Regenerated air treatment device and rotating wheel dehumidification unit

Abstract

The utility model discloses a regeneration air processing device and a rotary wheel dehumidification unit, the regeneration air processing device comprises a shell and a heat recovery device arranged in the shell, a heat insulation plate is arranged in the middle of the shell, a first cavity and a second cavity are respectively formed above and below the heat insulation plate, and the first cavity and the second cavity are communicated with each other. A fresh air inlet and an air outlet are formed in the positions, located on the two sides of the first cavity, of the shell correspondingly. An exhaust air inlet and an exhaust outlet are formed in the positions, located on the two sides of the second cavity, of the shell correspondingly. A pre-dehumidification mechanism and a condensation section of a heat recovery device are arranged in the first cavity in the air inlet and outlet direction. An evaporation section of the heat recovery device is positioned in the second cavity; according to the regenerated air treatment device disclosed by the invention, the regenerated fresh air is dehumidified through the pre-dehumidification mechanism, so that the water content of the regenerated fresh air is greatly reduced, the problem that the regenerated air is easy to reach a saturated water vapor state during regeneration treatment of the rotating wheel is effectively solved, and the regeneration efficiency of the rotating wheel dehumidification unit is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rotating wheel dehumidification technical field, especially a regenerative air treatment device and a rotating wheel dehumidification unit. BACKGROUND

[0002] With the rapid development of new energy power battery and energy storage battery industry, the demand for lithium battery capacity is expanding, and more stringent requirements for lithium battery production environment are put forward, in order to ensure the high quality production of lithium battery products and the safety of product storage, the upgrading of battery products promotes the improvement of downstream equipment performance demand.

[0003] In the downstream equipment, the dehumidifier is the key equipment to protect the production environment, and its transformation is an important link to realize the performance optimization and upgrading of environmental equipment, generally, the dehumidifier after transformation must have greater dehumidification capacity to meet the demand of lower humidity environment, however, for dehumidifier manufacturers, the performance transformation of rotating wheel dehumidifier is extremely difficult, at present, dehumidifier manufacturers focus more on saving regeneration energy in the transformation of rotating wheel dehumidifier, and in the aspect of performance improvement, generally, the rotating wheel dehumidification capacity is improved by increasing steam input or adding electric heating compensation.

[0004] In many dehumidifier transformation cases in lithium battery industry, if the rotating wheel dehumidifier cannot meet the control requirements of lower humidity with the transformation and upgrading of workshop, the only way is to replace the wheel core or the whole machine; replacing the wheel core is the most cost-effective solution for dehumidifier transformation in the market to solve such problems, but its transformation cycle is longer and the risk is greater; compared with, the whole machine replacement scheme is more conservative, but it will bring huge unit cost, and the delivery period of rotating wheel dehumidifier is longer than other end products, which will affect the production of lithium battery manufacturers.

[0005] It can be seen that the prior art needs to be improved and improved. UTILITY MODEL CONTENT

[0006] In view of the above shortcomings of the prior art, the purpose of the utility model is to provide a regenerative air treatment device, which can effectively solve the problem that the regenerative air is easy to reach the saturated water vapor state during the regeneration treatment of the rotating wheel, and greatly improve the regeneration efficiency.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] The application discloses a regenerative air treatment device, which comprises a shell and a heat recovery device arranged in the shell, a heat insulation plate is arranged in the middle of the shell, a first cavity and a second cavity are formed above and below the heat insulation plate respectively, a fresh air inlet and an outlet are arranged on the two sides of the shell at the first cavity, and an exhaust air inlet and an outlet are arranged on the two sides of the shell at the second cavity; a pre-dehumidification mechanism and a condensing section of the heat recovery device are arranged in the first cavity along the air inlet and outlet direction respectively; and an evaporating section of the heat recovery device is arranged in the second cavity.

[0009] The regenerative air treatment device further comprises a control device, a first temperature sensor is arranged on the air outlet side of the pre-dehumidification mechanism, and the first temperature sensor and the pre-dehumidification mechanism are electrically connected with the control device respectively.

