CN114484633A - Air purification system of central air conditioner of large building - Google Patents
Air purification system of central air conditioner of large building Download PDFInfo
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- CN114484633A CN114484633A CN202210049337.6A CN202210049337A CN114484633A CN 114484633 A CN114484633 A CN 114484633A CN 202210049337 A CN202210049337 A CN 202210049337A CN 114484633 A CN114484633 A CN 114484633A
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- 238000004887 air purification Methods 0.000 title claims abstract description 20
- 239000000872 buffer Substances 0.000 claims abstract description 47
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 238000005192 partition Methods 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims description 50
- 230000000670 limiting effect Effects 0.000 claims description 46
- 238000009434 installation Methods 0.000 claims description 20
- 238000013016 damping Methods 0.000 claims description 13
- 238000004378 air conditioning Methods 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 14
- 230000009467 reduction Effects 0.000 abstract description 13
- 239000007901 soft capsule Substances 0.000 abstract 2
- 230000003139 buffering effect Effects 0.000 description 13
- 238000000034 method Methods 0.000 description 5
- 230000001960 triggered effect Effects 0.000 description 4
- 230000003313 weakening effect Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
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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
- F24F13/24—Means for preventing or suppressing noise
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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
- F24F7/003—Ventilation in combination with air cleaning
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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
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/242—Sound-absorbing material
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The application discloses an air purification system of a central air conditioner of a large building, which comprises an air supply circulating fan, a return air circulating fan, a mounting frame and a partition plate, wherein a plurality of side vibration reduction mounting mechanisms are arranged between the air supply circulating fan and the inner wall of the mounting frame; a plurality of first upper soft bags are arranged between one side of the air supply circulating fan, which is far away from the return air circulating fan, and the mounting frame, and a plurality of first lower soft bags are arranged between the air supply circulating fan and the partition plate; a plurality of second lower soft capsules are arranged between one side of the return air circulating fan, which is far away from the air supply circulating fan, and the mounting frame, and a plurality of second upper soft capsules are arranged between the return air circulating fan and the partition plate; and buffer mechanisms for slowing down vibration energy transmission are communicated between the first upper soft bag and the second upper soft bag and between the first lower soft bag and the second lower soft bag. This application has the mutual interference or the effect of resonance phenomenon when can avoiding air supply circulating fan and return air circulating fan each side, different amplitude vibrations.
Description
Technical Field
The application relates to the field of fresh air ventilation systems, in particular to a central air-conditioning air purification system for a large building.
Background
The central air conditioning system consists of one or more cold and heat source systems and a plurality of air conditioning systems and is used for performing centralized regulation on the temperature of a plurality of indoor spaces in the building. That is, a central air conditioning system usually uses one main unit to drive a plurality of air conditioning systems to adjust different indoor temperatures. Therefore, the main unit of the central air conditioner is usually larger, and the suction air volume and the air volume of the corresponding main unit are also larger.
Chinese patent with application number CN202020620698.8 in the related art proposes an air outlet purification system of a central air conditioner, which comprises a fan coil and a purifier; the fan coil is used as an air supply pipeline of the central air conditioner and is provided with an air return inlet for air inlet and an air supply outlet for air outlet; the purifier comprises a shell and a purifying component; the shell is of a hollow structure and is provided with openings which are oppositely arranged; one end of the shell, which is adjacent to the air supply outlet, is an air inlet port, and the other end, which is opposite to the air inlet port, is an air outlet port; the shell is embedded into the air supply opening and is fixedly connected with the side wall of the air supply opening; the purification component is installed in the shell and used for purifying air passing through the fan coil.
With respect to the related art among the above, the inventors consider that the following drawbacks exist: the central air conditioner in large building, especially high-rise office building, needs to supply air differently to different rooms of different floors, the corresponding return air volume is different, so the circulating fan needs to be arranged at the coil pipe of the main fan to stabilize the air pressure in the air pipe, usually when the air pipe and the return air pipe are arranged, the air pipe and the return air pipe are the same, the supply circulating fan and the return air circulating fan are generally arranged at the same place in consideration of cost and occupied space, but the supply circulating fan and the return air circulating fan are limited by the different and real-time variability of the supply air volume and the return air volume required, so that the supply circulating fan and the return air circulating fan generate vibration with different amplitudes and different vibration directions when working, on one hand, larger vibration and noise are generated, on the other hand, the vibration with different amplitudes and different vibration directions of the supply circulating fan and the return air pipe interfere with each other, and further the vibration of the circulating fan with lower amplitude when working is caused, even resonance can be generated between the air inlet and the air outlet, so that the integral vibration is aggravated, and the stability of the fresh air system in the working process is influenced.
Disclosure of Invention
In order to improve the problem that can lead to mutual interference or aggravation vibration because of vibration amplitude, vibration direction difference when air supply circulating fan and return air circulating fan establish together, this application provides a large building central air conditioning air purification system.
The application provides a large-scale building central air conditioning air purification system adopts following technical scheme:
a large building central air-conditioning air purification system comprises an air supply pipe, an air return pipe and purifiers arranged in the air supply pipe and the air return pipe, wherein an air supply circulating fan is arranged in the air supply pipe, a return air circulating fan is arranged in the air return pipe, the large building central air-conditioning air purification system also comprises an installation frame and a partition plate fixedly connected to the middle of the installation frame, the air supply circulating fan and the return air circulating fan are both arranged in the installation frame and positioned at two sides of the partition plate, and a plurality of side vibration-damping installation mechanisms are arranged between the air supply circulating fan and the return air circulating fan and the inner wall of the installation frame;
a plurality of first upper soft bags filled with fluid are arranged between one side of the air supply circulating fan, which is far away from the return air circulating fan, and the mounting frame, and a plurality of first lower soft bags filled with fluid are arranged between the air supply circulating fan and the partition plate;
a plurality of second lower soft bags filled with fluid are arranged between one side of the return air circulating fan, which is far away from the air supply circulating fan, and the mounting frame, and a plurality of second upper soft bags filled with fluid are arranged between the return air circulating fan and the partition plate;
and buffer mechanisms for slowing down vibration energy transmission are communicated between the first upper soft bag and the second upper soft bag and between the first lower soft bag and the second lower soft bag.
Through adopting above-mentioned technical scheme, supply air circulating fan and return air circulating fan are at the while operation, and when certain supply air circulating fan and return air circulating fan vibration direction were in opposite directions in the twinkling of an eye, soft bag pressurized and the two internal pressure pushes away the fluid respectively and impresses to buffer gear on first soft bag and the second, can play certain cushioning effect for supply air circulating fan and return air circulating fan's vibration in opposite directions, can effectively weaken the vibration interference between the two.
When the vibration directions of the air supply circulating fan and the air return circulating fan are opposite at a certain moment, the vibration between the air supply circulating fan and the air return circulating fan cannot generate mutual interference.
When the vibration directions of the air supply circulating fan and the air return circulating fan are the same at a certain moment, taking the example that the air return circulating fan vibrates towards the direction close to the air supply circulating fan as an example, the second upper soft bag is pressed, and the internal pressure of the second upper soft bag pushes fluid to be pressed into the buffer mechanism, so that the second upper soft bag can play a buffer role for the air return circulating fan and weaken the vibration amplitude of the air return circulating fan towards the direction close to the air supply circulating fan; further, as the fluid forced into the cushioning mechanism continues to circulate into the first upper bladder, the first upper bladder expands to cushion and attenuate the amplitude of the vibrations of the supply air circulator in a direction away from the return air circulator. And after the buffering mechanism is arranged, the vibration suppression of the first upper soft bag on the air supply circulating fan is delayed, namely, the triggering of the first upper soft bag is delayed, when the air supply circulating fan and the return air circulating fan vibrate in the same direction, the first upper soft bag firstly buffers and damps the air supply circulating fan, and then reversely supports and pushes the air supply circulating fan to weaken the amplitude of the air supply circulating fan, so that the amplitude weakening in the same direction of the air supply circulating fan and the return air circulating fan is realized, and the resonance phenomenon of the air supply circulating fan and the return air circulating fan in the same direction vibration is effectively avoided.
Thereby make air supply circulating fan and return air circulating fan at the during operation, even the two air supply volume is different and change at any time, this application also can realize suppressing the effect of shaking air supply circulating fan and return air circulating fan holistic, avoided air supply circulating fan and return air circulating fan mutual interference as far as possible and even produced the phenomenon of resonance and take place. Compared with the conventional spring vibration reduction method, the vibration reduction method has the advantages that the vibration reduction is mainly realized through flow control of fluid, and the vibration reduction performance is more durable and balanced.
Optionally, the buffer mechanism includes a flow supply pipe with one end connected to the second upper bladder or the first lower bladder, and a return pipe with the other end connected to the first upper bladder or the second lower bladder;
the flow limiting device is characterized in that a buffer cylinder is communicated between the flow supply pipe and the return pipe, a flow limiting plate attached to the inner wall of the buffer cylinder is arranged in the buffer cylinder, and a plurality of through holes are formed in the end portion of the flow limiting plate in a penetrating mode.
By adopting the technical scheme, when the second upper soft bag or the first lower soft bag is pressed, the internal pressure of the second upper soft bag or the first lower soft bag pushes the fluid to flow in the buffer cylinder through the flow supply pipe, when the fluid in the buffer cylinder passes through the through hole on the flow limiting plate, the flow speed is reduced, the fluid circulating in the flow supply pipe can be buffered, and then the second upper soft bag or the first lower soft bag is buffered when being pressed, so that the buffering and vibration reduction effects of the air supply circulating fan and the air return circulating fan are realized.
Optionally, the flow restriction plate is slidably disposed in the buffer cylinder, and a limiting member for limiting a sliding stroke of the flow restriction plate is disposed in the buffer cylinder.
Through adopting above-mentioned technical scheme, when fluid strikes on restrictor plate one side in the confession flow pipe, promote the restrictor plate earlier and slide in the cushion cylinder and by the locating part spacing, can absorb certain impact energy, the fluid passes the perforation again and realizes the buffering of slowing down, can filter some low amplitude vibrations, in order to improve first soft bag and second soft bag down and triggered the expanded threshold value, in order to avoid first soft bag and second soft bag frequently trigger down and to the damping effect of air supply circulating fan and return air circulating fan and produce the influence to the steady operating condition of air supply circulating fan and return air circulating fan.
Optionally, the limiting member includes two limiting plates that the rigid coupling is in buffer cylinder inner wall just is parallel arrangement, the current-limiting plate sets up two between the limiting plate.
Through adopting above-mentioned technical scheme, when the current-limiting plate slides in the cushion cylinder under the impact of fluid in confession flow pipe and back flow, two limiting plate homoenergetic of both sides play limiting displacement to the current-limiting plate to soft bag's trigger time delay overlength influences the harmony of this application whole damping performance under first last soft bag and the second.
Optionally, a reset piece is arranged between the flow limiting plate and the limiting plate.
Through adopting above-mentioned technical scheme, when the current-limiting plate slided between two limiting plates, the piece that resets takes place deformation and can provide certain energy-absorbing effect, further improves buffer gear's energy-absorbing, buffering effect to soft bag is triggered the expanded threshold value under first last soft bag and the second also further improves.
Optionally, the perforated open end is provided with a chamfer.
Through adopting above-mentioned technical scheme, it is more smooth and easy when perforating to perforate to enable the circulation after setting up the chamfer, reduces the turbulent phenomenon when fluid impact on the current-limiting plate as far as possible.
