Air humidifying and temperature adjusting device

Abstract

The invention discloses an air humidifying and temperature adjusting device, and relates to the technical field of air humidifiers. The water tank is positioned at the lower part; water outlet holes are distributed in the bottom surface of the spray head; the water pump is used for conveying water in the water tank to the spray head; the centrifugal fan is positioned below the spray head; the flow guide grid surrounds the centrifugal fan, and the lower part of the flow guide grid is connected with the upper part of the water tank; the flow guide grid comprises a plurality of spiral flow guide sheets in a circular array; the upper side surface of each spiral flow deflector is downwards and obliquely arranged towards the axis side; every two adjacent spiral flow deflectors are provided with a staggered area in the vertical direction; the upper portion of the air inlet grille is fixedly connected with the spray head, and the lower portion of the air inlet grille is connected with the flow guide grille. The evaporation surface ratio is larger, dependence on a water curtain filter screen structure is avoided, consumables are not needed, mildewing is not likely to happen, and the cost is lower.

Description

Technical Field

[0001] The invention relates to the technical field of air conditioning equipment, and in particular to a fog-free, water-curtain-free air humidifying and temperature-regulating device, which is particularly suitable for improving the scaling, mildew and atomization pollution problems of traditional humidifiers. Background Art

[0002] Existing air humidifiers are mainly divided into two categories: 1. Fog humidifiers: water molecules are atomized by ultrasound, and pure water must be used to avoid the spread of scale and harmful substances. If used improperly, such as unclean water or the humidifier is not cleaned for a long time, the water mist sprayed by the humidifier may carry bacteria, mold and other microorganisms. These microorganisms will spread in the air with the water mist. After being inhaled by the human body, they are easy to cause respiratory infections, leading to symptoms such as coughing, asthma, and sore throat. It is more harmful to the elderly, children and people with low immunity; 2. Mistless humidifiers: rely on water curtains to increase the evaporation area and accelerate evaporation through fans, but the water curtain is in a humid environment for a long time, which is easy to breed mold, absorb scale, and accumulate dust. There is a contradiction between water absorption and mildew resistance, so the filter needs to be replaced regularly, which increases the cost of use and the workload of maintenance. Therefore, it is of great practical significance to develop a new air humidification and temperature control device to overcome the above-mentioned defects of the existing humidifier. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an air humidification and temperature control device in response to the above-mentioned technical deficiencies. The device uses a centrifugal fan to break up water droplets into fine droplets rather than an atomized state, and uses a guide grille to intercept the splashing water droplets and drain them back to the water tank. The entire process relies on the movement of water droplets in the flowing air to evaporate water vapor. The evaporation surface ratio is larger, does not rely on a water curtain filter structure, does not require consumables, and has a lower cost.

[0004] The technical solution adopted by the present invention is: an air humidifying and temperature regulating device, comprising: A sink located in the lower part; A nozzle located at the upper part, the bottom surface of which is provided with water outlet holes; A water pump, used to deliver water from the tank to the showerhead; A centrifugal fan, wherein the centrifugal fan is located below the nozzle; A guide grille is surrounded by the outside of the centrifugal fan, and the lower part of the guide grille is connected to the upper part of the water tank; the guide grille includes a plurality of spiral guide vanes in a circular array; the upper side of each spiral guide vane is downward and inclined toward the axis; two adjacent spiral guide vanes are provided with staggered areas in the vertical direction; An air intake grille, the upper portion of which is fixedly connected to the nozzle, and the lower portion of which is connected to the guide grille.

[0005] To further optimize the technical solution, the blades of the centrifugal fan are arranged to be tilted downward on the axis side, and all the blades form a V-shaped airspace around the axis.

[0006] To further optimize this technical solution, the speed of the centrifugal fan can be adjusted to control the degree to which the water droplets are dispersed. To further optimize the technical solution, an air humidification and temperature control device also includes a heating module, which is arranged on the air flow path of the centrifugal fan and is used to heat the air.

[0007] To further optimize the technical solution, an air humidification and temperature control device also includes a heating module, which is arranged on the water flow path of the water tank and is used to heat the water flow.

[0008] To further optimize the technical solution, the heating module is a PTC.

[0009] To further optimize the technical solution, the heating module is a heating resistor.

[0010] To further optimize the technical solution, the water pump is a self-priming diaphragm pump.

[0011] To further optimize the technical solution, the water pump is an impeller pump arranged in a water tank.

[0012] To further optimize the technical solution, an air humidification and temperature control device also includes a water level sensor, which is used to monitor the height of the water level in the water tank and control the on and off of the water pump according to the monitoring result.

[0013] To further optimize the technical solution, the materials of the spiral guide vanes, water troughs, and centrifugal fan blades are all hydrophobic materials, or the outer surfaces of the spiral guide vanes, water troughs, and centrifugal fan blades are coated with a hydrophobic coating.

[0014] The present invention adopts a fog-free and water-curtain-free design, which avoids the scale and harmful substance atomization problems that may be generated by foggy humidifiers, as well as the problem that the water curtain of fogless humidifiers is prone to mildew. The water droplets dripping from the nozzle are hit by the blades of the centrifugal fan and centrifugally scattered into finer water droplets. Compared with the water mist droplets of the atomizing humidifier, they are larger, so they will fly along the tangential direction of the movement of the centrifugal fan blades. The spiral guide vanes of the guide grid are spirally tilted to intercept water droplets splashing to the outside and guide the water flow to the water tank to flow smoothly. The spiral guide vanes are spirally designed rather than annularly designed, in order to prevent water accumulation from blocking the passage of airflow and ensure the smooth passage of airflow. In addition, the flow of water along the spiral guide vanes also increases the path distance of evaporation, further improving the humidification efficiency.

[0015] Other technical effects of the present invention will be gradually clarified in the development of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 for Figure 1 Schematic diagram of the decomposition of Figure 3 for Figure 1 sectional view of .

[0017] In the figure, 1. water tank; 2. nozzle; 3. water outlet; 4. water pump; 5. centrifugal fan; 6. guide grille; 7. spiral guide vane; 8. staggered area; 9. air intake grille; 10. V-shaped airspace; 11. water level sensor; 12. water inlet; 13. control circuit compartment; 14. drive motor; 15. push button switch; 16. heating resistor coil. DETAILED DESCRIPTION

[0018] like Figure 1 , Figure 2 As shown: An air humidifying and temperature regulating device, comprising: A water tank 1 located at the lower part; A nozzle 2 located at the upper part, the bottom surface of which is provided with water outlet holes 3; A water pump 4 is used to transport water in the water tank 1 to the nozzle 2; A centrifugal fan 5, wherein the centrifugal fan 5 is located below the nozzle 2; The guide grille 6 surrounds the outside of the centrifugal fan 5, and the lower part of the guide grille 6 is connected to the upper part of the water tank 1; the guide grille 6 includes a plurality of spiral guide vanes 7 in a circular array; the upper side of each spiral guide vane 7 is downward and inclined toward the axis; two adjacent spiral guide vanes 7 are provided with a staggered area 8 in the vertical direction; The air intake grille 9 has an upper portion fixedly connected to the nozzle 2 , and a lower portion connected to the guide grille 6 .

[0019] When the centrifugal fan 5 is working, air is sucked in from the air inlet grille 9, and then blown out from the gaps between the spiral guide vanes 7 of the guide grille 6. The water pump 4 draws water from the water tank 1 and sends it to the nozzle 2, which then sprays it toward the centrifugal fan 5. The water droplets dripping from the nozzle 2 collide with the blades of the centrifugal fan 5, breaking into smaller droplets, and finally being thrown out along the tangent direction of the movement at the edge of the blade. The entire process of the water droplets colliding, becoming smaller, adhering to the blades and rotating, being thrown out from the edge of the blades along the direction of the rotating tangent, being intercepted by the spiral guide vanes, and flowing back into the water tank 1 along the spiral guide vanes 7 is all on the airflow path of the centrifugal fan 5, and the humidification effect can be guaranteed in terms of the evaporation area, evaporation time, and evaporation path.

