CN219972803U - Turbine heat recovery device - Google Patents
Turbine heat recovery device Download PDFInfo
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- CN219972803U CN219972803U CN202321694687.4U CN202321694687U CN219972803U CN 219972803 U CN219972803 U CN 219972803U CN 202321694687 U CN202321694687 U CN 202321694687U CN 219972803 U CN219972803 U CN 219972803U
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- air
- turbine
- hood
- module
- heat recovery
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- 238000011084 recovery Methods 0.000 title claims abstract description 23
- 238000004891 communication Methods 0.000 claims abstract description 14
- 238000005507 spraying Methods 0.000 claims abstract description 14
- 238000007664 blowing Methods 0.000 claims description 12
- 238000012546 transfer Methods 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 4
- 210000002268 wool Anatomy 0.000 abstract description 15
- 239000002699 waste material Substances 0.000 abstract description 7
- 238000003912 environmental pollution Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000001035 drying Methods 0.000 description 10
- 239000007921 spray Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000835 fiber Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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Abstract
The utility model relates to a turbine heat recovery device, and belongs to the technical field of heat recovery. The air hood is arranged on the paper making machine frame, the turbine heat exchange module, the in-hood air supply module and the PLC control module are arranged on the outer side of the air hood, the in-hood air supply module is arranged inside the air hood, the turbine heat exchange module is connected with the in-hood air supply module through a total air pipe, and the turbine heat exchange module is connected with the in-hood air supply module in a communication mode. The outdoor fresh air is subjected to steam-gas heat recovery heat exchange through the turbine, the dry air fed into the gas hood is heated, and the dry air is heated through the heat exchanger, so that the heat is recovered to the maximum extent, the steam consumption is saved, the energy utilization rate is improved, the resource waste is avoided, the paper wool is sprayed and removed through the spraying assembly and then is discharged into the atmosphere, the energy consumption is saved, and the damage to the human body and the environmental pollution caused by the fact that the paper wool carried by the exhaust steam of the gas hood is directly discharged into the atmosphere are reduced.
Description
Technical Field
The utility model belongs to the technical field of heat recovery, and particularly relates to a turbine heat recovery device.
Background
In the paper industry, the drying of the paper web is mainly finished by a dryer and an air hood for blowing and drying, and when the paper web is dried, the impact air flow formed after the high-temperature hot air is heated by a fan is directly sprayed to the surface of a dry net through a blowing pipe, so that the dryness of the dry net is improved. Because the hot air has high heat and low humidity and higher flow velocity, the water vapor boundary layer on the surface of the paper web can be effectively destroyed to absorb the water in the paper web, so that the drying can be realized and the energy consumption can be greatly reduced; and the paper web dried by hot air also has good softness, when the wet paper web is supported by the papermaking fabric and enters a drying device for drying operation, the pulp fibers in the wet paper web are almost completely not inhibited by external force to generate internal stress in the whole process, so that the form of the pulp fibers in the paper web always keeps the original loose state, and the dried paper web has good softness.
In the prior art, hot air input from the outside enters the air hood to pass through the paper web, hot air after drying the paper web is directly discharged into the air after being discharged out of the air hood along the air duct, so that waste of residual heat can be caused, complete utilization of energy can not be achieved, resource waste is caused, paper wool can be doped by discharged air flow, and environmental pollution can be caused by direct discharge into the air.
Disclosure of Invention
The utility model aims to provide a turbine heat recovery device which is used for solving the problems that in the prior art, hot air flow after drying paper web is directly discharged into air along an air duct after passing through an air cover, so that waste of residual heat can be caused, complete utilization of energy can not be achieved, and the discharged air flow is doped with paper wool and is directly discharged into the air to cause environmental pollution.
