Monitoring method and device for adsorption tower

Abstract

The invention discloses a monitoring method and device for an adsorption tower, and the method comprises the steps: obtaining the outlet temperature of at least one adsorption module; obtaining the gas content of various different gases in the outlet flue gas of at least one adsorption module; and monitoring the adsorption tower in real time based on the outlet temperature of the at least one adsorption module and the gas contents of the various different gases. Therefore, based on the outlet temperature of the adsorption module and the gas content of various different gases in the outlet flue gas, an alarm is given out in time or the adsorption module is controlled and adjusted in the early stage of overtemperature of the adsorption tower, so that the phenomenon of overtemperature or ignition of the adsorption tower is avoided.

Description

Technical Field

[0001] The invention relates to the field of monitoring technology, and in particular to a monitoring method and device for an adsorption tower. Background Art

[0002] At present, carbon-based adsorbents are widely used in the desulfurization and denitrification industries. However, exothermic reactions will occur during the pollutant removal process, causing the adsorption bed temperature to rise and even fire. The above phenomenon often occurs in the activated carbon / activated coke desulfurization and denitrification industries, which poses a great safety hazard and often causes considerable economic losses. Based on this, how to monitor the adsorption tower to effectively prevent the adsorption tower from overheating or catching fire is an urgent problem to be solved. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, the present invention proposes a monitoring method for an adsorption tower, which can issue an alarm in time or control and adjust the adsorption module before the adsorption tower overheats based on the outlet temperature of the adsorption module and the gas content of various different gases in the outlet flue gas, so as to avoid overheating or fire in the adsorption tower.

[0005] Another object of the present invention is to provide a monitoring device for an adsorption tower.

[0006] To achieve the above object, the present invention provides a monitoring method for an adsorption tower, the method comprising:

[0007] obtaining an outlet temperature of at least one adsorption module;

[0008] Obtaining gas contents of a plurality of different gases in the outlet flue gas of at least one adsorption module;

[0009] The adsorption tower is monitored in real time based on the outlet temperature of the at least one adsorption module and the gas contents of the multiple different gases.

[0010] The monitoring method for an adsorption tower according to an embodiment of the present invention may also have the following additional technical features:

[0011] In one embodiment of the present invention, the plurality of different gases include: sulfur dioxide, nitrogen monoxide, carbon monoxide, carbon dioxide and oxygen.

[0012] In one embodiment of the present invention, the real-time monitoring of the adsorption tower based on the outlet temperature of the at least one adsorption module and the gas content of the multiple different gases includes:

[0013] Based on the outlet temperature of the at least one adsorption module, determining a type of temperature condition satisfied by the outlet temperature;

[0014] determining, based on gas contents of the plurality of different gases of the at least one adsorption module, gas condition types satisfied by the gas contents of the plurality of different gases;

[0015] Based on the temperature condition type and / or gas condition type satisfied by each adsorption module, the protection operation and / or alarm operation that needs to be performed by each adsorption module is determined.

[0016] In one embodiment of the present invention, determining the type of temperature condition satisfied by the outlet temperature based on the outlet temperature of the at least one adsorption module includes:

[0017] If the outlet temperature of the adsorption module is greater than a first threshold, determining that the outlet temperature satisfies a first temperature condition type;

[0018] If the outlet temperature of the adsorption module at the current moment is less than the outlet temperature at the previous moment, it is determined that the outlet temperature meets the second temperature condition type;

[0019] If the outlet temperature of the adsorption module is greater than a third threshold value and lasts for a first preset time, it is determined that the outlet temperature meets the third temperature condition type.

[0020] In one embodiment of the present invention, the determining, based on the gas contents of the multiple different gases of the at least one adsorption module, the types of gas conditions satisfied by the gas contents of the multiple different gases includes:

[0021] If the gas content of any one of the multiple different gases in the adsorption module is greater than the corresponding fourth threshold, it is determined that the gas content meets the first gas condition type;

[0022] If the gas content of any one of the multiple different gases in the adsorption module is greater than or equal to the corresponding fifth threshold, it is determined that the gas content meets the second gas condition type.

