CN216523304U - Calcium chloride spray drying heat recovery device - Google Patents
Calcium chloride spray drying heat recovery device Download PDFInfo
- Publication number
- CN216523304U CN216523304U CN202123367769.1U CN202123367769U CN216523304U CN 216523304 U CN216523304 U CN 216523304U CN 202123367769 U CN202123367769 U CN 202123367769U CN 216523304 U CN216523304 U CN 216523304U
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- Prior art keywords
- heat exchanger
- calcium chloride
- spray drying
- communicated
- recovery device
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- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 title claims abstract description 37
- 238000011084 recovery Methods 0.000 title claims abstract description 28
- 238000001694 spray drying Methods 0.000 title claims abstract description 23
- 229910001628 calcium chloride Inorganic materials 0.000 title claims abstract description 21
- 239000001110 calcium chloride Substances 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000009833 condensation Methods 0.000 abstract description 4
- 230000005494 condensation Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000000712 assembly Effects 0.000 abstract description 3
- 238000000429 assembly Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 239000000155 melt Substances 0.000 abstract 1
- 238000005406 washing Methods 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a calcium chloride spray drying heat recovery device which comprises a primary heat exchanger, a secondary heat exchanger and a motor, wherein connecting rings are rotatably arranged at two ends of the primary heat exchanger and the secondary heat exchanger, and heat exchange assemblies are arranged in the primary heat exchanger and the secondary heat exchanger. This calcium chloride spray drying heat recovery unit, through setting up the two-stage heat exchanger, the process route of calcium chloride solution is flowed through the one-level heat exchanger by the second grade heat exchanger, make the cold medium temperature that the tail gas that gets into the one-level heat exchanger among the heat recovery system contacted be higher than the inside cold medium temperature of second grade heat exchanger, thereby the bigger degree fully retrieves the heat, make the temperature of outer exhaust gas further reduce, simultaneously through setting up the heat exchange tube, the heat exchanger rotates and carries out indirect heat transfer of relieving, the tail gas of having avoided the vapor is after heat recovery, the vapor condensation melts dilute solution in the cold medium, thereby the rate of reuse of calcium chloride solution has been improved.
Description
Technical Field
The utility model relates to the technical field of heat recovery processes, in particular to a calcium chloride spray drying heat recovery device.
Background
The tail gas is dedusted by cyclone to remove carried powdery materials, the heat is recovered by two stages of washing towers and then is discharged by a draught fan, the washing liquid adopts a calcium chloride solution entering the system, and the heat of the tail gas is absorbed in the washing process to increase the temperature of the solution.
In the process of recovering heat, a large amount of water vapor contained in tail gas is condensed in the washing process and mixed into a calcium chloride solution, so that the calcium chloride solution is diluted, the diluted solution after being heated enters spray drying again, the spray drying heat load is large, heat is wasted, the calcium chloride spray drying heat recovery device is provided, and the direct contact heat exchange is replaced by indirect contact heat exchange to solve the problem.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a calcium chloride spray drying heat recovery device, which has the advantages of high heat recovery rate, energy conservation, consumption reduction and the like, and solves the problem of the existing heat recovery process.
In order to achieve the purpose, the utility model provides the following technical scheme:
the calcium chloride spray drying heat recovery device comprises a primary heat exchanger, a secondary heat exchanger and a motor, wherein connecting rings are rotatably arranged at two ends of the primary heat exchanger and the secondary heat exchanger, and heat exchange assemblies are arranged in the primary heat exchanger and the secondary heat exchanger;
the heat exchange assembly comprises heat exchange tubes fixedly installed in the inner walls of the first-stage heat exchanger and the second-stage heat exchanger, connecting grooves are formed in one side face, facing the first-stage heat exchanger and the second-stage heat exchanger, of the connecting ring, the heat exchange tubes are communicated with the connecting grooves, the outer portion of the connecting ring is communicated with the conduits, and the conduits are communicated with hoses.
Further, the outside of the connecting ring is fixedly provided with a fixing pin, the connecting ring is fixedly provided with a communicating port, and a communicating pipe is communicated between the two communicating ports.
Furthermore, a water outlet is communicated with the communicating pipe, and a spiral groove facing the water outlet is formed in the inner wall of the communicating pipe.