Optionally, a plurality of guide cylinders are fixedly connected to the partition plate, and the first lower soft bag and one end of the second upper soft bag close to the partition plate are fixedly connected to the inner wall of the guide cylinder.
Through adopting above-mentioned technical scheme, the guide cylinder can play effectual guide effect to the first gasbag and the second on the gasbag to the reaction is more sensitive when making the two extruded, makes the fluid in the flow supply pipe can be pressed into buffer gear in time more.
Optionally, avris damping installation mechanism includes that telescopic link and cover establish the outer elastic component of telescopic link, telescopic link one end with the installing frame inner wall is articulated, the other end with air supply circulating fan or return air circulating fan is articulated.
Through adopting above-mentioned technical scheme, when air supply circulating fan or return air circulating fan took place lateral vibration, the telescopic link of being connected with it was flexible, and the elastic component is compressed and is produced deformation, can play effectual inhibitory action to air supply circulating fan and return air circulating fan's lateral vibration.
Optionally, the telescopic link is the slope setting, just the equal rigid coupling in telescopic link both ends has the cover to establish the sheath of elastic component tip.
By adopting the technical scheme, the obliquely arranged telescopic rod can not only effectively support the air supply circulating fan or the air return circulating fan, but also control the vibration directions of the air supply circulating fan and the air return circulating fan; the setting of sheath can carry out effective control to the deformation direction of elastic component to ensure avris damping installation mechanism's stable installation performance and effective damping effect.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the air supply circulating fan and the return air circulating fan work simultaneously, when the vibration directions of the air supply circulating fan and the return air circulating fan are opposite at a certain moment, the buffer mechanism can effectively buffer the air supply circulating fan and the return air circulating fan; when the vibration directions of the air supply circulating fan and the air return circulating fan are the same at a certain moment, taking the vibration of the air return circulating fan towards the direction close to the air supply circulating fan as an example, the second upper soft bag is pressed, the buffer mechanism is used for damping the air return circulating fan, meanwhile, the expansion of the first upper soft bag is used for buffering and weakening the amplitude of the air supply circulating fan, and the triggering of the first upper soft bag is lagged, so that the amplitude weakening when the difference of the unidirectional vibration of the air supply circulating fan and the air return circulating fan is realized, and the mutual interference or resonance phenomenon when the air supply circulating fan and the air return circulating fan vibrate in different directions and different amplitudes is effectively avoided;
2. when fluid in the flow supply pipe impacts one side of the flow limiting plate, the flow limiting plate is pushed to slide in the buffer cylinder and limited by the limiting piece, certain impact energy can be absorbed, the fluid passes through the through hole to realize speed reduction and buffering, and low-amplitude vibration can be filtered, so that the threshold value of triggered expansion of the first upper soft bag and the second lower soft bag is increased;
3. the guide cylinder can play an effective guide role for the first lower soft bag and the second upper soft bag, so that the first lower soft bag and the second upper soft bag can react more sensitively when being extruded, and fluid in the flow supply pipe can be pressed into the buffer mechanism more timely.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is a schematic structural diagram mainly used for showing a buffer mechanism in the embodiment of the present application.
Fig. 3 is a partially enlarged schematic view of a portion a in fig. 1.
Reference numerals: 1. an air supply pipe; 11. an air supply circulating fan; 2. a return air duct; 21. a return air circulating fan; 3. installing a frame; 31. a partition plate; 311. a guide cylinder; 41. a first upper bladder; 42. a second upper soft bag; 51. a first lower bladder; 52. a second lower soft bag; 61. a flow supply pipe; 62. a return pipe; 63. a cushion cylinder; 64. a restrictor plate; 65. perforating; 66. a limiting plate; 67. a reset member; 71. a telescopic rod; 72. an elastic member; 73. a sheath.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a central air-conditioning air purification system for a large building. Referring to fig. 1, large building central air conditioning air purification system includes blast pipe 1, return air pipe 2 and establish the clarifier in the two, be provided with air supply circulating fan 11 in the blast pipe 1, be provided with return air circulating fan 21 in the return air pipe 2, still include mounting frame 3 and rigid coupling at the baffle 31 at 3 middle parts of mounting frame, baffle 31 is the level setting, mounting frame 3 sets up to plate frame form and its both ends open end corresponds blast pipe 1 and return air pipe 2 respectively simultaneously, air supply circulating fan 11 and return air circulating fan 21 all set up in mounting frame 3 and lie in on baffle 31, lower terminal surface both sides, be provided with a plurality of avris damping installation mechanism between air supply circulating fan 11 and return air circulating fan 21 and the 3 side inner walls of mounting frame.
Referring to fig. 1, a plurality of first upper flexible bags 41 filled with fluid are arranged between one side of the air supply circulating fan 11 away from the air return circulating fan 21 and the mounting frame 3, and a plurality of first lower flexible bags 51 filled with fluid are arranged between the air supply circulating fan 11 and the partition plate 31; a plurality of second lower soft bags 52 filled with fluid are arranged between one side of the return air circulating fan 21 far away from the air supply circulating fan 11 and the mounting frame 3, and a plurality of second upper soft bags 42 filled with fluid are arranged between the return air circulating fan 21 and the partition plate 31. Buffer mechanisms for slowing down vibration energy transmission are communicated between the first upper soft bag 41 and the second upper soft bag 42 and between the first lower soft bag 51 and the second lower soft bag 52. The first upper bladder 41, the first lower bladder 51, the second lower bladder 52 and the second upper bladder 42 are all made of rubber, and the fluid filled therein may be gas, liquid, paste, and the like, and specifically may be air, water, hydraulic oil and the like, and water is used as the fluid filling in this application.
Therefore, when the air supply circulating fan 11 and the air return circulating fan 21 work simultaneously, when the vibration directions of the air supply circulating fan 11 and the air return circulating fan 21 are opposite at a certain moment, the first lower soft bag 51 and the second upper soft bag 42 are pressed, and the internal pressures of the first lower soft bag 51 and the second upper soft bag 42 push the fluid to be pressed into the buffer mechanism respectively, so that a certain buffer effect can be achieved for opposite vibration of the air supply circulating fan 11 and the air return circulating fan 21, and vibration interference between the air supply circulating fan 11 and the air return circulating fan 21 can be effectively weakened.
When the vibration directions of the supply air circulating fan 11 and the return air circulating fan 21 are reversed at a certain moment, the vibration between the two will not interfere with each other.
When the vibration directions of the supply circulating fan 11 and the return circulating fan 21 are the same at a certain moment, the principle analysis is taken as an example that the return circulating fan 21 vibrates towards the direction close to the supply circulating fan 11, at the moment, the second upper soft bag 42 is pressed to push the fluid into the buffer mechanism by the internal pressure of the second upper soft bag, so that the buffer effect can be achieved for the return circulating fan 21, and the vibration amplitude of the return circulating fan 21 towards the direction close to the supply circulating fan 11 is weakened. Further, as the fluid pressed into the cushioning mechanism continues to flow into the first upper bladder 41, the first upper bladder 41 expands to cushion and attenuate the vibration of the supply air circulating fan 11 in the direction away from the return air circulating fan 21.
And because after setting up the buffer gear, the vibration suppression of the air supply circulating fan 11 of the first upper soft bag 41 is lagging, namely the triggering inflation that is pressed from the second upper soft bag 42 to the first upper soft bag 41 is lagging; when air supply circulating fan 11 and return air circulating fan 21 vibrate in the same direction simultaneously, first last soft bag 41 cushions, the damping to air supply circulating fan 11 first, carries out reverse support to pushing to weaken the amplitude of air supply circulating fan 11 again to the realization weakens the poor time amplitude when air supply circulating fan 11 and return air circulating fan 21 vibrate in the same direction, has effectively avoided the resonance phenomenon when air supply circulating fan 11 and return air circulating fan 21 vibrate in the same direction.
Thereby make air supply circulating fan 11 and return air circulating fan 21 at the during operation, even the two air supply volume is different and change at any time, this application also can realize suppressing the effect of shaking to air supply circulating fan 11 and return air circulating fan 21 are holistic, has avoided air supply circulating fan 11 and return air circulating fan 21 mutual interference as far as possible and has produced the phenomenon of resonance even and take place.
Compared with the conventional spring vibration reduction method, the vibration reduction method has the advantages that the vibration reduction is mainly realized through flow control of fluid, and the vibration reduction performance is more durable and balanced.
In specific implementation, referring to fig. 1 and 2, the buffer mechanism includes a fluid supply pipe 61 having one end connected to the second upper bladder 42 or the first lower bladder 51, and a fluid return pipe 62 having the other end connected to the first upper bladder 41 or the second lower bladder 52, and the fluid supply pipe 61 and the fluid return pipe 62 both use pressure-resistant oil pipes. A buffer cylinder 63 is communicated between the flow supply pipe 61 and the return pipe 62, a flow limiting plate 64 closely attached to the inner wall of the buffer cylinder 63 is arranged in the buffer cylinder 63, a plurality of through holes 65 are formed in the end portion of the flow limiting plate 64 in a penetrating mode, a chamfer is arranged at the opening end of each through hole 65, and the chamfer can be arranged at both ends of each through hole 65 or only at one end.
When the second upper soft bag 42 or the first lower soft bag 51 is pressed, the internal pressure thereof pushes the fluid to flow through the flow supply pipe 61 in the buffer cylinder 63, and when the fluid in the buffer cylinder 63 passes through the through hole 65 on the flow limiting plate 64, the flow rate is reduced, the fluid circulating in the flow supply pipe 61 can be buffered, and then the buffering of the second upper soft bag 42 or the first lower soft bag 51 when pressed is realized, thereby realizing the buffering and vibration damping effects of the air supply circulating fan 11 and the air return circulating fan 21; moreover, the through hole 65 is chamfered to ensure that the fluid can flow more smoothly when passing through the through hole 65, and the turbulence phenomenon when the fluid impacts on the flow restriction plate 64 is reduced as much as possible.
Further, referring to fig. 2, the current limiting plate 64 is slidably disposed in the buffering cylinder 63, a limiting member for limiting a sliding stroke of the current limiting plate 64 is disposed in the buffering cylinder 63, the limiting member includes two limiting plates 66 fixedly connected to an inner wall of the buffering cylinder 63 and disposed in parallel, the current limiting plate 64 is disposed between the two limiting plates 66, a reset member 67 is disposed between the current limiting plate 64 and the limiting plates 66, and the reset member 67 is a spring with a lower elastic coefficient. The reset member 67 may be disposed on two and two sides of the flow restricting plate 64, or one of the reset member 67 may be disposed on one side of the flow restricting plate 64 close to the flow supplying pipe 61 or one side of the flow restricting plate 64 close to the return pipe 62, in this embodiment, the reset member 67 is disposed on only one side of the flow restricting plate 64 close to the return pipe 62, and correspondingly, the chamfer of the through hole 65 is disposed on one side of the flow restricting plate 64 close to the flow supplying pipe 61.
Therefore, when fluid in the flow supply pipe 61 impacts one side of the flow restriction plate 64, the flow restriction plate 64 is pushed to slide in the buffer cylinder 63, the reset piece 67 is deformed to absorb certain impact energy, and the fluid passes through the through hole 65 to realize speed reduction and buffering, so that low-amplitude vibration can be filtered, the threshold value of triggered expansion of the first upper soft bag 41 and the second lower soft bag 52 is increased, and the influence on the damping effect of the air supply circulating fan 11 and the air return circulating fan 21 and the stable working state of the air supply circulating fan 11 and the air return circulating fan 21 caused by frequent triggering of the first upper soft bag 41 and the second lower soft bag 52 is avoided.
However, in practical debugging, it is found that the triggering of the first upper soft bag 41 and the second lower soft bag 52 is also influenced by the deformation direction of the second upper soft bag 42 and the first lower soft bag 51 under pressure, and therefore, referring to fig. 1, a plurality of guide cylinders 311 are fixedly connected to the partition plate 31, and one ends of the first lower soft bag 51 and the second upper soft bag 42 close to the partition plate 31 are fixedly connected to the inner wall of the guide cylinders 311. Therefore, the guide cylinder 311 can effectively guide the deformation of the first lower soft bag 51 and the second upper soft bag 42 when being pressed, so that the reaction of the first lower soft bag 51 and the second upper soft bag 42 when being pressed is more sensitive, the fluid in the flow supply pipe 61 can be pressed into the buffer mechanism more timely, and the triggering sensitivity of the first upper soft bag 41 and the second lower soft bag 52 is improved.
During specific installation, referring to fig. 1 and 3, the side vibration reduction installation mechanism comprises an expansion link 71 and an elastic part 72 sleeved outside the expansion link 71, the elastic part 72 is arranged as a spring, the expansion link 71 is obliquely arranged, one end of the expansion link 71 is hinged to the inner wall of the installation frame 3, the other end of the expansion link is hinged to the air supply circulating fan 11 or the air return circulating fan 21, the thicker end of the expansion link 71 is hinged to the installation frame 3, the thinner end of the expansion link is hinged to the air supply circulating fan 11 or the air return circulating fan 21, a sheath 73 sleeved at the end part of the elastic part 72 is fixedly connected to both ends of the expansion link 71, and the sheath 73 is in a cover shape, and the opening end of the sheath faces the elastic part 72 and is in plug-in fit with the end part of the elastic part 72.
The implementation principle of the air purification system of the central air conditioner of the large building in the embodiment of the application is as follows: when the supply circulating fan 11 and the return circulating fan 21 work simultaneously, when the vibration directions of the supply circulating fan 11 and the return circulating fan 21 are opposite at a certain moment, the flow limiting plate 64 slides between the two limiting plates 66 under the impact of the fluid and limits the flow rate of the fluid through the plurality of through holes 65, and an effective buffering effect can be achieved for the supply circulating fan 11 and the return circulating fan 21.
When the vibration directions of the supply air circulating fan 11 and the return air circulating fan 21 are the same at a certain moment, taking the example that the return air circulating fan 21 vibrates towards the direction close to the supply air circulating fan 11 as an example, the second upper soft bag 42 is pressed, and the flow restriction plate 64 slides between the two limiting plates 66 under the impact of the fluid and limits the flow rate of the fluid through the plurality of through holes 65 so as to buffer and damp the return air circulating fan 21; when the fluid passes through the through hole 65 and flows into the first upper soft bag 41 through the return pipe 62, the first upper soft bag 41 expands to buffer the supply air circulating fan 11 and weaken the amplitude, and the triggering of the first upper soft bag 41 is delayed, so that the difference time amplitude weakening of the supply air circulating fan 11 and the return air circulating fan 21 during the same-direction vibration is realized, and the mutual interference or resonance phenomenon of the supply air circulating fan 11 and the return air circulating fan 21 during the vibration in different directions and different amplitudes is effectively avoided.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a large building central air conditioning air purification system, includes blast pipe (1), return air pipe (2) and establishes the clarifier in the two, be provided with air supply circulating fan (11) in blast pipe (1), be provided with return air circulating fan (21), its characterized in that in return air pipe (2): the air supply circulating fan and air return circulating fan combined installation structure is characterized by further comprising an installation frame (3) and a partition plate (31) fixedly connected to the middle of the installation frame (3), wherein the air supply circulating fan (11) and the air return circulating fan (21) are arranged in the installation frame (3) and located on two sides of the partition plate (31), and a plurality of side damping installation mechanisms are arranged between the air supply circulating fan (11) and the air return circulating fan (21) and the inner wall of the installation frame (3);
a plurality of first upper soft bags (41) filled with fluid are arranged between one side of the air supply circulating fan (11) far away from the return air circulating fan (21) and the mounting frame (3), and a plurality of first lower soft bags (51) filled with fluid are arranged between the air supply circulating fan (11) and the partition plate (31);
a plurality of second lower soft bags (52) filled with fluid are arranged between one side of the return air circulating fan (21) far away from the air supply circulating fan (11) and the mounting frame (3), and a plurality of second upper soft bags (42) filled with fluid are arranged between the return air circulating fan (21) and the partition plate (31);
and buffer mechanisms for slowing down vibration energy transmission are communicated between the first upper soft bag (41) and the second upper soft bag (42) and between the first lower soft bag (51) and the second lower soft bag (52).
2. The air purification system of a central air conditioner in a large building according to claim 1, wherein: the buffer mechanism comprises a flow supply pipe (61) with one end connected with the second upper soft bag (42) or the first lower soft bag (51), and a return pipe (62) with the other end connected with the first upper soft bag (41) or the second lower soft bag (52);
a buffer cylinder (63) is communicated between the flow supply pipe (61) and the return pipe (62), a flow limiting plate (64) which is tightly attached to the inner wall of the buffer cylinder (63) is arranged in the buffer cylinder (63), and a plurality of through holes (65) are formed in the end portion of the flow limiting plate (64) in a penetrating mode.
3. The air purification system of a central air conditioner in a large building according to claim 2, wherein: the flow limiting plate (64) is arranged in the buffer cylinder (63) in a sliding mode, and a limiting piece used for limiting the sliding stroke of the flow limiting plate (64) is arranged in the buffer cylinder (63).
4. The air purification system of a central air conditioner in a large building according to claim 3, wherein: the limiting piece comprises two limiting plates (66) which are fixedly connected to the inner wall of the buffer cylinder (63) and arranged in parallel, and the flow limiting plate (64) is arranged between the two limiting plates (66).
5. The air purification system of a central air conditioner in a large building according to claim 4, wherein: a reset piece (67) is arranged between the flow limiting plate (64) and the limiting plate (66).
6. The air purification system of a central air conditioner in a large building according to claim 2, wherein: the opening end of the through hole (65) is provided with a chamfer.
7. The air purification system of a central air conditioner in a large building according to claim 1, wherein: the baffle (31) is fixedly connected with a plurality of guide cylinders (311), the first lower soft bag (51) and the second upper soft bag (42) are close to one end of the baffle (31) and fixedly connected with the inner walls of the guide cylinders (311).
8. The air purification system of a central air conditioner in a large building according to claim 1, wherein: avris damping installation mechanism includes telescopic link (71) and cover and establishes elastic component (72) outside telescopic link (71), telescopic link (71) one end with installing frame (3) inner wall is articulated, the other end with air supply circulating fan (11) or return air circulating fan (21) are articulated.
9. The air purification system of a central air conditioner in a large building according to claim 8, wherein: the telescopic rod (71) is obliquely arranged, and two ends of the telescopic rod (71) are fixedly connected with sheaths (73) which are sleeved at the end parts of the elastic pieces (72).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210049337.6A CN114484633B (en) | 2022-01-17 | 2022-01-17 | Air purifying system of central air conditioner for large building |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210049337.6A CN114484633B (en) | 2022-01-17 | 2022-01-17 | Air purifying system of central air conditioner for large building |
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| CN114484633B CN114484633B (en) | 2024-01-30 |
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| CN114484633B (en) | 2024-01-30 |
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