CN216845756U - Double-medium cooling saturated flue gas spray tower - Google Patents
Double-medium cooling saturated flue gas spray tower Download PDFInfo
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- CN216845756U CN216845756U CN202123009593.2U CN202123009593U CN216845756U CN 216845756 U CN216845756 U CN 216845756U CN 202123009593 U CN202123009593 U CN 202123009593U CN 216845756 U CN216845756 U CN 216845756U
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- cooling air
- flue gas
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Abstract
The utility model provides a two medium cooling saturation flue gas spray towers, a serial communication port, include: a shell 18, a flue gas inlet 2 and a condensed water outlet 3; the cooling air lances 4; cooling water spray pipes 5; a dust removing device 6; a cooling water pipe 7 of the dust removing device; an upper cooling air tube bundle 8; an upper cooling air collection ring 9; an upper cooling air outlet duct 10; a fume exhaust duct 11; a smoke exhaust pipe 12; a sewage discharge outlet 13; a plurality of spray heads 14; an upper cooling air supply ring 15; an upper cooling air supply duct 16; cooling water spray pipe supports 17. Through improving spray column inner structure and spraying structure, improve the recovery effect and the rate of recovery of flue gas waste heat.
Description
Technical Field
The utility model relates to a two medium cooling saturation flue gas spray towers indicates a boiler flue gas desulfurization tower exhaust saturation flue gas waste heat recovery spray tower especially.
Background
With the requirement of national environmental protection policy, large coal-fired and gas-fired boilers are required to be equipped with smoke-discharging desulfurization devices, most of the smoke-discharging desulfurization devices are adopted for smoke-discharging desulfurization, a large amount of water is required to be sprayed into a desulfurization tower, so that the smoke discharged from the desulfurization tower is basically in a saturated state, most of heat is taken away by water vapor in the smoke, the smoke is discharged into the atmosphere along with the smoke discharge, in order to reduce the waste heat loss of the part of smoke, lithium bromide absorption heat pumps are generally adopted for recovering the waste heat of the part of smoke, in the lithium bromide absorption heat pump system, the water vapor in the smoke discharged from the desulfurization tower is condensed by spraying water through spray towers, latent heat of vaporization is released, the heat is absorbed by spray water, part of the water vapor which is not condensed is discharged by the spray towers through exhaust, and the part of the water vapor is discharged by the water vapor
The latent heat of vaporization of (2) is not recycled, resulting in a certain energy waste.
SUMMERY OF THE UTILITY MODEL
The utility model provides a two medium cooling saturation flue gas spray towers improves through to spray tower inner structure and spray structure, improves flue gas waste heat's recovery effect and rate of recovery. The flue gas is cooled by cooling air, part of steam in the cooled flue gas is condensed to release latent heat of vaporization, the heat is absorbed by the cooling air, then the mixed gas of the cooling air and the flue gas is sprayed into cooling water to reduce the temperature, the cooling water has two functions of reducing the temperature of the flue gas to condense the steam and release the heat, and absorbing the heat released by saturated steam in the flue gas, and the cooling water and the condensed water are converged at the lower part of the spray tower and are discharged out of the spray tower from a condensed water outlet.
A double-medium cooling saturated flue gas spray tower comprises a shell, a flue gas inlet and a condensed water outlet; cooling the air ejector tube; cooling water spray pipes; a dust removal device; a cooling water pipe of the dust removing device; an upper cooling air tube bundle; an upper cooling air collection ring; an upper cooling air outlet pipe; a smoke exhaust duct; a smoke exhaust pipe; a sewage draining outlet; a plurality of spray heads; an upper cooling air supply ring; an upper cooling air supply duct; and the cooling water spray pipe supports.
