CN210345513U - Cooling heat exchange device for industrial flue gas - Google Patents
Cooling heat exchange device for industrial flue gas Download PDFInfo
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- CN210345513U CN210345513U CN201920780150.7U CN201920780150U CN210345513U CN 210345513 U CN210345513 U CN 210345513U CN 201920780150 U CN201920780150 U CN 201920780150U CN 210345513 U CN210345513 U CN 210345513U
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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 cooling and heat exchanging device for industrial flue gas, wherein a smoke box is arranged on a frame, at least two groups of cooling module groups are sequentially arranged in the inner cavity of the smoke box from top to bottom, each group of cooling module groups consists of a plurality of cooling modules which are arranged side by side, and the number of the cooling modules in each group of cooling module groups is the same; the inlet of the water inlet header of each cooling module in the cooling module group at the lowest layer of the inner cavity of the smoke box is communicated with the water outlet of the water inlet header through a corresponding lower water pipe with a water inlet stop valve; the outlet of the water outlet header of each cooling module in the cooling module group on the uppermost layer of the inner cavity of the smoke box is communicated with the water inlet of the water outlet header through an upper water delivery pipe with a corresponding water outlet stop valve; the cooling modules in each row are connected in series through S-shaped water conveying pipes; the water inlet main collecting tank is provided with a main water discharge pipe with a valve, and the water outlet main collecting tank is provided with a main gas discharge pipe with a valve. The device has simple structure and good cooling effect.
Description
Technical Field
The utility model relates to an industrial flue gas is energy-conserving to be carried and is imitated the equipment, especially relates to a cooling heat transfer device of industrial flue gas.
Background
The heat loss of the exhaust smoke is the largest one of various heat losses of the coal-fired boiler, and accounts for more than 75% of the total heat loss of the coal-fired boiler. The main factor causing the heat loss of the exhaust gas is the exhaust gas temperature, and in general, every 10 ℃ increase of the exhaust gas temperature is as follows: the heat loss of the exhaust gas is increased by 0.6-1%, and the heat consumption is increased by 1.2-2.4%. In addition, the too high utilization ratio that not only can seriously reduce the energy of exhaust gas temperature still can influence follow-up desulfurization flue gas processing system that handles to the flue gas greatly: the dust removal efficiency of the dust remover is reduced, and the water consumption of the desulfurizing tower is increased.
At present, the temperature of exhaust gas is reduced by arranging a cooling device at a flue gas outlet of a coal-fired boiler, good conditions are created for further processing of the flue gas, and the recovery of the heat energy of the exhaust gas is realized. The common cooling device on the market at present has a complex structure and a very unsatisfactory cooling effect.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that needs to solve is: the cooling device for the industrial flue gas is simple in structure and good in cooling effect.
In order to solve the above problem, the utility model adopts the following technical scheme: the cooling heat exchange device for the industrial flue gas comprises: the cooling system comprises a rack and a smoke box arranged on the rack, wherein a bell mouth at the top of the smoke box is a smoke inlet, a bell mouth at the bottom of the smoke box is a smoke outlet, an integral cooling module group is arranged in an inner cavity of the smoke box and comprises at least two groups of cooling modules which are sequentially arranged from top to bottom, each group of cooling module group consists of a plurality of cooling modules which are sequentially arranged from left to right, and the number of the cooling modules in each group of cooling module group is the same; the inlet of each cooling module in the cooling module group at the lowest layer of the inner cavity of the smoke box is communicated with the water outlet of the water inlet header box through a corresponding lower water pipe, and each lower water pipe is provided with a water inlet stop valve; the outlet of each cooling module in the cooling module group on the uppermost layer of the inner cavity of the smoke box is communicated with the water inlet of the water outlet header box through a corresponding upper water conveying pipe, and each upper water conveying pipe is provided with a water outlet stop valve; the outlets of the water outlet header tanks of the cooling modules positioned in the same row are respectively communicated with the inlets of the water inlet header tanks of the cooling modules positioned above the outlets of the water outlet header tanks through corresponding S-shaped water conveying pipes; namely: after the cooling modules in the upper and lower cooling module groups are correspondingly connected in series into rows through the S-shaped water pipes, the module groups connected in series in each row are connected in parallel through the upper water pipes and the lower water pipes to form the integral cooling module group of the cooling and heat exchanging device.
The water inlet main collecting tank is provided with a main water discharge pipe with a valve, and the water outlet main collecting tank is provided with a main gas discharge pipe with a valve.
Further, in the cooling and heat exchanging device for industrial flue gas, the cooling module is a serpentine tube type cooling heat exchanger, a front baffle of each serpentine tube type cooling heat exchanger is hermetically clamped and embedded in a corresponding first through hole on the smoke box, and a tail baffle of each serpentine tube type cooling heat exchanger is hermetically clamped and embedded in a corresponding second through hole on the smoke box; the tail part of the coiled pipe type cooling heat exchanger is provided with a bent pipe protection box which is fixedly arranged on the tail baffle plate, and all heat exchange pipes extending out of the tail baffle plate and the coiled pipe joint sealing cover are covered in the bent pipe protection box.
Further, in the cooling heat exchange device for industrial flue gas, a water drain pipe with a valve is respectively arranged on the water inlet header of each cooling module in the cooling module group at the lowest layer of the inner cavity of the smoke box, and the media in each cooling module in the corresponding row can be discharged through the water drain pipe when the valve on any water drain pipe is opened; the water outlet header of each cooling module in the cooling module group on the uppermost layer of the inner cavity of the smoke box is provided with an air release pipe with a valve, and the working pressure of each cooling module in the corresponding row can be reduced by opening the valve on any air release pipe.
Further, in the cooling and heat exchanging device for industrial flue gas, a water inlet of the inlet header is communicated with a water outlet of the inlet pipe, and a filter, a flow regulating valve and a water pump are sequentially arranged on the inlet pipe from the water inlet of the inlet pipe to the water outlet of the inlet pipe.
Further, in the cooling and heat exchanging device for industrial flue gas, the upper part of the smoke box is fixedly supported on the rack through a plurality of upper supporting beams, and the lower part of the smoke box is movably supported on the rack through a plurality of lower supporting beams; all be provided with a antivibration structure between every upper support beam and smoke box and between every lower support beam and smoke box, the antivibration structure be: all the cover is equipped with the expansion joint on every upper supporting beam or lower supporting beam, the expansion joint comprises left loudspeaker form box and right loudspeaker form box, and the smooth transitional coupling of left loudspeaker form box main aspects and right loudspeaker form box main aspects constitutes integratively, left loudspeaker form box left side is sealed to paste and is leaned on the smoke box lateral surface, the fixed supporting plate that is provided with on right loudspeaker form box, the expansion joint passes through the fixed setting of supporting plate on corresponding upper supporting beam or lower supporting beam.
Further, aforesaid cooling heat transfer device of industry flue gas, wherein, the smoke box is gone into cigarette flue, first flue, second flue and the loudspeaker form by loudspeaker form from top to bottom in proper order and is gone out the cigarette flue and constitute, and first flue and second flue pass through flue expansion joint sealing connection, and the flue expansion joint comprises last loudspeaker form box and lower loudspeaker form box, and goes up the smooth transitional coupling of loudspeaker form box main aspects and lower loudspeaker form box main aspects and constitute integratively.
Further, the cooling heat exchange device of industrial flue gas, wherein, the smoke box from top to bottom comprises tubaeform smoke inlet flue, first flue, second flue and tubaeform smoke outlet flue in proper order, and first flue and second flue are through the flexible compensator sealing connection of bellows that is made by high temperature resistant, corrosion-resistant material.
