Gasification furnace abnormity emergency method and device, electronic equipment and storage medium

Abstract

The invention discloses a gasifier abnormity emergency method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring system gas flow information after an abnormal bumping working condition of a gasifier occurs, and calculating an effective gas gap and a hydrogen gap of an unconverted system according to the system gas flow information; according to the effective gas gap of the non-transformed system, calculating the effective gas transformation amount transferred from the transformation system to the non-transformed system; according to the hydrogen gap, the hydrogen user degas amount is calculated; and emergency operation guidance is given according to the effective gas change amount and the degas amount of the hydrogen user. According to the method, the effective gas gap and the hydrogen gap of the unconverted system of the gasifier are analyzed and calculated, the effective gas change amount is obtained according to the effective gas gap of the unconverted system, then the hydrogen user degas amount is calculated through the degas priority, and finally emergency operation guidance is given according to the effective gas change amount and the hydrogen user degas amount. Therefore, the corresponding emergency time and the emergency operation amount of the gasifier are reduced, and the accuracy of emergency operation is improved.

Description

Technical Field

[0001] The present invention relates to the technical field related to chemical automatic control, and in particular to a method, a device, an electronic device and a storage medium for emergency response to abnormality of a gasifier. Background Art

[0002] The gasification device is the source device of the relevant industrial chain. The core of the gasification device is the gasifier. The stable operation and abnormal handling of the gasifier will have a huge impact on downstream users. The water-coal slurry of the gasification device is gasified into carbon monoxide, carbon dioxide and hydrogen by the gasifier. The effective gas is passed through the change unit, low-temperature methanol washing unit, cold box and pressure swing adsorption (PSA) to obtain pure carbon monoxide and hydrogen. The downstream device produces by drawing gas from the pipeline network as raw material. The gasification device is the source device of the entire industrial chain. Its operating stability affects the stability of the hydrogen pipeline network and carbon monoxide pipeline network of the entire chemical park. In recent years, the deterioration of coal quality has posed a serious threat to the stable operation of the gasifier. The gasification device has experienced abnormal tripping of the gasifier many times. Limited by the operating level of the internal operator, the impact of each abnormal handling on the pipeline network is different. Standardized operation navigation is more conducive to keeping the pipeline network as stable as possible when the gasifier trips abnormally.

[0003] In chemical production, the gasifier is used as one for one or two for one. When one gasifier abnormally trips, the overall gas production will be greatly reduced. The gasification process will first increase the load of the other gasifiers that are operating normally, but it takes a long time for the gasifier to increase the load. At the same time, the purification process will adjust the production of H2 and CO through the conversion and non-conversion units, generally reducing the H2 production and increasing the CO production to maintain the stability of the CO pipeline network. The alcohol-ammonia process reduces the load of methanol synthesis and ammonia synthesis to reduce the H2 consumption to balance the H50 pipeline network (i.e., the hydrogen pipeline network with a pressure of 5 MPa). Any error in any link will cause a large fluctuation or even a short shutdown of the subsequent device.

[0004] The abnormal trip response of the gasifier is characterized by tight time, large amount of operation and no operation target endpoint, which usually leads to slow emergency response speed and low operation accuracy. It is impossible to distribute the remaining gas volume in a short time by relying solely on the experience of the operator, so that the fluctuation of the CO pipeline network and H50 pipeline network is reduced and stabilized quickly. Summary of the invention

[0005] Based on this, it is necessary to provide a gasifier abnormal emergency method, device, electronic equipment and storage medium to address the technical problems of the prior art.

[0006] The present invention provides a gasifier abnormal emergency method, comprising:

[0007] After an abnormal tripping condition occurs in the gasifier, the system gas volume information is obtained, and the effective gas gap and hydrogen gap of the unconverted system are calculated according to the system gas volume information;

[0008] Calculate the effective gas volume transferred from the conversion system to the unconverted system according to the effective gas gap of the unconverted system;

[0009] According to the hydrogen gap, the amount of hydrogen users withdrawing gas is calculated;

[0010] Emergency operation guidance is given according to the effective gas conversion volume and the hydrogen user gas withdrawal volume.

[0011] Furthermore, the system gas volume information includes a normal total CO gas production and an abnormal total CO gas production, and the calculation of the unconverted system effective gas gap according to the system gas volume information includes:

[0012] Calculate the effective gas gap of the unconverted system as:

[0013]

[0014] Among them, F unshifted is the effective gas gap of the unconverted system, CO normal is the normal total CO production, CO abnormal is the total amount of abnormal CO gas production, and b is the effective gas efficiency of the unconverted gas.

