Sampling device for chemical-looping fluidized bed reactor

Abstract

The utility model discloses a sampling device for a chemical looping fluidized bed reactor, which comprises a flue gas sampling gun and a flue gas treatment module detachably connected with the flue gas sampling gun, and the flue gas sampling gun is arranged to extend into the reactor to obtain flue gas from the reactor. The flue gas treatment module is used for treating flue gas obtained by the flue gas sampling gun; wherein the flue gas treatment module comprises a bearing frame and a flue gas treatment unit, the bearing frame is movably arranged, the flue gas treatment unit is installed on the bearing frame and used for treating flue gas, the flue gas treatment unit is provided with a flue gas input pipe section and a flue gas output pipe section, and the flue gas input pipe section is detachably connected with the flue gas sampling gun. According to the scheme provided by the utility model, the flue gas treatment module can be detached from the flue gas sampling gun when sampling is not carried out, so that the occupied space is reduced, and the use is flexible.

Description

Technical Field

[0001] This utility model relates to the field of chemical technology, and more specifically, to a sampling device for a chemical chain fluidized bed reactor. Background Technology

[0002] In chemical looping technology, the fluidized bed reactor, as the core equipment, mainly functions as a redox cycle for the oxygen carrier. However, in order to investigate the redox state and gas composition changes of the oxygen carrier inside the fluidized bed reactor, it is necessary to sample the flue gas inside the reactor, and then treat the sampled flue gas through processes such as filtration and cooling before analysis.

[0003] Currently, the flue gas sampling gun that takes samples from the fluidized bed reactor is fixedly connected to the flue gas treatment components used to treat the flue gas (such as filtration and cooling), which not only takes up space but is also inconvenient to use. Utility Model Content

[0004] This utility model provides a sampling device for a chemical chain fluidized bed reactor to solve the problems of space occupation and inconvenience of use of current sampling devices.

[0005] An embodiment of this application provides a sampling device for a chemical chain fluidized bed reactor, including a flue gas sampling gun and a flue gas treatment module detachably connected to the flue gas sampling gun. The flue gas sampling gun is configured to extend into the reactor to obtain flue gas from the reactor, and the flue gas treatment module is configured to process the flue gas obtained by the flue gas sampling gun.

[0006] The flue gas treatment module includes: a movable support frame and a flue gas treatment unit installed on the support frame for treating flue gas. The flue gas treatment unit has a flue gas inlet pipe section and a flue gas outlet pipe section, and the flue gas inlet pipe section is configured to be detachably connected to the flue gas sampling gun.

[0007] In one embodiment, the sampling device further includes a vacuum pump, and the flue gas output pipe section is configured to be detachably connected to the vacuum pump.

[0008] In one embodiment, a flexible pipe section is provided between the flue gas inlet pipe section and the flue gas sampling gun, and the flue gas inlet pipe section and the flexible pipe section are detachably connected;

[0009] Alternatively, the flue gas inlet pipe section may include a flexible pipe section, which is detachably connected to the flue gas sampling gun.

[0010] In one embodiment, the support frame is provided with a handle, and / or, the bottom of the support frame is provided with rollers.

[0011] In one embodiment, the flue gas treatment unit includes a gas-solid separator and a gas cooler. The gas inlet of the gas-solid separator is connected to the flue gas input pipe section, and the gas outlet is connected to the gas cooler, so that the gas separated by the gas-solid separator enters the gas cooler for cooling and is then output from the flue gas output pipe section.

[0012] In one embodiment, the flue gas treatment unit further includes a filter on the connecting pipeline between the gas-solid separator and the gas condenser.

[0013] In one embodiment, a vent valve is provided on the flue gas output pipe section for venting the flue gas in the flue gas output pipe section.

[0014] In one embodiment, the flue gas sampling gun includes a sampling tube and a pipeline control valve, a blowing pipeline, and a blowing control valve disposed on the sampling tube. The pipeline control valve is configured to control the opening and closing of the sampling tube, the blowing pipeline is configured to introduce gas into the sampling tube, and the blowing control valve is configured to control the opening and closing of the blowing pipeline.

