Combined air handling unit with dry steam humidification function
By introducing a dry steam humidifier into the air treatment unit, isothermal humidification is achieved, and the impact of wet film humidifier on the air flow temperature and large water consumption in the prior art is solved, thus achieving air comfort, purification and reducing operating costs. Effect.
Patent Information
- Application Number
- CN202323633227.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2033-12-29
AI Technical Summary
The existing air treatment units have shortcomings in humidity regulation and purification, especially the problem of isenthalpy humidification in wet film humidifiers, which will affect the airflow temperature, and are prone to bacterial growth, and are large in water, which is not energy-saving.
A combined air treatment unit with a dry steam humidifier is adopted to achieve isothermal humidification through a dry steam humidifier to avoid the impact on the airflow temperature and reduce operating costs.
It realizes comfort and purification of the air, reduces operating costs, and avoids pollution of the wet film humidifier and large water consumption.
Smart Images
Figure CN222504195U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air purification, and more specifically to a combined air handling unit with dry steam humidification. Background Art
[0002] The air handling units in comfortable occasions do not have too high requirements for the purification level, and the temperature and humidity adjustment are generally just simple temperature adjustment. For places with humidity requirements, only a direct-discharge wet film humidifier is added behind the coil. Wet film humidification is isenthalpic humidification, which will affect the air flow temperature. At the same time, it is easy to breed bacteria during use, and the water consumption is also large, which is not energy-saving. At this time, if there is a steam source on site, the humidification function can be achieved by adding a dry steam humidifier. Dry steam humidification is isothermal humidification, which will not affect the air flow temperature or cause pollution to the air flow, thereby creating conditions for comfort and purification in the building. Summary of the invention
[0003] In view of the above problems, the technical solution adopted by the utility model provides a new type of comfortable combined air handling unit with dry steam humidification.
[0004] The unit includes a box plate, and the box plate is provided with: a plate-type primary filter, a bag-type medium filter, a coil, a dry steam humidifier, a centrifugal fan and a three-phase asynchronous motor in sequence from the air inlet side to the air outlet side. A water pan is also provided at the bottom of the coil and the dry steam humidifier;
[0005] An air inlet pipe is connected to the box plate through a flange;
[0006] an air outlet pipe, which is in communication with the centrifugal fan;
[0007] Among them, the output shafts of the centrifugal fan and the three-phase asynchronous motor are respectively provided with a fan pulley and a motor pulley, and the outer surfaces of the fan pulley and the motor pulley are provided with belts, so that the three-phase asynchronous motor drives the motor pulley, the motor pulley drives the belt to move, and the belt drives the fan pulley to rotate, so that the fan pulley drives the centrifugal fan to operate.
[0008] The cylindrical surfaces of the fan belt pulley and the motor belt pulley are both provided with grooves.
[0009] The dry steam humidifier is provided with an electric regulating valve.
[0010] The beneficial effects of the present application compared with the prior art are: dry steam humidification is isothermal humidification, which will not affect the air temperature or pollute the airflow, thereby creating conditions for comfort and purification in the building. In addition, for places with steam sources, the operating cost of dry steam humidification is much lower than that of conventional wet film humidification. The unit is widely used in civil buildings and is of great help in regulating the humidity of buildings and reducing operating costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a main structural schematic diagram of the utility model.
[0012] Figure 2 yes Figure 1 Top view of the .
[0013] Among them: 1-plate primary filter, 2-bag medium filter, 3-coil, 4-dry steam humidifier, 5-centrifugal fan, 6-three-phase asynchronous motor, 7-box plate, 8-inspection plate, 9-belt 101-fan pulley, 102-motor pulley, 11-flange, 12-box base, 13-fan base, 14-water tray. DETAILED DESCRIPTION
[0014] The present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0015] like Figure 1-2 As shown, a novel comfortable combined air handling unit with dry steam humidification includes a box plate 7, an air inlet pipe, and an air outlet pipe. The box plate 7 is provided with: a plate-type primary filter 1, a bag-type medium-efficiency filter 2, a coil 3, a dry steam humidifier 4, a centrifugal fan 5 and a three-phase asynchronous motor 6 in sequence from the air inlet side to the air outlet side. A water tray 14 is also provided at the bottom of the coil 3 and the dry steam humidifier 4; the air inlet pipe is connected to the box plate 7 through a flange 11; and the air outlet pipe is connected to the centrifugal fan 5.
[0016] The plate-type primary filter 1 and the bag-type medium-efficiency filter 2 are located behind the mixing section. The two are close together and fixed by the support of sheet metal. The single filter is made of chemical fiber with an aluminum alloy frame. Filters of the same height are connected by buckles and can be pulled out on the slide for easy maintenance. The coil 3 is a copper tube aluminum foil coil. Different circuit structures and fin numbers are selected according to the design requirements of the cold and heat. When passing cold water or hot water, it can cool, dehumidify or heat the air. The dry steam humidifier 4 is made of all stainless steel materials. Its unique double-layer steam sleeve and silencer structure ensure that there is no water spraying phenomenon when the steam is ejected and there is no whistle or noise during the flow and injection of steam. At the same time, the dry steam humidifier 4 is provided with an electric regulating valve, which can realize remote and precise adjustment and control of humidity through the electric regulating valve to play a humidification role.
[0017] The fan 5 is a centrifugal fan with a volute; the three-phase asynchronous motor 6 is a three-phase asynchronous motor matched with the fan absorption power calculated according to the air volume and total static pressure; the box plate 7 is made of galvanized steel plate and white color steel plate as the outer surface, and is foamed by filling polyurethane material as a whole, which has the advantages of high strength, no deformation, good anti-cold bridge effect and low air leakage rate; the inspection panel 8 is located on the inspection side of the unit, located in the mixing section and fan section of the unit, with double-sided handles, and by installing single-sided screws, the inspection panel and the box body are seamlessly connected. The removal of the inspection panel can facilitate the inspection of the filter, fan and motor; the belt 9 is a dust-free belt made of rubber material, which can be adjusted according to the unit type. The corresponding length is calculated by the center distance corresponding to the number; the motor pulley 102 and the fan pulley 101 are respectively nested on the output shaft of the motor 6 and the output shaft of the fan 5, wherein the output shafts of the centrifugal fan 5 and the three-phase asynchronous motor 6 are respectively sleeved with a fan pulley 101 and a motor pulley 102, and the outer surfaces of the fan pulley 101 and the motor pulley 102 are sleeved with a belt 9, so that the three-phase asynchronous motor 6 drives the motor pulley 102, the motor pulley 102 drives the belt 9 to move, and the belt 9 drives the fan pulley 101 to rotate, so that the fan pulley 101 drives the centrifugal fan 5 to operate. In this embodiment, the cylindrical surfaces of 01 and the motor pulley 102 are both provided with grooves.
[0018] The flange 11 is made of galvanized material, connected with the air duct and the box, and installed on the mixing section and fan section of the unit; the box base 12 is made of galvanized material, and the box is fixed to the bottom of the box by bolts. There is a forklift slot on it to facilitate forklift transportation, and lifting ears can also be added for ceiling installation; the fan base 13 is made of channel steel, which has sufficient load-bearing effect on the fan and motor. The fan and motor are installed on the guide rail. The galvanized water tray 14 is in the coil section. The condensed water dehumidified by cooling in summer can directly fall into the water tray and flow out of the unit through the drain port on the side of the water tray.
[0019] When the unit is working, start the three-phase asynchronous motor 6, start the water valve of the coil 3 to pass cold water under summer conditions, and send fresh air into the flange 11 of the air inlet section of the unit through the air inlet pipe for mixing. After the plate-type primary filter 1 filters out dust particles with larger particle sizes, the bag-type medium-efficiency filter 2 filters out dust particles with smaller particle sizes, and finally cools and dehumidifies through the coil 3 to reach the required room temperature and humidity for air supply. Under winter conditions, the surface cooling coil 3 is passed through hot water, and the filtered mixed air is heated by the coil and humidified by dry steam. At this time, the dry steam humidifier 4 needs to open the matching electric regulating valve according to the calculated humidification amount, and it plays a role in heating and humidifying the air. Under summer conditions, the surface cooling coil is passed through cold water, and the filtered mixed air is cooled and dehumidified between the surface cooling coils before being sent out by the fan. The three-phase asynchronous motor 6 and the fan 5 are linked by a belt 9 and a pulley 10. The air treated by the plate-type primary filter 1, the bag-type medium-efficiency filter 2, the coil 3 and the dry steam humidifier 4 is sent to the air supply duct by the fan 5. The box body plays a role in sealing and heat preservation in the unit.
[0020] The above are only preferred implementations of the present invention, but the present invention is not limited to the above specific implementations. For ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.
Claims
1. A combined air handling unit with dry steam humidification, characterized in that it comprises: A box plate (7), wherein the box plate (7) is provided with: a plate-type primary filter (1), a bag-type medium filter (2), a coil (3), a dry steam humidifier (4), a centrifugal fan (5) and a three-phase asynchronous motor (6) in order from the air inlet side to the air outlet side, and a water pan (14) is also provided at the bottom of the coil (3) and the dry steam humidifier (4); An air inlet pipe connected to the box plate (7) via a flange (11); an air outlet pipe connected to the centrifugal fan (5); The outlet shafts of the centrifugal fan (5) and the three-phase asynchronous motor (6) are respectively sleeved with a fan pulley (101) and a motor pulley (102); the outer surfaces of the fan pulley (101) and the motor pulley (102) are sleeved with a belt (9), so that the three-phase asynchronous motor (6) drives the motor pulley (102), the motor pulley (102) drives the belt (9) to move, and the belt (9) drives the fan pulley (101) to rotate, so that the fan pulley (101) drives the centrifugal fan (5) to operate.
2. The combined air handling unit with dry steam humidification according to claim 1 is characterized in that: The cylindrical surfaces of the fan pulley (101) and the motor pulley (102) are both provided with grooves.
3. The combined air handling unit with dry steam humidification according to claim 1 is characterized in that: The dry steam humidifier (4) is provided with an electric regulating valve.