CN-122015205-A - Four-zone rotary wheel dehumidification system for coupling heat pump waste heat recovery

CN122015205ACN 122015205 ACN122015205 ACN 122015205ACN-122015205-A

Abstract

The invention relates to the technical field of rotary dehumidification, and particularly discloses a four-zone rotary dehumidification system coupled with heat pump waste heat recovery, which comprises a deep dehumidification unit, a waste heat recovery unit, an air flue and a refrigerant pipeline, wherein the deep dehumidification unit is used for sequentially carrying out continuous circulation operation of adsorption, regeneration, deep desorption and precooling on inlet air until the humidity of discharged air reaches a use standard, the waste heat recovery unit is communicated with the deep dehumidification unit and is used for recovering low-grade heat energy of the deep dehumidification unit, then heating and lifting the low-grade heat energy into high-grade heat energy, the high-grade heat energy is used for heating regenerated air in the deep dehumidification unit, and the air flue is communicated with the deep dehumidification unit and the waste heat recovery unit and is used for carrying out air transportation between the waste heat recovery units and providing a transmission channel for heat energy transfer between the deep dehumidification unit and the waste heat recovery unit. The dehumidification system realizes the synergistic effect of deep dehumidification and energy-saving operation through the technical scheme of four-region structural rotating wheel design, heat pump waste heat recovery unit integration and multi-airflow cooperative circulation.

Inventors

HUANG ZONGHUA
WANG CENGCENG
Huo Xingcheng
LIAO WEIQIANG
WANG PENGXIANG
TAN TINGDONG
Bu Jianhan
ZHANG YU
CHENG XIAOHONG
ZHOU FENG

Assignees

中建三局集团有限公司
中建三局第一建设工程有限责任公司

Dates

Publication Date: 20260512
Application Date: 20260403

Claims (8)

1. A four-zone rotary dehumidification system coupled with heat pump waste heat recovery comprises The deep dehumidification unit is used for sequentially carrying out continuous circulation operation of adsorption, regeneration, deep desorption and precooling on the entering air until the humidity of the discharged air reaches the use standard; the waste heat recovery unit is communicated with the deep dehumidification unit and is used for recovering low-grade heat energy of the deep dehumidification unit and then heating the low-grade heat energy to be improved into high-grade heat energy, and the high-grade heat energy is used for heating regenerated air in the deep dehumidification unit; the air duct is communicated with the refrigerant pipeline, the deep dehumidification unit and the waste heat recovery unit, is used for carrying out air transportation between the waste heat recovery units and provides a transmission channel for heat energy transfer between the deep dehumidification unit and the waste heat recovery unit.
2. The four-zone rotary dehumidifier system coupled with heat pump waste heat recovery according to claim 1, wherein the deep dehumidification unit comprises a rotary dehumidifier, the rotary dehumidifier is made of high-performance moisture absorption materials, the rotary dehumidifier is sequentially arranged into a treatment zone, a regeneration zone, a heating zone and a pre-cooling zone along the circumferential direction of the rotary dehumidifier, the treatment zone is used for absorbing water vapor in air flowing into the treatment zone, the regeneration zone is used for heating the rotary dehumidifier for the first time and discharging the water vapor in the rotary dehumidifier, the heating zone is used for heating the rotary dehumidifier for the second time and removing the water vapor which cannot be discharged after the first heating of the rotary dehumidifier, the temperature of the regeneration zone is lower than that of the heating zone, and the pre-cooling zone is used for cooling the area heated by the rotary dehumidifier.
3. The four-zone rotary dehumidification system for coupling heat pump waste heat recovery as claimed in claim 1, wherein the deep dehumidification unit is arranged beside a closed space requiring dehumidification of indoor air, and the air dehumidified by the deep dehumidification unit is outdoor fresh air or indoor return air of the closed space.
4. A four-zone rotary dehumidification system coupled with heat pump waste heat recovery as set forth in claim 2, wherein the air duct and the refrigerant pipeline comprise a processing fan and a processing pipeline, wherein the processing fan and the processing pipeline are used for conveying outdoor fresh air or indoor return air to the processing zone for dehumidification and drying, the dried air is divided into at least two paths, one path of air is processed to a target temperature used in a closed space and then is sent to the closed space, the other path of air is conveyed to a precooling zone of a rotary wheel and exchanges heat with a rotary wheel sector which is turned out from a high-temperature heating zone to cool the high-temperature rotary wheel sector, and the path of air is preheated in the heat exchange and then is conveyed to the waste heat recovery unit.
5. The four-zone rotary dehumidification system coupled with heat pump waste heat recovery as set forth in claim 4, wherein the waste heat recovery unit comprises a condenser, a regeneration fan, an evaporator and a heat energy conveying pipeline, wherein the heat energy conveying pipeline is communicated with the condenser, the regeneration fan, the evaporator, the heating zone and the regeneration zone and forms a circulation pipeline, the condenser is used for heating outdoor fresh air and/or air flowing out of the precooling zone and then conveying the heated air to the heating zone, the evaporator is used for receiving air flowing out of the regeneration zone or the regeneration zone and the heating zone in a mixing mode and performing cooling and dehumidification treatment, and the regeneration fan is used for discharging the air processed by the evaporator outdoor along the heat energy conveying pipeline.
6. The four-zone rotary dehumidifier system coupled to heat pump waste heat recovery of claim 5, further comprising a heater for auxiliary heating of air exiting the condenser, wherein said heater is mounted on the thermal energy transfer conduit and is positioned between the condenser and the rotary wheel.
7. The four-zone rotary dehumidification system coupled with heat pump waste heat recovery according to claim 6, wherein the waste heat absorbed by the evaporator in the cooling and dehumidification process is transferred to the condenser for release through the heat pump cycle for heating the regeneration air.
8. A four-zone rotary dehumidifier system coupled to heat pump waste heat recovery as claimed in claim 3, wherein the heat recovered by the waste heat recovery unit further comprises waste heat from compressor exhaust, solar energy collected by the solar heat collector and industrial waste heat generated by other production equipment in the field, and the heat recovered by the waste heat recovery unit is used for heating air flowing into the heating zone.

