High-pressure heater condensate system, method, electronic equipment and storage medium
By introducing additional drainage pipes with fewer valves and lower rise heights into the high-pressure heater, the problem of poor drainage during deep peak shaving in thermal power plants was solved, heat consumption was reduced, and economic efficiency was ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI POWER EQUIPMENT RESEARCH INSTITUTE CO LTD
- Filing Date
- 2023-09-21
- Publication Date
- 2026-05-26
AI Technical Summary
During deep peak shaving in thermal power plants, the condensate drainage in the high-pressure heater is not smooth. Existing technology leads to heat waste by opening the heater for emergency drainage, which affects the heat consumption of the steam turbine generator set.
Design a high-pressure heater drainage system, including an original drainage pipe and an auxiliary drainage pipe. The auxiliary drainage pipe has fewer valves and a lower rise height, and is used to drain condensate to the deaerator under low load conditions, avoiding pipe friction and valve resistance, and preventing heat waste caused by emergency drainage.
To avoid poor drainage and heat waste at low loads, reduce the heat consumption of the steam turbine generator set, while ensuring economy at high loads and avoiding high costs.
Smart Images
Figure CN117329505B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of thermal power generation technology, and in particular to a high-pressure heater drainage system, method, electronic device and storage medium. Background Technology
[0002] Renewable energy is inherently unstable, so improving the deep peak-shaving capacity of thermal power plants, which constitute the main source of power generation, has become an inevitable choice for stabilizing the power grid and absorbing new energy sources.
[0003] When the extraction pressure in the high-pressure heater of a steam turbine generator unit in a thermal power plant is low due to the low peak load, the condensate in the high-pressure heater may not drain properly. The existing technology uses emergency condensate drainage by opening all heaters to alleviate the drainage problem, which will cause a lot of heat waste and make the heat consumption of the steam turbine generator unit increase significantly. Summary of the Invention
[0004] This invention provides a high-pressure heater drainage system, method, electronic device, and storage medium, which can effectively alleviate the problem of poor drainage of high-pressure heaters during deep peak shaving without causing heat waste.
[0005] In a first aspect, embodiments of the present invention provide a high-pressure heater drainage system, comprising: a high-pressure heater drainage structure, the high-pressure heater drainage structure including an original drainage pipe and an additional drainage pipe; the original drainage pipe is used to drain condensate from the high-pressure heater to a deaerator; the additional drainage pipe is used to drain condensate from the high-pressure heater to the deaerator's drain pipe; wherein, the number of valves in the additional drainage pipe is less than the number of valves in the original drainage pipe; the rise height of the drain pipe from the high-pressure heater to the deaerator is lower than the rise height from the high-pressure heater to the deaerator.
[0006] Optionally, the high-pressure heater drainage structure includes: a No. 1 high-pressure heater drainage structure, a No. 2 high-pressure heater drainage structure, and a No. 3 high-pressure heater drainage structure.
[0007] The drainage structure of the No. 1 high-pressure heater is used to drain the condensate in the No. 1 high-pressure heater into the No. 2 high-pressure heater, and the drainage structure of the No. 2 high-pressure heater is used to drain the condensate in the No. 2 high-pressure heater into the No. 3 high-pressure heater; the drainage structure of the No. 3 high-pressure heater includes the original drainage pipe and the additional drainage pipe.
[0008] The original drainage pipe is used to drain the condensate from the No. 3 high-pressure heater to the deaerator; the additional drainage pipe is used to drain the condensate from the No. 3 high-pressure heater to the deaerator's drain pipe.
[0009] Optionally, the inlet of the additional drainage pipe is connected to the outlet of the high-pressure heater, and the outlet of the additional drainage pipe is connected to the outlet of the outlet valve of the deaerator's drain pipe.
[0010] Optionally, the deaerator's drain pipe includes multiple drain pipes, and the outlet of the additional drain pipe is connected to the outlet of the outlet valve of one of the multiple drain pipes.