Further, aforementioned cooling heat transfer device of industrial flue gas, wherein, still set up on the smoke box and carry out dust removal treatment to each cooling module in the smoke box inner chamber have ash removal device, ash removal device's structure be: a plurality of connecting through holes are formed in the smoke box above each cooling module group, the air outlet of each high-pressure air pipe penetrates through the corresponding connecting through hole in a sealing mode and then extends into the inner cavity of the smoke box, and the air inlet of each high-pressure air pipe is connected with a high-pressure air source.
Further, the cooling and heat exchanging device for the industrial flue gas comprises a sliding support seat fixedly arranged at the end of each lower support beam, a sliding groove corresponding to each sliding support seat is arranged on the rack, and the bottom of each sliding support seat is movably arranged in the corresponding sliding groove.
Further, in the cooling and heat exchanging device for industrial flue gas, the smoke box above each upper support beam is fixedly provided with an upper support seat, and each upper support seat is arranged on the corresponding upper support beam through an upper fixed support; lower supporting seats are fixedly arranged on the smoke boxes above the lower supporting beams, and each lower supporting seat is arranged on the corresponding lower supporting beam through a lower fixed support; limiting parts are fixedly arranged on the machine frames which are positioned at the end parts of the two ends of each upper supporting beam and the end parts of the two ends of each lower supporting beam; at least one access door is also arranged on the smoke box.
The utility model has the advantages that ① each cooling module in each row is established ties through the S-shaped raceway after, the delivery port of each last raceway is parallelly connected, the water inlet of each raceway is parallelly connected down, thereby make the media medium temperature in each cooling module that gets into in the same layer cooling module group unanimous, distribute evenly, realize carrying out step by step cooling to the flue gas that gets into in the smoke box inner chamber from the flue gas import, adapt to multiple operating mode, guarantee that the unit improves heat transfer efficiency under different operating modes most effectively, therefore cooling device ' S cooling effect is very good, the heat loss rate of recovery of discharging fume is high, ② cooling device when operation, through flue expansion joint, each expansion joint, and each sliding support seat and the cooperation compensation adjustment smoke box ' S of corresponding spout expend with cold and heat, smoke box high temperature resistance is good, in addition, cooling device when operation, carry out the damping to the smoke box through flue expansion joint and each expansion joint, greatly prolonged smoke box ' S life.
Drawings
Fig. 1 is a schematic structural diagram of a cooling and heat exchanging device for industrial flue gas according to the present invention.
Fig. 2 is a schematic diagram of the structure in the right-hand direction in fig. 1.
Fig. 3 is a schematic diagram of the media transportation in the cooling and heat exchanging device for industrial flue gas according to the present invention.
Fig. 4 is a partially enlarged structural view of a portion C in fig. 2.
Fig. 5 is a partially enlarged schematic view of a portion a of fig. 1.
Fig. 6 is a schematic view of the expansion joint of fig. 5.
Fig. 7 is a schematic view of the structure in the right-hand direction of fig. 6.
Fig. 8 is a partial sectional structural view of fig. 6.
Fig. 9 is a partially enlarged structural view of a portion D in fig. 2.
Fig. 10 is a partially enlarged schematic structural view of a portion B in fig. 1.
Fig. 11 is a partial structural view of any one of the heat exchange tubes located at the uppermost layer in the cooling module.
FIG. 12 is a schematic view of the structure of FIG. 11 taken along the section E-E.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and preferred embodiments.
Example one
As shown in fig. 1, the cooling and heat exchanging device for industrial flue gas according to this embodiment includes: frame 1 with set up smoke box 2 in frame 1, the top horn mouth of smoke box 2 is flue gas inlet 21, the bottom horn mouth of smoke box 2 is exhanst gas outlet 22. At least two groups of cooling module groups 3 are sequentially arranged in the inner cavity of the smoke box from top to bottom, each group of cooling module groups 3 consists of a plurality of cooling modules 31 which are sequentially and closely arranged from left to right, and the number of the cooling modules 31 in each group of cooling module groups 3 is the same.
