CN114562779A - Building energy-saving ventilation system - Google Patents
Building energy-saving ventilation system Download PDFInfo
- Publication number
- CN114562779A CN114562779A CN202210186533.8A CN202210186533A CN114562779A CN 114562779 A CN114562779 A CN 114562779A CN 202210186533 A CN202210186533 A CN 202210186533A CN 114562779 A CN114562779 A CN 114562779A
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- Prior art keywords
- rack
- box body
- air outlet
- frame
- wind
- Prior art date
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Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims description 16
- 238000005096 rolling process Methods 0.000 claims 1
- 239000011324 bead Substances 0.000 description 10
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 7
- 235000017491 Bambusa tulda Nutrition 0.000 description 7
- 241001330002 Bambuseae Species 0.000 description 7
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 7
- 239000011425 bamboo Substances 0.000 description 7
- 241000883990 Flabellum Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- F24F7/007—Ventilation with forced flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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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
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
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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
- F24F13/20—Casings or covers
-
- 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
- F24F13/32—Supports for air-conditioning, air-humidification or ventilation units
-
- 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
- F24F13/20—Casings or covers
- F24F2013/205—Mounting a ventilator fan therein
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Flow Control Members (AREA)
Abstract
The invention discloses a building energy-saving ventilation system, which comprises a box body, wherein the side wall of the lower end of the box body is provided with an air outlet, an air outlet cylinder is arranged at the air outlet, the upper end of the box body is provided with a shielding shed, a height adjusting device is arranged below the shielding shed, the upper end inside the box body is provided with a supporting frame, the middle of the supporting frame is rotatably provided with a cylindrical rod frame, a wind shield is fixedly arranged on the cylindrical rod frame, a rotation control device is arranged below the cylindrical rod frame, the wind shield, a guide plate and the rotation control device are arranged, so that when wind is blown, in order to save energy, wind energy and wind direction are fully utilized, an electric telescopic rod can be started, the electric telescopic rod pushes a second rack, the second rack drives the cylindrical rod frame and the wind shield to rotate through a second gear, the wind shield faces the wind direction, the wind is blown on the wind shield, and simultaneously, the wind enters the box body under the action of the guide plate, the wind energy is fully utilized, and the consumption of electric energy is reduced.
Description
Technical Field
The invention relates to the technical field of building ventilation devices, in particular to a building energy-saving ventilation system.
Background
Ventilation is a building environment control technology which controls the spread and harm of air pollutants by means of ventilation dilution or ventilation removal and the like, and realizes the quality guarantee of indoor and outdoor air environments. The ventilation system is a complete set of devices for realizing the ventilation function and comprises an air inlet, an air outlet, an air supply pipeline, a fan, a cooling and heating device, a filter, a control system and other accessory equipment.
The existing ventilation device is generally driven by electric power, natural wind energy and weather conditions are not utilized, if the ventilation device is used for blowing wind, the weather conditions are fully utilized, the wind is guided into the ventilation device and then enters a building, the consumption of the electric energy can be reduced, and the energy-saving effect is achieved.
To this end, the invention provides a building energy-saving ventilation system for solving the problems.
Disclosure of Invention
The invention aims to provide an energy-saving ventilating system for buildings, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a building energy-saving ventilation system, the power distribution box comprises a box body, the air outlet has been seted up to the lower extreme lateral wall of box, air outlet department is equipped with an air outlet section of thick bamboo, be equipped with the motor in the middle of the inside of box, install the flabellum in the pivot of motor, the dead lever is installed to the lateral wall of motor, the tip fixed mounting of dead lever is on the inner wall of box, the upper end of box is equipped with shelters from the canopy, the inner wall symmetry that shelters from the canopy is installed and is gone up the bracing piece, it pegs graft in under bracing section of thick bamboo to go up the bracing piece, under bracing section of thick bamboo passes through the fixed block and installs the side at the box, shelter from and be equipped with height adjusting device below the canopy, the support frame is installed to the inside upper end of box, the middle rotation of support frame installs cylinder pole frame, fixed mounting has the deep bead on the cylinder pole frame, be equipped with rotation control device below the cylinder pole frame.
