CN216572304U - Multiple recovery unit of flue gas - Google Patents
Multiple recovery unit of flue gas Download PDFInfo
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- CN216572304U CN216572304U CN202123196065.2U CN202123196065U CN216572304U CN 216572304 U CN216572304 U CN 216572304U CN 202123196065 U CN202123196065 U CN 202123196065U CN 216572304 U CN216572304 U CN 216572304U
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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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
The utility model discloses a flue gas multiple recovery device, which comprises a flue gas source, wherein the flue gas source is sequentially connected with a dust remover, a fan, a first flue gas condenser, a desulfurizing tower, a second flue gas condenser, a wet electric dust remover and a chimney through a pipeline; the water inlets of the first flue gas condenser and the second flue gas condenser are connected with a demineralized water pipe, the water outlets of the first flue gas condenser and the second flue gas condenser are connected with a mixing tank through pipelines, and the mixing tank is connected with a boiler through a pipeline; the desulfurizing tower comprises a tower body, wherein a smoke inlet is formed in the lower part of one end of the tower body, a smoke outlet is formed in the upper part of the other end of the tower body, and a lower vertical metal partition plate and an upper vertical metal partition plate are respectively arranged in the tower body. The utility model has the characteristics of effectively improving the recycling of the heat of the flue gas and effectively improving the desulfurization effect.
Description
Technical Field
The utility model relates to a flue gas treatment system of a thermal power plant, in particular to a multi-recovery device for flue gas.
Background
The thermal power plant is a thermal power plant which utilizes the extraction steam or the exhaust steam of a steam turbine to supply heat for users while generating electricity; the main working principle is that hot water generated by a thermal power plant is used for heating again. Coal, garbage or natural gas are used as comburents in the thermal power plant, a large amount of smoke can be generated after the comburents are combusted in a boiler, the smoke needs to be sequentially subjected to desulfurization and dust removal treatment, and finally the smoke is discharged into the atmosphere through a chimney. In the process, the heat in the flue gas is not recycled, so that the heat is directly wasted, and white smoke plume can be generated after the circulating water in the cooling tower is precooled, so that the pollution is further caused. Meanwhile, the existing desulfurizing tower adopts a wet-type spraying desulfurizing mode, and the spraying operation is carried out through a plurality of groups of spraying nozzles arranged in the desulfurizing tower, but the distribution positions of the spraying nozzles are fixed, dead angles exist during spraying, so that the spraying is uneven, and the desulfurizing effect is not ideal. Therefore, the prior art has the problems of low recycling rate of flue gas heat and non-ideal desulfurization effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a multiple flue gas recovery device. The utility model has the characteristics of effectively improving the recycling of the heat of the flue gas and effectively improving the desulfurization effect.
The technical scheme of the utility model is as follows: the flue gas multiple recovery device comprises a flue gas source, wherein the flue gas source is sequentially connected with a dust remover, a fan, a first flue gas condenser, a desulfurizing tower, a second flue gas condenser, a wet electric dust remover and a chimney through a pipeline; the water inlets of the first flue gas condenser and the second flue gas condenser are connected with a demineralized water pipe, the water outlets of the first flue gas condenser and the second flue gas condenser are connected with a mixing tank through pipelines, and the mixing tank is connected with a boiler through a pipeline; the desulfurizing tower comprises a tower body, wherein a smoke inlet is formed in the lower portion of one end of the tower body, a smoke outlet is formed in the upper portion of the other end of the tower body, and a lower vertical metal partition plate and an upper vertical metal partition plate are respectively arranged in the tower body.