[0023] In one embodiment of the present invention, the determining of the protection operation and / or alarm operation to be performed by each adsorption module based on the temperature condition type and / or gas condition type satisfied by each adsorption module includes:

[0024] If the temperature condition type satisfied by the adsorption module is the first temperature condition type, determining to perform the first protection operation of the adsorption module;

[0025] If the temperature condition type satisfied by the adsorption module is the second temperature condition type, determining to perform the second protection operation of the adsorption module;

[0026] If the temperature condition type satisfied by the adsorption module is the third temperature condition type, determining to perform the third protection operation of the adsorption module;

[0027] If the gas condition type satisfied by the adsorption module is the first gas condition type, determining to execute the first alarm operation of the adsorption module;

[0028] If the gas condition type satisfied by the adsorption module is the second gas condition type, it is determined to execute the second alarm operation of the adsorption module.

[0029] To achieve the above object, the present invention provides a monitoring device for an adsorption tower, the device comprising:

[0030] A first acquisition module, used to acquire the outlet temperature of at least one adsorption module;

[0031] A second acquisition module, used to acquire gas contents of a plurality of different gases in the outlet flue gas of at least one adsorption module;

[0032] A monitoring module is used to monitor the adsorption tower in real time based on the outlet temperature of the at least one adsorption module and the gas content of the multiple different gases.

[0033] Another object of the present invention is to provide an electronic device, comprising:

[0034] at least one processor; and

[0035] a memory communicatively connected to the at least one processor; wherein,

[0036] The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform any one of the methods described in the above aspect.

[0037] Another object of the present invention is to provide a computer storage medium, wherein the computer storage medium stores computer executable instructions; after the computer executable instructions are executed by a processor, the computer executes any one of the methods described in the above aspect.

[0038] The monitoring method and device for the adsorption tower of the embodiment of the present invention can issue an alarm or control and adjust the adsorption module in time before the adsorption tower overheats based on the outlet temperature of the adsorption module and the gas content of various different gases in the outlet flue gas, so as to avoid overheating or fire in the adsorption tower.

[0039] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0041] Figure 1 is a flow chart of a monitoring method for an adsorption tower according to an embodiment of the present invention;

[0042] Figure 2 is a structural diagram of a monitoring device for an adsorption tower according to an embodiment of the present invention. DETAILED DESCRIPTION

[0043] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0044] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0045] The following describes a monitoring method and device for an adsorption tower according to an embodiment of the present invention with reference to the accompanying drawings.

[0046] Figure 1 It is a flow chart of a monitoring method for an adsorption tower according to an embodiment of the present invention.

[0047] like Figure 1 As shown, the method includes:

[0048] S1, obtaining the outlet temperature of at least one adsorption module;

[0049] In one embodiment of the present invention, the adsorption tower may include at least one adsorption module. For example, the adsorption tower may include 16 adsorption modules.

[0050] In one embodiment of the present invention, the outlet temperature of each adsorption module can be obtained by installing a remote thermometer at the inlet and outlet of each adsorption module.

[0051] S2, obtaining gas contents of a plurality of different gases in the outlet flue gas of at least one adsorption module;

[0052] In one embodiment of the present invention, the multiple different gases in the above-mentioned outlet flue gas may include: sulfur dioxide, nitrogen monoxide, carbon monoxide, carbon dioxide and oxygen.

[0053] In one embodiment of the present invention, the gas contents of a plurality of different gases in the outlet flue gas of at least one adsorption module may be periodically acquired, for example, at an interval of 16 minutes.

[0054] S3, based on the outlet temperature of at least one adsorption module and the gas content of a plurality of different gases, the adsorption tower is monitored in real time.

[0055] In one embodiment of the present invention, after obtaining the outlet temperature of each adsorption module and the gas content of multiple different gases through the above steps, the adsorption tower can be monitored in real time based on the outlet temperature of at least one adsorption module and the gas content of multiple different gases.

[0056] In one embodiment of the present invention, the method for real-time monitoring of the adsorption tower based on the outlet temperature of at least one adsorption module and the gas content of a plurality of different gases may include the following steps:

[0057] S31, determining a temperature condition type satisfied by the outlet temperature based on the outlet temperature of at least one adsorption module;

[0058] S32, determining the gas condition types satisfied by the gas contents of the multiple different gases based on the gas contents of the multiple different gases in at least one adsorption module;

[0059] S33: Determine a protection operation and / or an alarm operation to be performed based on the satisfied temperature condition type and / or gas condition type.