[0015] Furthermore, the system gas volume information includes a normal total oxygen consumption and an abnormal total oxygen consumption, and the hydrogen gap is calculated according to the system gas volume information, including:

[0016] Calculate the hydrogen gap as:

[0017] F H =(O normal -O abnormal )*a*c*d

[0018] Among them, F H is the hydrogen gap, O normal is the normal total oxygen consumption, O abnormal is the total abnormal oxygen consumption, a is the effective gas efficiency of oxygen, c is the effective gas efficiency of shift gas, and d is the gas production efficiency of pressure swing adsorption.

[0019] Furthermore, the calculating of the effective gas conversion volume transferred from the conversion system to the unconverted system according to the effective gas gap of the unconverted system includes:

[0020] The effective gas gap of the unconverted system is used as the effective gas conversion volume transferred from the conversion system to the unconverted system.

[0021] Furthermore, the calculation of the hydrogen user gas withdrawal amount according to the hydrogen gap includes:

[0022] Set the gas withdrawal priority for each hydrogen user;

[0023] A gas volume calculation operation is performed according to the degassing priority.

[0024] Furthermore, the step of setting the gas withdrawal priority of each hydrogen user includes:

[0025] Obtain historical operation data of the gasifier;

[0026] Analyze the historical operation data to obtain the priority protection level of each hydrogen user;

[0027] The degassing priority is set according to the priority protection level.

[0028] Furthermore, the system gas volume information also includes the hydrogen user minimum load of each hydrogen user and the hydrogen user load of each hydrogen user. The gas volume calculation operation is performed according to the gas withdrawal priority, including:

[0029] Selecting one of the hydrogen users in turn as the current hydrogen user according to the gas withdrawal priority;

[0030] The corresponding gas withdrawal amount when the hydrogen user load of the current hydrogen user is reduced to the minimum load of the hydrogen user is used as the current maximum gas withdrawal amount;

[0031] The total gas depletion amount to be determined is calculated as the sum of the total gas depletion amounts of all the hydrogen users before and the current maximum gas depletion amount, and the total gas depletion amount is the sum of the hydrogen user gas depletion amounts of all the hydrogen users before;

[0032] If the total gas depletion amount is less than the hydrogen gap, the total gas depletion amount is updated to the total gas depletion amount to be determined, the current maximum gas depletion amount is used as the hydrogen user depletion amount of the current hydrogen user, and the gas volume calculation operation is performed again;

[0033] If the total gas depletion amount is greater than or equal to the hydrogen gap, reduce the hydrogen user load of the current hydrogen user until the corresponding gas depletion amount and the sum of the total gas depletion amounts of all previous hydrogen users are equal to the hydrogen gap, use the gas depletion amount as the hydrogen user gas depletion amount of the current hydrogen user, update the total gas depletion amount to the sum of the hydrogen user gas depletion amount and the total gas depletion amounts of all previous hydrogen users, and exit the gas volume calculation operation.

[0034] The present invention provides a gasifier abnormal emergency device, comprising:

[0035] A gas volume detection module is used to obtain system gas volume information after an abnormal tripping condition occurs in the gasifier, and calculate the effective gas gap and hydrogen gap of the unconverted system according to the system gas volume information;

[0036] An effective gas conversion volume calculation module is used to calculate the effective gas conversion volume transferred from the conversion system to the unconverted system according to the effective gas gap of the unconverted system;

[0037] A hydrogen user gas withdrawal amount calculation module, used to calculate the hydrogen user gas withdrawal amount according to the hydrogen gap;

[0038] The display module is used to provide emergency operation guidance according to the effective gas conversion volume and the hydrogen user gas withdrawal volume.

[0039] The present invention provides an electronic device, comprising:

[0040] at least one processor; and,

[0041] a memory communicatively connected to at least one of the processors; wherein,

[0042] The memory stores instructions that can be executed by at least one of the processors. The instructions are executed by at least one of the processors to enable the at least one of the processors to execute the gasifier abnormality emergency method as described above.

[0043] The present invention provides a storage medium, wherein the storage medium stores computer instructions. When a computer executes the computer instructions, the storage medium is used to execute all steps of the gasifier abnormality emergency method as described above.

[0044] After obtaining the abnormal tripping condition of the gasifier, the present invention calculates the effective gas gap and hydrogen gap of the unconverted system, and then predicts the effective gas conversion volume from the conversion system to the unconverted system through the gas withdrawal priority, and then calculates the hydrogen user gas withdrawal volume, and finally gives emergency operation guidance according to the effective gas conversion volume and hydrogen user gas withdrawal volume. Thus, the emergency response time of the gasifier tripping is reduced, the emergency operation volume is reduced, and the accuracy of the emergency operation is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is a working diagram of a gasifier abnormal emergency method according to an embodiment of the present invention;

[0046] Figure 2 This is a work flow chart of a gasifier abnormal emergency method according to another embodiment of the present invention;

[0047] Figure 3 A flow chart of a gasifier and a downstream pipe network according to another embodiment of the present invention;

[0048] Figure 4 This is a module diagram of a gasifier abnormal emergency device according to an embodiment of the present invention;