[0011] Optionally, the additional drainage pipe is equipped with a check valve and a pneumatic regulating valve.
[0012] Optionally, the high-pressure heater drainage system further includes: a high-pressure heater drainage device, used to drain the condensate in the high-pressure heater of the steam turbine generator set to the deaerator's drain pipe through an additional drainage pipe of the high-pressure heater, or to drain the condensate in the high-pressure heater of the steam turbine generator set to the deaerator through the original drainage pipe of the high-pressure heater.
[0013] Optionally, the high-pressure heater drainage device includes: a current operating load acquisition module and a drainage module;
[0014] The current operating load acquisition module is used to acquire the current operating load of the corresponding steam turbine generator set;
[0015] The drainage module is used to drain the condensate in the high-pressure heater of the steam turbine generator set to the drain pipe of the deaerator through the additional drainage pipe of the high-pressure heater when the current operating load meets the first preset condition.
[0016] When the current operating load meets the second preset condition, the condensate in the high-pressure heater of the steam turbine generator set is discharged to the deaerator through the original drain pipe of the high-pressure heater.
[0017] Secondly, embodiments of the present invention provide a method for draining condensate from a high-pressure heater, comprising: draining condensate from the high-pressure heater of a steam turbine generator set to the drain pipe of a deaerator through an additional drain pipe of the high-pressure heater, or draining condensate from the high-pressure heater of the steam turbine generator set to the deaerator through the original drain pipe of the high-pressure heater; wherein the number of valves in the additional drain pipe is less than the number of valves in the original drain pipe; and the rise height of the drain pipe from the high-pressure heater to the deaerator is lower than the rise height from the high-pressure heater to the deaerator.
[0018] Optionally, before draining the condensate in the high-pressure heater of the steam turbine generator set to the deaerator drain pipe through the additional drain pipe of the high-pressure heater, or before draining the condensate in the high-pressure heater of the steam turbine generator set to the deaerator through the original drain pipe of the high-pressure heater, the current operating load of the steam turbine generator set is obtained.
[0019] When the current operating load meets the first preset condition, the condensate in the high-pressure heater of the steam turbine generator set is discharged to the drain pipe of the deaerator through the additional drain pipe of the high-pressure heater.
[0020] When the current operating load meets the second preset condition, the condensate in the high-pressure heater of the steam turbine generator set is discharged to the deaerator through the original drain pipe of the high-pressure heater.
[0021] Thirdly, embodiments of the present invention also provide an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the high-pressure heater hydrophobic method as described in any of the embodiments of the present invention.
[0022] Fourthly, embodiments of the present invention also provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the high-pressure heater hydrophobic method as described in any of the embodiments of the present invention.
[0023] This invention provides a high-pressure heater drainage system, method, electronic equipment, and storage medium. It allows condensate from the high-pressure heater to be drained into the deaerator's drain pipe via an additional drainage pipe with a lower rise height and fewer valves. This avoids drainage problems caused by excessive pipe friction and valve resistance during the drainage process to the deaerator when the turbine generator load is low and the extraction pressure in the high-pressure heater is low. It also avoids heat waste caused by emergency drainage of the heater, thereby reducing the heat consumption of the turbine generator set. Furthermore, when the turbine generator set load is high, draining all the condensate through the additional drainage pipe requires a larger diameter and higher strength, leading to excessive costs. This invention retains the original drainage pipe, ensuring economic efficiency. Attached Figure Description
[0024] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a structural schematic of the high-pressure heater hydrophobic system provided in an embodiment of the present invention;
[0026] Figure 2 This is a schematic diagram of a high-pressure heater hydrophobic system and related structures provided in an embodiment of the present invention;
[0027] Figure 3 This is a schematic diagram of a high-pressure heater condensate drain device provided in an embodiment of the present invention;
[0028] Figure 4 This is a schematic flowchart of a high-pressure heater hydrophobication method provided in an embodiment of the present invention;
[0029] Figure 5 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation
[0030] When the peak load of a steam turbine generator set in a thermal power plant is low, the condensate in its high-pressure heater may not drain properly. The steam turbine system is designed to operate normally under 50-100% rated load. At around 40% load, abnormal phenomena such as poor drainage of the high-pressure heater will occur. When the load drops to 20%, the condensate between the heaters can no longer drain by gravity.