The aim of the utility model can be achieved by the following technical scheme:
the utility model provides a turbine heat recovery device, includes hood, turbine heat transfer module, cover interior air supply module and the PLC control module of locating the paper machine frame, turbine heat transfer module set up in the hood outside, cover interior air supply module set up in the hood is inside, turbine heat transfer module with cover interior air supply module passes through total tuber pipe and connects, turbine heat transfer module and cover interior air supply module with PLC control module communication connection.
As a further scheme of the utility model: the turbine heat exchange module comprises a fresh air filter, a turbine and a centrifugal blower, wherein the fresh air filter is arranged at the inlet end of the turbine input pipeline, and the centrifugal blower is connected to the outlet end of the turbine input pipeline; and the inlet end of the turbine output pipeline is connected with the in-cover air supply module.
As a further scheme of the utility model: the outlet end of the turbine output pipeline is provided with a spraying unit, and the spraying unit is in communication connection with the PLC control module.
As a further scheme of the utility model: the PLC control module comprises a temperature control unit, and the turbine heat exchange module further comprises a steam heater; the steam heater is connected to the output end of the centrifugal blower, and the temperature control unit is in communication connection with the steam heater.
As a further scheme of the utility model: the air supply module in the cover comprises a plurality of blowpipes and a plurality of air nozzles, the input end of the blowpipes is connected with the main air pipe, the output end of the blowpipes is connected with the air nozzles, an air valve is arranged on the blowpipes, and the air valve is in communication connection with the PLC control module.
As a further scheme of the utility model: the air nozzle is provided with a plurality of strip-shaped ventilation openings, and a plurality of the ventilation openings are arranged in parallel.
The utility model has the beneficial effects that:
according to the heat recovery device of the turbine, disclosed by the utility model, outdoor fresh air entering the turbine is filtered and purified through the fresh air filter of the turbine heat exchange module, so that pollution to paper webs is avoided; the method comprises the steps of heating by a turbine, conveying the heated air flow into an air hood by a centrifugal blower, further heating the air flow by a steam heater after passing through the centrifugal blower, conveying the heated air flow into an air supply module in the hood to dry the air flow, taking away moisture of the air flow in the flowing process of the air flow along an air duct by a nozzle, heating outdoor fresh air in an input pipeline of the turbine by residual heat of the air flow when the air flow is discharged by an output pipeline of the turbine, and removing the air flow by a spraying unit when the air flow is discharged, so as to avoid air pollution; the outdoor fresh air is subjected to steam-gas heat recovery heat exchange through the turbine, the dry air fed into the gas hood is heated, and the dry air is heated through the heat exchanger, so that the heat is recovered to the maximum extent, the steam consumption is saved, the energy utilization rate is improved, the resource waste is avoided, the paper wool is sprayed and removed through the spraying assembly and then is discharged into the atmosphere, the energy consumption is saved, and the damage to the human body and the environmental pollution caused by the fact that the paper wool carried by the exhaust steam of the gas hood is directly discharged into the atmosphere are reduced.
Drawings
The utility model is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of a heat recovery device for a turbine according to the present utility model;
FIG. 2 is a schematic view of a tuyere structure of a heat recovery device of a turbine according to the present utility model.
Fig. 3 is an enlarged view at a in fig. 1.
In the figure: 1. a turbine heat exchange module; 101. fresh air filter; 102. a centrifugal blower; 103. a turbine; 104. a steam heater; 105. a spraying unit; 106. a pneumatic control valve; 107. a temperature control unit; 2. an in-hood air supply module; 201. a tuyere; 202. a vent; 203. an air valve; 204. a blowing pipe; 3. and (3) an air cover.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-3, a turbine heat recovery device comprises a gas hood 3, wherein the gas hood 3 is covered on a paper making machine frame, an in-hood air supply module 2 is arranged inside the gas hood 3, a turbine heat exchange module 1 is arranged outside the gas hood 3, the turbine heat exchange module 1 is connected with the in-hood air supply module 2 through a total air pipe, and the turbine heat recovery device further comprises a PLC control module, and the PLC control module is in communication connection with the turbine heat exchange module 1 and the in-hood air supply module 2.
