CN211345281U

CN211345281U - Novel high-temperature reheater

Info

Publication number: CN211345281U
Application number: CN201921666405.3U
Authority: CN
Inventors: 毕砚军; 周传明; 贾本康; 田绍刚
Original assignee: Guodian Bengbu Power Generation Co Ltd
Current assignee: Guodian Bengbu Power Generation Co Ltd
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2020-08-25
Anticipated expiration: 2029-10-08

Abstract

The utility model discloses a novel high-temperature reheater in the technical field of reheaters, which comprises a regenerator shell, a primary heating device and a secondary heating device, wherein the left side of the regenerator shell is provided with a communicated inlet flue, the left side and the right side of a disassembling cover have the same structure, the left side and the right side of the center of an inner cavity of the regenerator shell are both provided with flow equalizing plates, two groups of flow equalizing plates are fixedly arranged at the center between which a supporting plate is arranged, and heat accumulating plates are uniformly arranged at the top and the bottom of the supporting plate, the utility model is provided with a filtering piece, dry particles and active carbon particles can be arranged in a hollow plate body of the hollow plate body, the drying and dust removing treatment can be carried out on the entering and the discharging gas, the internal conditions of ash blocking or corrosion and the like can be avoided, the service life can be prolonged, and the disassembling covers which are, the long-term use quality is ensured.

Description

Novel high-temperature reheater

Technical Field

The utility model relates to a re-heater technical field specifically is a novel high temperature re-heater.

Background

As is known, a reheater is essentially a steam superheater that reheats low-pressure steam that has performed work to a certain temperature, and further increases the thermal efficiency of the power plant cycle and controls the steam temperature of the last stage blades of the steam turbine within a permissible range. The reheater is widely used in the field of flue gas desulfurization, and the use of the reheater on the market at present has certain use defects: the flue gas can not be well treated, so that the conditions such as ash blockage and the like easily occur inside the flue gas, the service life of the reheater is shortened, the energy loss is large during the use, and therefore the novel high-temperature reheater is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel high temperature reheater to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a novel high-temperature reheater comprises a regenerator shell, a primary heating device and a secondary heating device, wherein a communicated inlet flue is arranged on the left side of the regenerator shell, a communicated outlet flue is arranged on the right side of the regenerator shell, two groups of filtering pieces with the same structure are arranged on the left side and the right side of the inner cavity of the regenerator shell, openings are formed in the left side and the right side of the top of the regenerator shell, disassembly covers matched with the filtering pieces are symmetrically hinged to the inner walls of the openings on the left side and the right side, the disassembly covers on the left side and the right side are of the same structure, the primary heating device and the secondary heating device are respectively arranged on the left side and the right side of the inner cavity of the regenerator shell, the primary heating device and the secondary heating device are positioned on the inner sides of the filtering pieces on the left side and the right side, flow equalizing plates, two sets of central authorities are fixed between the flow equalizing plate and are provided with the backup pad, and backup pad top and bottom evenly are provided with the heat accumulation piece, evenly seted up the flow equalizing hole on the flow equalizing plate, evenly seted up the through-hole on the heat accumulation piece.

Further, filter the piece including fixing the U-shaped base at regenerator casing bottom inner wall, U-shaped base inner chamber activity is provided with the locating plate, the locating plate bottom evenly is provided with the spring, and spring bottom and U-shaped base bottom inner wall connection, locating plate top joint has the hollow plate body, be provided with the packing granule in the hollow plate body, hollow plate body top is provided with the lid, and the laminating of lid top and dismantlement bottom of the cover portion, the through-hole has evenly been seted up on the left and right sides of the hollow plate body.

Further, dismantle the lid including articulating the flip at the opening inner wall, flip is close to one side at regenerator casing center and has seted up the recess, and the recess tank bottom is provided with stress spring, the stress spring other end is connected with the sliding block, the one end that stress spring was kept away from to the sliding block is provided with the fixture block, the draw-in groove that matches with the fixture block is seted up to one side inner wall that the opening that regenerator casing top set up is close to regenerator casing center, the sliding block top is provided with dials the piece, and dials the piece top and run through the flip top, the movable joint that matches with dialling the piece is transversely seted up at the flip top, it has the operating handle to dial the welding of piece top.

