Jet devices and air conditioning

Abstract

This disclosure relates to a jetting device and an air conditioner for alleviating the problem of uneven airflow. The jetting device includes: a housing; a fan disposed within the housing; and a rectifier disposed within the housing and located on the outlet side of the fan. The fan and the rectifier are arranged along a first direction. The rectifier includes an inlet surface and an outlet surface. The inlet surface is arc-shaped and closer to the fan than the outlet surface. The inlet surface has multiple vents, and the outlet surface has a jet nozzle opening to the outside of the housing. The jetting device has a rectifier on the outlet side of the fan. Airflow from the fan enters the rectifier through the multiple vents on the inlet surface, rectifying the airflow to ensure uniformity and prevent eddies. The rectified airflow is then uniformly ejected through the jet nozzle on the outlet surface of the rectifier, resulting in a higher and more stable jet height, thus creating a more uniform indoor airflow and reducing noise.

Description

Technical Field

[0001] This disclosure relates to the field of air conditioning technology, and more particularly to a jet device and an air conditioner. Background Technology

[0002] In some related technologies, the airflow of the indoor unit of a jet air conditioner varies in different wind directions. For example, in shopping malls or train stations, the temperature and wind speed felt when standing in different places are not exactly the same. This results in the following: if the airflow from the nozzle is too large and blows directly on people, it can quickly achieve the effect of heating or cooling, but it will cause discomfort to people. In fact, some groups, such as pregnant women, the elderly, and children, cannot be directly exposed to the airflow. If the airflow from the nozzle is too small and avoids blowing on people, it will result in a longer cooling or heating time. The experience varies greatly depending on the location of the jet air conditioner, and it cannot meet the experience needs of users in all locations. Summary of the Invention

[0003] Some embodiments of this disclosure provide a jetting device and an air conditioner for alleviating the problem of uneven air delivery.

[0004] In one aspect of this disclosure, a jetting device is provided, comprising:

[0005] case;

[0006] A fan, disposed within the housing; and

[0007] A rectifier is disposed inside the housing and located on the air outlet side of the fan. The fan and the rectifier are arranged along a first direction. The rectifier includes an air inlet surface and an air outlet surface. The air inlet surface is an arc-shaped surface and is closer to the fan than the air outlet surface. The air inlet surface is provided with multiple vent holes, and the air outlet surface is provided with a jet port. The jet port leads to the outside of the housing.

[0008] In some embodiments, the rectifier includes a hemispherical component, the hemispherical component including an arcuate surface and a plane connecting the arcuate surface, the arcuate surface being the air inlet surface and the plane being the air outlet surface.

[0009] In some embodiments, there are two rectifiers, namely a first rectifier and a second rectifier. The jet port on the first rectifier is the first jet port, and the jet port on the second rectifier is the second jet port. The first rectifier and the second rectifier are arranged along a second direction, which is perpendicular to the first direction.

[0010] In some embodiments, the central axis of the fan outlet has a first distance L1 between itself and the central axis of the first jet outlet in a second direction, and a second distance L2 between itself and the central axis of the second jet outlet, wherein L1 and L2 are not equal.

[0011] In some embodiments, L1 < L2, and a1 < a2, where a1 is the opening ratio of the air inlet surface of the first rectifying member, and a2 is the opening ratio of the air inlet surface of the second rectifying member.

[0012] In some embodiments, a1 / a2 = 0.8 * (L2 / L1).

[0013] In some embodiments, there is a third distance greater than zero: L3 between the central axis of the outlet of the fan and the central axis of the first jet port in the third direction, and / or, there is a third distance greater than zero: L3 between the central axis of the outlet of the fan and the central axis of the second jet port in the third direction.

[0014] In some embodiments, L3 < 0.5 * R, the rectifying member includes a hemispherical member, and R is the radius of the hemispherical member.

[0015] In some embodiments, the housing includes a first side surface in the first direction, the air inlet surface of the rectifying member is provided on the inner side of the first side surface, the air outlet surface of the rectifying member is provided on the first side surface, and the jet port communicates with the outside of the first side surface.

[0016] In some embodiments, a partition is provided in the housing, the rectifying member is provided between the first side surface and the partition, the fan is provided on the side of the partition away from the rectifying member, there is a fourth distance: L4 between the first side surface and the partition, and the shortest distance between the rectifying member and the partition is a fifth distance: L5, and L4 > 2 * L5.

