CN114570155B - Molecular sieve sequential control switching method and device, storage medium and electronic equipment - Google Patents
Molecular sieve sequential control switching method and device, storage medium and electronic equipment Download PDFInfo
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- CN114570155B CN114570155B CN202210133372.6A CN202210133372A CN114570155B CN 114570155 B CN114570155 B CN 114570155B CN 202210133372 A CN202210133372 A CN 202210133372A CN 114570155 B CN114570155 B CN 114570155B
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- 239000002808 molecular sieve Substances 0.000 title claims abstract description 99
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 75
- 230000008569 process Effects 0.000 claims abstract description 46
- 230000002159 abnormal effect Effects 0.000 claims abstract description 36
- 230000008034 disappearance Effects 0.000 claims description 10
- 238000004590 computer program Methods 0.000 claims description 8
- 230000004044 response Effects 0.000 claims description 7
- 230000003111 delayed effect Effects 0.000 claims description 6
- 230000004048 modification Effects 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 4
- 238000005457 optimization Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/108—Zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/116—Molecular sieves other than zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40003—Methods relating to valve switching
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40084—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by exchanging used adsorbents with fresh adsorbents
Abstract
The invention relates to the technical field of molecular sieve switching, in particular to a molecular sieve sequential control switching method, a device, a storage medium and electronic equipment, which comprise the steps of obtaining parameters to be judged; judging whether the parameter to be judged accords with a first switching condition, wherein the first switching condition comprises that an inlet and outlet valve control instruction is consistent with a state of a closing feedback signal and is inconsistent with a state of an opening feedback signal; if yes, the inlet and outlet valves are in a normal state, and a molecular sieve switching process is executed; and if not, executing the fault flow of the inlet and outlet valve when the inlet and outlet valve is in an abnormal state. According to the invention, whether the inlet and outlet valves of the standby molecular sieve are in the full-open state is accurately judged by using the inlet and outlet valve control instruction, the closing feedback signal and the opening feedback signal, so that the phenomenon that the switching flow of the standby molecular sieve is entered when the outlet and inlet valves of the standby molecular sieve are not fully opened is effectively avoided, and the phenomenon that the process system is not influenced due to insufficient air inlet of the molecular sieve is avoided, and the long-period stable operation of the process system is greatly ensured.
Description
Technical Field
The invention relates to the technical field of molecular sieve switching, in particular to a molecular sieve sequential control switching method, a device, a storage medium and electronic equipment.
Background
In the existing molecular sieve sequential control switching method, when the valves of the outlet and inlet of the standby molecular sieve are out of order, namely, the control command and the closing feedback signal are not corresponding, the molecular sieve sequential control program stops at the current step, the molecular sieve is not switched, and the process is not influenced. However, since the inlet and outlet valve open feedback signal is not designed, the state judgment of the inlet and outlet valve is only judged by the control command and the close feedback signal, the inlet and outlet valve is judged to be in the full open state by the control command of the inlet and outlet valve and the close signal is disappeared, after the program judges that the inlet and outlet valve is opened, the switching program is executed after the program sets for 60 seconds, so that the problem that whether the inlet and outlet valve is full open or not is not accurately judged, the switching program which is entered when the standby molecular sieve exits that the inlet valve is not full open is easily caused, and the equipment is jumped is caused due to insufficient air inlet of the molecular sieve.
Disclosure of Invention
The invention provides a molecular sieve sequential control switching method, a device, a storage medium and electronic equipment, which overcome the defects of the prior art, and can effectively solve the problems that the existing molecular sieve sequential control switching method does not introduce an inlet and outlet valve opening feedback signal, is easy to cause a switching program which is entered when a standby molecular sieve outlet and inlet valve is not fully opened, and causes insufficient molecular sieve air inlet to cause equipment to jump.
One of the technical schemes of the invention is realized by the following measures: a molecular sieve sequential control switching method comprises the following steps:
obtaining parameters to be judged, wherein the parameters to be judged comprise: an inlet and outlet valve control command, a closing feedback signal and an opening feedback signal;
judging whether the parameter to be judged accords with a first switching condition, wherein the first switching condition comprises that an inlet and outlet valve control instruction is consistent with a state of a closing feedback signal and is inconsistent with a state of an opening feedback signal;
if yes, the inlet and outlet valves are in a normal state, the molecular sieve switching conditions are met, and a molecular sieve switching process is executed;
and if not, executing the fault flow of the inlet and outlet valve when the inlet and outlet valve is in an abnormal state.