Preferably, an ear block is welded in the middle of the side edge of the air outlet cylinder, a bolt is installed on the ear block in a threaded mode, and the air outlet cylinder is fixedly installed on the side wall of the lower end of the box body through the bolt.
Preferably, the air outlet barrel of the box body is provided with a sealing groove, the end face of the air outlet barrel is integrally provided with a sealing strip, and the sealing strip is matched with the sealing groove.
Preferably, the wind shield is trapezoidal, and the guide plate is obliquely installed at the upper end of the wind shield.
Preferably, the lateral wall symmetry of cylinder pole frame installs the track pole, and fixed mounting has spacing on the track pole, and the deep bead passes through spacing card on the track pole card, and the gyro wheel is installed at the both ends of track pole, and the gyro wheel rolls and installs in the track intra-annular, and the track ring fixed mounting is on the inner wall of box.
Preferably, the rotation control device is composed of a second gear, a second rack, an electric telescopic rod and a box body, the second gear is fixedly installed at the bottom of the cylindrical rod frame, the second rack is arranged on one side of the second gear and meshed with the second gear, one end of the second rack is installed on the electric telescopic rod, the electric telescopic rod is installed in the box body, and the box body is vertically installed on the inner wall of the box body.
Preferably, height adjusting device comprises rack plate, rack one, gear one, dwang and handlebar ring, and rack plate fixed symmetry installs on the lateral wall of box, and sliding mounting has rack one in the rack plate, and the upper end fixed mounting of rack one is on sheltering from the inner wall of canopy, and one side of rack plate is equipped with the dwang, and the dwang passes the box, and rotates and install on the box, and gear one is installed at the both ends of dwang, and gear one meshes with rack one mutually, and the one end fixed mounting of dwang has the handlebar ring.
Preferably, the locating hole has been seted up to the lateral wall of rack one, the locating hole is provided with the multiunit, be sharp equidistance array from top to bottom, the lateral wall of rack board is equipped with rack locating component, rack locating component comprises U type frame, locating pin, pull ring, spring and spacing ring, U type frame fixed mounting is on the lateral wall of rack board, it has the locating pin to peg graft in the U type frame, the locating pin passes the lateral wall of rack board and pegs graft in the locating hole, the spring has been cup jointed on the locating pin, the one end of spring is equipped with the spacing ring, the spacing ring is installed on the locating pin, the tip movable mounting of locating pin has the pull ring.
Preferably, the end surface of the positioning pin is provided with a cylindrical groove, and a plug pin is inserted in the cylindrical groove.
Compared with the prior art, the invention has the beneficial effects that:
1. through having set up the deep bead, and the guide plate has been installed on the deep bead, rotation control device has been set up below the deep bead, make when the wind, in order to the energy can be saved, make full use of wind energy and wind direction, can start electric telescopic handle, electric telescopic handle will promote rack two, rack two will drive the rotation of cylindrical bar frame and deep bead through gear two, make the deep bead face the wind direction, wind blows on the deep bead like this, simultaneously under the effect of guide plate, make wind get into in the box, make full use of wind energy, the consumption of electric energy has been reduced.
Drawings
FIG. 1 is a perspective view of the structure of the present invention from a first perspective;
FIG. 2 is a perspective view of the structure of the present invention from a second perspective;
FIG. 3 is an exploded view of a portion of the present invention;
FIG. 4 is a perspective view of a portion of the present invention;
fig. 5 is a partial structural sectional view of the present invention.