[0010] The pre-dehumidification mechanism comprises a refrigerated water coil and a condensate water tray, the condensate water tray is arranged on the top of the heat insulation plate, the refrigerated water coil is arranged above the condensate water tray, the first temperature sensor is arranged on the air outlet side of the refrigerated water coil, a regulating valve is arranged on the water inlet of the refrigerated water coil, and the regulating valve is electrically connected with the control device.

[0011] The two sides of the condensate water tray are respectively provided with L-shaped water baffles, the L-shaped water baffles comprise horizontal plates and vertical plates, the vertical plates are fixedly connected with the side portions of the condensate water tray, and the horizontal plates are arranged above the condensate water tray.

[0012] The condensate water tray is provided with a liquid level detection device, the liquid level detection device is used for realizing high water level alarm, a drain hole is arranged on one side of the condensate water tray, a drain valve is arranged at the drain hole, and the liquid level detection device and the drain valve are electrically connected with the control device respectively.

[0013] The fresh air inlet is provided with a filtering device.

[0014] The filtering device comprises a differential pressure gauge and a differential pressure switch which are electrically connected with the control device respectively, the differential pressure gauge is used for confirming the clogging degree of the filtering device, and the differential pressure switch is used for realizing clogging alarm.

[0015] The heat insulation plate comprises two fixed plates, polyurethane foam is filled between the two fixed plates, and the two ends of the fixed plates are fixedly connected with the inner walls of the two sides of the shell; the heat recovery device is a heat pipe, and the heat pipe is a red gold copper pipe.

[0016] The application also provides a rotary dehumidification unit comprising the rotary dehumidification device and the regeneration air treatment device as described above, the first cavity is located at the regeneration air inlet side of the rotary dehumidification device, and the second cavity is located at the regeneration air outlet side of the rotary dehumidification device.

[0017] In the rotary dehumidification unit, the rotary dehumidification device comprises a shell, a rotary wheel core, a regeneration air outlet fan and a regeneration heating box are arranged in the shell, the regeneration air outlet fan is arranged at the regeneration air outlet side of the rotary wheel core and used for conveying the regeneration air to the second cavity, and the regeneration heating box is arranged at the regeneration air inlet side of the rotary wheel core and used for further heating the regeneration air output by the condensation section of the heat recovery device.

[0018] Beneficial effects:

[0019] The regeneration air treatment device provided by the application can reduce the temperature of the regeneration fresh air to below the dew point temperature, greatly reduce the water content of the regeneration fresh air, effectively solve the problem that the regeneration air is easy to reach the saturated water vapor state during the regeneration treatment of the rotary dehumidification unit, and greatly improve the regeneration efficiency of the rotary dehumidification unit. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The structure diagram of the regeneration air treatment device provided by the application is shown.

[0021] Main element symbol explanation: 1 - shell, 11 - heat insulation plate, 12 - first cavity, 13 - second cavity, 14 - fresh air inlet, 15 - air outlet, 16 - air outlet inlet, 17 - air outlet, 2 - heat recovery device, 31 - chilled water coil, 32 - condensate water disc, 321 - drain hole, 33 - water baffle, 4 - filter device. DETAILED DESCRIPTION

[0022] The regeneration air treatment device and the rotary dehumidification unit are provided by the application, in order to make the purpose, technical scheme and effects of the application more clear and explicit, the application will be further described in detail below with reference to the drawings and examples.

[0023] In the description of the utility model, need understanding is, the orientation or position relation indicated by the terms "upper", "lower", "top" and the like is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, can not be understood as the limitation to the utility model, in addition, the terms "mounting", "connecting" and the like should be understood broadly, for the ordinary skilled person in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] Please refer to Figure 1 The utility model provides a kind of regenerative air treatment device, including shell 1 and the heat recovery device 2 being arranged in shell 1, the middle part of the shell 1 is provided with heat insulation plate 11, the upper and lower of the heat insulation plate 11 is formed with first cavity 12 and second cavity 13 respectively, the shell 1 is located at the two sides of the first cavity 12 and is respectively provided with fresh air inlet 14 and outlet 15, the shell 1 is located at the two sides of the second cavity 13 and is respectively provided with exhaust air inlet 16 and exhaust 17;Pre-dehumidification mechanism and the condensing section of heat recovery device 2 are respectively arranged in the first cavity 12 along the air inlet and outlet direction;The evaporation section of the heat recovery device 2 is located in the second cavity 13.