[0017] In some embodiments, a partition is provided in the housing, the rectifying member is provided between the first side surface and the partition, the fan is provided on the side of the partition away from the rectifying member, the shortest distance between the rectifying member and the partition is a fifth distance: L5, L5 > 0.8R, and the rectifying member includes a hemispherical member, where R is the radius of the hemispherical member.

[0018] In some embodiments, a part of the jet port extends into the cavity formed by the air inlet surface.

[0019] In some embodiments, multiple circles of ventilation holes are provided on the air inlet surface, the ventilation holes in each circle are arranged at intervals in the first direction, and in the first direction, the aperture of the ventilation holes in each circle decreases in sequence.

[0020] In one aspect of the present disclosure, an air conditioner is provided, including the above-mentioned jet device.

[0021] Based on the above technical solutions, the present disclosure has at least the following beneficial effects:

[0022] In some embodiments, the jet device has a rectifier on the air outlet side of the fan. The air outlet of the fan enters the rectifier through multiple vents on the air inlet surface of the rectifier. Since the air inlet surface is curved, it can prevent the air outlet of the fan from blowing vertically towards the non-vent positions on the air inlet surface, thus avoiding airflow reflection and turbulence and generating eddies. Furthermore, since the air inlet surface is curved, it reduces the reflection of the air outlet of the fan, allowing the air outlet of the fan to be rectified and concentrated by the rectifier. Therefore, by setting the rectifier, the airflow can be rectified, making the airflow uniform and avoiding the generation of eddies. The rectified airflow is evenly ejected through the jet nozzle on the air outlet surface of the rectifier, with a higher and more stable jet height, thereby making the indoor air field more uniform and reducing noise. Attached Figure Description

[0023] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of this application. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the drawings:

[0024] Figure 1 This is a front view schematic diagram of a jet device provided according to some embodiments of the present disclosure;

[0025] Figure 2 This is a side view schematic diagram of a jet device provided according to some embodiments of the present disclosure;

[0026] Figure 3a This is a front view schematic diagram of a rectifier provided according to some embodiments of the present disclosure;

[0027] Figure 3b This is a bottom view schematic diagram of a rectifier provided according to some embodiments of the present disclosure;

[0028] Figure 4 This is a cross-sectional schematic diagram of a rectifier provided according to some embodiments of the present disclosure;

[0029] Figure 5a Temperature distribution diagram of an indoor horizontal cross section generated by the jet device provided in some embodiments of this disclosure;

[0030] Figure 5b Temperature distribution diagram of an indoor vertical cross section generated by the jet device provided in some embodiments of this disclosure;

[0031] Figure 6a , Figure 6b and Figure 6c These are schematic diagrams simulating the distribution of indoor airflow at different ranges;

[0032] Figure 7 This is a schematic diagram showing the velocity superposition of the jet flow from the first and second rectifiers of the jet device provided in some embodiments of this disclosure.

[0033] The labels in the attached diagram are explained as follows:

[0034] 1-Shell; 11-First side; 12-Second side; 13-Third side; 14-Fourth side; 15-Fifth side; 16-Sixth side; 17-Block;

[0035] 2- Fan;

[0036] 3-Rectifier; 31-First rectifier; 311-First jet inlet; 32-Second rectifier; 321-Second jet inlet; 301-Air inlet surface; 302-Air outlet surface; 303-Ventilation hole; 304-Jet inlet; 33-Hemispherical component; 331-Arc-shaped surface; 332-Flat surface;

[0037] X - First direction; Y - Second direction; Z - Third direction.

[0038] It should be understood that the dimensions of the various parts shown in the accompanying drawings are not drawn to actual scale. Furthermore, the same or similar reference numerals denote the same or similar components. Detailed Implementation

[0039] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the present disclosure or its application or use. The present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that the present disclosure will be thorough and complete, and will fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless specifically stated otherwise, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0040] The terms "first," "second," and similar words used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "above," "below," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, this relative positional relationship may also change accordingly.

[0041] In this disclosure, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may be not directly connected to the other devices but have an intermediary device.

[0042] All terms used in this disclosure (including technical or scientific terms) have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as a dictionary, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.

[0043] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0044] Figure 1 and Figure 2 This is a schematic diagram of the structure of some embodiments of the jet device according to this disclosure. (See reference) Figure 1 and Figure 2 In some embodiments, the jet device includes a housing 1, a fan 2, and a rectifier 3.