In the multiple flue gas recovery device, a primary spraying cavity is arranged between the lower vertical metal partition plate and the tower body, a secondary spraying cavity is arranged between the lower vertical metal partition plate and the upper vertical metal partition plate, and a tail end spraying cavity is arranged between the upper vertical metal partition plate and the tower body; a group of horizontal spraying pipes and a group of rotary spraying pipes are sequentially arranged in the primary spraying cavity from bottom to top; the secondary sprays the intracavity and is equipped with the activity crossing and sprays the group, and the activity crossing sprays the group below and is equipped with a plurality of concentric circles and distributes and be the annular duct of level to, and annular duct upper end and inside wall all are equipped with first mouth that sprays.
Among the multiple recovery unit of aforementioned flue gas, the terminal intracavity that sprays is equipped with a plurality of annular shower that distribute about being and the diameter from up increasing in proper order down, and the annular shower bottom surface is equipped with the toper and sprays the hole, all is equipped with the jet orifice on the inside and outside wall of annular shower.
In the multi-recovery device for flue gas, the lower part of the horizontal spray pipe is provided with a second inclined spray port.
In the multiple flue gas recovery device, the rotary spray pipe comprises a middle rotary pipe, outer rotary pipes which are distributed annularly are further arranged on the outer side of the middle rotary pipe, a driving rotary shaft is arranged at the upper end of the middle rotary pipe, a driving gear is sleeved on the driving rotary shaft, and a transmission gear is meshed outside the driving gear; the upper end of the outer rotating pipe is provided with a driven gear which is meshed with the transmission gear; the upper end of the driving rotating shaft is provided with a driving motor; and third spray ports which are spirally distributed are arranged on the outer surfaces of the middle rotating pipe and the outer rotating pipe.
In the multiple flue gas recovery device, the movable cross-type spraying group comprises a group of X-shaped infusion tube groups distributed side by side, and connecting rods are respectively arranged on two sides of the upper end and the lower end of each X-shaped infusion tube group; the side wall of the tower body is provided with an arc-shaped limiting groove matched with the connecting rod, the arc-shaped limiting groove at the upper part is provided with a connecting rod group matched with the connecting rod, and a telescopic driving mechanism is arranged above the connecting rod group; the X-shaped infusion tube group comprises two infusion tubes which are distributed in an X shape and are hinged, and a fourth liquid spraying opening is formed in the surface of each infusion tube.
Compared with the prior art, the wet type electric dust remover comprises a dust remover, a first flue gas condenser, a desulfurizing tower, a second flue gas condenser and a wet type electric dust remover, dust removal, desulfurization and multiple heat exchange treatment of flue gas are completed, water inlets of the first flue gas condenser and the second flue gas condenser are respectively connected with a deoxidizing water pipe, water outlets of the first flue gas condenser and the second flue gas condenser are connected with a mixing tank, and the mixing tank is connected with a boiler, so that heat in the flue gas can be effectively absorbed, the heat in the flue gas is used for heating demineralized water, and the recovery utilization rate of flue gas waste heat is improved. Meanwhile, the desulfurizing tower comprises a tower body, a primary spraying cavity, a secondary spraying cavity and a tail end spraying cavity, wherein the primary spraying cavity is internally provided with a horizontal spraying pipe and a rotary spraying pipe, the secondary spraying cavity is internally provided with a movable cross type spraying group and a ring pipe, and the tail end spraying cavity is internally provided with a ring-shaped spraying pipe with the diameter gradually increased from bottom to top, so that the comprehensive desulfurizing effect can be performed on the flue gas, and the spraying desulfurizing effect of the flue gas is improved. In conclusion, the utility model has the characteristics of effectively improving the recycling of the heat of the flue gas and effectively improving the desulfurization effect.
In addition, the rotary spraying pipe is arranged, and the spraying ports which are distributed spirally are arranged on the spraying pipe, so that multidirectional spraying treatment can be realized, spraying dead corners can be eliminated, and the flow speed of flue gas can be increased; the movable cross type spraying groups are arranged, so that the spraying pipes regularly perform cross movement, the spraying area can be increased, the effect is improved, the flue gas disturbance can be increased, the flue gas can be sprayed in multiple directions, and the sulfur removal effect is improved. The utility model also forms omnibearing spraying by arranging the annular spraying pipes with the diameters increasing from bottom to top and arranging the spraying nozzles on the lower surfaces and the left and right side walls of the annular spraying pipes, thereby greatly improving the spraying effect.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a structural view of a desulfurizing tower;
FIG. 3 is an arrangement view of the ring-shaped pipes;
fig. 4 is a structural view of an active cross spray group.