Description

Four-zone rotary wheel dehumidification system for coupling heat pump waste heat recovery Technical Field The invention relates to the technical field of rotary dehumidification, in particular to a four-zone rotary dehumidification system for coupling heat pump waste heat recovery. Background The conventional runner dehumidification system used in the industry and the storage field (such as a refrigeration house) mainly adopts a single electric heating mode to provide heat energy for runner regeneration, has the technical defect of high energy consumption, greatly increases the operation cost, simultaneously has the advantages that the conventional runner is designed in two or three areas, only basic adsorption and regeneration can be completed, the temperature of the regenerated runner sector is high, the subsequent adsorption effect is easily affected, part of desorption water cannot be effectively removed, the dehumidification precision is insufficient, the regeneration efficiency of the runner is low, the absolute humidity of outlet air is difficult to control to be extremely low, in addition, the conventional system has no effective waste heat recovery design, low-grade heat energy in the system is directly discharged, the energy utilization efficiency is low, part of the dehumidification system and other on-site equipment have no heat energy coupling design, the on-site low-cost heat source cannot be fully utilized, and the energy waste is caused. In the prior art, although the basic air dehumidifying function can be realized, the short plates in the aspects of energy consumption control, dehumidifying precision and comprehensive energy utilization can not meet the scene requirements of high-precision dehumidifying and low-energy running of a refrigeration house and the like, and the high-energy running mode is also contrary to the industry development trend of energy conservation and consumption reduction. Therefore, the application provides a four-zone rotary dehumidification system coupled with heat pump waste heat recovery, which can improve the energy efficiency and reliability of the system so as to solve the technical problems. Disclosure of Invention The invention mainly aims to provide a four-zone rotating wheel dehumidification system for coupling heat pump waste heat recovery, which aims at the technical problems of high energy consumption, low dehumidification precision and poor energy utilization efficiency in the prior art, and realizes the synergistic effect of deep dehumidification and energy-saving operation by adopting the technical scheme of four-zone rotating wheel design, heat pump waste heat recovery unit integration and multi-airflow cooperative circulation. The invention adopts the following technical scheme to solve the technical problems: the invention provides a four-zone rotating wheel dehumidification system for coupling heat pump waste heat recovery, which comprises The deep dehumidification unit is used for sequentially carrying out continuous circulation operation of adsorption, regeneration, deep desorption and precooling on the entering air until the humidity of the discharged air reaches the use standard; the waste heat recovery unit is communicated with the deep dehumidification unit and is used for recovering low-grade heat energy of the deep dehumidification unit and then heating the low-grade heat energy to be improved into high-grade heat energy, and the high-grade heat energy is used for heating regenerated air in the deep dehumidification unit; the air duct is communicated with the refrigerant pipeline, the deep dehumidification unit and the waste heat recovery unit, is used for carrying out air transportation between the waste heat recovery units and provides a transmission channel for heat energy transfer between the deep dehumidification unit and the waste heat recovery unit. The deep dehumidification unit comprises a rotary dehumidifier, wherein the rotary dehumidifier is made of high-performance moisture absorption materials, the rotary dehumidifier is sequentially provided with a treatment area, a regeneration area, a heating area and a pre-cooling area along the circumferential direction of the rotary dehumidifier, the treatment area is used for absorbing water vapor in air flowing into the treatment area, the regeneration area is used for heating the rotary dehumidifier for the first time and discharging the water vapor in the rotary dehumidifier, the heating area is used for heating the rotary dehumidifier for the second time and removing the water vapor which cannot be discharged after the first time heating of the rotary dehumidifier, and the pre-cooling area is used for cooling the area heated by the rotary dehumidifier. Preferably, the deep dehumidification unit is arranged beside a closed space where indoor air needs to be dehumidified, and the air dehumidified by the deep dehumidification unit is outdoor fresh air or indoor return air of the clo