CN112432151B - Temperature and pressure control system and method capable of assisting soot blowing for boiler of thermal power plant - Google Patents
Temperature and pressure control system and method capable of assisting soot blowing for boiler of thermal power plant Download PDFInfo
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- CN112432151B CN112432151B CN202011432873.1A CN202011432873A CN112432151B CN 112432151 B CN112432151 B CN 112432151B CN 202011432873 A CN202011432873 A CN 202011432873A CN 112432151 B CN112432151 B CN 112432151B
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- 239000004071 soot Substances 0.000 title claims abstract description 43
- 238000007664 blowing Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000017525 heat dissipation Effects 0.000 claims abstract description 88
- 230000001105 regulatory effect Effects 0.000 claims abstract description 10
- 238000012546 transfer Methods 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 14
- 238000012545 processing Methods 0.000 claims description 14
- 230000033228 biological regulation Effects 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 7
- 238000007405 data analysis Methods 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004891 communication Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000013461 design Methods 0.000 description 3
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- 238000010521 absorption reaction Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
- F23J3/02—Cleaning furnace tubes; Cleaning flues or chimneys
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The invention discloses a temperature and pressure control system capable of assisting soot blowing for a boiler in a thermal power plant and a method thereof, wherein the temperature and pressure control system comprises a body, a regulating device and a heat dissipation device are respectively arranged on two sides of the body, the regulating device comprises a shell, the shell is hermetically connected with the outer wall of the body, a plurality of communicating frames matched with the body are arranged inside the shell, the communicating frames are in Contraband-shaped structures, a delivery pump matched with the body is arranged below the heat dissipation device, delivery pipes are respectively arranged between the delivery pump and the shell as well as between the delivery pipes and the communicating frames, control nozzles and control valves are respectively arranged between every two delivery pipes and the shell, the heat dissipation device comprises a heat dissipation frame, the heat dissipation frame is in a hollow slotted structure, and a plurality of heat dissipation holes are uniformly distributed in the side wall of the heat dissipation frame. The beneficial effects are that: the equipment can be used for effectively realizing constant temperature and pressure control, and can effectively convert and utilize heat energy and steam during the temperature and pressure control to reduce energy loss to the maximum extent, so that the equipment is more flexible and practical.
Description
Technical Field
The invention relates to the field of boilers, in particular to a temperature and pressure control system and method for a boiler of a thermal power plant, wherein the temperature and pressure control system and method can assist in soot blowing.
Background
So-called utility boilers are, in popular terms, boilers used by power plants to generate electricity. The general capacity is large, the current main unit is 600MW, the current advanced is an ultra-supercritical boiler, and the capacity can reach 1000 MW. Utility boilers mainly have two types: pulverized coal furnaces and circulating fluidized bed boilers. These two types of boilers are the main types used in power stations today. But no matter which kind of heating can generate a certain amount and quality of steam, according to the Chinese patent document with publication number CN106402910B, the disclosed intelligent soot blowing method for the boiler of the thermal power plant changes the heat absorption distribution condition of all levels of heating surfaces, redistributes the heat absorption proportion of all levels of heating surfaces to maintain the stability of steam temperature, reduces the use of trace desuperheating water and improves the economy, according to the Chinese patent document with publication number CN111507624A, the disclosed method and the device for obtaining the boiler efficiency of the thermal power plant can effectively improve the obtaining accuracy of the boiler efficiency of the thermal power plant with an air preheater bypass and can effectively improve the automation degree and the efficiency of the obtaining process of the boiler efficiency of the thermal power plant with the air preheater bypass, according to the Chinese patent document with publication number CN211261299U, the disclosed boiler of the thermal power plant greatly improves the natural gas heating effect, make the natural gas burning more abundant, energy-concerving and environment-protective effect has been reached, however, in the use of boiler, but be difficult to carry out warm-pressing control to it, the warm-pressing in the furnace of boiler is too high or low damage boiler easily, current equipment lacks very lack and carries out the warm-pressing control method, and during warm-pressing control, can lose the steam in a large amount of furnaces, if do not carry out effective utilization then can cause a large amount of energy losses, furnace can both carry out warm-pressing control period seldom, recycle the energy of control, the structure of control by temperature change if can be connected with other equipment simultaneously, can realize functions such as more ability circulation utilization and supplementary soot blowing.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
The invention provides a temperature and pressure control system capable of assisting soot blowing for a boiler of a thermal power plant and a method thereof, aiming at solving the technical problems in the prior art.
Therefore, the invention adopts the following specific technical scheme:
according to one aspect of the invention, a temperature and pressure control system for a boiler of a thermal power plant capable of assisting soot blowing is provided.
A temperature and pressure control system for a boiler of a thermal power plant and capable of assisting soot blowing comprises a body, wherein both sides of the body are respectively provided with a regulation device and a heat dissipation device, the regulation device comprises a shell, the shell is hermetically connected with the outer wall of the body, a plurality of communication frames matched with the body are arranged inside the shell, the communication frames are of Contraband-shaped structures, a delivery pump matched with the body is arranged below the heat dissipation device, delivery pipes are arranged between the delivery pump and the shell and between the delivery pumps and the communication frames, control nozzles and control valves are respectively arranged between every two delivery pipes and the shell, the heat dissipation device comprises a heat dissipation frame, the heat dissipation frame is of a hollow slotted structure, the side wall of the heat dissipation frame is provided with a plurality of uniformly distributed heat dissipation holes, and a plurality of heat dissipation pipes matched with the body are arranged inside the heat dissipation frame, the radiating pipe is in an Contraband-shaped structure, a plurality of spiral sheets matched with the radiating pipe are symmetrically arranged on one side of the radiating pipe away from the body, a plurality of radiating fins which are evenly distributed are arranged at two ends of the radiating pipe, a transfer pump is arranged at the middle position of one side of the radiating frame far away from the body, a water inlet pipe is arranged in the middle of one side of the transfer pump far away from the body, functional pipes matched with the radiating fins are symmetrically arranged on one side of the transfer pump close to the water inlet pipe, a processing box matched with the body is arranged at one end of the functional pipe far away from the transfer pump, a control starting box is arranged between the heat dissipation device and the regulating device, control connecting pipes are arranged among the control starting box, the heat dissipation device and the regulation and control device, the control connecting pipe respectively with the honeycomb duct with the cooling tube through connection, the control start-up case with be equipped with between the control connecting pipe rather than matched with solenoid electric valve.
Further, the control start box comprises a central control module, a valve control module, a transfer processing module, a temperature detection module, a pressure detection module, a database module, a data analysis module, a data matching module, a power connection module and an execution module, wherein the central control module is connected with the database module through the temperature detection module and the pressure detection module, the database module is connected with the data matching module through the data analysis module, and the data matching module is connected with the transfer processing module and the valve control module through the power connection module and the execution module respectively.
Furthermore, the radiating fin is of a concave structure with two copper sheets symmetrically distributed, a plurality of auxiliary sheets are arranged inside the radiating fin, and the auxiliary sheets are fixed in the radiating fin in an inserting mode.
Further, the fin with be equipped with the adapter sleeve between the cooling tube, just the adapter sleeve with 2 cm's space has between the cooling tube, the intermediate position of adapter sleeve inner wall be equipped with cooling tube fixed connection's supporting shoe.
Furthermore, the intercommunication frame is kept away from one side both ends of body all are equipped with rather than matched with water conservancy diversion frame, the inside of water conservancy diversion frame is equipped with rather than matched with honeycomb duct, just the honeycomb duct runs through the casing to extend to outside the casing, the honeycomb duct with be equipped with the control valve between the casing.
Furthermore, the inside of handling the case is equipped with adapter and discharge port rather than matched with respectively, just the material of handling the case is carbide tungsten steel material.
Furthermore, the top end and the bottom end of the heat dissipation device are respectively provided with a fan frame matched with the heat dissipation frame, and the inside of the fan frame is fixedly connected with a fan matched with the fan frame.
Furthermore, the outer wall of the functional tube is provided with a plurality of radiating convex points which are uniformly distributed, and the functional tube is spirally distributed in the radiating sheet in a penetrating way.
Furthermore, two corners of the heat dissipation tube are provided with guide boxes matched with the heat dissipation tube, guide tubes matched with the guide boxes are arranged in the guide boxes, and the guide tubes penetrate through the heat dissipation frame and extend out of the heat dissipation frame.
According to another aspect of the invention, a method of the temperature and pressure control system for the boiler of the thermal power plant capable of assisting soot blowing is further provided.
A temperature and pressure control system and method for a boiler of a thermal power plant capable of assisting soot blowing comprises the following steps:
respectively connecting a flow guide pipe, a water inlet pipe and a switching port in the equipment to corresponding equipment, and simultaneously connecting a delivery pump with a high-volume steam part in a hearth of the body;
after the equipment is connected, the temperature and the pressure in the hearth are started by the control starting box, when the temperature and the pressure are detected to be too high, the control starting box controls the starting of the heat dissipation device, the heat dissipation pipe in the control starting box is opened and communicated with the hearth valve, and the fan is started;
steam flows through the space and arrangement of the radiating pipes, in the flowing process, the radiating fins conduct heat in the flowing period, and are matched with the fan and coiled with the functional pipes to carry out large-scale heat dissipation, meanwhile, the functional pipes input low-temperature liquid through the transfer pump, so that the heat dissipation and energy exchange are realized, and the steam in the hearth can be independently led out to release pressure or used for other purposes through the guide pipes according to needs;
when the internal temperature is detected to be too low, the high-temperature steam device is connected into other high-temperature steam devices through the delivery pump and is transmitted into the shell and the communicating frame through the delivery pipe, so that the temperature inside and outside the body is increased rapidly;
according to the change of the use condition, the control starting box controls the opening of the electromagnetic control valve, the heat dissipation device is communicated with the regulation and control device, the steam circulates and circulates, and the extra extension environment is utilized to reduce the pressure;
when soot blowing is needed, the starting box is controlled to control the valves of the guide pipe and the guide pipe to be opened, the heat dissipation device is communicated with the regulation and control device, and the pipeline is connected with the soot blower to achieve auxiliary soot blowing.
The invention has the beneficial effects that: the control is pressed to the temperature that equipment can effectual realization invariant, and equipment can be effectual will carry out the heat energy during the control is pressed to the temperature and steam carries out the conversion utilization and carries out the reduction energy loss of maximize, furthermore, equipment can pass through loop configuration, when realizing the control is pressed to the temperature, resources such as steam that will utilize during the control that can be fine assist the soot blowing, realize the maximize utilization of the energy, equipment can also make the gas that produces during the control is pressed to the temperature through inserting more equipment and carry out better utilization or auxiliary assembly operation, thereby make equipment more nimble and practical.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a temperature and pressure control system for a boiler of a thermal power plant capable of assisting soot blowing according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a regulating device of a temperature and pressure control system for a boiler of a thermal power plant, which can assist in soot blowing, according to an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a heat dissipation device of a thermal power plant boiler temperature and pressure control system capable of assisting soot blowing according to an embodiment of the invention;
FIG. 4 is a sectional view of a thermal power plant boiler temperature and pressure control system capable of assisting soot blowing according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a heat sink of a temperature and pressure control system for a boiler of a thermal power plant capable of assisting soot blowing according to an embodiment of the invention;
fig. 6 is a schematic flow chart of a control start box of a thermal power plant boiler temperature and pressure control system capable of assisting soot blowing and a method thereof according to an embodiment of the invention.
In the figure:
1. a body; 2. a regulating device; 3. a heat sink; 4. a housing; 5. a communicating frame; 6. a heat dissipation frame; 7. a radiating pipe; 8. a delivery pump; 9. a delivery pipe; 10. controlling the nozzle; 11. a control valve; 12. a transfer pump; 13. a water inlet pipe; 14. a heat sink; 15. a functional tube; 16. a treatment tank; 17. controlling a starting box; 18. controlling the connecting pipe; 19. an electromagnetic control valve; 20. a central control module; 21. a valve control module; 22. a transfer processing module; 23. a temperature detection module; 24. a pressure detection module; 25. a database module; 26. a data analysis module; 27. a data matching module; 28. a power connection module; 29. an execution module; 30. an auxiliary sheet; 31. connecting sleeves; 32. a supporting block; 33. a flow guiding frame; 34. a flow guide pipe; 35. a control valve; 36. a fan frame; 37. a fan; 38. a guide box; 39. a guide tube; 40. a transfer port; 41. and (7) discharging the air.
Detailed Description
For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the invention, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.
According to the embodiment of the invention, the temperature and pressure control system capable of assisting soot blowing for the boiler of the thermal power plant is provided.
As shown in fig. 1-6, the temperature and pressure control system for a boiler of a thermal power plant, which is used for assisting soot blowing, according to an embodiment of the present invention includes a main body 1, a regulating device 2 and a heat dissipation device 3 are respectively disposed on two sides of the main body 1, the regulating device 2 includes a casing 4, the casing 4 is hermetically connected to an outer wall of the main body 1, a plurality of communication frames 5 matched with the main body 1 are disposed inside the casing 4, the communication frames 5 are Contraband-shaped, a delivery pump 8 matched with the main body 1 is disposed below the heat dissipation device 3, delivery pipes 9 are disposed between the delivery pump 8 and the casing 4 and between the communication frames 5, control nozzles 10 and control valves 11 are respectively disposed between every two delivery pipes 9 and the casing 4, the heat dissipation device 3 includes a heat dissipation frame 6, and the heat dissipation frame 6 is a hollow slotted structure, the side wall of the heat dissipation frame 6 is provided with a plurality of heat dissipation holes which are uniformly distributed, the interior of the heat dissipation frame 6 is provided with a plurality of heat dissipation pipes 7 which are matched with the body 1, the heat dissipation pipes 7 are in Contraband-shaped structures, one side of each heat dissipation pipe 7, which is far away from the body 1, is symmetrically provided with a plurality of spiral fins which are matched with the corresponding spiral fins, two ends of each heat dissipation pipe 7 are provided with a plurality of heat dissipation fins 14 which are uniformly distributed, the middle position of one side of the heat dissipation frame 6, which is far away from the body 1, is provided with a transfer pump 12, the middle position of one side of the transfer pump 12, which is far away from the body 1, is provided with a water inlet pipe 13, one side of the transfer pump 12, which is close to the water inlet pipe 13, is symmetrically provided with a functional pipe 15 which is matched with the heat dissipation fins 14, one end of the functional pipe 15, which is far away from the transfer pump 12, is provided with a processing box 16 which is matched with the body 1, and a control starting box 17 are arranged between the heat dissipation device 3 and the regulation device 2, control starting box 17 with heat abstractor 3 with all be equipped with control connection pipe 18 between the regulation and control device 2, control connection pipe 18 respectively with honeycomb duct 34 with cooling tube 7 through connection, control starting box 17 with be equipped with between the control connection pipe 18 rather than matched with solenoid electric valve 19.
In one embodiment, the control start box 17 includes a central control module 20, a valve control module 21, a relay processing module 22, a temperature detection module 23, a pressure detection module 24, a database module 25, a data analysis module 26, a data matching module 27, a power connection module 28 and an execution module 29, wherein the central control module 20 is connected with the database module 25 through the temperature detection module 23 and the pressure detection module 24, the database module 25 is connected with the data matching module 27 through the data analysis module 26, and the data matching module 27 is connected with the execution module 29 through the power connection module 28, the relay processing module 22 and the valve control module 21, respectively.
In one embodiment, the heat sink 14 is a concave structure with two symmetrically distributed copper sheets, a plurality of auxiliary sheets 30 are arranged inside the heat sink 14, and the auxiliary sheets 30 are inserted and fixed in the heat sink 14, and as can be seen from the above design, the auxiliary sheets 30 can assist and support the heat dissipation capability of the heat sink 14.
In one embodiment, a connecting sleeve 31 is arranged between the heat sink 14 and the heat dissipating tube 7, a gap of 2cm is formed between the connecting sleeve 31 and the heat dissipating tube 7, and a supporting block 32 fixedly connected with the heat dissipating tube 7 is arranged at the middle position of the inner wall of the connecting sleeve 31.
In an embodiment, both ends of one side of the communicating frame 5 far away from the body 1 are respectively provided with a diversion frame 33 matched with the communicating frame, a diversion pipe 34 matched with the diversion frame 33 is arranged inside the diversion frame 33, the diversion pipe 34 penetrates through the shell 4 and extends out of the shell 4, a control valve 35 is arranged between the diversion pipe 34 and the shell 4, and as can be seen from the design, the diversion pipe 34 can enable the regulating and controlling device 2 to have flexibility and can be matched with a heat radiating device to realize the effect of reducing the temperature and pressure during the use period, and can penetrate steam in a hearth into a soot blower through being connected into pump equipment to realize the auxiliary soot blowing effect.
In one embodiment, the interior of the processing box 16 is provided with an adapter 40 and a discharge port 41 respectively, and the material of the processing box 16 is cemented tungsten steel, which makes the two structures more heat resistant, thereby increasing the strength and durability.
