CN111207444A - Hot air supply system and control method based on hot air supply system - Google Patents
Hot air supply system and control method based on hot air supply system Download PDFInfo
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- 230000000694 effects Effects 0.000 claims abstract description 13
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- 230000000630 rising effect Effects 0.000 abstract description 9
- 239000003570 air Substances 0.000 description 258
- 238000009423 ventilation Methods 0.000 description 13
- 238000004088 simulation Methods 0.000 description 11
- 238000004378 air conditioning Methods 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 6
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- 238000010586 diagram Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 210000004877 mucosa Anatomy 0.000 description 4
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- 230000002411 adverse Effects 0.000 description 1
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- 230000003749 cleanliness Effects 0.000 description 1
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
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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
-
- 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
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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
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
- F24F2120/12—Position of occupants
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a hot air supply system and a control method based on the hot air supply system, wherein the system comprises an induced draft pipe assembly vertically arranged at an indoor wall corner, one end of the induced draft pipe assembly is connected with an indoor unit of an air conditioner, and the other end of the induced draft pipe assembly is communicated with the indoor space; two planes of the induced duct assembly along the vertical direction are respectively parallel to two indoor walls at the corners of the indoor walls where the induced duct assembly is installed; the air blown by the air guiding pipe assembly forms at least two wall-type air supply flows along the indoor wall corner, then touches the indoor ground to form a hot air lake, and simultaneously diffuses into the whole indoor space; the outlet part of the induced draft pipe assembly is 1.1-3m away from the indoor ground. The invention solves the problem that the upper air supply mode in the prior art is difficult to supply hot air to personnel space, can directly supply the hot air to the lower part of a room with low loss and effectively inhibit the rising of hot air flow, thereby ensuring the good extending and diffusing effect of the hot air flow in the horizontal direction.
Description
Technical Field
The invention relates to the field of heating ventilation, in particular to a hot air supply system and a control method based on the hot air supply system, and is particularly suitable for residential office building spaces.
Background
In winter, a heating unit is adopted for heating, a good air flow organization needs to be established, and the form of the air flow organization is an important factor influencing the indoor ventilation and air conditioning effects of a building and determines the distribution of fresh air, cold and heat, humidity and indoor pollutant concentration fed into the building. Reasonable airflow organization should be based on consuming less energy, effectively improve indoor air quality, create comfortable hot and humid environment, and can effectively eliminate the sense of blowing at the same time.
The pattern of airflow patterns is divided into two categories: conventional mixing ventilation based on dilution principle (fig. 1); modern displacement ventilation (fig. 2) powered by buoyancy control.
The traditional mixed ventilation air conditioner based on the dilution principle has the common problem that the indoor vertical temperature gradient is too large in winter, and the head is too high in temperature and the feet are cold. Secondly, the working area of mixed ventilation is generally in the environment of return air or exhaust air, and the sanitary condition is relatively poor. Finally, the unreasonable air flow organization has poor ventilation efficiency, reduces the energy utilization rate, and is not beneficial to energy conservation.
And when the replacement ventilation is used for the hot-blast operating mode of air supply, because of the system air supply speed is lower relatively (0.1 ~ 0.3m/s), when air supply temperature is higher than ambient air temperature, the air current will rise uniformly in the active area, does not diffuse, can draw the conclusion from this: displacement ventilation can be effectively applied only when the supply air temperature is lower than the indoor air temperature.
Disclosure of Invention
The invention aims to provide a hot air supply system and a control method based on the hot air supply system, and solves the problem that in the prior art, an air supply mode is difficult to supply hot air to a personnel space. The hot air can be directly sent to the lower part of the room with low loss, the rising of hot air flow is effectively inhibited, and the good extending and diffusing effect of the hot air flow in the horizontal direction is ensured; meanwhile, the indoor air conditioner unit arranged at the corner does not need to occupy the central use space of a room, and can be combined with the corner to beautify the air pipe, so that the indoor air conditioner unit is made into a hidden unit, and the attractiveness is improved.