Furthermore, the outside of the conduit on the secondary heat exchanger is communicated with a calcium chloride solution tank, and the conduit on the primary heat exchanger is communicated with a liquid pump.
Furthermore, sealing rings are fixedly mounted on two sides of the first-stage heat exchanger and the second-stage heat exchanger, and the sealing rings are tightly connected inside the connecting grooves in a sliding mode.
Furthermore, racks are fixedly arranged outside the primary heat exchanger and the secondary heat exchanger, a gear shaft is fixedly arranged on the output end of the motor, and the gear shaft is meshed with the racks in a tooth form.
Furthermore, a corrugated pipe is fixedly installed on a communication port of the second-stage heat exchanger far away from one side of the first-stage heat exchanger, and the corrugated pipe is communicated with an induced draft fan.
Furthermore, the front side of the primary heat exchanger and the front side of the secondary heat exchanger are both fixedly provided with mounting tables, and the motor is fixedly arranged on the mounting tables.
Compared with the prior art, the technical scheme of the application has the following beneficial effects:
the calcium chloride spray drying heat recovery device is provided with a two-stage heat exchanger, a calcium chloride solution flows through a first-stage heat exchanger from a second-stage heat exchanger through a process route of the calcium chloride solution, the temperature of the cold medium contacted with the tail gas entering the primary heat exchanger in the heat recovery system is higher than that of the cold medium in the secondary heat exchanger, thereby fully recovering heat to a greater extent, further reducing the temperature of the discharged tail gas, simultaneously indirectly removing heat exchange by arranging the heat exchange tube and the heat exchanger to rotate, avoiding the tail gas containing water vapor from being condensed and melted into a cold medium to dilute solution after heat recovery, therefore, the reuse rate of the calcium chloride solution is improved, the energy consumption of a subsequent spray drying system for drying the solution can be reduced, the resource waste is reduced, the practical significance of energy conservation and consumption reduction is achieved, and the method has obvious improvement compared with the existing heat recovery process.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of an attachment ring structure according to the present invention;
FIG. 3 is a cross-sectional view of a primary heat exchanger according to the present invention;
FIG. 4 is a schematic view of the inside structure of the communicating tube according to the present invention;
FIG. 5 is a flow chart of the present invention.
In the figure: the heat exchanger comprises a first-stage heat exchanger 1, a second-stage heat exchanger 2, a connecting ring 3, a communicating port 4, a communicating pipe 5, a water outlet 6, a fixing pin 7, a connecting groove 8, a guide pipe 9, a heat exchange pipe 10, a sealing ring 11, a rack 12, a motor 13, a gear shaft 14, a hose 15, a liquid pump 16, a calcium chloride solution tank 17, a corrugated pipe 18, an induced draft fan 19 and a spiral groove 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the heat recovery device for spray drying of calcium chloride in the embodiment includes a first-stage heat exchanger 1 and a second-stage heat exchanger 2, both the first-stage heat exchanger 1 and the second-stage heat exchanger 2 are tubular heat exchangers, the first-stage heat exchanger 1 and the second-stage heat exchanger 2 have the same structure and are connected to the inside of a heat recovery system, both ends of the first-stage heat exchanger 1 and the second-stage heat exchanger 2 are rotatably provided with connecting rings 3, fixing pins 7 are fixedly arranged outside the connecting rings 3, the connecting rings 3 are supported by the fixing pins 7, so that the first-stage heat exchanger 1 or the second-stage heat exchanger 2 is supported, and the placing stability of the first-stage heat exchanger 1 and the second-stage heat exchanger 2 is maintained.
In this embodiment, fixed mounting has intercommunication mouth 4 on the side that one-level heat exchanger 1 or second grade heat exchanger 2 was kept away from to go up 3, the intercommunication has communicating pipe 5 between two intercommunication mouths 4 on one-level heat exchanger 1 and the relative one side of second grade heat exchanger 2, communicating pipe 5 is used for communicating tail gas, simultaneously in order to collect the discharge to the comdenstion water of the inside condensation of one-level heat exchanger 1, the intercommunication has outlet 6 on communicating pipe 5, outlet 6 and communicating pipe 5 form the three-way pipe jointly, and seted up helicla flute 20 on communicating pipe 5's the inner wall, helicla flute 20 can be to flowing through or the comdenstion water of condensation on communicating pipe 5 leads, make the comdenstion water flow towards outlet 6 and discharge, 6 outside fixed mounting in outlet has the water valve simultaneously, thereby be convenient for control the discharge recovery of comdenstion water.
