Test method and device of oxidation fan system, electronic equipment and medium

Abstract

The invention provides a testing method and device for an oxidation fan system, electronic equipment and a medium, and the method comprises the steps: building an atmosphere testing environment; according to each test opening degree in the opening degree set, an inlet electric door of the oxidation fan system is controlled to act, multiple first safety test opening degrees are screened out from the multiple test opening degrees to form a first safety opening degree set, and the inlet electric door is arranged at an inlet of an oxidation fan; building a no-load test environment; and according to each first safety test opening degree, controlling the entrance electric door to be kept under the first safety test opening degree, controlling an emptying electric door of the oxidation fan system to be completely closed from the maximum opening degree, and determining the final safety opening degree of the entrance electric door according to all the reserved first safety test opening degrees. According to the method, the final safety opening degree of the entrance electrically operated gate is determined by setting up various testing environments, so that the safety starting of the oxidation fan system is ensured.

Description

Technical Field

[0001] This application relates to the technical field of wet desulfurization, and more particularly, to a test method, device, electronic device and medium for an oxidation blower system. Background Art

[0002] The oxidation blower is a key device in the SO absorption system of the limestone-gypsum wet desulfurization device. Its core function is to oxidize tetravalent sulfur in the slurry and convert bisulfite into sulfate. On the one hand, this process can prevent the system fouling caused by the large generation of calcium sulfite, and on the other hand, it promotes the formation of calcium sulfate dihydrate crystals to facilitate the dehydration of by-products.

[0003] For newly built oxidation blowers, equipment manufacturers often provide guidance on the opening degree of the inlet door during startup, and operators start the oxidation blower according to this opening degree. As the operation time of the oxidation blower increases, the performance of the oxidation blower gradually decays. If the oxidation blower is still started according to the inlet door opening degree of the new oxidation blower, problems such as surging or exceeding the safety requirements of the starting current may occur, which may cause damage to the components of the oxidation blower and is not conducive to the safe and stable operation of the desulfurization system. Summary of the Invention

[0004] In view of this, the purpose of this application is to provide a test method, device, electronic device and medium for an oxidation blower system, aiming to determine the final safe opening degree of the inlet electric door by building a variety of test environments to ensure the safe startup of the oxidation blower system.

[0005] In a first aspect, the present application provides a testing method for an oxidation blower system, the method comprising: building an atmospheric testing environment, the atmospheric testing environment including connecting the inlet and the outlet of the oxidation blower of the oxidation blower system to the atmospheric environment respectively; under the atmospheric testing environment, performing the following first testing process: according to each test opening degree in the opening degree set, controlling the inlet electric gate of the oxidation blower system to act, and screening out a plurality of first safety test opening degrees from the plurality of test opening degrees to form a first safety opening degree set according to the first operation data of the oxidation blower at each test opening degree, the inlet electric gate being arranged at the inlet of the oxidation blower; building an unloaded testing environment, the unloaded testing environment including connecting one end of the branch pipe outlet of the oxidation blower system to the absorption tower in an unloaded state, and connecting the other end of the branch pipe outlet to the outlet of the oxidation blower; under the unloaded testing environment, performing the following second testing process: according to each first safety test opening degree, controlling the inlet electric gate to remain at this first safety test opening degree, and controlling the evacuation electric gate of the oxidation blower system to close from the maximum opening degree to the fully closed state, so as to determine whether this first safety test opening degree is retained according to the second operation data of the oxidation blower at this first safety test opening degree, and determining each retained first safety test opening degree as a second safety test opening degree to form a second safety opening degree set, the evacuation electric gate being arranged at the outlet of the oxidation blower; determining the final safety opening degree of the inlet electric gate according to each second safety test opening degree in the second safety opening degree set.

[0006] In a possible implementation manner, the final safety opening degree of the inlet electric gate is determined by the following method: building a loaded testing environment, the loaded testing environment including connecting the branch pipe outlet of the oxidation blower system to the absorption tower in a loaded state; under the loaded testing environment, performing the following third testing process: according to each second safety test opening degree, controlling the inlet electric gate to remain at this second safety test opening degree, and controlling the evacuation electric gate of the oxidation blower system to close from the maximum opening degree to the fully closed state, so as to determine whether this second safety test opening degree is retained according to the third operation data of the oxidation blower at this second safety test opening degree; determining the final safety opening degree of the inlet electric gate from all the retained second safety test opening degrees.

