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CN-122015523-A - Steam periodic condensing device and intelligent cooking equipment based on phase change energy storage

CN122015523ACN 122015523 ACN122015523 ACN 122015523ACN-122015523-A

Abstract

The application relates to a steam periodic condensing device and intelligent cooking equipment based on phase change energy storage, which comprises a control valve bank, a phase change condensing module, a spraying module and a control module, wherein the control valve bank comprises a plurality of steam channels and is used for connecting a steam input port and the corresponding phase change condensing module, the control module is used for determining at least one condensing sub-module and marking the at least one condensing sub-module as a condensing sub-module, the control valve bank is used for opening the steam channels connected with the condensing sub-module, when the condensing sub-module reaches a saturated state, the condensing sub-module is marked as a regenerating sub-module, the control valve bank is used for closing the steam channels connected with the condensing sub-module, the spraying module is used for cooling the regenerating sub-module, and when the regenerating sub-module is cooled, the condensing sub-module is marked as a standby sub-module. The working state is periodically switched through the multiple modules, so that the condensation efficiency and stability are improved, and the problem of cooling efficiency attenuation caused by temperature saturation of the single-channel heat exchanger is solved.

Inventors

  • QI YAHUI
  • FU YUANHUA

Assignees

  • 宁波方太厨具有限公司

Dates

Publication Date
20260512
Application Date
20260104

Claims (10)

  1. 1. The steam periodic condensing device based on phase change energy storage is characterized by comprising a control valve group, at least three phase change condensing modules, a spraying module and a control module; Each steam channel is respectively connected with a steam input port and the corresponding phase-change condensing module; The phase change condensing module is used for condensing steam; The spraying module is used for cooling the phase-change condensing module; the control module is connected with the control valve group and the spraying module and used for determining at least one phase-change condensation module from a standby queue, marking the phase-change condensation module as a condensation sub-module, controlling the control valve group to open the steam channel connected with the condensation sub-module, marking the condensation sub-module as a regeneration sub-module when the condensation sub-module reaches a saturated state, controlling the control valve group to close the steam channel connected with the condensation sub-module, controlling the spraying module to cool the regeneration sub-module, and marking the regeneration sub-module as a standby sub-module after the regeneration sub-module is cooled so as to be added into the standby queue.
  2. 2. The phase-change energy-storage-based vapor cycle condensing device of claim 1, wherein said phase-change condensing module comprises a honeycomb heat-conducting frame and a phase-change material layer; The phase change material layer is arranged in the interlayer of the honeycomb heat conduction frame; The honeycomb heat conduction frame comprises an aluminum plate and an oleophobic coating arranged on the surface of the aluminum plate; the phase-change condensing module further comprises a condensed water channel, a water collecting tank and an ultrasonic cleaner; the condensed water channel is used for connecting the honeycomb heat conduction frame with the water collecting tank, and the ultrasonic cleaner is arranged in the water collecting tank.
  3. 3. The phase-change energy-storage-based steam periodic condensing device according to claim 1, wherein said control module is further configured to obtain a steam input flow rate in an efficient mode; Predicting a remaining heat absorption capacity of the condensing sub-module based on the vapor input flow; And judging whether the condensing sub-module reaches a saturated state or not based on the residual heat absorption capacity.
  4. 4. The phase-change energy-storage-based vapor cycle condensing device of claim 3, further comprising at least three temperature sensors, each of said temperature sensors being disposed opposite one of said phase-change condensing modules for measuring a real-time temperature of said phase-change condensing module; the control module is connected with the temperature sensor and used for acquiring the first real-time temperature and the running time of the condensation sub-module; predicting a remaining heat sink capacity of the condensing sub-module based on the vapor input flow, comprising: and predicting the residual heat absorption capacity of the condensing sub-module based on the first real-time temperature, the steam input flow and the running time of the condensing sub-module.
  5. 5. The periodic condensing device based on phase-change energy storage according to claim 4, wherein the control module is further configured to obtain the first real-time temperature of the condensing sub-module in a normal mode, and determine whether the condensing sub-module reaches a saturated state based on a relationship between the first real-time temperature and a preset temperature threshold.
  6. 6. The phase-change energy-storage-based steam periodic condensing device according to claim 5, wherein determining whether the condensing sub-module reaches a saturated state based on the first real-time temperature and a preset temperature threshold magnitude relation comprises: If the first real-time temperature is greater than or equal to a preset temperature threshold, judging that the condensation submodule reaches a saturated state; Judging whether the first real-time temperature changes within a preset time threshold or not if the first real-time temperature is smaller than the temperature threshold, judging that the condensation sub-module reaches a saturated state if the first real-time temperature does not change within the time threshold, and judging that the condensation sub-module does not reach the saturated state if the first real-time temperature changes within the time threshold.
  7. 7. The phase-change energy-storage-based vapor cycle condensing device of claim 5, wherein said control module is further configured to switch said efficient mode to said normal mode in response to an anomaly signal triggered automatically or manually.
  8. 8. The phase-change energy-storage-based vapor periodic condensing device of claim 1, wherein said control module is further configured to obtain a second real-time temperature of said regeneration sub-module; And adjusting the flow rate of the spray water output by the spray module based on the second real-time temperature.
  9. 9. The phase-change energy-storage-based vapor cycle condensing device of claim 1, further comprising a recovery module coupled to said phase-change condensing module, said recovery module comprising a plurality of output channels; the recovery module is used for recovering the spray water cooled by the regeneration sub-module to the output channels, and each output channel is used for heating the spray water to different temperatures so as to output the spray water to different target devices.
  10. 10. An intelligent cooking apparatus characterized by comprising the phase change energy storage based vapor periodic condensing device of any one of claims 1 to 9.

Description

Steam periodic condensing device and intelligent cooking equipment based on phase change energy storage Technical Field The application relates to the technical field of intelligent electrical appliances, in particular to a steam periodic condensing device based on phase change energy storage and intelligent cooking equipment. Background The condensing device is a device for cooling and converting gaseous vapor into liquid state, and the working principle is to transfer latent heat in the vapor to a low-temperature cooling medium through a heat transfer surface, thereby realizing phase-change condensation. The process is widely applied to various fields of industry, energy, food processing, daily life and the like, and plays a key role in a steam circulation system of a power plant, a refrigerating air conditioning unit, a sea water desalination device and a steam recovery system in kitchen cooking equipment. Currently, most conventional condensing units employ a single-channel tube or plate heat exchanger structure, and a cooling medium (such as water or air) flows through a heat exchange channel in a single direction at a constant flow rate to perform indirect contact heat exchange with high-temperature steam. However, this design has revealed significant performance drawbacks in continuous operation, in that as the heat exchange process proceeds, the cooling medium absorbs heat continuously along its path, and its temperature continues to rise, gradually approaching the saturation temperature of the steam. For example, cooling water having an inlet temperature of 25 ℃ may rise to 80 ℃ or higher after a long period of operation, resulting in a significant reduction in the effective temperature difference from steam and a dramatic drop in the heat transfer driving force. Therefore, the condensation efficiency of the device can reach more than 90% at the initial stage of operation, but as the temperature of the cooling medium rises, the efficiency rapidly decays, and the later stage is even less than 50%, so that the stability and the energy efficiency performance of the system are seriously affected. Aiming at the problem of serious cooling efficiency attenuation in the related art, no effective solution is proposed at present. Disclosure of Invention In the embodiment, a steam periodic condensing device and intelligent cooking equipment based on phase change energy storage are provided to solve the problem of serious cooling efficiency attenuation in the related art. In a first aspect, in this embodiment, a vapor periodic condensing device based on phase change energy storage is provided, where the device includes a control valve group, at least three phase change condensing modules, a spraying module, and a control module; Each steam channel is respectively connected with a steam input port and the corresponding phase-change condensing module; The phase change condensing module is used for condensing steam; The spraying module is used for cooling the phase-change condensing module; the control module is connected with the control valve group and the spraying module and used for determining at least one phase-change condensation module from a standby queue, marking the phase-change condensation module as a condensation sub-module, controlling the control valve group to open the steam channel connected with the condensation sub-module, marking the condensation sub-module as a regeneration sub-module when the condensation sub-module reaches a saturated state, controlling the control valve group to close the steam channel connected with the condensation sub-module, controlling the spraying module to cool the regeneration sub-module, and marking the regeneration sub-module as a standby sub-module after the regeneration sub-module is cooled so as to be added into the standby queue. In some embodiments thereof, the phase change condensation module comprises a honeycomb heat conducting frame and a phase change material layer; The phase change material layer is arranged in the interlayer of the honeycomb heat conduction frame; The honeycomb heat conduction frame comprises an aluminum plate and an oleophobic coating arranged on the surface of the aluminum plate; the phase-change condensing module further comprises a condensed water channel, a water collecting tank and an ultrasonic cleaner; the condensed water channel is used for connecting the honeycomb heat conduction frame with the water collecting tank, and the ultrasonic cleaner is arranged in the water collecting tank. In some embodiments, the control module is further configured to obtain a steam input flow in the efficient mode; Predicting a remaining heat absorption capacity of the condensing sub-module based on the vapor input flow; And judging whether the condensing sub-module reaches a saturated state or not based on the residual heat absorption capacity. In some embodiments, the apparatus further comprises at least three temperature sensors, each of w