Ash conveying system of generator set

Abstract

The utility model relates to an ash conveying system of a generator set. The system comprises a first conveying end, a second conveying end, a first ash conveying pipeline and a second ash conveying pipeline, the first transmission end comprises an electric field A side, an economizer A side and an economizer B side; the second transmission end comprises an electric field side B, a denitration side A, a denitration side B, an air pre-heater side A and an air pre-heater side B; the first ash conveying pipeline is respectively connected with the electric field side A, the economizer side A and the economizer side B in the first conveying end; the second ash conveying pipeline is respectively connected with the electric field side B, the denitration side A, the denitration side B, the air pre-heater side A and the air pre-heater side B in the second conveying end; the first ash conveying pipeline is used for conveying ash to the first conveying end; the second ash conveying pipeline is used for conveying ash to the second conveying end; by means of the technical scheme, partition ash conveying of the electric field can be achieved, and the operation cost and the energy consumption of the ash conveying system are reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of equipment control, and in particular, to an ash conveying system of a generator set. Background Art

[0002] The operating load of the generator set varies greatly, and the ash conveying system of the generator set is required to adjust the ash conveying amount according to different operating loads to cope with the changes in the operating load.

[0003] In the related art, the ash conveying amount of the ash conveying system needs to be adjusted by starting and stopping the ash conveying equipment. However, long-term and frequent starting and stopping of the ash conveying equipment will significantly reduce the life of the equipment and affect the overall operating efficiency of the generator set. Utility Model Content

[0004] An object of the present disclosure is to provide an ash conveying system for a generator set.

[0005] In order to achieve the above object, the present disclosure provides an ash conveying system for a generator set, the system comprising:

[0006] A first transmission end, a second transmission end, a first ash conveying pipeline and a second ash conveying pipeline; the first transmission end includes an electric field A side, an economizer A side and an economizer B side; the second transmission end includes an electric field B side, a denitration A side, a denitration B side, an air preheater A side and an air preheater B side; the first ash conveying pipeline is respectively connected to the electric field A side, the economizer A side and the economizer B side in the first transmission end; the second ash conveying pipeline is respectively connected to the electric field B side, the denitration A side, the denitration B side, the air preheater A side and the air preheater B side in the second transmission end;

[0007] The first ash conveying pipeline is used to convey ash to the first transmission end;

[0008] The second ash conveying pipeline is used to convey ash to the second transmission end.

[0009] Optionally, the system further comprises a controller; the controller is respectively connected to the first ash conveying pipeline and the second ash conveying pipeline;

[0010] The controller is used to control the first ash conveying pipeline and the second ash conveying pipeline to convey ash alternately.

[0011] Optionally, the system further comprises a pressure sensor; the pressure sensor is respectively connected to the first transmission end, the second transmission end and the controller;

[0012] The pressure sensor is used to collect a first pressure value of the first transmission end and a second pressure value of the second transmission end; and send the first pressure value and the second pressure value to the controller;

[0013] The controller is used to control the first ash conveying pipeline and the second ash conveying pipeline to convey ash alternately based on a control signal triggered by the first pressure value or the second pressure value.

[0014] Optionally, the controller includes a comparator and a processor; the comparator is connected to the pressure sensor and the processor respectively; the processor is connected to the first ash conveying pipeline and the second ash conveying pipeline respectively;

[0015] The comparator is used to compare the first pressure value, the second pressure value and a preset pressure threshold to obtain a first comparison result; and generate the control signal based on the first comparison result;

[0016] The processor is used for controlling the first ash conveying pipeline and the second ash conveying pipeline to convey ash alternately in response to the control signal generated by the comparator.

[0017] Optionally, the comparator is used to obtain the first comparison result when the first pressure value is less than or equal to the preset pressure threshold; and generate the control signal based on the first comparison result;

[0018] The processor is used for controlling the first ash conveying pipeline to stop conveying ash to the first transmission end, and controlling the second ash conveying pipeline to convey ash to the second transmission end in response to the control signal.

[0019] Optionally, the comparator is used to obtain the first comparison result when the second pressure value is less than or equal to the preset pressure threshold; and generate the control signal based on the first comparison result;

[0020] The processor is used for controlling the second ash conveying pipeline to stop conveying ash to the second transmission end, and controlling the first ash conveying pipeline to convey ash to the first transmission end in response to the control signal.