In order to achieve the above object, the present invention provides a hot air supply system, comprising: the air inducing pipe assembly is vertically arranged at the corner of an indoor wall, one end of the air inducing pipe assembly is connected with an indoor unit of the air conditioner, and the other end of the air inducing pipe assembly is communicated with the indoor space; two planes of the induced duct assembly along the vertical direction are respectively parallel to two indoor walls at the corners of the indoor walls where the induced duct assembly is installed; the air blown by the air guiding pipe assembly forms at least two wall-type air supply flows along the indoor wall corner, then touches the indoor ground to form a hot air lake, and simultaneously diffuses into the whole indoor space; the outlet part of the induced draft pipe assembly is 1.1-3m away from the indoor ground.
In a working state, air flow sent out by the indoor unit of the air conditioner is sent out through the air inducing pipe assembly, two wall type air supply air flows are formed along the adjacent indoor wall walls, and the wall type air supply air flows are diffused after touching the indoor ground to form a hot air lake.
Compared with the existing air-conditioning indoor unit, the air-conditioning indoor unit has the advantages that hot air is supplied in winter, and the nasal mucosa and the cavity mucosa of people are dry due to direct blowing of hot air; and because the hot air is blown out, the air directly rises to the upper part of the room, so that the temperature difference problem of the whole space is caused, namely the problem of large vertical temperature difference of the feet and the head and the feet is caused; the hot air generated by the indoor unit of the air conditioner is guided and sprayed to the indoor ground through the additionally arranged air guide pipe assembly, and meanwhile, the hot air is diffused along the indoor ground and then rises to the upper part of the indoor space, so that the temperature difference of the whole space is relatively small, and people belong to a relatively comfortable environment; the hot air lake further formed by diffusion on the indoor ground ensures the comfort of the user, is far away from the indoor unit of the air conditioner, and also enjoys good indoor environment.
The indoor air conditioner unit arranged at the corner does not need to occupy the central use space of a room, and meanwhile, the indoor air conditioner unit can be combined with the corner to beautify the air pipe, so that the indoor air conditioner unit is made into a hidden unit, and the attractiveness is improved.
In addition, an induced draft pipe assembly (with low cost) is adopted in the scheme, and the distance between the induced draft pipe assembly and the indoor ground is set to be 1.1-3m, so that a good hot air lake can be formed, the air supply height is reduced, the hot air flow is restrained from rising, and meanwhile, too much room use space is not occupied.
The indoor wall corner is formed by two adjacent indoor walls, and the two wall-type air supply airflows are formed on the surfaces of the two adjacent indoor walls.
The scheme provides a specific structure of the indoor wall corner, the specific structure is the same as or similar to the wall corner in the prior art, and the adjacent indoor walls form a wall plane of wall type air supply airflow, so that the airflow is delivered to the indoor ground, and the airflow is stable.
In a preferred embodiment of the present invention, the shaded portion of the draft tube assembly in the lateral direction is simultaneously located on two adjacent indoor walls.
The scheme provides a specific installation position of the induced draft tube assembly, namely that one part of the induced draft tube assembly is positioned in the area of one indoor wall, and the other part of the induced draft tube assembly is positioned in the area of the adjacent indoor wall.
In a preferred embodiment of the invention, the cross-sectional shape of the draft tube assembly is a sector.
The cross section of the air outlet of the air guide pipe assembly is in a quarter circle shape. Compared with rectangular and linear air supply outlets, the circular nozzle has slower speed attenuation, further slows down the speed attenuation of air supply jet flow, and inhibits the rising of hot air flow.
The cross section of the induced draft tube assembly is in a fan shape. Above-mentioned scheme has given the concrete assembly position and the relation of induced duct subassembly, because the whole indoor space is full of with the hot-blast full that the indoor set of air conditioner produced to the induced duct subassembly, because whole indoor set of air conditioner is located the corner department, so design fan-shaped shape, this fan-shaped shape matches present corner, space make full use of.
In addition, no shielding object is arranged around the induced draft tube assembly, so that the induced draft tube assembly is convenient to assemble, does not shield in the using process, and better guides the air flow to move.
In a preferred embodiment of the present invention, the induced draft tube assembly is a corrugated hose, and the corrugated hose is of a telescopic structure, so as to adjust the distance between the outlet of the induced draft tube assembly and the indoor floor.
Adopt extending structure, can adjust the distance of exit portion and indoor ground of corrugated hose according to actual need because under different space conditions, under different wind speed regulation, if reach better hot-blast diffusion efficiency, it is more crucial to adopt suitable distance.
