CN108518791B - Layered air conditioner ventilation system for large-space building - Google Patents
Layered air conditioner ventilation system for large-space building Download PDFInfo
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- CN108518791B CN108518791B CN201810335828.0A CN201810335828A CN108518791B CN 108518791 B CN108518791 B CN 108518791B CN 201810335828 A CN201810335828 A CN 201810335828A CN 108518791 B CN108518791 B CN 108518791B
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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
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
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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
- F24F13/30—Arrangement or mounting of heat-exchangers
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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
- F24F9/00—Use of air currents for screening, e.g. air curtains
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Central Air Conditioning (AREA)
Abstract
The invention discloses a layered air-conditioning ventilation system for a large-space building, in particular to a layered air-conditioning ventilation system which utilizes air curtains and cold water circulation to achieve the purposes of adjusting a residence area of large-space personnel, layering middle air and discharging upper hot air, and achieves the effects of refrigerating, ventilating and saving energy in the area in the building; the invention utilizes the air curtain formed by jet flow air supply to form an isolation effect, so that a good air conditioning area can be formed in a working area, and the influence of high-speed air supply of the traditional jet flow nozzle on the working area is reduced; the air supply mode of the working area adopts the air return mode from the lower side to the upper side, so that the air supply quantity of the pipeline can be effectively reduced, compared with the traditional large-space layered air conditioner, the equipment size is reduced, the air supply airflow is uniformly distributed, an air lake can be formed in a personnel residence area, the comfort is greatly improved, and the air return type layered air conditioner is suitable for popularization and popularization of large space of a building.
Description
Technical Field
The invention belongs to the technical application field of building ventilation, and particularly relates to a layered air conditioner ventilation system which utilizes air curtains and cold water circulation to achieve uniform air flow distribution in a working area, layered middle air and energy recovery, in particular to a layered air conditioner ventilation system for a large-space building.
Background
According to classification, large-space buildings are more than 10m in height and 10000m in volume 3 Sports building, exhibition building, traffic building and industrial factory building in public building. Currently, in a large-space building environment, in consideration of building energy consumption and indoor air quality, a layered air conditioning mode is generally adopted, namely, air supply adjustment is only carried out on a residence area of personnel at the lower part of the large-space building, and air supply adjustment is not carried out on an upper spaceAnd (5) air supply. In order to better adjust the lower area of the large space, the air supply jet flow is generally required to have high speed, long air supply distance and large air supply quantity, the air supply mode of the layered air conditioner mainly comprises two types of nozzles and cyclone air openings, and the two types of air supply openings have large air speed and strong air supply sense, so that the lower area of the large space can be well adjusted, but the temperature distribution of the space in the vertical direction is uneven, the phenomenon of layering of the temperature and the humidity of the space occurs, and the accuracy and uniformity of indoor air cannot be ensured at all. In addition, the existing layered air conditioner cannot ensure that each area of the upper space achieves the effect of ventilation, and the layered air conditioner adopts the same air supply nozzle in winter and summer, so that the defects that the temperature of a people flow moving area is low and the air conditioning effect is poor and the like are caused by uneven indoor temperature field distribution due to rising of hot air flow in winter. Therefore, in view of the current situation that large-space buildings are increasingly growing, a method for solving the problem that the large-space building environment controls the temperature and the humidity of air is needed to be found.
Disclosure of Invention
(1) Technical problem to be solved
Aiming at the defects of the prior art, the technical problem to be solved by the invention is to provide a layered air conditioning ventilation system for a large-space building, which aims at the ventilation characteristics of an air conditioner in the large-space building, and achieves the effects of adjusting the residence area of large-space personnel, layering middle air and discharging upper hot air by utilizing air curtain and cold water circulation, and realizing the refrigerating, ventilating and energy saving effects of the area in the building.
(2) Technical proposal
In order to solve the technical problems, the invention provides a layered air conditioner ventilation system for a large-space building, which comprises a total air supply mechanism, an air supply and return mechanism, an air curtain mechanism, an air exhaust mechanism, a water circulation mechanism and an air duct;
the air duct comprises a total air duct, an air duct I and an air duct II, the total air duct is arranged at the top end of the building, the air duct I and the air duct II are symmetrically arranged at two sides of the building, and the total air duct is respectively communicated with the air duct I and the air duct II;
the total air supply mechanism comprises a total air valve, an air filter screen and an air blower, and the total air valve, the air filter screen and the air blower are sequentially arranged in the total air duct from left to right; the main air valve is a switch valve, can open and close the main air duct, the air filter screen is a filtering device for air, the blower is a corresponding blower device, and outdoor fresh air is provided for the ventilation system through the blower and by utilizing the main air duct.
The air supply and return mechanism comprises an air return fan I, a heat exchanger II, an air supply opening I, a heat exchanger III, an air supply opening II and an air return machine II, wherein the air supply opening I and the air supply opening II are oppositely and symmetrically arranged below the inner side of a building, the air supply opening I and the air supply opening II are 0.5-1.5m away from the ground, the heat exchanger II is positioned in an air channel I on the inner side of the air supply opening I, the heat exchanger III is positioned in an air channel II on the inner side of the air supply opening II, the air return machine I and the air return machine II are oppositely and symmetrically arranged below the inner side of the building, the air return machine I and the air return machine II are respectively positioned right above the air supply opening I and the air supply opening II, and the air return machine I and the air return machine II are respectively 3.0-4.0m away from the air supply opening I and the air supply opening II;
the air curtain mechanism comprises an air curtain machine I and an air curtain machine II which are symmetrically installed in the middle of the inner side of the building in opposite directions, the air curtain machine I and the air curtain machine II are respectively positioned right above the return air machine I and the return air machine II, and the distance between the air curtain machine I and the air curtain machine II and the return air machine I and the return air machine II is 2.0-4.0m respectively;
the water circulation mechanism comprises a nozzle I, a heat exchanger I, a water supply main pipe, a water collecting tank I, a water supply branch pipe II, a water return branch pipe I, a water return branch pipe II, a water return main pipe, a circulating water pump I, a water collecting tank II, a water collecting tank III, a circulating water pump II, a water valve I, a nozzle II, a heat exchange fin I, a water baffle I, a water valve II, a nozzle III, a heat exchange fin II and a water baffle II; the water circulation mechanisms are respectively arranged in the air duct, the nozzles I are arranged on the right side of the blower, the heat exchangers I are arranged below the nozzles I, the water collecting tanks I are arranged below the heat exchangers I, the right sides of the nozzles I are connected with the water return main pipes, the right sides of the water collecting tanks I are connected with the water supply main pipes, the lower right sides of the water supply main pipes are connected with the water supply branch pipes I, the bottoms of the water supply branch pipes I are connected with the nozzles II, the right sides of the water supply main pipes are connected with the water return branch pipes I, the right sides of the water return main pipes are connected with the water return branch pipes II, the lower sides of the water return branch pipes I are connected with the water valves I, the right sides of the water valves I are provided with water collecting tanks II, the water circulation pump I is connected to the lower right sides of the building, the left sides of the water collecting tanks II are provided with the water valves III, the water circulation pump II is connected with the water valves II, the lower sides of the water supply main pipes II are connected with the water valves II, the nozzles I are provided with the heat exchange fins, the water baffle plates I are arranged on the left sides of the heat exchange fins I, the lower sides of the water baffle plates I are arranged on the right sides of the heat exchange fins, and the heat exchange fins are arranged on the right sides of the water baffle plates II;
the air exhaust mechanism comprises an air exhaust opening I, a dryer I, an air exhaust fan I, an air exhaust opening II, a dryer II and an air exhaust fan II, wherein the air exhaust mechanism is embedded and installed on a wall body of a building, the air exhaust fan I and the air exhaust fan II are oppositely and symmetrically installed on the upper portion of the outer side of the building, the air exhaust fan I and the air exhaust fan II are respectively located right above the air curtain I and the air curtain II, the distance between the air exhaust fan I and the air curtain II is 5.0-8.0m, the upper portion of the inner side of the building is oppositely and symmetrically provided with the air exhaust opening I and the air exhaust opening II, the air exhaust opening I and the air exhaust opening II are respectively communicated with the air exhaust fan I and the air exhaust fan II, the air exhaust opening I and the air exhaust opening II are respectively located right above the air curtain I and the air curtain II, the air exhaust opening I and the air exhaust fan II are respectively located 5.0-8.0m, the dryer I is installed on the left side of the air curtain I, and the dryer II is installed on the right side of the water baffle II.
Preferably, the air outlet I and the air outlet II are double-layer shutter air outlets, the air outlet I and the air outlet II are single-layer shutter air outlets, and the air outlet I and the air outlet II are slit type grid air outlets.
Preferably, the jet wind speed of the air curtain machine I and the air curtain machine II is 5-15m/s.
Preferably, the distance between the air curtain machine I and the air return machine I is 2.0-3.0m, and the distance between the air curtain machine II and the air return machine II is 2.0-3.0m.
Preferably, the air curtain machine I and the air curtain machine II have an included angle of no more than 5 degrees with the horizontal plane.
Wherein, supply-air outlet I, supply-air outlet II, return air machine I, return air machine II, air exit I and air exit II can set up electric control valve to form coordinated control with the total blast gate, the degree of opening of each valve of automatic control.
The working principle of the technical scheme is as follows: the outdoor air enters a total air duct through a total air valve, is filtered by an air filter screen, is pressurized by an air blower, is sent into a heat exchanger I, and is subjected to indirect heat exchange with cold water sprayed by a nozzle I, at the moment, the outdoor air is initially precooled and then is divided into two parts, namely, the two parts enter the air duct I and an air duct II, the outdoor air is further cooled and then is sent into a personnel residence area through a heat exchanger II arranged in the air duct I and a heat exchanger III in the air duct II, the air sent by the air inlet I is heated in the personnel residence area, and then is partially pumped back into the air duct I by an air return machine I, is mixed with precooled air in the air duct I, and then enters the personnel residence area through the heat exchanger II and the air inlet I, so that air flow forms circulation, and an air lake adjustment area is formed in the personnel residence area; after being heated in the personnel residence area, part of air fed through the air supply opening II is pumped back into the air duct II by the air return machine II, and after being mixed with precooled air in the air duct II, the air enters the personnel residence area through the heat exchanger III and the air supply opening II, so that air flow forms circulation, and an air lake adjusting area is formed in the personnel residence area.
Meanwhile, the air curtain I and the air curtain II are arranged on the inner side of the building, an air curtain is formed in a jet flow air supply mode, cold air in a residence area of people is slowed down, and the effect of isolating the cold air is achieved.
In addition, through setting up exhaust fan I and exhaust fan II outside the building, exhaust the hot air and the polluted air in this region, the hot air pollutant in exhaust region comes from the air of air curtain region and personnel residence area, the hot air of exhaust fan I and exhaust fan II exhaust respectively with water supply branch pipe I and water supply branch pipe II send hot water effect, carry out indirect heat exchange through heat exchange fin I and heat exchange fin II, in the water catch bowl II and water catch bowl III are flowed into respectively after the hot water cooling, respectively by setting up circulating water pump I and circulating water pump II in water catch bowl II and water catch bowl III, send water back respectively in the heat exchanger I and form the water cooling circulation.
(3) Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
1. compared with the traditional large-space high-speed air supply mode, the invention adopts the low-speed air supply mode to directly supply cold air to a working area, the upper part of the air supply port is provided with the return air machine, the lower side of the air supply port supplies air to the upper side for return air, and the mode similar to the replacement ventilation can effectively reduce the air supply quantity of a pipeline, reduces the equipment size compared with the traditional large-space layered air conditioner, forms an air lake in a personnel residence area, and has the advantages of uniform air flow distribution, small vertical temperature difference and high comfort;
2. the invention utilizes the air curtain formed by jet flow air supply of the air curtain mechanism, can enable the working area to form a good air conditioning area, reduces the influence of the traditional jet flow high-speed air supply on the working area, and can play a role in isolating cold air and reduce the convection effect of the cold air in the personnel residence area and the hot air in the exhaust area;
3. according to the invention, by utilizing the characteristic that the air temperature of the exhaust area is lower than the outdoor temperature, through water cooling circulation, the warm water after precooling the air by the heat exchanger and the hot air exhausted by the exhaust fan exchange heat, so that the ventilation and energy saving effects are realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for the description of the embodiments or the prior art will be briefly described, and it is apparent that the drawings in the following description are only one embodiment of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of the ventilation system of the present invention.
Fig. 2 is a partial enlarged view of a in fig. 1.
Fig. 3 is a partial enlarged view of B in fig. 1.
The marks in the drawings are: 1-main air duct, 2-air filter, 3-blower, 4-nozzle I, 5-heat exchanger I, 6-return header, 7-water header, 8-header, 9-water header, 10-return header I, 11-exhaust fan I, 12-water valve I, 13-circulation water pump I, 14-header I, 15-air duct I, 16-air curtain I, 17-return air machine I, 18-heat exchanger II, 19-supply opening I, 20-heat exchanger III, 21-supply opening II, 22-personnel residence area, 23-return air machine II, 24-air curtain area, 25-air curtain II, 26-exhaust area, 27-header III, 28-circulation water pump II, 29-exhaust fan II, 30-return header II, 31-water header II, 32-air duct II, 33-main air valve, 34-nozzle II, 35-exhaust opening I, 36-heat exchange fin I, 37-baffle I, 38-dryer I, 39-opening II, 40-III, 41-water valve, 42-water header II, 43-heat exchanger II, 43-exhaust fan II, and 43-exhaust fan II
Detailed Description
In order that the manner in which the above-recited features, advantages, objects and advantages of the present invention are obtained will become readily apparent, a more particular description of the invention briefly summarized below may be had by reference to the embodiments thereof which are illustrated in the appended drawings, wherein it is apparent that the embodiments described are merely some, but not all, of the embodiments of the invention.
As shown in fig. 1-3, fig. 1 is a schematic structural diagram of an embodiment of the ventilation system, fig. 2 is a partial enlarged view of a in fig. 1, and fig. 3 is a partial enlarged view of B in fig. 1. The ventilation system comprises a total air supply mechanism, an air supply and return mechanism, an air curtain mechanism, an air exhaust mechanism, a water circulation mechanism and an air channel;
the air duct comprises a total air duct 1, an air duct I15 and an air duct II 32, wherein the total air duct 1 is arranged at the top end of a building, the air duct I15 and the air duct II 32 are symmetrically arranged at two sides of the building, and the total air duct 1 is respectively communicated with the air duct I15 and the air duct II 32;
the total air supply mechanism comprises a total air valve 33, an air filter screen 2 and a blower 3, wherein the total air valve 33, the air filter screen 2 and the blower 3 are sequentially arranged in the total air duct 1 from left to right; the main air valve 33 is a switch valve, and can open and close the main air duct 1, the air filter screen 2 is a filtering device for air, the blower 3 is a corresponding blower device, and outdoor fresh air is provided for the ventilation system through the blower 3 and by utilizing the main air duct 1.
The air supply and return mechanism comprises an air return fan I17, a heat exchanger II 18, an air supply opening I19, a heat exchanger III 20, an air supply opening II 21 and an air return machine II 23, wherein the air supply opening I19 and the air supply opening II 21 are oppositely and symmetrically arranged below the inner side of the building, the distance between the air supply opening I19 and the air supply opening II 21 and the ground is 0.5-1.5m, the heat exchanger II 18 is positioned in an air channel I15 inside the air supply opening I19, the heat exchanger III 20 is positioned in an air channel II 32 inside the air supply opening II 21, the air return fan I17 and the air return machine II 23 are oppositely and symmetrically arranged below the inner side of the building, the air return machine I17 and the air return machine II 23 are respectively positioned right above the air supply opening I19 and the air supply opening II 21, and the air return machine I17 and the air return machine II 23 are respectively 3.0-4.0m away from the air supply opening I19 and the air supply opening II 21;
the air curtain mechanism comprises an air curtain machine I16 and an air curtain machine II 25, the air curtain machine I16 and the air curtain machine II 25 are symmetrically installed in the middle of the inner side of a building in opposite directions, the air curtain machine I16 and the air curtain machine II 25 are respectively located right above a return air fan I17 and a return air fan II 23, the distance between the air curtain machine I16 and the air curtain machine II 25 and the return air fan I17 and the return air fan II 23 is 2.0-4.0m, the jet flow wind speed of the air curtain machine I and the air curtain machine II is 5-15m/s, the distance between the air curtain machine I and the return air machine I is 2.0-3.0m, the distance between the air curtain machine II and the return air machine II is 2.0-3.0m, and the included angle between the air flow of the air curtain machine I and the air curtain machine II and the horizontal plane is not more than 5 degrees;
the water circulation mechanism comprises a nozzle I4, a heat exchanger I5, a water supply main pipe 7, a water collecting tank I8, a water supply branch pipe I9, a water supply branch pipe II 31, a water return branch pipe I10, a water return branch pipe II 30, a water return main pipe 6, a circulating water pump I13, a water collecting tank II 14, a water collecting tank III 27, a circulating water pump II 28, a water valve I12, a nozzle II 34, a heat exchange fin I36, a water baffle I37, a water valve II 40, a nozzle III 41, a heat exchange fin II 42 and a water baffle II 43; the water circulation mechanisms are respectively arranged in the air duct, the nozzle I4 is arranged on the right side of the blower 3, the heat exchanger I5 is arranged below the nozzle I4, the water collecting tank I8 is arranged below the heat exchanger I5, the right side of the nozzle I4 is connected with the water return main pipe 6, the right side of the water collecting tank I8 is connected with the water supply main pipe 7, the lower right side of the water supply main pipe 7 is connected with the water supply branch pipe I9, the bottom of the water supply branch pipe I9 is connected with the nozzle II 34, the right side of the water supply main pipe 7 is connected with the water supply branch pipe II 31, the bottom of the water supply branch pipe II 31 is connected with the nozzle III 41, the lower right side of the water return main pipe 6 is connected with the water return branch pipe I10, the right side of the water return main pipe 6 is connected with the water return branch pipe II 30, the water valve I12 is connected to the lower portion of the water return branch pipe I10, the water collecting tank II 14 is arranged on the right side of the water valve I12, the circulating water pump I13 is installed in the water collecting tank II 14, the circulating water pump I13 is connected with the water valve I12, the water return branch pipe II 30 extends to the lower right side of a building and is connected with the water valve II 40, the water collecting tank III 27 is arranged on the left side of the water valve II 40, the circulating water pump II 28 is installed in the water collecting tank III 27, the circulating water pump II 28 is connected with the water valve II 40, the heat exchange fin I36 is installed below the nozzle II 34, the water baffle I37 is installed on the left side of the heat exchange fin I36, the heat exchange fin II 42 is installed below the nozzle III 41, and the water baffle II 43 is installed on the right side of the heat exchange fin II 42;
the exhaust mechanism comprises an exhaust outlet I35, a dryer I38, an exhaust fan I11, an exhaust outlet II 39, a dryer II 44 and an exhaust outlet II 29, wherein the exhaust mechanism is embedded in a wall body of a building, the exhaust outlet I11 and the exhaust outlet II 29 are symmetrically arranged on the upper outer side of the building in opposite directions, the exhaust outlet I11 and the exhaust outlet II 29 are respectively arranged right above the air curtain I16 and the air curtain II 25, the distance between the exhaust outlet I11 and the exhaust outlet II 29 and the air curtain I16 and the air curtain II 25 is 5.0-8.0m, the upper inner side of the building is symmetrically provided with the exhaust outlet I35 and the exhaust outlet II 39, the exhaust outlet I35 and the exhaust outlet II 39 are respectively communicated with the exhaust outlet I11 and the exhaust outlet II 29, the exhaust outlet I35 and the exhaust outlet II 39 are respectively arranged right above the air curtain I16 and the air curtain II 25, the exhaust outlet I35 and the exhaust outlet II 39 are respectively arranged 5.0-8.0m away from the air curtain I16 and the air curtain II 25, the left side of the dryer I37 is provided with a water retaining plate I43, and the water retaining plate I44 is arranged on the right side of the dryer I37. The air outlet I and the air outlet II are double-layer shutter air outlets, the air outlet I and the air outlet II are single-layer shutter air outlets, and the air outlet I and the air outlet II are slit type grid air outlets.
Wherein, supply-air outlet I, supply-air outlet II, return air machine I, return air machine II, air exit I and air exit II can set up electric control valve to form coordinated control with the total blast gate, the degree of opening of each valve of automatic control.
Example 1
When the air conditioner is operated in summer, outdoor air enters the total air duct 1 through the total air valve 33, is filtered through the air filter screen 2, is pressurized by the air blower 3, is sent into the heat exchanger I5, is subjected to indirect heat exchange with cold water sprayed by the nozzle I4, is initially precooled and then is divided into two parts, respectively enters the air duct I15 and the air duct II 32, is further cooled and then is sent into the personnel residence area 22 through the heat exchanger II 18 arranged in the air duct I15 and the heat exchanger III 20 arranged in the air duct II 32, is heated in the personnel residence area 22 through the air supply opening I19 and the air supply opening II 21, is partially pumped back into the air duct I15 through the air return machine I17, is mixed with precooled air in the air duct I15, and then enters the personnel residence area 22 through the heat exchanger II 18 and the air supply opening I19, so that air flows into circulation is formed, and an air lake adjustment area is formed in the personnel residence area 22; after being heated in the personnel residence area 22, part of air fed through the air supply opening II 21 is pumped back into the air duct II 32 by the air return fan II 23, and after being mixed with precooled air in the air duct II 32, the air enters the personnel residence area 22 through the heat exchanger III 20 and the air supply opening II 21, so that air flow forms circulation, and an air lake adjusting area is formed in the personnel residence area 22.
Meanwhile, an air curtain is formed by the air curtain machine I16 and the air curtain machine II 25 which are arranged on the inner side of the building in a jet flow air supply mode, so that cold air in the personnel residence area 22 is slowed down to enter the air curtain area 24, and the effect of isolating the cold air is achieved.
In addition, through the exhaust fan I11 and the exhaust fan II 29 which are arranged on the outer side of the building, hot air and polluted air in the area are exhausted, hot air pollutants in the exhaust area 26 come from air in the air curtain area 24 and the personnel residence area 22, hot air exhausted by the exhaust fan I11 and the exhaust fan II 29 respectively acts with hot water sent by the water supply branch pipe I9 and the water supply branch pipe II 31, indirect heat exchange is carried out through the heat exchange fin I36 and the heat exchange fin II 42, the hot water respectively flows into the water collecting tank II 14 and the water collecting tank III 27 after being cooled, and water is respectively sent back to the heat exchanger I5 to form water cooling circulation by the circulating water pump I13 and the circulating water pump II 28 which are arranged in the water collecting tank II 14 and the water collecting tank III 27.
Example 2
When in transition Ji Yun, after the blower 3, the exhaust fan I11 and the exhaust fan II 29 are started, outdoor air enters the total air duct 1 through each regulating valve, and after being filtered by the air filter screen 2, the outdoor air enters the air duct I15 and the air duct II 32 respectively after being pressurized by the blower 3, and is sent into the personnel residence area 22 through the air supply opening I19 and the air supply opening II 21 to form an air lake regulating area, hot air and pollutants from the personnel residence area 22 are discharged through the exhaust fan I11 and the exhaust fan II 29 arranged outside a building, and the ventilation mode is a replacement ventilation working mode of downward delivery and upward discharge.
Example 3
When the winter air conditioner operates, outdoor air enters the total air duct 1 through the total air valve 33, is filtered through the air filter screen 2, is pressurized by the air blower 3, is sent into the heat exchanger I5, is subjected to indirect heat exchange with hot water sprayed by the nozzle I4, is initially precooled and then is divided into two parts, respectively enters the air duct I15 and the air duct II 32, is further heated and then is sent into the personnel residence area 22 through the heat exchanger II 18 arranged in the air duct I15 and the heat exchanger III 20 arranged in the air duct II 32, is further heated and then is sent into the personnel residence area 22 through the air supply opening I19 and the air sent through the air supply opening I19, is partially pumped back into the air duct I15 through the air return machine I17 after being cooled in the personnel residence area 22, is mixed with precooled air in the air duct I15, and then enters the personnel residence area 22 through the heat exchanger II 18 and the air supply opening I19, so that air flows form circulation and an air lake adjustment area is formed in the personnel residence area 22; after the air sent in through the air supply opening II 21 is cooled in the personnel residence area 22, part of the air is pumped back into the air duct II 32 by the air return fan II 23, mixed with the preheated air in the air duct II 32, and then enters the personnel residence area 22 through the heat exchanger III 20 and the air supply opening II 21, so that air flow forms circulation, and an air lake adjusting area is formed in the personnel residence area 22.
Meanwhile, through the air curtain machine I16 and the air curtain machine II 25 which are arranged on the inner side of the building, an air curtain is formed in a high-speed jet air supply mode, hot air in the personnel residence area 22 is slowed down to enter the air curtain area 24, and the effect of isolating the hot air is achieved.
In addition, cold air and pollutants from the air curtain area 24 and the personnel residence area 22 are discharged through the exhaust fan I11 and the exhaust fan II 29 which are arranged on the outer side of the building, hot air discharged by the exhaust fan I11 and the exhaust fan II 29 is respectively subjected to direct heat exchange with the heat exchange fins I36 and the heat exchange fins II 42, hot water flows into the water collecting tank II 14 and the water collecting tank III 27 after being heated, and water is respectively returned to the heat exchanger I by the circulating water pump I and the circulating water pump II 28 which are arranged in the water collecting tank II 14 and the water collecting tank III 27 to form hydrothermal circulation.
Having described the main technical features and fundamental principles of the present invention and related advantages, it will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The above detailed description is, therefore, to be taken 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.
Furthermore, it should be understood that although the present disclosure describes embodiments in terms of various embodiments, not every embodiment is described in terms of a single embodiment, but rather that the descriptions of embodiments are merely provided for clarity, and that the descriptions of embodiments in terms of various embodiments are provided for persons skilled in the art on the basis of the description.
Claims (5)
1. The layered air conditioning ventilation system for the large-space building is characterized by comprising a total air supply mechanism, an air supply and return mechanism, an air curtain mechanism, an air exhaust mechanism, a water circulation mechanism and an air duct;
the air duct comprises a total air duct (1), an air duct I (15) and an air duct II (32), wherein the total air duct (1) is arranged at the top end of a building, the air duct I (15) and the air duct II (32) are symmetrically arranged at two sides of the building, and the total air duct (1) is respectively communicated with the air duct I (15) and the air duct II (32);
the total air supply mechanism comprises a total air valve (33), an air filter screen (2) and a blower (3), wherein the total air valve (33), the air filter screen (2) and the blower (3) are sequentially arranged in the total air duct (1) from left to right;
the air supply and return mechanism comprises an air return fan I (17), a heat exchanger II (18), an air supply opening I (19), a heat exchanger III (20), an air supply opening II (21) and an air return machine II (23), wherein the air supply opening I (19) and the air supply opening II (21) are symmetrically arranged below the inner side of a building in opposite directions, the air supply opening I (19) and the air supply opening II (21) are 0.5-1.5m away from the ground, the heat exchanger II (18) is positioned in an air duct I (15) on the inner side of the air supply opening I (19), the heat exchanger III (20) is positioned in an air duct II (32) on the inner side of the air supply opening II (21), the air return fan I (17) and the air return machine II (23) are symmetrically arranged below the inner side of the building in opposite directions, the air return machine I (17) and the air return machine II (23) are respectively positioned right above the air supply opening I (19) and the air supply opening II (21), and the air return machine II (23) are respectively 3.0-4.0m away from the air supply opening I (19) and the air supply opening II (21);
the air curtain mechanism comprises an air curtain machine I (16) and an air curtain machine II (25), the air curtain machine I (16) and the air curtain machine II (25) are symmetrically installed in the middle of the inner side of the building in opposite directions, the air curtain machine I (16) and the air curtain machine II (25) are respectively positioned right above the return air machine I (17) and the return air machine II (23), and the distance between the air curtain machine I (16) and the air curtain machine II (25) is 2.0-4.0m respectively from the return air machine I (17) and the return air machine II (23);
the water circulation mechanism comprises a nozzle I (4), a heat exchanger I (5), a water supply main pipe (7), a water collecting tank I (8), a water supply branch pipe I (9), a water supply branch pipe II (31), a water return branch pipe I (10), a water return branch pipe II (30), a water return main pipe (6), a circulating water pump I (13), a water collecting tank II (14), a water collecting tank III (27), a circulating water pump II (28), a water valve I (12), a nozzle II (34), a heat exchange fin I (36), a water baffle I (37), a water valve II (40), a nozzle III (41), a heat exchange fin II (42) and a water baffle II (43); the water circulation mechanism is respectively arranged in the air duct, the nozzle I (4) is arranged on the right side of the air blower (3), the heat exchanger I (5) is arranged below the nozzle I (4), the water collecting tank I (8) is arranged below the heat exchanger I (5), the right side of the nozzle I (4) is connected with the water return manifold (6), the water supply manifold (7) is connected on the right side of the water collecting tank I (8), the water supply manifold (7) is connected with the water supply branch pipe I (9) on the right lower side, the nozzle II (34) is connected on the bottom of the water supply branch pipe I (9), the water supply manifold (7) is connected with the water supply branch pipe II (31) on the right side, the nozzle III (41) is connected on the bottom of the water supply branch pipe II (31), the right lower side of the water return manifold (6) is connected with the water return branch pipe I (10), the right side of the water return manifold (6) is connected with the water return branch pipe II (30), the lower side of the water return branch pipe I (10) is connected with the water valve I (12), the right side of the water valve I (12) is provided with the water collecting tank II (14), the water circulating pump I (13) is arranged in the water tank II (14), the right side is connected with the water valve II (13) and the water valve I (13) is connected with the water valve II (40) on the right side of the water valve II (40), a circulating water pump II (28) is arranged in the water collecting tank III (27), the circulating water pump II (28) is connected with a water valve II (40), a heat exchange fin I (36) is arranged below the nozzle II (34), a water baffle I (37) is arranged on the left side of the heat exchange fin I (36), a heat exchange fin II (42) is arranged below the nozzle III (41), and a water baffle II (43) is arranged on the right side of the heat exchange fin II (42);
the exhaust mechanism comprises an exhaust outlet I (35), a dryer I (38), an exhaust fan I (11), an exhaust outlet II (39), a dryer II (44) and an exhaust fan II (29); the exhaust mechanism is embedded and installed on a wall body of a building, the exhaust fan I (11) and the exhaust fan II (29) are installed on the upper portion of the outer side of the building in a symmetrical mode in the opposite direction, the exhaust fan I (11) and the exhaust fan II (29) are located right above the air curtain I (16) and the air curtain II (25) respectively, the exhaust fan I (11) and the exhaust fan II (29) are 5.0-8.0m away from the air curtain I (16) and the air curtain II (25) respectively, the upper portion of the inner side of the building is symmetrically provided with the exhaust opening I (35) and the exhaust opening II (39) in the opposite direction, the exhaust opening I (35) and the exhaust opening II (39) are communicated with the exhaust fan I (11) and the exhaust fan II (29) respectively, the exhaust opening I (35) and the exhaust opening II (39) are located right above the air curtain I (16) and the air curtain II (25) respectively, the exhaust opening I (35) and the exhaust opening II (39) are located right above the air curtain II (25) respectively, the air curtain I (16) and the air curtain II (25) are 5.0-8.0m away from the air curtain II (25), and the water blocking plate I (38) is installed on the right side of the building, and the dryer (43) is installed on the right side of the wall.
2. The large-space building layered air conditioner ventilation system according to claim 1, wherein the air outlets of the air supply outlet I (19) and the air supply outlet II (21) are double-layer louver air outlets, the air outlets of the air outlet I (35) and the air outlet II (39) are single-layer louver air outlets, and the air outlets of the air curtain I (16) and the air curtain II (25) are slit type grid air outlets.
3. The layered air conditioning ventilation system of large space building according to claim 1, characterized in that the jet wind speed of the air curtain machine i (16) and the air curtain machine ii (25) is 5-15m/s.
4. A large space building layered air conditioning ventilation system according to claim 1 characterized in that the distance of air curtain machine i (16) from air return machine i (17) is 2.0-3.0m and the distance of air curtain machine ii (25) from air return machine ii (23) is 2.0-3.0m.
5. The layered air conditioning ventilation system of large space building according to claim 1, characterized in that the air flow of air curtain machine i (16) and air curtain machine ii (25) is at an angle of not more than 5 ° to the horizontal.
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| CN201810335828.0A CN108518791B (en) | 2018-04-16 | 2018-04-16 | Layered air conditioner ventilation system for large-space building |
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| CN201810335828.0A CN108518791B (en) | 2018-04-16 | 2018-04-16 | Layered air conditioner ventilation system for large-space building |
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| CN108518791B true CN108518791B (en) | 2023-08-01 |
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| CN110195904A (en) * | 2019-06-04 | 2019-09-03 | 南京冠福建设工程技术有限公司 | A kind of wall type Fresh air handing unit |
| US20230167987A1 (en) * | 2021-12-01 | 2023-06-01 | Carrier Corporation | Airborne contaminant abatement systems and methods |
| CN114576760B (en) * | 2022-02-16 | 2023-07-14 | 中国航空规划设计研究总院有限公司 | High-large space composite air supply system and control method thereof |
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| WO2017005155A1 (en) * | 2015-07-09 | 2017-01-12 | 中建钢构有限公司 | Double-layer heat-insulated and ventilated skin structure for external building wall |
| CN208042408U (en) * | 2018-04-16 | 2018-11-02 | 江西理工大学 | A kind of volumed space building energy-saving ventilation system |
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| CN1579579A (en) * | 2004-05-21 | 2005-02-16 | 南京工业大学 | centrifugal fire smoke-proof air curtain |
| WO2006000159A1 (en) * | 2004-06-27 | 2006-01-05 | Xuejun Yin | A curtain wall for door and window and an air conditioning apparatus appying the same |
| KR100652146B1 (en) * | 2005-07-30 | 2006-12-01 | 한양대학교 산학협력단 | Building ventilation system |
| CN102494383A (en) * | 2011-12-20 | 2012-06-13 | 青岛海信房地产股份有限公司 | Method for ventilating and dehumidifying underground garage |
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