CN112228958A - Central air-conditioning process system suitable for tall and large space - Google Patents
Central air-conditioning process system suitable for tall and large space Download PDFInfo
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- CN112228958A CN112228958A CN202011098252.4A CN202011098252A CN112228958A CN 112228958 A CN112228958 A CN 112228958A CN 202011098252 A CN202011098252 A CN 202011098252A CN 112228958 A CN112228958 A CN 112228958A
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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
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
- F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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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
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/0236—Ducting arrangements with ducts including air distributors, e.g. air collecting boxes with at least three openings
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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
- F24F13/28—Arrangement or mounting of filters
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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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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
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- Fluid Mechanics (AREA)
- Central Air Conditioning (AREA)
Abstract
The invention relates to a central air-conditioning process system suitable for a tall space, which adopts a cold air supply mode at the upper part of a factory building and a bottom air return mode in summer; when hot air is supplied in winter, the air supply and return air pipes are switched by adjusting the bypass valve on the air pipes, so that the bottom air supply mode and the top air return mode are adopted in winter, thus the air flow of a plant can be facilitated no matter cold air is supplied in summer or hot air is supplied in winter, and a better cooling or heating effect is achieved. And only a bypass air valve is added to the main air pipe, and switching of high-altitude air supply, low-altitude air return, low-altitude air supply and high-altitude air return is realized by adjusting the bypass air valve. Meanwhile, when a fire disaster or dense smoke exists in the factory building, the air conditioner of the central air conditioning system stops running, the air inlet valve and the air return valve of the air conditioner are closed, and the smoke exhaust fan is started, so that the smoke exhaust function of the air pipe can be realized, and the investment cost is saved.
Description
Technical Field
The invention belongs to the technical field of central air conditioners, and particularly relates to a central air conditioner process system suitable for a tall space.
Background
The industrial enterprise factory building space is great, generally adopts central air conditioning to send cold wind or hot-blast temperature regulation factory building in, but general air supply mode all is eminence air supply, low back air mode, and from factory building top cold wind or hot-blast, return air from the factory building bottom promptly. The air supply mode is suitable for supplying cool air in summer, and the cool air is easy to sink due to the fact that the density of the cool air is larger than that of the air, so that convection of the air in a factory building is facilitated, and the temperature can be rapidly reduced. However, the temperature of hot air is high in winter, the density is smaller than the air density, the hot air is arranged at the top of the factory building, the distance between the feeding port and the outlet is higher than the ground due to the fact that the factory building space is larger, the hot air is gathered at the top of the factory building, the temperature of the top of the factory building is high, the temperature of the bottom of the factory building is low, air convection is not facilitated, temperature rise in the.
Disclosure of Invention
The invention aims to provide a central air-conditioning process system suitable for a tall space, which solves the problem that the temperature regulation of the central air-conditioning is not good in winter and summer.
The invention is realized by the following technical scheme:
a central air conditioning process system suitable for tall spaces comprises:
the air conditioner at least comprises a blower and a return fan; the air outlet of the air feeder is connected with an air distribution pipeline above the plant through an air feeding pipeline;
the air distribution pipeline comprises a first air pipe and a second air pipe; a first inlet and outlet with a downward opening and a second inlet and outlet with an upward opening are communicated with the first air pipe; the second air pipe is communicated with a third air pipe vertically arranged in the plant, and a third inlet and a third outlet are formed in the lower end of the third air pipe; the third air pipe is connected with an air return inlet of the air return fan through an air return pipeline;
the smoke exhaust fan system is connected with a return air inlet of the return fan through an exhaust pipeline, a fresh air inlet is formed in one end of the return fan, and an air outlet of the return fan corresponds to an air inlet of the air feeder; a surface air cooler and a heater are arranged between the air outlet of the air return fan and the air inlet of the air feeder;
the refrigerator is communicated with the surface cooler through a pipeline;
the boiler is communicated with the heater through a pipeline;
a first communication pipeline and a second communication pipeline are arranged between the air supply pipeline and the air return pipeline;
the air supply pipeline is provided with a first air valve on the air supply pipeline close to the air outlet of the air feeder, the air supply pipeline between the first communication pipeline and the second communication pipeline is provided with a second air valve, the first communication pipeline is provided with a third air valve, the second communication pipeline is provided with a fourth air valve, the air return pipeline between the first communication pipeline and the second communication pipeline is provided with a fifth air valve, the air return pipeline is provided with a sixth air valve close to the air return port, the exhaust pipeline is provided with a seventh air valve, the second inlet and outlet is provided with an eighth air valve, and the fresh air port is provided with a ninth air valve.
