CN110645692A - Air outlet device and air conditioning unit - Google Patents
Air outlet device and air conditioning unit Download PDFInfo
- Publication number
- CN110645692A CN110645692A CN201911013473.4A CN201911013473A CN110645692A CN 110645692 A CN110645692 A CN 110645692A CN 201911013473 A CN201911013473 A CN 201911013473A CN 110645692 A CN110645692 A CN 110645692A
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- China
- Prior art keywords
- air
- outlet device
- controller
- air volume
- duct
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63J—AUXILIARIES ON VESSELS
- B63J2/00—Arrangements of ventilation, heating, cooling, or air-conditioning
- B63J2/02—Ventilation; Air-conditioning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/22—Cleaning ducts or apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/34—Heater, e.g. gas burner, electric air heater
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ocean & Marine Engineering (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application provides an air-out device and air conditioning unit. The air outlet device comprises a box body, an air valve, a driving mechanism and an air volume detector. The box body is provided with an air inlet and an air supply outlet which are communicated with the interior of the box body, and an air channel is formed in the box body and communicated with the air inlet and the air supply outlet. The air volume detector is arranged in the air duct and used for detecting the air volume value in the air duct, and the air volume detector is arranged in the air duct at a position close to the air supply outlet and far away from the air inlet. Because the air volume detector is arranged at the position close to the air supply outlet and far away from the air inlet in the air duct, the air valve can not influence the flow field at the position of the air volume detector, the air flow can be ensured to flow equalized through a certain flow equalizing section, and thus the measurement precision of the air volume detector is not influenced, and the controller can more accurately control the air volume based on more accurate data.
Description
Technical Field
The invention relates to the technical field of air conditioning equipment, in particular to an air outlet device and an air conditioning unit.
Background
Fig. 1 shows an air outlet device in the prior art, which includes a box 1, an anechoic chamber 2, an air valve 3, an air valve actuator 4, a terminal controller 5, a reheater 6, an air volume measuring device 7, a temperature measuring device 8, a diffuser 9, and an air supply collector 10. The amount of air supplied is controlled by the end controller 5 in accordance with the indoor temperature detected by the room temperature measuring device 8, and the amount of air supplied is controlled by the control valve 3. Generally, a variable air volume system is generally composed of a combined air conditioner and 20-30 air outlet devices, and the air outlet devices not only need to adjust the air supply volume required by the air outlet devices, but also need to overcome different inlet static pressures according to different installation positions to ensure the balance of a whole system pipe network.
In the prior art, as shown in fig. 1, an air volume measuring device 7 is generally used to detect the air volume and adjust the air volume more accurately. However, the air quantity measuring device 7 is arranged close to the air inlet, so that the air quantity detection is inaccurate, and the adjustment precision of the air quantity is influenced.
Disclosure of Invention
The embodiment of the invention provides an air outlet device and an air conditioning unit, and aims to solve the technical problem that the air outlet device in the prior art is poor in air volume adjusting precision.
The embodiment of the application provides an air-out device, includes: the air inlet and the air outlet which are communicated with the interior of the box body are arranged on the box body, and an air channel is formed in the box body and is communicated with the air inlet and the air outlet; the air valve is movably arranged in the box body and is positioned at the air inlet; the driving mechanism is arranged in the box body and used for driving the air valve to move; the air volume detector is arranged in the air duct and used for detecting the air volume value in the air duct, and the air volume detector is arranged in the air duct at a position close to the air supply outlet and far away from the air inlet; and the controller is arranged in the air duct and is electrically connected with the air volume detector and the driving mechanism, and the controller controls the operation of the driving mechanism according to the air volume value.
In one embodiment, the air outlet device further includes: the first temperature detector is arranged in the air duct and used for detecting an air duct temperature value in the air duct, the controller is further electrically connected with the first temperature detector, and the controller further controls the operation of the driving mechanism according to the air duct temperature value.
In one embodiment, the air outlet device further includes: the heater is arranged in the air duct and used for heating air flow in the air duct, and the controller controls the operation of the heater.