As shown in fig. 1 and 3, the inlet 311 of each cooling module 31 in the cooling module group 3 at the lowest layer of the smoke box inner cavity is communicated with the outlet of the inlet header 51 through the corresponding lower water pipe 41, and each lower water pipe 41 is provided with a water inlet stop valve 410. In actual manufacturing production, a plurality of water outlets are formed in the inlet header 51, and the number of the water outlets on the inlet header 51 is the same as that of the lower water pipes 41. The outlet 310 of each cooling module 31 in the cooling module group 3 on the uppermost layer of the inner cavity of the smoke box is communicated with the inlet of the outlet header 52 through the corresponding upper water pipe 43, and each upper water pipe 43 is provided with a water outlet stop valve 430. In actual manufacturing production, a plurality of water inlets are formed in the water outlet header 52, and the amount of water at each water inlet on the water outlet header 52 is the same as that of the upper water conveying pipes 43. The outlet 310 of each cooling module 31 in the same row is respectively communicated with the inlet 311 of the cooling module 31 above the outlet through the corresponding S-shaped water pipe 42. At the moment, the cooling modules in each row are connected in series through a plurality of independent S-shaped water conveying pipes, the water outlets of the upper water conveying pipes are connected in parallel, and the water inlets of the lower water conveying pipes are connected in parallel to form a complete medium conveying system. The inlet header tank 51 is provided with a main discharge pipe 510 having a valve, and the outlet header tank 52 is provided with a main discharge pipe 520 having a valve. The inlet of the inlet manifold 51 is connected to the outlet of the inlet pipe 50, and the inlet pipe 50 is provided with a filter 501, a flow control valve 502 and a water pump 503 in sequence from the inlet of the inlet pipe 50 to the outlet of the inlet pipe 50.
This embodiment explains with the case that two sets of cooling module groups 3 are set gradually from top to bottom in the smoke box inner chamber:
when the cooling device operates, the cold medium enters the heat exchange tube sets of the cooling modules 31 in the cooling module set 3 at the lowest layer of the inner cavity of the smoke box through the water inlet pipe 50, the water inlet header tank 51 and the independent lower water conveying pipes 41 under the driving of the water pump 503, indirect heat exchange is carried out on the cold medium with the smoke at the position, the cold medium in the heat exchange tube sets of the cooling modules 31 at the lowest layer of the inner cavity of the smoke box is heated, the temperature of the smoke at the position is lower at the moment, and the cold medium is preheated at low temperature, so that the recovery rate of the cooling device on the heat loss of the smoke exhaust is improved. The medium after the first temperature rise continuously enters the heat exchange tube sets of the cooling modules 31 of the cooling module set 3 above the medium through the independent S-shaped water conveying tubes 42, indirect heat exchange is carried out between the medium and the flue gas at the position, the medium continuously rises the temperature, and the medium after the second temperature rise is output out of the cooling device through the independent upper water conveying tubes 43 and the water outlet header tank 52.
The flue gas enters the inner cavity of the smoke box from the flue gas inlet 21, is subjected to indirect heat energy exchange with media in the heat exchange tube sets of the cooling modules 31 in the cooling module set 3 at the uppermost layer of the inner cavity of the smoke box and then is cooled, the cooled flue gas flows downwards, is subjected to indirect heat energy exchange with cold media in the heat exchange tube sets of the cooling modules 31 in the cooling module set 3 at the lowermost layer of the inner cavity of the smoke box and then is continuously cooled, and the flue gas after secondary cooling is discharged out of the smoke box 2 from the flue gas outlet 22.
