Low-temperature induction air supply outlet

Abstract

The utility model discloses a low temperature induction air supply outlet which comprises a static pressure induction box body and a flow guide air port assembly, the static pressure induction box body is of a transverse strip structure, a plurality of sets of nozzles are formed in the bottom of a hollow cavity, the side edge of the hollow cavity is communicated with an external low temperature air supply outlet, and low temperature cold air enters the low temperature air supply outlet through the hollow cavity and then flows into the flow guide air port assembly. Spraying from a nozzle; a transverse high-temperature return air inlet is formed in the upper portion of the flow guide air opening assembly, flow guide air openings are formed in the bottoms of the first flow guide plate and the second flow guide plate, and low-temperature cold air sprayed out of the nozzle is sprayed out of the flow guide air openings after being mixed with high-temperature hot air of the high-temperature return air inlet. According to the whole device, the static pressure induction box body and the flow guide air port assembly are mutually independent, meanwhile, high-temperature air entering from a nozzle and a high-temperature air return inlet of the flow guide air port assembly is fully mixed, the air supply temperature is increased, attached air supply airflow is formed to be sent out, the blowing feeling of cold air is reduced, and the air supply comfort of the air conditioner is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of heating equipment, specifically relates to a low temperature induced air outlet. BACKGROUND

[0002] Low temperature induced air outlet is a kind of terminal air supply device in low temperature air supply air conditioning system, it realizes low temperature air supply by special design, and it avoids dewing and uncomfortable feeling caused by too low air supply temperature.The following is some influences of low temperature induced air outlet on air outlet temperature.

[0003] Low temperature induced air outlet usually has high induction ratio, which means that it can effectively induce indoor air to mix with low temperature primary air, thereby increasing air supply temperature, making it more suitable for indoor environment and avoiding overcooling.

[0004] In Chinese patent application publication No.CN210801547U, an induced isolation type anti-dewing air outlet is disclosed, comprising: air supply outer shell, central isolation cavity, return air isolation cavity, air supply port, return air port;The central isolation cavity separates the temperature of the primary cold air and the indoor return air, the primary air supply channel between the air supply outer shell and the central isolation cavity generates negative pressure, the indoor return air is injected into the indoor return air channel between the central isolation cavity and the return air isolation cavity, and the cold air is mixed and then blown to the indoor from the secondary air supply channel, to prevent the indoor return air from dewing at the air outlet position.But this air outlet is easy to cause confusion when cold air and hot air are mixed, which affects comfort. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a low temperature induced air outlet, which solves the above technical problems existing in the prior art.

[0006] The purpose of the utility model can be realized by the following technical solutions:

[0007] A low temperature induced air outlet, comprising a static pressure induction box body, a flow guide air outlet assembly,

[0008] A hollow cavity structure is formed in the interior of the static pressure induction box body, a plurality of nozzles are formed in the bottom of the hollow cavity, and the side of the hollow cavity is communicated with the external low temperature air outlet, and the low temperature air outlet enters the low temperature cold air through the hollow cavity and sprays from the nozzle;

[0009] The flow guide air outlet assembly is located below the static pressure induction box body, comprising a first flow guide plate and a second flow guide plate, a horizontal high temperature return air inlet is formed in the upper part of the flow guide air outlet assembly, and the first flow guide plate and the second flow guide plate form a flow guide air outlet for air outlet, the low temperature cold air sprayed from the nozzle is mixed with the high temperature hot gas entering the high temperature return air inlet, and then sprayed from the flow guide air outlet.

[0010] Further, the nozzle array is distributed in the lower part of the hollow cavity.

[0011] Further, the nozzles are arranged in single or double rows, and the distance between two adjacent groups of nozzles in the single row is 20-40 cm.

[0012] Further, the aperture size of the nozzles is 6-20 mm.

[0013] Further, the inner wall of the hollow cavity where the static pressure induction box is located is provided with a heat preservation layer.

[0014] Further, the flow rate of the low-temperature cold air sprayed by the nozzles is 6-10 m / s.

[0015] The induction ratio of the low-temperature cold air sprayed by the nozzles to the hot air entering the high-temperature return air inlet is between 1:0.8 and 1:3.

[0016] Further, the high-temperature return air inlets are symmetrically arranged on both sides of the flow guide air inlet assembly and simultaneously supply air to the position where the flow guide air inlet assembly is located.

[0017] Further, the first flow guide plate has a curved neck structure with wide upper and lower ends and narrow middle, and the second flow guide plate has a tapered structure with narrow upper end and wide lower end, so that the second flow guide plate is located at the wide lower end of the first flow guide plate, forming two channels for the flow guide air inlet.