The labels in the figures are: 1-dust remover, 2-fan, 3-first flue gas condenser, 4-desulfurizing tower, 5-second flue gas condenser, 6-wet electric dust remover, 7-chimney, 401-tower body, 402-desulfurizing smoke inlet, 403-desulfurizing smoke outlet, 404-lower vertical metal partition plate, 405-upper vertical metal partition plate, 406-primary spray cavity, 407-secondary spray cavity, 408-tail spray cavity, 409-horizontal spray pipe, 410-rotary spray pipe, 411-movable cross spray group, 412-annular pipe, 413-annular spray pipe, 4101-middle rotary pipe, 4102-outer rotary pipe, 4103-driving rotary shaft, 4-driving gear, 4105-transmission gear, 4106-driven gear, 4107-driving motor, 4111-X-shaped infusion tube group, 4112-connecting rod, 4113-arc-shaped limiting groove, 4114-connecting rod group, 4115-telescopic driving mechanism, and 4116-infusion tube.
Detailed Description
The utility model is further illustrated by the following figures and examples, which are not to be construed as limiting the utility model.
Examples are given. The flue gas multiple recovery device is shown in figures 1 to 4 and comprises a flue gas source, wherein the flue gas source is sequentially connected with a dust remover 1, a fan 2, a first flue gas condenser 3, a desulfurizing tower 4, a second flue gas condenser 5, a wet electric dust remover 6 and a chimney 7 through pipelines; the water inlets of the first flue gas condenser 3 and the second flue gas condenser 5 are connected with a demineralized water pipe, the water outlets of the first flue gas condenser 3 and the second flue gas condenser 5 are connected with a mixing tank through a pipeline, and the mixing tank is connected with a boiler through a pipeline; the desulfurizing tower 4 comprises a tower body 401, a smoke inlet 402 is arranged at the lower part of one end of the tower body 401, a smoke outlet 403 is arranged at the upper part of the other end of the tower body 401, and a lower vertical metal partition plate 404 and an upper vertical metal partition plate 405 are respectively arranged in the tower body 401.
A primary spraying cavity 406 is arranged between the lower vertical metal separation plate 404 and the tower body 401, a secondary spraying cavity 407 is arranged between the lower vertical metal separation plate 404 and the upper vertical metal separation plate 405, and a tail end spraying cavity 408 is arranged between the upper vertical metal separation plate 405 and the tower body 401; a group of horizontal spray pipes 409 and a group of rotary spray pipes 410 are sequentially arranged in the primary spray cavity 406 from bottom to top; the secondary sprays the intracavity 407 and is equipped with activity crossing spray group 411, and activity crossing spray group 411 below is equipped with a plurality of concentric circles and distributes and be horizontal annular tube 412, and annular tube 412 upper end and inside wall all are equipped with first mouth that sprays.
The end sprays the intracavity and is equipped with a plurality of annular shower 413 that distribute about being and the diameter from up increasing in proper order down in 408, and annular shower 413 bottom surface is equipped with the toper and sprays the hole, all is equipped with the jet orifice on the interior lateral wall of annular shower 413.
The lower part of the horizontal spray pipe 409 is provided with a second inclined spray opening.