As shown in fig. 2 and 4, the cooling module 31 in this embodiment is a serpentine cooling heat exchanger, a heat exchange tube set in the serpentine cooling heat exchanger is a serpentine heat exchange tube set, and the serpentine heat exchange tube set is formed by connecting a plurality of heat exchange tubes through a plurality of serpentine elbow joints 312. The front baffle 315 of each serpentine cooling heat exchanger is sealed and embedded in the corresponding first through hole on the smoke box 2, and the tail baffle 316 of each serpentine cooling heat exchanger is sealed and embedded in the corresponding second through hole on the smoke box 2. The tail part of the serpentine tube type cooling heat exchanger is provided with a bent tube protection box 6, the bent tube protection box 6 is fixedly arranged on a tail baffle 316 of the serpentine tube type cooling heat exchanger, and the serpentine elbow joints 312 extending out of the tail baffle 316 of the serpentine tube type cooling heat exchanger are hermetically covered in the bent tube protection box 6. At this time, a closed cavity is formed between the tail baffle 316 and the inner cavity of the elbow protection box. The bent pipe protection box 6 can protect the heat exchange pipe 9 and the snake-shaped bent pipe joint 312 extending out of the tail baffle 316 and prevent the heat exchange pipe 9 and the snake-shaped bent pipe joint 312 extending out of the tail baffle 316 from rusting and corroding due to exposure in the external environment; the process can also be reduced: the heat exchange tubes in the serpentine heat exchange tube group and the through holes for the heat exchange tubes 9 to pass through do not need to be sealed, after the heat exchange tubes 9 in the serpentine tube type cooling heat exchanger commonly found in the market pass through the through holes in the tail baffle 316, the joints of the heat exchange tubes 9 and the corresponding through holes are in sealing connection through welding, and the joints of the heat exchange tubes 9 and the corresponding through holes in the serpentine tube type cooling heat exchanger do not need to be welded and sealed, so that the welding step is omitted.
As shown in fig. 11 and 12, in this embodiment, each heat exchange tube 9 on the serpentine tube cooling heat exchanger is a fin tube with an H-shaped fin 91, and each heat exchange tube 9 located at the uppermost layer of the serpentine tube cooling heat exchanger is further provided with a comb-shaped anti-wear cover 92, which is sleeved on the upper half cylinder surface of each heat exchange tube 9 located at the uppermost layer of the serpentine tube cooling heat exchanger. The serpentine tube type cooling heat exchanger is also provided with a supporting plate for supporting each heat exchange tube, the supporting plate is provided with a plurality of supporting holes, and each heat exchange tube 9 is inserted into the corresponding supporting hole. Because the heat exchange tube 9 pipe wall is thinner, for protecting heat exchange tube 9, this embodiment still fixes the inlay card in each support hole and is provided with the protective sheath, and each heat exchange tube 9 alternates in corresponding the protective sheath.
As shown in fig. 1 and 3, the inlet water collecting tank 311 of each cooling module 31 in the cooling module group 3 at the lowest layer of the smoke box cavity is provided with a water discharging pipe 313 with a valve, and the opening of the valve on any water discharging pipe 313 can discharge the refrigerant in each cooling module 31 in the corresponding row through the water discharging pipe 313. The water outlet header 311 of each cooling module 31 in the cooling module group 3 at the uppermost layer of the inner cavity of the smoke box is provided with an air release pipe 314 with a valve, and the working pressure of each cooling module 31 in the corresponding row can be reduced by opening the valve on any air release pipe 314.
Example two
As shown in fig. 1, the upper part of the smoke box 2 is fixedly supported on the frame 1 through a plurality of upper supporting beams 71, and the lower part of the smoke box 2 is movably supported on the frame 1 through a plurality of lower supporting beams 72. Wherein, the specific structure that smoke box 2 lower part sets up on frame 1 through a plurality of lower supporting beam 72 activity supports does: as shown in fig. 10, a slide support 721 is fixedly provided at an end of each lower support beam 72, a slide groove 11 corresponding to each slide support 721 is provided on the frame 1, and a bottom of each slide support 721 is movably provided in the corresponding slide groove 11. The cooling device can compensate and adjust the expansion and contraction allowance of the smoke box by the sliding of the sliding support seat 721 in the sliding chute 11 during operation. At least one access door 10 is also provided on the smoke box 1 in this embodiment.
As shown in fig. 1 and 5, a vibration-proof structure is provided between each upper support beam 71 and the smoke box 2, and between each lower support beam 72 and the smoke box 2, and the vibration-proof structure is: as shown in fig. 5, 6, 7 and 8, each upper supporting beam 71 or lower supporting beam 72 is sleeved with an expansion joint 70, each expansion joint 70 is composed of a left horn-shaped box 701 and a right horn-shaped box 702, the large end of the left horn-shaped box 701 and the large end of the right horn-shaped box 702 are connected smoothly and transitionally to form a whole, the left side of the left horn-shaped box 701 is tightly attached to the outer side surface of the smoke box 2 in a sealing manner, a supporting and fixing plate 703 is fixedly arranged on the right horn-shaped box 702, and the expansion joint 70 is fixedly arranged on the corresponding upper supporting beam 71 or lower supporting beam 72 through the supporting and fixing plate 703. In actual manufacturing, each upper support beam 71 and each lower support beam 72 usually adopt a rectangular cylindrical structure, and the inner and outer contours of the expansion joint 70 are rectangular ring structures surrounding the rectangular cylindrical surface corresponding to the upper support beam 71 or the rectangular cylindrical surface corresponding to the lower support beam 72. When the cooling device is operated, the purpose of vibration reduction is achieved by compressing the distance H between the left trumpet-shaped box 701 and the right trumpet-shaped box 702 and releasing the force applied to the left trumpet-shaped box 701 and the right trumpet-shaped box 702 to make the small end of the left trumpet-shaped box 701 and the small end of the right trumpet-shaped box 702 respectively away in opposite directions.
As shown in fig. 1, fig. 2 and fig. 9, the smoke box 2 is composed of a trumpet-shaped smoke inlet flue 23, a first flue 24, a second flue 25 and a trumpet-shaped smoke outlet flue 26 from top to bottom in sequence, the first flue 24 and the second flue 25 are hermetically connected through a flue expansion joint 20, the flue expansion joint 20 is composed of an upper trumpet-shaped box 201 and a lower trumpet-shaped box 202, and the large end of the upper trumpet-shaped box 201 and the large end of the lower trumpet-shaped box 202 are connected into a whole in a smooth transition mode. In actual manufacturing production, each smoke box 2 usually adopts a rectangular cylindrical structure, in this case, the inner and outer contours of the flue expansion joint 20 are rectangular ring structures surrounding the rectangular cylindrical surface of the smoke box 2, in this case, the specific structure of the flue expansion joint 20 can refer to the structure of the expansion joint 70 in fig. 7, and the specific operating principle of the flue expansion joint 20 is the same as that of the expansion joint 70. In actual manufacturing production, the first flue 24 and the second flue 25 can also be hermetically connected through a corrugated pipe flexible compensator made of high-temperature-resistant and corrosion-resistant materials.
Still set up on smoke box 2 and carry out dust removal treatment to each cooling module 31 in the smoke box inner chamber have ash removal device, ash removal device's structure do: a plurality of connecting through holes 27 are formed in the smoke box 2 above each group of cooling module groups 3, the air outlets of the high-pressure air pipes penetrate through the corresponding connecting through holes 27 in a sealing mode and then stretch into the inner cavity of the smoke box, and the air inlets of the high-pressure air pipes are connected with a high-pressure air source. The ash removal device can be used for regularly removing ash for shaping each cooling module 31, so that ash deposition is reduced, and the cooling effect of the cooling device is further improved.
As shown in fig. 1 and 5, each upper support 81 is fixedly provided to the smoke box 2 above each upper support beam 71, and each upper support 81 is provided to the corresponding upper support beam 71 via an upper fixed support 82. Lower support bases 83 are fixedly provided to the smoke box 2 above the lower support beams 72, and each lower support base 83 is provided to the corresponding lower support beam 72 via a lower fixed support 84. The limiting members 12 are fixedly provided on the machine frame 1 at both end portions of each upper support beam 71 and both end portions of the lower support beam 72, that is: the lateral positions of the upper support beams 71 and the lower support beams 72 are restricted by the corresponding stoppers 12.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any modifications or equivalent changes made in accordance with the technical spirit of the present invention are also within the scope of the present invention.