[0015] The sampling device is configured to have a solid sampling mode and a gas sampling mode. In the solid sampling mode, both the pipeline control valve and the gas blowing control valve are open, so that while the sampling tube obtains flue gas from the reactor, the gas blowing pipeline introduces inert gas into the sampling tube. In the gas sampling mode, the pipeline control valve is open and the gas blowing control valve is closed.

[0016] In one embodiment, at least two air blowing lines are provided at intervals along the length of the sampling tube, and each air blowing line is provided with an air blowing control valve.

[0017] In one embodiment, two air blowing lines are provided, and two line control valves are provided at intervals along the length of the sampling tube between the two air blowing lines.

[0018] In the technical solution provided by the embodiments of this application, the flue gas treatment module is configured to be detachably connected to the flue gas sampling gun, and the flue gas treatment module is configured to be moved by a movable support frame. In this way, the flue gas treatment module can be used flexibly. For example, when multiple flue gas sampling guns are set on the reactor at different positions, the flue gas treatment module can be moved to connect with the flue gas sampling guns at different positions to process the flue gas obtained by the flue gas sampling guns at different positions. Moreover, when not sampling flue gas, the flue gas treatment module can be detached from the flue gas sampling gun to reduce space occupation. When needed, the flue gas treatment module can be reconnected to the flue gas sampling gun, which is convenient and flexible to use.

[0019] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solution of this utility model and do not constitute a limitation on the technical solution of this utility model.

[0021] Figure 1 This is a schematic diagram of a sampling device for a chemical chain fluidized bed reactor according to one embodiment of this application;

[0022] Figure 2 This is a schematic diagram of the structure of a flue gas treatment module according to one embodiment of this application;

[0023] Figure 3 This is a schematic diagram of the structure of a flue gas sampling gun according to one embodiment of this application.

[0024] Explanation of reference numerals in the attached figures:

[0025] 10-Flue gas treatment module; 11-Support frame; 111-Square frame; 112-Base frame; 113-Handle; 114-Support base; 12-Gas-solid separator; 121-Cyclone separator; 122-Dust collection tank; 13-Gas cooler; 14-Filter; 15-Flue gas inlet pipe section; 16-Control valve; 17-Flue gas outlet pipe section; 18-Exhaust valve; 20-Flue gas sampling gun; 21-Sampling tube; 22-Unblocking pipe; 23-First pipe control valve; 24-Second pipe control valve; 25-Unblocking control valve; 26-First blowing pipe; 27-Second blowing pipe; 28-Sealing flange; 30-Flexible pipe. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

[0027] In the description of this utility model, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "'mouth' structure", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, or is constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Embodiments of this application provide a sampling device for a chemical chain fluidized bed reactor, such as... Figures 1-3 The device includes a flue gas sampling gun 20 and a flue gas treatment module 10 detachably connected to the flue gas sampling gun 20. The flue gas sampling gun 20 is configured to extend into the reactor to obtain flue gas from the reactor, and the flue gas treatment module 10 is configured to process the flue gas obtained by the flue gas sampling gun 20.

[0029] The flue gas treatment module 10 includes a movable support frame 11 and a flue gas treatment unit mounted on the support frame 11 for treating flue gas. The flue gas treatment unit has a flue gas inlet pipe section 15 and a flue gas outlet pipe section 17. The flue gas inlet pipe section 15 is detachably connected to the flue gas sampling gun 20. The flue gas treatment by the flue gas treatment unit can include at least one or more of gas-solid separation, flue gas filtration, and gas cooling. After treatment, the flue gas is discharged through the flue gas outlet pipe section 17 and can be collected in a collection bag, or directly transported to a detection and analysis instrument for detection and analysis, or subjected to gas-solid separation by the flue gas treatment unit to obtain a solid sample for detection and analysis. The solid samples obtained in the reactor using an oxygen carrier for oxidation-reduction mainly consist of oxygen carrier powder and dust.