The rotary spray pipe 410 comprises a middle rotary pipe 4101, the outer side of the middle rotary pipe 4101 is also provided with an outer rotary pipe 4102 which is distributed annularly, the upper end of the middle rotary pipe 4101 is provided with a driving rotary shaft 4103, the driving rotary shaft 4103 is sleeved with a driving gear 4104, and the driving gear 4104 is externally engaged with a transmission gear 4105; a driven gear 4106 is arranged at the upper end of the outer rotary pipe 4102, and the driven gear 4106 is meshed with the transmission gear 4105; a driving motor 4107 is arranged at the upper end of the driving rotating shaft 4103; and the outer surfaces of the middle rotary pipe 4101 and the outer rotary pipe 4102 are provided with third spray ports which are spirally distributed.
In the above flue gas multiple recovery device, the movable cross-type spraying group 411 includes a group of X-shaped infusion tube groups 4111 distributed side by side, and two sides of the upper and lower ends of the X-shaped infusion tube group 4111 are respectively provided with a connecting rod 4112; an arc-shaped limiting groove 4113 matched with the connecting rod 4112 is formed in the side wall of the tower body 401, a connecting rod group 4114 matched with the connecting rod 4112 is arranged on the arc-shaped limiting groove 4113 in the upper portion, and a telescopic driving mechanism 4115 is arranged above the connecting rod group 4114; the X-shaped infusion tube group 4111 comprises two infusion tubes 4116 which are arranged in an X-shape and are hinged, and a fourth liquid spraying port is arranged on the surface of the infusion tube 4116.
The inner side of the transmission gear is provided with an internal tooth-shaped structure, and the outer side of the transmission gear is provided with an external tooth-shaped structure.
The telescopic driving mechanism comprises a driving cylinder, and the output end of the driving cylinder is provided with a retracting pull rod matched with the connecting rod group.
The working process of the utility model is as follows: and the flue gas source enters the chimney to be discharged after sequentially passing through the dust removal of the dust remover, the first heat exchange of the first flue gas condenser, the desulfurization treatment of the desulfurizing tower, the second heat exchange of the second flue gas condenser and the dust removal of the wet electric dust remover under the action of the fan. In the process, water in the first flue gas condenser and the second flue gas condenser comes from the deaerating water pipe, absorbs heat and then is conveyed to the mixing tank and then conveyed to the boiler.
And (3) a desulfurization process of the desulfurization tower: the flue gas gets into from desulfurization inlet flue, in proper order through preliminary spraying chamber, secondary spray chamber and the terminal spraying intracavity spray the effect of spraying, accomplishes the desulfurization of flue gas and sprays the processing.
The working process of the rotary spray pipe comprises the following steps: the driving motor works to drive the driving rotating shaft to rotate, the rotation of the driving rotating shaft can drive the driving gear and the middle rotating pipe to rotate, the driving gear rotates to drive the transmission gear, the transmission gear rotates to drive the driven gear and the outer rotating pipe to rotate, and the middle rotating pipe and the outer rotating pipe rotate to realize the rotary spraying.
The working process of the movable cross type spraying group is as follows: the telescopic driving mechanism (namely, the telescopic driving cylinder) works to drive the connecting rod to move up and down, and the up-and-down movement of the connecting rod can drive the connecting rod group to correspondingly move (when the connecting rod group moves up, the connecting rod group contracts upwards and inwards, and when the connecting rod group moves downwards, the connecting rod group expands downwards and outwards), so that the upper end and the lower end of the X-shaped infusion tube group are driven to move along the arc-shaped limiting grooves.
Claims (6)
1. Multiple recovery unit of flue gas, its characterized in that: the device comprises a flue gas source, wherein the flue gas source is sequentially connected with a dust remover (1), a fan (2), a first flue gas condenser (3), a desulfurizing tower (4), a second flue gas condenser (5), a wet electric dust remover (6) and a chimney (7) through pipelines; the water inlets of the first flue gas condenser (3) and the second flue gas condenser (5) are connected with a demineralized water pipe, the water outlets of the first flue gas condenser (3) and the second flue gas condenser (5) are connected with a mixing tank through pipelines, and the mixing tank is connected with a boiler through a pipeline; desulfurizing tower (4) are equipped with into mouth (402) including tower body (401) the lower part of tower body (401) one end, and the upper portion of tower body (401) the other end is equipped with outlet flue (403), is equipped with vertical metal separation board (404) of lower part and vertical metal separation board (405) in upper portion in tower body (401) respectively.