[0031] For example, in a supercritical wet-cooled 660MW unit, as the load decreases, the pressure difference between adjacent extraction stages gradually decreases. At 30% load, the theoretical extraction pressure difference of the No. 3 high-pressure heater can overcome the flow resistance. However, due to pipe friction or excessive valve resistance, the No. 3 high-pressure heater cannot properly drain water during actual operation. Because the No. 3 high-pressure heater fails to drain water to the deaerator, condensate enters the condenser, causing heat to be directly carried away by the circulating water, resulting in increased heat consumption. Specifically, at 30% load, while maintaining the generator output power unchanged, the main steam flow rate increases by approximately 4.3 t / h, the condensate flow rate increases by approximately 73.9 t / h, the condensate pump power increases by approximately 50 kW, and the heat consumption increases by approximately 57.5 kJ / (kW·h). Meanwhile, the condensate from the No. 3 high-pressure heater directly enters the condenser, increasing the condenser's heat load by 10-11 MW. With a single circulating water pump flow rate of 38,000 t / h, the increased circulating water temperature rise is approximately 0.2℃. Assuming the condenser performance remains unchanged, this affects the unit's back pressure by approximately 0.05 kPa. Based on the back pressure-to-heat-consumption correction curve, this increases heat consumption by approximately 2.2 kJ / (kW·h). Calculations based on a boiler efficiency of 93.80% and a pipeline efficiency of 99% show that the failure of the No. 3 condensate to properly enter the deaerator increases the unit's coal consumption for power generation by 2.19 g / (kW·h) and the plant's power consumption rate by 0.025%.
[0032] This invention provides a high-pressure heater drainage system, method, electronic equipment, and storage medium. It allows condensate from the high-pressure heater to be drained into the deaerator's drain pipe via an additional drainage pipe with a lower rise height and fewer valves. This avoids drainage problems caused by excessive pipe friction and valve resistance during the drainage process to the deaerator when the turbine generator load is low and the extraction pressure in the high-pressure heater is low. It also avoids heat waste caused by emergency drainage of the heater, thereby reducing the heat consumption of the turbine generator set. Furthermore, when the turbine generator set load is high, draining all the condensate through the additional drainage pipe requires a larger diameter and higher strength, leading to excessive costs. This invention retains the original drainage pipe, ensuring economic efficiency.
[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.
[0034] An embodiment of the present invention provides a high-pressure heater condensate drainage system, comprising: a high-pressure heater condensate drainage structure, the high-pressure heater condensate drainage structure including an original condensate drainage pipe and an additional condensate drainage pipe; the original condensate drainage pipe is used to drain condensate from the high-pressure heater to a deaerator; the additional condensate drainage pipe is used to drain condensate from the high-pressure heater to a drain pipe of the deaerator; wherein, the number of valves in the additional condensate drainage pipe is less than the number of valves in the original condensate drainage pipe; the rise height of the drain pipe from the high-pressure heater to the deaerator is lower than the rise height of the high-pressure heater to the deaerator.
[0035] Specifically, the aforementioned high-pressure heater drainage system can be the high-pressure heater drainage system of a steam turbine generator set in a thermal power plant.
[0036] Specifically, the condensate in the high-pressure heater of a thermal power plant's steam turbine generator unit originates from the extraction of air from the intermediate and high-pressure cylinders. Since the extraction pressure in the intermediate and high-pressure cylinders is much higher than atmospheric pressure, air cannot mix in. Therefore, the condensate in the high-pressure heater has a low oxygen content and does not require deaeration in a deaerator; thus, the condensate can be directly discharged into the deaerator's drain pipe.