The utility model has the advantages that ① each cooling module 31 in each row is connected in series through S-shaped water pipe 42, the delivery port of each upper water pipe 43 is connected in parallel, the water inlet of each lower water pipe 41 is connected in parallel, thereby the media medium temperature in each cooling module 31 in the same layer of cooling module group 3 is uniform and distributed, the gradual step cooling of the flue gas entering the inner cavity of the smoke box from the flue gas inlet 21 is realized, the multiple working conditions are adapted, the heat transfer efficiency of the unit is effectively improved under different working conditions, the cooling effect of the cooling device is very good, the recovery rate of the heat loss of the flue gas is high, ② the cooling device operates, the heat expansion allowance of the smoke box is adjusted through the matching compensation of the flue expansion joints 20, the expansion joints 70, the sliding support seats 721 and the corresponding sliding chutes 11, the high temperature resistance of the smoke box is good, besides, the vibration reduction is performed on the smoke box through the flue expansion joints 20 and the expansion joints 70 when the cooling device operates, and the service life of the smoke box.
Claims (10)
1. A cooling and heat exchanging device for industrial flue gas comprises: frame and the heat transfer device who sets up in the frame, heat transfer device include the smoke box, smoke box top horn mouth is the flue gas inlet, smoke box bottom horn mouth is exhanst gas outlet, its characterized in that: at least two groups of cooling module groups are sequentially arranged in the inner cavity of the smoke box from top to bottom, each group of cooling module groups consists of a plurality of cooling modules which are sequentially arranged from left to right, and the number of the cooling modules in each group of cooling module groups is the same; the inlet of each cooling module in the cooling module group at the lowest layer of the inner cavity of the smoke box is communicated with the water outlet of the water inlet header box through a corresponding lower water pipe, and each lower water pipe is provided with a water inlet stop valve; the outlet of each cooling module in the cooling module group on the uppermost layer of the inner cavity of the smoke box is communicated with the water inlet of the water outlet header box through a corresponding upper water conveying pipe, and each upper water conveying pipe is provided with a water outlet stop valve; the outlets of the water outlet header tanks of the cooling modules positioned in the same row are respectively communicated with the inlets of the water inlet header tanks of the cooling modules positioned above the outlets of the water outlet header tanks through corresponding S-shaped water conveying pipes; the water inlet main collecting tank is provided with a main water discharge pipe with a valve, and the water outlet main collecting tank is provided with a main gas discharge pipe with a valve.
2. The cooling and heat exchanging device for the industrial flue gas as claimed in claim 1, wherein: the cooling module is a coiled cooling heat exchanger, a front baffle of each coiled cooling heat exchanger is hermetically clamped and embedded in a corresponding first through hole on the smoke box, and a tail baffle of each coiled cooling heat exchanger is hermetically clamped and embedded in a corresponding second through hole on the smoke box; the tail part of the coiled pipe type cooling heat exchanger is provided with a bent pipe protection box which is fixedly arranged on the tail baffle plate, and all heat exchange pipes extending out of the tail baffle plate and the coiled pipe joint sealing cover are covered in the bent pipe protection box.
3. The cooling and heat exchanging device for the industrial flue gas as claimed in claim 1 or 2, wherein: the water inlet header of each cooling module in the cooling module group at the lowest layer of the inner cavity of the smoke box is respectively provided with a water discharge pipe with a valve, and the opening of the valve on any water discharge pipe can discharge the media in each cooling module in the corresponding row through the water discharge pipe; the water outlet header of each cooling module in the cooling module group on the uppermost layer of the inner cavity of the smoke box is provided with an air release pipe with a valve, and the working pressure of each cooling module in the corresponding row can be reduced by opening the valve on any air release pipe.