2. The multiple recovery unit of flue gas of claim 1, characterized in that: a primary spraying cavity (406) is arranged between the lower vertical metal separation plate (404) and the tower body (401), a secondary spraying cavity (407) is arranged between the lower vertical metal separation plate (404) and the upper vertical metal separation plate (405), and a tail end spraying cavity (408) is arranged between the upper vertical metal separation plate (405) and the tower body (401); a group of horizontal spray pipes (409) and a group of rotary spray pipes (410) are sequentially arranged in the primary spray cavity (406) from bottom to top; the secondary sprays the intracavity (407) and is equipped with movable cross formula and sprays group (411), and movable cross formula sprays group (411) below and is equipped with a plurality of concentric circles and distributes and be horizontal annular tube (412), and annular tube (412) upper end and inside wall all are equipped with first mouth that sprays.
3. The multiple recovery unit of flue gas of claim 2, characterized in that: a plurality of annular spraying pipes (413) which are distributed up and down and have diameters which are sequentially increased from bottom to top are arranged in the tail end spraying cavity (408), conical spraying holes are formed in the bottom surfaces of the annular spraying pipes (413), and spraying holes are formed in the inner side wall and the outer side wall of each annular spraying pipe (413).
4. The multiple recovery unit of flue gas of claim 2, characterized in that: and a second inclined spraying port is arranged at the lower part of the horizontal spraying pipe (409).
5. The multiple recovery unit of flue gas of claim 2, characterized in that: the rotary type spray pipe (410) comprises a middle rotary pipe (4101), outer rotary pipes (4102) which are distributed annularly are further arranged on the outer side of the middle rotary pipe (4101), a driving rotary shaft (4103) is arranged at the upper end of the middle rotary pipe (4101), a driving gear (4104) is sleeved on the driving rotary shaft (4103), and a transmission gear (4105) is meshed outside the driving gear (4104); the upper end of the outer side rotating pipe (4102) is provided with a driven gear (4106), and the driven gear (4106) is meshed with the transmission gear (4105); the upper end of the active rotating shaft (4103) is provided with a driving motor (4107); and third spraying ports which are spirally distributed are arranged on the outer surfaces of the middle rotating pipe (4101) and the outer rotating pipe (4102).
6. The multiple recovery unit of flue gas of claim 2, characterized in that: the movable cross type spraying group (411) comprises a group of X-shaped infusion tube groups (4111) which are distributed side by side, and connecting rods (4112) are respectively arranged on two sides of the upper end and the lower end of each X-shaped infusion tube group (4111); an arc-shaped limiting groove (4113) matched with the connecting rod (4112) is formed in the side wall of the tower body (401), a connecting rod group (4114) matched with the connecting rod (4112) is arranged on the arc-shaped limiting groove (4113) in the upper portion, and a telescopic driving mechanism (4115) is arranged above the connecting rod group (4114); the X-shaped infusion tube group (4111) comprises two X-shaped infusion tubes (4116) which are hinged, and a fourth liquid spraying port is arranged on the surface of the infusion tube (4116).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123196065.2U CN216572304U (en) | 2021-12-17 | 2021-12-17 | Multiple recovery unit of flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123196065.2U CN216572304U (en) | 2021-12-17 | 2021-12-17 | Multiple recovery unit of flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216572304U true CN216572304U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123196065.2U Active CN216572304U (en) | 2021-12-17 | 2021-12-17 | Multiple recovery unit of flue gas |
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|---|---|
| CN (1) | CN216572304U (en) |
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2021
- 2021-12-17 CN CN202123196065.2U patent/CN216572304U/en active Active
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