[0020] The staggered area 8 of adjacent spiral guide vanes is to increase the path for water droplets to escape and intercept, improve the interception effect of water droplets, and offset the interference of airflow on the movement path of water droplets. The vertical height of the staggered area 8 and the horizontal width of the spiral guide vane 7 can be set in a ratio range of 0.2-0.6. The vertical height between adjacent spiral guide vanes 7 is at least 3 mm to prevent the upper and lower layers of water from connecting between the spiral guide vanes 7 and affecting the passage of airflow.

[0021] The wind of the centrifugal fan 5 will give the water flowing along the spiral guide vane 7 an outward flow force, causing the water to spill out from the outer edge of the spiral guide vane 7. The spiral guide vane 7 is tilted downward and toward the axial side to offset the influence of the wind. The downward and axial tilt angle of the spiral guide vane 7 is set in a range of 25° to 65°, which is specifically set according to the maximum wind force and noise of the centrifugal fan 5.

[0022] like Figure 2 As shown, a water filling hole is provided at the center of the nozzle 2, and water is added from the water filling hole, and the water flows into the water tank 1. The driving motor 14 of the centrifugal fan 5 is sealed and waterproof. A control circuit cabin 13 can be sealed at the bottom of the water tank 1 for installing the control circuit of the water pump 4 and the centrifugal fan 5, and a key switch 15 is provided outside the control circuit cabin 13.

[0023] To further optimize this embodiment, the blades of the centrifugal fan 5 are arranged to be tilted downward on the axis side, and all the blades form a V-shaped airspace 10 around the axis.

[0024] The function of the V-shaped airspace 10 is to ensure that the water droplets dripping from the nozzle 2 not only hit the upper part of the fan blades, but are also distributed in the vertical height of the fan blades. In this way, the water droplets will not gather and be thrown out at the same height, but will be distributed in the external space of the entire centrifugal fan 5. This can further improve the uniform distribution of water droplets in the airflow path and improve the humidification efficiency.

[0025] To further optimize this embodiment, the rotation speed of the centrifugal fan 5 can be adjusted to control the degree to which the water droplets are broken up.

[0026] The higher the speed of the centrifugal fan 5, the smaller the particle size of the water droplets, and the better the humidification effect, but the greater the noise. The speed of the centrifugal fan 5 is adjustable, which allows users to choose between noise and humidification effect. According to actual measurements, when the fan blade with an outer diameter of 130mm is matched with a speed range of 800-1500 revolutions per minute, the noise is between 27db-32db, and the humidification evaporation rate is between 200ml-400ml of water per hour.

[0027] To further optimize the present embodiment, an air humidification and temperature control device further includes a heating module, which is disposed on the air flow path of the centrifugal fan 5 and is used for heating the air.

[0028] like Figure 2 As shown, the heating resistance coil 16 selected by the heating module is arranged on the inner side of the air intake grille 9, so as not to be exposed to water mist or to the outside. In addition, the heating module can also be arranged on the outside of the guide grille 6, and a protective net can be installed to prevent contact with the outside. The heating module can adjust the air temperature.

[0029] Different from the heating module installed in the above-mentioned air flow path, the heating module in this embodiment is arranged on the water flow path of the water tank 1 to heat the water flow. Heating the water flow can also indirectly adjust the air temperature and humidification efficiency by adjusting the water flow temperature. The heating module can be arranged on the pipeline between the water pump 4 and the nozzle 2, or it can be arranged in the water tank 1.

[0030] To further optimize this embodiment, the heating module is a PTC. The PTC heating module does not need to use feedback from a temperature sensor, maintains a constant heating temperature, and can heat both water and air.

[0031] To further optimize this embodiment, the heating module is a heating resistor. The heating resistor may be a heating resistor wire suitable for heating air; the heating resistor may be an insulated encapsulated thermocouple tube, which may heat the water path.

[0032] To further optimize this embodiment, the water pump 4 is a self-priming diaphragm pump. The self-priming diaphragm pump has negative pressure suction capability and can be freely installed without being immersed in the water tank 1.

[0033] To further optimize this embodiment, the water pump 4 is an impeller pump disposed in the water tank 1. The impeller pump runs more quietly, has higher energy efficiency than the self-priming diaphragm pump, and is not easily blocked by dust and impurities, but has no self-priming ability, so it needs to be installed at the bottom of the water tank 1.

[0034] To further optimize this embodiment, an air humidification and temperature control device further includes a water level sensor 11, which is used to monitor the height of the water level in the water tank 1 and control the on and off of the water pump 4 according to the monitoring result. When there is a lack of water in the water tank 1, in order to prevent the water pump 4 from running out of water, it should be powered off. In addition, when the heating module is set in the water tank 1, in order to prevent the heating module from drying out, the signal of the water level sensor 11 can also be used to control the on and off of the heating module.

[0035] To further optimize this embodiment, the materials of the spiral guide vanes 7, the water trough 1, and the blades of the centrifugal fan 5 are all hydrophobic materials, or the outer surfaces of the spiral guide vanes 7, the water trough 1, and the blades of the centrifugal fan 5 are coated with a hydrophobic coating.

[0036] Since the present invention does not rely on a water curtain made of a water-absorbing material to increase the evaporation area, the application of a hydrophobic material or a hydrophobic coating can prevent scaling and bacterial growth on the surface.

[0037] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

Claims

1. An air humidifying and temperature regulating device, characterized in that :include: A sink located in the lower part; A nozzle located at the upper part, the bottom surface of which is provided with water outlet holes; A water pump, used to deliver water from the tank to the showerhead; A centrifugal fan, wherein the centrifugal fan is located below the nozzle; A guide grille is surrounded by the outside of the centrifugal fan, and the lower part of the guide grille is connected to the upper part of the water tank; the guide grille includes a plurality of spiral guide vanes in a circular array; the upper side of each spiral guide vane is downward and inclined toward the axis; two adjacent spiral guide vanes are provided with staggered areas in the vertical direction; An air intake grille, the upper portion of which is fixedly connected to the nozzle, and the lower portion of which is connected to the guide grille.

2. The air humidifying and temperature regulating device according to claim 1, characterized in that: The blades of the centrifugal fan are arranged to be tilted downward on the axis side, and all the blades form a V-shaped airspace around the axis.

3. The air humidifying and temperature regulating device according to claim 1, characterized in that: The rotation speed of the centrifugal fan can be adjusted to control the degree to which the water droplets are broken up.

4. The air humidifying and temperature regulating device according to claim 1, characterized in that: The utility model also comprises a heating module, which is arranged on the air flow path of the centrifugal fan and is used for heating the air.

5. The air humidifying and temperature regulating device according to claim 1, characterized in that: It also includes a heating module, which is arranged on the water flow path of the water tank and is used to heat the water flow.

6. An air humidifying and temperature regulating device according to claim 4 or 5, characterized in that : The heating module is PTC.

7. An air humidifying and temperature regulating device according to claim 4 or 5, characterized in that : The heating module is a heating resistor.

8. The air humidifying and temperature regulating device according to claim 1, characterized in that :The water pump is an impeller pump arranged in a water tank.

9. The air humidifying and temperature regulating device according to claim 1, characterized in that: It also includes a water level sensor, which is used to monitor the height of the water level in the water tank and control the on and off of the water pump according to the monitoring result.

10. The air humidifying and temperature regulating device according to claim 1, characterized in that : The materials of the spiral guide vanes, water troughs, and centrifugal fan blades are all hydrophobic materials, or the outer surfaces of the spiral guide vanes, water troughs, and centrifugal fan blades are coated with a hydrophobic coating.

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