Furthermore, the front side and the rear side of the bottom of the positioning plate are respectively provided with a guide pulley through an L-shaped frame, and the inner walls of the front side and the rear side of the U-shaped base are respectively vertically provided with a guide sliding groove matched with the guide pulleys.

Furthermore, all be provided with the sealing strip around the flip outer wall, and the opening inner wall that regenerator casing top set up is provided with the sealed recess that matches with the sealing strip.

Furthermore, the heat storage plate is wave-shaped, and the heat storage plate is a zeolite heat storage plate.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses be provided with and filter the piece, can set up dry granule and active carbon particle in its hollow plate body, carry out drying and dust removal processing to getting into and the combustion gas, avoid the inside circumstances such as stifled ash or corruption that appears, service life is prolonged, the dismantlement lid that is provided with simultaneously cooperatees, open the back, the hollow plate body is stretched out in the spring top, the convenience carries out quick clearance and change to packing granule and hollow plate body, guarantee long-term service life, still be provided with heat accumulation piece and flow equalizer simultaneously, the heat accumulation piece can play the absorption heat when one-level heating device and second grade heating device heat, carry out the auxiliary heating to gas when gas flow, avoid the heat to run off fast, play fine reduction use energy resource consumption and reduce the effect of one-level heating device and second grade heating device heating load.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the filter element of the present invention;

fig. 3 is a schematic view of the structure of the detachable cover of the present invention.

In the figure: 1. a regenerator housing; 2. an inlet flue; 3. an outlet flue; 4. a primary heating device; 5. a secondary heating device; 6. a filter member; 61. a U-shaped base; 62. positioning a plate; 63. a spring; 64. a hollow plate body; 65. a cover body; 7. disassembling the cover; 71. a cover is turned; 72. a slider; 73. a stress spring; 74. a clamping block; 75. a shifting block; 8. a flow equalizing plate; 9. and a heat storage sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a new type of high temperature reheater, please refer to fig. 1, comprising a regenerator housing 1, a primary heating device 4 and a secondary heating device 5, wherein the primary heating device 4 and the secondary heating device 5 are prior art, and have wide application in the field, and those skilled in the art can flexibly select a reheater, for example, the reheater proposed in patent No. CN201721425666.7, which has been disclosed: the reheater comprises a primary heating device and a secondary heating device, the secondary heating device is located at the downstream of the primary heating device, the primary heating device comprises an air inlet, an air outlet, a plurality of low-temperature heat exchange tubes and a first connecting tube, the low-temperature heat exchange tubes are arranged at intervals along the length direction of the reheater, one end of each low-temperature heat exchange tube is connected with one first connecting tube, the other end of each low-temperature heat exchange tube is connected with the other first connecting tube, the secondary heating device comprises a plurality of high-temperature heat exchange tubes and a plurality of second connecting tubes, the second connecting tubes are located at the upper end and the lower end (on the same side) of each high-temperature heat exchange tube, heat conducting rods are arranged at the centers of the high-temperature heat exchange tubes along the; the first-stage heating device is connected with the second-stage heating device through a circulating pipe;

referring to fig. 1, a communicated inlet flue 2 is arranged on the left side of a regenerator housing 1, a communicated outlet flue 3 is arranged on the right side of the regenerator housing 1, and when in use, clean flue gas enters from the inlet flue 2 and is subsequently discharged into a chimney from the outlet flue 3;

referring to fig. 1, two groups of filter elements 6 with the same structure are arranged on the left side and the right side of the inner cavity of the regenerator shell 1 and used for treating the entering purified flue gas, through openings are formed in the left side and the right side of the top of the regenerator shell 1, disassembly covers 7 matched with the filter elements 6 are symmetrically hinged to the inner walls of the through openings on the left side and the right side, the disassembly covers 7 on the left side and the right side are the same in structure, and the disassembly covers 7 are convenient to disassemble the filter elements 6;

referring to fig. 1, a first-stage heating device 4 and a second-stage heating device 5 are respectively arranged on the left and right sides of the inner cavity of a regenerator housing 1, the first-stage heating device 4 and the second-stage heating device 5 are positioned inside a left and right filtering member 6, the left and right sides of the center of the inner cavity of the regenerator housing 1 are respectively provided with a flow equalizing plate 8, the flow equalizing plates 8 ensure the uniformity of the circulation of clean flue gas, two groups of flow equalizing plates 8 are arranged between the first-stage heating device 4 and the second-stage heating device 5, a support plate is fixedly arranged in the center between the two groups of flow equalizing plates 8, heat accumulating plates 9 are uniformly arranged on the top and the bottom of the support plate, the heat accumulating plates 9 can recover heat generated by heating the first-stage heating device 4 and the second-stage heating device 5, thereby preventing the heat from being rapidly dissipated, and can play a role of, flow equalizing holes are uniformly formed in the flow equalizing plate 8, and through holes are uniformly formed in the heat storage plates 9, so that clean flue gas can flow conveniently.

As shown in fig. 2: the filter element 6 comprises a U-shaped base 61 fixed on the inner wall of the bottom of the regenerator shell 1, and can adopt a fixing mode of screws or bolts, the mounting structures are widely applied in the field, the mounting structures can be flexibly selected by technicians in the field, details are not described, a positioning plate 62 is movably arranged in the inner cavity of the U-shaped base 61, the positioning plate 62 is in clearance fit with the U-shaped base 61, springs 63 are uniformly arranged at the bottom of the positioning plate 62, after the detachable cover 7 is opened, the springs 63 drive the positioning plate 62 to enable the hollow plate 64 to extend out from the through opening, the bottom end of the springs 63 is connected with the inner wall of the bottom of the U-shaped base 61, a hollow plate body 64 is clamped at the top of the positioning plate 62, a positioning clamping block is arranged at the top of the positioning plate 62, a positioning clamping groove matched with the positioning clamping block is arranged at, conveniently change inside packing granule, can adopt the rotatable installation of opening and shutting of modes such as hinge on hollow plate body 64, or also can adopt the screw, structure demountable installation such as buckle is on hollow plate body 64, these mounting structure use extensively in this field, the technical staff in the field can select for use in a flexible way, do not do the detailing in addition here, and lid 65 top and the laminating of dismantling lid 7 bottom, the through-hole has evenly been seted up to the side about hollow plate body 64, in order to avoid packing the granule to stretch out from the through-hole, the through-hole aperture is less than the particle diameter of packing granule, the packing granule in the hollow plate body 64 in a set of filtration piece 6 that is close to flow equalizing plate 8 simultaneously is the drier granule, it is the active carbon granule to keep away from the packing granule in the hollow.

As shown in fig. 3: the detachable cover 7 comprises a flip cover 71 hinged on the inner wall of the through opening, one side of the flip cover 71 close to the center of the regenerator housing 1 is provided with a groove, the bottom of the groove is provided with a stress spring 73, the stress spring 73 enables a clamping block 74 to be tightly clamped into the clamping groove, the other end of the stress spring 73 is connected with a sliding block 72, the sliding block 72 is arranged in the groove in a matched and sliding manner by adopting the sliding block at the bottom and the transverse sliding groove at the inner wall at the bottom of the groove, one end of the sliding block 72 far away from the stress spring 73 is provided with the clamping block 74, one side of the through opening arranged at the top of the regenerator housing 1 close to the center of the regenerator housing 1 is provided with a clamping groove matched with the clamping block 74, the fixity of the flip cover 71 is improved by the matching of the clamping block 74 and the clamping groove, the top of the sliding block 72 is provided with, the sliding block 72 can be controlled to move by shifting the operating handle to drive the shifting block 75;

as shown in fig. 2: the front side and the rear side of the bottom of the positioning plate 62 are both provided with guide pulleys through an L-shaped frame, the inner walls of the front side and the rear side of the U-shaped base 61 are both vertically provided with guide chutes matched with the guide pulleys, and the positioning plate 62 can conveniently and stably enter the U-shaped base 61 by adopting the matching of the guide chutes and the guide pulleys;