[0025] The application discloses a kind of regenerative air treatment device, by pre-dehumidification mechanism to regenerative fresh air is carried out dehumidification treatment, the temperature of regenerative fresh air can be reduced to dew point temperature below, greatly reduce the moisture content of regenerative fresh air, effectively solve the problem that regenerative air is easy to reach saturated water vapor state when regenerative treatment of rotary dehumidification unit, to greatly improve the regeneration efficiency of rotary dehumidification unit;The condensing section of heat recovery device 2 carries out heating treatment to the air after pre-dehumidification mechanism processing, its evaporation section recovers regenerative exhaust heat for condensing section, improve the working energy efficiency of rotary dehumidification unit, reduce the waste of energy, make the processing process of regenerative air comply with the concept of high efficiency and environmental protection.

[0026] Further, the regenerative air treatment device further includes a control device, a first temperature sensor is arranged on the air outlet side of the pre-dehumidification mechanism, and the first temperature sensor and the pre-dehumidification mechanism are electrically connected to the control device.

[0027] In the embodiment, the control device includes multiple control chips, and the control chip can be an STM32 series control chip.

[0028] Further, the pre-dehumidification mechanism includes a refrigerated water coil 31 and a condensate water coil 32, the condensate water coil 32 is arranged on the top of the heat insulation plate 11, and the refrigerated water coil 31 is arranged above the condensate water coil 32; the first temperature sensor is arranged on the air outlet side of the refrigerated water coil 31, a regulating valve is arranged on the water inlet of the refrigerated water coil 31, and the regulating valve is electrically connected to the control device.

[0029] In the embodiment, by setting the first temperature sensor to obtain the real-time air outlet temperature of the pre-dehumidification mechanism, the control device can adjust the opening degree of the regulating valve according to the real-time air outlet temperature, thereby realizing fine control of the chilled water flow, automatically adjusting the pre-dehumidification effect of the chilled water coil 31 on the regenerated fresh air, and ensuring that the processed regenerated fresh air can meet the preset pre-dehumidification requirement.

[0030] Further, the condensate water tray 32 is provided with L-shaped water baffle plates 33 on both sides, the L-shaped water baffle plates 33 include horizontal plates and vertical plates, the vertical plates are fixedly connected with the side portions of the condensate water tray 32, and the horizontal plates are located above the condensate water tray 32.

[0031] In the embodiment, the vertical plates and the horizontal plates are integrally formed, and the vertical plates are bolted to the condensate water tray 32.

[0032] In the embodiment, in the pre-dehumidification mechanism, the chilled water coil 31 is used to transport chilled water cooled by the cooling tower, effectively absorbs heat in the regenerated fresh air, and thus achieves the purpose of temperature reduction and pre-dehumidification; the condensate water tray 32 is arranged below the chilled water coil 31 and is used to collect condensate water discharged from the chilled water coil 31, water baffle plates 33 are arranged on both sides of the condensate water tray 32, which can prevent overflow or splashing caused by excessive condensate water, help maintain the cleanliness and dryness of the shell 1, and avoid safety hazards caused by water stains.

[0033] Further, a liquid level detection device is arranged in the condensate water tray 32, the liquid level detection device is used to realize high water level alarm, a drain hole 321 is formed in one side of the condensate water tray 32, a drain valve is arranged at the drain hole 321, and the liquid level detection device and the drain valve are electrically connected with the control device.

[0034] In the embodiment, the liquid level detection device can timely issue an alarm when the water level reaches a dangerous level, thereby preventing the occurrence of water overflow accidents; when the liquid level detection device feeds back a high water level alarm signal to the control device, the control device can control the drain valve to open, and realize the drainage of the condensate water tray 32 through the drain hole 321 and the drain valve, thereby ensuring that the condensate water tray 32 is always in the best working state.

[0035] Further, a filtering device 4 is arranged at the fresh air inlet 14.

[0036] In the embodiment, the filtering device 4 is a G2 primary efficiency metal filter; the filtering device 4 is installed at the fresh air inlet 14 of the upper layer of the shell 1 and is used to intercept and filter large particulate matters in the air, such as dust, hair and pollen, thereby ensuring that the air entering the interior of the regenerated air treatment device meets certain cleaning standards.

[0037] Further, the filtering device 4 comprises a differential pressure gauge and a differential pressure switch electrically connected with the control device respectively, the differential pressure gauge is used to confirm the clogging degree of the filtering device 4, and the differential pressure switch is used to realize clogging alarm.

[0038] In the embodiment, the differential pressure gauge is used to monitor the pressure difference between the two ends of the filtering device 4 in real time, when the filtering device 4 is clogged due to too many particulate matters, the reading of the differential pressure gauge will increase, at this time, the differential pressure switch will trigger an alarm to remind the staff to replace or clean the filter in time, so as to ensure the continuous and efficient operation of the regenerative air treatment device; in addition, the filtering device 4 also has an under-air alarm function, when the regenerative air treatment device is insufficient due to the clogging of the filtering device 4 or other reasons, the differential pressure switch will issue an under-air alarm to prevent the insufficient air flow from affecting the performance of the entire rotary dehumidifier unit, and even causing damage to the regenerative air treatment device.

[0039] Further, the heat insulation plate 11 comprises two fixed plates filled with polyurethane foam between the two fixed plates, and the two ends of the fixed plate are fixedly connected with the inner walls of the two sides of the shell 1 respectively; the heat recovery device 2 is a heat pipe, and the heat pipe is a purple gold copper pipe.

[0040] In the embodiment, the heat insulation plate 11 is composed of two fixed plates, and a layer of efficient polyurethane foam is clamped between the two fixed plates, and the formed heat insulation barrier can ensure that the refrigeration cycle of the heat pipe recovery device is carried out normally, and the stability and reliability of the heat recovery device 2 during operation are improved; the heat recovery device 2 is based on heat pipe technology, and a purple gold copper pipe is used as the heat pipe, the purple gold copper pipe has high heat conductivity and high corrosion resistance, which ensures the high efficiency and long service life of the heat pipe during long-term operation.

[0041] The application also correspondingly provides a rotary dehumidifier unit, which comprises a rotary dehumidification device and the regenerative air treatment device as any one of the above, the first cavity 12 is located at the regenerative air inlet side of the rotary dehumidification device, and the second cavity 13 is located at the regenerative air outlet side of the rotary dehumidification device.

[0042] Further, the rotary dehumidification device comprises a shell, the shell is provided with a rotary wheel core, a regenerative air blower and a regenerative heating box; the regenerative air blower is arranged at the regenerative air outlet side of the rotary wheel core and is used to deliver regenerative air to the second cavity 13; and the regenerative heating box is arranged at the regenerative air inlet side of the rotary wheel core and is used to further heat the regenerative air output by the condensation section of the heat recovery device 2.

[0043] In the embodiment, the regenerative heating box can realize further heating of the regenerative fresh air based on the principle of electric heating.

[0044] The pre-dehumidification mechanism of the rotary dehumidifier disclosed in the present application is put into use only in summer and transition seasons, and in winter the pre-dehumidification mechanism is in an inoperative state; specifically, in the dehumidification working condition in summer and transition seasons, the regeneration exhaust fan is turned on, the fresh air inlet 14 on the upper layer of the shell 1 introduces regeneration fresh air from outside the rotary dehumidifier, and the air outlet 15 on the upper layer of the shell 1 is connected to the air duct and connected to the regeneration heating box; the regeneration fresh air is cooled to 11-13°C by the chilled water coil 31, and the water content of the regeneration fresh air is reduced from the original 25-28g / kg to 7.8g / kg-9.0g / kg, during which a large amount of condensed water is precipitated; the condensed water drips into the condensed water pan 32 and is taken out of the rotary dehumidifier through the drain hole 321; the regeneration air after being cooled and dehumidified is returned to the heat pipe The upper condensing section of the heat recovery device 2 absorbs the condensation heat dissipated from the pipe wall and is heated to 30-40°C; the working medium in the evaporating section of the heat pipe absorbs the waste heat of the regenerated exhaust air, absorbs heat and vaporizes, and the high-temperature steam is transported to the condensing section through the intermediate insulation section to condense and release heat for liquefaction, and the liquid then flows back to the evaporating section along the inner wall by gravity, and this cycle is repeated to achieve heat transfer; the regenerated air heated by the condensing section of the heat recovery device 2 is then introduced into the regeneration heating box in the rotary dehumidifier unit for the final heating stage and the rotary regeneration part. The modified regenerated air takes away more moisture from the rotary dehumidifier in the rotary regeneration link, thereby meeting the control requirements of a lower-humidity production environment, avoiding the high-cost modification measures of replacing the entire machine, and achieving the purpose of low-cost modification.