[0021] Optionally, the second transmission end includes a deNOx transmission end and an air preheater transmission end; the deNOx transmission end includes the electric field B side, the deNOx A side and the deNOx B side; the air preheater transmission end includes the electric field B side, the air preheater A side and the air preheater B side; the second pressure value includes the pressure value of the deNOx transmission end or the pressure value of the air preheater transmission end.

[0022] Optionally, the comparator is used to obtain the first comparison result when the pressure value at the denitration transmission end is less than or equal to the preset pressure threshold; and generate the control signal based on the first comparison result; or,

[0023] When the pressure value at the transmission end of the air preheater is less than or equal to the preset pressure threshold, the first comparison result is obtained; and based on the first comparison result, the control signal is generated.

[0024] Optionally, the processor is used to control the second ash conveying pipeline to alternately convey ash to the denitrification transmission end and the air preheater transmission end in response to the control signal.

[0025] Optionally, the processor is used to control the second ash conveying pipeline to alternately convey ash to the denitrification transmission end and the air preheater transmission end according to a preset time length.

[0026] Optionally, the comparator is further used to compare the operating load of the generator set with a preset load threshold to obtain a second comparison result; and generate the control signal based on the first comparison result and the second comparison result.

[0027] Optionally, the comparator is further used to generate a gray conveying control signal based on the second comparison result;

[0028] The processor is further configured to control the first ash conveying pipeline and the second ash conveying pipeline to convey ash simultaneously in response to the ash conveying control signal generated by the comparator.

[0029] Through the above technical scheme, the ash transportation between the A side of the electric field and the A side of the economizer and the B side of the economizer can be carried out through the first ash transportation pipeline, and the B side of the electric field and the A side of the air preheater, the B side of the air preheater, the A side of the denitrification and the B side of the denitrification can be carried out through the second ash transportation pipeline. By adjusting the connecting equipment of the ash transportation pipeline, the zoned ash transportation of the electric field is realized, which reduces the operating cost and energy consumption of the ash transportation system and improves the operating efficiency of the ash transportation system.

[0030] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. The accompanying drawings are as follows.

[0032] Figure 1 The figure is a block diagram of an ash conveying system of a generator set according to an exemplary embodiment.

[0033] Figure 2 is based on Figure 1 A block diagram of an ash conveying system for a generator set is shown in an exemplary embodiment.

[0034] Figure 3 is based on Figure 2 A block diagram of an ash conveying system for a generator set is shown in an exemplary embodiment.

[0035] Figure 4 is based on Figure 3 A block diagram of an ash conveying system for a generator set is shown in an exemplary embodiment.

[0036] Figure 5 is based on Figure 4 A block diagram of an ash conveying system for a generator set is shown in an exemplary embodiment. DETAILED DESCRIPTION

[0037] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0038] First, the application scenario of the present disclosure is introduced. The present disclosure is applied in the scenario of ash conveying of a generator set. For example, the generator set can be a thermal power unit. In a power plant, the operating load of the generator set varies greatly, and the ash conveying system of the generator set needs to adjust the ash conveying amount according to different operating loads to cope with the changes in the operating load. When the generator set is running at high load, it is necessary to operate multiple ash conveying equipment to meet the high ash conveying amount corresponding to the high load. However, when the generator set is running at low load, multiple ash conveying equipment will continue to run, resulting in excess energy. It can be seen that it is necessary to adjust the ash conveying amount of the ash conveying system by adjusting the number of running ash conveying equipment, but long-term frequent start and stop of ash conveying equipment will greatly reduce the life of the equipment and affect the overall operating efficiency of the generator set.

[0039] In order to solve the above problems, the present disclosure provides an ash conveying system for a generator set; the system comprises: a first transmission end, a second transmission end, a first ash conveying pipeline and a second ash conveying pipeline; the first transmission end comprises an electric field A side, an economizer A side and an economizer B side; the second transmission end comprises an electric field B side, a denitrification A side, a denitrification B side, an air preheater A side and an air preheater B side; the first ash conveying pipeline is respectively connected to the electric field A side, the economizer A side and the economizer B side in the first transmission end; the second ash conveying pipeline is respectively connected to the electric field B side, the denitrification A side, the denitrification B side, the air preheater A side and the air preheater B side in the second transmission end The A side of the air preheater is connected to the B side of the air preheater; the first ash conveying pipe is used to convey ash to the first transmission end; the second ash conveying pipe is used to convey ash to the second transmission end; through the above technical scheme, the A side of the electric field can be connected to the A side of the economizer and the B side of the economizer through the first ash conveying pipe for ash conveying, and the B side of the electric field can be connected to the A side of the air preheater, the B side of the air preheater, the A side of the denitrification and the B side of the denitrification through the second ash conveying pipe for ash conveying, and by adjusting the connecting equipment of the ash conveying pipes, the zoned ash conveying of the electric field is realized, which reduces the operating cost and energy consumption of the ash conveying system and improves the operating efficiency of the ash conveying system.

[0040] Figure 1 FIG. 1 is a block diagram of an ash conveying system for a generator set according to an exemplary embodiment. Figure 1 As shown, the system 100 may include: a first transmission end 110, a second transmission end 120, a first ash conveying pipeline 130 and a second ash conveying pipeline 140; the first transmission end 110 may include an electric field A side 111, an economizer A side 112 and an economizer B side 113; the second transmission end 120 may include an electric field B side 121, a denitration A side 122, a denitration B side 123, an air preheater A side 124 and an air preheater B side 125; the first ash conveying pipeline 130 is connected to the first transmission end 110, and the second ash conveying pipeline 140 is connected to the first transmission end 110, and ... ash conveying pipeline 140. The electric field A side 111, the economizer A side 112 and the economizer B side 113 in the end 110 are connected; the second ash conveying pipeline 140 is respectively connected to the electric field B side 121, the denitrification A side 122, the denitrification B side 123, the air preheater A side 124 and the air preheater B side 125 in the second transmission end 120; the first ash conveying pipeline 130 is used to convey ash to the first transmission end 110; the second ash conveying pipeline 140 is used to convey ash to the second transmission end 120.

[0041] For example, the electric field A side and the electric field B side may be an electric field A side and an electric field B side of a generator set.

[0042] Through the above technical scheme, the ash transportation between the A side of the electric field and the A side of the economizer and the B side of the economizer can be carried out through the first ash transportation pipeline, and the B side of the electric field and the A side of the air preheater, the B side of the air preheater, the A side of the denitrification and the B side of the denitrification can be carried out through the second ash transportation pipeline. By adjusting the connecting equipment of the ash transportation pipeline, the zoned ash transportation of the electric field is realized, which reduces the operating cost and energy consumption of the ash transportation system and improves the operating efficiency of the ash transportation system.

[0043] Figure 2 is based on Figure 1 FIG. 1 is a block diagram of an ash conveying system for a generator set shown in FIG. Figure 2 As shown, the system 100 further includes a controller 150; the controller 150 is connected to the first ash conveying pipeline 130 and the second ash conveying pipeline 140 respectively; the controller 150 is used to control the first ash conveying pipeline 130 and the second ash conveying pipeline 140 to convey ash alternately.

[0044] For example, the controller can be used to control the first ash conveying pipeline to convey ash to the first output end, and when the first ash conveying pipeline finishes conveying ash, control the second ash conveying pipeline to convey ash to the second output end; and / or, the controller can be used to control the second ash conveying pipeline to convey ash to the second output end, and when the second ash conveying pipeline finishes conveying ash, control the first ash conveying pipeline to convey ash to the first output end. In this way, the alternating ash conveying of the two ash conveying pipelines can be achieved, thereby reducing the operating cost of the ash conveying equipment and the energy consumption of the ash conveying system.

[0045] Figure 3 is based on Figure 2 FIG. 1 is a block diagram of an ash conveying system for a generator set shown in FIG. Figure 3 As shown, the system 100 may also include a pressure sensor 160; the pressure sensor 160 is respectively connected to the first transmission end 110, the second transmission end 120 and the controller 150; the pressure sensor 160 is used to collect the first pressure value of the first transmission end 110 and the second pressure value of the second transmission end 120; and send the first pressure value and the second pressure value to the controller 150; the controller 150 is used to control the first ash conveying pipeline 130 and the second ash conveying pipeline 140 to convey ash alternately based on the control signal triggered by the first pressure value or the second pressure value.

[0046] For example, the pressure sensor can collect the pressure values ​​of one or more of the electric field A side, economizer A side and economizer B side in the first transmission end, and the electric field B side, air preheater A side, air preheater B side, denitrification A side and denitrification B side in the second transmission end; the first pressure value can include the pressure values ​​of one or more of the electric field A side, the economizer A side and the economizer B side; the second pressure value can include the pressure values ​​of one or more of the electric field B side, the air preheater A side, the air preheater B side, the denitrification A side and the denitrification B side. In this way, the pressure values ​​of the first transmission end and / or the second transmission end can be obtained in time, so as to timely understand the operation status of the ash conveying system.

[0047] Figure 4 is based on Figure 3 FIG. 1 is a block diagram of an ash conveying system for a generator set shown in FIG. Figure 4 As shown, the controller 150 may include a comparator 151 and a processor 152; the comparator 151 is connected to the pressure sensor 160 and the processor 152 respectively; the processor 152 is connected to the first ash conveying pipeline 130 and the second ash conveying pipeline 140 respectively; the comparator 151 is used to compare the first pressure value, the second pressure value and the preset pressure threshold to obtain a first comparison result; and based on the first comparison result, generate the control signal; the processor 152 is used to control the first ash conveying pipeline 130 and the second ash conveying pipeline 140 to convey ash alternately in response to the control signal generated by the comparator.

[0048] For example, the preset pressure threshold may be within the range of 0.02MPa-0.04MPa, such as 0.02MPa, 0.03MPa or 0.04MPa, etc., which is not limited here. The comparator may be used to compare the first pressure value with the preset pressure threshold; or the comparator may be used to compare the second pressure value with the preset pressure threshold.

[0049] It should be noted that comparing the numerical values ​​of multiple parameters by a comparator to obtain a comparison result is a prior art, and the specific content can be found in relevant technical documents, which will not be repeated here.

[0050] In some embodiments, the comparator 151 can be used to obtain the first comparison result when the first pressure value is less than or equal to the preset pressure threshold; and generate the control signal based on the first comparison result; the processor 152 can be used to control the first ash conveying pipeline to stop conveying ash to the first transmission end, and control the second ash conveying pipeline to convey ash to the second transmission end in response to the control signal.

[0051] For example, the first pressure value is positively correlated with the operating load and ash delivery of the generator set; the smaller the first pressure value, the smaller the operating load and the smaller the ash delivery; the larger the first pressure value, the larger the operating load and the larger the ash delivery. In this way, the operating condition of the first output end can be determined according to the first pressure value of the first output end. When the first pressure value is small, it is determined that the ash delivery at the first output end of the generator set is low and there is no need to continue ash delivery, so the ash delivery to the first output end is stopped and the ash delivery to the second output end is started, so as to realize the alternating ash delivery to the first output end and the second output end, thereby reducing the energy consumption of the ash delivery system.

[0052] For example, the comparator can be used to obtain the first comparison result when the pressure value on the electric field A side is less than or equal to 0.03 MPa, and the pressure values ​​on the economizer A side and the economizer B side are less than or equal to 0.04 MPa; based on the first comparison result, the control signal is generated. At this time, the processor can control the first ash conveying pipeline to stop conveying ash in response to the control signal, and control the second ash conveying pipeline to convey ash to the second transmission end.

[0053] In other embodiments, the comparator 151 can be used to obtain the first comparison result when the second pressure value is less than or equal to the preset pressure threshold; and based on the first comparison result, generate the control signal; the processor 152 can be used to control the second ash conveying pipeline to stop conveying ash to the second transmission end, and control the first ash conveying pipeline to convey ash to the first transmission end in response to the control signal. It can be seen that the processor can also determine that the ash amount at the second output end of the generator set is low and there is no need to continue conveying ash when the second pressure value at the second output end is small, thereby stopping conveying ash to the second output end and starting conveying ash to the first output end, so as to achieve alternating ash conveying to the first output end and the second output end, thereby reducing the energy consumption of the ash conveying system.

[0054] Figure 5 is based on Figure 4 FIG. 1 is a block diagram of an ash conveying system for a generator set shown in FIG. Figure 5 As shown, the second transmission end 120 may include a denitrification transmission end 126 and an air preheater transmission end 127; the denitrification transmission end 126 includes the electric field B side 121, the denitrification A side 122 and the denitrification B side 123; the air preheater transmission end 127 includes the electric field B side 121, the air preheater A side 124 and the air preheater B side 125; the second pressure value includes the pressure value of the denitrification transmission end or the pressure value of the air preheater transmission end.

[0055] In some embodiments, the comparator 151 can be used to obtain the first comparison result when the pressure value at the denitrification transmission end 126 is less than or equal to the preset pressure threshold; and generate the control signal based on the first comparison result; or, when the pressure value at the air preheater transmission end 127 is less than or equal to the preset pressure threshold, obtain the first comparison result; and generate the control signal based on the first comparison result.