The following are further optimizations and/or improvements to the above-described inventive solution:
and if not, executing an inlet and outlet valve fault flow, wherein the inlet and outlet valve is in an abnormal state, and the fault flow comprises the following steps:
the inlet and outlet valve is in an abnormal state and outputs an abnormal signal;
setting delay time, delaying the abnormal signal, and judging whether the parameter to be judged accords with a second switching condition in the delay process, wherein the second switching condition comprises disappearance of the off feedback signal and receipt of the on feedback signal;
if yes, the inlet and outlet valves are in a normal state, the molecular sieve switching conditions are met, and a molecular sieve switching process is executed;
and if not, and the delay time is completed, the inlet and outlet valve is in an abnormal state, and the fault flow of the inlet and outlet valve is executed.
After the execution of the inlet and outlet valve failure process, the method comprises the following steps:
modifying the inlet and outlet valves;
after modification, continuing to judge whether the parameter to be judged accords with a second switching condition, wherein the second switching condition comprises disappearance of the off feedback signal and receipt of the on feedback signal;
responding to the failure, executing the fault flow of the inlet and outlet valve when the inlet and outlet valve is in an abnormal state;
and (3) circularly judging until the parameter to be judged accords with the second switching condition, and executing a molecular sieve switching process.
The delay time is set according to the travel time of the inlet and outlet valve.
The inlet and outlet valve fault flow comprises the following steps: and outputting a fault signal of the inlet and outlet valve, stopping the current step, and not switching the molecular sieve.
The molecular sieve switching process comprises the following steps: the fault signal of the inlet and outlet valve is not output, and the molecular sieve is switched after the preset step time is delayed.
The second technical scheme of the invention is realized by the following measures: a molecular sieve sequential control switching device comprising:
the acquisition unit acquires parameters to be judged, wherein the parameters to be judged comprise: an inlet and outlet valve control command, a closing feedback signal and an opening feedback signal;
the judging unit judges whether the parameter to be judged accords with a first switching condition, wherein the first switching condition comprises that the control instruction of the inlet and outlet valve is consistent with the state of the closing feedback signal and is inconsistent with the state of the opening feedback signal;
the execution unit responds to the condition that the inlet and outlet valve is in a normal state and accords with the molecular sieve switching condition, and the molecular sieve switching process is executed; and if not, executing the fault flow of the inlet and outlet valve when the inlet and outlet valve is in an abnormal state.
The following are further optimizations and/or improvements to the above-described inventive solution:
the execution unit includes:
the first execution module is used for executing a molecular sieve switching flow after judging that the parameters to be judged meet the first switching conditions;
the second execution module is used for outputting an abnormal signal after judging that the parameter to be judged does not accord with the first switching condition, setting delay time, delaying the abnormal signal, and judging whether the parameter to be judged accords with the second switching condition in the delay process, wherein the second switching condition comprises disappearance of the off feedback signal and receipt of the on feedback signal; if yes, the inlet and outlet valves are in a normal state, the molecular sieve switching conditions are met, and a molecular sieve switching process is executed; and if not, and the delay time is completed, the inlet and outlet valve is in an abnormal state, and the fault flow of the inlet and outlet valve is executed.
According to the invention, whether the inlet and outlet valves of the standby molecular sieve are in the full-open state is accurately judged by using the inlet and outlet valve control instruction, the closing feedback signal and the opening feedback signal, so that the switching process can be executed when the inlet and outlet valves of the standby molecular sieve are in the full-open state, the switching accuracy is ensured, the problem of vehicle jump caused by insufficient air inlet of the molecular sieve due to the switching process when the inlet and outlet valves of the standby molecular sieve are not fully opened is effectively avoided, the process system is not influenced, and the long-period stable operation of the process system is greatly ensured.
Drawings
FIG. 1 is a flow chart of the method of example 1 of the present invention.
Fig. 2 is a flowchart of a method for performing a fault flow of an inlet and outlet valve in embodiment 2 of the present invention.
Fig. 3 is a flowchart of a method for judging again after executing the failure flow of the inlet and outlet valve in embodiment 3 of the present invention.
Fig. 4 is a block diagram of the apparatus according to embodiment 4 of the present invention.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present invention.