The hot air attaching distance of the air lake region is adjusted by adjusting the height of the air supply outlet from the ground, and the relationship between the hot air attaching distance x of the air lake region and the height h of the air supply outlet is as follows: x is 10.9-2.1 h, h is from [1.1,2.4 ]](R20.99, wherein R2For determining the coefficients, a statistic that measures the fitness, R2The closer the value of (d) is to 1, the better the curve fit. )
In a preferred embodiment of the invention, a monitoring system is arranged in the indoor unit of the air conditioner, the monitoring system comprises a human body identification sensor, a controller in communication connection with the human body identification sensor, and an execution mechanism for receiving the instruction of the controller to act, and the execution mechanism is used for controlling the height h between the outlet of the corrugated hose and the indoor ground.
In a preferred embodiment of the present invention, the actuating mechanism comprises a stepping motor, a rotating bearing coupled to the stepping motor, the rotating bearing being fixedly connected to the corrugated hose; the stepping motor is operated by receiving the instruction of the driver.
The technical scheme provides a complete monitoring system structure, and the automation function of the whole product is improved.
The control method for the hot air supply system adopting the scheme is characterized by comprising the following steps:
acquiring the distance between a current user and a blowing port of an indoor unit of an air conditioner, and setting the distance as L;
acquiring the activity time of the current user in an activity area, and setting the activity time as t;
and sending the numerical values of the distance L and the time t to a controller, and dynamically adjusting the height h of an outlet of the induced draft tube assembly from the indoor ground by the controller according to the obtained values.
In a preferred embodiment of the invention, an adjustment model of the distance L and the height h is established, where h is (10.9-L)/2.1.
The adjusting model is obtained based on numerical simulation, the hot air adhesion distance x of the air lake region under different air supply heights h is obtained through simulation, the relational expression of x and h is obtained through fitting in origin software, the relational expression is x is 10.9-2.1 x h, the logic in actual use is that the distance L between a user and an air outlet of an air conditioner is the numerical value x which needs to be achieved through hot air adhesion, and therefore the air supply height h which needs to be met through the air outlet of the air conditioner is reversely pushed out according to L. The relation between L and h, namely the relation between x and h, is replaced by L, and the relation between the distance L between the current user to be controlled and the air outlet of the indoor unit of the air conditioner and the height h of the air outlet is reversely deduced to be (10.9-L)/2.1.
In a preferred embodiment of the invention, when t is>At t1, feeding back to the controller as x at the current distance L0Remember that the value of h which caused the adjustment action last time is x1When x is0<x1When the air guide pipe assembly rotates upwards, the air guide pipe assembly rotates upwards; when x is0>x1, the induced draft tube assembly translates and rotates downwards; when x is0＝x1When the air guide pipe assembly is in use, the air guide pipe assembly is kept still; when t is less than or equal to t1, the h value is not fed back to the controller.
Further, t1 takes the value of 3min < t1<5 min. Wherein t1 is 3min, or 3.5min,4min, 5min, etc., and is specifically set according to actual requirements; the purpose of setting the time is to adjust the height of the outlet of the induced draft pipe assembly from the indoor ground by matching with the controller at any time within a certain time, so that the optimal utilization of energy is better realized.
In the specific working process, human body recognition inductor 4 responds to the position x of human distance wind gap and moves time t apart from the human body last time, feed back controller (singlechip) 5 with x, the built-in procedure h of controller ═ 10.9-x)/2.1, reach the value of h and feed back the driver, driver 6 control step motor 7 rolling bearing 8, bearing 8's rotation drives corrugated hose 9's height, rotate corrugated hose 9, the adjustment supply-air outlet is for h apart from ground height, then satisfy the requirement that attached distance is x.
Specifically, the height of the corrugated hose 9 from the ground is 1.2m in a natural vertical state.
When t is>At t1, the current x is fed back to the controller 5, and is marked as x0. Noting the value of x for the last time the adjustment was initiated as x1。
When x is0<x1When the bearing 8 rotates to the left, when x0>x1When so, the bearing 8 rotates rightward; when x is0＝x1In time, the bearing 8 remains stationary. The motion of the bearing 9 drives the air guiding pipe assembly to move.
When t < t1, the x value is not fed back to the controller 5.
the value of t1 is 3min < t1<5 min.
Compared with the prior art, the invention has the beneficial effects that:
compared with the traditional top side air supply, the air conditioner has the advantages that the rising of hot air flow is favorably inhibited, the hot air of the air conditioner is furthest sent to a working area (an area where a user is located) in winter, the attaching length is longer, the problems that the hot air is difficult to be sent to feet and the vertical temperature difference of the head and the feet is large in winter are solved, meanwhile, the freshness, the oxygen content and the cleanliness of the air in the working area are ensured, the health of personnel is facilitated, and the problems that the nasal mucosa and the cavity mucosa of the personnel are dry and the like caused by the direct blowing of the hot air are.
In addition, the invention realizes the energy-saving requirement of an air supply system of the air conditioner, the coverage of the formed hot air pool is wider, the air freshness and the comfort of all working areas are ensured, and the energy consumption of the air conditioner is reduced; meanwhile, the indoor unit is placed at the corner, so that the use space in the middle of a room is saved.
Drawings
FIG. 1 illustrates a first prior art gas flow diffusion method;
FIG. 2 illustrates a second prior art airflow diffusing method;
FIG. 3A is a first schematic view of the present invention for effectively suppressing hot gas flow from rising; FIG. 3B is a second schematic diagram of the efficient hot gas flow ramp suppression of the present invention, and FIG. 3C is a third schematic diagram of the efficient hot gas flow ramp suppression of the present invention;
FIG. 4 is an assembly schematic of the system of the present invention;
FIG. 5 is a diagram of the operating state of the system of the present invention;
FIG. 6 is a schematic diagram of various parameters of the system of the present invention;
FIG. 7 is a detailed assembly structure view of the indoor air conditioner of the present invention;
FIG. 8 is a first view showing the operation state of the indoor air conditioner according to the present invention;
FIG. 9 is a second view showing the operation state of the indoor air conditioner according to the present invention;
FIG. 10 is a graph showing the relationship between the attachment distance x and the height h according to the present invention;
FIG. 11 is a graph showing the relationship between the attachment distance x and the height h according to the embodiment of the present invention;
FIG. 12 is a simulated cloud of temperature in the environment of example 4 of the present invention;
FIG. 13 is a simulated cloud of temperatures in example 4 of the present invention (no wall-forming supply airflow);
FIG. 14 is a simulated cloud of temperature in the environment of example 5 of the present invention;
FIG. 15 is a simulated cloud of temperature in the environment of example 6 of the present invention;
FIG. 16 is a simulated cloud of temperature in the environment of example 7 of the present invention;
FIG. 17 is a simulated cloud of temperature in the environment of example 8 of the present invention;
FIG. 18 is a simulated cloud of temperature in the environment of example 9 of the present invention;
fig. 19 is a simulated cloud of temperature in the environment of example 10 of the present invention.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that functional, methodological, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
A hot air supply system, comprising: the air inducing pipe assembly is vertically arranged at the corner of an indoor wall, one end of the air inducing pipe assembly is connected with an indoor unit of the air conditioner, and the other end of the air inducing pipe assembly is communicated with the indoor space; two planes of the induced duct assembly along the vertical direction are respectively parallel to two indoor walls at the corners of the indoor walls where the induced duct assembly is installed; the air blown by the air guiding pipe assembly forms at least two wall-type air supply flows along the indoor wall corner, then touches the indoor ground to form a hot air lake, and simultaneously diffuses into the whole indoor space; the outlet part of the induced draft pipe assembly is 1.1-3m away from the indoor ground.
In a working state, air flow sent out by the indoor unit of the air conditioner is sent out through the air inducing pipe assembly, two wall type air supply air flows are formed along the adjacent indoor wall walls, and the wall type air supply air flows are diffused after touching the indoor ground to form a hot air lake.
Compared with the existing air-conditioning indoor unit, the air-conditioning indoor unit has the advantages that hot air is supplied in winter, and the nasal mucosa and the cavity mucosa of people are dry due to direct blowing of hot air; and because the hot air is blown out, the air directly rises to the upper part of the room, so that the temperature difference problem of the whole space is caused, namely the problem of large vertical temperature difference of the feet and the head and the feet is caused; the hot air generated by the indoor unit of the air conditioner is guided and sprayed to the indoor ground through the additionally arranged air guide pipe assembly, and meanwhile, the hot air is diffused along the indoor ground and then rises to the upper part of the indoor space, so that the temperature difference of the whole space is relatively small, and people belong to a relatively comfortable environment; the hot air lake further formed by diffusion on the indoor ground ensures the comfort of the user, is far away from the indoor unit of the air conditioner, and also enjoys good indoor environment.
The indoor air conditioner unit arranged at the corner does not need to occupy the central use space of a room, and meanwhile, the indoor air conditioner unit can be combined with the corner to beautify the air pipe, so that the indoor air conditioner unit is made into a hidden unit, and the attractiveness is improved.
In addition, an induced draft pipe assembly (with low cost) is adopted in the scheme, and the distance between the induced draft pipe assembly and the indoor ground is set to be 1.1-3m, so that a good hot air lake can be formed, the air supply height is reduced, the hot air flow is restrained from rising, and meanwhile, too much room use space is not occupied.
As shown in fig. 3A, 3B and 3C, because the flow velocity of the air supply jet flow near the side wall is large and the static pressure is small, and the static pressure far from the side wall is large, the air supply jet flow is bent toward the side wall under the action of the pressure difference and is attached to the wall (see the following figures). Compared with mixed ventilation, the entrainment of the supply air flow to the indoor air is smaller than that of the mixed ventilation, so that the speed attenuation of the supply air flow is reduced, and the resistance effect on hot air buoyancy is stronger. In the invention, an air supply pipeline is further added, the air supply height is reduced, the entrainment quantity of the air supply jet flow is further reduced, meanwhile, the circular nozzle has slower speed attenuation relative to the rectangular and linear air supply outlets, the speed attenuation of the air supply jet flow is further slowed down, and the rising of hot air flow is inhibited.
Example 1:
referring to fig. 4 and 5, a hot wind supply system includes: the air conditioner indoor unit 3 is assembled at an indoor wall corner, an air return opening of the air conditioner indoor unit 3 is communicated with an indoor space, an air outlet 1 of the air conditioner indoor unit is assembled and connected with an air inducing pipe assembly 2, and an extension line of an outlet of the air inducing pipe assembly is perpendicular to the indoor ground; and the air blown out by the induced air pipe assembly forms at least two wall-type air supply flows along the indoor wall corner.
In a working state, air flow sent out by the indoor unit of the air conditioner is sent out through the air inducing pipe assembly, two wall type air supply air flows are formed along the adjacent indoor wall walls, and the wall type air supply air flows are diffused after touching the indoor ground to form a hot air lake.
Compared with the existing air-conditioning indoor unit, the air-conditioning indoor unit has the advantages that hot air is supplied in winter, and the nasal mucosa and the cavity mucosa of people are dry due to direct blowing of hot air; and because the hot air is blown out, the air directly rises to the upper part of the room, so that the temperature difference problem of the whole space is caused, namely the problem of large vertical temperature difference of the feet and the head and the feet is caused; the hot air generated by the indoor unit of the air conditioner is guided and sprayed to the indoor ground through the additionally arranged air guide pipe assembly, and meanwhile, the hot air is diffused along the indoor ground and then rises to the upper part of the indoor space, so that the temperature difference of the whole space is relatively small, and people belong to a relatively comfortable environment; the hot air lake further formed by diffusion on the indoor ground ensures the comfort of the user, is far away from the indoor unit of the air conditioner, and also enjoys good indoor environment.
The indoor air conditioner unit arranged at the corner does not need to occupy the central use space of a room, and meanwhile, the indoor air conditioner unit can be combined with the corner to beautify the air pipe, so that the indoor air conditioner unit is made into a hidden unit, and the attractiveness is improved.
In conclusion, the existence of the induced draft tube assembly reduces the air supply height, enhances the suppression of the rise of hot air flow and simultaneously does not occupy too much room use space.
After the air supply jet flow is attached to the wall surface, the air flow continuously flows downwards along the wall surface and extends to the ground, the adverse pressure gradient is increased, the jet flow main body is separated from the vertical wall surface, and the jet flow main body and the vertical wall surface impact the ground and then extend forwards along the floor in a radiation flow mode to form an 'air lake area'. (see FIG. 6 below)
Further, the indoor wall corner is formed by two adjacent indoor walls, and the two wall-type air supply flows are formed on the surfaces of the two adjacent indoor walls.
The scheme provides a specific structure of the indoor wall corner, the specific structure is the same as or similar to the wall corner in the prior art, and the adjacent indoor walls form a wall plane of wall type air supply airflow, so that the airflow is delivered to the indoor ground, and the airflow is stable.
Furthermore, the shadow part of the induced duct assembly 2 is simultaneously located on two adjacent indoor walls in the lateral direction.
The present solution gives a specific mounting position of the air induction pipe assembly 2, i.e. a part of the air induction pipe assembly 2 is located in the area of one indoor wall and another part of the air induction pipe assembly is located in the area of an adjacent indoor wall.
Wherein the cross section of the induced draft pipe assembly 2 is in a fan shape. Above-mentioned scheme has given the concrete assembly position and the relation of induced duct subassembly, because the whole indoor space is full of with the hot-blast full that the indoor set of air conditioner produced to the induced duct subassembly, because whole indoor set of air conditioner is located the corner department, so design fan-shaped shape, this fan-shaped shape matches present corner, space make full use of.
In addition, no shielding object is arranged around the induced draft tube assembly, so that the induced draft tube assembly is convenient to assemble, does not shield in the using process, and better guides the air flow to move.
Example 2:
the present embodiment shows a specific structure of the principle scheme of the hot air supply system as described in embodiment 1.
Referring to fig. 7, the induced draft tube assembly 2 adopts a corrugated hose 9, the corrugated hose 9 is of a telescopic structure, and the distance between the outlet part of the induced draft tube assembly and the indoor ground is adjusted to be 1.1-3 m.
Adopt extending structure, can adjust the distance of exit portion and indoor ground of corrugated hose according to actual need because under different space conditions, under different wind speed regulation, if reach better hot-blast diffusion efficiency, it is more crucial to adopt suitable distance.
Referring to fig. 10, the hot air adhesion distance in the air lake region is adjusted by adjusting the height of the air supply outlet from the ground, and the relationship between the hot air adhesion distance x in the air lake region and the height h of the air supply outlet is as follows: x is 10.9-2.1 h, h is from [1.1,2.4 ]](R20.99, wherein R2For determining the coefficients, a statistic that measures the fitness, R2The closer the value of (d) is to 1, the better the curve fit. )
Specifically, the preferred corrugated hose is 1.2m in height from the ground in its natural vertical position (see fig. 11). This distance can be used for maximum effectiveness.
Example 3:
by combining the schemes of the embodiment 1 and the embodiment 2, the embodiment provides a specific intelligent implementation scheme.
Referring to fig. 7, a monitoring system is arranged in the indoor unit of the air conditioner, and the monitoring system comprises a human body recognition sensor 4, a controller 5 in communication connection with the human body recognition sensor, and an executing mechanism for receiving an instruction of the controller 5 to act, wherein the executing mechanism is used for controlling the height h between the outlet of the corrugated hose and the indoor ground.
The actuating mechanism 6 comprises a stepping motor 7 and a rotating bearing 8 coupled with the stepping motor 7, and the rotating bearing 8 is fixedly connected with the corrugated hose 9; the stepping motor 7 is operated by the instruction of the driver.
The technical scheme provides a complete monitoring system structure, and the automation function of the whole product is improved.
Referring to fig. 8 and 9, in particular, a control method based on a hot air supply system includes:
acquiring the distance between a current user and a blowing port of an indoor unit of an air conditioner, and setting the distance as L;
acquiring the activity time of the current user in an activity area, and setting the activity time as t;
and sending the numerical values of the distance L and the time t to a controller, and dynamically adjusting the height h of an outlet of the induced draft tube assembly from the indoor ground by the controller according to the obtained values.
And establishing an adjusting model of the distance L and the height h, wherein the adjusting model h is (10.9-L)/2.1. The adjusting model is obtained based on numerical simulation, hot air attaching distances x of the air lake regions under different air supply heights h are obtained through simulation, a relational expression of x and h is obtained through fitting in origin software, and the relational expression of the distance L between the current user to be controlled and the air outlet of the air conditioner indoor unit and the height h of the air outlet is obtained through back-deducing, wherein the distance L is equal to (10.9-L)/2.1.
When t is>At t1, feeding back to the controller as x at the current distance L0Remember that the value of h which caused the adjustment action last time is x1When x is0<x1When the air guide pipe assembly rotates upwards, the air guide pipe assembly rotates upwards; when x is0>x1, the induced duct assembly rotates in translation downwards, when x0＝x1When the air guide pipe assembly is in use, the air guide pipe assembly is kept still; when t is less than or equal to t1, the h value is not fed back to the controller.
the value of t1 is 3min < t1<5min, or 3.5min,4min, 5min and the like can be selected, and the setting is specifically carried out according to the actual requirement; the purpose of setting the time is to adjust the height of the outlet of the induced draft pipe assembly from the indoor ground by matching with the controller at any time within a certain time, so that the optimal utilization of energy is better realized.
In the specific working process, human body recognition inductor 4 responds to the position x of human distance wind gap and moves time t apart from the human body last time, feed back controller (singlechip) 5 with x, the built-in procedure h of controller ═ 10.9-x)/2.1, reach the value of h and feed back the driver, driver 6 control step motor 7 rolling bearing 8, bearing 8's rotation drives corrugated hose 9's height, rotate corrugated hose 9, the adjustment supply-air outlet is for h apart from ground height, then satisfy the requirement that attached distance is x. Specifically, the corrugated hose 9 has a height of 1.2m from the ground in a natural vertical state.
When t is>At t1, feeding back to the controller as x at the current distance L0Remember that the value of h which caused the adjustment action last time is x1When x is0<x1When the air guide pipe assembly rotates upwards, the air guide pipe assembly rotates upwards; when x is0>x1, the induced duct assembly rotates in translation downwards, when x0＝x1When the air guide pipe assembly is in use, the air guide pipe assembly is kept still; when t is less than or equal to t1, the h value is not fed back to the controller. t1 is 3min<t1<5min。
Example 4:
referring to fig. 12, in the present embodiment, a numerical simulation is performed, and a room size of 12m × 12m × 2.8m, a blower size R of 0.04m, and a height of the blower from the ground of 2.8m are selected; the size of the air return inlet is 0.3m multiplied by 0.3m, the air supply speed is 3.0m/s, and the air supply temperature is 40 ℃. The attachment length was 5.0 m.
The different shaded colors in the figure represent different temperatures, and the darker the color, the lower the temperature, in the upper temperature scale in the figure. The lower graph is a simulated cloud picture (fig. 13) of mixed ventilation under the same working condition, and comparing with the embodiment of the invention, the indoor temperature is hot from top to bottom in the mixed ventilation, the invention can directly send hot air to the lower part of the room, and the temperature of the lower part of the room is higher.
Example 5:
referring to fig. 14, in the present embodiment, a numerical simulation is performed, and a room size of 12m × 12m × 2.8m, a blower size R of 0.04m, and a height of the blower from the ground of 2.4m are selected; the size of the air return inlet is 0.3m multiplied by 0.3m, the air supply speed is 3.0m/s, and the air supply temperature is 40 ℃. The attachment length was 6.0 m.
Example 6:
referring to fig. 15, in the present embodiment, a numerical simulation is performed, and a room size of 12m × 12m × 2.8m, a blower size R of 0.04m, and a height of the blower from the ground of 1.8m are selected; the size of the air return inlet is 0.3m multiplied by 0.3m, the air supply speed is 3.0m/s, and the air supply temperature is 40 ℃. The attachment length was 7.2 m.
Example 7:
referring to fig. 16, in the present embodiment, a numerical simulation is performed, and a room size of 12m × 12m × 2.8m, a blower size R of 0.04m, and a height of the blower from the ground of 1.5m are selected; the size of the air return inlet is 0.3m multiplied by 0.3m, the air supply speed is 3.0m/s, and the air supply temperature is 40 ℃. The attachment length was 8.0 m.
Example 8:
referring to fig. 17, in the present embodiment, a numerical simulation is performed, and a room size of 12m × 12m × 2.8m, a blower size R of 0.04m, and a height of the blower from the ground of 1.2m are selected; the size of the air return inlet is 0.3m multiplied by 0.3m, the air supply speed is 3.0m/s, and the air supply temperature is 40 ℃. The attachment length was 8.3 m.
Example 9:
referring to fig. 18, in the present embodiment, a numerical simulation is performed, and a room size of 12m × 12m × 2.8m, a blower size R of 0.04m, and a height of the blower from the ground of 0.6m are selected; the size of the air return inlet is 0.3m multiplied by 0.3m, the air supply speed is 3.0m/s, and the air supply temperature is 40 ℃. The attachment length was 8.0 m.
Example 10:
referring to fig. 19, in the present embodiment, a numerical simulation is performed, and a room size of 12m × 12m × 2.8m, a blower size R of 0.04m, and a height of the blower from the ground of 0.3m are selected; the size of the air return inlet is 0.3m multiplied by 0.3m, the air supply speed is 3.0m/s, and the air supply temperature is 40 ℃. The attachment length was 6.4 m.
The data are summarized according to the data related in example 4-example 10, and the table is as follows:
to sum up, the present invention solves the problem that it is difficult to supply hot air to the space of people in the upward air supply manner in the prior art according to embodiments 4 to 10. The hot air can be directly sent to the lower part of the room with low loss, the rising of hot air flow is effectively inhibited, and the good extending and diffusing effect of the hot air flow in the horizontal direction is ensured.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (11)
1. A hot air supply system, comprising:
the air inducing pipe assembly is vertically arranged at the corner of an indoor wall, one end of the air inducing pipe assembly is connected with an indoor unit of the air conditioner, and the other end of the air inducing pipe assembly is communicated with the indoor space;
two planes of the induced duct assembly along the vertical direction are respectively parallel to two indoor walls at the corners of the indoor walls where the induced duct assembly is installed; the air blown by the air guiding pipe assembly forms at least two wall-type air supply flows along the indoor wall corner, then touches the indoor ground to form a hot air lake, and simultaneously diffuses into the whole indoor space;
the outlet part of the induced draft pipe assembly is 1.1-3m away from the indoor ground.
2. The hot wind supply system according to claim 1, wherein the shaded portion of the air inducing pipe assembly in the lateral direction is simultaneously located on two adjacent indoor walls.
3. The system of claim 1, wherein the cross-sectional shape of the draft tube assembly is a sector.
4. The hot air supply system according to claim 2, wherein the air inducing pipe assembly is a bellows, and the bellows is of a telescopic structure, and the distance between the outlet of the air inducing pipe assembly and the indoor floor is adjusted.
5. The hot air supply system according to claim 2, wherein an air supply surface formed by the air outlet of the air inducing pipe assembly is larger than an air supply surface of the air outlet of the indoor air conditioner.
6. The hot air supply system according to any one of claims 1 to 5, wherein a monitoring system is provided in the indoor unit of the air conditioner, the monitoring system includes a human body recognition sensor, a controller in communication connection with the human body recognition sensor, and an actuator receiving an instruction from the controller to operate, and the actuator is configured to control a height h between an outlet of the corrugated hose and the indoor floor.
7. The hot air supply system according to claim 6, wherein the actuator comprises a stepping motor, a bearing coupled to the stepping motor, the bearing being fixedly coupled to the corrugated hose; the stepping motor is operated by receiving the instruction of the driver.
8. A control method using the hot air supply system according to any one of claims 1 to 7, comprising:
acquiring the distance between a current user and a blowing port of an indoor unit of an air conditioner, and setting the distance as L;
acquiring the activity time of the current user in an activity area, and setting the activity time as t;
and sending the numerical values of the distance L and the time t to a controller, and dynamically adjusting the height h of an outlet of the induced draft tube assembly from the indoor ground by the controller according to the obtained values.
9. A control method based on a hot-air supply system according to claim 8, characterized in that an adjustment model of distance L and height h is established, where h is (10.9-L)/2.1.
10. A control method according to claim 8 or 9, characterised in that when t is reached>At t1, feeding back to the controller as x at the current distance L0Remember that the value of h which caused the adjustment action last time is x1When x is0<x1When the air guide pipe assembly rotates upwards, the air guide pipe assembly rotates upwards; when x is0>x1, the induced draft tube assembly translates and rotates downwards; when x is0＝x1When the air guide pipe assembly is in use, the air guide pipe assembly is kept still; when t is less than or equal to t1, the h value is not fed back to the controller.
11. A control method based on a hot air supply system according to claim 10, characterized in that the value of t1 is 3min < t1<5 min.
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| CN115013869A (en) * | 2022-07-12 | 2022-09-06 | 珠海格力电器股份有限公司 | Carpet type wall hanging assembly, control method thereof and wall hanging machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115013869A (en) * | 2022-07-12 | 2022-09-06 | 珠海格力电器股份有限公司 | Carpet type wall hanging assembly, control method thereof and wall hanging machine |
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