CN219222367U - Comprehensive utilization power generation system for boiler gas and saturated steam - Google Patents
Comprehensive utilization power generation system for boiler gas and saturated steam Download PDFInfo
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- CN219222367U CN219222367U CN202223409699.6U CN202223409699U CN219222367U CN 219222367 U CN219222367 U CN 219222367U CN 202223409699 U CN202223409699 U CN 202223409699U CN 219222367 U CN219222367 U CN 219222367U
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- 238000010248 power generation Methods 0.000 title claims abstract description 23
- 229920006395 saturated elastomer Polymers 0.000 title claims abstract description 22
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 73
- 239000003546 flue gas Substances 0.000 claims abstract description 73
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000007789 gas Substances 0.000 claims abstract description 31
- 238000012546 transfer Methods 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 239000000428 dust Substances 0.000 claims description 30
- 230000005484 gravity Effects 0.000 claims description 8
- 239000000779 smoke Substances 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000002485 combustion reaction Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
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- 238000004064 recycling Methods 0.000 description 1
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- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model discloses a comprehensive utilization power generation system for boiler gas and saturated steam, which comprises a boiler, a boiler steam drum, a steam generator water-cooling wall, a steam turbine, a generator, a condenser, a cooling tower, a water supply pump, a normal-temperature water preheating device, a blower, an air preheating device, an induced draft fan and a chimney, wherein the boiler is connected with the boiler steam drum; a flue gas box is arranged beside the boiler, a high-temperature flue gas transfer pipe is arranged at the top of the flue gas box, and the high-temperature flue gas transfer pipe is communicated with a flue gas cavity and a high-temperature flue gas outlet of the boiler; the normal temperature water preheating device and the air preheating device are vertically overlapped and installed in the flue gas box and comprise a plurality of heat exchange modules, the top and the bottom of the normal temperature water preheating device and the air preheating device are respectively provided with a connecting cushion block at the left end and the right end, and the connecting cushion blocks are directly connected to the wall of the flue gas box or connected to the wall of the flue gas box through mounting plates. The modular design is convenient for combining normal-temperature water preheating devices and air preheating devices with different sizes according to needs, and meanwhile, the modular water preheating device is simple in structure and easy to assemble.
Description
Technical Field
The utility model relates to the technology in the fields of energy recycling and gas power generation of boiler equipment, in particular to a comprehensive utilization power generation system for boiler gas and saturated steam.
Background
The air preheater, for short, is a device capable of improving heat exchange performance of a boiler, and mainly aims to utilize high-temperature flue gas exhausted from a flue of the boiler to exchange heat with a heat storage element in the air preheater and preheat air to be introduced into the boiler in advance, so that the air is heated and then enters the boiler, and heat loss in the boiler is reduced.
In the prior art, a comprehensive utilization power generation system for surplus blast furnace gas and surplus saturated steam in a steel mill comprises a gas boiler combustion utilization system, a waste saturated steam waste heat utilization system, a steam turbine power generation system and an auxiliary system. The air preheater heats normal-temperature air by utilizing flue gas waste heat of combustion of the hearth in a heat exchange mode, then the air is mixed with coal gas at a nozzle through a hot air pipeline to enter the hearth for combustion, and high-temperature flue gas after combustion sequentially passes through the high-low temperature superheater, the high-low temperature economizer and the air preheater and then is conveyed into a chimney through an induced draft fan, wherein a single-pressure thermodynamic system is adopted by the gas boiler; superheated steam (self-produced and externally supplied) of the gas boiler is sent to a main valve of a steam turbine through a main steam pipeline, and the steam pushes the steam turbine to apply work and drive a generator to generate power, and then exhaust steam is condensed into water through a condenser. The method comprehensively utilizes secondary energy, improves the boiler performance and increases the output of the steam quantity of the boiler.
However, the high-low temperature superheater, the high-low temperature economizer and the air preheater are respectively and independently designed and manufactured, and the sizes of the required high-low temperature superheater, the high-low temperature economizer and the air preheater are different for different boiler equipment, so that the applicant carefully researches a modularized product which can be combined into devices with different sizes according to needs to achieve the purposes of facilitating mass production and reducing the difficulty of production design and production cost.