[0049] Figure 5The figure is a schematic diagram of the hardware structure of an electronic device of the present invention. DETAILED DESCRIPTION

[0050] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. The same components are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0051] like Figure 1 The figure shows a working flow chart of a gasifier abnormal emergency method according to an embodiment of the present invention, comprising:

[0052] Step S101, after an abnormal tripping condition occurs in the gasifier, system gas volume information is obtained, and the unconverted system effective gas gap and hydrogen gap are calculated according to the system gas volume information;

[0053] Step S102, calculating the effective gas conversion volume transferred from the conversion system to the unconverted system according to the effective gas gap of the unconverted system;

[0054] Step S103, calculating the hydrogen user's gas withdrawal amount according to the hydrogen gap;

[0055] Step S104, providing emergency operation guidance according to the effective gas conversion volume and the hydrogen user gas withdrawal volume.

[0056] Specifically, after an abnormal tripping condition occurs in the gasifier, step S101 is executed to collect the gas volume information of the gasifier system, and the effective gas gap and the hydrogen gap of the unconverted system are calculated based on the system gas volume information; then step S102 is executed to predict the effective gas conversion volume that needs to be transferred from the conversion system to the unconverted system based on the effective gas gap of the unconverted system; then step S103 is executed to calculate the required gas withdrawal volume of each hydrogen user based on the hydrogen gap; finally, step S104 is executed to provide emergency operation guidance based on the effective gas conversion volume and the gas withdrawal volume of the hydrogen users.

[0057] After obtaining the abnormal tripping condition of the gasifier, the present invention calculates the effective gas gap and hydrogen gap of the unconverted system, and then predicts the effective gas conversion volume from the conversion system to the unconverted system through the gas withdrawal priority, and then calculates the hydrogen user gas withdrawal volume, and finally gives emergency operation guidance according to the effective gas conversion volume and hydrogen user gas withdrawal volume. Thus, the emergency response time of the gasifier tripping is reduced, the emergency operation volume is reduced, and the accuracy of the emergency operation is improved.

[0058] like Figure 2 The figure shows a working flow chart of a gasifier abnormal emergency method in another embodiment of the present invention, comprising:

[0059] Step S201, after an abnormal tripping condition occurs in the gasifier, system gas volume information is obtained, and the unconverted system effective gas gap and hydrogen gap are calculated based on the system gas volume information.

[0060] In one embodiment, the system gas volume information includes a normal total CO gas production and an abnormal total CO gas production, and the calculation of the unconverted system effective gas gap according to the system gas volume information includes: the calculation formula of the unconverted system effective gas gap is as follows:

[0061]

[0062] Among them, F un is the effective gas gap of the unconverted system, CO normal is the normal total CO production, CO abnormal is the total amount of abnormal CO gas production, and b is the effective gas efficiency of the unconverted gas.

[0063] Specifically, when one or more nozzles fail to work properly, it is considered that the gasifier has an abnormal trip condition; by collecting and analyzing the system gas volume information, the gasifier system sends an excitation signal of abnormal working condition, and then the gasifier system gas volume information is obtained. The system gas volume information includes the normal CO gas production total amount and the abnormal CO gas production total amount. The normal CO gas production total amount CO of the gasifier during normal operation is normal Subtract the total amount of abnormal CO produced when the gasifier has an abnormal operating condition of tripping abnormal , and then divided by the effective gas efficiency of the unconverted gas, we get the effective gas gap of the unconverted system. That is, because of the abnormal working condition of the gasifier nozzle failure, the CO production volume decreased, resulting in the effective gas gap of the unconverted system.

[0064] Optionally, the abnormal tripping condition is a condition where two or all nozzles of a gasifier with four nozzles fail.

[0065] In this embodiment, the effective gas gap of the unconverted system is obtained by reducing the amount of CO gas production.

[0066] In one embodiment, the system gas volume information includes normal total oxygen consumption and abnormal total oxygen consumption, and the hydrogen gap is calculated according to the system gas volume information, including:

[0067] Calculate the hydrogen gap as:

[0068] F H =(O normal -O abnormal )*a*c*d

[0069] Among them, F H is the hydrogen gap, Onormal is the normal total oxygen consumption, O abnormal is the total abnormal oxygen consumption, a is the effective gas efficiency of oxygen, c is the effective gas efficiency of shift gas, and d is the gas production efficiency of pressure swing adsorption.

[0070] Specifically, the system gas volume information also includes normal total oxygen consumption and abnormal total oxygen consumption. The difference between the normal total oxygen consumption when the gasifier system is operating normally and the abnormal total oxygen consumption when the gasifier jumps abnormally is multiplied by the effective gas efficiency of oxygen, the effective gas efficiency of the conversion gas and the pressure swing adsorption gas production efficiency to obtain the hydrogen gap (F H ).