[0007] In a possible implementation manner, the first operation data includes a starting current value and a current fluctuation coefficient. Wherein, the following method is used to screen out a plurality of first safety test opening degrees from a plurality of test opening degrees to form a first safety opening degree set: According to the starting current value and the current fluctuation coefficient of the oxidation blower at each test opening degree, determine whether the oxidation blower system meets the safe starting condition at this test opening degree. The safe starting condition indicates that the duration of the oxidation blower system in the early warning state is less than a set duration. The early warning state includes that the starting current value of the oxidation blower system is greater than a current threshold and / or the current fluctuation coefficient is greater than a fluctuation threshold; Determine the test opening degree that meets the safe starting condition as the first safety test opening degree to form the first safety opening degree set.

[0008] In a possible implementation manner, the method further includes: (A) determining a target first safety test opening degree in the first safety opening degree set; (B) in the no-load test environment, perform the following fourth test process: control the inlet motorized valve to remain at the target first safety test opening degree, and control the exhaust motorized valve of the oxidation blower system to close from the maximum opening degree to the fully closed state, so as to determine whether the target first safety test opening degree meets the safe starting condition according to the fourth operation data of the oxidation blower at the target first safety test opening degree; (C) if the target first safety test opening degree does not meet the safe starting condition, then remove this target first safety test opening degree from the first safety opening degree set, and return to step (A); (D) if the target first safety test opening degree meets the safe starting condition, then in the load test environment, perform the following fifth test process: control the inlet motorized valve to remain at the target first safety test opening degree, and control the exhaust motorized valve of the oxidation blower system to close from the maximum opening degree to the fully closed state, so as to determine the final safe opening degree of the inlet motorized valve according to the operation data of the oxidation blower at the target first safety test opening degree.

[0009] In a possible implementation manner, step (D) includes: (D1) in the load test environment, perform the second test process, and determine whether the target first safety test opening degree meets the safe starting condition according to the operation data of the oxidation blower at the target first safety test opening degree; (D2) if the target first safety test opening degree does not meet the safe starting condition, then determine the final safe opening degree of the inlet motorized valve according to the remaining first safety test opening degrees in the first safety opening degree set; (D3) if the target first safety test opening degree meets the safe starting condition, then determine the target first safety test opening degree as the final safe opening degree of the inlet motorized valve.

[0010] In a possible implementation, step (D2) includes: (D21) removing the target first safety test opening degree that does not meet the safe start condition from the first safety opening degree set, and determining whether the first safety opening degree set is empty; (D22) if the first safety opening degree set is not empty, returning to step (A); (D23) if the first safety opening degree set is empty, determining that the oxidation blower cannot be safely started.

[0011] In a possible implementation, the method further includes: if the first safety opening degree set is empty, determining that the oxidation blower cannot be safely started.

[0012] In a second aspect, the present application provides a test device for an oxidation blower system. The device includes: a first construction module for constructing an atmospheric test environment, where the atmospheric test environment includes connecting the inlet and the outlet of the oxidation blower of the oxidation blower system to the atmospheric environment respectively; a first test module for performing the following first test process in the atmospheric test environment: controlling the inlet electric door of the oxidation blower system to act according to each test opening degree in the opening degree set, and screening out a plurality of first safety test opening degrees from the plurality of test opening degrees to form a first safety opening degree set according to the first operation data of the oxidation blower at each test opening degree, where the inlet electric door is arranged at the inlet of the oxidation blower; a second construction module for constructing a no-load test environment, where the no-load test environment includes connecting one end of the branch pipe outlet of the oxidation blower system to the absorption tower in a no-load state, and connecting the other end of the branch pipe outlet to the outlet of the oxidation blower; a second test module for performing the following second test process in the no-load test environment: controlling the inlet electric door to remain at the first safety test opening degree according to each first safety test opening degree, and controlling the exhaust electric door of the oxidation blower system to close from the maximum opening degree to the fully closed state, so as to determine whether the first safety test opening degree is retained according to the second operation data of the oxidation blower at the first safety test opening degree, where the exhaust electric door is arranged at the outlet of the oxidation blower; a determination module for determining the final safety opening degree of the inlet electric door according to all the retained first safety test opening degrees.

[0013] In a third aspect, the present application further provides an electronic device, including: a processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the electronic device runs, the processor communicates with the memory through the bus. When the machine-readable instructions are executed by the processor, the steps of the above method are executed.

[0014] In a fourth aspect, the present application further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is run by a processor, the steps of the above method are executed.

[0015] The present application provides a test method, device, electronic device and medium for an oxidation blower system. Among them, the method includes: building an atmospheric test environment; controlling the inlet motorized valve of the oxidation blower system to act according to each test opening degree in the opening degree set, screening out multiple first safety test opening degrees from multiple test opening degrees to form a first safety opening degree set, and the inlet motorized valve is arranged at the inlet of the oxidation blower; building a no-load test environment; controlling the inlet motorized valve to remain at each first safety test opening degree, and controlling the evacuation motorized valve of the oxidation blower system to close from the maximum opening degree to the fully closed state, and determining the final safety opening degree of the inlet motorized valve according to all the remaining first safety test opening degrees. By building multiple test environments and gradually determining the final safety opening degree of the inlet motorized valve, the present application effectively guarantees the starting safety of the oxidation blower, and reduces component damage problems such as the oxidation blower being stuck due to the opening degree of the inlet motorized valve not meeting the safety requirements.