The outdoor fresh air is heated into hot air through the turbine heat exchange module 1 and is input into the air supply module 2 in the cover to dry paper webs on the paper making machine frame, the dried hot air flows out of the air cover 3 along with the air duct and enters the turbine heat exchange module 1 to be discharged, the dried hot air also has certain heat, the outdoor fresh air entering the turbine heat exchange module 1 is heated when passing through the turbine heat exchange module 1, the residual heat of the hot air is fully utilized, and the heated hot air is discharged.
In one embodiment, the turbine heat exchange module 1 comprises a fresh air filter 101, a turbine 103 and a centrifugal blower 102, wherein the inlet end of an input pipeline of the turbine 103 is connected with the fresh air filter 101, and the outlet end of the input pipeline of the turbine 103 is connected with the input end of the centrifugal blower 102; in order to prevent the outdoor fresh air from directly entering the turbine 103 for heating and then being conveyed into the air hood 3 for polluting paper webs, the fresh air filter 101 is arranged at the inlet end of the input pipeline of the turbine 103 for filtering and purifying the outdoor fresh air, so that the paper webs are prevented from being polluted by the impurity doped with the hot air.
The turbine 103 is internally provided with a heat exchange pipeline, the heat exchange pipeline comprises an input pipeline and an output pipeline, external cold air flows enter the air hood 3 through the input pipeline, hot air flows in the air hood 3 are discharged through the output pipeline, the cold air flows are heated by the hot air flows in the process that the cold air flows and the hot air flows flow through the heat exchange pipeline in the turbine 103, the cold air flows absorb heat of the dried paper web carried by the hot air flows, energy is fully utilized, and resource waste is avoided.
In one embodiment, the output of the input conduit from the turbine 103 is connected to the input of the centrifugal blower 102, and the power for the air flow delivery is provided by the centrifugal blower 102.
In order to avoid that the residual heat of the hot air after drying the paper web is insufficient to heat the outdoor cold air entering the turbine 103 to a required temperature, a steam heater 104 is arranged at the output end of the centrifugal blower 102, and the input end and the output end of the steam heater 104 are in communication connection with a temperature control unit 107; the temperature control unit 107 detects the temperature of the air flow output from the centrifugal blower 102, and if the temperature does not reach the temperature of the dried paper web, the temperature control unit 107 controls the steam heater 104 to heat the air flow flowing through, and the temperature control unit 107 detects whether the temperature of the air flow output from the output end of the steam heater 104 reaches the temperature required for drying the paper web;
the steam heater 104 is also connected with a pneumatic regulating valve 106 for regulating the flow of steam into the steam heater 104 for heat exchange with the air flow of the dried web, the pneumatic regulating valve 106 being in communication with a temperature control unit 107.
The in-hood air supply module 2 is arranged in the air hood 3 and comprises a plurality of air blowing pipes 204 and a plurality of air nozzles 201, wherein the input ends of the air blowing pipes 204 are connected with the main air pipe as branch pipes, the output ends of the air blowing pipes 204 are connected with the air nozzles 201, an air valve 203 is arranged on the air blowing pipes 204, the air valve 203 is in communication connection with the PLC control module, and the air flow of the air blowing pipes 204 is controlled through the air valve 203;
in order to make the air flow blown out from the air nozzle 201 more uniform, a plurality of strip-shaped air vents 202 are formed in the air nozzle 201, and the air vents 202 are arranged in parallel, so that the air flow flows more uniformly and the transverse temperature difference is small according to the fluid dynamics principle.
Because the air current in-process of drying the paper web can carry a large amount of paper wool, if directly discharge after the hot air flow entering turbine 103 heat transfer after drying, can discharge the paper wool together into the air, a large amount of paper wool can pollute the air, so spray unit 105 is installed at the exit end of turbine 103 output pipeline, spray unit 105 and PLC control module communication connection, collect the processing because of gravity whereabouts after wetting the paper wool through spraying, avoided the direct discharge polluted air of paper wool.
In one embodiment, the spraying unit 105 comprises a first spray head combined with a second spray head group, wherein the first spray head group is arranged at regular time, and the spraying of the first spray head group is controlled at regular time by the PLC control module for fire control cleaning; the second nozzle group continuously sprays, paper wool is removed, and water containing the paper wool after spraying can be pumped into the second nozzle group again for repeated spraying after filtering treatment.
The utility model relates to a working principle of a turbine heat recovery device, which comprises the following steps:
the outdoor fresh air is filtered and purified by the fresh air filter 101 of the turbine heat exchange module 1 and then enters the turbine 103 to be heated, and then is conveyed to the air hood 3 through the centrifugal blower 102 to dry the paper web;
the outdoor fresh air is subjected to steam-air heat recovery heat exchange through the turbine 103, the dry air sent into the air hood 3 is heated, the dry air is heated through the heat exchanger, the heat is recovered to the greatest extent, the steam consumption is saved, the energy utilization rate is improved, the resource waste is avoided, the paper wool is sprayed and removed through the spraying assembly and then is discharged into the atmosphere, the energy consumption is saved, and the damage to the human body and the environmental pollution caused by the fact that the paper wool carried by the steam exhaust of the air hood 3 is directly discharged into the atmosphere are reduced.
While certain embodiments of the present utility model have been described in detail, this disclosure is only for the purpose of illustrating preferred embodiments of the utility model and is not to be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.
Claims (6)
1. The utility model provides a turbine heat recovery device, its characterized in that, including cover locate air hood, turbine heat transfer module, in-hood air supply module and the PLC control module of paper machine frame, turbine heat transfer module set up in the air hood outside, in-hood air supply module set up in inside the air hood, turbine heat transfer module with in-hood air supply module passes through the total tuber pipe and connects, turbine heat transfer module with in-hood air supply module with PLC control module communication connection.
2. The turbine heat recovery device according to claim 1, wherein the turbine heat exchange module comprises a fresh air filter, a turbine and a centrifugal blower, the fresh air filter is arranged at an inlet end of the turbine input pipeline, and the centrifugal blower is connected to an outlet end of the turbine input pipeline; and the inlet end of the turbine output pipeline is connected with the in-cover air supply module.
3. The turbine heat recovery device according to claim 2, wherein a spraying unit is arranged at the outlet end of the turbine output pipeline, and the spraying unit is in communication connection with the PLC control module.
4. The turbine heat recovery device according to claim 2, wherein the PLC control module comprises a temperature control unit, and the turbine heat exchange module further comprises a steam heater; the steam heater is connected to the output end of the centrifugal blower, and the temperature control unit is in communication connection with the steam heater.
5. The heat recovery device of a turbine according to claim 1, wherein the in-hood air supply module comprises a plurality of blowing pipes and a plurality of air nozzles, the input ends of the blowing pipes are connected with the main air pipe, the output ends of the blowing pipes are connected with the air nozzles, air valves are arranged on the blowing pipes, and the air valves are in communication connection with the PLC control module.
6. The heat recovery device of claim 5, wherein the tuyere is provided with a plurality of elongated ventilation openings, and a plurality of the ventilation openings are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321694687.4U CN219972803U (en) | 2023-06-30 | 2023-06-30 | Turbine heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321694687.4U CN219972803U (en) | 2023-06-30 | 2023-06-30 | Turbine heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219972803U true CN219972803U (en) | 2023-11-07 |
Family
ID=88591432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321694687.4U Active CN219972803U (en) | 2023-06-30 | 2023-06-30 | Turbine heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219972803U (en) |
-
2023
- 2023-06-30 CN CN202321694687.4U patent/CN219972803U/en active Active
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