Optionally, the flue gas inlet of the spray tower is positioned at the lower part of the shell, so that the flue gas uniformly flows into the spray tower, the flue gas inlet adopts a bilateral symmetrical arrangement structure, and the flue gas flows to the upper part in the shell and is discharged from an upper smoke discharge pipe;
optionally, the shell main body is of an equal-diameter cylindrical structure, the lower part of the shell main body is a condensed water collecting part, the upper part of the shell main body is provided with a contraction type smoke exhaust guide pipe, the smoke exhaust pipe is positioned at the upper part of the smoke exhaust guide pipe, and smoke is finally exhausted through the smoke exhaust pipe;
optionally, two layers of cooling air jet pipes, cooling water jet pipes and a dust removal device are arranged in the shell, and an upper cooling air pipe bundle is arranged at the upper part of the shell;
optionally, the cooling air injection pipe injects low-temperature air into the shell through the nozzle, the low-temperature air is fully mixed with the flue gas, the temperature of the flue gas is reduced, and saturated water vapor in the flue gas is condensed to release latent heat of vaporization;
optionally, the cooling water spray pipe sprays cooling water into the shell through the nozzle, the cooling water is fully mixed with the flue gas, the temperature of the flue gas is reduced, saturated water vapor in the flue gas is condensed to release latent heat of vaporization, and meanwhile, heat in the flue gas is absorbed;
optionally, the dust removal device is positioned at the upper part of the cooling water spray pipe and is used for adsorbing dust in the flue gas and purifying the flue gas, a cooling water pipeline is arranged in the dust removal device, and the temperature of the flue gas is reduced while the dust in the flue gas is removed by the dust removal device, so that saturated water vapor in the flue gas is condensed and latent heat of gasification is released;
optionally, the upper cooling air tube bundle is of a multi-tube side-by-side structure, one end of the upper cooling air tube bundle is communicated with the upper cooling air supply ring, cooling air enters the upper cooling air tube bundle, is subjected to heat exchange with flue gas, condenses part of water vapor in the flue gas, is subjected to heat exchange with the flue gas, increases the temperature of the cooling air, and then flows to the upper cooling air collection ring at the other end; the cooling air is discharged out of the shell through an upper cooling air outlet pipe;
optionally, the upper cooling air tube bundle mainly functions to absorb flue gas waste heat which is not completely absorbed by lower water spray cooling and air spray cooling;
optionally, air discharged from the upper cooling air outlet pipe enters the two lower cooling air jet pipes simultaneously to continue cooling the flue gas, and the lower cooling air pipe bundle and the cooling air jet pipes are in a series structure; the effect is that the cooling steam absorbs the residual heat of the flue gas which is not completely absorbed by the lower part in the upper part cooling air tube bundle, and simultaneously can reduce the temperature of the flue gas, the saturated water in the flue gas is condensed to release heat, the lower part cooling air tube bundle can also absorb the heat, the air after absorbing the heat enters the two cooling air jet pipes, is mixed with the flue gas in the shell, and the heat is absorbed by the cooling water sprayed by the cooling water jet pipes;
optionally, the cooling air jet pipe is of a fish raft type structure, the middle main ventilation pipeline is connected with the external air pipeline, a plurality of branch pipelines are arranged on two sides of the main ventilation pipeline, a plurality of nozzles are arranged on the lower portion and two sides of the pipeline, the secondary structure enables the cooling air to be more fully mixed with the flue gas, the temperature of the flue gas can be rapidly reduced, and saturated water vapor in the flue gas is condensed to release latent heat of vaporization;
optionally, the cooling water spray pipes are supported and fixed on the shell by four cooling water spray pipes and are of a circular structure, one side of each cooling water spray pipe is connected with the external cooling water pipe, and the other side of each cooling water spray pipe is of a disconnected structure;
optionally, a condensed water recovery pipeline and a sewage discharge outlet are arranged at the lower part of the shell, condensed water and cooling water of the flue gas are collected at the lower part of the shell and are discharged out of the shell through the condensed water recovery pipeline;
drawings
Embodiments of the present invention are described in detail below with reference to the attached drawing figures, wherein:
FIG. 1 shows a double-medium cooling saturated flue gas spray tower of the embodiment of the utility model
FIG. 2 is a cooling water piping diagram of a saturated flue gas spray tower with two media cooling according to an embodiment of the present invention
FIG. 3 is a view of the embodiment of the present invention showing a cooling air pipeline structure of a dual-media cooling saturated flue gas spray tower
FIG. 4 is a structural diagram of an upper air cooling pipeline of a dual-medium cooling saturated flue gas spray tower of the embodiment of the present invention
Description of reference numerals:
1. a spray tower; 2. a flue gas inlet; 3. a condensed water outlet; 4. cooling the air ejector tube; 5. cooling water spray pipes; 6. a dust removal device; 7. a cooling water pipe of the dust removing device; 8. an upper cooling air tube bundle; 9. An upper cooling air collection ring; 10. an upper cooling air outlet pipe; 11. a smoke exhaust duct; 12. a smoke exhaust pipe; 13. a sewage draining outlet; 14. a spray head; 15. an upper cooling air supply ring; 16. an upper cooling air supply duct; 17. cooling water spray pipe support
Detailed Description
Referring now to the drawings, a schematic of a dual media cooling saturated flue gas spray tower as disclosed in the present invention will be described in detail. Although the drawings are provided to present some embodiments of the invention, the drawings are not necessarily to scale of particular embodiments, and certain features may be exaggerated, removed, or partially sectioned to better illustrate and explain the present disclosure. The appearances of the phrase "in the drawings" or similar language in the specification are not necessarily referring to all drawings or examples.