[0018] Further, the middle part of the inner side of the first flow guide plate is curved inward to form an arch surface structure, and the second flow guide plate has a tapered structure with narrow upper end and wide lower end, so that the first flow guide plate and the second flow guide plate form a single-channel flow guide air inlet.

[0019] Further, the inner walls of the first flow guide plate and the second flow guide plate are smooth curved surface structures.

[0020] The beneficial effects of the utility model are as follows:

[0021] 1. The static pressure induction box and the flow guide air inlet assembly of the device are designed independently, the arrangement and aperture distribution of the nozzles are fully mixed with the high-temperature gas entering the high-temperature return air inlet of the flow guide air inlet assembly, the cold air outflow speed of the nozzles is controlled, the pressure loss and energy loss can be reduced, the hot air of the high-temperature return air inlet can be mixed at a proper induction ratio, and the mixed air can be discharged from the flow guide air inlet.

[0022] 2. The first guide plate provided by the present invention has a curved neck structure that is wide at the top and bottom and narrow in the middle. Its upper part can provide a larger air intake volume, and then through the space area of ​​the middle part, the curved neck air inlet can guide the airflow to mix before entering the space, thereby providing a more uniform outlet air temperature.

[0023] 3. The air guide vent assembly used in this device has two design options, which can mix cold air and hot air to achieve a larger air outlet area and air outlet angle, increase the supply air temperature, and form an attached airflow to reduce the blowing sensation of cold air and improve the comfort of air conditioning supply. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0026] Figure 2 This is a partial structural schematic diagram of the airflow guide vent assembly according to an embodiment of this utility model;

[0027] Figure 3 This is a schematic diagram of the overall structure of another embodiment of the present invention. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0029] like Figure 1 , Figure 2 As shown, this embodiment of the utility model provides a low-temperature induced air outlet, including a static pressure induction box 1 and a flow guide air outlet assembly 2.

[0030] The static pressure induction chamber 1 has a horizontal box-shaped structure with a hollow cavity 101 in the middle for ventilation. At the bottom of the hollow cavity 101, there are several sets of nozzles 11. In order to ensure that the low-temperature cold air ejected by the nozzles 11 is uniform, the nozzles 11 can be divided into single-row or double-row structures and are distributed in parallel (of course, the nozzles 11 can also be divided into single-row structures as needed, and can be adjusted as needed). The distance between two adjacent sets of nozzles 11 on an independent single row is 20-40cm. At this time, the orifice size of the nozzles 11 is 6-20mm, which ensures the uniformity of the ejected low-temperature cold air, can fully mix with the high-temperature return air, and simultaneously reduces energy consumption.

[0031] The inner wall of the hollow cavity 101 where the static pressure induction box 1 is located is provided with a heat preservation layer 102. The design of the heat preservation layer 102 can reduce the influence of the external ambient temperature on the low-temperature cold air entering through the low-temperature air supply port 12.

[0032] The side of the hollow cavity 101 is in communication with the low-temperature air supply port 12 outside. The low-temperature cold air enters the hollow cavity 101 through the low-temperature air supply port 12 and is then sprayed out from the nozzle 11. At this time, the flow rate of the low-temperature cold air sprayed from the nozzle 11 is 6-10 m / s.

[0033] The flow guide air port assembly 2 is located below the static pressure induction box 1 and includes a first flow guide plate 21 and a second flow guide plate 22. A horizontal high-temperature return air inlet 23 is provided in the upper part of the flow guide air port assembly 2. At this time, the high-temperature return air inlet 23 is symmetrically arranged on both sides of the flow guide air port assembly 2 and simultaneously supplies air to the position where the flow guide air port assembly 2 is located. At this time, the low-temperature cold air sprayed from the nozzle 11 above is fully mixed with the air entering through the high-temperature return air inlet 23, that is, the induction ratio of the low-temperature cold air sprayed from the nozzle 11 to the hot air entering through the high-temperature return air inlet 23 is between 1:0.8 and 1:3. The air supply volume is changed to meet the indoor temperature requirement instead of changing the air supply temperature. Under different load conditions, the air conditioning system adjusts the air supply volume to maintain the constant indoor temperature. By optimizing the induction ratio, the energy efficiency and indoor thermal comfort of the air conditioning system can be improved. At this time, the ratio of low-temperature cold air to hot air is not fixed but dynamically changes according to actual requirements.