Preferably, in the air conditioner, a filtering section is arranged between the blower and the return fan and used for filtering mixed gas of fresh air and return air.
Preferably, the smoke exhaust fan system comprises a clerestory, a smoke exhaust fan and a filter screen, wherein the smoke exhaust fan is arranged in the clerestory, the filter screen is arranged at an air outlet of the clerestory, and the air exhaust pipeline is communicated with the clerestory.
Preferably, the refrigerator is connected with the surface cooler through a chilled water pipeline and a chilled water return pipeline.
Preferably, the boiler is connected to the heater through a steam pipe and a condensed water return pipe.
Preferably, the central air-conditioning process system comprises a summer cold air supply system, a winter hot air supply system, a single smoke exhaust system and a smoke exhaust fresh air system;
in the summer cold air supply system, the third air valve, the fourth air valve and the seventh air valve are closed, the first air valve, the second air valve, the fifth air valve and the sixth air valve are opened, and cold air of the refrigerator passes through the surface air cooler and the air outlet of the air feeder and then sequentially enters the air supply pipeline, the first air pipe and the first inlet and outlet to enter a plant; the return air in the plant is returned to the air return machine through a third inlet and outlet, a third air pipe, a second air pipe, an air return pipeline and an air return inlet of the air return machine in sequence;
in the winter hot air supply system, the second air valve and the fifth air valve are closed, the rest air valves are opened, and hot air heated by the boiler and the heater passes through an air outlet of the air feeder and then sequentially passes through the air supply pipeline, the first communicating pipeline, the second air pipe, the third air pipe and the third inlet and outlet to enter a plant; the return air returns to the air return machine through the first inlet and outlet, the first air pipe, the second communicating pipeline, the return air pipeline and the return air inlet of the air return machine in sequence;
in the single smoke exhaust system, the air conditioner stops running, the first air valve, the second air valve, the third air valve and the sixth air valve are closed, the smoke exhaust fan is started, and smoke below the inside of the plant is exhausted to the outside through the smoke exhaust fan system after passing through the third inlet and outlet, the third air pipe, the second air pipe, the return air pipeline and the exhaust air pipeline in sequence; meanwhile, the flue gas above the inside of the plant is exhausted out of the room through a smoke exhaust fan system after sequentially passing through the first inlet and outlet, the first air pipe, the air supply pipeline, the second communication pipeline, the air return pipeline and the exhaust pipeline;
in the smoke exhaust fresh air system, the air conditioner and the smoke exhaust fan system are started, the second air valve, the fifth air valve and the sixth air valve are closed, the rest air valves are opened, and smoke in a factory building is exhausted to the outside through the smoke exhaust fan system after sequentially passing through the first inlet and the first air pipe, the second communicating pipeline, the return air pipeline and the smoke exhaust pipeline; meanwhile, fresh air passes through the air outlet of the air feeder and then sequentially passes through the air supply pipeline, the first communicating pipeline, the second air pipe, the third air pipe and the third inlet and outlet and then enters the plant.
Preferably, in the summer cool air supply system, the set amount of return air is discharged to the outside after entering the smoke exhaust fan system through a seventh air valve and an exhaust pipeline before entering the return air inlet of the return fan.
Preferably, in the smoke exhaust fresh air system, the system further comprises a refrigerator which is started and used for cooling the fresh air entering through the fresh air inlet and then entering the plant.
The invention has the beneficial effects that:
according to the characteristics of cold air and hot air, the system realizes a cold air supply mode at the upper part of a factory building in summer and a bottom air return mode; when hot air is supplied in winter, the mode of bottom hot air supply and top return air is adopted by adjusting a bypass valve on an air pipe. Therefore, the air flow of the plant can be facilitated no matter the cool air is sent in summer or the hot air is sent in winter, and a better cooling or heating effect is achieved. And when dense smoke or fire danger exists in the factory building, the air supply and return system can play a smoke exhaust role and enhance the smoke exhaust effect.