[0045] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and the utility model concept of the present invention, and all these changes or substitutions should fall within the scope of protection of the present invention.

Claims

1. A regenerated air processing device, characterized in that: It includes a shell and a heat recovery device arranged in the shell, a heat insulation board is arranged in the middle of the shell, and a first cavity and a second cavity are formed above and below the heat insulation board respectively, the shell is provided with a fresh air inlet and an air outlet on both sides of the first cavity, and the shell is provided with an exhaust air inlet and an exhaust outlet on both sides of the second cavity; a pre-dehumidification mechanism and a condensing section of the heat recovery device are respectively provided in the first cavity along the inlet and outlet directions; the evaporation section of the heat recovery device is located in the second cavity.

2. A regenerated air processing device according to claim 1, characterized in that: It also includes a control device. A first temperature sensor is provided on the air outlet side of the pre-dehumidification mechanism. The first temperature sensor and the pre-dehumidification mechanism are electrically connected to the control device respectively.

3. A regenerated air processing device according to claim 2, characterized in that: The pre-dehumidification mechanism includes a chilled water coil and a condensed water pan, the condensed water pan is arranged on the top of the insulation board, and the chilled water coil is arranged above the condensed water pan; the first temperature sensor is arranged on the air outlet side of the chilled water coil, and the water inlet of the chilled water coil is provided with a regulating valve, and the regulating valve is electrically connected to the control device.

4. A regenerated air processing device according to claim 3, characterized in that: L-shaped water baffles are respectively provided on both sides of the condensation water tray. The L-shaped water baffles include a horizontal plate and a vertical plate. The vertical plate is fixedly connected to the side of the condensation water tray, and the horizontal plate is located above the condensation water tray.

5. The regenerated air processing device according to claim 3, characterized in that: A liquid level detection device is provided in the condensate water pan, and the liquid level detection device is used to realize a high water level alarm; a drain hole is opened on one side of the condensate water pan, and a drain valve is provided at the drain hole. The liquid level detection device and the drain valve are electrically connected to the control device respectively.

6. The regenerated air processing device according to claim 2, characterized in that: A filtering device is provided at the fresh air inlet.

7. The regenerated air processing device according to claim 6, characterized in that: The filter device includes a differential pressure gauge and a differential pressure switch electrically connected to the control device, respectively. The differential pressure gauge is used to confirm the blockage degree of the filter device, and the differential pressure switch is used to implement a blockage alarm.

8. The regenerated air processing device according to claim 1, characterized in that: The heat insulation plate includes two fixed plates, polyurethane foam is filled between the two fixed plates, and the two ends of the fixed plates are fixedly connected to the inner walls of the two sides of the shell respectively; the heat recovery device is a heat pipe, and the heat pipe is a purple gold copper pipe.

9. A rotary dehumidifier unit, characterized in that: It comprises a rotary dehumidification device and a regeneration air treatment device as described in any one of claims 1 to 8, wherein the first cavity is located on the regeneration air inlet side of the rotary dehumidification device, and the second cavity is located on the regeneration air exhaust side of the rotary dehumidification device.

10. The rotary dehumidifier unit according to claim 9, characterized in that: The rotary dehumidification device includes a casing, in which a rotary wheel core, a regeneration exhaust fan and a regeneration heating box are arranged; the regeneration exhaust fan is arranged on the regeneration exhaust side of the rotary wheel core, and is used to transport the regeneration exhaust air into the second cavity; the regeneration heating box is arranged on the regeneration air inlet side of the rotary wheel core, and is used to further heat the regeneration air output by the condensing section of the heat recovery device.

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