In one embodiment, the air outlet device further includes: the second temperature detector is arranged outside the box body and used for detecting an environmental temperature value, the controller is also electrically connected with the second temperature detector, and the controller controls the operation of the driving mechanism according to the air duct temperature value, the environmental temperature value and the air volume value.
In one embodiment, the first temperature detector is located downstream of the heater.
In one embodiment, the air volume detector is a pitot tube.
In one embodiment, the portion of the air valve that is engaged with the air inlet is formed with a curved structure.
In one embodiment, the curved structure is a tapered structure.
In one embodiment, the drive mechanism is an electric push rod, and the air valve is mounted at an actuating end of the electric push rod.
In one embodiment, the air outlet device further comprises a diffuser, and the diffuser is mounted on the air supply outlet.
The application also provides an air conditioning unit, including the air-out device, the air-out device is foretell air-out device.
In the above embodiment, the controller is electrically connected to the air volume detector and the driving mechanism, the controller controls the operation of the driving mechanism according to the air volume value, the air valve is driven to be matched with the air inlet so as to control the air volume, and finally the air volume adjusted by the air valve is conveyed through the air duct. Because the air volume detector is arranged at the position close to the air supply outlet and far away from the air inlet in the air duct, the air valve can not influence the flow field at the position of the air volume detector, the air flow can be ensured to flow equalized through a certain flow equalizing section, and thus the measurement precision of the air volume detector is not influenced, and the controller can more accurately control the air volume based on more accurate data.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of an overall structure of an air outlet device in the prior art;
fig. 2 is a schematic overall structure diagram of an embodiment of the air outlet device according to the present invention;
fig. 3 is a schematic control principle diagram of the air outlet device according to the present invention;
fig. 4 is a schematic structural view of an air volume detector of the air outlet device of fig. 2.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
In the prior art, the air volume measuring device is arranged close to the air inlet, and the flow field adjusted by the air valve is unstable, so that the air pressure is unstable, and the air volume data measured by the air volume measuring device through the air pressure is accurate. Further, as shown in fig. 1, in the prior art, the air volume measuring device is not only disposed close to the air inlet, but also disposed at the neck of the three-flow plate, and because the flow field at the neck of the three-flow plate is unstable, turbulence occurs, and the accuracy of the pressure test is further affected, thereby affecting the accuracy of the air volume measurement. Therefore, in the present invention, as shown in fig. 2, the air outlet device includes a box 10, an air valve 20, a driving mechanism 80, and an air volume detector 40. The box 10 is provided with an air inlet 11 and an air outlet 12 communicated with the inside of the box 10, an air duct 30 is formed in the box 10, and the air duct 30 is communicated with the air inlet 11 and the air outlet 12. The air valve 20 is movably disposed in the box 10 and located at the air inlet 11. The driving mechanism 80 is disposed in the box 10 for driving the air valve 20 to move. The air volume detector 40 is arranged in the air duct 30 and used for detecting the air volume value in the air duct 30, the air volume detector 40 is arranged in the air duct 30 at a position close to the air supply outlet 12 and far away from the air inlet 11, the controller 70 is arranged in the air duct 30 and electrically connected with the air volume detector 40 and the driving mechanism 80, and the controller 70 controls the operation of the driving mechanism 80 according to the air volume value.
By applying the technical scheme of the invention, the controller 70 is electrically connected with the air volume detector 40 and the driving mechanism 80, the controller 70 controls the operation of the driving mechanism 80 according to the air volume value, the air valve 20 is driven to be matched with the air inlet 11 so as to control the air volume, and finally the air volume adjusted by the air valve 20 is conveyed through the air duct 30. Because the air volume detector 40 is arranged in the air duct 30 close to the air supply outlet 12 and far away from the air inlet 11, the air valve 20 does not affect the flow field of the position of the air volume detector 40, and the air flow can be equalized through a certain equalizing section, so that the measurement accuracy of the air volume detector 40 is not affected, and the controller 70 can control the air volume more accurately based on more accurate data.
In addition, because the prior art does not use a Pitot tube type air quantity measuring device but adopts air duct pressure difference to measure the air quantity, the air quantity test data is not accurate. Therefore, in the technical solution of the present embodiment, as shown in fig. 2 and 4, the air volume detector 40 is a pitot tube, and the pitot tube is installed in the air duct to detect the air volume more accurately. Specifically, the Pitot tube is arranged in the air duct 30, so that the measurement is more accurate, and the air speed is more than or equal to 3m/s at the minimum air quantity; in the adjusting process of the air valve 20, the flow field distribution in the rear air duct 30 is influenced, and in order to reduce the influence, in the invention, the pitot tube is arranged at the tail end of the air duct 30, the distance between the pitot tube and the air supply outlet is 1280mm, and the distance between the pitot tube and the air inlet is 11245 mm.
Specifically, in the technical solution of the present embodiment, as shown in fig. 4, the pitot tube is composed of a static pressure measuring tube and a full pressure measuring tube. In order to ensure the test accuracy, the aperture phi of the open pore of the full-pressure pipe is measured to be 2mm, the aperture phi of the open pore of the static pressure pipe is measured to be 1.5mm, and the pitch of the pores is uniformly distributed according to the cross section size of the flow passage. Because the aperture is smaller, dust is easily gathered in the system debugging stage, and the measuring hole is blocked. For convenient maintenance, the measuring pipe is designed into an L shape, the diffuser 90 is opened, high-pressure air can be charged towards the pipe orifice of the L-shaped pipe, dust can be blown away, and the maintenance is very convenient.
Optionally, in the technical solution of this embodiment, the driving mechanism 80 is an electric push rod, and the air valve 20 is installed at an execution end of the electric push rod, so as to drive the air valve 20 in a linear motion manner to realize air volume control.
In the prior art, as shown in fig. 1, a function of adjusting air volume is realized by using a common disc type air valve, and when the disc type air valve is used in practice, two disadvantages are mainly found: firstly, when the opening of the air valve needs to be adjusted to be smaller during primary air volume adjustment, the air outlet device generates very large throttling noise at the moment, and the comfort level is influenced; secondly, the characteristics of the air valve are that the opening is smaller, the air volume changes extremely fast and the adjusting performance is extremely poor when the air valve is adjusted by 1%, when the secondary air volume is adjusted, the air valve of some terminal devices is limited in a small opening range to be adjusted, the air volume cannot be accurately adjusted, and the user experience is influenced. Preferably, in the solution of the present embodiment, a portion of the air flap 20, which is matched with the air inlet 11, is formed with a curved surface structure. Because the air valve 20 is formed with the curved surface structure, when the air valve 20 is matched with the air inlet 11, even if the air valve 20 closes the minimum air quantity, air flow can still uniformly pass through the curved surface structure, and air flow noise can not be generated. In addition, due to the existence of the curved surface structure, when the air valve 20 closes the minimum air volume, the air valve 20 can be well matched with the air inlet 11, so that the air outlet device eliminates throttling noise, accurately controls the air volume, can greatly improve the comfort of users and improve the air volume control precision under the condition of small air volume. More preferably, in the solution of this embodiment, as shown in fig. 2 and 3, the curved structure is a conical structure, and the air valve 20 with a conical structure can allow an air flow to pass more uniformly when being matched with the air inlet 11. Preferably, the air outlet device further comprises a diffuser 90, and the diffuser 90 is installed on the air supply outlet 12 to achieve uniform air supply to the indoor environment.
As shown in fig. 2 and 3, preferably, the air outlet device further includes an air volume detector 40 and a controller 70. The air volume detector 40 is arranged in the air duct 30 and used for detecting the air volume value in the air duct 30, the controller 70 is electrically connected with the air volume detector 40 and the driving mechanism 80, and the controller 70 controls the operation of the driving mechanism 80 according to the air volume value. Thus, the operation of the driving mechanism 80 can be controlled according to the detected air volume value, so as to realize more accurate control of the air volume. As shown in fig. 2, the controller 70 is disposed in the air duct 30, and the controller 70 can also be cooled by the air flow in the air duct.
Preferably, in the technical solution of the present invention, the box 10 is a sound damping box, and the air duct 30 is a sound damping channel.
Optionally, as shown in fig. 2 and fig. 3, in the technical solution of this embodiment, the air outlet device further includes a first temperature detector 60, and the first temperature detector 60 is disposed in the air duct 30 and is used for detecting an air duct temperature value in the air duct 30. When the air duct temperature controller is used, the controller 70 can be electrically connected with the first temperature detector 60, and the controller 70 also controls the operation of the driving mechanism 80 according to the air duct temperature value, so that the air volume can be controlled more accurately.
As shown in fig. 2, in the technical solution of this embodiment, the air outlet device further includes: and the heater 50 is arranged in the air duct 30, and the heater 50 is used for heating the air flow in the air duct 30 so as to realize better hot air supply of the air outlet device. Preferably, the controller 70 controls the operation of the heater 50 to automatically adjust the amount of heat supplied. More preferably, as shown in fig. 3, in the technical solution of this embodiment, the air outlet device further includes a second temperature detector 61, and the second temperature detector 61 is disposed outside the box 10 and is used for detecting an ambient temperature value. When in use, the controller 70 is also electrically connected with the second temperature detector 61, and the controller 70 controls the operation of the driving mechanism 80 according to the air duct temperature value, the environment temperature value and the air volume value. Specifically, when the air conditioner is used, a control signal of the driving mechanism 80 is connected with the controller 70, the controller 70 controls and adjusts the air volume according to the environmental temperature value collected by the second temperature detector 61, a pitot tube for measuring the air volume is arranged in an air duct behind an air valve, an electric heater is arranged at the air supply outlet 12, and the air diffuser 90 is arranged below the air supply outlet 12. The differential pressure model measured by the pitot tube in the air duct 30 is transmitted to the controller 70 through the pressure sampling tube, and the controller 70 calculates the actual air volume according to the relationship between the air volume value of the differential pressure signal and the air volume. The controller 70 reads the actual air duct temperature value and the set temperature collected by the first temperature detector 60 at any time to calculate the required air volume, compares the actual air volume value with the actual air volume value, outputs a signal to control the driving mechanism 80, and controls the actual air volume to be equal to the required air volume by adjusting the air valve 20 through the driving mechanism 80, thereby controlling the set temperature reached by the ambient temperature.
More preferably, in the solution of the present embodiment, the first temperature detector 60 is located downstream of the heater 50, so that the temperature value of the actual output airflow can be accurately measured.
The above-described electrical connection may be data connection via a signal line, or data connection via a wireless transceiver module.
Specifically, the air outlet device of the present invention has the following usage flow: when the initial air volume of the system is balanced, the opening degree of the air valve 20 is adjusted until the air volume of the whole air conditioning area is balanced, and then the air valve 20 is fixed. When the system enters into the automatic variable air volume regulation, the air valve 20 operates and regulates between the fixed valve position and the minimum valve position, and the air volume regulation is controlled by the controller 70 according to the actual temperature collected by the first temperature detector 60. The controller 70 calculates the actual output air volume according to the relation between the air volume value and the air volume of the pressure difference signal recorded in the calibration mode, meanwhile, the controller 70 calculates the required air volume of the cabin according to the actual cabin temperature and the set temperature collected by the second temperature detector 61, the required air volume of the cabin is compared with the actual output air volume, the driving mechanism 80 is controlled through the calculated output signal, the driving mechanism 80 controls the air valve 20 through adjusting the linear stroke to adjust the air volume sent into the room, the actual indoor air volume is equal to the required air volume, and therefore the purpose of controlling the indoor temperature is achieved.
It should be noted that the technical scheme of the invention is particularly suitable for buildings or ships, and the main purpose is to improve the comfort of users, the air outlet device is the most terminal product of the variable air volume system, and the noise and the accurate control of the air volume are two most important indexes for measuring the quality of the variable air volume terminal device. Therefore, the application of the air outlet device in the ship industry needs to solve the problems of noise and accurate control of air quantity besides miniaturization. When the temperature sensor is applied to the ship industry, the second temperature detector 61 can be installed in the cabin according to actual position requirements and is connected with the controller through a signal line.