The invention is further described below with reference to examples and figures:
example 1: as shown in fig. 1, the embodiment of the invention discloses a molecular sieve sequential control switching method, which comprises the following steps:
step S101, obtaining parameters to be judged, wherein the parameters to be judged comprise: an inlet and outlet valve control command, a closing feedback signal and an opening feedback signal;
step S102, judging whether the parameter to be judged accords with a first switching condition, wherein the first switching condition comprises that an inlet and outlet valve control instruction is consistent with a state of a closing feedback signal and is inconsistent with a state of an opening feedback signal;
step S103, responding to yes, the inlet and outlet valve is in a normal state, meets the molecular sieve switching condition, and executes a molecular sieve switching flow; the molecular sieve switching process here includes: the method comprises the steps that a fault signal of an inlet valve is not output, and after a preset step time is delayed, the molecular sieve is switched; the step sequence time is set according to the switching time of the valve and the transmission fault-tolerant time of 5S to 10S;
step S104, responding to the failure state of the inlet and outlet valve, and executing the fault flow of the inlet and outlet valve. Here, the gate valve failure process includes: and outputting a fault signal of the inlet and outlet valve, stopping the current step, and not switching the molecular sieve.
Because the switching of the molecular sieve needs to be performed when the inlet and outlet valve of the standby molecular sieve is in the fully opened state, in the step S101, the parameters to be judged include an inlet and outlet valve control instruction, a closing feedback signal and an opening feedback signal (where the inlet and outlet valve control instruction includes an opening instruction, and the closing feedback signal and the opening feedback signal are signals output when the inlet and outlet valve is fully closed or fully opened), and by introducing the opening feedback signal, it is convenient for the follow-up accurate judgment whether the inlet and outlet valve is in the fully opened state.
The first switching condition in step S102 includes that the inlet and outlet valve control command is consistent with the state of the off feedback signal and inconsistent with the state of the on feedback signal; wherein access valve control command is consistent with closing feedback signal state has two kinds of situations, includes: 1. the inlet and outlet valve control command is an off command (the inlet and outlet valve control command is "1"), and the off feedback signal exists (the off feedback signal is "1"); 2. the inlet and outlet valve control command is an open command (the inlet and outlet valve control command is "0"), and the off feedback signal disappears (the off feedback signal is "0"); under normal conditions, the control instruction of the inlet and outlet valve sent out by the molecular sieve in the process of sequential control switching is an opening instruction. The state of the gate valve control command is consistent with the state of the gate feedback signal and inconsistent with the state of the open feedback signal, namely, the gate valve control command is an open command (the gate valve control command is 0), the gate feedback signal disappears (the gate feedback signal is 0), and the open feedback signal exists (the open feedback signal is 1), so that the gate valve is normal and is in a full open state. Therefore, the embodiment can accurately judge whether the inlet and outlet valve is in the full-open state or not through the three parameters to be judged, so that the molecular sieve can be conveniently and correctly switched, and the process is not influenced.
The inlet and outlet valves in the steps S103 and S104 are in the normal state, that is, the inlet and outlet valves are in the fully opened state, otherwise, the inlet and outlet valves are not in the fully opened state.
The embodiment of the invention discloses a molecular sieve sequential control switching method, which is used for accurately judging whether an inlet and outlet valve of a standby molecular sieve is in a full-open state or not by utilizing an inlet and outlet valve control instruction, a closing feedback signal and an opening feedback signal, so that a switching process can be executed when the inlet and outlet valve of the standby molecular sieve is in the full-open state, the switching accuracy is ensured, the problem that the switching process is carried out when an outlet and inlet valve of the standby molecular sieve is not fully opened, and the phenomenon that the air inlet of the molecular sieve is insufficient to cause the skip is avoided, so that a process system is not influenced, and the long-period stable operation of the process system is greatly ensured.
Example 2: as shown in fig. 2, the embodiment of the invention discloses a molecular sieve sequential control switching method, which comprises the following steps:
step S201, obtaining parameters to be determined, where the parameters to be determined include: an inlet and outlet valve control command, a closing feedback signal and an opening feedback signal;
step S202, judging whether the parameter to be judged accords with a first switching condition, wherein the first switching condition comprises that an inlet and outlet valve control instruction is consistent with a state of a closing feedback signal and is inconsistent with a state of an opening feedback signal;
step S203, responding to the yes, the inlet and outlet valve is in a normal state, meets the molecular sieve switching condition, and executes a molecular sieve switching flow;
step S204, in response to no, executing an inlet and outlet valve failure process, where the inlet and outlet valve is in an abnormal state, the process specifically includes:
step S2041, the inlet and outlet valve is in an abnormal state, and an abnormal signal is output;
step S2042, delay time is set, the abnormal signal is delayed, and whether the parameter to be judged accords with a second switching condition is judged in the delay process, wherein the second switching condition comprises disappearance of the off feedback signal and receipt of the on feedback signal;
step S2043, in response to the step S2043, the inlet and outlet valve is in a normal state, meets the molecular sieve switching conditions, and executes a molecular sieve switching flow;
in step S2044, in response to the completion of the delay time, the gate valve is in an abnormal state, and a gate valve failure process is performed.
In step S2042, the delay time is set according to the travel time of the gate valve (i.e., the longest time for the gate valve to open or close), and may be equal to or less than the travel time of the gate valve, while in the delay process, it is determined whether the parameter to be determined meets the second switching condition, and the time of the response action of the gate valve is given, where the second switching condition includes that the off feedback signal disappears, and the on feedback signal is received, i.e., it is determined again whether the gate valve is in the fully open state.
Example 3: as shown in fig. 3, the embodiment of the invention discloses a molecular sieve sequential control switching method, which comprises the following steps:
step S301, obtaining parameters to be determined, where the parameters to be determined include: an inlet and outlet valve control command, a closing feedback signal and an opening feedback signal;
step S302, judging whether the parameter to be judged accords with a first switching condition, wherein the first switching condition comprises that an inlet and outlet valve control instruction is consistent with a state of a closing feedback signal and is inconsistent with a state of an opening feedback signal;
step S303, responding to the yes, the inlet and outlet valve is in a normal state, meets the molecular sieve switching condition, and executes a molecular sieve switching flow;
step S304, in response to no, executing an inlet and outlet valve failure process, including:
step S3041, the inlet and outlet valve is in an abnormal state, and an abnormal signal is output;
step S3042, delay time is set, the abnormal signal is delayed, and whether the parameter to be judged accords with a second switching condition is judged in the delay process, wherein the second switching condition comprises disappearance of the off feedback signal and receipt of the on feedback signal;
step S3043, responding to the condition that the inlet and outlet valve is in a normal state, meeting the molecular sieve switching condition, and executing a molecular sieve switching flow; the molecular sieve switching process here includes: the method comprises the steps that a fault signal of an inlet valve and an outlet valve is not output, and after a preset step time is delayed, the molecular sieve is switched, wherein the step time is set according to the valve switching time plus the transmission fault-tolerant time of 5S to 10S, and the requirement is different from the delay time.
Step S3044, in response to the completion of the delay time and no, the inlet and outlet valve is in an abnormal state, and the fault flow of the inlet and outlet valve is executed;
step S305, after executing the inlet and outlet valve failure flow, specifically includes:
step S3051, modifying the inlet and outlet valve;
step S3052, after modification, continuing to judge whether the parameter to be judged meets a second switching condition, wherein the second switching condition comprises disappearance of the off feedback signal and receipt of the on feedback signal;
step S3053, responding to the failure, the inlet and outlet valve is in an abnormal state, and the fault flow of the inlet and outlet valve is executed; here, the gate valve failure process includes: outputting an outlet valve fault signal, stopping the current step sequence, and not switching the molecular sieve;
and step S3054, circularly judging until the parameter to be judged accords with the second switching condition, and executing a molecular sieve switching flow.
Example 4: as shown in fig. 4, an embodiment of the present invention discloses a molecular sieve sequential control switching device, which includes:
the acquisition unit acquires parameters to be judged, wherein the parameters to be judged comprise: an inlet and outlet valve control command, a closing feedback signal and an opening feedback signal;
the judging unit judges whether the parameter to be judged accords with a first switching condition, wherein the first switching condition comprises that the control instruction of the inlet and outlet valve is consistent with the state of the closing feedback signal and is inconsistent with the state of the opening feedback signal;
the execution unit responds to the condition that the inlet and outlet valve is in a normal state and accords with the molecular sieve switching condition, and the molecular sieve switching process is executed; and if not, executing the fault flow of the inlet and outlet valve when the inlet and outlet valve is in an abnormal state.
Wherein the execution unit comprises:
the first execution module is used for executing a molecular sieve switching flow after judging that the parameters to be judged meet the first switching conditions;
the second execution module is used for outputting an abnormal signal after judging that the parameter to be judged does not accord with the first switching condition, setting delay time, delaying the abnormal signal, and judging whether the parameter to be judged accords with the second switching condition in the delay process, wherein the second switching condition comprises disappearance of the off feedback signal and receipt of the on feedback signal; if yes, the inlet and outlet valves are in a normal state, the molecular sieve switching conditions are met, and a molecular sieve switching process is executed; and if not, and the delay time is completed, the inlet and outlet valve is in an abnormal state, and the fault flow of the inlet and outlet valve is executed.
Embodiment 5, an embodiment of the present invention discloses a storage medium having stored thereon a computer program readable by a computer, the computer program being configured to perform a molecular sieve sequential control switching method when run.
The storage medium may include, but is not limited to: various media capable of storing computer programs, such as a USB flash disk, a read-only memory, a mobile hard disk, a magnetic disk or an optical disk.