[0037] Specifically, based on the original pipeline of the high-pressure heater's drainage structure, an additional drainage pipeline with a lower rise height and fewer valves is added. This facilitates the drainage of condensate from the high-pressure heater to the deaerator's drain pipe through the additional drainage pipeline with a lower rise height and fewer valves. When the turbine generator set load is low and the extraction pressure in the high-pressure heater is low, this avoids drainage obstruction caused by excessive pipe friction and valve resistance during the drainage process from the high-pressure heater to the deaerator. It also avoids heat waste caused by emergency drainage of the heater, thereby reducing the heat consumption level of the turbine generator set. Furthermore, when the turbine generator set load is high, draining all the condensate through the additional drainage pipeline requires a larger pipe diameter and higher strength, resulting in excessively high costs. This invention retains the original drainage pipeline to ensure economic efficiency.
[0038] In one specific embodiment of the present invention, such as Figure 1 As shown, the high-pressure heater drainage structure includes: a No. 1 high-pressure heater drainage structure, a No. 2 high-pressure heater drainage structure, and a No. 3 high-pressure heater drainage structure; the No. 1 high-pressure heater drainage structure is used to drain the condensate in the No. 1 high-pressure heater into the No. 2 high-pressure heater, and the No. 2 high-pressure heater drainage structure is used to drain the condensate in the No. 2 high-pressure heater into the No. 3 high-pressure heater; the No. 3 high-pressure heater drainage structure includes an original drainage pipe and an additional drainage pipe; the original drainage pipe is used to drain the condensate in the No. 3 high-pressure heater into the deaerator; the additional drainage pipe is used to drain the condensate in the No. 3 high-pressure heater into the deaerator's drain pipe.
[0039] Specifically, steam turbine generator sets in thermal power plants typically include three high-pressure heaters in three stages. In practice, the inability of the extraction pressure difference to overcome flow resistance often occurs during the condensate drainage process of the No. 3 high-pressure heater. Therefore, simply adding an additional condensate drain pipe to the condensate drain structure of the No. 3 high-pressure heater to drain the condensate from the No. 3 high-pressure heater to the deaerator's drain pipe can prevent the high-pressure heater from experiencing poor drainage overall.
[0040] Optionally, in a scenario where the steam turbine generator set may also include n stages and n high-pressure heaters, where n is a non-zero natural number, the nth high-pressure heater that originally drains water to the deaerator includes the original drain pipe and the additional drain pipe.
[0041] In another specific embodiment of the present invention, such as Figure 2 As shown, the inlet of the additional drainage pipe is connected to the outlet of the high-pressure heater, and the outlet of the additional drainage pipe is connected to the outlet of the outlet valve of the deaerator's drain pipe, which helps to further reduce flow resistance.
[0042] Specifically, the aforementioned outlet valve can be an electrically operated shut-off valve.
[0043] Optionally, the deaerator's drainage system includes multiple drainage pipes, with the outlet of an additional condensate drain pipe connected to the outlet valve of one of these drainage pipes. This is to avoid excessive costs and ensure cost-effectiveness.
[0044] Optional, such as Figure 2 As shown, a check valve and a pneumatic regulating valve are installed in the additional drainage pipe.
[0045] In practical applications, deaerator drainage systems often consist of multiple drainage pipes. The outlet of an auxiliary condensate drain pipe is connected to the outlet valve of the deaerator's drainage system. When the auxiliary condensate drain pipe is equipped with a check valve and a pneumatic regulating valve, even if the feedwater pump on the side connected to the auxiliary condensate drain pipe is disconnected, the pneumatic regulating valve and the outlet valve of the deaerator's drainage system ensure that the condensate from the high-pressure heater is drained through another deaerator drainage pipe. In scenarios with n high-pressure heaters, even if the nth high-pressure heater is disconnected, the check valve and pneumatic regulating valve in the auxiliary condensate drain pipe ensure that the deaerator drainage will not flow back into the nth high-pressure heater. This ensures the safety and adaptability of the high-pressure heater under various extreme conditions.