[0060] In one embodiment of the present invention, the method for determining the type of temperature condition satisfied by the outlet temperature based on the outlet temperature of at least one adsorption module may include the following steps:

[0061] S311, if the outlet temperature of the adsorption module is greater than the first threshold, determining that the outlet temperature satisfies the first temperature condition type;

[0062] S312, if the outlet temperature of the adsorption module at the current moment is less than the outlet temperature at the previous moment, determining that the outlet temperature satisfies the second temperature condition type;

[0063] S313: If the outlet temperature of the adsorption module is greater than a third threshold value and lasts for a first preset time, it is determined that the outlet temperature satisfies a third temperature condition type.

[0064] In one embodiment of the present invention, the first threshold, the second threshold and the third threshold can be set according to needs or experience, and the first threshold, the second threshold and the third threshold are different. The first threshold can be 30°C, the second threshold can be 20°C, and the third threshold can be 50°C.

[0065] And, in one embodiment of the present invention, if the outlet temperature of the adsorption module at the current moment is less than the outlet temperature at the previous moment, that is, the temperature curve of the adsorption module begins to decrease, it is determined that the outlet temperature meets the second temperature condition type.

[0066] Further, in one embodiment of the present invention, if the outlet temperature of the adsorption module is greater than the third threshold value and lasts for a first preset time, it is determined that the outlet temperature meets the third temperature condition type. The first preset time can be set as needed, for example, 5 minutes.

[0067] Among them, in one embodiment of the present invention, based on the process and theory of the adsorption tower, when the bed temperature rises, the adsorption capacity of the activated carbon decreases. At the same time, the local temperature is too high, and part of the activated carbon will undergo pollutant decomposition. The decomposed pollutants float out with the flue gas, which is reflected as an increase in the pollutant concentration in a certain adsorption module.

[0068] Furthermore, in one embodiment of the present invention, the method for determining the gas condition types satisfied by the gas contents of multiple different gases based on the gas contents of multiple different gases in at least one adsorption module may include the following steps:

[0069] S321, if any gas of the multiple different gases in the adsorption module is greater than the corresponding fourth threshold, it is determined that the gas content meets the first gas condition type;

[0070] S322: If any gas among the multiple different gases in the adsorption module is greater than or equal to the corresponding fifth threshold, it is determined that the gas content meets the second gas condition type.

[0071] In one embodiment of the present invention, the fourth threshold and the fifth threshold corresponding to different gases are different.

[0072] Specifically, in one embodiment of the present invention, the fourth threshold value corresponding to the above-mentioned SO2 may be 5ppm of SO2 content, and the fifth threshold value may be 10ppm of SO2 content; the fourth threshold value corresponding to the above-mentioned NO may be 5ppm of NO content, and the fifth threshold value may be 10ppm of NO content; the fourth threshold value corresponding to the above-mentioned CO may be 250ppm of CO content, and the fifth threshold value may be 400ppm of CO content; the fourth threshold value corresponding to the above-mentioned CO2 may be 12%, and the fifth threshold value may be 11.5%; the fourth threshold value corresponding to the above-mentioned O2 may be 0.6 percentage points of the difference between the detection value and the inlet oxygen value, and the fifth threshold value may be 1 percentage point.

[0073] In one embodiment of the present invention, when the SO2 content is between the fourth threshold and the fifth threshold, the module can be manually discharged to reduce the amount of material discharged from other modules and speed up the replacement of the adsorbent in the module.

[0074] Further, in one embodiment of the present invention, after obtaining the temperature condition type and / or gas condition type satisfied by each adsorption module through the above steps, the protection operation and / or alarm operation to be performed can be determined. Specifically, in one embodiment of the present invention, based on the temperature condition type and / or gas condition type satisfied by each adsorption module, the method for determining the protection operation and / or alarm operation to be performed by each adsorption module may include the following steps:

[0075] S331, if the temperature condition type satisfied by the adsorption module is the first temperature condition type, determine to perform a first protection operation of the adsorption module;

[0076] S332, if the temperature condition type satisfied by the adsorption module is the second temperature condition type, determine to perform a second protection operation of the adsorption module;

[0077] S333: If the temperature condition type satisfied by the adsorption module is the third temperature condition type, determine to perform a third protection operation of the adsorption module;

[0078] S334, if the gas condition type satisfied by the adsorption module is the first gas condition type, determine to execute a first alarm operation of the adsorption module;

[0079] S335: If the gas condition type satisfied by the adsorption module is the second gas condition type, determine to execute a second alarm operation of the adsorption module.

[0080] Among them, in one embodiment of the present invention, if the temperature condition type satisfied by the adsorption module is the first temperature condition type, determining to execute the first protection operation of the adsorption module may be to increase the circulation volume of the adsorption module to observe the change trend; if the temperature condition type satisfied by the adsorption module is the second temperature condition type, determining to execute the second protection operation of the adsorption module may be to maintain the circulation volume of the adsorption module until it drops to a normal temperature, wherein the normal temperature can be set as needed, for example, 20°C; if the temperature condition type satisfied by the adsorption module is the third temperature condition type, determining to execute the third protection operation of the adsorption module may be to isolate the adsorption module.

[0081] Furthermore, in one embodiment of the present invention, if the gas condition type satisfied by the adsorption module is the first gas condition type, it is determined that the first alarm operation for executing the adsorption module may be to display a yellow alarm, speed up the unloading rake frequency of the corresponding chain of the adsorption module, and increase the circulation volume of the adsorption module until the alarm disappears and normal circulation is restored; if the gas condition type satisfied by the adsorption module is the second gas condition type, it is determined that the second alarm operation for executing the adsorption module may be a red alarm, indicating that there may be a fire point inside, a large amount of SO2 and / or NO is resolved, or local combustion of activated carbon produces a large amount of CO2. At this time, the on-duty personnel need to pay special attention and enter the adsorption tower over-temperature management method for the corresponding adsorption module. If the red alarm has not disappeared after the second preset time, the inlet and outlet valves of the adsorption module are closed and the operation is exited.

[0082] According to the monitoring method for an adsorption tower of an embodiment of the present invention, based on the outlet temperature of the adsorption module and the gas content of various gases in the outlet flue gas, a warning can be issued in time or the adsorption module can be controlled and adjusted before the adsorption tower overheats, so as to avoid overheating or fire in the adsorption tower.

[0083] In order to implement the above embodiment, Figure 2 As shown, this embodiment also provides a monitoring device 10 for an adsorption tower, the device comprising a first acquisition module 201, a second acquisition module 202 and a monitoring module 203;

[0084] A first acquisition module 201, used to acquire the outlet temperature of at least one adsorption module;

[0085] A second acquisition module 202 is used to acquire the gas content of multiple different gases in the outlet flue gas of at least one adsorption module;

[0086] The monitoring module 203 is used to monitor the adsorption tower in real time based on the outlet temperature of at least one adsorption module and the gas content of a plurality of different gases.

[0087] In one embodiment of the present invention, the plurality of different gases include: sulfur dioxide, nitrogen monoxide, carbon monoxide, carbon dioxide and oxygen.

[0088] Furthermore, the monitoring module 203 is specifically used for:

[0089] Based on the outlet temperature of at least one adsorption module, determining a type of temperature condition satisfied by the outlet temperature;

[0090] determining, based on gas contents of the plurality of different gases of at least one adsorption module, gas condition types satisfied by the gas contents of the plurality of different gases;

[0091] Based on the temperature condition type and / or gas condition type satisfied by each adsorption module, the protection operation and / or alarm operation that needs to be performed by each adsorption module is determined.

[0092] Furthermore, the monitoring module 203 is also used for:

[0093] If the outlet temperature of the adsorption module is greater than the first threshold, it is determined that the outlet temperature satisfies the first temperature condition type;

[0094] If the outlet temperature of the adsorption module at the current moment is less than the outlet temperature at the previous moment, it is determined that the outlet temperature satisfies the second temperature condition type;

[0095] If the outlet temperature of the adsorption module is greater than the third threshold value and lasts for the first preset time, it is determined that the outlet temperature meets the third temperature condition type.

[0096] Furthermore, the monitoring module 203 is also used for:

[0097] If the gas content of any of the multiple different gases in the adsorption module is greater than the corresponding fourth threshold, it is determined that the gas content meets the first gas condition type;

[0098] If the gas content of any one of the multiple different gases in the adsorption module is greater than or equal to the corresponding fifth threshold, it is determined that the gas content meets the second gas condition type.

[0099] Furthermore, the monitoring module 203 is also used for:

[0100] If the temperature condition type satisfied by the adsorption module is the first temperature condition type, determining to perform the first protection operation of the adsorption module;

[0101] If the temperature condition type satisfied by the adsorption module is the second temperature condition type, determining to perform the second protection operation of the adsorption module;

[0102] If the temperature condition type satisfied by the adsorption module is the third temperature condition type, determining to perform the third protection operation of the adsorption module;

[0103] If the gas condition type satisfied by the adsorption module is the first gas condition type, determining to execute the first alarm operation of the adsorption module;

[0104] If the gas condition type satisfied by the adsorption module is the second gas condition type, it is determined to execute the second alarm operation of the adsorption module.

[0105] According to the monitoring device for an adsorption tower according to an embodiment of the present invention, the device can issue an alarm in time or control and adjust the adsorption module before the adsorption tower overheats based on the outlet temperature of the adsorption module and the gas content of various different gases in the outlet flue gas, so as to avoid overheating or fire in the adsorption tower.

[0106] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0107] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

Claims

1. A monitoring method for an adsorption tower, characterized in that: The method comprises: obtaining an outlet temperature of at least one adsorption module; Obtaining gas contents of a plurality of different gases in the outlet flue gas of at least one adsorption module; The adsorption tower is monitored in real time based on the outlet temperature of the at least one adsorption module and the gas contents of the multiple different gases.

2. The method according to claim 1, characterized in that The plurality of different gases include: sulfur dioxide, nitrogen monoxide, carbon monoxide, carbon dioxide and oxygen.

3. The method according to claim 1, characterized in that The real-time monitoring of the adsorption tower based on the outlet temperature of the at least one adsorption module and the gas content of the multiple different gases includes: Based on the outlet temperature of the at least one adsorption module, determining a type of temperature condition satisfied by the outlet temperature; determining, based on gas contents of the plurality of different gases of the at least one adsorption module, gas condition types satisfied by the gas contents of the plurality of different gases; Based on the temperature condition type and / or gas condition type satisfied by each adsorption module, the protection operation and / or alarm operation that needs to be performed by each adsorption module is determined.

4. The method according to claim 3, characterized in that The determining, based on the outlet temperature of the at least one adsorption module, the type of temperature condition satisfied by the outlet temperature comprises: If the outlet temperature of the adsorption module is greater than a first threshold, determining that the outlet temperature satisfies a first temperature condition type; If the outlet temperature of the adsorption module at the current moment is less than the outlet temperature at the previous moment, it is determined that the outlet temperature meets the second temperature condition type; If the outlet temperature of the adsorption module is greater than a third threshold value and lasts for a first preset time, it is determined that the outlet temperature meets the third temperature condition type.

5. The method according to claim 3, characterized in that: The determining, based on the gas contents of the multiple different gases of the at least one adsorption module, the types of gas conditions satisfied by the gas contents of the multiple different gases comprises: If the gas content of any one of the multiple different gases in the adsorption module is greater than the corresponding fourth threshold, it is determined that the gas content meets the first gas condition type; If the gas content of any one of the multiple different gases in the adsorption module is greater than or equal to the corresponding fifth threshold, it is determined that the gas content meets the second gas condition type.

6. The method according to claim 3, characterized in that The determining of the protection operation and / or alarm operation to be performed by each adsorption module based on the temperature condition type and / or gas condition type satisfied by each adsorption module includes: If the temperature condition type satisfied by the adsorption module is the first temperature condition type, determining to perform the first protection operation of the adsorption module; If the temperature condition type satisfied by the adsorption module is the second temperature condition type, determining to perform the second protection operation of the adsorption module; If the temperature condition type satisfied by the adsorption module is the third temperature condition type, determining to perform the third protection operation of the adsorption module; If the gas condition type satisfied by the adsorption module is the first gas condition type, determining to execute the first alarm operation of the adsorption module; If the gas condition type satisfied by the adsorption module is the second gas condition type, it is determined to execute the second alarm operation of the adsorption module.

7. A monitoring device for an adsorption tower, characterized in that: The device comprises: A first acquisition module, used to acquire the outlet temperature of at least one adsorption module; A second acquisition module, used to acquire gas contents of a plurality of different gases in the outlet flue gas of at least one adsorption module; A monitoring module is used to monitor the adsorption tower in real time based on the outlet temperature of the at least one adsorption module and the gas content of the multiple different gases.

8. The device according to claim 7, characterized in that The plurality of different gases include: sulfur dioxide, nitrogen monoxide, carbon monoxide, carbon dioxide and oxygen.

9. An electronic device comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 6.

10. A computer storage medium, wherein: The computer storage medium stores computer executable instructions; after the computer executable instructions are executed by the processor, the method according to any one of claims 1 to 6 can be implemented.

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