as shown in fig. 3: sealing strips are arranged on the periphery of the outer wall of the flip 71, the sealing strips can be polyethylene sealing strips, the wear resistance and high temperature resistance are high, a sealing groove matched with the sealing strips is formed in the inner wall of an opening formed in the top of the regenerator shell 1, and the sealing performance of the connection part of the flip 71 and the opening when the flip is closed is improved by matching the sealing strips and the sealing groove;

as shown in fig. 1: the heat accumulation pieces 9 are wavy, contact uniformity of the heat accumulation pieces with gas is improved, the gas is conveniently heated uniformly, the heat accumulation pieces 9 are zeolite heat accumulation pieces, and the heat accumulation pieces 9 are made of zeolite materials.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A novel high-temperature reheater comprises a regenerator shell (1), a primary heating device (4) and a secondary heating device (5), and is characterized in that: regenerator casing (1) left side is provided with import flue (2) that is linked together, regenerator casing (1) right side is provided with export flue (3) that are linked together, regenerator casing (1) inner chamber left and right sides all is provided with two sets of filtration piece (6) that the structure is the same, and regenerator casing (1) top left and right sides all has seted up the opening, and control the side opening inner wall symmetry hinge have with filter piece (6) complex dismantlement lid (7), control the side dismantle lid (7) the structure is the same, one-level heating device (4) and second grade heating device (5) set up respectively in regenerator casing (1) inner chamber left and right sides, and one-level heating device (4) and second grade heating device (5) are located about side filtration piece (6) inboard, regenerator casing (1) inner chamber central left and right sides all is provided with flow equalizing plate (8), and is two sets up flow equalizing plate (8) and set up in one-level heating device (4) and second grade heating device (5) export Between, it is two sets of central authorities are fixed between flow equalization board (8) are provided with the backup pad, and backup pad top and bottom evenly are provided with heat accumulation piece (9), evenly seted up the flow equalization hole on flow equalization board (8), evenly seted up the through-hole on heat accumulation piece (9).

2. A novel high temperature reheater as claimed in claim 1 wherein: filter piece (6) including fixing U-shaped base (61) at regenerator casing (1) bottom inner wall, U-shaped base (61) inner chamber activity is provided with locating plate (62), locating plate (62) bottom evenly is provided with spring (63), and spring (63) bottom and U-shaped base (61) bottom interior wall connection, locating plate (62) top joint has hollow plate body (64), be provided with the packing granule in hollow plate body (64), hollow plate body (64) top is provided with lid (65), and lid (65) top and dismantlement lid (7) bottom laminating, the through-hole has evenly been seted up to the side about hollow plate body (64).

3. A novel high temperature reheater as claimed in claim 1 wherein: dismantle lid (7) including hinge flip (71) at the opening inner wall, one side that flip (71) are close to regenerator casing (1) center is seted up flutedly, and the recess tank bottom is provided with stress spring (73), stress spring (73) other end is connected with sliding block (72), the one end that stress spring (73) were kept away from to sliding block (72) is provided with fixture block (74), the draw-in groove that matches with fixture block (74) is seted up to one side inner wall that regenerator casing (1) center is close to the opening that regenerator casing (1) top set up, sliding block (72) top is provided with stirring piece (75), and stirs piece (75) top and runs through flip (71) top, flip (71) top is transversely seted up with stirring piece (75) the movable mouthful that matches, stirring piece (75) top welding has the operation handle.

4. A novel high temperature reheater as claimed in claim 2 wherein: the front side and the rear side of the bottom of the positioning plate (62) are respectively provided with a guide pulley through an L-shaped frame, and the inner walls of the front side and the rear side of the U-shaped base (61) are respectively and vertically provided with a guide sliding groove matched with the guide pulleys.

5. A novel high temperature reheater as claimed in claim 3 wherein: all be provided with the sealing strip around flip (71) outer wall, and the opening inner wall that regenerator casing (1) top set up is provided with the sealed recess that matches with the sealing strip.

6. A novel high temperature reheater as claimed in claim 1 wherein: the heat storage sheets (9) are wavy, and the heat storage sheets (9) are zeolite heat storage sheets.