[0071] In this embodiment, the hydrogen gap is calculated by the normal total oxygen consumption and the abnormal total oxygen consumption.

[0072] Step S202, calculating the effective gas conversion volume transferred from the conversion system to the unconverted system according to the effective gas gap of the unconverted system, including: taking the effective gas gap of the unconverted system as the effective gas conversion volume transferred from the conversion system to the unconverted system.

[0073] Specifically, when an abnormal trip occurs in the gasifier, the CO network gas supply must be sufficient first. Therefore, based on the gas volume gap, the effective gas conversion volume that the conversion system needs to transfer effective gas to the unconverted system is predicted, and the effective gas gap of the unconverted system is used as the effective gas conversion volume transferred from the conversion system to the unconverted system.

[0074] By calculating the effective gas gap of the unconverted system, the effective gas conversion volume that needs to be transferred from the conversion system to the unconverted system can be predicted.

[0075] Step S203, calculating the gas withdrawal amount of hydrogen users according to the hydrogen gap, including: setting the gas withdrawal priority of each hydrogen user; and performing a gas volume calculation operation according to the gas withdrawal priority.

[0076] In one embodiment, setting the gas withdrawal priority of each hydrogen user includes:

[0077] Obtain historical operation data of the gasifier;

[0078] Analyze the historical operation data to obtain the priority protection level of each hydrogen user;

[0079] The degassing priority is set according to the priority protection level.

[0080] Specifically, the historical operation data of the gasifier is read from the storage medium, and the priority level of each hydrogen user is obtained by analysis, and the degassing priority is set according to the priority level.

[0081] In some embodiments, the higher the priority protection level, the lower the corresponding degassing priority, and then degassing is performed from high to low according to the hydrogen gap and the degassing priority of each hydrogen user.

[0082] Optionally, the degassing priority is obtained by analyzing the historical data of the gasifier, and the degassing priority is in the following order from high to low: hydrogen user 4>H50 pipeline network (hydrogen user 3)>H50 pipeline network (hydrogen user 1)=H50 pipeline network (hydrogen user 2). Hydrogen user 1 and hydrogen user 2 have the same degassing priority, which means that hydrogen user 1 can be degassed first, or hydrogen user 2 can be degassed first.

[0083] In this embodiment, hydrogen users are deactivated in sequence by setting the deactivation priority of hydrogen users.

[0084] In one embodiment, the system gas volume information further includes a minimum hydrogen user load of each hydrogen user and a hydrogen user load of each hydrogen user, and the performing of the gas volume calculation operation according to the gas withdrawal priority includes:

[0085] Selecting one of the hydrogen users in turn as the current hydrogen user according to the gas withdrawal priority;

[0086] The corresponding gas withdrawal amount when the hydrogen user load of the current hydrogen user is reduced to the minimum load of the hydrogen user is used as the current maximum gas withdrawal amount;

[0087] The total gas depletion amount to be determined is calculated as the sum of the total gas depletion amounts of all the hydrogen users before and the current maximum gas depletion amount, and the total gas depletion amount is the sum of the hydrogen user gas depletion amounts of all the hydrogen users before;

[0088] If the total gas depletion amount is less than the hydrogen gap, the total gas depletion amount is updated to the total gas depletion amount to be determined, the current maximum gas depletion amount is used as the hydrogen user depletion amount of the current hydrogen user, and the gas volume calculation operation is performed again;

[0089] If the total gas depletion amount is greater than or equal to the hydrogen gap, reduce the hydrogen user load of the current hydrogen user until the corresponding gas depletion amount and the sum of the total gas depletion amounts of all previous hydrogen users are equal to the hydrogen gap, use the gas depletion amount as the hydrogen user gas depletion amount of the current hydrogen user, update the total gas depletion amount to the sum of the hydrogen user gas depletion amount and the total gas depletion amounts of all previous hydrogen users, and exit the gas volume calculation operation.

[0090] Specifically, according to the degassing priority, one of the hydrogen users is selected in turn as the current hydrogen user, and the degassing amount corresponding to the hydrogen user load being reduced to the hydrogen user's minimum load is taken as the current maximum degassing amount, and the sum of each current maximum degassing amount is taken as the total degassing amount. If the total degassing amount is greater than or equal to the hydrogen gap, the hydrogen user load of the current hydrogen user is reduced until the corresponding degassing amount and the sum of the total degassing amounts of all previous hydrogen users are equal to the hydrogen gap, and the degassing amount is taken as the hydrogen user degassing amount of the current hydrogen user. At this time, the total degassing amount is the sum of the total degassing amounts of all previous hydrogen users.

[0091] This embodiment predicts and calculates the gas reduction amount of hydrogen users based on the gas reduction priority.

[0092] Step S204, providing emergency operation guidance according to the effective gas conversion volume and the hydrogen user gas withdrawal volume.

