CN212692582U - Flue gas heater desalination device - Google Patents
Flue gas heater desalination device Download PDFInfo
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- CN212692582U CN212692582U CN202021370931.8U CN202021370931U CN212692582U CN 212692582 U CN212692582 U CN 212692582U CN 202021370931 U CN202021370931 U CN 202021370931U CN 212692582 U CN212692582 U CN 212692582U
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- atomizer
- spraying
- flue gas
- equipment
- heater
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Abstract
The utility model belongs to environmental protection trade equipment, in particular to flue gas heater demineralizer. The direct-spraying type atomizer and the first spraying atomizer are connected above the heater shell through a compression joint piece, a compressed air inlet is formed in the outer circumferential wall of the first spraying atomizer, a pressure gauge II is arranged on the outer wall, corresponding to the compressed air inlet, of the first spraying atomizer, a hot water inlet is formed in the top end of the first spraying atomizer, and an induced draft fan connector is arranged on the circumferential wall below the heater shell and communicated with the inner cavity of the shell. Two spray atomizers arranged up and down in the device can effectively prevent salt in the flue gas heater from hardening, reduce the workload of workers, reduce the loss of equipment and prolong the service life of the equipment. Meanwhile, hot water is injected in the operation process, so that the normal working condition is ensured, no influence on the operation of equipment is caused, the blockage of a flue in the hardening process is prevented, the load of an induced draft fan is large, air leakage and smoke generation of a system are avoided, and the environment protection is facilitated.
Description
Technical Field
The utility model belongs to environmental protection trade equipment, in particular to flue gas heater demineralizer.
Background
At present, most of existing heaters are waste gas from a deacidification tower, the main component in the deacidification tower is a sodium hydroxide aqueous solution, the acidic flue gas in the system is subjected to neutralization reaction through an alkaline sodium hydroxide aqueous solution, partial salt can be generated in the reaction process, the temperature of saline water at the inlet of the deacidification tower in an alkaline liquor circulation tank is 150 degrees, the temperature at the outlet of the deacidification tower is 70 degrees, the middle part is analyzed, the discharged flue gas has part of water, salt and heat, and the flue gas is easy to evaporate and separate out in a flue gas heating device to form solid salt, so that hardening is caused. The flue can be blocked after hardening, the negative pressure condition of the draught fan to the whole system is influenced, and meanwhile, the salt is easy to corrode and destroy the equipment on the equipment.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned technique not enough, provide a simple structure, the desalination is effectual, increases equipment life's flue gas heater desalination device.
The utility model provides a technical scheme that technical problem adopted is: the flue gas heater desalination device comprises a heater shell, a heating sleeve, a first pressure gauge, a second pressure gauge and a direct-injection atomizer, and is characterized in that the direct-injection atomizer and a first spray atomizer are connected above the heater shell through a compression joint, a compressed air inlet is formed in the outer circumferential wall of the first spray atomizer, the second pressure gauge is arranged on the outer wall of the first spray atomizer corresponding to the compressed air inlet, a hot water inlet is formed in the top end of the first spray atomizer, the first pressure gauge is arranged at the hot water inlet, an induced draft fan connector is arranged on the circumferential wall below the heater shell and communicated with the inner cavity of the shell, the second spray atomizer is arranged at the joint of the induced draft fan connector and the heater shell, and a water spray nozzle of the second spray atomizer corresponds to the inner lower portion.
The utility model has the advantages that: two spray atomizers arranged up and down in the flue gas heater desalting device can effectively prevent salt in the flue gas heater from hardening, reduce the workload of workers, reduce the loss of equipment and prolong the service life of the equipment. Meanwhile, hot water is injected in the operation process, so that the normal working condition is ensured, no influence on the operation of equipment is caused, the blockage of a flue in the hardening process is prevented, the load of an induced draft fan is large, air leakage and smoke generation of a system are avoided, and the environment protection is facilitated.
Drawings
The following description is made in detail by way of example with reference to the accompanying drawings.
FIG. 1 is a sectional view of the structure of a flue gas heater desalination device.
In the figure, 1-heater housing; 2-a flue gas inlet; 3-crimping; 4-a compressed air inlet; 5-hot water inlet; 6-a first pressure gauge; 7-pressure gauge two; 8-spraying a first atomizer; 9-direct spray atomizer; 10-heating the sleeve; 11-spraying atomizer II; 12-draught fan interface.
Detailed Description
In the embodiment, referring to fig. 1, the flue gas heater desalination device is provided with a direct-injection atomizer 9 above a heater shell 1, and a nozzle of the direct-injection atomizer 9 is arranged in a downward direction. The upper end of the direct-injection atomizer 9 and the pressure welding piece 3 on the outer top surface of the heater shell 1 are communicated with a first spray atomizer 8. A compressed air inlet 4 is arranged on the outer wall of the first spray atomizer 8 and communicated with the inner cavity of the first spray atomizer 8, and a pressure gauge II 7 is arranged on the outer wall of the first spray atomizer 8 corresponding to the compressed air inlet 4 and communicated with the inner cavity of the first spray atomizer 8. A hot water inlet 5 is arranged at the top end of the first spray atomizer 8, and a first pressure gauge 6 is arranged at the hot water inlet 5. An induced draft fan interface 12 is arranged on the circumferential wall below the heater shell 1 and communicated with the shell, a second spraying atomizer 11 is arranged at the joint of the induced draft fan interface 12 and the heater shell 1, and a water spray nozzle of the second spraying atomizer 11 corresponds to the lower portion inside the heater shell 1. A heating sleeve 10 is arranged on the periphery of the heater shell 1, and a flue gas inlet 2 is arranged at the top end of the heating sleeve 10 and communicated with the inner cavity of the heater shell 1.
The utility model discloses a theory of operation is: the flue gas heater desalination device washes and destroys plate salt through the impact force of high-pressure water, and most of the plate salt is sodium salt, and the water solubility is better, can dissolve salt to water, reduces intermolecular force. In addition, the enthalpy change of the sprayed hot water in the flue gas heater is small, and the normal operation of the equipment is not affected.
The high pressure can destroy and remove the intensity of dirt, represents the hitting strength and the ability, and the harder the dirt, the higher the pressure requirement, and can meet the destructive power requirement required by the dirt removal and salt removal of almost all the scaling pipes. The flow can provide scouring capability and striking frequency elements, the larger the flow is, the higher the cleaning efficiency is, hot water is sprayed through the upper spray atomizer I8 and the lower spray atomizer II 11, the longer the scouring time is, the higher the cleaning frequency is, and the better the cleaning efficiency is. The high temperature melts the salt-like dirt structure, making it loose with fluid characteristics for easy removal.
Claims (1)
1. A flue gas heater desalination device comprises a heater shell (1), a heating sleeve (10), a pressure gauge I (6), a pressure gauge II (7) and a direct-spraying atomizer (9), and is characterized in that the direct-spraying atomizer (9) and the spraying atomizer I (8) are connected above the heater shell (1) by a compression joint piece (3), a compressed air inlet (4) is arranged on the outer circumferential wall of the spraying atomizer I (8), the pressure gauge II (7) is arranged on the outer wall of the spraying atomizer I (8) corresponding to the compressed air inlet (4), a hot water inlet (5) is arranged at the top end of the spraying atomizer I (8), the pressure gauge I (6) is arranged at the hot water inlet (5), a draught fan interface (12) is arranged on the inner cavity of the lower circumferential wall of the heater shell (1) and communicated with the shell, and the spraying atomizer II (11) is arranged at the joint of the draught fan interface (12) and the heater shell (1), the water spray nozzle of the second spray atomizer (11) corresponds to the lower part in the heater shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021370931.8U CN212692582U (en) | 2020-07-14 | 2020-07-14 | Flue gas heater desalination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021370931.8U CN212692582U (en) | 2020-07-14 | 2020-07-14 | Flue gas heater desalination device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212692582U true CN212692582U (en) | 2021-03-12 |
Family
ID=74897030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021370931.8U Active CN212692582U (en) | 2020-07-14 | 2020-07-14 | Flue gas heater desalination device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212692582U (en) |
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2020
- 2020-07-14 CN CN202021370931.8U patent/CN212692582U/en active Active
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