CN114484633B - Air purifying system of central air conditioner for large building - Google Patents
Air purifying system of central air conditioner for large building Download PDFInfo
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- CN114484633B CN114484633B CN202210049337.6A CN202210049337A CN114484633B CN 114484633 B CN114484633 B CN 114484633B CN 202210049337 A CN202210049337 A CN 202210049337A CN 114484633 B CN114484633 B CN 114484633B
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- 239000000872 buffer Substances 0.000 claims abstract description 58
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 238000005192 partition Methods 0.000 claims abstract description 20
- 238000004378 air conditioning Methods 0.000 claims abstract description 18
- 238000004887 air purification Methods 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000000670 limiting effect Effects 0.000 claims description 58
- 239000012530 fluid Substances 0.000 claims description 50
- 230000009467 reduction Effects 0.000 claims description 16
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 14
- 238000013016 damping Methods 0.000 abstract description 7
- 230000003139 buffering effect Effects 0.000 description 9
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 239000007901 soft capsule Substances 0.000 description 4
- 230000003313 weakening effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- -1 etc. Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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
Landscapes
- 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 a large-scale building central air conditioning air purification system, it includes air supply circulation fan, return air circulation fan, installing frame and baffle, is provided with a plurality of limit side damping installation mechanism between air supply circulation fan and return air circulation fan and the installing frame inner wall; a plurality of first upper soft bags are arranged between one side, far away from the return air circulating fan, of the air supply 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 bags are arranged between one side, far away from the air supply circulating fan, of the air return circulating fan and the mounting frame, and a plurality of second upper soft bags are arranged between the air return circulating fan and the partition plate; and a buffer mechanism for slowing down vibration energy transmission is 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. The utility model has the effect that can avoid the mutual interference or resonance phenomenon when air supply circulation fan and return air circulation fan each direction, different amplitude vibrations.
Description
Technical Field
The application relates to the field of fresh air exchange systems, in particular to an air purification system of a central air conditioner of 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 intensively adjusting the temperature of a plurality of indoor spaces in a building. That is, the central air conditioning system generally uses one host to drive a plurality of air conditioning systems to regulate different indoor temperatures. Therefore, the main unit of the central air conditioner is usually larger, and the air suction amount and the air supply amount of the corresponding main unit are also larger.
The Chinese patent with the application number of CN202020620698.8 in the related art provides 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 opening for air inlet and an air supply opening 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; the air inlet port is arranged at one end of the shell adjacent to the air supply port, and the air outlet port is arranged at the end opposite to the air inlet port; the shell is embedded into the air supply port and is fixedly connected with the side wall of the air supply port; the purification assembly is mounted in the housing for purifying air passing through the fan coil.
With respect to the related art in the above, the inventors consider that there are the following drawbacks: the central air conditioner in a large building, especially a high-rise office building, needs to differentially supply air to different rooms of different floors, and the corresponding return air volumes are different, so that a circulating fan is required to be arranged at a total fan coil pipe to stabilize the wind pressure in an air pipe, and generally, when an air supply pipe and an air return pipe are arranged, the trend of the air supply circulating fan and the trend of the return air pipe are generally the same, and the air supply circulating fan and the return air circulating fan are generally arranged at the same place due to the consideration of cost and occupied space, but are limited by the different air volumes and the real-time variability of the required air supply volume and the return air volume, so that the air supply circulating fan and the return air circulating fan generate vibrations with different amplitudes and different vibration directions when working, on one hand, larger vibration and noise are generated, and on the other hand, the vibrations with different amplitudes and different vibration directions can interfere with each other, so as to further cause vibration when the circulating fan with lower amplitude works, resonance is generated even between the two, and the whole vibration is aggravated, and the stability when the fresh air system works is affected.
Disclosure of Invention
In order to improve the problem that the air supply circulating fan and the return air circulating fan can cause mutual interference or aggravate vibration due to different vibration amplitudes and vibration directions when being arranged together, the application provides a large-scale building central air conditioning air purification system.
The application provides a large-scale building central air conditioning air purification system adopts following technical scheme:
the utility model provides a large-scale building central air conditioning air purification system, includes blast pipe, return air pipe and establishes the clarifier in the two, be provided with the circulation fan of supplying air in the blast pipe, be provided with the circulation fan of return air in the return air pipe, still include the installing frame and the rigid coupling is in the baffle at installing frame middle part, supply air circulation fan with the circulation fan of return air all sets up in the installing frame and is located the baffle both sides, supply air circulation fan with return air circulation fan with be provided with a plurality of limit side damping installation mechanism between the installing frame inner wall;
a plurality of first upper soft bags filled with fluid are arranged between one side, far away from the return air circulating fan, of the air supply 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, far away from the air supply circulating fan, of the air return circulating fan and the mounting frame, and a plurality of second upper soft bags filled with fluid are arranged between the air return circulating fan and the partition plate;
and a buffer mechanism for slowing down vibration energy transmission is 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, when air supply circulation fan and return air circulation fan at simultaneous operation, when the air supply circulation fan and return air circulation fan vibration direction in a moment be in opposite directions, soft bag pressurized and the two internal pressure promotes the fluid respectively in pressing into buffer gear down on first soft bag and the second, can play certain cushioning effect for air supply circulation fan and return air circulation 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 return air circulating fan are reversed at a certain moment, the vibration between the two cannot interfere with each other.
When the vibration directions of the air supply circulating fan and the air return circulating fan are in the same direction at a certain moment, taking the vibration of the air return circulating fan in 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 buffer effect can be achieved for the air return circulating fan, and the vibration amplitude of the air return circulating fan in the direction close to the air supply circulating fan is weakened; further, as fluid forced into the buffer mechanism continues to circulate into the first upper bladder, the first upper bladder expands to buffer and attenuate vibrations of the supply air circulation fan in a direction away from the return air circulation fan. And after the buffer mechanism is arranged, the vibration inhibition of the first upper soft bag to the air supply circulating fan is lagged, namely the triggering of the first upper soft bag is lagged, when the air supply circulating fan and the return air circulating fan vibrate in the same direction at the same time, the first upper soft bag firstly buffers and dampens the air supply circulating fan, and then reversely pushes the air supply circulating fan to weaken the amplitude of the air supply circulating fan, so that the amplitude weakening when the air supply circulating fan and the return air circulating fan vibrate in the same direction is realized, and the resonance phenomenon when the air supply circulating fan and the return air circulating fan vibrate in the same direction is effectively avoided.
Therefore, when the air supply circulating fan and the air return circulating fan work, even if the air supply amounts of the air supply circulating fan and the air return circulating fan are different and change at any time, the vibration suppression effect on the whole air supply circulating fan and the air return circulating fan can be realized, and the phenomenon that the air supply circulating fan and the air return circulating fan interfere with each other and even generate resonance is avoided as much as possible. Compared with the conventional spring vibration reduction, the spring vibration reduction device has the advantages that the problem that the vibration reduction performance is reduced due to fatigue degree after the spring is used for a long time is solved, and the vibration reduction performance is more durable and balanced mainly through fluid flow control.
Optionally, the buffer mechanism includes a flow supply pipe with one end connected with the second upper soft bag or the first lower soft bag, and a return pipe with the other end connected with the first upper soft bag or the second lower soft bag;
the buffer cylinder is communicated between the flow supply pipe and the return pipe, a current limiting plate clung to the inner wall of the buffer cylinder is arranged in the buffer cylinder, and a plurality of perforations are formed in the end part of the current limiting plate in a penetrating mode.
Through adopting above-mentioned technical scheme, when soft bag or first soft bag are pressed down on the second, its internal pressure promotes the fluid flow through supply tube to flow in the buffer jar, and when the fluid in the buffer jar passed the perforation on the current limiting plate, the velocity of flow reduces, can cushion the fluid that flows in the supply tube, and then realizes the buffering when soft bag or first soft bag are pressed down on the second to realize the buffering to air supply circulation fan and return air circulation fan, damping effect.
Optionally, the current limiting plate slides and sets up in the buffer cylinder, be provided with in the buffer cylinder and be used for restricting the locating part of current limiting plate slip stroke.
Through adopting above-mentioned technical scheme, when fluid impact in the power supply pipe is in current limiting plate one side, promote current limiting plate and slide in the buffer jar and spacing by the locating part earlier, can absorb certain impact energy, fluid passes the perforation again and realizes the speed reduction buffering, can filter some low-amplitude vibrations to improve first soft capsule and second soft capsule under by the threshold value of triggering the inflation, so that first soft capsule and second soft capsule frequently trigger the damping effect to air supply circulation fan and return air circulation fan under and to air supply circulation fan's steady operating condition produces the influence.