[0030] In the technical solution provided by the embodiments of this application, the flue gas treatment module 10 is configured to be detachably connected to the flue gas sampling gun 20, and the flue gas treatment module 10 is configured to be moved by the movable support frame 11. In this way, the flue gas treatment module 10 can be used flexibly. For example, when multiple flue gas sampling guns 20 are set on the reactor at different positions, the flue gas treatment module 10 can be moved to connect with the flue gas sampling guns 20 at different positions to process the flue gas obtained by the flue gas sampling guns 20 at different positions. Moreover, when sampling is not performed, the flue gas treatment module 10 can be detached from the flue gas sampling gun 20 to reduce space occupation. When needed, the flue gas treatment module 10 can be connected to the flue gas sampling gun 20 where the flue gas to be obtained is to be obtained. It is convenient and flexible to use.

[0031] In one embodiment, to facilitate the movement of the flue gas treatment module 10, the support frame 11 is provided with a handle 113, which can be used to lift the flue gas treatment module 10 for movement. In another embodiment, rollers can also be provided at the bottom of the support frame 11, and the flue gas treatment module 10 can be moved by the rollers.

[0032] exist Figure 1 and Figure 2 In this example, the support frame 11 includes a square frame 111 and a base frame 112 disposed at the bottom of the square frame 111. The flue gas treatment unit in this example includes a gas-solid separator 12 and a gas cooler 13. The bottoms of the gas-solid separator 12 and the gas cooler 13 are both supported on the base frame 112 and fixed to the square frame 111 respectively. A handle 113 is provided at the top of the square frame 111, and multiple support seats 114 are provided at the bottom of the square frame 111 to support the support frame 11. It is understood that the structure of the support frame 11 can take various forms, and is not limited here.

[0033] In one embodiment, the sampling device further includes a vacuum pump (not shown), and the flue gas output pipe section 17 is detachably connected to the vacuum pump. When sampling using the sampling device, the flue gas input pipe section 15 of the flue gas treatment module 10 is connected to the flue gas sampling gun 20, and the flue gas output pipe section 17 is connected to the vacuum pump. This allows the vacuum pump to create a negative pressure within the flue gas sampling gun 20 and the flue gas treatment module 10, causing the flue gas to enter the flue gas sampling gun 20 and the flue gas treatment module 10 under negative pressure, and then exit from the vacuum pump. By detachably connecting the flue gas treatment module 10 to the vacuum pump, both the flue gas treatment module 10 and the vacuum pump can be used flexibly. Different flue gas treatment modules 10 can be used with different vacuum pumps and different flue gas sampling guns 20. The vacuum pump can be a variable frequency vacuum pump, and the gas flow rate can be controlled by changing the frequency of the vacuum pump.

[0034] It is understandable that the vacuum pump can also be mounted on the support frame 11. The vacuum pump can be part of the flue gas treatment module 10, so that it can be moved as a whole with the flue gas treatment module 10.

[0035] In one embodiment, such as Figure 1 As shown, a flexible pipe section 30 is provided between the flue gas inlet pipe section 15 and the flue gas sampling gun 20, and the flue gas inlet pipe section 15 and the flexible pipe section 30 are detachably connected; or, the flue gas inlet pipe section 15 includes the flexible pipe section 30, and the flexible pipe section 30 is detachably connected to the flue gas sampling gun 20.

[0036] Since the flue gas sampled by the flue gas sampling gun 20 is usually at a high temperature, the flexible pipe section 30 can be a high-temperature corrugated pipe or other types of high-temperature resistant flexible pipe.

[0037] In one embodiment, such as Figure 2 As shown, the flue gas treatment unit in the flue gas treatment module 10 includes a gas-solid separator 12 and a gas cooler 13. The gas inlet of the gas-solid separator 12 is connected to the flue gas input pipe section 15, and the gas outlet is connected to the gas cooler 13, so that the gas separated by the gas-solid separator 12 enters the gas cooler 13 for cooling. The cooled flue gas enters the vacuum pump through the gas output pipe section 17 and is output by the vacuum pump. The gas cooler 13 can be a spirally wound coil.

[0038] The gas-solid separator 12 may include a cyclone separator 121 and a dust collection tank 122 located at the bottom of the cyclone separator 121 for collecting the solids separated by the cyclone separator 121. High-temperature flue gas from the reactor enters the cyclone separator 121 through the flue gas inlet pipe section 15 for deashing treatment. The separated solid dust is collected by the dust collection tank 122, and the deashed gas enters the gas cooler 13. The gas-solid separator 12 may be other forms of gas-solid separation device, and the gas cooler 13 may be a spirally wound coil or other forms of cooler, such as a pipeline placed in cooling water.

[0039] The flue gas treatment unit may also include a filter 14 located on the connecting pipeline between the gas-solid separator 12 and the gas cooler 13. The gas after being deashed by the gas-solid separator enters the filter 14 for secondary filtration and deashing, and the flue gas after secondary deashing then enters the gas cooler 13 for cooling.

[0040] In one embodiment, a vent valve 18 is provided on the flue gas output pipe section 17, through which the flue gas in the flue gas output pipe section 17 can be vented.

[0041] In one embodiment, such as Figure 3 As shown, the flue gas sampling gun 20 includes a sampling tube 21 and a pipeline control valve, a blowing pipeline, and a blowing control valve disposed on the sampling tube 21. The pipeline control valve is configured to control the opening and closing of the sampling tube 21, the blowing pipeline is configured to communicate with the sampling tube 21 to introduce inert gas into the sampling tube 21, and the blowing control valve is configured to control the opening and closing of the blowing pipeline.

[0042] The sampling device is configured to have a solid sampling mode and a gas sampling mode. In the solid sampling mode, both the pipeline control valve and the gas blowing control valve are open, so that while the sampling tube 21 obtains flue gas from the reactor, the gas blowing pipeline blows inert gas into the sampling tube 21. In the gas sampling mode, the pipeline control valve is open and the gas blowing control valve is closed.

[0043] In the solid sampling mode, since only solids in the flue gas need to be sampled, to ensure the accuracy of the reactant detection, the solid sample (e.g., oxygen carrier) in the flue gas needs to be stopped from reacting during flue gas acquisition. Therefore, inert gas can be introduced into the blowing pipe to blow the inert gas into the flue gas sampled in the sampling tube 21, thereby stopping the chemical reaction of the solid sample in the flue gas. Then, the flue gas acquired by the sampling tube 21 is processed by the flue gas processing module 10, which can perform gas-solid separation on the flue gas, and the acquired solids are used as the detection sample.

[0044] In gas sampling mode, since a gas sample needs to be obtained, inert gas cannot be introduced into the sampling tube 21 through the blowing line, as this would dilute the gas in the sampled flue gas, making it impossible to obtain accurate gas detection data. Therefore, the blowing line needs to be closed during the sampling process.

[0045] In addition, when the sampling device is not in the sampling state, the dust in the pipeline can be blown out through the air blowing line to prevent the dust in the pipeline from clogging the pipeline.

[0046] In some embodiments, at least two air blowing lines are provided at intervals along the length of the sampling tube 21, and each air blowing line is provided with an air blowing control valve.

[0047] exist Figure 1 and Figure 3 In this example, two air blowing lines are provided at intervals along the length of the sampling tube 21, namely a first air blowing line 26 and a second air blowing line 27. In this example, the first air blowing line 26 is located upstream of the pipeline control valve, and the second air blowing line 27 is located downstream of the pipeline control valve.