[0056] In other embodiments, the processor 152 can be used to control the second ash conveying pipeline to alternately convey ash to the denitrification transmission end and the air preheater transmission end in response to the control signal.

[0057] By way of example, the comparator can obtain the first comparison result when the pressure values ​​on the electric field B side, the denitrification A side and the denitrification B side of the denitrification transmission end are less than or equal to the preset pressure threshold; and generate the control signal based on the first comparison result; the processor can be used to control the second ash conveying pipeline to stop conveying ash to the denitrification transmission end, and control the second ash conveying pipeline to convey ash to the air preheater transmission end in response to the control signal.

[0058] By way of example, the comparator can obtain the first comparison result when the pressure values ​​on the electric field B side, the air preheater A side and the air preheater B side of the air preheater transmission end are less than or equal to the preset pressure threshold; and generate the control signal based on the first comparison result; the processor can be used to control the second ash conveying pipeline to stop conveying ash to the air preheater transmission end, and control the second ash conveying pipeline to convey ash to the denitrification transmission end in response to the control signal.

[0059] For example, the comparator can obtain the first comparison result when the pressure value of the electric field B side of the denitration transmission end is less than or equal to 0.03MPa, and the pressure values ​​of the denitration A side and the denitration B side are less than or equal to 0.04MPa; or, the comparator can obtain the first comparison result when the pressure value of the electric field B side of the air preheater transmission end is less than or equal to 0.03MPa, and the pressure values ​​of the air preheater A side and the air preheater B side are less than or equal to 0.04MPa. In this way, the alternating ash conveying to the denitration transmission end and the air preheater transmission end can be realized, thereby meeting the ash conveying demand under low operating load conditions, without the need to frequently start and stop the ash conveying equipment, and reducing the operating cost and energy consumption of the ash conveying system.

[0060] In some embodiments, the processor 152 can be used to control the second ash conveying pipeline to alternately convey ash to the denitration transmission end and the air preheater transmission end according to a preset duration. For example, the preset duration can be set by the user and is not limited here. In this way, the denitration transmission end and the air preheater transmission end can be controlled to periodically alternately convey ash. When the generator set is in a low-load operation state, only part of the equipment is conveyed ash, which reduces the energy consumption of the ash conveying system and improves the operating efficiency.

[0061] In other embodiments, the comparator 151 may also be used to compare the operating load of the generator set with a preset load threshold to obtain a second comparison result; and generate the control signal based on the first comparison result and the second comparison result.

[0062] For example, the preset load threshold can be set by the user, which is not limited here. The comparator can be used to obtain the second comparison result when the operating load is less than or equal to the preset load threshold, thereby determining that the generator set is in a low-load operating state. The comparator can also be used to obtain the second comparison result when the operating load is greater than the preset load threshold, thereby determining that the generator set is in a high-load operating state. In this way, the current operating state of the generator set can be determined by the comparator, and when it is determined that the generator set is in a low-load operating state, the processor controls the first ash conveying pipeline and the second ash conveying pipeline to alternately convey ash, thereby reducing the energy consumption of the ash conveying system.

[0063] In some embodiments, the comparator 151 can also be used to generate an ash conveying control signal based on the second comparison result; the processor 152 can also be used to control the first ash conveying pipeline and the second ash conveying pipeline to convey ash simultaneously in response to the ash conveying control signal generated by the comparator. In this way, when the comparator determines that the generator set is in a high-load operation state, the processor can control the first ash conveying pipeline and the second ash conveying pipeline to convey ash simultaneously, ensuring that the ash conveying system can meet the requirements of high-load operation and improve the operating efficiency of the generator set.

[0064] The following describes the working process of the ash conveying system of the generator set provided by the present disclosure through a specific embodiment. The ash conveying system of the generator set may include a first transmission end 110, a second transmission end 120, a first ash conveying pipeline 130, a second ash conveying pipeline 140, a controller 150 and a pressure sensor 160; the first transmission end 110 may include an electric field A side 111, an economizer A side 112 and an economizer B side 113; the second transmission end 120 may include a denitrification transmission end 126 and an air preheater transmission end 127; the denitrification transmission end 126 may include an electric field B side 121, a denitrification A side 122 and a denitrification B side 123; the air preheater transmission end 127 may include an electric field B side 121, an air preheater A side 124 and an air preheater B side 125; the controller 150 may include a comparator 151 and a processor 152.