4. The cooling and heat exchanging device for the industrial flue gas as claimed in claim 1 or 2, wherein: the water inlet of the water inlet header is communicated with the water outlet of the water inlet pipe, and a filter, a flow regulating valve and a water pump are sequentially arranged on the water inlet pipe from the water inlet of the water inlet pipe to the water outlet of the water inlet pipe.
5. The cooling and heat exchanging device for the industrial flue gas as claimed in claim 1, wherein: the upper part of the smoke box is fixedly supported on the rack through a plurality of upper supporting beams, and the lower part of the smoke box is movably supported on the rack through a plurality of lower supporting beams; all be provided with a antivibration structure between every upper support beam and smoke box and between every lower support beam and smoke box, the antivibration structure be: all the cover is equipped with the expansion joint on every upper supporting beam or lower supporting beam, the expansion joint comprises left loudspeaker form box and right loudspeaker form box, and the smooth transitional coupling of left loudspeaker form box main aspects and right loudspeaker form box main aspects constitutes integratively, left loudspeaker form box left side is sealed to paste and is leaned on the smoke box lateral surface, the fixed supporting plate that is provided with on right loudspeaker form box, the expansion joint passes through the fixed setting of supporting plate on corresponding upper supporting beam or lower supporting beam.
6. The cooling and heat exchanging device for the industrial flue gas as claimed in claim 5, wherein: the smoke box from top to bottom advances cigarette flue, first flue, second flue and loudspeaker form by loudspeaker form in proper order and goes out the cigarette flue and constitute, and first flue and second flue pass through flue expansion joint sealing connection, and the flue expansion joint comprises last loudspeaker form box and lower loudspeaker form box, and goes up loudspeaker form box main aspects and the smooth transitional coupling of lower loudspeaker form box main aspects and constitute integratively.
7. The cooling and heat exchanging device for the industrial flue gas as claimed in claim 5, wherein: the smoke box is formed by a horn-shaped smoke inlet flue, a first flue, a second flue and a horn-shaped smoke outlet flue from top to bottom in sequence, and the first flue and the second flue are connected in a sealing mode through a corrugated pipe flexible compensator made of high-temperature-resistant and corrosion-resistant materials.
8. The cooling and heat exchanging device for the industrial flue gas according to claim 6 or 7, characterized in that: still set up on the smoke box and carry out dust removal treatment to each cooling module in the smoke box inner chamber have ash removal device, ash removal device's structure do: a plurality of connecting through holes are formed in the smoke box above each cooling module group, the air outlet of each high-pressure air pipe penetrates through the corresponding connecting through hole in a sealing mode and then extends into the inner cavity of the smoke box, and the air inlet of each high-pressure air pipe is connected with a high-pressure air source.
9. The cooling and heat exchanging device for the industrial flue gas as claimed in claim 5, wherein: the end parts of the lower supporting beams are fixedly provided with sliding supporting seats, the rack is provided with sliding chutes corresponding to the sliding supporting seats, and the bottoms of the sliding supporting seats are movably arranged in the corresponding sliding chutes.
10. The cooling and heat exchanging device for the industrial flue gas as claimed in claim 5, wherein: the smoke box above each upper supporting beam is fixedly provided with an upper supporting seat, and each upper supporting seat is arranged on the corresponding upper supporting beam through an upper fixed support; lower supporting seats are fixedly arranged on the smoke boxes above the lower supporting beams, and each lower supporting seat is arranged on the corresponding lower supporting beam through a lower fixed support; limiting parts are fixedly arranged on the machine frames which are positioned at the end parts of the two ends of each upper supporting beam and the end parts of the two ends of each lower supporting beam; at least one access door is also arranged on the smoke box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920780150.7U CN210345513U (en) | 2019-05-28 | 2019-05-28 | Cooling heat exchange device for industrial flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN110145755A (en) * | 2019-05-28 | 2019-08-20 | 江苏龙净节能科技有限公司 | A kind of cooling heat exchange device of industrial smoke |
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