[0048] Because a single blowing line is used, a large air volume is required to stop the reaction of the sampled solid. However, using a large air volume may cause the sampled flue gas to be back-blown into the reactor. Therefore, at least two blowing lines are set up, each of which can use a relatively small air volume to solve the problem of flue gas being back-blown. Furthermore, by increasing the number of blowing lines, even with a small air volume, the requirement to stop the reaction of the solid sample can still be met.

[0049] By placing the first purging line 26 upstream of the pipeline control valve and the second purging line 27 downstream of the pipeline control valve, the pipeline can be purged using the first purging line 26 before sampling. Specifically, the pipeline control valve is closed, and the first purging line 26 is opened, allowing inert gas to purge the pipeline upstream of the pipeline control valve, preventing dust blockage. After sampling, both purging lines can be opened to clean the entire internal passage of the flue gas sampling gun 20 and the pipeline control valve, preventing dust accumulation and avoiding dust jamming the pipeline control valve for future use.

[0050] exist Figure 1 and Figure 3 In the example, two pipeline control valves are spaced apart along the length of the sampling tube 21 between the two air blowing lines. These are the first pipeline control valve 23 and the second pipeline control valve 24. The two pipeline control valves and the two air blowing control valves can each be manual ball valves.

[0051] By setting two pipeline control valves, the problem of one pipeline control valve failing to close can be effectively solved. If the first pipeline control valve 23, which is close to the reactor, cannot close due to high temperature causing valve body jamming or other reasons, the second pipeline control valve 24 can be used to close the pipeline.

[0052] Figure 1 and Figure 3 In the example, the sampling tube 21 is also provided with a sealing flange 28 to seal the opening of the reactor when the sampling tube 21 extends into the reactor through the opening.

[0053] The sampling tube 21 can also be connected to a dredging pipe 22, which is equipped with a dredging control valve 25. Under normal conditions, the dredging pipe 22 is closed. When the sampling tube 21 is blocked, the dredging control valve 25 can be opened, and the dredging component can be inserted from the dredging pipe 22 to dredge the internal channel of the sampling tube 21.

[0054] The following is combined with Figures 1-3 The sampling process using a sampling device in one embodiment is described in detail.

[0055] Sampling was performed using a gas sampling mode:

[0056] Before sampling, the flue gas sampling gun 20 is inserted into the sampling point inside the reactor through the opening set on the reactor, and the opening of the reactor is sealed with a sealing flange 28; the flue gas inlet pipe section 15 of the flue gas treatment module 10 is connected to the flue gas sampling gun 20, and the flue gas outlet pipe section 17 is connected to the vacuum pump.

[0057] Before sampling, the first air blowing line 26 can be opened to introduce gas into the sampling tube 21 to purge the pipeline before the first pipeline control valve 23, so as to prevent dust and oxygen carrier powder inside the reactor from clogging the pipeline.

[0058] When taking samples, close the first air blowing line 26 (at the same time, the second air blowing line 27 is also closed), open the first line control valve 23 and the second line control valve 24, and check whether the connection between the pipeline and the connection between the cyclone separator 121 and the dust collection tank 122 is intact.

[0059] Turn on the vacuum pump and run it for a predetermined time (e.g., three minutes) to extract the flue gas from the flue gas treatment module 10. Then, open the control valve 16 on the flue gas inlet pipe section 15 of the flue gas treatment module 10. At this time, under the action of the vacuum pump, a negative pressure is formed in the flue gas sampling gun 20 and the flue gas treatment module 10, so that the flue gas in the reactor enters the sampling device under the action of the negative pressure.