[0016] To make the above objects, features and advantages of the present application more obvious and understandable, the following specifically enumerates preferred embodiments and, in conjunction with the accompanying drawings, makes the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0018] Figure 1 Schematic diagram of the performance curve of the centrifugal oxidation blower provided by the embodiment of the present application;

[0019] Figure 2 Flowchart of a test method for an oxidation blower system provided by the embodiment of the present application;

[0020] Figure 3 Schematic diagram of the structure of the atmospheric test environment provided by the embodiment of the present application;

[0021] Figure 4 Schematic diagram of the structure of the no-load test environment provided by the embodiment of the present application;

[0022] Figure 5 Flowchart of determining the final safety opening degree provided by the embodiment of the present application;

[0023] Figure 6 Schematic diagram of the structure of the load test environment provided by the embodiment of the present application;

[0024] Figure 7 Flow chart of another test method for the oxidation blower system provided by the embodiments of the present application;

[0025] Figure 8 Structural schematic diagram of the test device for the oxidation blower system provided by the embodiments of the present application;

[0026] Figure 9 Structural schematic diagram of an electronic device provided by the embodiments of the present application. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Usually, the components of the embodiments of the present application described and illustrated herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application to be protected, but only represents the selected embodiments of the present application. Based on the embodiments of the present application, every other embodiment obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0028] First, the applicable application scenarios of the present application are introduced. The present application can be applied to the wet flue gas desulfurization technology.

[0029] The oxidation blower is one of the typical equipment in the SO2 absorption system of the limestone-gypsum wet flue gas desulfurization device. The main function of the oxidation blower is to realize the oxidation of tetravalent sulfur (S IV ) in the slurry system, specifically referring to the oxidation of bisulfite (HSO3 - ) to sulfate (SO4 2- ), as shown in the following formula. On the one hand, the oxidation of tetravalent sulfur can prevent the large formation of calcium sulfite and cause scaling in the absorption system. On the other hand, it can promote the formation of calcium sulfate dihydrate crystals (CaSO4·2H2O), thereby realizing the dehydration of by-products.

[0030]

[0031] The centrifugal oxidation blower belongs to one type of oxidation blower. The centrifugal oxidation blower system is composed of the oxidation blower body and the oxidation air pipe network, and mainly includes an inlet pipeline filter silencer, an inlet electric valve (hereinafter referred to as the "inlet valve"), an inlet pipeline, the oxidation blower body, an outlet pipeline, an exhaust electric valve (hereinafter referred to as the "exhaust valve"), an exhaust silencer, an outlet check valve, an outlet pipeline and branches.

[0032] According to the performance characteristics of centrifugal fans, theoretically, the performance curve of centrifugal oxidation fans belongs to the "inverted parabola" type. As Figure 1 shown, the actual operating curve only has the right side (where the flow rate is greater than QA), while the left side (where the flow rate is less than QA) is the unstable operating area, which is not reflected in actual oxidation fans.

[0033] When starting the oxidation fan, the larger the flow rate (usually manifested as the larger the opening of the inlet door), the more conducive it is for the oxidation fan to quickly enter the stable area (similar to Figure 1 the area where the flow rate is greater than QA), otherwise, a small starting flow rate will cause problems such as surging in the unstable area). Therefore, at this time, it is hoped that the inlet door of the oxidation fan is opened wider when starting. As the flow rate increases, the power shows a positive correlation increase trend, that is, in actual operation, the larger the flow rate, the larger the current. It can be seen from this that when starting the oxidation fan, the smaller the flow rate (usually manifested as the smaller the opening of the inlet door), the more conducive it is to reduce the starting current (or the starting current is farther from the electrical setting current value), and the safer the oxidation fan is. Therefore, at this time, it is hoped that the inlet door is opened smaller when starting.

[0034] In summary, when the opening of the inlet door is larger during startup, the oxidation fan can quickly enter the safe area. However, if the opening of the inlet electric door is too large, it may cause too high a starting current and pose an unsafe problem. Therefore, it is particularly important to select a reasonable opening of the electric door during the startup stage. In actual operation, for newly built oxidation fans, usually the equipment manufacturer provides guidance on the opening of the inlet door during startup, and the operating personnel perform the startup operation of the oxidation fan according to this opening. As the operation time of the oxidation fan increases, the performance of the oxidation fan gradually decays. If the oxidation fan is still started according to the opening of the inlet door of the new oxidation fan, problems such as surging or exceeding the safety requirements of the starting current may occur, which may further cause damage to the components of the oxidation fan and is not conducive to the safe and stable operation of the desulfurization system.

[0035] Based on this, the embodiments of the present application provide a test method, device, electronic device and medium for an oxidation fan system, so as to propose a test method for determining the safe startup inlet door opening of a centrifugal oxidation fan from three test environments: the atmospheric test, no-load test and load test of the oxidation fan.

[0036] Please refer to Figure 2 , Figure 2 which is the flow chart of a test method for an oxidation fan system provided by the embodiments of the present application. As shown in Figure 2 the test method for the oxidation fan system provided by the embodiments of the present application includes:

[0037] S101. Build an atmospheric test environment.

[0038] As Figure 3As shown, for the atmospheric test environment, the filter silencer, the inlet door, the oxidation blower body, and the outlet pipeline need to be removed from the oxidation blower system to form an independent system, that is, the inlet and outlet of the oxidation blower are connected to the atmospheric environment.

[0039] Here, the atmospheric test environment includes connecting the inlet and outlet of the oxidation blower of the oxidation blower system to the atmospheric environment respectively.

[0040] S102. Under the atmospheric test environment, perform the following first test process: According to each test opening degree in the opening degree set, control the inlet electric door of the oxidation blower system to act, and based on the first operation data of the oxidation blower at each test opening degree, screen out multiple first safety test opening degrees from multiple test opening degrees to form a first safety opening degree set.

[0041] Here, the opening degree set is all the opening degrees (0 - 100%) of the inlet electric door. When gradually increasing the opening degree of the inlet door, select the opening degrees of the inlet door that meet the safety requirements, and arrange them in ascending order of the opening degree of the inlet door: k1, k2,..., k n 。

[0042] In a preferred example of the present application, the operation data includes the starting current value and the current fluctuation coefficient. Among them, the following method is used to screen out multiple first safety test opening degrees from multiple test opening degrees to form a first safety opening degree set:

[0043] According to the starting current value and the current fluctuation coefficient of the oxidation blower at each test opening degree, determine whether the test opening degree meets the safe starting condition. The safe starting condition indicates that the duration of the oxidation blower system in the early warning state is less than the set duration. The early warning state includes that the starting current value of the oxidation blower system is greater than the current threshold and / or the current fluctuation coefficient is greater than the fluctuation threshold;

[0044] Determine the test opening degree that meets the safe starting condition as the first safety test opening degree to form a first safety opening degree set.

[0045] As an example, (1) The starting current of the oxidation blower does not exceed the setting value requirement. For example, the rated current is 60A, the current setting value is 220A, and the safety requirement is that when the starting current reaches 200A, it is delayed for 3s (if this requirement is exceeded, the oxidation blower is set to automatically shut down).

[0046] (2) The current fluctuation coefficient does not exceed the set value. The current fluctuation coefficient refers to the increase or decrease amplitude of the actual operating current per unit time. For example, when the opening degree of the inlet door of the oxidation blower is too small during startup, the blower enters the unstable area, resulting in a surge phenomenon, which is characterized by the current fluctuation coefficient. It is set that when the fluctuation coefficient exceeds 10A / S, it is delayed for 3s (if this requirement is exceeded, the oxidation blower is set to automatically shut down).

[0047] Specifically, it can be understood by the following formula.

[0048]

[0049] In the formula, σ is the current fluctuation coefficient, A / s;

[0050] I1 and I2 are the actual operating currents of the oxidation blower at the start and end, A;

[0051] t1 and t2 are the operating times of the oxidation blower at the start and end, s;

[0052] The start-up of the oxidation blower satisfies the following hydrodynamics principle: taking the working medium (air) from the filter inlet to the oxidation blower outlet as the research object, the Bernoulli equation (in accordance with the energy equation of one-dimensional compressible fluid) is established for a small time period (or time element) during the start-up stage:

[0053]

[0054] In the formula, γ is the isentropic exponent;

[0055] ρ1 and ρ2 are the gas densities at the filter inlet and oxidation blower outlet positions, kg / m 3 ;

[0056] p1 and p2 are the absolute pressures of the gas at the filter inlet and oxidation blower outlet positions, Pa;

[0057] ν1 and v2 are the gas flow velocities at the filter inlet and oxidation blower outlet positions, m / s;

[0058] —The work per unit mass of the air input by the oxidation blower, J / kg.

[0059] ζ tot —The sum of the resistance coefficients from the filter inlet to the oxidation blower outlet section.