[0045] The fan 2 is housed inside the housing 1. The rectifier 3 is housed inside the housing 1 and located on the outlet side of the fan 2. The fan 2 and the rectifier 3 are arranged along the first direction X. The rectifier 3 includes an inlet surface 301 and an outlet surface 302. The inlet surface 301 is an arc-shaped surface and is closer to the fan 2 than the outlet surface 302. The inlet surface 301 is provided with multiple vent holes 303, and the outlet surface 302 is provided with a jet port 304, which leads to the outside of the housing 1.

[0046] The fan 2 rotates and delivers air. The air is thrown out tangentially by the fan impeller. If the airflow is not evenly distributed and guided, the air will rush straight to the top of the casing 1, which is the first side 11 described below, forming a very large vortex. The air delivery effect is extremely poor, especially for large units.

[0047] Based on this, the jet device provided in this embodiment of the present disclosure has a rectifier 3 set on the air outlet side of the fan 2. The air outlet of the fan 2 enters the rectifier 3 through multiple vents 303 on the air inlet surface 301 of the rectifier 3. Since the air inlet surface 301 is an arc surface, it can prevent the air outlet of the fan 2 from blowing vertically towards the non-vent positions of the air inlet surface 301, causing airflow reflection and turbulence, generating eddies. Moreover, since the air inlet surface 301 is an arc surface, it reduces the reflection of the air outlet of the fan 2, and enables the air outlet of the fan 2 to be rectified and concentrated by the rectifier 3. Therefore, by setting the rectifier 3, the airflow can be rectified, making the airflow uniform and avoiding the generation of eddies. The rectified airflow is evenly ejected through the jet port 304 on the air outlet surface 302 of the rectifier 3, with a higher and more stable jet height, thereby making the indoor air field more uniform and reducing noise.

[0048] In some embodiments, the air inlet surface 301 protrudes towards the fan 2.

[0049] refer to Figure 1 and Figure 2 In this embodiment, the first direction X is parallel to the height extension direction of the housing 1. The second direction Y is perpendicular to the first direction X and parallel to the width extension direction of the housing 1. The third direction Z is perpendicular to both the first and second directions X and Y, and parallel to the thickness extension direction of the housing 1.

[0050] The housing 1 includes a first side 11 and a second side 12 located in the first direction X, a third side 13 and a fourth side 14 located in the second direction, and a fifth side 15 and a sixth side 16 located in the third direction Z.

[0051] The direction from the second side 12 to the first side 11 is the first direction X. The direction from the third side 13 to the fourth side 14 is the second direction Y. The direction from the fifth side 15 to the sixth side 16 is the third direction Z.

[0052] The first side 11, the second side 12, the third side 13, the fourth side 14, the fifth side 15, and the sixth side 16 form the shell 1.

[0053] refer to Figure 3a and Figure 3b In some embodiments, the rectifier 3 includes a hemispherical component 33, which includes an arcuate surface 331 and a plane 332 connecting the arcuate surface 331. The arcuate surface 331 is the air inlet surface 301, and the plane 332 is the air outlet surface 302.

[0054] The rectifier 3 includes a hemispherical component 33. The airflow is rectified by the hemispherical component 33, which can prevent the air outlet of the fan 2 from directly hitting the top of the casing 1 and forming vortices. Therefore, it can effectively reduce the noise of the unit, make the indoor flow field uniform, reduce resistance, and increase the jet height.

[0055] refer to Figure 1 In some embodiments, there are two rectifiers 3, namely a first rectifier 31 and a second rectifier 32. The jet port 304 on the first rectifier 31 is the first jet port 311, and the jet port 304 on the second rectifier 32 is the second jet port 321. The first rectifier 31 and the second rectifier 32 are arranged along the second direction Y, which is perpendicular to the first direction X.

[0056] In some related technologies, the jet device uses a double fan, which has a high cost and increases the complexity of the control system. The jet device provided by the embodiments of the present disclosure includes a fan 2, and the air outlet of the fan 2 is rectified simultaneously by a first rectifying member 31 and a second rectifying member 32, which can improve the uniformity of the air flow, reduce noise, reduce the flow resistance, improve the indoor heat exchange effect, and reduce the temperature difference between any two points in the room. Moreover, the jet device provided by the embodiments of the present disclosure jets through a first jet port 311 and a second jet port 321 respectively, and the jets from the first jet port 311 and the second jet port 321 are superimposed, which can increase the jet height.

[0057] In some embodiments, the structures and dimensional specifications of the first rectifying member 31 and the second rectifying member 32 are the same, or the structures and dimensional specifications of the first rectifying member 31 and the second rectifying member 32 are different.

[0058] Of course, the jet device provided by the embodiments of the present disclosure is not limited to including two rectifying members, and may also include three rectifying members, four rectifying members or more than four rectifying members.

[0059] Reference Figure 1 , in some embodiments, the central axis of the outlet of the fan 2 has a first distance L1 from the central axis of the first jet port 311 in the second direction Y, and the central axis of the outlet of the fan 2 has a second distance L2 from the central axis of the second jet port 321 in the second direction Y. Among them, L1 and L2 are not equal.

[0060] The central axes of the first jet port 311 and the second jet port 321 are both offset from the central axis of the outlet of the fan 2, and L1 and L2 are not equal, which can reasonably utilize the space in the housing 1, minimize the size and mass of the housing 1 as much as possible, and reduce the cost.

[0061] In some embodiments, since L1 and L2 are not equal, in order to improve the uniformity of the air flow, the opening ratio of the air inlet surface 301 of the first rectifying member 31 is different from the opening ratio of the air inlet surface 301 of the second rectifying member 32.

[0062] The different opening ratios of the air inlet surface 301 of the first rectifying member 31 and the air inlet surface 301 of the second rectifying member 32 can make the first rectifying member 31 and the second rectifying member 32 have different air permeability rates, can relieve air flow disturbance, reduce the flow resistance, improve the heat exchange effect and the jet height.

[0063] In some embodiments, L1 < L2, and a1 < a2, where a1 is the opening ratio of the air inlet surface 301 of the first rectifying member 31, and a2 is the opening ratio of the air inlet surface 301 of the second rectifying member 32.

[0064] Since L1 < L2 and the fan 2 is close to the first rectifying member 31, the opening ratio of the first rectifying member 31 is small and the opening ratio of the second rectifying member 32 is large, which is beneficial to the uniform outflow of the air flow from the first rectifying member 31 and the second rectifying member 32.

[0065] In some embodiments, a1 / a2 = 0.8*(L2 / L1).

[0066] Reference Figure 2 , in some embodiments, there is a third distance greater than zero: L3 between the central axis of the outlet of the fan 2 and the central axis of the first jet port 311 in the third direction Z, and / or, there is a third distance greater than zero: L3 between the central axis of the outlet of the fan 2 and the central axis of the second jet port 321 in the third direction Z.

[0067] In the third direction Z, the central axis of the outlet of the fan 2 does not coincide with the central axis of the first jet port 311, and / or, the central axis of the outlet of the fan 2 does not coincide with the central axis of the second jet port 321. This is because: first, the fan 2 has tangential air outlet. If the central axis of the rectifying member 3 coincides with the central axis of the outlet of the fan 2, the tangential wind will directly hit the bottom of the rectifying member 3, forming a huge eddy current and extremely high local resistance. Second, considering the limited design space of the unit, the non - coincidence of the central axes can reduce the volume of the housing 1 and the weight.

[0068] In some embodiments, L3 < 0.5*R, the rectifying member 3 includes a hemispherical member 33, and R is the radius of the hemispherical member 33.

[0069] Through simulation and test, when L3 < 0.5*R, the air flow organization in the third direction Z has little influence on the overall uniform flow and noise reduction effect.

[0070] In some embodiments, the housing 1 includes a first side surface 11 in the first direction X. The air inlet surface 301 of the rectifying member 3 is arranged inside the first side surface 11 (inside the housing 1), the air outlet surface 302 of the rectifying member 3 is arranged on the first side surface 11, and the jet port 304 communicates with the outside of the first side surface 11 (outside the housing 1).

[0071] Reference Figure 1 , in some embodiments, a partition 17 is provided inside the housing 1. The rectifying member 3 is arranged between the first side surface 11 and the partition 17, the fan 2 is arranged on the side of the partition 17 away from the rectifying member 3. There is a fourth distance: L4 between the first side surface 11 and the partition 17, and the shortest distance between the rectifying member 3 and the partition 17 is a fifth distance: L5. L4 > 2*L5, which can ensure the air volume performance of the whole unit.

[0072] In some embodiments, a partition 17 is provided inside the housing 1, a rectifier 3 is disposed between the first side 11 and the partition 17, and a fan 2 is disposed on the side of the partition 17 away from the rectifier 3. The shortest distance between the rectifier 3 and the partition 17 is a fifth distance: L5, where L5 > 0.8R, which can ensure the airflow performance of the entire unit. The rectifier 3 includes a hemispherical part 33, where R is the radius of the hemispherical part 33.

[0073] When the rectifier 3 is installed between the partition 17 and the first side 11, in order to ensure the air volume performance of the whole unit, the fifth distance L5 between the rectifier 3 and the partition 17 is at least greater than 0.8 times R, and the fourth distance L4 between the partition 17 and the first side 11 is greater than twice the fifth distance L5.

[0074] In some embodiments, a portion of the jet port 304 extends into the cavity formed by the air inlet surface 301.

[0075] In some embodiments, the air inlet surface 301 is provided with multiple rings of ventilation holes 303, and the ventilation holes 303 are arranged at intervals along the first direction X. Along the first direction X, the diameter of each ring of ventilation holes 303 decreases sequentially.

[0076] Each ring of vents includes multiple vents 303 spaced apart.

[0077] Optionally, the diameter of each vent 303 in the same ring of vents 303 is the same.

[0078] The vent 303 closest to the air outlet surface 302 has the smallest diameter, while the vent 303 furthest from the air outlet surface 302 has the largest diameter.

[0079] In some embodiments, the surface of the rectifier 3 is provided with damping material, which can absorb the vibration energy of the unit and reduce the noise of the whole machine.

[0080] In some embodiments, reference Figure 1 The first rectifier 31 and the second rectifier 32 have a sixth distance in the second direction Y: L6. The first rectifier 31 is close to the third side 13 and has a seventh distance between it and the third side 13: L7. The second rectifier 32 is close to the fourth side 14 and has an eighth distance between it and the fourth side 14: L8. For the sake of the unit's aesthetic appearance and to facilitate flow equalization, L7 = L8, and 2*R > L6 > L7 + L8.

[0081] In some embodiments, reference Figure 2 The rectifier 3 has a ninth distance: L9 between it and the fifth side L5. The rectifier 3 has a tenth distance: L10 between it and the sixth side 16. Optionally, L9 = L10.

[0082] Some embodiments provide an air conditioner that includes the jet device described above.

[0083] In some embodiments, the air conditioner includes a jet air conditioner.

[0084] The jetting device is located in the indoor unit of an air conditioner. The air volume, air direction, and jet uniformity of the indoor unit are crucial parameters for quickly reaching the user's set indoor temperature. In related technologies, whether using a single or dual fan, the internal airflow field of the indoor unit of a jetting air conditioner is difficult to be uniform. This is especially true for dual-nozzle or multi-nozzle jetting air conditioners. The jet nozzles can only achieve the purpose of jetting, and due to the cross-flow of air inside the room, the uniformity and height of the jet cannot be well guaranteed. This uneven airflow leads to significant temperature differences on indoor surfaces and noticeable noise problems.

[0085] The air conditioner provided in this embodiment adopts the jet device provided in this embodiment. The jet device includes a rectifier 3. Through the rectification effect of the rectifier 3, the airflow can be made uniform, eddies can be avoided, wind resistance and noise can be reduced, and the jet height and heat exchange effect can be improved.

[0086] The jet device provided in this embodiment can be used as an indoor unit of an air conditioner. A static pressure box is formed between the first side 11 of the housing 1 and the partition 17. A first rectifier 31 and a second rectifier 32 are installed on the inner side of the first side 11. Optionally, the first rectifier 31 and the second rectifier 32 are connected to the first side 11 by bolts.

[0087] A variable frequency motor is used to drive the fan 2. The fan 2 can be connected to the mounting beam inside the housing 1 by bolts, and the air outlet of the fan 2 can be fixed to the partition 17 by flange connection. The partition 17, together with the first side 11 and the circumferential side of the housing 1, forms a static pressure box. The partition 17 is also used to separate the air supply section from the surface cooling section.