Drawings
FIG. 1 is a process flow diagram of a cooling air supply system in summer;
FIG. 2 is a process flow diagram of a winter hot air supply system;
FIG. 3 is a process flow diagram of a single row fume system;
FIG. 4 is a process flow diagram of a smoke exhaust and fresh air system.
Detailed Description
The technical solutions of the present invention are described in detail below by examples, and the following examples are only exemplary and can be used only for explaining and explaining the technical solutions of the present invention, but not construed as limiting the technical solutions of the present invention.
The application provides a central air conditioning process systems who is fit for tall and big space, includes:
the air conditioner at least comprises an air feeder and a return air fan, a heater, a surface cooler and a filtering section are arranged between the air feeder and the return air fan, a fresh air pipe is arranged at one end (the end far away from the air feeder) of the return air fan, a ninth air valve and a filter screen are arranged on the fresh air pipe, the outer side of the fresh air pipe is a fresh air inlet, a return air inlet is arranged on the side surface of the return air fan, and a sixth air valve is arranged at the position of the return air inlet.
The refrigerator is connected with the surface cooler through a chilled water pipeline and a chilled water return pipeline, and a chilled water electric valve is arranged on the chilled water pipeline.
The boiler is connected with the heater through a steam pipeline and a condensate water return pipeline, and a steam electric valve is arranged on the steam pipeline.
The air outlet of the air feeder is provided with a reducing pipe, one end of the air feeding pipeline is connected with the reducing pipe, the other end of the air feeding pipeline is connected with the first air pipe, and the air feeding pipeline is respectively provided with a first air valve and a second air valve.
And the air return inlet of the air return fan is positioned at the outer side of the outlet of the sixth air valve and is respectively connected with an air return pipeline and an air exhaust pipeline which are of a three-way structure together, the air exhaust pipeline is provided with a seventh air valve, and the air return pipeline is provided with a fifth air valve.
One end of the first communicating pipeline is communicated with an air supply pipeline between the first air valve and the second air valve, the other end of the first communicating pipeline is communicated with an air return pipeline between the fifth air valve and the second air pipe, and the first communicating pipeline is provided with a third air valve.
One end of the second communicating pipeline is communicated with the air supply pipeline between the second air valve and the first air pipe, the other end of the second communicating pipeline is communicated with the air return pipeline between the air return pipeline and the sixth air valve, and the second communicating pipeline is provided with a fourth air valve.
The smoke exhaust fan system comprises a clerestory, a smoke exhaust fan and a filter screen, wherein the smoke exhaust fan is arranged in the clerestory, the filter screen is arranged at an air outlet of the clerestory, and the smoke exhaust pipeline is communicated with the clerestory.
The first air pipe is communicated with a plurality of first inlets and outlets with downward openings and a plurality of second inlets and outlets with upward openings; the second air pipe is communicated with a plurality of third air pipes vertically arranged in the plant, the lower end of each third air pipe is provided with a third inlet and outlet, and an eighth air valve is arranged on each second inlet and outlet.
The central air conditioning process system comprises a summer cool air supply system, a winter hot air supply system, a single-row smoke system and a smoke exhaust fresh air system.
Outdoor fresh air enters the air conditioner 5 through the fresh air inlet 1 and the filter screen 2 and then enters the air conditioner through the fresh air pipe 3 and the ninth air valve 4 to be mixed with return air.
As shown in fig. 1, in summer, the third air valve 21 and the fourth air valve 55 are closed, and when the cool air is sent, the cool air is conveyed by the blower 15, passes through the reducing pipe 17 and the first air valve 18, enters the first air pipe 24 through the second air valve 56, and then enters the plant from the lower part of the ceiling 45 at the top of the plant to cool the plant through the oblique angle 29, the air pipe 30, the first inlet/outlet 31, the oblique angle 33, the air pipe 34, the first inlet/outlet 35, the oblique angle 38, the air pipe 39 and the first inlet/outlet 40. The joints of the air pipes 30, 34, 39 and the first air pipes 24 are provided with oblique angles 29, 33 and 38, which are favorable for turning the branch air pipes along the air supply direction, and the oblique angles correspond to the air pipe joints on the other side and are right angles, so that only partial air of the main air pipe is favorable for entering the branch air pipes, and the air quantity of the branch air pipes which are the closest distance from the air conditioner is avoided being too large.
Under the action of the air returning fan 6, the air in the factory building enters the third air duct 47 from the third lower inlet/outlet 48, enters the third air duct 50 from the third inlet/outlet 51, and enters the third air duct 52 from the third inlet/outlet 53, wherein some of the third air duct and the third inlet/outlet can be installed along the wall or the pillar, for example, the third air duct 50 and the third inlet/outlet 51 are installed along the indoor pillar 49. Then, the return air in the third air duct 47, the third air duct 49 and the third air duct 52 enters the second air duct 25, the right side of the joint of the third air duct 47, the third air duct 50 and the third air duct 52 with the second air duct 25 respectively forms an oblique angle 43, an oblique angle 32 and an oblique angle 26 along the return air direction, and the air duct joint on the other side is a right angle, so that the return air can flow in a certain direction, and the resistance of the air can be reduced. The return air in the second air duct 25 sequentially enters the return air pipeline 16 through the fifth air valve 23, enters the air conditioner 5 through the return air pipeline 8 and the sixth air valve 7, is mixed with the fresh air, is filtered by the filtering section 65 under the action of the return air fan 6, is cooled by the surface air cooler 58, enters the tail end of the air conditioner 5 through the heater 57, is sent into the factory building through the air feeder 15, and is circulated repeatedly and continuously. In addition, a small amount of return air enters the clerestory 11 through the seventh air valve 9 and the exhaust pipeline 10 and is exhausted out of the room through the exhaust outlet 13. In summer, the heater 58 does not feed steam, so the air is not heated, the chilled water of the refrigerator 66 enters the surface cooler 58 through the chilled water pipeline 60, the chilled water pipeline 64 and the chilled water electric valve 61 to cool the air, and the chilled water after being heated flows back to the refrigerator 66 through the chilled water return pipeline 68.
As shown in fig. 2, when hot air is sent in winter, the second air valve 56 and the fifth air valve 23 are closed, the other air valves are opened, and the opening degree of the air valves is adjusted according to the temperature in the plant, the amount of returned air, the size of discharged air and the use requirement of fresh air. Outdoor fresh air enters the air conditioner 5 through the fresh air inlet 1 and the filter screen 2 and then enters the air conditioner 5 through the fresh air pipe 3 and the ninth air valve 4 to be mixed with return air. After being filtered by the filtering section 65 and heated by the heater 57, hot air is conveyed by the blower 15, then passes through the reducing section 17, the air pipe 19 of the first air valve 18, the turning section 20, the third air valve 21 and the first communication pipe 22, enters the second air pipe 25, and after being conveyed to a workshop by the second air pipe 25, is respectively conveyed to the lower part of the workshop by the bevel angle 26, the air pipe 52, the third inlet and outlet 53, the bevel angle 32, the air pipe 50, the third inlet and outlet 51, the bevel angle 43, the air pipe 47 and the third inlet and outlet 48, so that the downward hot air conveying is realized. Under the action of the air return fan 6, air with relatively low temperature at the top of the factory building enters the first air pipe 24 through the first inlet and outlet 40, the air pipe 39, the oblique angle 38, the first inlet and outlet 35, the air pipe 34, the oblique angle 33, the first inlet and outlet 31, the air pipe 30 and the oblique angle 29 respectively, return air in the first air pipe 24 enters the return air pipeline 16 through the second communicating pipe 54 and the fourth air valve 55, part of the return air in the return air pipeline 16 enters the air conditioner 5 through the return air pipeline 8 and the sixth air valve 7 to be mixed with a small amount of fresh air, is heated by the heater 57 again and then is conveyed into the factory building through the air feeder, in addition, a small amount of the return air enters the air building 11 through the seventh air valve 9 and the exhaust pipeline 10 and then is exhausted out of the room through the exhaust outlet 13, and the filter screen 14. The circulation is repeated continuously, so that hot air is delivered to the lower part of the plant in winter, and the air return mode is adopted, so that the air convection of the plant is facilitated, the temperature is balanced, and the energy is saved. Meanwhile, part of return air is discharged, and a small amount of fresh air enters, so that the fresh air of a workshop is facilitated, and the comfort level is improved. In winter, steam enters the air conditioner internal heater 57 from the boiler 67 through the steam pipeline 63, the steam electric valve 62 and the steam pipeline 59 to heat air in the air conditioner. In winter, the refrigerator stops running, the chilled water does not enter the surface cooler 58 any more, and the surface cooler does not play a cooling role in winter.
The first air duct and the second air duct of the factory building are both arranged in an interlayer 42 between the ceiling 45 and the roof 41, the first inlet and outlet 31, the first inlet and outlet 35 and the first inlet and outlet 40 are opened on the ceiling and are basically flush with the ceiling, and the third inlet and outlet 48, the third inlet and outlet 51 and the third inlet and outlet 53 are arranged at the bottom of the factory building. If construction work is performed above the suspended ceiling 45, cold air or hot air can be supplied to the suspended ceiling through the eighth air valve 37, the second inlet/outlet 36, the eighth air valve 28 and the second inlet/outlet 27, and the eighth air valve 37 and the eighth air valve 28 are closed in branch circuits at ordinary times.
Meanwhile, the air pipe in the factory building is made of high-temperature-resistant materials, and the air pipe can have the smoke exhaust effect.
As shown in fig. 3, if there is a dense smoke or a fire in the factory building, and only smoke needs to be discharged, the air conditioner 5 is automatically stopped, the fan is also stopped, the sixth air valve 7 and the first air valve 18 are closed, the air conditioner 5 is isolated from the factory building 46, and the third air valve 21 and the second air valve 56 are also closed. The smoke exhaust fan 12 is started to operate, and the smoke in the factory building enters the second air duct 25 through the third inlet and outlet 48, the third air duct 47, the third inlet and outlet 51, the third air duct 50, the third inlet and outlet 53 and the third air duct 52, and then enters the return air duct 16. Meanwhile, the flue gas at the top of the factory building enters the first air duct 24 through the first inlet/outlet 40, the air duct 39, the first inlet/outlet 35, the air duct 34, the first inlet/outlet 31 and the air duct 30, a relatively independent closed space is formed between the roof 41 and the wall 44 at the upper part of the ceiling 45, the flue gas therein can also enter the first air duct 24 through the second inlet/outlet 36, the eighth air valve 37, the second inlet/outlet 27 and the eighth air valve 28, the flue gas in the first air duct 24 enters the return air duct 16 through the second communicating pipeline 54 and the fourth air valve 55, the flue gas in the return air duct 16 enters the air building 11 through the seventh air valve 9 and the exhaust pipeline 10, and is blown out of the room from the exhaust outlet 13 through the smoke exhaust fan 12. Therefore, the upper inlet and the lower inlet in the plant can exhaust the smoke of the plant at the same time, and the air pipe not only plays a smoke exhaust role, but also can increase the smoke exhaust amount, and exhaust the smoke more quickly and thoroughly. A temperature sensor is arranged in the air pipe, when the temperature of the flue gas is extremely high, the temperature sensor sends a signal, a seventh air valve 9 and the like are closed, and a smoke exhaust fan 12 stops running and stops discharging the smoke.
As shown in figure 4, if only there is dense smoke and there is no naked light in the factory building, need to discharge fume and send the new trend again and let the rescue personnel or detain personnel and breathe, need discharge fume this moment and need send new trend again, because the flue gas is walked toward the eminence, personnel often are in the factory building low again, consequently adopt the eminence to discharge fume, the low fresh air mode of sending is located. If the indoor temperature is higher, the refrigerator 66 can even be opened, the fresh air is cooled by the surface cooler 58, that is, the sixth air valve 7 is closed, the second air valve 56 is closed, the fifth air valve 23 is closed, the outdoor fresh air enters the air conditioner 5 through the fresh air pipe 3 and the ninth air valve 4 after passing through the fresh air port 1 and the filter screen 2, is filtered by the filter section 65, is cooled by the surface cooler 58, is sent into the plant through the blower 15, is conveyed by the blower 15, enters the second air pipe 25 through the reducing diameter 17, the first air valve 18, the air supply pipeline 19, the third air valve 21 and the first connecting pipeline 22, is discharged from the third inlet and outlet 53 at the lower part of the plant through the third air pipe 52, is discharged from the third inlet and outlet 51 at the lower part of the plant through the third air pipe 50, is discharged from the third inlet and outlet 48 at the lower part of the plant through the third air pipe 47, and is discharged from the lower part of the plant for the people to breathe, meanwhile, residual flue gas at a low position is pushed to a high position, the flue gas at the top of the factory building enters the first air pipe 24 through the first inlet and outlet 40, the air pipe 39, the first inlet and outlet 35, the air pipe 34, the first inlet and outlet 31 and the air pipe 30, the flue gas at the upper part of the suspended ceiling 45 also enters the first air pipe 24 through the second inlet and outlet 36, the eighth air valve 37, the second inlet and outlet 28 and the eighth air valve 28, the flue gas in the first air pipe 24 enters the return air pipeline 16 through the second communication pipeline 54 and the fourth air valve 55, the flue gas in the return air pipeline 16 enters the air building 11 through the seventh air valve 9 and the exhaust pipeline 10, and is blown out of the room from the exhaust outlet 13 through the smoke exhaust fan 12. Therefore, the fresh air or even the cooled fresh air is continuously sent to the plant from the lower part, and simultaneously the fresh air pushes the residual flue gas to rapidly flow to the high part from the lower part and is rapidly sucked away and discharged from the high part.