[0060] As an example, under atmospheric testing, the following formula can be used to assist in understanding that the larger the flow rate, the larger the starting current. Under this condition, p2 = p1, ρ2 = ρ1, v1 = 0, then the work per unit mass input by the oxidation blower is all used to overcome the resistance and increase the kinetic energy of the outlet air, that is:

[0061]

[0062] Let k i (i = 1, 2,... n) represent the opening degree of the inlet door, and the inlet door opening degree is increased successively for testing.

[0063] In a preferred example of this application, if the operating data of the oxidation blower at all tested opening degrees do not meet the safe startup conditions, it is determined that the first set of safe opening degrees is empty, and it is determined that the oxidation blower cannot be safely started.

[0064] S103. Build an unloaded test environment.

[0065] Here, the unloaded test environment includes connecting the branch pipe outlet of the oxidation blower system to the absorption tower in an unloaded state, and the drain electric valve is arranged at the outlet of the oxidation blower. As Figure 4 shown, the oxidation blower system enters the absorption tower, but the absorption tower at the branch pipe outlet is in a state without liquid level, that is, the branch pipe outlet is in contact with the air in the absorption tower.

[0066] S104. In the unloaded test environment, perform the following second test process: According to each first safe test opening degree, control the inlet electric valve to remain at this first safe test opening degree, and control the drain electric valve of the oxidation blower system from the maximum opening degree to full closure, so as to determine whether this first safe test opening degree is retained according to the second operating data of the oxidation blower at this first safe test opening degree, and determine each retained first safe test opening degree as the second safe test opening degree to form a second set of safe opening degrees.

[0067] Specifically, in the unloaded test environment, at this time, let p ′ 2 = p2 - p1, and ρ2 = ρ1 (the density is basically unchanged at the moment of startup), v1 = 0, then all the work input per unit mass of the oxidation blower is used to overcome the resistance, the kinetic energy and pressure energy (gauge pressure) of the outlet air, that is:

[0068]

[0069] In the formula, γ - isentropic index;

[0070] p ′ 2 - gauge pressure of the gas at the outlet position of the oxidation blower, Pa;

[0071] v1, v2 - gas flow velocities at the inlet of the filter and the outlet position of the oxidation blower, m / s;

[0072] — work input per unit mass of air into the oxidation blower, J / kg.

[0073] ζ tot — sum of resistance coefficients from the inlet of the filter to the outlet of the oxidation blower.

[0074] Let P i (i = 1, 2,... n) represent the opening degree of the drain valve. Determine the maximum inlet valve opening degree k n in step S102. When the opening degree of the drain valve is 100% working condition, start the oxidation blower.

[0075] In a preferred example of the present application, if the operation data of the oxidation blower at all the first safety test opening degrees do not meet the safe start-up conditions, it is determined that all the first safety test opening degrees are not retained, and it is determined that the oxidation blower cannot be safely started.

[0076] S105. Determine the final safety opening degree of the inlet motorized valve according to each second safety test opening degree in the second safety opening degree set.

[0077] The following introduces the specific process of determining the final safety opening degree of the inlet motorized valve.

[0078] Figure 5 It is a flowchart for determining the final safety opening degree provided by the embodiment of the present application.

[0079] S201. Build a load test environment.

[0080] Here, the load test environment includes connecting the branch outlet of the oxidation blower system to the absorption tower under load conditions. As Figure 6 shown, connect the oxidation blower system to the absorption tower and keep the liquid level in the slurry pool of the absorption tower at the actual operation liquid level.

[0081] S202. Under the load test environment, perform the following third test process: According to each second safety test opening degree, control the inlet motorized valve to remain at this second safety test opening degree, and control the drain motorized valve of the oxidation blower system to close from the maximum opening degree to the fully closed state, so as to determine whether this second safety test opening degree is retained according to the third operation data of the oxidation blower at this second safety test opening degree.

[0082] S203. Determine the final safety opening degree of the inlet motorized valve from all the retained second safety test opening degrees.

[0083] As an example, in step 2, determine the maximum inlet valve opening degree k n or k ′ n , under the condition that the drain valve opening degree is 100%, start the oxidation blower. Determine several inlet valve opening degrees k i =0 and the starting current is safe when the drain valve opening degree is adjusted from 100% to P j (k j＝ k n or k ′ 1≤k j ≤k ′ n ), in the ascending order of the inlet valve opening degree: k ″ 1, k ″ 2,..., k ″ n .

[0084] At this point, when the oxidation blower system is started again, the oxidation blower can be started according to the opening degree k of the inlet door ″ 1. k ″ 2. …, k ″ n , and the opening degree P of the exhaust valve n = 100% for starting, or when the oxidation blower system is started again, the oxidation blower can be started according to the maximum opening degree k of the inlet door ″ n , and the opening degree P of the exhaust valve n = 100% for starting.

[0085] In a preferred example of the present application, if the operation data of the oxidation blower at all the reserved first safety test opening degrees do not meet the safe start-up conditions, it is determined that the oxidation blower cannot be safely started.

[0086] In a preferred example of the present application, Figure 7 is a flowchart of another test method for the oxidation blower system provided by the embodiment of the present application.

[0087] S301. Determine the target first safety test opening degree in the first safety opening degree set.

[0088] Here, the target first safety test opening degree is the one with the largest opening degree in the first safety opening degree set.

[0089] S302. In the no-load test environment, perform the following fourth test process: control the inlet electric door to remain at the target first safety test opening degree, and control the exhaust electric door of the oxidation blower system to close from the maximum opening degree to fully closed, so as to determine whether the target first safety test opening degree meets the safe start-up conditions according to the fourth operation data of the oxidation blower at the target first safety test opening degree.

[0090] S303. If the target first safety test opening degree does not meet the safe start-up conditions, remove the target first safety test opening degree from the first safety opening degree set, and return to step S301.

[0091] Here, after removing the target first safety test opening degree from the first safety opening degree set, re-select the opening degree with the largest opening degree in the first safety opening degree set after the removal.

[0092] S304. If the first target first safety test opening degree meets the safe start-up conditions, in the load test environment, perform the second test process, and determine the final safe opening degree of the inlet electric door according to the operation data of the oxidation blower at the first target first safety test opening degree.

[0093] In a preferred example of the present application, step S304 includes:

[0094] S3041. Under the load test environment, perform the second test process. According to the operation data of the oxidation blower at the target first safety test opening, determine whether the target first safety test opening meets the safe start condition.

[0095] S3042. If the target first safety test opening does not meet the safe start condition, determine the final safe opening of the inlet motorized valve according to the remaining first safety test openings in the first safety opening set.

[0096] S30432. If the target first safety test opening meets the safe start condition, determine the target first safety test opening as the final safe opening of the inlet motorized valve.

[0097] Specifically, S3042 includes:

[0098] S30421: Remove the target first safety test opening that does not meet the safe start condition from the first safety opening set, and determine whether the first safety opening set is empty.

[0099] If the first safety opening set is not empty, return to step S301.

[0100] If the first safety opening set is empty, perform step S3044: Determine that the oxidation blower cannot be safely started.

[0101] In this way, the final safe opening of the inlet motorized valve can be determined more quickly.

[0102] Example 1.

[0103] A certain centrifugal oxidation blower, with a rated flow rate of 16443 m3 / h, a pressure rise of 85 kPa, a motor power of 630 kW, and a rated current of 65 A.

[0104] The safe start conditions are: (1) Starting current setting requirement - starting current 200 A, delay 3 s.

[0105] (2) Starting current fluctuation coefficient - the starting current fluctuation coefficient exceeds ±10 A / S, delay 3 s.

[0106] The data of (.) in the following table are all negative values.

[0107] 1. No-load atmospheric test

[0108]

[0109]

[0110] The opening degrees of the inlet door that meet the start-up safety requirements are in ascending order: 5%, 8%, 10%, 12%, 15%, 18%; the 18% opening of the inlet door is used as the initial condition for Step 2.

[0111] 2. No-load exhaust door opening test

[0112]

[0113]

[0114]

[0115] The opening degrees of the inlet door that meet the start-up safety requirements are in ascending order: 10%, 12%, 15%, 18%.

[0116] 3. Actual load test

[0117]

[0118]

[0119] Therefore, the start-up method of this oxidation blower: the opening degree of the inlet door is 15% or 18%, the opening degree of the exhaust door is 100%, and after normal operation after start-up, the exhaust door is closed, that is, the opening degree is 0%, and the opening degree of the inlet door is adjusted according to the back pressure situation.

[0120] Based on the same inventive concept, an oxidation blower system test device corresponding to the oxidation blower system test method is also provided in the embodiments of the present application. Since the principle of solving problems by the device in the embodiments of the present application is similar to the above oxidation blower system test method in the embodiments of the present application, the implementation of the device can refer to the implementation of the method, and the repeated parts will not be described again.

[0121] Please refer to Figure 8 Figure 8 For the structural schematic diagram of the oxidation blower system test device provided in the embodiments of the present application, the oxidation blower system test device 400 includes:

[0122] The first building module 401 is used to build an atmospheric test environment, and the atmospheric test environment includes connecting the inlet of the oxidation blower of the oxidation blower system and the outlet of the oxidation blower to the atmospheric environment respectively.

[0123] The first test module 402 is configured to perform the following first test process in the atmospheric test environment: according to each test opening degree in the set of opening degrees, control the inlet motorized valve of the oxidation blower system to act, and screen out multiple first safety test opening degrees from the multiple test opening degrees to form a first set of safety opening degrees according to the first operation data of the oxidation blower at each test opening degree, where the inlet motorized valve is arranged at the inlet of the oxidation blower.

[0124] The second construction module 403 is configured to construct a no-load test environment, where the no-load test environment includes connecting the branch outlet of the oxidation blower system to the absorption tower in a no-load state.

[0125] The second test module 404 is configured to perform the following second test process in the no-load test environment: according to each first safety test opening degree, control the inlet motorized valve to remain at the first safety test opening degree, and control the evacuation motorized valve of the oxidation blower system to close from the maximum opening degree to the fully closed state, so as to determine whether the first safety test opening degree is retained according to the second operation data of the oxidation blower at the first safety test opening degree, where the evacuation motorized valve is arranged at the outlet of the oxidation blower.

[0126] The determination module 405 is configured to determine the final safety opening degree of the inlet motorized valve according to all the retained first safety test opening degrees.

[0127] Please refer to Figure 9 , Figure 9 , which is a schematic structural diagram of an electronic device provided by an embodiment of the present application. As Figure 9 shown in , the electronic device 500 includes a processor 510, a memory 520, and a bus 530.

[0128] The memory 520 stores machine-readable instructions executable by the processor 510. When the electronic device 500 runs, the processor 510 communicates with the memory 520 through the bus 530. When the machine-readable instructions are executed by the processor 510, the steps of the test method of the oxidation blower system in the above method embodiment can be executed. The specific implementation manner can refer to the method embodiment and will not be elaborated here.

[0129] An embodiment of the present application further provides a computer-readable storage medium. A computer program is stored on the computer-readable storage medium. When the computer program is run by a processor, the steps of the test method of the oxidation blower system in the above method embodiment can be executed. The specific implementation manner can refer to the method embodiment and will not be elaborated here.

[0130] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0131] In several embodiments provided in the present application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there may be other division methods in actual implementation. For another example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some communication interfaces. The indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms.

[0132] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0133] In addition, in each embodiment of the present application, the functional units can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit.

[0134] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a non-volatile computer-readable storage medium executable by a processor. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art or part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of the present application. The foregoing storage medium includes: various media that can store program codes such as USB flash drives, mobile hard disks, read-only memories (ROMs), random access memories (RAMs), magnetic disks, or optical discs.

[0135] Finally, it should be noted that the above-described embodiments are only specific embodiments of the present application, which are used to illustrate the technical solutions of the present application, rather than limiting it. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that any person skilled in the art within the technical scope disclosed by the present application can still modify the technical solutions described in the foregoing embodiments, or can easily think of changes, or perform equivalent replacements on some of the technical features; and these modifications, changes or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A test method for an oxidation blower system, characterized in that, The method includes: Constructing an atmospheric test environment, where the atmospheric test environment includes connecting the inlet and the outlet of the oxidation blower of the oxidation blower system to the atmospheric environment respectively; Under the atmospheric test environment, performing the following first test process: According to each test opening degree in the set of opening degrees, controlling the inlet electric valve of the oxidation blower system to act, and screening out a plurality of first safety test opening degrees from the plurality of test opening degrees to form a first safety opening degree set according to the first operation data of the oxidation blower at each test opening degree, where the inlet electric valve is arranged at the inlet of the oxidation blower; Constructing an unloaded test environment, where the unloaded test environment includes connecting one end of the branch pipe outlet of the oxidation blower system to the absorption tower in an unloaded state, and connecting the other end of the branch pipe outlet to the outlet of the oxidation blower; Under the unloaded test environment, performing the following second test process: According to each first safety test opening degree, controlling the inlet electric valve to remain at this first safety test opening degree, and controlling the exhaust electric valve of the oxidation blower system to close from the maximum opening degree to the fully closed state, so as to determine whether this first safety test opening degree is retained according to the second operation data of the oxidation blower at this first safety test opening degree, and determining each retained first safety test opening degree as a second safety test opening degree to form a second safety opening degree set, where the exhaust electric valve is arranged at the outlet of the oxidation blower; Determining the final safety opening degree of the inlet electric valve according to each second safety test opening degree in the second safety opening degree set.

2. The method according to claim 1, wherein Determining the final safety opening degree of the inlet electric valve in the following way: Constructing a load test environment, where the load test environment includes connecting the branch pipe outlet of the oxidation blower system to the absorption tower in a loaded state; Under the load test environment, performing the following third test process: According to each second safety test opening degree, controlling the inlet electric valve to remain at this second safety test opening degree, and controlling the exhaust electric valve of the oxidation blower system to close from the maximum opening degree to the fully closed state, so as to determine whether this second safety test opening degree is retained according to the third operation data of the oxidation blower at this second safety test opening degree; Determining the final safety opening degree of the inlet electric valve from all the retained second safety test opening degrees.

3. The method according to claim 1, wherein The first operation data includes the starting current value and the current fluctuation coefficient. Wherein, screening out a plurality of first safety test opening degrees from the plurality of test opening degrees to form a first safety opening degree set in the following way: Determining whether the oxidation blower system meets the safe start condition at this test opening degree according to the starting current value and the current fluctuation coefficient of the oxidation blower at each test opening degree, where the safe start condition indicates that the duration of the oxidation blower system in the warning state is less than the set duration, and the warning state includes that the starting current value of the oxidation blower system is greater than the current threshold and / or the current fluctuation coefficient is greater than the fluctuation threshold; Determining the test opening degree that meets the safe start condition as the first safety test opening degree to form the first safety opening degree set.

4. The method according to claim 2, wherein The method further includes: (A) Determine the target first safety test opening degree in the first safety opening degree set; (B) In the no-load test environment, perform the following fourth test process: control the inlet motorized valve to remain at the target first safety test opening degree, and control the vent motorized valve of the oxidation blower system to close from the maximum opening degree to fully closed, so as to determine whether the target first safety test opening degree meets the safe start condition according to the fourth operation data of the oxidation blower at the target first safety test opening degree; (C) If the target first safety test opening degree does not meet the safe start condition, remove this target first safety test opening degree from the first safety opening degree set, and return to step (A); (D) If the target first safety test opening degree meets the safe start condition, in the load test environment, perform the following fifth test process: control the inlet motorized valve to remain at the target first safety test opening degree, and control the vent motorized valve of the oxidation blower system to close from the maximum opening degree to fully closed, so as to determine the final safety opening degree of the inlet motorized valve according to the operation data of the oxidation blower at the target first safety test opening degree.

5. The method according to claim 4, characterized in that, Step (D) includes: (D1) In the load test environment, perform the second test process, and determine whether the target first safety test opening degree meets the safe start condition according to the operation data of the oxidation blower at the target first safety test opening degree; (D2) If the target first safety test opening degree does not meet the safe start condition, determine the final safety opening degree of the inlet motorized valve according to the remaining first safety test opening degrees in the first safety opening degree set; (D3) If the target first safety test opening degree meets the safe start condition, determine the target first safety test opening degree as the final safety opening degree of the inlet motorized valve.

6. The method according to claim 5, characterized in that, Step (D2) includes: (D21) Remove the target first safety test opening degree that does not meet the safe start condition from the first safety opening degree set, and determine whether the first safety opening degree set is empty; (D22) If the first safety opening degree set is not empty, return to step (A); (D23) If the first safety opening degree set is empty, determine that the oxidation blower cannot be safely started.

7. The method according to claim 1, wherein The method further includes: If the first safety opening degree set is empty, determine that the oxidation blower cannot be safely started.

8. A test device for an oxidation blower system, characterized in that The device includes: The first building module is used to build an atmospheric test environment, and the atmospheric test environment includes connecting the inlet and the outlet of the oxidation blower of the oxidation blower system to the atmospheric environment respectively; The first test module is used to perform the following first test process in the atmospheric test environment: according to each test opening degree in the opening degree set, control the inlet motorized valve of the oxidation blower system to act, and screen out multiple first safety test opening degrees from multiple test opening degrees to form a first safety opening degree set according to the first operation data of the oxidation blower at each test opening degree, and the inlet motorized valve is arranged at the inlet of the oxidation blower; A second building module, configured to build an unloaded test environment, where the unloaded test environment includes connecting one end of the branch pipe outlet of the oxidation blower system to the absorption tower in an unloaded state, and connecting the other end of the branch pipe outlet to the outlet of the oxidation blower; A second test module, configured to perform the following second test process in the unloaded test environment: according to each first safety test opening degree, control the inlet motorized valve to maintain at this first safety test opening degree, and control the evacuation motorized valve of the oxidation blower system to close from the maximum opening degree to the fully closed state, so as to determine whether to retain this first safety test opening degree according to the second operation data of the oxidation blower at this first safety test opening degree, where the evacuation motorized valve is arranged at the outlet of the oxidation blower; A determination module, configured to determine the final safety opening degree of the inlet motorized valve according to all the retained first safety test opening degrees.

9. An electronic device, characterized in that, Comprising: A processor, a memory and a bus, where the memory stores machine-readable instructions executable by the processor. When the electronic device runs, the processor communicates with the memory through the bus, and the processor executes the machine-readable instructions to perform the steps of the method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, A computer program is stored on the computer-readable storage medium, and when the computer program is run by the processor, it executes the steps of the method according to any one of claims 1 to 7.

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