The term "about" or "approximately" in the present application will be understood by those of ordinary skill in the art and will vary to some extent depending on the context in which the term is used.
As shown in fig. 1, a two-medium cooling saturated flue gas spray tower 1 according to an embodiment of the present invention comprises a shell 18, a flue gas inlet 2, and a condensed water outlet 3; cooling the air lances 4; cooling water spray pipes 5; a dust removing device 6; a cooling water pipe 7 of the dust removing device; an upper cooling air tube bundle 8; an upper cooling air collection ring 9; an upper cooling air outlet duct 10; a fume exhaust duct 11; a smoke exhaust pipe 12; a sewage discharge outlet 13; a plurality of spray heads 14; an upper cooling air supply ring 15; an upper cooling air supply duct 16; cooling water spray pipe supports 17;
in the embodiment of the utility model, the flue gas inlet 2 of the spray tower 1 is positioned at the lower part of the shell 18, so that the flue gas uniformly flows into the spray tower 1, the flue gas inlet 2 adopts a bilateral symmetrical arrangement structure, and the flue gas flows to the upper part in the shell 18 and is discharged from the upper smoke discharge pipe 12;
in the embodiment of the utility model, the main body of the shell 18 is a cylinder structure with equal diameter, the lower part is a condensed water collecting part, the upper part is provided with a contraction type smoke exhaust duct 11, the smoke exhaust duct 12 is positioned at the upper part of the smoke exhaust duct 11, and the smoke is finally discharged through the smoke exhaust duct 12;
in the embodiment of the utility model, two layers of cooling air jet pipes 4, cooling water spray pipes 5 and dust removing devices 6 are arranged in the shell 18, and an upper cooling air pipe bundle 8 is arranged at the upper part;
in the example of the utility model, the cooling air jet pipe 4 passes through the nozzle 14 and spouts the low temperature air into casing 18 in, with the flue gas intensive mixing, reduces the flue gas temperature, makes the saturated vapor in the flue gas condense and emit latent heat of vaporization.
In the example of the utility model, cooling water spray pipe 5 spouts the cooling into casing 18 through nozzle 14 in, with the flue gas intensive mixing, reduces the flue gas temperature, makes the saturated vapor in the flue gas condense and emit latent heat of vaporization, absorbs the heat in the flue gas simultaneously.
The utility model discloses in the example, dust collector 6 is located 5 upper portions of cooling water spray pipe, and the effect is the dust in the absorption flue gas, purifies the flue gas, is provided with cooling water pipeline 7 in dust collector 6, when dust collector 6 detach the interior dust of flue gas, reduces the flue gas temperature, makes saturated vapor condense in the flue gas, emits the latent heat of gasification.
In the embodiment of the utility model, the upper cooling air pipe bundle 8 is in a multi-pipe side-by-side structure, one end of the upper cooling air pipe bundle is communicated with the upper cooling air supply ring 15, cooling air enters the upper cooling air pipe bundle 13, is subjected to heat exchange with flue gas, condenses partial water vapor in the flue gas, is subjected to heat exchange with the flue gas, is heated, and then flows to the upper cooling air collecting ring 9 at the other end; is discharged out of the housing through the upper cooling air outlet pipe 10;
in the embodiment of the utility model, the upper cooling air pipe bundle 8 mainly functions to absorb the flue gas waste heat which is not completely absorbed by the lower water spray cooling and the air spray cooling;
in the embodiment of the present invention, the air discharged from the upper cooling air outlet duct 10 enters the lower two cooling air jet pipes 4 simultaneously, the flue gas is cooled continuously, and the lower cooling air tube bundle 8 and the cooling air jet pipes 4 are in a series structure; the effect of the method is that the cooling steam absorbs the flue gas waste heat which is not completely absorbed at the lower part in the upper part cooling air tube bundle 8, the flue gas temperature can be reduced, the saturated water in the flue gas is condensed to release heat, the part cooling air tube bundle 8 can also absorb the heat, the air after absorbing the heat enters the two cooling air jet pipes 4 and is mixed with the flue gas in the shell 18, and the heat is absorbed by the cooling water sprayed by the cooling water jet pipe 5;
in the embodiment of the utility model, the cooling air jet pipe 4 is in a fish raft structure, a middle main vent pipeline is connected with an external air pipeline, a plurality of branch pipelines are arranged at two sides, a plurality of nozzles 14 are arranged at the lower part and two sides of the pipeline, and a secondary structure enables the cooling air to be more fully mixed with the flue gas, so that the temperature of the flue gas can be quickly reduced, and saturated water vapor in the flue gas is condensed to release latent heat of vaporization;