[0046] In another specific embodiment of the present invention, the high-pressure heater drainage system of the present invention further includes: a high-pressure heater drainage device, used to drain the condensate in the high-pressure heater to the drain pipe of the deaerator through an additional drainage pipe of the high-pressure heater, or to drain the condensate in the high-pressure heater to the deaerator through the original drainage pipe of the high-pressure heater.
[0047] In optional specific embodiments of the present invention, such as Figure 3 As shown, the high-pressure heater condensate drain device includes: a current operating load acquisition module 301 and a condensate drain module 302; the current operating load acquisition module is used to acquire the current operating load of the corresponding steam turbine generator set; the condensate drain module is used to drain the condensate in the high-pressure heater of the steam turbine generator set to the deaerator drain pipe through the additional condensate drain pipe of the high-pressure heater when the current operating load meets the first preset condition; and to drain the condensate in the high-pressure heater of the steam turbine generator set to the deaerator through the original condensate drain pipe of the high-pressure heater when the current operating load meets the second preset condition.
[0048] Specifically, the condensate in the high-pressure heater can be drained into the deaerator's drain pipe through the high-pressure heater's additional drain pipe by controlling the corresponding valve switch, or the condensate in the high-pressure heater can be drained into the deaerator through the high-pressure heater's original drain pipe.
[0049] Optionally, when the current operating load meets the second preset condition, the condensate in the high-pressure heater of the turbine generator set is drained to the deaerator through the original drain pipe of the high-pressure heater, or the condensate in the high-pressure heater of the turbine generator set is drained to the deaerator's drain pipe through the additional drain pipe of the high-pressure heater.
[0050] Specifically, the first preset condition can be set to the current operating load being less than 50%, and the second preset condition can be set to the current operating load being not less than 50%.
[0051] This ensures both the normal drainage of the high-pressure heater during low-load operation of the turbine generator set, reducing the unit's heat consumption, and the rational utilization of the original drainage pipes during high-load operation, thus guaranteeing the overall economic efficiency of operation.
[0052] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.
[0053] This invention provides a method for draining condensate from a high-pressure heater. This method can be executed by a high-pressure heater draining device provided in this invention, which can be implemented using software and / or hardware. In one specific embodiment, the device can be integrated into an electronic device, such as a computer or server. The following embodiments will illustrate this using the integration of the device into an electronic device as an example. Specifically, the method may include: draining condensate from the high-pressure heater of a steam turbine generator set to the deaerator's drain pipe through an additional drain pipe of the high-pressure heater, or draining condensate from the high-pressure heater of the steam turbine generator set to the deaerator through the original drain pipe of the high-pressure heater;
[0054] The number of valves in the additional drainage pipe is less than the number of valves in the original drainage pipe; the rise height of the drain pipe from the high-pressure heater to the deaerator is lower than the rise height from the high-pressure heater to the deaerator.
[0055] Specifically, the condensate in the high-pressure heater can be drained into the deaerator's drain pipe through the high-pressure heater's additional drain pipe by controlling the corresponding valve switch, or the condensate in the high-pressure heater can be drained into the deaerator through the high-pressure heater's original drain pipe.
[0056] This invention enables the drainage of condensate from the high-pressure heater to the deaerator's drain pipe via an additional drain pipe with a lower rise height and fewer valves. This avoids drainage problems caused by excessive pipe friction and valve resistance during the drainage process when the turbine generator load is low and the extraction pressure in the high-pressure heater is low. It also avoids heat waste caused by emergency draining of the heater, thus reducing the heat consumption of the turbine generator set. Furthermore, when the turbine generator set load is high, draining all the condensate through the additional drain pipe requires a larger diameter and higher strength, leading to excessively high costs. This invention retains the original drain pipe, ensuring economic efficiency.