Embodiment 6 of the invention discloses an electronic device, which comprises a processor and a memory, wherein a computer program is stored in the memory, and the computer program is loaded and executed by the processor to realize a molecular sieve sequential control switching method.
The electronic equipment further comprises transmission equipment and input/output equipment, wherein the transmission equipment and the input/output equipment are connected with the processor.
The technical characteristics form the optimal embodiment of the invention, have stronger adaptability and optimal implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.
Claims (8)
1. The molecular sieve sequential control switching method is characterized by comprising the following steps of:
obtaining parameters to be judged, wherein the parameters to be judged comprise: an inlet and outlet valve control command, a closing feedback signal and an opening feedback signal;
judging whether the parameter to be judged accords with a first switching condition, wherein the first switching condition comprises that an inlet and outlet valve control instruction is consistent with a state of a closing feedback signal and is inconsistent with a state of an opening feedback signal;
if yes, the inlet and outlet valves are in a normal state, the molecular sieve switching conditions are met, and a molecular sieve switching process is executed;
in response to no, the gate valve is in an abnormal state, and a gate valve failure process is executed, including:
the inlet and outlet valve is in an abnormal state and outputs an abnormal signal;
setting delay time, delaying the abnormal signal, and judging whether the parameter to be judged accords with a second switching condition in the delay process, wherein the second switching condition comprises disappearance of the off feedback signal and receipt of the on feedback signal;
if yes, the inlet and outlet valves are in a normal state, the molecular sieve switching conditions are met, and a molecular sieve switching process is executed;
and if not, and the delay time is completed, the inlet and outlet valve is in an abnormal state, and the fault flow of the inlet and outlet valve is executed.
2. The method for switching between molecular sieves according to claim 1, wherein after said performing a gate valve failure process, the method comprises:
modifying the inlet and outlet valves;
after modification, continuing to judge whether the parameter to be judged accords with a second switching condition, wherein the second switching condition comprises disappearance of the off feedback signal and receipt of the on feedback signal;
responding to the failure, executing the fault flow of the inlet and outlet valve when the inlet and outlet valve is in an abnormal state;
and (3) circularly judging until the parameter to be judged accords with the second switching condition, and executing a molecular sieve switching process.
3. The method of molecular sieve sequential switching according to claim 2, wherein the delay time is set according to a travel time of the inlet and outlet valve.
4. A molecular sieve sequential control switching method according to any one of claims 1 to 3, wherein the inlet and outlet valve failure flow path comprises: and outputting a fault signal of the inlet and outlet valve, stopping the current step, and not switching the molecular sieve.
5. A molecular sieve sequential control switching method according to any one of claims 1 to 3, wherein the molecular sieve switching flow comprises: the fault signal of the inlet and outlet valve is not output, and the molecular sieve is switched after the preset step time is delayed.
6. A molecular sieve sequential control switching device using the molecular sieve sequential control switching method according to any one of claims 1 to 5, characterized by comprising:
the acquisition unit acquires parameters to be judged, wherein the parameters to be judged comprise: an inlet and outlet valve control command, a closing feedback signal and an opening feedback signal;
the judging unit judges whether the parameter to be judged accords with a first switching condition, wherein the first switching condition comprises that the control instruction of the inlet and outlet valve is consistent with the state of the closing feedback signal and is inconsistent with the state of the opening feedback signal;
the execution unit responds to the condition that the inlet and outlet valve is in a normal state and accords with the molecular sieve switching condition, and the molecular sieve switching process is executed; responding to the failure, executing the fault flow of the inlet and outlet valve when the inlet and outlet valve is in an abnormal state; comprising the following steps:
the first execution module is used for executing a molecular sieve switching flow after judging that the parameters to be judged meet the first switching conditions;
the second execution module is used for outputting an abnormal signal after judging that the parameter to be judged does not accord with the first switching condition, setting delay time, delaying the abnormal signal, and judging whether the parameter to be judged accords with the second switching condition in the delay process, wherein the second switching condition comprises disappearance of the off feedback signal and receipt of the on feedback signal; if yes, the inlet and outlet valves are in a normal state, the molecular sieve switching conditions are met, and a molecular sieve switching process is executed; and if not, and the delay time is completed, the inlet and outlet valve is in an abnormal state, and the fault flow of the inlet and outlet valve is executed.
7. A storage medium having stored thereon a computer program readable by a computer, the computer program being arranged to perform the molecular sieve sequential switching method of any of claims 1 to 5 when run.
8. An electronic device comprising a processor and a memory, wherein the memory stores a computer program that is loaded and executed by the processor to implement the molecular sieve sequential switching method of any of claims 1 to 5.
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