[0093] In some embodiments, the emergency operation instructions include:

[0094] The effective gas intake amount of the conversion system 302 and the effective gas intake amount of the unconverted system 303 are determined by the effective gas conversion amount transferred from the conversion system to the unconverted system; and

[0095] The hydrogen user gas refund amount of each of the hydrogen users.

[0096] like Figure 3 It is a flow chart of a gasifier and a downstream pipe network of another embodiment of the present invention. Coal and oxygen are gasified in the gasifier 301 to produce effective gas, which enters the conversion system 302 and the unconverted system 303 respectively. The conversion system produces hydrogen which enters the hydrogen pipe network 304, and the unconverted system produces CO which enters the CO pipe network 305. The emergency operation navigation will give two instructions in total. One is that the gasifier 301 guides the rapid gas change from the conversion system 302 to the unconverted system 303 according to the effective gas intake of the conversion system 302 and the effective gas intake of the unconverted system 303, so as to ensure that the carbon monoxide pipe network 305 is least affected; the other is that the downstream hydrogen users can achieve rapid gas withdrawal according to the guidance of the hydrogen user's gas withdrawal amount to maintain the balance of the hydrogen pipe network 304.

[0097] This embodiment provides emergency operation suggestions based on the gas volume allocation result.

[0098] The present invention reads the abnormal tripping condition of the gasifier and the system gas volume information, analyzes and calculates the effective gas gap and hydrogen gap of the unconverted system, predicts the effective gas conversion volume transferred from the conversion system to the unconverted system, and then predicts the gas withdrawal volume of each hydrogen user according to the gas withdrawal priority; guides the rapid gas conversion according to the effective gas conversion volume to ensure that the carbon monoxide pipeline network is least affected, and guides the rapid gas withdrawal according to the gas withdrawal volume of the hydrogen user to maintain the balance of the hydrogen pipeline network. Thereby improving the emergency response speed of the gasifier abnormality and the accuracy of emergency operation.

[0099] Preferred Embodiments

[0100] Taking the water-coal slurry gasification process as an example, the hybrid model is established based on material balance and energy balance:

[0101] Material Balance:

[0102]

[0103] Energy balance:

[0104]

[0105] Among them, F a To F f is the stream flow rate, y a To f is the corresponding stream mole fraction, H a To H f is the corresponding stream molar enthalpy, △ r H f is the molar reaction enthalpy, r i is the gas constant, v f is the volume of gas.

[0106] The main reaction is:

[0107]

[0108] C m H n +(m / 2)O2→mCO+(m / 2)H2

[0109] C+O2→CO2

[0110] 2C+O2→2CO

[0111] Carbon combustion reaction rate:

[0112] λ=(2Z+2) / (Z+2)

[0113]

[0114]

[0115]

[0116]

[0117] Y=r core / r particle

[0118] Among them, Z is the molar concentration ratio of CO and CO2, R1 is the reaction rate, k film is the diffusion coefficient of the gas film, k ash is the ash diffusion coefficient, p(O2) is the oxygen partial pressure, T is the reaction temperature, d p is the coal particle diameter, ε p is the porosity of the ash layer, r core is the radius of the unreacted coal particle, r particle is the particle radius of the feed coal, and Y is the particle size ratio of the unreacted particles.

[0119] The gasification device operates 3 gasifiers in total, with gasifier 1 at 80% load, gasifier 2 at 80% load, and gasifier 3 at 80% load, with a total oxygen consumption of 90,000 Nm 3 / h, total CO production 80000Nm 3 / h, total H2 gas production 72000Nm 3 / h. In the mixed model, the oxygen production efficiency a is 2, the effective gas production efficiency b is 1, the effective gas production efficiency c is 0.8, and the pressure swing adsorption (PSA) gas production efficiency d is 0.9. The gas monitoring module obtains the device operation data in real time, and detects the abnormal trip of gasifier 1 through the change of oxygen content in gasifier 1, and the total oxygen consumption is reduced to 60000Nm 3 / h, the total CO production volume dropped to 60000Nm 3 / h.

[0120] The gas volume gap calculation formulas (1), (2) and (3) are as follows:

[0121]

[0122] F H =(O normal -O abnormal )*a*c*d (2)

[0123]

[0124] in,* unshifted is the effective gas of the unconverted system, F shifted is the effective gas of the conversion system, CO normal is the total normal CO demand, CO abnormalis the total amount of abnormal CO, b is the effective gas efficiency of the unconverted gas, F H is the hydrogen gap, O normal is the normal total oxygen consumption, O abnormal is the total abnormal oxygen consumption, a is the effective gas efficiency of oxygen, c is the effective gas efficiency of shift gas, and d is the gas production efficiency of pressure swing adsorption.

[0125] Therefore, to maintain the total CO production unchanged, the unconverted system requires effective gas:

[0126]

[0127] The amount of gas transferred from the conversion system to the non-conversion system: 80000-60000=20000

[0128] Effective gas gap: (O normal -O abnormal )*a=(90000-60000)*2=60000

[0129] Hydrogen Gap:

[0130] F H =(O normal -O abnormal )*a*c*d=(90000-60000)*2*0.8*0.9=43200

[0131] Conversion system effective gas:

[0132]

[0133] The effective gas of the unconverted gas system is 80000Nm 3 / h, the effective gas of the conversion gas system is 40000Nm 3 / h, hydrogen gap is 43200Nm 3 / h. User 4 load before abnormal trip is 30000Nm 3 / h, the minimum load of user 4 is 0, and the load of user 3 is 30000Nm 3 / h, the minimum load of user 3 is 20000Nm 3 / h, user 2 load is 25000Nm 3 / h, the minimum load of user 2 is 10000Nm 3 / h, user 1 load is 20000Nm 3 / h.

[0134] The gas volume calculation module is based on the hydrogen gap of 43200Nm 3 / h was substituted into the hybrid model for prediction. The prediction result was that the load of user 4 was reduced to 0Nm 3 / h, exhaust volume is 30000Nm3 / h; User 3 load is reduced to the minimum load, and the exhaust volume is 10000Nm 3 / h; User 2 load reduced to 21800Nm 3 / h, exhaust volume is 3200Nm 3 / h; User 1 maintains normal load, that is, the gas withdrawal amount of User 1 is 0. Therefore, the hydrogen user gas withdrawal amount = 30000 + 10000 + 3200 = 43200 = hydrogen gap.

[0135] Based on the same inventive concept, Figure 4 The figure shows a module diagram of a gasifier abnormal emergency device according to an embodiment of the present invention, comprising:

[0136] A gas volume detection module 401 is used to obtain system gas volume information and calculate the unconverted system effective gas gap and hydrogen gap according to the system gas volume information;

[0137] An effective gas conversion volume calculation module 402 is used to calculate the effective gas conversion volume transferred from the conversion system to the unconverted system according to the effective gas gap of the unconverted system;

[0138] A hydrogen user gas withdrawal amount calculation module 403 is used to calculate the hydrogen user gas withdrawal amount according to the hydrogen gap;

[0139] The display module 404 is used to provide emergency operation guidance according to the effective gas conversion volume and the hydrogen user gas withdrawal volume.

[0140] Specifically, the gasifier 301 uses coal and oxygen to produce effective gas, and the effective gas enters the conversion system and the unconverted system respectively, and is detected and calculated by the gasifier abnormal emergency device, and finally outputs emergency operation guidance.

[0141] The present invention reads the abnormal tripping condition of the gasifier and the system gas volume information, analyzes and calculates the effective gas gap and hydrogen gap of the unconverted system, and then predicts the effective gas conversion volume transferred from the conversion system to the unconverted system and the gas withdrawal volume of each hydrogen user according to the gas withdrawal priority, and guides the rapid gas conversion according to the effective gas conversion volume to ensure that the carbon monoxide pipeline network is minimally affected; guides the rapid gas withdrawal according to the gas withdrawal volume of the hydrogen user to maintain the balance of the hydrogen pipeline network. This improves the emergency response speed of the gasifier abnormality and the accuracy of emergency operation.

[0142] In one embodiment, the system gas volume information includes a normal total CO gas production and an abnormal total CO gas production, and the calculation of the unconverted system effective gas gap according to the system gas volume information includes:

[0143] Calculate the effective gas gap of the unconverted system as:

[0144]

[0145] Among them, F unshifted is the effective gas gap of the unconverted system, CO normal is the normal total CO production, CO abnormal is the total amount of abnormal CO gas production, and b is the effective gas efficiency of the unconverted gas.

[0146] In one embodiment, the system gas volume information includes normal total oxygen consumption and abnormal total oxygen consumption, and the hydrogen gap is calculated according to the system gas volume information, including:

[0147] Calculate the hydrogen gap as:

[0148] F H =(O normal -O abnormal )*a*c*d

[0149] Among them, F H is the hydrogen gap, O normal is the normal total oxygen consumption, O abnormal is the total abnormal oxygen consumption, a is the effective gas efficiency of oxygen, c is the effective gas efficiency of shift gas, and d is the gas production efficiency of pressure swing adsorption.

[0150] In one embodiment, the calculating the effective gas conversion amount transferred from the conversion system to the unconverted system according to the effective gas gap of the unconverted system comprises:

[0151] The effective gas gap of the unconverted system is used as the effective gas conversion volume transferred from the conversion system to the unconverted system.

[0152] In one embodiment, the calculating the hydrogen user's gas withdrawal amount according to the hydrogen gap includes:

[0153] Set the gas withdrawal priority for each hydrogen user;

[0154] A gas volume calculation operation is performed according to the degassing priority.