[0057] In an optional specific embodiment of the present invention, as shown in 4, it includes:
[0058] Step 401: Obtain the current operating load of the steam turbine generator set;
[0059] Step 402: When the current operating load meets the first preset condition, the condensate in the high-pressure heater of the turbine generator set is drained to the deaerator's drain pipe through the additional drain pipe of the high-pressure heater; when the current operating load meets the second preset condition, the condensate in the high-pressure heater of the turbine generator set is drained to the deaerator through the original drain pipe of the high-pressure heater.
[0060] Specifically, the first preset condition can be set to the current operating load being less than 50%, and the second preset condition can be set to the current operating load being not less than 50%.
[0061] This ensures both the normal drainage of the high-pressure heater during low-load operation of the turbine generator set, reducing the unit's heat consumption, and the rational utilization of the original drainage pipes during high-load operation, thus guaranteeing the overall economic efficiency of operation.
[0062] This invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the high-pressure heater hydrophobic method provided in any of the above embodiments.
[0063] This invention also provides a computer-readable medium having a computer program stored thereon, which, when executed by a processor, implements the high-pressure heater hydrophobic method provided in any of the above embodiments.
[0064] The following is for reference. Figure 5 It shows a schematic diagram of the structure of a computer system 500 suitable for implementing an electronic device according to embodiments of the present invention. Figure 5The electronic device shown is merely an example and should not be construed as limiting the functionality and scope of use of the embodiments of the present invention.
[0065] like Figure 5 As shown, the computer system 500 includes a central processing unit (CPU) 501, which can perform various appropriate actions and processes based on programs stored in read-only memory (ROM) 502 or programs loaded from storage section 508 into random access memory (RAM) 503. The RAM 503 also stores various programs and data required for the operation of the system 500. The CPU 501, ROM 502, and RAM 503 are interconnected via a bus 504. An input / output (I / O) interface 505 is also connected to the bus 504.
[0066] The following components are connected to I / O interface 505: an input section 506 including a keyboard, mouse, etc.; an output section 507 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 508 including a hard disk, etc.; and a communication section 509 including a network interface card such as a LAN card, modem, etc. The communication section 509 performs communication processing via a network such as the Internet. A drive 510 is also connected to I / O interface 505 as needed. A removable medium 511, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., is installed on drive 510 as needed so that computer programs read from it can be installed into storage section 508 as needed.
[0067] In particular, according to the embodiments disclosed in this invention, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this invention include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication section 509, and / or installed from removable medium 511. When the computer program is executed by central processing unit (CPU) 501, it performs the functions defined above in the system of this invention.
[0068] It should be noted that the computer-readable medium shown in this invention can be a computer-readable signal medium or a computer-readable storage medium, or any combination thereof. A computer-readable storage medium can be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this invention, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this invention, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media can also be any computer-readable medium other than computer-readable storage media, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to: wireless, wire, optical fiber, RF, etc., or any suitable combination thereof.
[0069] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram or flowchart, and combinations of blocks in a block diagram or flowchart, may be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.
[0070] The modules and / or units described in the embodiments of the present invention can be implemented in software or hardware. The described modules and / or units can also be housed in a processor; for example, a processor may be described as including a high-pressure heater condensate drain device; or a processor may be described as including a current operating load acquisition module and a condensate drain module. The names of these modules do not necessarily constitute a limitation on the module itself.
[0071] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can occur depending on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.
Claims
1. A high pressure heater drain system, comprising: The hydrophobic structure of the high-pressure heater is characterized by, The high-pressure heater drainage structure includes an original drainage pipe and an additional drainage pipe. The original drainage pipe is used to drain the condensate from the high-pressure heater to the deaerator. The additional drainage pipe is used to drain the condensate from the high-pressure heater to the drain pipe of the deaerator. The number of valves in the additional drainage pipe is less than the number of valves in the original drainage pipe; the rise height of the drain pipe from the high-pressure heater to the deaerator is lower than the rise height from the high-pressure heater to the deaerator.