[0060] The high-temperature flue gas sampled from inside the reactor by the flue gas sampling gun 20 is first de-ashed by a cyclone separator 121. The ash powder falls into the ash collection tank 122 due to the cyclone separation. The flue gas that has undergone primary de-ashing in the cyclone separator 121 enters the filter 14 from the top outlet for secondary filtration and de-ashing. The high-temperature flue gas after de-ashing enters the gas cooler 13 for cooling. The cooled flue gas enters the vacuum pump through the flue gas output pipe section 17, and then is discharged through the outlet of the vacuum pump. At this time, the operator can use a gas storage bag to monitor the exhaust gas discharged from the vacuum pump. The flue gas is collected and stored. After the gas sampling operation is completed, the vacuum pump is turned off, and the control valve 16 on the flue gas inlet pipe 15 is closed. Then, the blowing control valves of the first blowing pipe 26 and the second blowing pipe 27 are opened to backflush the channel inside the flue gas sampling gun 20. The backflush gas is usually an inert gas such as carbon dioxide or nitrogen. The backflush operation lasts for about three minutes. After the backflush is completed, the first pipe control valve 23 and the second pipe control valve 24 are closed, and the blowing control valves of the first blowing pipe 26 and the second blowing pipe 27 are closed. Then, the ash collected in the ash collection tank 122 is emptied, and the cyclone separator 121 is resealed. At this point, the sampling device has completed the gas sampling operation.

[0061] Sampling was performed using a solid sampling method:

[0062] Before sampling, the flue gas sampling gun 20 is inserted into the sampling point inside the reactor through the opening set on the reactor, and the opening of the reactor is sealed with a sealing flange 28; the flue gas inlet pipe section 15 of the flue gas treatment module 10 is connected to the flue gas sampling gun 20, and the flue gas outlet pipe section 17 is connected to the vacuum pump.

[0063] Before sampling, the first air blowing line 26 can be opened to introduce gas into the sampling tube 21 to purge the pipeline before the first pipeline control valve 23, so as to prevent dust and oxygen carrier powder inside the reactor from clogging the pipeline.

[0064] When the sampling work begins, the first air blowing line 26 is kept open, and the second air blowing line 27 is opened, as well as the first line control valve 23 and the second line control valve 24, to check whether the connection between the pipeline and the connection between the cyclone separator 121 and the dust collection tank 122 is intact.

[0065] Turn on the vacuum pump and run it for a predetermined time (e.g., three minutes) to extract the flue gas from the flue gas treatment module 10. Then, open the control valve 16 on the flue gas inlet pipe section 15 of the flue gas treatment module 10. At this time, under the action of the vacuum pump, a negative pressure is formed in the flue gas sampling gun 20 and the flue gas treatment module 10, so that the flue gas in the reactor enters the sampling device under the action of the negative pressure.

[0066] Since both the first blowing line 26 and the second blowing line 27 are open, the inert gas introduced into the sampling tube 21 from the first blowing line 26 and the second blowing line 27 will prevent the solid sample in the sampled flue gas from undergoing a chemical reaction. The inert gas introduced into the first blowing line 26 and the second blowing line 27 can be, for example, carbon dioxide, nitrogen, etc.

[0067] The high-temperature gas-solid mixture sample exiting the reactor and the inert gas introduced through the first blowing pipe 26 and the second blowing pipe 27 are first separated into solid and gas by a cyclone separator 121. The solid sample falls into the dust collection tank 122 due to the cyclone separation. The flue gas that has undergone primary ash removal in the cyclone separator 121 enters the filter 14 from the top outlet for secondary filtration and ash removal. The high-temperature flue gas after ash removal enters the gas cooler 13 for cooling. The cooled flue gas enters the vacuum pump through the flue gas output pipe section 17, and then passes through the vacuum pump outlet. Since no gas sample is needed, the operator can directly vent the flue gas output from the vacuum pump. After the vacuum pump has been running for about three minutes, turn it off and close the control valve 16 on the flue gas inlet pipe 15. Keep the first blowing pipe 26 and the second blowing pipe 27 open to backflush the channel inside the flue gas sampling gun 20. The backflushing process lasts for about three minutes. After the backflushing is completed, close the first pipe control valve 23 and the second pipe control valve 24, as well as the first blowing pipe 26 and the second blowing pipe 27. After the solid sample in the dust collection tank 122 has cooled to a suitable temperature, pour the solid sample from the dust collection tank 122 into the predetermined solid collection component. Then, clean the dust collection tank 122 and reseal it with the cyclone separator 121. At this point, the gas-solid combined sampling device has completed the solid sampling operation and returned to the initial state before the device was used.