[0034] The first flow guide plate 21 has a curved neck structure with wide upper and lower ends and narrow middle. The upper part can provide a larger air inlet volume, which is then compressed through the space area in the middle part. The curved neck air inlet can mix the air flow before entering the space, thereby providing more uniform air outlet temperature and reducing turbulence and vortex in air flow, which helps to maintain constant air outlet temperature and reduce temperature fluctuations caused by air flow disturbance. The second flow guide plate 22 has a tapered structure with narrow upper and wide lower parts and is located below the first flow guide plate 21 (a group of second flow guide plates 22 are used at this time), thereby dividing the opening in the lower part of the second flow guide plate 22 into two separate parts. The first flow guide plate 21 and the second flow guide plate 22 form two left and right flow guide air ports 201. The low-temperature cold air sprayed from the nozzle 11 is mixed with the high-temperature hot air of the high-temperature return air inlet 23 and is then sprayed from the flow guide air port 201. The deflection direction of the flow guide air port 201 is deflected to both sides, which can further realize the angle of the air outlet surface and improve the comfort of the air outlet.

[0035] At this time, the first guide plate 21 and the second guide plate 22 where the guide air port 201 is located are smooth curved surface structures, which can realize smooth and smooth air inlet and air outlet.

[0036] In another embodiment,

[0037] As Figure 3 shown, the static pressure induction box 1 adopts the same structure as the above actual example, only the position of the guide air port assembly 2 is partially changed.

[0038] The middle part of the inner side of the first guide plate 21 is formed as an inwardly curved arch surface structure, and the second guide plate 22 is in a tapered structure with a narrow upper part and a wide lower part, so that the first guide plate 21 and the second guide plate 22 form a single-channel guide air port 201. At this time, the single-channel guide air port 201 can still realize the mixing of the low-temperature cold air sprayed by the nozzle 11 and the high-temperature hot gas of the high-temperature return air inlet 23, and then sprayed from the guide air port 201, thereby improving the comfort of the air outlet.

[0039] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A low-temperature induction air supply outlet, comprising a static pressure induction box (1) and a guide air outlet assembly (2), characterized in that, a hollow cavity (101) is formed in the interior of the static pressure induction box (1), a plurality of groups of nozzles (11) are arranged at the bottom of the hollow cavity (101), and the side of the hollow cavity (101) is in communication with an external low-temperature air supply outlet (12), through which low-temperature cold air enters the hollow cavity (101) and is sprayed out from the nozzles (11); the guide air outlet assembly (2) is located below the static pressure induction box (1) and comprises a first guide plate (21) and a second guide plate (22), a horizontal high-temperature return air inlet (23) is arranged at the upper portion of the guide air outlet assembly (2), the first guide plate (21) and the second guide plate (22) form a guide air outlet (201) for air outlet, and the low-temperature cold air sprayed out from the nozzles (11) is mixed with the high-temperature hot air entering the high-temperature return air inlet (23) and is sprayed out from the guide air outlet (201).

2. The cryogenic induction air outlet of claim 1, wherein, The nozzles (11) are arranged in an array at the lower portion of the hollow cavity (101).

3. The cryogenic induction air supply outlet of claim 2, wherein, The nozzles (11) are arranged in a single row or a double row in parallel, and the distance between the adjacent two groups of nozzles (11) in the single row is 20-40 cm.

4. The cryogenic induction air supply outlet of claim 3, wherein, The diameter of the nozzles (11) is 6-20 mm.

5. The cryogenic induction air outlet of claim 1, wherein, A heat preservation layer (102) is arranged on the inner wall of the hollow cavity (101) in which the static pressure induction box (1) is located.

6. The cryogenic induction air outlet of claim 1, wherein, The flow rate of the low-temperature cold air sprayed out from the nozzles (11) is 6-10 m / s. The induction ratio of the low-temperature cold air sprayed out from the nozzles (11) to the hot air entering the high-temperature return air inlet (23) is 1:0.8-1:

3.

7. The cryogenic induction air outlet of claim 1, wherein, The high-temperature return air inlets (23) are symmetrically arranged on both sides of the guide air outlet assembly (2) and simultaneously supply air to the position of the guide air outlet assembly (2).

8. The cryogenic induction air outlet of claim 1, wherein, The first guide plate (21) has a curved neck structure with wide upper and lower ends and a narrow middle portion, and the second guide plate (22) has a tapered structure with a narrow upper portion and a wide lower portion, so that the second guide plate (22) is located at the wide lower end of the first guide plate (21) and forms two channels for the guide air outlet (201).

9. The cryogenic induction air outlet of claim 1, wherein, The middle portion of the inner side of the first guide plate (21) has an inwardly curved arch surface structure, and the second guide plate (22) has a tapered structure with a narrow upper portion and a wide lower portion, so that the first guide plate (21) and the second guide plate (22) form a single-channel guide air outlet (201).

10. Cryogenic induction air outlet according to claim 8 or 9, characterized in that The inner walls of the first guide plate (21) and the second guide plate (22) of the guide air outlet (201) have smooth curved surface structures.

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