It should be noted that the first-stage heat exchanger 1 and the second-stage heat exchanger 2 are internally provided with heat exchange assemblies, which can perform good heat exchange between circulating and internal exhaust gas, thereby realizing heat recovery.
The heat exchange assembly in the embodiment comprises heat exchange tubes 10 fixedly installed in the inner walls of a primary heat exchanger 1 and a secondary heat exchanger 2, a connecting ring 3 is provided with a connecting groove 8 on one side surface facing the primary heat exchanger 1 and the secondary heat exchanger 2, the heat exchange tubes 10 are communicated with the connecting groove 8, the connecting ring 3 is communicated with a conduit 9 outside, the primary heat exchanger 1 and the secondary heat exchanger 2 are communicated with two conduits 9, the conduits 9 and the heat exchange tubes 10 provide a cold medium calcium chloride circulation space, meanwhile, the circulation direction of calcium chloride flows from the conduit 9 on one side surface of the secondary heat exchanger 2 far away from the primary heat exchanger 1 to the conduit 9 on one side of the primary heat exchanger 1 far away from the secondary heat exchanger 2, a hose 15 is communicated between the two conduits 9 on one side of the secondary heat exchanger 2 close to the primary heat exchanger 1, and the hose 15 is used for conducting calcium chloride solution circulating in the primary heat exchanger 1 and the secondary heat exchanger, the outside of the conduit 9 on the secondary heat exchanger 2 is communicated with a calcium chloride solution tank 17, and the conduit 9 on the primary heat exchanger 1 is communicated with a liquid pump 16.
In this embodiment, the sealing rings 11 are fixedly mounted on two sides of the first-stage heat exchanger 1 and the second-stage heat exchanger 2, and the sealing rings 11 are tightly and slidably connected to the inside of the connecting groove 8, so that the calcium chloride medium does not leak when the first-stage heat exchanger 1 or the second-stage heat exchanger 2 rotates relative to the connecting ring 3.
It should be noted that, in order to improve the indirect heat exchange rate between the heat exchange tube 10 and the tail gas containing heat, racks 12 are fixedly installed outside the primary heat exchanger 1 and the secondary heat exchanger 2, motors 13 are installed outside the primary heat exchanger 1 and the secondary heat exchanger 2, and a gear shaft 14 meshed with the racks 12 in a tooth form is fixedly installed at the output end of the motors 13.
It can be understood that the motor 13 is fixedly installed on the ground through the installation table, and the gear shaft 14 on the output end of the motor 13 is kept corresponding to the rack 12, so as to drive the first-stage heat exchanger 1 and the second-stage heat exchanger 2 to rotate, so that the heat exchange tube 10 can rotate and circulate to perform indirect contact and good heat exchange on the rising hot tail gas.
In this embodiment, the corrugated pipe 18 is fixedly installed on the communication port 4 on the side of the secondary heat exchanger 2 far away from the primary heat exchanger 1, and the corrugated pipe 18 is communicated with the induced draft fan 19.
The working principle of the above embodiment is as follows:
high-temperature tail gas is introduced into the primary heat exchanger 1 through a communication port 4 on the primary heat exchanger 1 and flows towards the inside of the secondary heat exchanger 2 through a communication pipe 5, a calcium chloride solution in a calcium chloride solution tank 17 is taken as a heat exchange cold medium and enters the inside of a connecting ring 3 through a conduit 9, the calcium chloride solution sequentially passes through the secondary heat exchanger 2 and the primary heat exchanger 1 through a plurality of communicated heat exchange pipes 10 and hoses 15 and is recovered from the heat of the high-temperature tail gas obtained by spray drying, and is pressurized by a liquid pump 16 and enters a spray drying system, water vapor in the high-temperature tail gas is discharged through a water outlet 6 on the communication pipe 5 after heat exchange and condensation, and is recycled, meanwhile, the motor 13 drives a gear shaft 14 on an output end to rotate through a driving motor 13, the gear shaft 14 is meshed with a rack 12 through tooth shapes, so that the primary heat exchanger 1 and the secondary heat exchanger 2 rotate, the heat exchange efficiency is improved, so that the temperature of the discharged tail gas is reduced by fully exchanging heat.
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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. Calcium chloride spray drying heat reclamation device, including one-level heat exchanger (1), secondary heat exchanger (2) and motor (13), its characterized in that: the two ends of the primary heat exchanger (1) and the two ends of the secondary heat exchanger (2) are respectively provided with a connecting ring (3) in a rotating way, and heat exchange components are arranged inside the primary heat exchanger (1) and the secondary heat exchanger (2);
the heat exchange assembly comprises heat exchange tubes (10) fixedly installed in the inner walls of a first-stage heat exchanger (1) and a second-stage heat exchanger (2), connecting grooves (8) are formed in one side face, facing the first-stage heat exchanger (1) and the second-stage heat exchanger (2), of a connecting ring (3), the heat exchange tubes (10) are communicated with the connecting grooves (8), the connecting ring (3) is communicated with a conduit (9) in the outer portion, and a hose (15) is communicated between the conduits (9).
2. The calcium chloride spray drying heat recovery device of claim 1, wherein: the outer portion of the connecting ring (3) is fixedly provided with a fixing foot (7), the connecting ring (3) is fixedly provided with a communicating opening (4), and a communicating pipe (5) is communicated between the two communicating openings (4).
3. The calcium chloride spray drying heat recovery device of claim 2, wherein: the communicating pipe (5) is communicated with a water outlet (6), and the inner wall of the communicating pipe (5) is provided with a spiral groove (20) facing the water outlet (6).
4. The calcium chloride spray drying heat recovery device of claim 1, wherein: the outside of the conduit (9) on the secondary heat exchanger (2) is communicated with a calcium chloride solution tank (17), and the conduit (9) on the primary heat exchanger (1) is communicated with a liquid pump (16).
5. The calcium chloride spray drying heat recovery device of claim 1, wherein: the sealing ring (11) is fixedly mounted on two sides of the first-stage heat exchanger (1) and the second-stage heat exchanger (2), and the sealing ring (11) is tightly connected to the inside of the connecting groove (8) in a sliding mode.
6. The calcium chloride spray drying heat recovery device of claim 1, wherein: racks (12) are fixedly mounted outside the primary heat exchanger (1) and the secondary heat exchanger (2), a gear shaft (14) is fixedly mounted at the output end of the motor (13), and the gear shaft (14) is meshed with the racks (12) in a tooth form.
7. The calcium chloride spray drying heat recovery device of claim 1, wherein: the corrugated pipe (18) is fixedly installed on a communication opening on one side, away from the primary heat exchanger (1), of the secondary heat exchanger (2), and the corrugated pipe (18) is communicated with an induced draft fan (19).
8. The calcium chloride spray drying heat recovery device of claim 1, wherein: the front side of the primary heat exchanger (1) and the front side of the secondary heat exchanger (2) are fixedly provided with mounting tables, and the motor (13) is fixedly arranged on the mounting tables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123367769.1U CN216523304U (en) | 2021-12-29 | 2021-12-29 | Calcium chloride spray drying heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123367769.1U CN216523304U (en) | 2021-12-29 | 2021-12-29 | Calcium chloride spray drying heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216523304U true CN216523304U (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123367769.1U Active CN216523304U (en) | 2021-12-29 | 2021-12-29 | Calcium chloride spray drying heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216523304U (en) |
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2021
- 2021-12-29 CN CN202123367769.1U patent/CN216523304U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Calcium chloride spray drying heat recovery device Effective date of registration: 20230828 Granted publication date: 20220513 Pledgee: Hubei Yidu Rural Commercial Bank Co.,Ltd. Pledgor: YICHANG HUAHAO NEW MATERIAL TECHNOLOGY Co.,Ltd. Registration number: Y2023980053926 |
|
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20240103 Granted publication date: 20220513 |