[0155] In one embodiment, setting the gas withdrawal priority of each hydrogen user includes:

[0156] Obtain historical operation data of the gasifier;

[0157] Analyze the historical operation data to obtain the priority protection level of each hydrogen user;

[0158] The degassing priority is set according to the priority protection level.

[0159] In one embodiment, the system gas volume information further includes a minimum hydrogen user load of each hydrogen user and a hydrogen user load of each hydrogen user, and the performing of the gas volume calculation operation according to the gas withdrawal priority includes:

[0160] Selecting one of the hydrogen users in turn as the current hydrogen user according to the gas withdrawal priority;

[0161] The corresponding gas withdrawal amount when the hydrogen user load of the current hydrogen user is reduced to the minimum load of the hydrogen user is used as the current maximum gas withdrawal amount;

[0162] The total gas depletion amount to be determined is calculated as the sum of the total gas depletion amounts of all the hydrogen users before and the current maximum gas depletion amount, and the total gas depletion amount is the sum of the hydrogen user gas depletion amounts of all the hydrogen users before;

[0163] If the total gas depletion amount is less than the hydrogen gap, the total gas depletion amount is updated to the total gas depletion amount to be determined, the current maximum gas depletion amount is used as the hydrogen user depletion amount of the current hydrogen user, and the gas volume calculation operation is performed again;

[0164] If the total gas depletion amount is greater than or equal to the hydrogen gap, reduce the hydrogen user load of the current hydrogen user until the corresponding gas depletion amount and the sum of the total gas depletion amounts of all previous hydrogen users are equal to the hydrogen gap, use the gas depletion amount as the hydrogen user gas depletion amount of the current hydrogen user, update the total gas depletion amount to the sum of the hydrogen user gas depletion amount and the total gas depletion amounts of all previous hydrogen users, and exit the gas volume calculation operation.

[0165] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0166] like Figure 5 The figure shows a hardware structure diagram of an electronic device of the present invention, including:

[0167] at least one processor 501; and,

[0168] A memory 502 is communicatively connected to at least one of the processors 501; wherein,

[0169] The memory 502 stores instructions that can be executed by at least one of the processors. The instructions are executed by at least one of the processors so that the at least one of the processors can execute the gasifier abnormality emergency method as described above.

[0170] Figure 5 A processor 501 is taken as an example.

[0171] The electronic device may further include: an input device 503 and a display device 504 .

[0172] The processor 501, the memory 502, the input device 503 and the display device 504 may be connected via a bus or other means, and the figure takes the connection via a bus as an example.

[0173] The memory 502 is a non-volatile computer-readable storage medium that can be used to store non-volatile software programs, non-volatile computer executable programs and modules, such as program instructions / modules corresponding to the gasifier abnormal emergency method in the embodiment of the present application, for example, Figure 1 , Figure 2 , Figure 3 The processor 501 executes various functional applications and data processing by running the non-volatile software programs, instructions and modules stored in the memory 502, that is, the emergency method for abnormality of the gasifier in the above embodiment is implemented.

[0174] The memory 502 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and application programs required by at least one function; the data storage area may store data created according to the use of the gasifier abnormal emergency method, etc. In addition, the memory 502 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 502 may optionally include a memory remotely arranged relative to the processor 501, and these remote memories may be connected to the device for executing the gasifier abnormal emergency method via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0175] The input device 503 can receive user clicks and generate signal inputs related to user settings and function control of the gasifier abnormal emergency method. The display device 504 can include display devices such as a display screen.

[0176] The one or more modules are stored in the memory 502, and when being executed by the one or more processors 501, the gasifier abnormality emergency method in any of the above method embodiments is executed.

[0177] The present invention reads the abnormal tripping condition of the gasifier and the system gas volume information, analyzes and calculates the effective gas gap and hydrogen gap of the unconverted system, and then predicts the effective gas conversion volume transferred from the conversion system to the unconverted system and the gas withdrawal volume of each hydrogen user according to the gas withdrawal priority, and guides the rapid gas conversion according to the effective gas conversion volume to ensure that the carbon monoxide pipeline network is minimally affected; guides the rapid gas withdrawal according to the gas withdrawal volume of the hydrogen user to maintain the balance of the hydrogen pipeline network. This improves the emergency response speed of the gasifier abnormality and the accuracy of emergency operation.

[0178] An embodiment of the present invention provides a storage medium, wherein the storage medium stores computer instructions. When a computer executes the computer instructions, the storage medium is used to execute all steps of the gasifier abnormality emergency method as described above.

[0179] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A gasifier abnormal emergency method, characterized in that: include: After an abnormal tripping condition occurs in the gasifier, the system gas volume information is obtained, and the effective gas gap and hydrogen gap of the unconverted system are calculated according to the system gas volume information; Calculate the effective gas volume transferred from the conversion system to the unconverted system according to the effective gas gap of the unconverted system; According to the hydrogen gap, the amount of hydrogen users withdrawing gas is calculated; Emergency operation guidance is given according to the effective gas conversion volume and the hydrogen user gas withdrawal volume.