The invention also provides an air conditioning unit which comprises the air outlet device. By adopting the air outlet device, the air conditioning unit can reduce noise and improve temperature control precision.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the embodiment of the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. The utility model provides an air-out device which characterized in that includes:
the air conditioner comprises a box body (10), wherein an air inlet (11) and an air supply outlet (12) communicated with the interior of the box body (10) are formed in the box body (10), an air channel (30) is formed in the box body (10), and the air channel (30) is communicated with the air inlet (11) and the air supply outlet (12);
the air valve (20) is movably arranged in the box body (10) and is positioned at the air inlet (11);
the driving mechanism (80) is arranged in the box body (10) and is used for driving the air valve (20) to move;
the air volume detector (40) is arranged in the air duct (30) and used for detecting the air volume value in the air duct (30), and the air volume detector (40) is arranged in the air duct (30) at a position close to the air supply outlet (12) and far away from the air inlet (11);
and the controller (70) is arranged in the air duct (30) and is electrically connected with the air volume detector (40) and the driving mechanism (80), and the controller (70) controls the operation of the driving mechanism (80) according to the air volume value.
2. The air outlet device of claim 1, further comprising: the first temperature detector (60) is arranged in the air duct (30) and used for detecting an air duct temperature value in the air duct (30), the controller (70) is further electrically connected with the first temperature detector (60), and the controller (70) controls the operation of the driving mechanism (80) according to the air duct temperature value.
3. The air outlet device of claim 2, further comprising: the heater (50) is arranged in the air duct (30), the heater (50) is used for heating the air flow in the air duct (30), and the controller (70) controls the operation of the heater (50).
4. The air outlet device of claim 2, further comprising: second thermodetector (61), set up outside box (10) for detect the ambient temperature value, controller (70) still with second thermodetector (61) electricity is connected, controller (70) basis wind channel temperature value ambient temperature value and the control of amount of wind value actuating mechanism (80)'s operation.
5. The air outlet device according to claim 3, wherein the first temperature detector (60) is located downstream of the heater (50).
6. The air outlet device of claim 1, wherein the air volume detector (40) is a pitot tube.
7. The air outlet device of claim 1, wherein the portion of the air valve (20) that is matched with the air inlet (11) is formed with a curved structure.
8. The air outlet device of claim 7, wherein the curved structure is a conical structure.
9. The air outlet device of claim 1, wherein the driving mechanism (80) is an electric push rod, and the air valve (20) is installed at an execution end of the electric push rod.
10. The air outlet device of claim 1, further comprising a diffuser (90), wherein the diffuser (90) is mounted on the air supply outlet (12).
11. An air conditioning unit, comprising an air outlet device, characterized in that, the air outlet device is the air outlet device of any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911013473.4A CN110645692A (en) | 2019-10-23 | 2019-10-23 | Air outlet device and air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911013473.4A CN110645692A (en) | 2019-10-23 | 2019-10-23 | Air outlet device and air conditioning unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110645692A true CN110645692A (en) | 2020-01-03 |
Family
ID=69013381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911013473.4A Pending CN110645692A (en) | 2019-10-23 | 2019-10-23 | Air outlet device and air conditioning unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110645692A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114265306A (en) * | 2021-12-24 | 2022-04-01 | 中国海洋大学 | Online wind balance control method and control system for ocean platform ventilation system |
| CN114893949A (en) * | 2022-03-31 | 2022-08-12 | 北京航天发射技术研究所 | Vehicle-mounted temperature regulating unit |
-
2019
- 2019-10-23 CN CN201911013473.4A patent/CN110645692A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114265306A (en) * | 2021-12-24 | 2022-04-01 | 中国海洋大学 | Online wind balance control method and control system for ocean platform ventilation system |
| CN114893949A (en) * | 2022-03-31 | 2022-08-12 | 北京航天发射技术研究所 | Vehicle-mounted temperature regulating unit |
| CN114893949B (en) * | 2022-03-31 | 2024-03-08 | 北京航天发射技术研究所 | Vehicle-mounted temperature adjusting unit |
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