Multistage heat pump drying system and method
A heat pump drying and drying chamber technology, applied in the directions of heat pump, drying chamber/container, drying gas arrangement, etc., can solve the problems of insufficient waste heat emission recovery and utilization, low system performance, uneven distribution of system energy consumption, etc., to achieve efficient utilization, improve Running performance, evenly distributed effects
Pending Publication Date: 2020-12-15
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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Problems solved by technology
For this reason, the present invention proposes a multi-stage heat pump drying system to solve the problems of low system performance of the existing heat pump drying device at low ambient temperature, insufficient waste heat emission and recycling, and uneven distribution of energy consumption of the system
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[0034] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.
[0035] Such as figure 1 and figure 2 As shown, the embodiment of the present invention provides a multi-stage heat pump drying system (abbreviated as "drying system" in the embodiment of the present invention). And based on the drying system, the embodiment of the present invention also provides a multi-stage heat pump drying method (abbreviated as "drying method" in the embodiment of the present invention).
[0036] Such as figure 1and figure 2 As shown, the drying system includes a host room 14 and several groups of drying units. Several groups of drying units share the same host room 14. Wherein, several heat pump units 1 are arranged side by side inside the main machine room 14 . Pref...
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The invention relates to the technical field of heat pump drying, in particular to a multistage heat pump drying system and method. The multistage heat pump drying system involves a main machine chamber, and a plurality of sets of drying units, wherein a plurality of heat pump units are arranged inside the main machine chamber in parallel, the plurality of sets of drying units are connected to thesame main machine chamber in parallel, an air outlet and an air return port are formed in the connecting position of each set of drying units and the main machine chamber, and the air outlet and theair return port of each set are formed in the periphery of each corresponding heat pump unit in a one-to-one correspondence mode; and each set of drying units is provided with a feeding door, internalcirculation air flow can be formed among the air return ports, the feeding doors and the air outlets inside the drying units, and external circulation air flow can be formed among the drying units, the main machine chamber and the external environment. According to the system, the plurality of drying units share the same main machine chamber, it can be guaranteed that energy consumption of the system is distributed more evenly, waste heat of the other drying units can be used for rapid compensation under the condition that waste heat of any one of the drying units is insufficient, and efficient utilization of the waste heat at the low environment temperature is achieved.
Description
technical field [0001] The invention relates to the technical field of heat pump drying, in particular to a multistage heat pump drying system and a drying method. Background technique [0002] Drying is the main energy-consuming part of industrial energy consumption, accounting for up to 15%. In the drying process, the heat pump system can recover the waste heat in the drying process, and it has the advantages of low energy consumption, high precision of temperature and humidity control, and high drying efficiency. Therefore, heat pump drying technology has significant advantages in the field of drying. [0003] At present, some heat pump drying devices usually use parallel air supply to dry materials, but it is necessary to use heat storage devices to buffer the recovery and utilization of waste heat in the drying process. In another part of the heat pump drying device, based on the partition control of belt drying, multiple heat pump drying units are partitioned to cont...
Claims
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IPC IPC(8): F26B9/06F26B21/04F26B21/08F26B21/10F26B25/06F25B30/06
CPCF25B30/06F26B9/06F26B21/002F26B21/004F26B21/04F26B21/08F26B21/10F26B25/06
Inventor 苑亚杨鲁伟董建魏娟李博金建龙
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI