0065] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model.

Claims

1. A synthetic detection system, characterized by, include: A first gas supply device is used to supply a first gas; A second gas supply device is used to supply a second gas; A mixing device includes two flow regulating components and a mixing component. The inlet ends of the two flow regulating components are respectively connected to the first gas supply device and the second gas supply device, and the outlet ends of the two flow regulating components are connected to the inlet end of the mixing component. The flow regulating components are used to adjust the supply ratio of the first gas and the second gas. A reaction apparatus, connected to the outlet of the mixing assembly, allows the first gas to react with the second gas; and A finished product testing device is connected to the reaction device and is used to test the reaction product.

2. The synthesis detection system as described in claim 1, characterized in that, The flow regulating component includes a flow meter and a regulating valve. The inlet of the flow meter is connected to the first or second air supply device, the outlet of the flow meter is connected to the regulating valve, and the regulating valve is connected to the inlet of the mixing component.

3. The synthesis detection system of claim 1, wherein, It also includes a drying device, which comprises two primary drying modules and two secondary drying modules. The two primary drying modules are respectively connected to the first gas supply device and the second gas supply device, and are used to dry the first gas and the first and second gases, respectively. The two secondary drying modules are respectively connected to the two primary drying modules, and are used to detect and indicate whether the gas is dry.

4. The synthesis detection system of claim 3, wherein, The primary drying module includes several primary dryers, an air inlet pipe, and an air outlet pipe. The air inlet pipe is connected to the air inlet end of several primary dryers, and the air outlet pipe is connected to the air outlet end of several primary dryers.

5. The synthesis detection system of claim 4, wherein, The air intake pipeline includes a main air intake pipeline and a branch air intake pipeline. Each branch air intake pipeline is configured to correspond one-to-one with the first-stage dryer. One end of each branch air intake pipeline is connected to the air intake end of the first-stage dryer, and the other end is connected to the main air intake pipeline. Each branch air intake pipeline is equipped with an air intake valve to control the opening or closing of the branch air intake pipeline.

6. The synthesis detection system of claim 4, wherein, The air outlet pipeline includes a main air outlet pipeline and a branch air outlet pipeline. Each branch air outlet pipeline is configured to correspond one-to-one with the primary dryer. One end of each branch air outlet pipeline is connected to the air outlet end of the primary dryer, and the other end is connected to the main air outlet pipeline. Each branch air outlet pipeline is equipped with an air outlet valve to control the opening or closing of the branch air outlet pipeline.

7. The synthesis detection system of claim 1, wherein, The reaction device includes a reaction tube and a first sealing element. One end of the reaction tube is provided with a first opening. A gas inlet pipe and a gas outlet pipe, which are for gas flow only, extend from the side wall of the reaction tube. A gas reaction zone filled with catalyst and for gas to react is formed inside the reaction tube. The first sealing element is detachably connected to the first opening to seal the gas reaction zone.

8. The synthesis detection system of claim 7, wherein, The first sealing element includes a first insertion plug and a first fixing member. The first insertion plug is at least partially able to extend into the first opening and be press-fitted into the interior of the reaction tube. The first fixing member is fixed to the portion of the first insertion plug located outside the reaction tube and is detachably fixed to the reaction tube.

9. The synthesis detection system of claim 8, wherein, The first seal also includes a catalyst support, which is fixed to the portion of the first insert plug that extends into the first opening.

10. The synthesis detection system of claim 9, wherein, The finished product testing device includes a water washing tank and a gas chromatograph. The gas inlet of the water washing tank is connected to the reaction device, and the gas outlet of the water washing tank is connected to the gas chromatograph. The water washing tank washes the finished product gas generated by the reaction with water to remove impurities before guiding it to the gas chromatograph for detection.

Images