According to the characteristics of cool air and hot air, when cool air is supplied in summer, the weight of the cool air is heavier than that of indoor air, and the cool air easily sinks, so that a cool air supply mode at the upper part of a factory building and a return air mode at the bottom part are adopted in summer; when hot air is supplied in winter, the weight of the hot air is lighter than that of indoor air, and the hot air floats upwards, and the air supply and return air pipes are switched by adjusting a bypass valve on the air pipe, so that a bottom hot air supply and top return air mode is adopted in winter. Therefore, the air flow of the plant can be facilitated no matter the cool air is sent in summer or the hot air is sent in winter, and a better cooling or heating effect is achieved. In addition, the invention does not need to lay wind pipes for supplying cold wind and hot wind, but only needs to add a bypass wind valve on the main wind pipe, and realizes the switching of high-position air supply, low-position air return, low-position air supply and high-position air return by adjusting the bypass wind valve. In addition, the invention utilizes the return air pipe and the blast pipe as the smoke exhaust pipeline of the smoke prevention and exhaust system, when a fire disaster occurs in a factory building or dense smoke exists in the factory building, the air conditioner of the central air conditioning system stops running, the air inlet valve and the return air valve of the air conditioner are closed, and the smoke exhaust fan is started, so that the smoke exhaust function of the air pipe can be realized, and the investment cost is saved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A central air conditioning process system suitable for tall and big spaces is characterized by comprising the following steps:
the air conditioner at least comprises a blower and a return fan; the air outlet of the air feeder is connected with an air distribution pipeline above the plant through an air feeding pipeline;
the air distribution pipeline comprises a first air pipe and a second air pipe; a first inlet and outlet with a downward opening and a second inlet and outlet with an upward opening are communicated with the first air pipe; the second air pipe is communicated with a third air pipe vertically arranged in the plant, and a third inlet and a third outlet are formed in the lower end of the third air pipe; the third air pipe is connected with an air return inlet of the air return fan through an air return pipeline;
the smoke exhaust fan system is connected with a return air inlet of the return fan through an exhaust pipeline, a fresh air inlet is formed in one end of the return fan, and an air outlet of the return fan corresponds to an air inlet of the air feeder; a surface air cooler and a heater are arranged between the air outlet of the air return fan and the air inlet of the air feeder;
the refrigerator is communicated with the surface cooler through a pipeline;
the boiler is communicated with the heater through a pipeline;
a first communication pipeline and a second communication pipeline are arranged between the air supply pipeline and the air return pipeline;
the air supply pipeline is provided with a first air valve on the air supply pipeline close to the air outlet of the air feeder, the air supply pipeline between the first communication pipeline and the second communication pipeline is provided with a second air valve, the first communication pipeline is provided with a third air valve, the second communication pipeline is provided with a fourth air valve, the air return pipeline between the first communication pipeline and the second communication pipeline is provided with a fifth air valve, the air return pipeline is provided with a sixth air valve close to the air return port, the exhaust pipeline is provided with a seventh air valve, the second inlet and outlet is provided with an eighth air valve, and the fresh air port is provided with a ninth air valve.
2. A central air conditioning system for tall spaces as claimed in claim 1 wherein a filter section is provided between the blower and the return air blower in the air conditioner for filtering the mixture of fresh air and return air.
3. A central air conditioning system suitable for tall spaces according to claim 1, wherein the exhaust fan system comprises a clerestory, an exhaust fan and a filter screen, the exhaust fan is arranged in the clerestory, the filter screen is arranged at the air outlet of the clerestory, and the exhaust pipeline is communicated with the clerestory.
4. A central air conditioning system for tall spaces according to claim 1 wherein the chiller is connected to the surface air cooler by chilled water lines and chilled water return lines.
5. The central air conditioning system for tall spaces according to claim 1, wherein the boiler is connected to the heater through a steam pipe and a condensate return pipe.
6. The central air-conditioning process system suitable for tall spaces as claimed in claim 1, wherein the central air-conditioning process system comprises a summer cold air supply system, a winter hot air supply system, a single-row smoke exhaust system and a smoke exhaust fresh air system;
in the summer cold air supply system, the third air valve, the fourth air valve and the seventh air valve are closed, the first air valve, the second air valve, the fifth air valve and the sixth air valve are opened, and cold air of the refrigerator passes through the surface air cooler and the air outlet of the air feeder and then sequentially enters the air supply pipeline, the first air pipe and the first inlet and outlet to enter a plant; the return air in the plant is returned to the air return machine through a third inlet and outlet, a third air pipe, a second air pipe, an air return pipeline and an air return inlet of the air return machine in sequence;
in the winter hot air supply system, the second air valve and the fifth air valve are closed, the rest air valves are opened, and hot air heated by the boiler and the heater passes through an air outlet of the air feeder and then sequentially passes through the air supply pipeline, the first communicating pipeline, the second air pipe, the third air pipe and the third inlet and outlet to enter a plant; the return air returns to the air return machine through the first inlet and outlet, the first air pipe, the second communicating pipeline, the return air pipeline and the return air inlet of the air return machine in sequence;
in the single smoke exhaust system, the air conditioner stops running, the first air valve, the second air valve, the third air valve and the sixth air valve are closed, the smoke exhaust fan is started, and smoke below the inside of the plant is exhausted to the outside through the smoke exhaust fan system after passing through the third inlet and outlet, the third air pipe, the second air pipe, the return air pipeline and the exhaust air pipeline in sequence; meanwhile, the flue gas above the inside of the plant is exhausted out of the room through a smoke exhaust fan system after sequentially passing through the first inlet and outlet, the first air pipe, the air supply pipeline, the second communication pipeline, the air return pipeline and the exhaust pipeline;
in the smoke exhaust fresh air system, the air conditioner and the smoke exhaust fan system are started, the second air valve, the fifth air valve and the sixth air valve are closed, the rest air valves are opened, and smoke in a factory building is exhausted to the outside through the smoke exhaust fan system after sequentially passing through the first inlet and the first air pipe, the second communicating pipeline, the return air pipeline and the smoke exhaust pipeline; meanwhile, fresh air passes through the air outlet of the air feeder and then sequentially passes through the air supply pipeline, the first communicating pipeline, the second air pipe, the third air pipe and the third inlet and outlet and then enters the plant.
7. A central air-conditioning system suitable for tall spaces as claimed in claim 6, wherein in the summer cool air supply system, the central air-conditioning system also comprises a set amount of return air which enters the smoke exhaust fan system through a seventh air valve and an exhaust pipeline before entering the return air inlet of the return fan and then is exhausted outdoors.
8. A central air-conditioning process system suitable for tall spaces as claimed in claim 6, wherein in the smoke exhaust and fresh air system, a refrigerator is started for cooling fresh air entering through a fresh air inlet and then entering the factory building.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114963354A (en) * | 2021-05-10 | 2022-08-30 | 航天建筑设计研究院有限公司 | Purification system and building thereof |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60108634A (en) * | 1983-11-16 | 1985-06-14 | Kajima Corp | Air conditioning system |
| CN1191292A (en) * | 1996-12-27 | 1998-08-26 | 阿尔贝特·鲍尔 | Air conditioner |
| JP2012047386A (en) * | 2010-08-26 | 2012-03-08 | Asahi Kogyosha Co Ltd | Method of operating air conditioning using free cooling |
| CN102645008A (en) * | 2012-05-16 | 2012-08-22 | 天津市法士豪制冷设备有限公司 | Air conditioner return-air supply structure |
| CN104633885A (en) * | 2013-11-08 | 2015-05-20 | 森德(中国)暖通设备有限公司 | Air distribution device |
| CN104748230A (en) * | 2015-03-25 | 2015-07-01 | 广西中烟工业有限责任公司 | Temperature and humidity control process and air conditioning system for high-bay depot of cigarette factory |
| CN105737298A (en) * | 2014-12-11 | 2016-07-06 | 深圳易信科技股份有限公司 | Energy-saving cooling system for computer room |
| CN205717737U (en) * | 2016-03-22 | 2016-11-23 | 蓝渤环保设备（天津）有限公司 | The intelligence control system that a kind of quenching system is combined with biomass thermal wind furnace |
| CN106765541A (en) * | 2016-11-16 | 2017-05-31 | 邹昌金 | The air channel structure being heated evenly in workshop can be ensured |
| JP2019007639A (en) * | 2017-06-21 | 2019-01-17 | 大和ハウス工業株式会社 | Air conditioning system |
| CN109253520A (en) * | 2018-10-31 | 2019-01-22 | 石家庄学院 | Clean area ventilating system and pressure difference adjusting method |
| JP2019124414A (en) * | 2018-01-17 | 2019-07-25 | 日立グローバルライフソリューションズ株式会社 | Air-conditioning control system and air-conditioning control method |
| US20190309980A1 (en) * | 2018-04-09 | 2019-10-10 | Swegon Operations Ab | Air terminal device for control of air flow in a ventilation system |
| CN210035757U (en) * | 2019-03-25 | 2020-02-07 | 济南宏盛源风机设备有限公司 | Cooling system suitable for frequency conversion room, factory building |
| CN110966663A (en) * | 2018-09-29 | 2020-04-07 | 宁波方太厨具有限公司 | Kitchen air conditioning system |
| CN111520855A (en) * | 2020-06-02 | 2020-08-11 | 河北工业大学 | Fold and move ventilation system |
-
2020
- 2020-10-14 CN CN202011098252.4A patent/CN112228958B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60108634A (en) * | 1983-11-16 | 1985-06-14 | Kajima Corp | Air conditioning system |
| CN1191292A (en) * | 1996-12-27 | 1998-08-26 | 阿尔贝特·鲍尔 | Air conditioner |
| JP2012047386A (en) * | 2010-08-26 | 2012-03-08 | Asahi Kogyosha Co Ltd | Method of operating air conditioning using free cooling |
| CN102645008A (en) * | 2012-05-16 | 2012-08-22 | 天津市法士豪制冷设备有限公司 | Air conditioner return-air supply structure |
| CN104633885A (en) * | 2013-11-08 | 2015-05-20 | 森德(中国)暖通设备有限公司 | Air distribution device |
| CN105737298A (en) * | 2014-12-11 | 2016-07-06 | 深圳易信科技股份有限公司 | Energy-saving cooling system for computer room |
| CN104748230A (en) * | 2015-03-25 | 2015-07-01 | 广西中烟工业有限责任公司 | Temperature and humidity control process and air conditioning system for high-bay depot of cigarette factory |
| CN205717737U (en) * | 2016-03-22 | 2016-11-23 | 蓝渤环保设备（天津）有限公司 | The intelligence control system that a kind of quenching system is combined with biomass thermal wind furnace |
| CN106765541A (en) * | 2016-11-16 | 2017-05-31 | 邹昌金 | The air channel structure being heated evenly in workshop can be ensured |
| JP2019007639A (en) * | 2017-06-21 | 2019-01-17 | 大和ハウス工業株式会社 | Air conditioning system |
| JP2019124414A (en) * | 2018-01-17 | 2019-07-25 | 日立グローバルライフソリューションズ株式会社 | Air-conditioning control system and air-conditioning control method |
| US20190309980A1 (en) * | 2018-04-09 | 2019-10-10 | Swegon Operations Ab | Air terminal device for control of air flow in a ventilation system |
| CN110966663A (en) * | 2018-09-29 | 2020-04-07 | 宁波方太厨具有限公司 | Kitchen air conditioning system |
| CN109253520A (en) * | 2018-10-31 | 2019-01-22 | 石家庄学院 | Clean area ventilating system and pressure difference adjusting method |
| CN210035757U (en) * | 2019-03-25 | 2020-02-07 | 济南宏盛源风机设备有限公司 | Cooling system suitable for frequency conversion room, factory building |
| CN111520855A (en) * | 2020-06-02 | 2020-08-11 | 河北工业大学 | Fold and move ventilation system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114963354A (en) * | 2021-05-10 | 2022-08-30 | 航天建筑设计研究院有限公司 | Purification system and building thereof |
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