Optionally, the locating part includes the rigid coupling is in buffer jar inner wall and be two limiting plates of 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 buffer cylinder under fluid's impact in power supply pipe and back flow, two limiting plates of both sides can both play limiting effect to the current-limiting plate to the trigger delay overlength of soft bag under first upper soft bag and the second influences the harmony of this application whole damping performance.
Optionally, a reset piece is arranged between the current limiting plate and the limiting plate.
Through adopting above-mentioned technical scheme, when the current limiting plate slides between two limiting plates, the piece that resets takes place to deform can provide certain energy-absorbing effect, further improves buffer mechanism's energy-absorbing, cushioning effect to also further improve first upper soft bag and second lower soft bag by the threshold value of triggering the inflation.
Optionally, the perforated open end is provided with a chamfer.
Through adopting above-mentioned technical scheme, can make the circulation more smooth and easy when passing through the perforation after the perforation sets up the chamfer, turbulent flow phenomenon when the fluid impact on the current limiting plate is reduced as far as possible.
Optionally, a plurality of guide cylinders are fixedly connected on the partition board, and one ends of the first lower soft bag and the second upper soft bag, which are close to the partition board, are fixedly connected on the inner wall of the guide cylinder.
Through adopting above-mentioned technical scheme, the guiding tube can play effectual guiding action to first soft bag and second upper soft bag to make the two react more sensitively when being extruded, make the fluid in the power supply pipe can be pressed in buffer gear in time more.
Optionally, the side damping installation mechanism includes telescopic link and cover and establishes the elastic component outside the telescopic link, telescopic link one end with the installing frame inner wall articulates, the other end with supply air circulating fan or return air circulating fan articulates.
Through adopting above-mentioned technical scheme, when air supply circulation fan or return air circulation fan take place the side direction vibration, the telescopic link that is connected with it stretches out and draws back, and the elastic component is compressed and is produced deformation, can play effectual inhibitory action to the side direction vibration of air supply circulation fan and return air circulation fan.
Optionally, the telescopic link is the slope setting, just telescopic link both ends all rigid coupling have the cover to be established the sheath of elastic component tip.
By adopting the technical scheme, the obliquely arranged telescopic rod not only can effectively support the air supply circulating fan or the air return circulating fan, but also can control the vibration directions of the air supply circulating fan and the air return circulating fan; the arrangement of the sheath can effectively control the deformation direction of the elastic piece so as to ensure the stable installation performance and the effective vibration reduction effect of the side vibration reduction installation mechanism.
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 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 in the same direction 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 air return circulating fan is damped by the buffer mechanism, meanwhile, the air supply circulating fan is buffered and weakened in amplitude by the expansion of the first upper soft bag, the triggering of the first upper soft bag is lagged, the amplitude weakening at the time of the difference between the vibration directions of the air supply circulating fan and the air return circulating fan is realized, and the mutual interference or resonance phenomenon at the vibration of different amplitudes in all directions of the air supply circulating fan and the air return circulating fan is effectively avoided;
2. when fluid in the flow supply pipe impacts on 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, so that certain impact energy can be absorbed, the fluid passes through the perforation to realize deceleration buffering, and low-amplitude vibration can be filtered to improve the threshold value of triggered expansion of the first upper soft bag and the second lower soft bag;
3. the guide cylinder can effectively guide the first lower soft bag and the second upper soft bag, so that the reaction is more sensitive when the first lower soft bag and the second upper soft bag are extruded, and fluid in the fluid supply pipe can be pressed into the buffer mechanism more timely.
Drawings
Fig. 1 is a schematic overall structure of an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a buffering mechanism according to an embodiment of the present application.
Fig. 3 is an enlarged partial schematic view of the portion a in fig. 1.
Reference numerals: 1. an air supply pipe; 11. an air supply circulating fan; 2. an air return pipe; 21. a return air circulating fan; 3. a mounting frame; 31. a partition plate; 311. a guide cylinder; 41. a first upper bladder; 42. a second upper bladder; 51. a first lower bladder; 52. a second lower bladder; 61. a supply tube; 62. a return pipe; 63. a buffer cylinder; 64. a flow-limiting plate; 65. perforating; 66. a limiting plate; 67. a reset member; 71. a telescopic rod; 72. an elastic member; 73. and (3) a sheath.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-3.
The embodiment of the application discloses a large-scale building central air conditioning air purification system. Referring to fig. 1, the air purifying system of the central air conditioner of the large building comprises an air supply pipe 1, an air return pipe 2 and a purifier arranged in the air return pipe 1, wherein an air supply circulating fan 11 is arranged in the air supply pipe 1, the air return pipe 2 is provided with an air return circulating fan 21, the air purifying system further comprises a mounting frame 3 and a partition plate 31 fixedly connected in the middle of the mounting frame 3, the partition plate 31 is horizontally arranged, the mounting frame 3 is in a plate frame shape, two opening ends of the mounting frame 3 respectively correspond to the air supply pipe 1 and the air return pipe 2, the air supply circulating fan 11 and the air return circulating fan 21 are arranged in the mounting frame 3 and are positioned on two sides of the upper end face and the lower end face of the partition plate 31, and a plurality of side vibration reduction mounting mechanisms are arranged between the air supply circulating fan 11 and the air return circulating fan 21 and the side inner walls of the side edges of the mounting frame 3.
Referring to fig. 1, a plurality of first upper soft bags 41 filled with fluid are arranged between the side of the air supply circulating fan 11 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 the side, far away from the air supply circulating fan 11, of the return air circulating fan 21 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. A buffer mechanism for slowing down vibration energy transmission is 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 soft bag 41, the first lower soft bag 51, the second lower soft bag 52 and the second upper soft bag 42 are all made of rubber, and the fluid filled therein may be gas, liquid, paste, etc., specifically may be air, water, hydraulic oil, etc., and water is used as the fluid to be filled in the present 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, the internal pressure of the first lower soft bag and the second upper soft bag respectively push fluid to be pressed into the buffer mechanism, 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 air supply circulating fan 11 and the return air circulating fan 21 are reversed at a certain moment, the vibration between the two cannot interfere with each other.
When the vibration directions of the air supply circulating fan 11 and the air return circulating fan 21 are in the same direction at a certain moment, the principle analysis is taken as an example of vibration of the air return circulating fan 21 in a direction approaching to the air supply circulating fan 11, and at the moment, the second upper soft bag 42 is pressed to push fluid into the buffer mechanism under the internal pressure, so that the buffer effect can be achieved for the air return circulating fan 21, and the vibration amplitude of the air return circulating fan 21 in a direction approaching to the air supply circulating fan 11 is weakened. Further, as the fluid forced into the buffer mechanism continues to circulate into the first upper bladder 41, the first upper bladder 41 expands to buffer and attenuate the vibrations of the supply air circulation fan 11 in a direction away from the return air circulation fan 21.
And because of the buffer mechanism, the vibration suppression of the air supply circulating fan 11 by the first upper soft bag 41 is lagged, namely, the trigger expansion from the second upper soft bag 42 to the first upper soft bag 41 is lagged; when the air supply circulating fan 11 and the return air circulating fan 21 vibrate in the same direction at the same time, the first upper soft bag 41 firstly buffers and dampens the air supply circulating fan 11, and then reversely pushes the air supply circulating fan 11 to weaken the amplitude of the air supply circulating fan 11, so that the difference-time amplitude weakening of the air supply circulating fan 11 and the return air circulating fan 21 in the same direction is realized, and the resonance phenomenon of the air supply circulating fan 11 and the return air circulating fan 21 in the same direction is effectively avoided.
Thereby make air supply circulation fan 11 and return air circulation fan 21 at the during operation, even the two air supply volume is different and change at any time, this application also can realize the holistic effect of suppressing vibration to air supply circulation fan 11 and return air circulation fan 21, has avoided air supply circulation fan 11 and return air circulation fan 21 to interfere each other as far as possible and has produced the phenomenon emergence of resonance even.
Compared with the conventional spring vibration reduction, the spring vibration reduction device has the advantages that the problem that the vibration reduction performance is reduced due to fatigue degree after the spring is used for a long time is solved, and the vibration reduction performance is more durable and balanced mainly through fluid flow control.
In specific implementation, referring to fig. 1 and 2, the buffer mechanism includes a flow supply pipe 61 with one end connected to the second upper bladder 42 or the first lower bladder 51, and a return pipe 62 with the other end connected to the first upper bladder 41 or the second lower bladder 52, where both the flow supply pipe 61 and the return pipe 62 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 clung to the inner wall of the buffer cylinder 63 is arranged in the buffer cylinder 63, a plurality of perforations 65 are formed in the end part of the flow limiting plate 64 in a penetrating manner, chamfers are arranged at the opening ends of the perforations 65, and the chamfers can be arranged at both ends of the perforations 65 or can be arranged at one end only.
When the second upper soft bag 42 or the first lower soft bag 51 is pressed, the internal pressure pushes the fluid to flow in the buffer cylinder 63 through the fluid supply pipe 61, when the fluid in the buffer cylinder 63 passes through the perforation 65 on the flow limiting plate 64, the flow speed is reduced, and the fluid flowing in the fluid supply pipe 61 can be buffered, so that the buffering of the second upper soft bag 42 or the first lower soft bag 51 is realized, and the buffering and vibration reduction effects of the air supply circulating fan 11 and the air return circulating fan 21 are realized; and the through holes 65 are chamfered to make the circulation smoother when passing through the through holes 65, so as to reduce turbulence phenomenon when the fluid impacts on the flow limiting plate 64 as much as possible.
Still further, referring to fig. 2, the current limiting plate 64 is slidably disposed in the buffer cylinder 63, a limiting member for limiting the sliding travel of the current limiting plate 64 is disposed in the buffer cylinder 63, the limiting member includes two limiting plates 66 fixedly connected to the inner wall of the buffer 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 set as a spring with a lower elastic coefficient. The resetting piece 67 may be provided with two separate flow limiting plates 64, or may be provided with one on the side of the flow limiting plate 64 close to the flow supplying pipe 61 or on the side of the flow limiting plate 64 close to the return pipe 62, in this embodiment, the resetting piece 67 is provided with only one on the side of the flow limiting plate 64 close to the return pipe 62, and correspondingly, the chamfer of the perforation 65 is provided on the side of the flow limiting plate 64 close to the flow supplying pipe 61.
Therefore, when the fluid in the fluid supply pipe 61 impacts on one side of the flow limiting plate 64, the flow limiting plate 64 is pushed to slide in the buffer cylinder 63, the reset piece 67 deforms to absorb a certain impact energy, and the fluid passes through the perforation 65 to realize deceleration buffering, so that the threshold value that the first upper soft bag 41 and the second lower soft bag 52 are triggered to expand is set to be improved, so that the first upper soft bag 41 and the second lower soft bag 52 are prevented from frequently triggering the vibration reduction effect on the air supply circulating fan 11 and the air return circulating fan 21 to influence the stable working states of the air supply circulating fan 11 and the air return circulating fan 21.
In actual debugging, it is found that the triggering of the first upper soft bag 41 and the second lower soft bag 52 is also affected by the direction of the compressive deformation of the second upper soft bag 42 and the first lower soft bag 51, so, referring to fig. 1, a plurality of guide cylinders 311 are fixedly connected on the partition plate 31, and one ends of the first lower soft bag 51 and the second upper soft bag 42, which are close to the partition plate 31, are fixedly connected on the inner wall of the guide cylinder 311. Therefore, the guiding cylinder 311 can effectively guide 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 is more sensitive when the first lower soft bag and the second upper soft bag are pressed, fluid in the fluid 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 damping installation mechanism includes telescopic link 71 and cover establish the elastic component 72 outside telescopic link 71, elastic component 72 sets up to the spring, telescopic link 71 is the slope setting, telescopic link 71 one end is articulated with the inner wall of installing frame 3, the other end is articulated with air supply circulation fan 11 or return air circulation fan 21, the thick end of telescopic link 71 articulates on installing frame 3, the thinner end articulates on air supply circulation fan 11 or return air circulation fan 21, and the equal rigid coupling in telescopic link 71 both ends has the sheath 73 of cover setting at elastic component 72 tip, sheath 73 is the lid form and open end orientation elastic component 72 and with elastic component 72 tip grafting adaptation.
The implementation principle of the air purification system of the large-scale building central air conditioner in the embodiment of the application is as follows: when the air supply circulating fan 11 and the return air circulating fan 21 work simultaneously, when the vibration directions of the air supply circulating fan 11 and the return air circulating fan 21 are opposite at a moment, the flow limiting plate 64 slides between the two limiting plates 66 under the impact of fluid and limits the flow velocity of the fluid through the plurality of perforations 65, so that an effective buffering effect can be achieved for the air supply circulating fan 11 and the return air circulating fan 21.
When the vibration directions of the air supply circulating fan 11 and the air return circulating fan 21 are the same at a certain moment, taking the vibration of the air return circulating fan 21 towards the direction close to the air supply circulating fan 11 as an example, the second upper soft bag 42 is pressed, the flow limiting plate 64 slides between the two limiting plates 66 under the impact of fluid and limits the flow velocity of the fluid through the plurality of perforations 65 so as to buffer and damp the air return circulating fan 21; when fluid passes through the perforation 65 and flows into the first upper soft bag 41 through the return pipe 62, the first upper soft bag 41 expands to buffer and weaken the amplitude of the air supply circulating fan 11, and the triggering of the first upper soft bag 41 is delayed, so that the amplitude weakening when the air supply circulating fan 11 and the return air circulating fan 21 vibrate in the same direction is realized, and the mutual interference or resonance phenomenon when the air supply circulating fan 11 and the return air circulating fan 21 vibrate in different directions and different amplitudes is effectively avoided.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (9)
1. The utility model provides a large-scale 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 circulation fan (11) in blast pipe (1), be provided with return air circulation fan (21) in return air pipe (2), its characterized in that: the device further comprises a mounting frame (3) and a partition plate (31) fixedly connected to the middle of the mounting frame (3), wherein the air supply circulating fan (11) and the return air circulating fan (21) are arranged in the mounting frame (3) and are positioned on two sides of the partition plate (31), and a plurality of side vibration reduction mounting mechanisms are arranged between the air supply circulating fan (11) and the return air circulating fan (21) and the inner wall of the mounting frame (3);
a plurality of first upper soft bags (41) filled with fluid are arranged between one side, far away from the return air circulating fan (21), of the air supply circulating fan (11) 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, far away from the air supply circulating fan (11), of the air return circulating fan (21) and the mounting frame (3), and a plurality of second upper soft bags (42) filled with fluid are arranged between the air return 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).
2. The large-scale building central air conditioning air purification system 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 current limiting plate (64) clung to the inner wall of the buffer cylinder (63) is arranged in the buffer cylinder (63), and a plurality of perforations (65) are formed in the end part of the current limiting plate (64) in a penetrating mode.
3. The large-scale building central air conditioning air purifying system according to claim 2, wherein: the limiting plate (64) is slidably arranged in the buffer cylinder (63), and a limiting piece for limiting the sliding travel of the limiting plate (64) is arranged in the buffer cylinder (63).
4. A large building central air conditioning air purification system as recited in claim 3 wherein: the limiting piece comprises two limiting plates (66) fixedly connected to the inner wall of the buffer cylinder (63) and arranged in parallel, and the current limiting plate (64) is arranged between the two limiting plates (66).
5. The large-scale building central air conditioning air purifying system according to claim 4, wherein: a reset piece (67) is arranged between the current limiting plate (64) and the limiting plate (66).
6. The large-scale building central air conditioning air purifying system according to claim 2, wherein: the open end of the perforation (65) is provided with a chamfer.
7. The large-scale building central air conditioning air purification system according to claim 1, wherein: a plurality of guide cylinders (311) are fixedly connected to the partition plate (31), and one ends, close to the partition plate (31), of the first lower soft bag (51) and the second upper soft bag (42) are fixedly connected to the inner wall of the guide cylinders (311).
8. The large-scale building central air conditioning air purification system according to claim 1, wherein: the side vibration reduction installation mechanism comprises a telescopic rod (71) and an elastic piece (72) sleeved outside the telescopic rod (71), one end of the telescopic rod (71) is hinged with the inner wall of the installation frame (3), and the other end of the telescopic rod is hinged with the air supply circulating fan (11) or the air return circulating fan (21).
9. The large-scale building central air conditioning air purifying system according to claim 8, wherein: the telescopic rod (71) is obliquely arranged, and the two ends of the telescopic rod (71) are fixedly connected with sheaths (73) sleeved at the ends of the elastic pieces (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
|---|---|---|---|
| CN202210049337.6A CN114484633B (en) | 2022-01-17 | 2022-01-17 | Air purifying system of central air conditioner for large building |
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| CN114484633A CN114484633A (en) | 2022-05-13 |
| CN114484633B true CN114484633B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210049337.6A Active CN114484633B (en) | 2022-01-17 | 2022-01-17 | Air purifying system of central air conditioner for large building |
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| CN114484633A (en) | 2022-05-13 |
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