2. The high-pressure heater drainage system according to claim 1, characterized in that, The high-pressure heater drainage structure includes: a No. 1 high-pressure heater drainage structure, a No. 2 high-pressure heater drainage structure, and a No. 3 high-pressure heater drainage structure. The drainage structure of the No. 1 high-pressure heater is used to drain the condensate in the No. 1 high-pressure heater into the No. 2 high-pressure heater, and the drainage structure of the No. 2 high-pressure heater is used to drain the condensate in the No. 2 high-pressure heater into the No. 3 high-pressure heater. The drainage structure of the No. 3 high-pressure heater includes the original drainage pipe and the additional drainage pipe; The original drainage pipe is used to drain the condensate from the No. 3 high-pressure heater to the deaerator; the additional drainage pipe is used to drain the condensate from the No. 3 high-pressure heater to the deaerator's drain pipe.
3. The high-pressure heater drainage system according to claim 1, characterized in that, The inlet of the additional drainage pipe is connected to the outlet of the high-pressure heater, and the outlet of the additional drainage pipe is connected to the outlet of the outlet valve of the deaerator's drain pipe.
4. The high-pressure heater drainage system according to claim 3, characterized in that, The deaerator's drainage system includes multiple drainage pipes, and the outlet of the additional drainage pipe is connected to the outlet of the outlet valve of one of the multiple drainage pipes.
5. The high-pressure heater drainage system according to claim 1, characterized in that, The additional drainage pipe is equipped with a check valve and a pneumatic regulating valve.
6. The high pressure heater drainage system of claim 1 wherein, Also includes: A high-pressure heater drainage device is used to drain the condensate in the high-pressure heater to the deaerator's drain pipe through an additional drainage pipe of the high-pressure heater, or to drain the condensate in the high-pressure heater to the deaerator through the original drainage pipe of the high-pressure heater.
7. The high-pressure heater drainage system according to claim 1, characterized in that, The high-pressure heater drainage device includes: a current operating load acquisition module and a drainage module; The current operating load acquisition module is used to acquire the current operating load of the corresponding steam turbine generator set; The drainage module is used to drain the condensate in the high-pressure heater of the steam turbine generator set to the drain pipe of the deaerator through the additional drainage pipe of the high-pressure heater when the current operating load meets the first preset condition. When the current operating load meets the second preset condition, the condensate in the high-pressure heater of the steam turbine generator set is discharged to the deaerator through the original drain pipe of the high-pressure heater.
8. A high pressure heater dehydrating method, characterized by, include: The condensate from the high-pressure heater of the steam turbine generator set is drained into the deaerator's drain pipe through the additional drain pipe of the high-pressure heater, or The condensate in the high-pressure heater of the steam turbine generator set is drained to the deaerator through the original drain pipe of the high-pressure heater; The number of valves in the additional drainage pipe is less than the number of valves in the original drainage pipe; the rise height of the drain pipe from the high-pressure heater to the deaerator is lower than the rise height from the high-pressure heater to the deaerator.
9. The high pressure heater water draining method of claim 8, wherein, Also includes: Before draining the condensate from the high-pressure heater of the steam turbine generator set to the deaerator drain pipe through the additional drain pipe of the high-pressure heater, or before draining the condensate from the high-pressure heater of the steam turbine generator set to the deaerator through the original drain pipe of the high-pressure heater, the current operating load of the steam turbine generator set is obtained. When the current operating load meets the first preset condition, the condensate in the high-pressure heater of the steam turbine generator set is discharged to the drain pipe of the deaerator through the additional drain pipe of the high-pressure heater. When the current operating load meets the second preset condition, the condensate in the high-pressure heater of the steam turbine generator set is discharged to the deaerator through the original drain pipe of the high-pressure heater.
10. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the high-pressure heater hydrophobication method as described in claim 8 or 9.
11. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the high-pressure heater hydrophobic method as described in claim 8 or 9.