Disclosure of Invention
In view of the above, the present utility model aims at overcoming the disadvantages of the prior art, and its main objective is to provide a power generation system for comprehensive utilization of boiler gas and saturated steam, which is modularized, and is convenient for combining normal temperature water preheating devices and air preheating devices with different sizes as required, and meanwhile, has a simple structure, and is easy to assemble.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a power generation system for comprehensively utilizing boiler gas and saturated steam comprises a boiler, a boiler steam drum, a steam generator water-cooled wall, a steam turbine, a generator, a condenser, a cooling tower, a water supply pump, a normal-temperature water preheating device, a blower, an air preheating device, an induced draft fan and a chimney;
a flue gas box is arranged beside the boiler, a flue gas cavity which is penetrated up and down is arranged in the flue gas box, a high-temperature flue gas transfer pipe is arranged at the top of the flue gas box, and the high-temperature flue gas transfer pipe is communicated with the flue gas cavity and a high-temperature flue gas outlet of the boiler; the normal-temperature water preheating device and the air preheating device are arranged in the flue gas box in an up-down overlapping manner;
the normal-temperature water preheating device and the air preheating device comprise a plurality of heat exchange modules, each heat exchange module comprises a heat exchange tube extending transversely to the left and the right and heat exchange plates sleeved outside the heat exchange tube and arranged at intervals along the left and the right directions, and flue gas circulation gaps are reserved between adjacent heat exchange plates; the heat exchange modules of the normal-temperature water preheating device and the air preheating device are spliced in a layered manner side by side along the front and back, and then are stacked up and down along the front and back, and the ends of the heat exchange pipes of the adjacent heat exchange modules are connected through bent pipes, so that the normal-temperature water preheating device and the air preheating device respectively form a water flow channel and an air flow channel correspondingly;
the top, the left and the right ends of the top and the bottom of the normal-temperature water preheating device and the air preheating device are respectively provided with a connecting cushion block, and the connecting cushion blocks are directly connected to the wall of the flue gas box or connected to the wall of the flue gas box through mounting plates.
As a preferable scheme, the box wall of the flue gas box comprises a left side wall, a right side wall, a front side wall and a rear side wall, and the connecting cushion blocks at the left end and the right end are directly connected to the corresponding left side wall and the right side wall of the flue gas box or connected to the corresponding left side wall and the right side wall of the flue gas box through mounting plates.
As a preferable scheme, the mounting plates are provided with six layers, namely an upper layer, a middle layer and a lower layer, which are respectively arranged above the connecting cushion blocks at the left end and the right end of the top of the normal-temperature water preheating device, below the connecting cushion blocks at the left end and the right end of the bottom of the normal-temperature water preheating device and below the connecting cushion blocks at the left end and the right end of the bottom of the air preheating device; the connecting cushion blocks at the left and right ends of the top of the air preheating device are respectively connected to the bottoms of the mounting plates at the left and right ends of the middle layer;
the three mounting plates at the left end are connected to the left side wall of the smoke box, and the three mounting plates at the right end are connected to the right side wall of the smoke box.
As a preferable scheme, the bottom of flue gas case is provided with the diapire, the diapire is connected in the bottom of left side wall, right side wall, preceding lateral wall and back lateral wall, the diapire below is provided with the support chassis.
As a preferred embodiment, the mounting plate of the bottom of the air preheating device is supported on the bottom wall.
As a preferable scheme, the heat exchange modules are provided with end plates corresponding to the left and right ends of the heat exchange tubes, and adjacent heat exchange modules are spliced and positioned through the end plates.
As a preferable scheme, the end plates are square, the outer end surfaces of the end plates are respectively provided with a connecting screw hole at four corners, two ends of each adjacent end plate are connected with the adjacent connecting screw holes through screws of the connecting plates, two ends of each connecting plate are respectively provided with a through hole with the corresponding size with the connecting screw hole, and the screws penetrate through the through holes at the outer sides of the connecting plates and are connected in the connecting screw holes through screws.
As a preferred scheme, the draught fan is connected between the lower ends of the chimney and the flue gas box, a dust removing device is further arranged between the draught fan and the lower ends of the flue gas box, and the dust removing device is a gravity dust removing device and comprises a dust removing cavity, a flow blocking plate arranged in a staggered mode along the air flow direction and a dust collecting cavity arranged at the bottom of the dust removing cavity.