2. The gasifier abnormal emergency method according to claim 1, characterized in that: The system gas volume information includes a normal CO gas production total amount and an abnormal CO gas production total amount. The calculation of the unconverted system effective gas gap according to the system gas volume information includes: Calculate the effective gas gap of the unconverted system as: Among them, F unshifted is the effective gas gap of the unconverted system, CO normal is the normal total C0 gas production, CO abnormal is the total amount of abnormal C0 gas production, and b is the effective gas efficiency of the unconverted gas.

3. The gasifier abnormality emergency method according to claim 1, characterized in that: The system gas volume information includes normal total oxygen consumption and abnormal total oxygen consumption, and the hydrogen gap is calculated according to the system gas volume information, including: Calculate the hydrogen gap as: F H =(O normal -O abnormal )*a*c*d Among them, F H is the hydrogen gap, O normal is the normal total oxygen consumption, O abnormal is the total abnormal oxygen consumption, a is the effective gas efficiency of oxygen, c is the effective gas efficiency of shift gas, and d is the gas production efficiency of pressure swing adsorption.

4. The gasifier abnormal emergency method according to claim 1, characterized in that: The calculating the effective gas conversion amount transferred from the conversion system to the unconverted system according to the effective gas gap of the unconverted system comprises: The effective gas gap of the unconverted system is used as the effective gas conversion volume transferred from the conversion system to the unconverted system.

5. The gasifier abnormal emergency method according to claim 1, characterized in that: The step of calculating the hydrogen user gas withdrawal amount according to the hydrogen gap includes: Set the gas withdrawal priority for each hydrogen user; A gas volume calculation operation is performed according to the degassing priority.

6. The gasifier abnormality emergency method according to claim 5, characterized in that: The step of setting the gas withdrawal priority for each hydrogen user includes: Obtain historical operation data of the gasifier; Analyze the historical operation data to obtain the priority protection level of each hydrogen user; The degassing priority is set according to the priority protection level.

7. The gasifier abnormality emergency method according to claim 5, characterized in that: The system gas volume information also includes the minimum hydrogen user load of each hydrogen user and the hydrogen user load of each hydrogen user. The performing of the gas volume calculation operation according to the gas withdrawal priority includes: Selecting one of the hydrogen users in turn as the current hydrogen user according to the gas withdrawal priority; The corresponding gas withdrawal amount when the hydrogen user load of the current hydrogen user is reduced to the minimum load of the hydrogen user is used as the current maximum gas withdrawal amount; The total gas depletion amount to be determined is calculated as the sum of the total gas depletion amounts of all the hydrogen users before and the current maximum gas depletion amount, and the total gas depletion amount is the sum of the hydrogen user gas depletion amounts of all the hydrogen users before; If the total gas depletion amount is less than the hydrogen gap, the total gas depletion amount is updated to the total gas depletion amount to be determined, the current maximum gas depletion amount is used as the hydrogen user depletion amount of the current hydrogen user, and the gas volume calculation operation is performed again; If the total gas depletion amount is greater than or equal to the hydrogen gap, reduce the hydrogen user load of the current hydrogen user until the corresponding gas depletion amount and the sum of the total gas depletion amounts of all previous hydrogen users are equal to the hydrogen gap, use the gas depletion amount as the hydrogen user gas depletion amount of the current hydrogen user, update the total gas depletion amount to the sum of the hydrogen user gas depletion amount and the total gas depletion amounts of all previous hydrogen users, and exit the gas volume calculation operation.

8. A gasifier abnormal emergency device, characterized in that: include: A gas volume detection module is used to obtain system gas volume information after an abnormal tripping condition occurs in the gasifier, and calculate the effective gas gap and hydrogen gap of the unconverted system according to the system gas volume information; An effective gas conversion volume calculation module is used to calculate the effective gas conversion volume transferred from the conversion system to the unconverted system according to the effective gas gap of the unconverted system; A hydrogen user gas withdrawal amount calculation module, used to calculate the hydrogen user gas withdrawal amount according to the hydrogen gap; The display module is used to provide emergency operation guidance according to the effective gas conversion volume and the hydrogen user gas withdrawal volume.

9. An electronic device, characterized in that: include: at least one processor; as well as, a memory communicatively connected to at least one of the processors; wherein, The memory stores instructions that can be executed by at least one of the processors, and the instructions are executed by at least one of the processors to enable at least one of the processors to execute the gasifier abnormality emergency method according to any one of claims 1 to 7.

10. A storage medium, characterized in that: The storage medium stores computer instructions, and when a computer executes the computer instructions, it is used to execute all steps of the gasifier abnormality emergency method according to any one of claims 1 to 7.

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