in the embodiment of the utility model, the cooling water spray pipe 5 is fixed on the shell 18 by four cooling water spray pipe supports 17, the cooling water spray pipe 5 is in a circular structure, one side is connected with an external cooling water pipe, and the other side is in a disconnected structure;
in the embodiment of the utility model, the lower part of the shell 18 is provided with a condensed water recovery pipeline 3 and a sewage discharge outlet 13, the condensed water and the cooling water of the flue gas are collected at the lower part of the shell 18 and are discharged out of the shell 20 through the condensed water recovery pipeline 3;
the structure size of all the double-medium cooling saturated flue gas spray towers in the utility model is not explained, and the detailed design needs to be designed according to the specific field condition of the project;
while the exemplary systems and methods of the present invention have been particularly shown and described with reference to the foregoing embodiments, it is merely illustrative of the best modes for carrying out the systems and methods. It will be appreciated by those skilled in the art that various changes in the embodiments of the systems and methods described herein may be made in practicing the systems and/or methods without departing from the spirit and scope of the invention as defined in the appended claims. It is intended that the following claims define the scope of the system and method and that the system and method within the scope of these claims and their equivalents be covered thereby. The above description of the present system and method should be understood to include all new and non-obvious combinations of elements described herein, and claims may be presented in this or a later application to any new and non-obvious combination of elements. Moreover, the foregoing embodiments are illustrative, and no single feature or element is essential to all possible combinations that may be claimed in this or a later application.
Claims (7)
1. The utility model provides a two medium cooling saturation flue gas spray towers which characterized in that includes: the device comprises a shell (18), a flue gas inlet (2), a condensed water outlet (3), a cooling air jet pipe (4), a cooling water spray pipe (5), a dust removal device (6), a cooling water pipe (7) of the dust removal device, an upper cooling air pipe bundle (8), an upper cooling air collecting ring (9), an upper cooling air outlet pipe (10), a smoke exhaust guide pipe (11), a smoke exhaust pipe (12), a sewage outlet (13), a plurality of spray heads (14), an upper cooling air supply ring (15), an upper cooling air supply pipe (16) and a cooling water spray pipe support (17);
a smoke exhaust pipe (12), an upper cooling air pipe bundle (8), a dust removal device (6), a cooling water spray pipe (5), a cooling air spray pipe (4) and a flue gas inlet (2) are sequentially arranged in the shell (18) from top to bottom.
2. The dual-medium cooling saturated flue gas spray tower of claim 1, wherein a certain number of spray heads are arranged on the cooling air spray pipe (4) and the cooling water spray pipe (5).
3. The dual-medium cooling saturated flue gas spray tower according to claim 1, wherein a group of cooling air injection pipes (4), cooling water injection pipes (5) and dust removal devices (6) are a group of temperature reduction units, and a plurality of groups of temperature reduction units can be arranged in one spray tower.
4. The dual-medium cooling saturated flue gas spray tower of claim 1, wherein an upper cooling air tube bundle (8) is arranged at the upper part of the spray tower, and a plurality of cooling air tube bundles (8) can be arranged in one spray tower.
5. The dual media cooled saturated flue gas spray tower of claim 1 wherein the upper cooling air tube bundle (8) and the lower cooling air jet (4) are in communication via piping.
6. The dual-medium cooling saturated flue gas spray tower of claim 1, wherein the cooling air injection pipe (4) is of a fish raft type structure, so that cooling air and flue gas are mixed more fully.
7. The dual media cooling saturated flue gas spray tower of claim 1 wherein the upper cooling air tube bundle (8) is of a multi-U tube type construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123009593.2U CN216845756U (en) | 2021-12-03 | 2021-12-03 | Double-medium cooling saturated flue gas spray tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123009593.2U CN216845756U (en) | 2021-12-03 | 2021-12-03 | Double-medium cooling saturated flue gas spray tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216845756U true CN216845756U (en) | 2022-06-28 |
Family
ID=82104950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123009593.2U Withdrawn - After Issue CN216845756U (en) | 2021-12-03 | 2021-12-03 | Double-medium cooling saturated flue gas spray tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216845756U (en) |
-
2021
- 2021-12-03 CN CN202123009593.2U patent/CN216845756U/en not_active Withdrawn - After Issue
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20220628 Effective date of abandoning: 20230328 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20220628 Effective date of abandoning: 20230328 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |