An air humidifying and temperature regulating device

Abstract

The present invention discloses an air humidifying and temperature regulating device, which relates to the technical field of air humidifiers. It includes: a water tank located at the lower part; a spray head located at the upper part, with water outlet holes distributed on the bottom surface of the spray head; a water pump for delivering the water in the water tank to the spray head; a centrifugal fan, where the centrifugal fan is located below the spray head; a diversion grille surrounding the outside of the centrifugal fan, and the lower part of the diversion grille is connected to the upper part of the water tank; the diversion grille includes a plurality of spiral diversion vanes arranged in a circular array; the upper side surface of each spiral diversion vane is inclined downward and toward the axis side; there is an overlapping area in the vertical direction between two adjacent spiral diversion vanes; an air intake grille, the upper part of the air intake grille is fixedly connected to the spray head, and the lower part of the air intake grille is connected to the diversion grille. The present invention has a larger evaporation surface ratio, does not rely on the water curtain filter structure, does not require consumables, is not prone to mildew, and has a lower cost.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning equipment, and particularly relates to an air humidifying and temperature regulating device without fog and water curtain, which is especially suitable for improving the problems of scale, mildew and atomization pollution of traditional humidifiers. Background Art

[0002] Existing air humidifiers are mainly divided into two categories: 1. Fog humidifiers: Ultrasonic waves are used to atomize water molecules, and pure water needs to be used to avoid the spread of scale and harmful substances. If used improperly, such as adding unclean water or not cleaning the humidifier for a long time, the water mist sprayed by the humidifier may carry microorganisms such as bacteria and molds. These microorganisms will spread in the air along with the water mist and are easily inhaled by the human body, which can easily cause respiratory infections, resulting in symptoms such as coughing, asthma and sore throat, and is more harmful to the elderly, children and people with low immunity; 2. Mist-free humidifiers: Rely on water curtains to increase the evaporation area and accelerate evaporation through fans. However, the water curtains are prone to breeding molds, adsorbing scale and accumulating dust in a long-term humid environment, and there is a contradiction between water absorption and mildew resistance. Therefore, the filter screen needs to be replaced regularly, which increases the use cost and the workload of maintenance. Therefore, it is of great practical significance to develop a new air humidifying and temperature regulating device to overcome the above defects of existing humidifiers. Summary of the Invention

[0003] The technical problem to be solved by the present invention is, in view of the above-mentioned technical deficiencies, to provide an air humidifying and temperature regulating device, which uses a centrifugal fan to break water droplets into fine water droplets instead of an atomized state, and uses a diversion grille to intercept and divert the splashed water droplets back to the water tank. The whole process relies on the evaporation of water vapor by the movement of water droplets in flowing air, with a larger evaporation surface area, does not rely on the water curtain filter screen structure, does not require consumables, and has lower costs.

[0004] The technical solution adopted by the present invention is: an air humidifying and temperature regulating device, comprising:

[0005] A water tank located at the lower part;

[0006] A nozzle located at the upper part, and water outlet holes are distributed on the bottom surface of the nozzle;

[0007] A water pump for delivering the water in the water tank to the nozzle;

[0008] A centrifugal fan, and the centrifugal fan is located below the nozzle;

[0009] A diversion grille surrounding the outside of the centrifugal fan, and the lower part of the diversion grille is connected to the upper part of the water tank; the diversion grille includes a plurality of spiral diversion vanes arranged in a circular array; the upper side surface of each spiral diversion vane is inclined downward and toward the axis side; there is an interleaved area between two adjacent spiral diversion vanes in the vertical direction;

[0010] The air intake grille, the upper part of the air intake grille is fixedly connected to the nozzle, and the lower part of the air intake grille is connected to the diversion grille.

[0011] To further optimize this technical solution, the fan blades of the centrifugal fan are inclined downward on the axial side, and all the fan blades form a V-shaped airspace around the axis.

[0012] To further optimize this technical solution, the rotational speed of the centrifugal fan is adjustable to control the degree of water droplets being broken up.

[0013] To further optimize this technical solution, an air humidifying and temperature regulating device further includes a heating module, and the heating module is arranged on the air flow path of the centrifugal fan for heating the air.

[0014] To further optimize this technical solution, an air humidifying and temperature regulating device further includes a heating module, and the heating module is arranged on the water flow path of the water tank for heating the water flow.

[0015] To further optimize this technical solution, the heating module is a PTC.

[0016] To further optimize this technical solution, the heating module is a heating resistor.

[0017] To further optimize this technical solution, the water pump is a self-priming diaphragm pump.

[0018] To further optimize this technical solution, the water pump is an impeller pump arranged in the water tank.

[0019] To further optimize this technical solution, an air humidifying and temperature regulating device further includes a water level sensor, and the water level sensor is used to monitor the height of the water level in the water tank and control the on-off of the water pump according to the monitoring result.

[0020] To further optimize this technical solution, the materials of the spiral guide vane, the water tank, and the fan blades of the centrifugal fan are all hydrophobic materials, or the outer surfaces of the spiral guide vane, the water tank, and the fan blades of the centrifugal fan are all coated with hydrophobic coatings.

[0021] By adopting a design without fog and without a water curtain, the present invention avoids the problems of scale and harmful substance atomization that may occur in fog humidifiers, as well as the problem of easy mildew of the water curtain in mist-free humidifiers. The water droplets dripping from the nozzle are hit by the fan blades of the centrifugal fan and centrifugally scattered into finer water droplets. Compared with the water mist droplets of atomizing humidifiers, the water droplets are larger, so they will fly off along the tangential direction of the movement of the centrifugal fan blades. The spiral inclination of the spiral guide vane of the diversion grille can intercept the water droplets from splashing to the outside and guide the water flow to flow smoothly into the water tank. The spiral design of the spiral guide vane instead of the annular design is to prevent the accumulation of water flow from blocking the air flow and ensure the smooth passage of the air flow. And the water flow flowing along the spiral guide vane also increases the evaporation path distance, further improving the humidification efficiency.

[0022] Other technical effects of the present invention will be clearly described gradually in the expansion of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the present invention;

[0024] Figure 2 is Figure 1 exploded schematic diagram of;

[0025] Figure 3 is Figure 1 cross-sectional view of.

[0026] In the figure, 1, water tank; 2, spray head; 3, water outlet hole; 4, water pump; 5, centrifugal fan; 6, flow guide grille; 7, spiral flow guide vane; 8, staggered area; 9, air intake grille; 10, V-shaped airspace; 11, water level sensor; 12, water filling port; 13, control circuit cabin; 14, drive motor; 15, key switch; 16, heating resistance coil. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] As Figure 1 , Figure 2 shown:

[0028] An air humidifying and temperature regulating device, comprising:

[0029] A water tank 1 located at the lower part;

[0030] A spray head 2 located at the upper part, and the bottom surface of the spray head 2 is distributed with water outlet holes 3;

[0031] A water pump 4 for conveying the water in the water tank 1 to the spray head 2;

[0032] A centrifugal fan 5, and the centrifugal fan 5 is located below the spray head 2;

[0033] A flow guide grille 6 surrounding the outside of the centrifugal fan 5, and the lower part of the flow guide grille 6 is connected to the upper part of the water tank 1; the flow guide grille 6 includes a plurality of spiral flow guide vanes 7 arranged in a circular array; the upper side surface of each spiral flow guide vane 7 is inclined downward and toward the axis side; an staggered area 8 is provided between two adjacent spiral flow guide vanes 7 in the vertical direction;

[0034] An air intake grille 9, the upper part of the air intake grille 9 is fixedly connected to the spray head 2, and the lower part of the air intake grille 9 is connected to the flow guide grille 6.

[0035] When the centrifugal fan 5 is working, air is inhaled from the intake grille 9 and then blown out from the gaps between the spiral guide vanes 7 of the guide grille 6. The water pump 4 pumps the water in the water tank 1 to the nozzle 2, and then the nozzle 2 sprays the water onto the centrifugal fan 5. The water droplets dripping from the nozzle 2 collide with the fan blades of the centrifugal fan 5, break into finer water droplets, and finally are thrown out along the tangential direction of the movement at the edges of the fan blades. The whole process of the water droplets colliding, becoming finer, adhering to the fan blades and rotating, being thrown out along the tangential direction of the rotation from the edges of the fan blades, being intercepted by the spiral guide vanes, and flowing back into the water tank 1 along the spiral guide vanes 7 is on the airflow path of the centrifugal fan 5, and the humidification effect can be ensured in terms of evaporation area, evaporation duration and evaporation path.

[0036] The staggered area 8 between adjacent spiral guide vanes is to increase the path for water droplets to escape interception, improve the interception effect on water droplets, and offset the interference of the airflow on the movement path of water droplets. The ratio range of the vertical height of the staggered area 8 to the lateral width of the spiral guide vane 7 can be set between 0.2 and 0.6. The vertical height between adjacent spiral guide vanes 7 is at least 3 mm to prevent the water flow between the upper and lower layers from connecting between the spiral guide vanes 7 and affecting the airflow passage.

[0037] The wind of the centrifugal fan 5 will give an outward flow force to the water flowing along the spiral guide vane 7, causing the water flow to spill out from the outer edge of the spiral guide vane 7. The spiral guide vane 7 is inclined downward and toward the axial side, which can offset the influence of the wind force. The downward and axial side inclination angle of the spiral guide vane 7 is set in the range of 25° to 65°, specifically set according to the maximum wind force and noise of the centrifugal fan 5.

[0038] As Figure 2 shown, a water filling hole is penetrated through the central part of the nozzle 2, and water is added from the water filling hole, and the water flow enters the water tank 1. The drive 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 circuits of the water pump 4 and the centrifugal fan 5, and a key switch 15 is arranged outside the control circuit cabin 13.

[0039] To further optimize this embodiment, the fan blades of the centrifugal fan 5 are inclined downward on the axial center side, and all the fan blades form a V-shaped airspace 10 around the axial center.

[0040] The function of the V-shaped airspace 10 is to make the water droplets dripping from the nozzle 2 not only hit the upper part of the fan blades, but be distributed over 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 are distributed in the external space of the entire centrifugal fan 5, which can further improve the uniform distribution degree of the water droplets on the airflow path and improve the humidification efficiency.

[0041] To further optimize this embodiment, the rotation speed of the centrifugal fan 5 is adjustable to control the degree of water droplets being broken up.

[0042] The higher the rotation speed of the centrifugal fan 5, the smaller the particle size of the water droplets broken up, and the better the humidifying effect. However, the noise is greater. The rotation speed of the centrifugal fan 5 is adjustable, providing a choice between noise and humidifying effect. After actual measurement, when the fan blade with an outer diameter of 130 mm has a rotation speed matching range of 800 to 1500 revolutions per minute, the noise is between 27 db and 32 db, and the humidifying evaporation rate is between 200 ml and 400 ml of water per hour.

[0043] To further optimize this embodiment, an air humidifying and temperature regulating device further includes a heating module, and the heating module is arranged on the air flow path of the centrifugal fan 5 for heating air.

[0044] As Figure 2 shown, the heating resistance coil 16 selected for the heating module is arranged inside the air intake grille 9, will not come into contact with water mist, and will not be exposed externally. In addition, the heating module can also be arranged outside the diversion grille 6 and a protective net can be installed to prevent contact with the outside world. The heating module can adjust the air temperature.

[0045] Different from adding a heating module to the above air flow path, in this embodiment, the heating module is arranged on the water flow path of the water tank 1 for heating water flow. Heating the water flow can also indirectly adjust the air temperature and the humidifying 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 can be arranged in the water tank 1.

[0046] To further optimize this embodiment, the heating module is a PTC. The PTC heating module does not need to adopt the feedback of a temperature sensor and maintains a constant heating temperature, and can heat both water and air.

[0047] To further optimize this embodiment, the heating module is a heating resistor. The heating resistor can be a heating resistance wire, suitable for heating air; the heating resistor can be an insulated and encapsulated thermocouple tube, which can heat the water path.

[0048] To further optimize this embodiment, the water pump 4 is a self-priming diaphragm pump. The self-priming diaphragm pump has a negative pressure suction ability, and its installation position can be set freely without being immersed in the water tank 1.

[0049] To further optimize this embodiment, the water pump 4 is an impeller pump arranged 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.

[0050] Further optimizing this embodiment, an air humidifying and temperature regulating device further includes a water level sensor 11. The water level sensor 11 is used to monitor the height of the water level in the water tank 1 and control the on / off of the water pump 4 according to the monitoring result. When the water tank 1 is short of water, in order to prevent the water pump 4 from running without water, it should be powered off. In addition, when the heating module is arranged in the water tank 1, in order to prevent the heating module from dry burning, the signal of the water level sensor 11 can also be used to control the on / off of the heating module.

[0051] Further optimizing this embodiment, the materials of the spiral guide vane 7, the water tank 1, and the fan blade of the centrifugal fan 5 are all hydrophobic materials, or the outer surfaces of the spiral guide vane 7, the water tank 1, and the fan blade of the centrifugal fan 5 are all coated with hydrophobic coatings.

[0052] Since the present invention does not rely on a water curtain made of water-absorbent material to increase the evaporation area, the application of hydrophobic materials or hydrophobic coatings can prevent surface scaling and bacterial growth.

[0053] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0054] In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions conflicts with each other or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

Claims

1. An air humidifying and temperature regulating device, characterized in that : Comprising: A water tank located at the lower part; A nozzle located at the upper part, with water outlet holes distributed on the bottom surface of the nozzle; A water pump for delivering the water in the water tank to the nozzle; A centrifugal fan, with the centrifugal fan located below the nozzle; A flow guide grille surrounding the outside of the centrifugal fan, with the lower part of the flow guide grille connected to the upper part of the water tank; the flow guide grille includes a plurality of spiral flow guide vanes arranged in a circular array; the upper side surface of each spiral flow guide vane is inclined downward and toward the axis side; there is an overlapping area in the vertical direction between two adjacent spiral flow guide vanes; an air intake grille, with the upper part of the air intake grille fixedly connected to the nozzle and the lower part of the air intake grille connected to the flow guide grille; A heating module, with the heating module arranged on the air flow path of the centrifugal fan for heating air; or, the heating module is arranged on the water flow path of the water tank for heating water flow.

2. The air humidifying and temperature regulating device according to claim 1, wherein : The fan blades of the centrifugal fan are inclined downward on the axis side, and all the fan 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 is adjustable to control the degree of water droplets being broken up.

4. An air humidifying and temperature regulating device according to claim 1, wherein : The heating module is a PTC.

5. An air humidifying and temperature regulating device according to claim 1, characterized in that : The heating module is a heating resistor.

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

7. An air humidifying and temperature regulating device according to claim 1, characterized in that , further comprising a water level sensor for monitoring the height of the water level in the water tank and controlling the on / off of the water pump according to the monitoring result.

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

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