As a preferable scheme, the chimney is provided with a side air inlet and a top air outlet, the chimney is provided with an inclined plate extending upwards in an inclined mode, the position of the inclined plate is higher than that of the side air inlet, smoke entering the side air inlet hits the bottom surface of the inclined plate, and a small amount of dust falls to the bottom in the chimney.
Compared with the prior art, the utility model has obvious advantages and beneficial effects, in particular, the technical proposal shows that the room temperature water preheating device and the air preheating device both comprise a plurality of heat exchange modules, each heat exchange module comprises a heat exchange pipe extending transversely to the left and the right and heat exchange plates sleeved outside the heat exchange pipe and arranged at intervals along the left and the right direction, and flue gas circulation gaps are reserved between adjacent heat exchange plates; the heat exchange modules of the normal-temperature water preheating device and the air preheating device are spliced in a layered manner side by side along the front and back, and then are stacked up and down along the front and back, and the ends of the heat exchange pipes of the adjacent heat exchange modules are connected through bent pipes, so that the normal-temperature water preheating device and the air preheating device respectively form a water flow channel and an air flow channel correspondingly; the top, the left and the right ends of the top and the bottom of the normal-temperature water preheating device and the air preheating device are respectively provided with a connecting cushion block, and the connecting cushion blocks are directly connected to the wall of the flue gas box or connected to the wall of the flue gas box through mounting plates. Therefore, the modular design is convenient for combining the normal-temperature water preheating device and the air preheating device with different sizes according to the needs, and meanwhile, the modular water preheating device is simple in structure and easy to assemble, thereby being beneficial to mass production and reducing the production design difficulty and the production cost.
In order to more clearly illustrate the structural features and efficacy of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a diagram showing a connection structure of a power generation system for comprehensive utilization of boiler gas and saturated steam according to an embodiment of the present utility model;
FIG. 2 is an exploded view of a normal temperature water preheating device and an air preheating device of a boiler gas and saturated steam comprehensive utilization power generation system provided by an embodiment of the present utility model;
FIG. 3 is an exploded view of a room temperature water preheating device and an air preheating device of a power generation system using boiler gas and saturated steam in combination according to another embodiment of the present utility model.
The attached drawings are used for identifying and describing: boiler 1, boiler drum 2, steam generator water-cooled wall 3, steam turbine 4, generator 5, condenser 6, cooling tower 7, feed pump 8, normal temperature water preheating device 9, air-blower 10, air preheating device 11, draught fan 12, chimney 13, flue gas box 14, high temperature flue gas transfer pipe 15, heat transfer module 16, heat exchanger plate 17, end plate 18, return bend 19, connection cushion 20, mounting panel 21, swash plate 22, dust collector 23, connection piece 24.
Detailed Description
Referring to fig. 1 to 3, specific structures of embodiments of the present utility model are shown.
In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.
The utility model provides a boiler gas and saturated steam comprehensive utilization power generation system, includes boiler 1 (refer to gas boiler), boiler steam drum 2, steam generator water-cooling wall 3, steam turbine 4, generator 5, condenser 6, cooling tower 7, feed pump 8, normal atmospheric temperature water preheating device 9, air-blower 10, air preheating device 11, draught fan 12 and chimney 13, and the function of these parts and the principle that constitutes comprehensive utilization power generation system are industry conventional technology.
The steam generator water-cooled wall 3 is paved on the inner side wall of a hearth of the boiler and is connected with a boiler steam drum through a rising pipe and a falling pipe; the boiler drum is a mature technology existing in the industry, and the boiler drum 2 is an important compression element in a natural circulation boiler, and has the main functions of: the connecting hub for water heating, evaporation and overheating processes ensures normal water circulation of the boiler, a steam-water separation device and a continuous sewage discharging device are arranged in the connecting hub, so that the steam quality of the boiler is ensured, meanwhile, a certain water quantity is arranged in the connecting hub, a certain heat accumulating capacity is realized, the change speed of the steam pressure is alleviated, and the safety operation of the boiler is ensured by devices such as a pressure gauge, a water level gauge, accident water discharge, a safety valve and the like on the boiler drum 2. The normal temperature water preheating device 9 and the air preheating device 11 are positioned in a flue of a combustion chamber of the hearth and are sequentially arranged from top to bottom, ambient normal temperature gas enters the air preheating device 11 through a blower, hot air passing through the air preheating device 11 is connected with a gas conveying pipeline, and the induced draft fan 12 is connected with the chimney 13.
When the system is in operation, the gas regulating valve and the air regulating valve are firstly opened, the air preheating device 11 heats normal-temperature air in a heat exchange mode by utilizing the waste heat of flue gas combusted by the hearth, then the normal-temperature air and the gas are mixed together at the nozzle through the hot air pipeline to enter the hearth for combustion, the water cooling wall 3 of the steam generator arranged in the hearth is used as a steam generator, and the high-temperature flue gas after combustion is conveyed into the chimney 13 by the induced draft fan 12 after passing through the normal-temperature water preheating device 9 and the air preheating device 11 in sequence; superheated steam of the gas boiler is sent to a main valve of a steam turbine through a main steam pipeline, the steam pushes the steam turbine to do work and drive a generator to generate power, the high-speed flowing steam pushes a rotor of the steam turbine to rotate to form mechanical energy, the steam releasing thermal potential energy is discharged from a steam outlet at the lower part of the steam turbine to be waste steam, the waste steam is condensed into water through a condenser, a condensate pump conveys condensate water in a condenser hot well to a deoxidizing device, the deoxidized condensate water is heated by a water supply pump through a normal-temperature water preheating device 9, the heated water is sent into a boiler steam drum 2, and then heat exchange is performed in a water cooling wall 3 of the steam generator to form saturated steam, so that a complete steam-water circulation loop is formed.
In the present embodiment, the structures of the normal temperature water preheating device 9 and the air preheating device 11 will be mainly described, specifically:
the side of boiler 1 is provided with flue gas case 14, the case wall of flue gas case 14 is including left side wall, right side wall, preceding lateral wall and back lateral wall, the connection cushion of left and right end is directly or through the mounting panel connection on corresponding left side wall, the right side wall of flue gas case 14. The bottom of the flue gas box 14 is provided with a bottom wall, the bottom wall is connected to the bottom ends of the left side wall, the right side wall, the front side wall and the rear side wall, and a supporting underframe is arranged below the bottom wall. The inside of the flue gas box 14 is provided with a flue gas cavity which is penetrated up and down, the top of the flue gas box 14 is provided with a high-temperature flue gas transfer pipe 15, and the high-temperature flue gas transfer pipe 15 is communicated with the flue gas cavity and a high-temperature flue gas outlet of the boiler 1; the normal-temperature water preheating device 9 and the air preheating device 11 are arranged in the flue gas box 14 in an up-down overlapping manner;
the normal temperature water preheating device 9 and the air preheating device 11 comprise a plurality of heat exchange modules 16, each heat exchange module 16 comprises a heat exchange tube extending transversely to the left and the right and heat exchange plates 17 sleeved outside the heat exchange tube and arranged at intervals along the left and the right directions, and flue gas circulation gaps are reserved between adjacent heat exchange plates 17; the heat exchange modules 16 of the normal temperature water preheating device 9 and the air preheating device 11 are respectively spliced side by side in a layered manner along the front and back, and are then stacked up and down along the upper and lower layers, and the heat exchange modules 16 are respectively provided with an end plate 18 corresponding to the left end and the right end of the heat exchange tube, and the adjacent heat exchange modules 16 are spliced and positioned through the end plates 18, for example, adjacent surfaces are buckled through convex-concave buckles. The ends of the heat exchange tubes of the adjacent heat exchange modules 16 are connected through the bent tube 19, so that the normal-temperature water preheating device 9 and the air preheating device 11 respectively form a water flow channel and an air flow channel.