[0065] The first ash conveying pipeline 130 is respectively connected to the electric field A side 111, the economizer A side 112 and the economizer B side 113; the second ash conveying pipeline 140 is respectively connected to the electric field B side 121, the denitrification A side 122, the denitrification B side 123, the air preheater A side 124 and the air preheater B side 125 in the second transmission end 120; the pressure sensor 160 is respectively connected to the first transmission end 110, the second transmission end 120 and the controller 150; the comparator 151 is respectively connected to the pressure sensor 160 and the processor 152; the processor 152 is respectively connected to the first ash conveying pipeline 130 and the second ash conveying pipeline 140.

[0066] The pressure sensor 160 is used to collect the first pressure value of the first transmission end 110 and the second pressure value of the second transmission end 120; and send the first pressure value and the second pressure value to the controller 150; the comparator 151 is used to compare the first pressure value, the second pressure value and the preset pressure threshold to obtain a first comparison result; and based on the first comparison result, generate the control signal; the processor 152 is used to control the first ash conveying pipeline 130 and the second ash conveying pipeline 140 to convey ash alternately in response to the control signal generated by the comparator.

[0067] Among them, the controller 150 can be used to control the first ash conveying pipeline 130 to convey ash to the first output end 110, and when the first ash conveying pipeline 130 finishes conveying ash, control the second ash conveying pipeline 140 to convey ash to the denitrification transmission end 126; or, control the first ash conveying pipeline 130 to convey ash to the first output end 110, and when the first ash conveying pipeline 130 finishes conveying ash, control the second ash conveying pipeline 140 to convey ash to the air preheater transmission end 127.

[0068] Similarly, the controller 150 can be used to control the second ash conveying pipeline 140 to convey ash to the denitration transmission end 126, and when the second ash conveying pipeline 140 finishes conveying ash to the denitration transmission end 126, control the first ash conveying pipeline 130 to convey ash to the first output end 110; or, the controller 150 can be used to control the second ash conveying pipeline 140 to convey ash to the air preheater transmission end 127, and when the second ash conveying pipeline 140 finishes conveying ash to the air preheater transmission end 127, control the first ash conveying pipeline 130 to convey ash to the first output end 110. In this way, the first transmission end and the denitration transmission end can be controlled to convey ash alternately, or the first transmission end and the air preheater transmission end can be controlled to convey ash alternately, so as to control some equipment of the first transmission end and the second transmission end to convey ash alternately, thereby reducing the energy consumption of the ash conveying system.

[0069] Through the above technical scheme, the ash transportation between the A side of the electric field and the A side of the economizer and the B side of the economizer can be carried out through the first ash transportation pipeline, and the B side of the electric field and the A side of the air preheater, the B side of the air preheater, the A side of the denitrification and the B side of the denitrification can be carried out through the second ash transportation pipeline. By adjusting the connecting equipment of the ash transportation pipeline, the zoned ash transportation of the electric field is realized, which reduces the operating cost and energy consumption of the ash transportation system and improves the operating efficiency of the ash transportation system.

[0070] In summary, the present disclosure provides an ash conveying system for a power generation unit; the system comprises: a first transmission end, a second transmission end, a first ash conveying pipeline and a second ash conveying pipeline; the first transmission end comprises an electric field A side, an economizer A side and an economizer B side; the second transmission end comprises an electric field B side, a denitrification A side, a denitrification B side, an air preheater A side and an air preheater B side; the first ash conveying pipeline is respectively connected to the electric field A side, the economizer A side and the economizer B side in the first transmission end; the second ash conveying pipeline is respectively connected to the electric field B side, the denitrification A side, the denitrification B side, the air preheater The A side of the electric field is connected with the A side of the air preheater and the B side of the air preheater; the first ash conveying pipe is used to convey ash to the first transmission end; the second ash conveying pipe is used to convey ash to the second transmission end; through the above technical scheme, the A side of the electric field can be connected to the A side of the economizer and the B side of the economizer through the first ash conveying pipe for ash conveying, and the B side of the electric field can be connected to the A side of the air preheater, the B side of the air preheater, the A side of the denitrification and the B side of the denitrification through the second ash conveying pipe for ash conveying, and by adjusting the connecting equipment of the ash conveying pipes, the zoned ash conveying of the electric field is realized, the operating cost and the energy consumption of the ash conveying system are reduced, and the operating efficiency of the ash conveying system is improved.

