CN215176511U - Overlapping type efficient drying system - Google Patents
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- CN215176511U CN215176511U CN202121462688.7U CN202121462688U CN215176511U CN 215176511 U CN215176511 U CN 215176511U CN 202121462688 U CN202121462688 U CN 202121462688U CN 215176511 U CN215176511 U CN 215176511U
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Abstract
The utility model relates to a high-efficient drying system of cascade formula relates to stoving dehumidification equipment technical field, including providing heating device, the one-level drying device and the second grade drying device of the intercommunication of establishing ties each other of heat source, one-level drying device's one-level air intake and heating device's heating device air outlet intercommunication, one-level drying device's one-level return air inlet and heating device's heating device air intake intercommunication, one-level drying device's one-level cooling air outlet and second grade drying device's second grade air intake intercommunication, second grade drying device's second grade return air inlet and one-level drying device's one-level cooling air import intercommunication for solve the technical problem that the energy utilization rate that drying dehumidification device among the prior art exists is low, the wasting of resources and equipment cost is high.
Description
Technical Field
The utility model relates to a high-efficient drying system of cascade relates to drying and dehumidifying equipment technical field.
Background
In the conventional steam/hot air heating and drying process, hot air enters a drying chamber for primary heat exchange, and then warm and humid hot air is discharged out of the chamber, so that the energy utilization rate is low, and simultaneously, waste gas is discharged, and secondary pollution is easily caused.
A patent of a heat balance type modularized heat pump and steam dual-purpose drying and dehumidifying device owned by the company (patent number: ZL 202020306426.0) adopts a multi-stage heat pump drying system, and is used for stepped drying in stages, cooling and dehumidifying step by step, and heat energy is recovered by a heat pump, so that energy recycling is realized, and energy is saved by about 50% compared with the conventional steam/hot air heating and drying. Although the energy-saving drying device realizes technical breakthrough, a heat pump unit and a circulating fan of the device need to consume a certain amount of electric energy, and input energy needs to be distributed according to the energy conservation principle, so that devices such as a cooling tower need to be configured, waste of heat energy resources is caused, and equipment cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses not enough to prior art exists provides a high-efficient drying system of overlapping formula for solve the technical problem that energy utilization rate is low, the wasting of resources and equipment cost are high that drying and dehumidifying device among the prior art exists.
The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a high-efficient drying system of cascade, is including the heating device who provides the heat source, the one-level drying device and the second grade drying device of mutual series connection intercommunication, the one-level air intake of one-level drying device and heating device's heating device air outlet intercommunication, the one-level return air inlet of one-level drying device and heating device's heating device air intake intercommunication, the one-level cooling air export of one-level drying device and second grade drying device's second grade air intake intercommunication, second grade drying device's second grade return air inlet and one-level drying device's one-level cooling air import intercommunication.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, a first-stage external circulation fan is installed at a first-stage air inlet of the first-stage drying device, a plurality of drying mesh belts are arranged on the section of a first-stage drying chamber between an air outlet of the first-stage external circulation fan and an air inlet of a first-stage heat exchange channel I of the first-stage heat exchanger, a first-stage air return inlet of the first-stage heat exchange channel I of the first-stage heat exchanger is communicated with an air inlet of a heating device of the heating device through a pipeline, a first-stage cooling air inlet of a second-stage heat exchange channel II of the first-stage drying device is communicated with a second-stage air return inlet of the second-stage drying device, and a first-stage cooling air outlet of the heat exchange channel II of the first-stage drying device is communicated with a second-stage air inlet of the second-stage drying device.
Further, a secondary external circulating fan is installed at a secondary air inlet of the secondary drying device, a plurality of drying mesh belts are arranged on the section of the secondary drying chamber between an air outlet of the secondary external circulating fan and an air inlet of a first heat exchange channel of the secondary heat exchanger, a secondary cooling air inlet of a second heat exchange channel of the secondary drying device is communicated with the cooling device, and a secondary cooling air outlet of the second heat exchange channel of the secondary drying device is communicated with the atmosphere.
Further, a primary internal circulation fan and a secondary internal circulation fan are respectively installed on the primary drying chamber of the primary drying device and the secondary drying chamber of the secondary drying device, the air inlet of the primary internal circulation fan is communicated with the air outlet of the primary drying chamber, the air outlet of the primary internal circulation fan is communicated with the air inlet of the secondary drying chamber, the air inlet of the secondary internal circulation fan is communicated with the air outlet of the secondary drying chamber, and the air outlet of the secondary internal circulation fan is communicated with the air inlet of the secondary drying chamber.
Furthermore, a first water receiving tray and a second water receiving tray are respectively arranged at air inlets of the first heat exchange channels of the first heat exchanger and the second heat exchanger.
Further, the heating device adopts steam or hot air for heating.
Furthermore, the cooling device adopts external cold air or cooling water for cooling.
The utility model has the advantages that: by adopting two sets of drying units, including a high-temperature unit taking an external heat source as drying energy and a low-temperature unit further cooling and dehumidifying the high-temperature unit to obtain the energy, compared with the independent operation of the two drying units, the energy is saved by at least 50%, and simultaneously, the use quantity of waste heat discharge and cooling devices is reduced by 50%, thereby overcoming the defects of low energy utilization rate, large waste gas discharge amount and easy generation of secondary pollution of the drying equipment in the prior art, and simultaneously having the advantages of great energy conservation and cost reduction.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, 1, a heating device, 2, a primary drying device, 3, a secondary drying device, 4, a primary air inlet pipeline, 5, a primary air return pipeline, 6, a secondary air inlet pipeline, 7, a secondary air return pipeline, 8, a heating device air outlet, 9, a heating device air inlet, 10, a primary air inlet, 11, a primary air return inlet, 12, a primary cooling air inlet, 13, a primary cooling air outlet, 14, a secondary air inlet, 15, a secondary air return inlet, 16, a secondary cooling air inlet, 17, a secondary cooling air outlet, 18, a primary heat exchanger, 19, a primary water receiving disc, 20, a secondary heat exchanger, 21, a secondary water receiving disc, 22, a primary external circulating fan, 23, a primary internal circulating fan, 24, a secondary external circulating fan, 25, a secondary internal circulating fan, 26, a primary lower air duct, 27, a primary drying chamber, 28, a primary upper air duct, 29, a secondary lower air duct, 30. a secondary drying chamber 31, a secondary air supply channel 32, and a drying mesh belt.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Referring to the attached figure 1, the cascade type efficient drying system comprises a heating device 1 providing a heat source, a primary drying device 2 and a secondary drying device 3 which are connected in series, wherein the heating device 1 is heated by steam or hot air, a primary air inlet 10 of the primary drying device 2 is communicated with a heating device air outlet 8 of the heating device 1 through a primary air inlet pipe 4, a primary air return opening 11 of the primary drying device 2 is communicated with a heating device air inlet 9 of the heating device 1 through a primary air return pipeline 5, a primary cooling air outlet 13 of the primary drying device 2 is communicated with a secondary air inlet 14 of the secondary drying device 3 through a secondary air inlet pipeline 6, and a secondary air return opening 15 of the secondary drying device 3 is communicated with a primary cooling air inlet 12 of the primary drying device 2 through a secondary air return pipeline 7.
A primary external circulation fan 22 is arranged at the primary air inlet 10 of the primary drying device 2, and specifically, the primary air inlet 10 is arranged on a primary lower air duct 26, the primary lower air duct 26 is communicated with the air inlet of the primary external circulating fan 22, a plurality of drying mesh belts 32 for placing the dried materials are arranged on the section of the primary drying chamber 27 between the air outlet of the primary external circulation fan 22 and the air inlet of the first heat exchange channel of the primary heat exchanger 18, a primary air return opening 11 of a first heat exchange channel of the primary heat exchanger 18 is communicated with a heating device air inlet 9 of the heating device 1 through a primary air return pipeline 5, a primary cooling air inlet 12 of a heat exchange channel II of the primary drying device 2 is communicated with a secondary air return inlet 15 of the secondary drying device 3 through a secondary air return pipeline 7, a primary cooling air outlet 13 of a heat exchange channel of the primary drying device 2 is communicated with a secondary air inlet 14 of the secondary drying device 3 through a secondary air inlet pipeline 6.
A secondary external circulating fan 24 is installed at a secondary air inlet 14 of the secondary drying device 3, specifically, the secondary air inlet 14 is arranged on a secondary lower air duct 29, the secondary lower air duct 29 is communicated with an air inlet of the secondary external circulating fan 24, a plurality of drying mesh belts 32 used for placing materials dried by the primary drying device 2 are arranged on the section of a secondary drying chamber 30 between an air outlet of the secondary external circulating fan 24 and an air inlet of a first heat exchange channel of the secondary heat exchanger 20, a secondary cooling air inlet 16 of a second heat exchange channel of the secondary drying device 3 is communicated with a cooling device, a secondary cooling air outlet 17 of a second heat exchange channel of the secondary drying device 3 is communicated with the atmosphere, and the cooling device adopts external cold air or cooling water for cooling.
The air dryer is characterized in that a primary internal circulation fan 23 and a secondary internal circulation fan 25 are respectively installed on the side walls of a primary drying chamber 27 of the primary drying device 2 and a secondary drying chamber 30 of the secondary drying device 3, an air inlet of the primary internal circulation fan 23 is communicated with an air outlet of the primary drying chamber 27, an air outlet of the primary internal circulation fan 23 is communicated with an air inlet of the primary drying chamber 27 through a primary air supply duct 28, an air inlet of the secondary internal circulation fan 25 is communicated with an air outlet of the secondary drying chamber 30, and an air outlet of the secondary internal circulation fan 25 is communicated with an air inlet of the secondary drying chamber 30 through a secondary air supply duct 31.
And a first water receiving tray 19 and a second water receiving tray 21 are respectively arranged at the air inlets of the first heat exchange channels of the first heat exchanger 18 and the second heat exchanger 20.
When the drying system is used for drying materials, the materials are placed on a drying mesh belt 32 of a primary drying device 2, hot air enters a primary drying chamber 27 from a heating device 1 through a primary lower air duct 26 and a primary external circulating fan 22, penetrates through the drying mesh belt 32, is cooled and dehumidified through a primary heat exchanger 18, and then flows back to the heating device 1 through a primary air return opening 11 and a primary air return pipeline 5, meanwhile, a primary cooling air inlet 12 of another heat exchange channel of the primary heat exchanger 18 is communicated with a secondary air return opening 15 of a secondary drying device 3 to introduce cooling air, meanwhile, a primary cooling air outlet 13 of the heat exchange channel is communicated with a secondary air inlet 14 of the secondary drying device 3, the secondary drying device 3 recovers the waste heat of the primary drying device 2 as drying energy to further dry the materials, the energy utilization rate is improved, and the equipment cost and the energy consumption are reduced at the same time, and the heating device 1 can also utilize high-temperature waste gas and waste steam of a user as heat sources of the primary drying device 2, so that waste heat recycling is realized, energy is saved, efficiency is high, and more economic values and social benefits are created.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. The utility model provides a high-efficient drying system of cascade which characterized in that: the drying device comprises a heating device for providing a heat source, a first-stage drying device and a second-stage drying device which are mutually connected in series and communicated, wherein a first-stage air inlet of the first-stage drying device is communicated with an air outlet of the heating device, a first-stage air return inlet of the first-stage drying device is communicated with an air inlet of the heating device, a first-stage cooling air outlet of the first-stage drying device is communicated with a second-stage air inlet of the second-stage drying device, and a second-stage air return inlet of the second-stage drying device is communicated with a first-stage cooling air inlet of the first-stage drying device.
2. The system of claim 1, wherein the drying system comprises: the one-level drying device is characterized in that a one-level external circulation fan is installed at a one-level air inlet of the one-level drying device, a plurality of drying mesh belts are arranged on the cross section of a one-level drying chamber between an air outlet of the one-level external circulation fan and an air inlet of a first heat exchange channel of the one-level heat exchanger, a one-level air return inlet of a first heat exchange channel of the one-level heat exchanger is communicated with a heating device air inlet of a heating device through a pipeline, a one-level cooling air inlet of a second heat exchange channel of the one-level drying device is communicated with a second-level air return inlet of a second drying device, and a one-level cooling air outlet of a heat exchange channel of the one-level drying device is communicated with a second-level air inlet of the second drying device.
3. The system of claim 2, wherein the drying system comprises: and a secondary air inlet of the secondary drying device is provided with a secondary external circulating fan, a plurality of drying mesh belts are arranged on the section of the secondary drying chamber between an air outlet of the secondary external circulating fan and an air inlet of a first heat exchange channel of the secondary heat exchanger, a secondary cooling air inlet of a second heat exchange channel of the secondary drying device is communicated with a cooling device, and a secondary cooling air outlet of a second heat exchange channel of the secondary drying device is communicated with the atmosphere.
4. The system of claim 3, wherein the drying system comprises: the air outlet of the first-stage internal circulation fan is communicated with the air inlet of the second-stage drying chamber, the air inlet of the second-stage internal circulation fan is communicated with the air outlet of the second-stage drying chamber, and the air outlet of the second-stage internal circulation fan is communicated with the air inlet of the second-stage drying chamber.
5. The system of claim 4, wherein the drying system comprises: and a first water receiving tray and a second water receiving tray are respectively arranged at the air inlets of the first heat exchange channels of the first heat exchanger and the second heat exchanger.
6. The system of claim 1, wherein the drying system comprises: the heating device adopts steam or hot air for heating.
7. The system of claim 3, wherein the drying system comprises: the cooling device adopts external cold air or cooling water for cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121462688.7U CN215176511U (en) | 2021-06-29 | 2021-06-29 | Overlapping type efficient drying system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121462688.7U CN215176511U (en) | 2021-06-29 | 2021-06-29 | Overlapping type efficient drying system |
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| CN215176511U true CN215176511U (en) | 2021-12-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115435582A (en) * | 2022-08-31 | 2022-12-06 | 青岛海信日立空调系统有限公司 | Multistage waste heat recovery drying system and control method thereof |
| CN115900317A (en) * | 2022-12-27 | 2023-04-04 | 中冶焦耐(大连)工程技术有限公司 | Direct drying system and method for carrier gas closed cycle lignite |
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2021
- 2021-06-29 CN CN202121462688.7U patent/CN215176511U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115435582A (en) * | 2022-08-31 | 2022-12-06 | 青岛海信日立空调系统有限公司 | Multistage waste heat recovery drying system and control method thereof |
| CN115435582B (en) * | 2022-08-31 | 2023-09-05 | 青岛海信日立空调系统有限公司 | Multistage waste heat recovery drying system and control method thereof |
| CN115900317A (en) * | 2022-12-27 | 2023-04-04 | 中冶焦耐(大连)工程技术有限公司 | Direct drying system and method for carrier gas closed cycle lignite |
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