The top and bottom left and right ends of the normal temperature water preheating device 9 and the air preheating device 11 are respectively provided with a connecting cushion block 20, and the connecting cushion blocks 20 are directly connected to the wall of the flue gas box 14 or connected to the wall of the flue gas box through a mounting plate 21. Preferably, the number of the mounting plates 21 is six, and each of the upper, middle and lower layers is respectively arranged above the connecting cushion blocks 20 at the left and right ends of the top of the normal temperature water preheating device 9, below the connecting cushion blocks 20 at the left and right ends of the bottom of the normal temperature water preheating device 9 and below the connecting cushion blocks 20 at the left and right ends of the bottom of the air preheating device 11; the connecting cushion blocks 20 at the left and right ends of the top of the air preheating device 11 are respectively connected to the bottoms of the mounting plates 21 at the left and right ends of the middle layer; the three mounting plates 21 at the left end are connected to the left side wall of the fume chamber 14, and the three mounting plates 21 at the right end are connected to the right side wall of the fume chamber 14. A mounting plate 21 at the bottom of the air preheating device 11 is supported on the bottom wall.
And the induced draft fan 12 is connected between the chimney 13 and the lower end of the flue gas box 14, a dust removing device 23 is further arranged between the induced draft fan 12 and the lower end of the flue gas box 14, the dust removing device 23 is a gravity dust removing device, no extra energy consumption is required, and the dust removing device comprises a dust removing cavity, a flow blocking plate arranged in a staggered manner along the air flow direction and a dust collecting cavity positioned at the bottom of the dust removing cavity. The gravity dust remover removes dust by utilizing the principle that the specific gravity of dust and gas is different, so that the raised dust is naturally precipitated from the gas by the gravity of the gravity dust remover, and the gravity dust remover has the advantages of simple structure, large volume, small resistance, easiness in maintenance and capability of avoiding overlarge dust content of discharged flue gas.
The chimney 13 is provided with a side air inlet and a top air outlet, the chimney 13 is provided with an inclined plate 22 extending upwards in an inclined mode, the position of the inclined plate 22 is higher than that of the side air inlet, smoke entering the side air inlet is collided with the bottom surface of the inclined plate, a small amount of dust falls into the inner bottom of the chimney 13, and a door capable of opening and closing is arranged on the other side of the chimney 13, namely the other side opposite to the side air inlet, so that dust can be cleaned conveniently.
As shown in fig. 3, an end plate 18 of another embodiment is shown, which is a splicing manner of end plates 18, wherein the end plates 18 are square, the outer end surfaces of the end plates are respectively provided with a connecting screw hole at four corners, two ends of each adjacent end plate 18 are connected to the adjacent connecting screw holes through screws of connecting sheets 24, two ends of each connecting sheet 24 are respectively provided with a through hole with a size corresponding to the connecting screw hole, and the screws pass through the through holes at the outer sides of the connecting sheets and are connected in the connecting screw holes in a threaded manner. Of course, the connection piece may be used to form a secondary connection reinforcement on the basis of the pre-assembly formed by the male and female snap between the adjacent faces of the end plate 18.
The utility model mainly comprises a plurality of heat exchange modules 16 for conveniently combining the normal-temperature water preheating device 9 and the air preheating device 11 with different sizes according to the needs, and meanwhile, the utility model has the advantages of simple structure and easy assembly, thereby achieving the purposes of facilitating mass production and reducing the production design difficulty and the production cost.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present utility model are still within the scope of the technical solutions of the present utility model.
Claims (9)
1. A power generation system for comprehensively utilizing boiler gas and saturated steam comprises a boiler, a boiler steam drum, a steam generator water-cooled wall, a steam turbine, a generator, a condenser, a cooling tower, a water supply pump, a normal-temperature water preheating device, a blower, an air preheating device, an induced draft fan and a chimney; the method is characterized in that:
a flue gas box is arranged beside the boiler, a flue gas cavity which is penetrated up and down is arranged in the flue gas box, a high-temperature flue gas transfer pipe is arranged at the top of the flue gas box, and the high-temperature flue gas transfer pipe is communicated with the flue gas cavity and a high-temperature flue gas outlet of the boiler; the normal-temperature water preheating device and the air preheating device are arranged in the flue gas box in an up-down overlapping manner;
the normal-temperature water preheating device and the air preheating device comprise a plurality of heat exchange modules, each heat exchange module comprises a heat exchange tube extending transversely to the left and the right and heat exchange plates sleeved outside the heat exchange tube and arranged at intervals along the left and the right directions, and flue gas circulation gaps are reserved between adjacent heat exchange plates; the heat exchange modules of the normal-temperature water preheating device and the air preheating device are spliced in a layered manner side by side along the front and back, and then are stacked up and down along the front and back, and the ends of the heat exchange pipes of the adjacent heat exchange modules are connected through bent pipes, so that the normal-temperature water preheating device and the air preheating device respectively form a water flow channel and an air flow channel correspondingly;
the top, the left and the right ends of the top and the bottom of the normal-temperature water preheating device and the air preheating device are respectively provided with a connecting cushion block, and the connecting cushion blocks are directly connected to the wall of the flue gas box or connected to the wall of the flue gas box through mounting plates.