In one embodiment, the top end and the bottom end of the heat dissipation device 3 are both provided with a fan frame 36 matched with the heat dissipation frame 6, and the inside of the fan frame 36 is fixedly connected with a fan 37 matched with the fan frame 36, so that the heat dissipation effect can be accelerated by using the fan 37, and the temperature control effect is more efficient.
In one embodiment, the outer wall of the functional tube 15 is provided with a plurality of radiating convex points which are uniformly distributed, and the functional tube 15 is spirally distributed in the radiating fin 14 in a penetrating manner, so that the design is not difficult to see, the contact area can be increased by the spiral distribution, and the space filter is increased, so that the heat conduction can be better carried out, the redundant heat energy can be utilized, and the energy conversion and utilization are realized.
In one embodiment, the two corners of the heat dissipation pipe 7 are provided with the guide boxes 38 matched with the heat dissipation pipe 7, the guide pipes 39 matched with the guide boxes 38 are arranged inside the guide boxes 38, and the guide pipes 39 penetrate through the heat dissipation frame 6 and extend out of the heat dissipation frame 6.
For the convenience of understanding the technical solutions of the present invention, the following detailed description will be made on the working principle or the operation mode of the present invention in the practical process.
A temperature and pressure control system and a method thereof for a boiler of a thermal power plant are capable of assisting soot blowing, and are characterized in that the method for the temperature and pressure control system for the boiler of the thermal power plant is capable of assisting soot blowing, and comprises the following steps:
step S101: the honeycomb duct 34, the guide tube 39, the water inlet pipe 13 and the adapter 40 in the equipment are respectively connected with the corresponding equipment, and the delivery pump 8 is connected with the high-steam part in the hearth of the body 1;
step S103: after the equipment is connected, the temperature and the pressure in the hearth are started by the control starting box 17, when the temperature and the pressure are detected to be too high, the control starting box 17 controls the heat dissipation device 3 to be started, the heat dissipation pipe 7 in the hearth is opened and communicated with a hearth valve, and the fan 37 is started;
step S105: steam flows through the space and arrangement of the radiating pipe 7, in the flowing process, the radiating fins 14 conduct heat during flowing, and cooperate with the fan and the functional pipes 15 coiled therein to conduct large-scale heat radiation, meanwhile, as the functional pipes 15 input low-temperature liquid through the transfer pump 12, energy exchange is realized while heat radiation is realized, and the steam in the hearth can be separately led out to release pressure or used for other purposes through the guide pipe 39 as required;
step S107: when the internal temperature is detected to be too low, the high-temperature steam device is connected into other high-temperature steam devices through the delivery pump 8 and is transmitted into the shell 4 and the communicating frame 5 through the delivery pipe 9, so that the temperature inside and outside the body 1 is increased rapidly;
step S109: according to the change of the use condition, the control starting box 17 controls the opening of the electromagnetic control valve 19, the heat dissipation device 3 is communicated with the regulation and control device 2, the steam circulates and circulates, and the extra extension environment is utilized to reduce the pressure;
step S111: when soot blowing is needed, the control starting box 17 controls the valves of the guide pipe 34 and the guide pipe 39 to be opened, the heat dissipation device 3 is communicated with the regulation and control device 2, and the pipeline is connected with a soot blower to realize auxiliary soot blowing.
In summary, according to the technical scheme of the invention, the device can effectively realize constant temperature and pressure control, can effectively convert and utilize heat energy and steam during the temperature and pressure control to reduce energy loss to the maximum extent, can well assist in blowing soot of resources such as steam and the like utilized during the control through a circulation structure while realizing the temperature and pressure control, and can realize the maximum utilization of energy, and can also make better utilization of gas generated during the temperature and pressure control or auxiliary equipment operation through accessing more devices, so that the device is more flexible and practical.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The warm-pressing control system capable of assisting soot blowing for the boiler in the thermal power plant is characterized by comprising a body (1) and a flow guide pipe (34), wherein a regulating device (2) and a heat dissipation device (3) are respectively arranged on two sides of the body (1), the regulating device (2) comprises a shell (4), the shell (4) is hermetically connected with the outer wall of the body (1), a plurality of communicating frames (5) matched with the body (1) are arranged inside the shell (4), the communicating frames (5) are of Contraband-shaped structures, a conveying pump (8) matched with the body (1) is arranged below the heat dissipation device (3), conveying pipes (9) are arranged between the conveying pump (8) and the shell (4) and between the communicating frames (5), and control nozzles (10) and control valves (11) are respectively arranged between every two conveying pipes (9) and the shell (4), the heat dissipation device (3) comprises a heat dissipation frame (6), the heat dissipation frame (6) is of a hollow slotted structure, the side wall of the heat dissipation frame (6) is provided with a plurality of heat dissipation holes which are uniformly distributed, the interior of the heat dissipation frame (6) is provided with a plurality of heat dissipation pipes (7) which are matched with the body (1), the heat dissipation pipes (7) are of an Contraband-shaped structure, one side of each heat dissipation pipe (7) far away from the body (1) is symmetrically provided with a plurality of spiral fins which are matched with the body, the two ends of each heat dissipation pipe (7) are provided with a plurality of heat dissipation fins (14) which are uniformly distributed, the middle position of one side of the heat dissipation frame (6) far away from the body (1) is provided with a transfer pump (12), the middle position of one side of each transfer pump (12) far away from the body (1) is provided with a water inlet pipe (13), one side of each transfer pump (12) near the water inlet pipe (13) is symmetrically provided with a functional pipe (15) which is matched with the heat dissipation fins (14), the one end that transfer pump (12) was kept away from in function pipe (15) be equipped with body (1) matched with handle case (16), heat abstractor (3) with be equipped with control between regulation and control device (2) and start case (17), control start case (17) with all be equipped with control connecting pipe (18) between heat abstractor (3) and regulation and control device (2), control connecting pipe (18) respectively with honeycomb duct (34) with cooling tube (7) through connection, be equipped with between control start case (17) and control connecting pipe (18) rather than matched with solenoid electric valve (19), one side both ends that body (1) were kept away from in intercommunication frame (5) all are equipped with rather than matched with water conservancy diversion frame (33), the inside of water conservancy diversion frame (33) is equipped with rather than matched with honeycomb duct (34), just honeycomb duct (34) run through casing (4) to outside extending to casing (4), honeycomb duct (34) with be equipped with control valve (35) between casing (4), two corners of cooling tube (7) all are equipped with rather than matched with guide box (38), the inside of guide box (38) is equipped with rather than matched with guide pipe (39), just guide pipe (39) run through heat dissipation frame (6), and extend outside heat dissipation frame (6).
2. The temperature and pressure control system for the boiler of the heat-engine plant capable of assisting soot blowing as claimed in claim 1, wherein the control starting box (17) comprises a central control module (20), a valve control module (21), a transfer processing module (22), a temperature detection module (23), a pressure detection module (24), a database module (25), a data analysis module (26), a data matching module (27), a power connection module (28) and an execution module (29), wherein the central control module (20) is connected with the database module (25) through the temperature detection module (23) and the pressure detection module (24), the database module (25) is connected with the data matching module (27) through the data analysis module (26), and the data matching module (27) is respectively connected with the data matching module (27) through the power connection module (28), The transit processing module (22) and the valve control module (21) are connected with the execution module (29).
3. The temperature and pressure control system for the boiler in the thermal power plant capable of assisting soot blowing as claimed in claim 1, wherein the heat radiating fin (14) is of a concave structure with two copper sheets symmetrically distributed, a plurality of auxiliary sheets (30) are arranged inside the heat radiating fin (14), and the auxiliary sheets (30) are fixed in the heat radiating fin (14) in an inserting manner.
4. The temperature and pressure control system for the boiler of the heat-engine plant capable of assisting soot blowing as claimed in claim 3, wherein a connecting sleeve (31) is arranged between the heat sink (14) and the heat dissipation pipe (7), a gap of 2cm is formed between the connecting sleeve (31) and the heat dissipation pipe (7), and a supporting block (32) fixedly connected with the heat dissipation pipe (7) is arranged at a middle position of an inner wall of the connecting sleeve (31).
5. The temperature and pressure control system for the boiler of the thermal power plant capable of assisting soot blowing according to claim 1, wherein an adapter port (40) and a discharge port (41) matched with the processing box (16) are respectively arranged in the processing box (16), and the processing box (16) is made of hard alloy tungsten steel.
6. The temperature and pressure control system for the boiler of the thermal power plant capable of assisting soot blowing as claimed in claim 1, wherein a blower frame (36) matched with the heat dissipation frame (6) is arranged at each of the top end and the bottom end of the heat dissipation device (3), and a blower (37) matched with the blower frame (36) is fixedly connected to the inside of the blower frame (36).
7. The temperature and pressure control system for the boiler of the thermal power plant capable of assisting soot blowing as claimed in claim 1, wherein the outer wall of the functional tube (15) is provided with a plurality of uniformly distributed heat dissipation salient points, and the functional tube (15) is spirally distributed in the heat dissipation fins (14).
8. A temperature and pressure control method for a boiler of a thermal power plant, which is capable of assisting soot blowing, and is characterized in that the method is used for the temperature and pressure control system for the boiler of the thermal power plant, which is capable of assisting soot blowing, according to any one of claims 1 to 7, and comprises the following steps:
a guide pipe (34), a guide pipe (39), a water inlet pipe (13) and a switching port (40) in the device are respectively connected into the corresponding devices, and meanwhile, a delivery pump 8 is connected with a high-quantity steam part in a hearth of the body (1);
after the equipment is connected, the temperature and the pressure in the hearth are started by the controlled starting box 17, when the temperature and the pressure are detected to be too high, the controlled starting box (17) controls the heat dissipation device (3) to be started, the heat dissipation pipe (7) in the controlled starting box is opened and communicated with a hearth valve, and the fan (37) is started at the same time;
steam flows through the space and arrangement of the radiating pipes (7), in the flowing process, the radiating fins (14) conduct heat during flowing, and are matched with the fan and coiled with the functional pipes (15) therein to conduct large-scale heat radiation, meanwhile, as the functional pipes (15) input low-temperature liquid through the transfer pump (12), the heat radiation and energy exchange are realized, and the steam in the hearth can be independently led out to release pressure or used for other purposes through the guide pipes (39) according to needs;
when the internal temperature is detected to be too low, the high-temperature steam device is connected into other high-temperature steam devices through the delivery pump (8) and is transmitted into the shell (4) and the communicating frame (5) through the delivery pipe (9), so that the temperature inside and outside the body (1) is increased rapidly;
according to the change of the use condition, the control starting box (17) controls the opening of the electromagnetic control valve (19), the heat dissipation device (3) is communicated with the regulation and control device (2), the steam circulates and circulates, and the extra extension environment is utilized to reduce the pressure;
when soot blowing is needed, the control starting box (17) controls the valves of the guide pipe (34) and the guide pipe (39) to be opened, the heat dissipation device (3) is communicated with the regulation and control device (2), and the pipeline is connected with the soot blower to achieve auxiliary soot blowing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011432873.1A CN112432151B (en) | 2020-12-09 | 2020-12-09 | Temperature and pressure control system and method capable of assisting soot blowing for boiler of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011432873.1A CN112432151B (en) | 2020-12-09 | 2020-12-09 | Temperature and pressure control system and method capable of assisting soot blowing for boiler of thermal power plant |
Publications (2)
| Publication Number | Publication Date |
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| CN112432151A CN112432151A (en) | 2021-03-02 |
| CN112432151B true CN112432151B (en) | 2022-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011432873.1A Expired - Fee Related CN112432151B (en) | 2020-12-09 | 2020-12-09 | Temperature and pressure control system and method capable of assisting soot blowing for boiler of thermal power plant |
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| CN (1) | CN112432151B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5855609A (en) * | 1981-09-30 | 1983-04-02 | Hitachi Eng Co Ltd | Control method for soot blower |
| AU2003248824A1 (en) * | 2002-07-09 | 2004-01-23 | Clyde Bergemann, Inc. | Multi-media rotating sootblower and automatic industrial boiler cleaning system |
| CN105180142B (en) * | 2015-09-02 | 2017-05-31 | 华北电力科学研究院有限责任公司 | A kind of soot blowing heating coil hydrophobic and steam recovery system and method |
| CN209540854U (en) * | 2019-02-14 | 2019-10-25 | 安徽华电芜湖发电有限公司 | A kind of power generation station-service boiler overheating cooling device |
| CN210891604U (en) * | 2019-06-14 | 2020-06-30 | 中机国能电力工程有限公司 | Energy-saving auxiliary steam system |
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2020
- 2020-12-09 CN CN202011432873.1A patent/CN112432151B/en not_active Expired - Fee Related
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