CN-121977253-A - Energy recovery method and energy recovery device of rotary dehumidifier

CN121977253ACN 121977253 ACN121977253 ACN 121977253ACN-121977253-A

Abstract

The invention discloses an energy recovery method and an energy recovery device of a rotary dehumidifier, wherein the energy recovery method comprises the following steps of S1, heating initial regenerated wind to form high-temperature dry air, forming high-temperature high-humidity air after the high-temperature dry air flows through a regeneration zone of the rotary dehumidifier, S2, exchanging heat of the high-temperature high-humidity air in a heat exchange zone to form low-temperature high-humidity air, S3, heating normal-temperature regenerated wind through the heat exchange zone and then entering the regeneration zone of the rotary dehumidifier, and repeatedly executing S2, S4, acquiring a first temperature of the regenerated wind before the regenerated wind passes through the heat exchange zone and a second temperature of the regenerated wind after the regenerated wind passes through the heat exchange zone, judging that the heat exchange is invalid when the temperature difference between the first temperature and the second temperature is lower than a preset temperature difference, and stopping heating of a heating system of the rotary dehumidifier. The invention can ensure that the heat can be fully recovered and reduce the energy waste.

Inventors

HUANG MING
ZHOU WEIXIONG
SU BIN

Assignees

江苏嘉盛环境设备制造有限公司

Dates

Publication Date: 20260505
Application Date: 20260104

Claims (10)

1. The energy recovery method of the rotary dehumidifier is characterized by comprising the following steps of: S1, heating initial regenerated wind to form high-temperature dry air, and forming high-temperature high-humidity air after the high-temperature dry air flows through a regeneration zone of a rotating wheel; S2, heat exchange is carried out on the high-temperature high-humidity air in a heat exchange area, and low-temperature high-humidity air is formed; s3, heating the normal-temperature regenerated wind through a heat exchange area, then entering a regeneration area of the rotating wheel, and repeatedly executing S2; s4, acquiring a first temperature before the regenerated wind passes through the heat exchange area and a second temperature after the regenerated wind passes through the heat exchange area; when the temperature difference between the first temperature and the second temperature is lower than the preset temperature difference, judging that the heat exchange is invalid, and stopping heating the heating system of the rotary dehumidifier.
2. The method for recovering energy of a rotary dehumidifier according to claim 1, further comprising S5, obtaining a first wind pressure before the regenerated wind passes through the heat exchange area and a second wind pressure after the regenerated wind passes through the heat exchange area; when the pressure difference between the first air pressure and the second air pressure is higher than the preset pressure difference, judging that the heat exchange is invalid, and stopping heating the heating system of the rotary dehumidifier.
3. The method for recovering energy of a rotary dehumidifier according to any one of claims 1-2, further comprising S6, obtaining a third temperature of the high-temperature and high-humidity air before entering the heat exchange area; And when the third temperature is higher than the preset temperature, judging that the rotating wheel is in fault, and stopping heating by the heating system of the rotating wheel dehumidifier.
4. The method for recovering energy of a rotary dehumidifier according to claim 1, further comprising S7, sending out an early warning when the system judges that heat exchange is failed or the rotary dehumidifier fails.
5. An energy recovery device applied to the energy recovery method of the rotary dehumidifier of any one of claims 1-4, which is characterized by comprising a heat transmitter, a regeneration air inlet channel and a regeneration air outlet channel; The heat transmitter is provided with a cold air inlet, a hot air outlet, a cold air outlet and a hot air inlet; the regeneration air inlet channel is communicated with the cold air inlet and the hot air outlet; the regeneration air outlet channel is sequentially communicated with the hot air outlet, the hot air inlet and the cold air outlet; the regeneration air inlet channel is provided with a first temperature measuring piece and a second temperature measuring piece; the first temperature measuring piece is located at the cold air inlet, and the second temperature measuring piece is located at the hot air outlet.
6. The energy recovery device of claim 5, wherein the hot air outlet communicates with the regeneration air outlet via a transition passage; the rotary dehumidifier comprises a rotary wheel and a regenerated wind heating box; a regeneration heating module is arranged in the regeneration wind heating box; The hot air outlet is communicated with the transition channel through the regenerated air heating box, and an air outlet of the transition channel is arranged opposite to the regeneration zone of the rotating wheel.
7. The energy recovery device of claim 6, wherein the air outlet end of the regeneration air outlet channel is provided with a third temperature measurement member.
8. The energy recovery device according to claim 5, wherein the regeneration air intake passage is provided with a first differential pressure gauge and a second differential pressure gauge; The first differential pressure gauge is positioned at the cold air inlet, and the second differential pressure gauge is positioned at the hot air outlet.
9. The energy recovery device of claim 5, wherein the heat transfer device comprises a heat transfer box, a coupler, and a plurality of ductwork; the heat transfer box is internally provided with a first channel, the air pipe penetrates through the heat transfer box along the thickness direction of the heat transfer box, and the air pipe penetrates through the first channel; The air pipe is internally provided with a second channel, and the first channel and the second channel are mutually perpendicular; The adjacent air pipes are connected in a sealing way through the coupler.
10. The energy recovery device of claim 5, wherein the hot air inlet and the cold air outlet are disposed on the same side of the heat transfer box.

Description

Energy recovery method and energy recovery device of rotary dehumidifier Technical Field The invention relates to the technical field of heat recovery of rotary dehumidifier, in particular to an energy recovery method and an energy recovery device of the rotary dehumidifier. Background A regeneration heating box is provided in the conventional rotary dehumidifier for heating the regeneration wind. However, in the traditional rotary dehumidifier, the high-temperature and high-humidity air formed after the regeneration wind passes through the regeneration zone of the rotary wheel can be directly discharged outdoors, so that energy waste is directly caused, and the temperature and humidity of the external environment can be obviously increased. In order to solve the problems, in the prior art, a heat exchange device is additionally arranged on an air outlet path of the regenerated air so as to recycle heat of high-temperature and high-humidity air formed after the regenerated air is dehumidified. However, as the air flow continuously passes through the heat exchange equipment, pollutants in the air can be brought into the heat exchange equipment when the air flow passes through the heat exchange equipment, so that the heat exchange equipment is easy to be blocked, and heat exchange failure is caused. The prior rotary dehumidifier lacks means for performing blocking early warning and automatically closing the heating module on the heat exchange equipment, so that the rotary dehumidifier cannot work normally. Disclosure of Invention The invention aims to solve the technical problems of providing an energy recovery method and an energy recovery device of a rotary dehumidifier, and overcoming the defect that the prior art cannot perform blockage early warning and automatic control on heat exchange equipment of the rotary dehumidifier. In order to solve the technical problems, the invention adopts the following technical scheme: The energy recovery method of the rotary dehumidifier comprises the following steps: S1, heating initial regenerated wind to form high-temperature dry air, and forming high-temperature high-humidity air after the high-temperature dry air flows through a regeneration zone of a rotating wheel; S2, heat exchange is carried out on the high-temperature high-humidity air in a heat exchange area, and low-temperature high-humidity air is formed; s3, heating the normal-temperature regenerated wind through a heat exchange area, then entering a regeneration area of the rotating wheel, and repeatedly executing S2; s4, acquiring a first temperature before the regenerated wind passes through the heat exchange area and a second temperature after the regenerated wind passes through the heat exchange area; when the temperature difference between the first temperature and the second temperature is lower than the preset temperature difference, judging that the heat exchange is invalid, and stopping heating the heating system of the rotary dehumidifier. In order to solve the technical problems, the invention adopts another technical scheme that: an energy recovery device comprises a heat transmitter, a regeneration air inlet channel and a regeneration air outlet channel; The heat transmitter is provided with a cold air inlet, a hot air outlet, a cold air outlet and a hot air inlet; the regeneration air inlet channel is communicated with the cold air inlet and the hot air outlet; the regeneration air outlet channel is sequentially communicated with the hot air outlet, the hot air inlet and the cold air outlet; the regeneration air inlet channel is provided with a first temperature measuring piece and a second temperature measuring piece; the first temperature measuring piece is located at the cold air inlet, and the second temperature measuring piece is located at the hot air outlet. The method has the advantages that the blocking condition of the heat exchange area is judged by measuring the temperature difference between the inlet air temperature and the outlet air temperature of the regenerated air, when the heat exchange area is blocked more seriously, the temperature difference of the regenerated air before and after passing through the heat exchange area is smaller, so that the blocking condition of the heat exchange area can be accurately judged, and after the heat exchange area is blocked, the heating system is controlled to stop heating and give out early warning, so that personnel can be reminded to timely maintain the heat transfer device in the heat exchange area, and the heat can be fully recovered. Drawings FIG. 1 is a schematic diagram of a rotary dehumidifier according to the present invention; FIG. 2 is a schematic view of a portion of a wheel dehumidifier of the present invention; FIG. 3 is a schematic view of a heat transfer device according to the present invention; FIG. 4 is a schematic diagram of a heat transfer device according to the present invention and a partial enlarged view thereof;