2. The power generation system for comprehensive utilization of boiler gas and saturated steam according to claim 1, wherein: the wall of the flue gas box comprises a left side wall, a right side wall, a front side wall and a rear side wall, and the connecting cushion blocks at the left end and the right end are directly connected to the corresponding left side wall and the right side wall of the flue gas box or connected to the corresponding left side wall and the right side wall of the flue gas box through mounting plates.
3. The power generation system for comprehensive utilization of boiler gas and saturated steam according to claim 2, wherein: six mounting plates are arranged on each of the upper layer, the middle layer and the lower layer, and are respectively arranged above the connecting cushion blocks at the left end and the right end of the top of the normal-temperature water preheating device, below the connecting cushion blocks at the left end and the right end of the bottom of the normal-temperature water preheating device and below the connecting cushion blocks at the left end and the right end of the bottom of the air preheating device; the connecting cushion blocks at the left and right ends of the top of the air preheating device are respectively connected to the bottoms of the mounting plates at the left and right ends of the middle layer;
the three mounting plates at the left end are connected to the left side wall of the smoke box, and the three mounting plates at the right end are connected to the right side wall of the smoke box.
4. The power generation system for comprehensive utilization of boiler gas and saturated steam according to claim 2, wherein: the bottom of flue gas case is provided with the diapire, the diapire is connected in the bottom of left side wall, right side wall, preceding lateral wall and back lateral wall, the diapire below is provided with the support chassis.
5. The power generation system for comprehensive utilization of boiler gas and saturated steam according to claim 4, wherein: the mounting plate at the bottom of the air preheating device is supported on the bottom wall.
6. The power generation system for comprehensive utilization of boiler gas and saturated steam according to claim 1, wherein: end plates are arranged at the left end and the right end of the heat exchange module corresponding to the heat exchange tubes of the heat exchange module, and adjacent heat exchange modules are spliced and positioned through the end plates.
7. The power generation system for comprehensive utilization of boiler gas and saturated steam according to claim 6, wherein: the end plates are square, the outer end surfaces of the end plates are respectively provided with a connecting screw hole at four corners, two ends of each adjacent end plate are connected with the adjacent connecting screw holes through screws at two ends of each connecting plate, through holes with the corresponding size with the connecting screw holes are formed at two ends of each connecting plate, and the screws penetrate through the through holes at the outer sides of the connecting plates and are connected in the connecting screw holes through threads.
8. The power generation system for comprehensive utilization of boiler gas and saturated steam according to claim 1, wherein: the draught fan is connected between the chimney and the lower end of the flue gas box, a dust removing device is further arranged between the draught fan and the lower end of the flue gas box, and the dust removing device is a gravity dust removing device and comprises a dust removing cavity, a flow blocking plate arranged in a staggered mode along the air flow direction and a dust collecting cavity arranged at the bottom of the dust removing cavity.
9. The power generation system for comprehensive utilization of boiler gas and saturated steam according to claim 1, wherein: the chimney is provided with a side air inlet and a top air outlet, and is provided with an inclined plate extending upwards in an inclined mode, and the position of the inclined plate is higher than that of the side air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223409699.6U CN219222367U (en) | 2022-12-20 | 2022-12-20 | Comprehensive utilization power generation system for boiler gas and saturated steam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223409699.6U CN219222367U (en) | 2022-12-20 | 2022-12-20 | Comprehensive utilization power generation system for boiler gas and saturated steam |
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| Publication Number | Publication Date |
|---|---|
| CN219222367U true CN219222367U (en) | 2023-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223409699.6U Active CN219222367U (en) | 2022-12-20 | 2022-12-20 | Comprehensive utilization power generation system for boiler gas and saturated steam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219222367U (en) |
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- 2022-12-20 CN CN202223409699.6U patent/CN219222367U/en active Active
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