[0088] The shell 1 can be made of foam board. The foam board includes an inner panel, a front panel, and the foaming material between them. The foaming material is composed of flame-retardant B1 grade polyurethane foam, isocyanate, and a combination of polyethers. This structure is a flame-retardant and cold-bridge-preventing structure, structurally stable, and capable of withstanding static pressure dozens of times greater than that of ordinary sheet metal panel assemblies. The static pressure box panel composed of this structure is tightly and aesthetically pleasingly fixed to the unit frame on all four sides. Compared with traditional sheet metal panels, it eliminates the need for adhesive sponge to prevent cold bridges and condensation, offering advantages such as easy maintenance, airtight airflow, and thermal insulation.

[0089] After testing and verification, the air conditioner provided in this embodiment of the present disclosure has a 15% lower air resistance, an 18% higher heat exchange effect, a 16% higher jet height, and a 6dB lower noise compared to air conditioners without rectifiers in related technologies.

[0090] In related technologies, air conditioners without rectifiers result in temperature differences of more than 10°C between any two points indoors. However, the air conditioner provided in this disclosure can keep the temperature difference between any two points indoors within 3°C.

[0091] For example: Figure 5a and Figure 5b As shown, the air conditioner provided in this embodiment of the present disclosure has a maximum temperature of 27.7°C and a minimum temperature of 25.7°C in the horizontal cross-section of the room, with a temperature difference of 2°C. In the vertical cross-section of the room, the maximum temperature is 27.8°C and the minimum temperature is 26.7°C, with a temperature difference of 2.8°C.

[0092] The effectiveness of the air conditioner provided in the embodiments of this disclosure will be verified below.

[0093] refer to Figure 6a , Figure 6b and Figure 6c A 30-meter-high indoor space was simulated as a dome. With a jet velocity of 1.5 m / s, the range and distribution of the airflow within the dome were as follows: Figure 6a As shown, as the airflow flows, it decelerates. When the airflow velocity is 0.8 m / s, the range and distribution of the airflow within the shield are as follows. Figure 6b As shown, when the airflow velocity decreases to 0.5 m / s, the range and distribution of the airflow within the shield are as follows. Figure 6c As shown. According to Figure 6c When the airflow velocity decreases to 0.5 m / s, the airflow can be evenly filled throughout the entire enclosure. Therefore, for an indoor space with a height of 30 meters, the wake velocity of the jet must be ≥0.5 m / s.

[0094] The air jet device for an air conditioner provided in this embodiment includes a first rectifier 31 and a second rectifier 32. Both the first rectifier 31 and the second rectifier 32 are hemispherical, and the nominal diameters of both the first rectifier 31 and the second rectifier 32 can be 400 mm or 500 mm.

[0095] When the nominal diameters of the first rectifier 31 and the second rectifier 32 are both 400 mm and 500 mm, the axial velocities of the single jets of the first rectifier 31 and the second rectifier 32 at different ranges are calculated using empirical formulas, as shown in Table 1.

[0096] Table 1

[0097] Single jet Nominal diameter 400mm Nominal diameter 500mm Range / m Axial velocity m / s Axial velocity m / s 1 26.44 22.08 2 16.10 13.70 3 11.57 9.93 4 9.03 7.79 5 7.41 6.41 6 6.28 5.44 7 5.45 4.73 8 4.81 4.18 9 4.31 3.75 10 3.90 3.39 15 2.65 2.31 20 2.00 1.75 25 1.61 1.41 30 1.35 1.18

[0098] like Figure 7The diagram shows the superposition analysis of the two jets from the first rectifier 31 and the second rectifier 32. The superposition velocity of the two jets from the first rectifier 31 and the second rectifier 32 at different ranges was calculated using empirical formulas, and the results are shown in Table 2.

[0099] Table 2

[0100] Two jets superimposed Nominal diameter 400mm Nominal diameter 500mm Range / m Superposition velocity m / s Superposition velocity m / s 1 52.02 45.63 2 26.01 22.81 3 17.34 15.21 4 13.00 11.41 5 10.40 9.13 6 8.67 7.60 7 7.43 6.52 8 6.50 5.70 9 5.78 5.07 10 5.20 4.56 15 3.47 3.04 20 2.60 2.28 25 2.08 1.83 30 1.73 1.52

[0101] As shown in Table 2, when the two jets of the first rectifier 31 and the second rectifier 32 are superimposed, the wake velocities are 1.73 m / s and 1.52 m / s respectively when the range is 30 meters. Both are greater than 0.5 m / s. Therefore, the two jets of gas from the first rectifier 31 and the second rectifier 32 can fill the entire 30-meter-high room and can be applied to rooms with larger volumes.

[0102] Based on the embodiments disclosed above, in the absence of explicit denial or conflict, the technical features of one embodiment may be advantageously combined with one or more other embodiments.

[0103] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. The scope of this disclosure is defined by the appended claims.

Claims

1. A jetting device, characterized in that, Comprising: A housing (1); A fan (2), disposed within the housing (1); And A rectifying member (3), disposed within the housing (1) and on the air outlet side of the fan (2), the fan (2) and the rectifying member (3) are arranged along a first direction (X), the rectifying member (3) includes an air inlet surface (301) and an air outlet surface (302), the air inlet surface (301) is an arc surface and is closer to the fan (2) relative to the air outlet surface (302), a plurality of ventilation holes (303) are provided on the air inlet surface (301), a jet port (304) is provided on the air outlet surface (302), and the jet port (304) leads to the outside of the housing (1); The rectifying member (3) includes a hemispherical member (33), the hemispherical member (33) includes an arc surface (331) and a plane (332) connecting the arc surface (331), the arc surface (331) is the air inlet surface (301), and the plane (332) is the air outlet surface (302); The number of the rectifying members (3) is two, namely a first rectifying member (31) and a second rectifying member (32), the jet port (304) on the first rectifying member (31) is a first jet port (311), the jet port (304) on the second rectifying member (32) is a second jet port (321), the first rectifying member (31) and the second rectifying member (32) are arranged along a second direction (Y), and the second direction (Y) is perpendicular to the first direction (X); There is a third distance greater than zero: L3 between the central axis of the outlet of the fan (2) and the central axis of the first jet port (311) in a third direction (Z), and / or, there is a third distance greater than zero: L3 between the central axis of the outlet of the fan (2) and the central axis of the second jet port (321) in the third direction (Z).

2. The jet device as described in claim 1, characterized in that, There is a first distance: L1 between the central axis of the outlet of the fan (2) and the central axis of the first jet port (311) in the second direction (Y), and a second distance: L2 between the central axis of the outlet of the fan (2) and the central axis of the second jet port (321), and L1 and L2 are not equal.

3. The jet device as described in claim 2, characterized in that, L1 < L2, and a1 < a2, where a1 is the opening ratio of the air inlet surface (301) of the first rectifying member (31), and a2 is the opening ratio of the air inlet surface (301) of the second rectifying member (32).

4. The jet device as described in claim 3, characterized in that, a1 / a2 = 0.8*(L2 / L1).

5. The jet device as described in claim 1, characterized in that, L3 < 0.5*R, the rectifying member (3) includes a hemispherical member (33), and R is the radius of the hemispherical member (33).

6. The jet apparatus according to any one of claims 1 to 5, characterized in that, The housing (1) includes a first side surface (11) in the first direction (X), the air inlet surface (301) of the rectifying member (3) is disposed inside the first side surface (11), the air outlet surface (302) of the rectifying member (3) is disposed on the first side surface (11), and the jet port (304) communicates with the outside of the first side surface (11).

7. The jet device as described in claim 6, characterized in that, The housing (1) is provided with a partition (17), the rectifier (3) is located between the first side (11) and the partition (17), the fan (2) is located on the side of the partition (17) away from the rectifier (3), the first side (11) and the partition (17) have a fourth distance: L4, the shortest distance between the rectifier (3) and the partition (17) is a fifth distance: L5, L4>2*L5.

8. The jet device as described in claim 6, characterized in that, The housing (1) is provided with a partition (17), the rectifier (3) is located between the first side (11) and the partition (17), the fan (2) is located on the side of the partition (17) away from the rectifier (3), the shortest distance between the rectifier (3) and the partition (17) is the fifth distance: L5, L5>0.8R, the rectifier (3) includes a hemispherical part (33), and R is the radius of the hemispherical part (33).

9. The jet apparatus according to any one of claims 1 to 5, characterized in that, A portion of the jet inlet (304) extends into the cavity formed by the air inlet surface (301).

10. The jet apparatus according to any one of claims 1 to 5, characterized in that, The air inlet surface (301) is provided with multiple rings of ventilation holes (303), each ring of ventilation holes (303) is arranged at intervals along the first direction (X), and the diameter of each ring of ventilation holes (303) decreases sequentially along the first direction (X).

11. An air conditioner, characterized in that, Includes the jetting device as described in any one of claims 1 to 10.

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