[0068] When sampling is not required, the flue gas treatment module 10 and the flue gas sampling gun 20 can be disassembled. The flue gas sampling gun 20 can be left on the reactor or removed from the reactor.

[0069] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "connection," "direct connection," "indirect connection," "fixed connection," "installation," and "assembly" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. The terms "installation," "connection," and "fixed connection" can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal communication between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0070] Although the embodiments disclosed in this utility model are as described above, the content described is only for the purpose of facilitating understanding of this utility model and is not intended to limit this utility model. Any person skilled in the art to which this utility model pertains may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in this utility model, but the patent protection scope of this utility model shall still be defined by the appended claims.

Claims

1. A sampling device for a chemical chain fluidized bed reactor, characterized in that, The device includes a flue gas sampling gun and a flue gas treatment module detachably connected to the flue gas sampling gun. The flue gas sampling gun is configured to extend into the reactor to obtain flue gas from the reactor, and the flue gas treatment module is configured to process the flue gas obtained by the flue gas sampling gun. The flue gas treatment module includes: a movable support frame and a flue gas treatment unit installed on the support frame for treating flue gas. The flue gas treatment unit has a flue gas inlet pipe section and a flue gas outlet pipe section, and the flue gas inlet pipe section is configured to be detachably connected to the flue gas sampling gun.

2. The sampling device according to claim 1, characterized in that, It also includes a vacuum pump, and the flue gas output pipe section is configured to be detachably connected to the vacuum pump.

3. The sampling device according to claim 1, characterized in that, A flexible pipe section is provided between the flue gas inlet pipe section and the flue gas sampling gun, and the flue gas inlet pipe section and the flexible pipe section are detachably connected; Alternatively, the flue gas inlet pipe section may include a flexible pipe section, which is detachably connected to the flue gas sampling gun.

4. The sampling device according to claim 1, characterized in that, The support frame is provided with a handle, and / or the bottom of the support frame is provided with rollers.

5. The sampling device according to claim 1, characterized in that, The flue gas treatment unit includes a gas-solid separator and a gas cooler. The gas inlet of the gas-solid separator is connected to the flue gas input pipe section, and the gas outlet is connected to the gas cooler, so that the gas separated by the gas-solid separator enters the gas cooler for cooling and is then output from the flue gas output pipe section.

6. The sampling device according to claim 5, characterized in that, The flue gas treatment unit also includes a filter on the connecting pipeline between the gas-solid separator and the gas condenser.

7. The sampling device according to claim 1, characterized in that, An exhaust valve is installed on the flue gas output pipe section to exhaust the flue gas inside the flue gas output pipe section.

8. The sampling device according to any one of claims 1-7, characterized in that, The flue gas sampling gun includes a sampling tube and a pipeline control valve, a blowing pipeline, and a blowing control valve disposed on the sampling tube. The pipeline control valve is configured to control the opening and closing of the sampling tube, the blowing pipeline is configured to introduce gas into the sampling tube, and the blowing control valve is configured to control the opening and closing of the blowing pipeline. The sampling device is configured to have a solid sampling mode and a gas sampling mode. In the solid sampling mode, both the pipeline control valve and the gas blowing control valve are open, so that while the sampling tube obtains flue gas from the reactor, the gas blowing pipeline introduces inert gas into the sampling tube. In the gas sampling mode, the pipeline control valve is open and the gas blowing control valve is closed.

9. The sampling device according to claim 8, characterized in that, At least two air blowing lines are provided at intervals along the length of the sampling tube, and each air blowing line is provided with an air blowing control valve.

10. The sampling device according to claim 9, characterized in that, Two air blowing lines are provided, and two line control valves are provided at intervals between the two air blowing lines along the length of the sampling tube.

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