[0071] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0072] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0073] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. An ash conveying system for a generator set, characterized in that: The system includes: a first transmission end, a second transmission end, a first ash conveying pipeline and a second ash conveying pipeline; the first transmission end includes an electric field A side, an economizer A side and an economizer B side; the second transmission end includes an electric field B side, a denitration A side, a denitration B side, an air preheater A side and an air preheater B side; the first ash conveying pipeline is respectively connected to the electric field A side, the economizer A side and the economizer B side in the first transmission end; the second ash conveying pipeline is respectively connected to the electric field B side, the denitration A side, the denitration B side, the air preheater A side and the air preheater B side in the second transmission end; The first ash conveying pipeline is used to convey ash to the first transmission end; The second ash conveying pipeline is used to convey ash to the second transmission end.

2. The system according to claim 1, characterized in that The system further comprises a controller; the controller is connected to the first ash conveying pipeline and the second ash conveying pipeline respectively; The controller is used to control the first ash conveying pipeline and the second ash conveying pipeline to convey ash alternately.

3. The system according to claim 2, characterized in that The system further comprises a pressure sensor; the pressure sensor is respectively connected to the first transmission end, the second transmission end and the controller; The pressure sensor is used to collect a first pressure value of the first transmission end and a second pressure value of the second transmission end; and send the first pressure value and the second pressure value to the controller; The controller is used to control the first ash conveying pipeline and the second ash conveying pipeline to convey ash alternately based on a control signal triggered by the first pressure value or the second pressure value.

4. The system according to claim 3, characterized in that The controller includes a comparator and a processor; the comparator is connected to the pressure sensor and the processor respectively; the processor is connected to the first ash conveying pipeline and the second ash conveying pipeline respectively; The comparator is used to compare the first pressure value, the second pressure value and a preset pressure threshold to obtain a first comparison result; and generating the control signal based on the first comparison result; The processor is used for controlling the first ash conveying pipeline and the second ash conveying pipeline to convey ash alternately in response to the control signal generated by the comparator.

5. The system according to claim 4, characterized in that The comparator is configured to obtain the first comparison result when the first pressure value is less than or equal to the preset pressure threshold; and generate the control signal based on the first comparison result; The processor is used for controlling the first ash conveying pipeline to stop conveying ash to the first transmission end, and controlling the second ash conveying pipeline to convey ash to the second transmission end in response to the control signal.

6. The system according to claim 4, characterized in that The comparator is configured to obtain the first comparison result when the second pressure value is less than or equal to the preset pressure threshold; and generate the control signal based on the first comparison result; The processor is used for controlling the second ash conveying pipeline to stop conveying ash to the second transmission end, and controlling the first ash conveying pipeline to convey ash to the first transmission end in response to the control signal.

7. The system according to claim 6, characterized in that The second transmission end includes the deNOx transmission end and the air preheater transmission end; the deNOx transmission end includes the electric field B side, the deNOx A side and the deNOx B side; the air preheater transmission end includes the electric field B side, the air preheater A side and the air preheater B side; the second pressure value includes the pressure value of the deNOx transmission end or the pressure value of the air preheater transmission end.

8. The system according to claim 7, characterized in that The comparator is used to obtain the first comparison result when the pressure value at the denitration transmission end is less than or equal to the preset pressure threshold; and generate the control signal based on the first comparison result; or, When the pressure value at the transmission end of the air preheater is less than or equal to the preset pressure threshold, obtaining the first comparison result; And based on the first comparison result, the control signal is generated.

9. The system according to claim 8, characterized in that The processor is used for controlling the second ash conveying pipeline to alternately convey ash to the denitration transmission end and the air preheater transmission end in response to the control signal.

10. The system according to claim 9, characterized in that The processor is used to control the second ash conveying pipeline to alternately convey ash to the denitrification transmission end and the air preheater transmission end according to a preset time length.

11. The system according to claim 4, characterized in that The comparator is further used to compare the operating load of the generator set with a preset load threshold to obtain a second comparison result; and generate the control signal based on the first comparison result and the second comparison result.

12. The system according to claim 11, characterized in that The comparator is further used to generate a gray conveying control signal based on the second comparison result; The processor is further configured to control the first ash conveying pipeline and the second ash conveying pipeline to convey ash simultaneously in response to the ash conveying control signal generated by the comparator.

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