In the figure: the air conditioner comprises a box body 1, a sealing groove 101, an air outlet barrel 2, a sealing strip 201, an ear block 3, a bolt 4, a shading shed 5, an upper supporting rod 6, a lower supporting barrel 7, a fixing block 71, a rack plate 8, a rack I9, a gear I10, a rotating rod 11, a handle ring 12, a positioning hole 13, a U-shaped frame 14, a positioning pin 15, a pull ring 16, a spring 17, a limiting ring 18, a plug pin 19, a motor 20, a fixing rod 21, fan blades 22, a wind shield 23, a guide plate 24, a cylindrical rod frame 25, a supporting frame 26, a track rod 27, a limiting frame 271, a roller 28, a track ring 29, a gear II 30, a rack II 31, an electric telescopic rod 32 and a box body 33.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below. The embodiments of the present invention, and all other embodiments obtained by a person of ordinary skill in the art without any inventive work, belong to the scope of protection of the present invention.
Referring to fig. 1 to 4, the present invention provides a technical solution: the utility model provides a building energy-saving ventilation system, the power distribution box comprises a box body 1, the air outlet has been seted up to the lower extreme lateral wall of box 1, air outlet department is equipped with an air outlet section of thick bamboo 2, be equipped with motor 20 in the middle of box 1's inside, install flabellum 22 in motor 20's the pivot, dead lever 21 is installed to motor 20's lateral wall, the tip fixed mounting of dead lever 21 is on box 1's inner wall, box 1's upper end is equipped with shelters from canopy 5, shelter from canopy 5's inner wall symmetry and install bracing piece 6, it pegs graft in under bracing piece 7 to go up bracing piece 6, under bracing piece 7 passes through fixed block 71 and installs the side at box 1, be equipped with high adjusting device below sheltering from canopy 5, support frame 26 is installed to box 1's inside upper end, cylindrical rod frame 25 is installed in the middle rotation of support frame 26, fixed mounting has deep bead 23 on the cylindrical rod frame 25, be equipped with rotation control device below cylindrical rod frame 25.
The middle of the side of the air outlet barrel 2 is welded with an ear block 3, a bolt 4 is installed on the ear block 3 in a threaded mode, and the air outlet barrel 2 is fixedly installed on the side wall of the lower end of the box body 1 through the bolt 4.
Rotation control device is by gear two 30, rack two 31, electric telescopic handle 32 and box body 33 are constituteed, gear two 30 fixed mounting is in the bottom of cylindrical bar frame 25, one side of gear two 30 is equipped with rack two 31, rack two 31 and two 30 meshes mutually of gear, the one end of rack two 31 is installed on electric telescopic handle 32, electric telescopic handle 32 installs in box body 33, box body 33 is installed perpendicularly on the inner wall of box 1, in the use, just can be through controlling electric telescopic handle 32, make the flexible different length of electric telescopic handle 32, just so can make gear two 30 drive deep bead 23 and rotate different angles, face the wind direction, pour the wind into in the box 1.
Height adjusting device is by rack plate 8, rack 9, gear 10, dwang 11 and handle ring 12 are constituteed, rack plate 8 fixed symmetry is installed on the lateral wall of box 1, slidable mounting has rack 9 in the rack plate 8, the upper end fixed mounting of rack 9 is on sheltering from the inner wall of canopy 5, one side of rack plate 8 is equipped with dwang 11, dwang 11 passes box 1, and rotate and install on box 1, gear 10 is installed at the both ends of dwang 11, gear 10 meshes with rack 9 mutually, the one end fixed mounting of dwang 11 has handle ring 12, when using, it rotates to drive dwang 11 through handle ring 12, just can drive rack 9 up-and-down motion through gear 10, the control shelters from the lift of canopy 5.
The side wall of the first rack 9 is provided with a positioning hole 13, the positioning holes 13 are provided with a plurality of groups and are arrayed linearly at equal intervals, the side wall of the rack plate 8 is provided with a rack positioning assembly, the rack positioning assembly is composed of a U-shaped frame 14, a positioning pin 15, a pull ring 16, a spring 17 and a limiting ring 18, the U-shaped frame 14 is fixedly installed on the side wall of the rack plate 8, the positioning pin 15 is inserted in the U-shaped frame 14, the positioning pin 15 penetrates through the side wall of the rack plate 8 and is inserted in the positioning hole 13, the spring 17 is sleeved on the positioning pin 15, one end of the spring 17 is provided with the limiting ring 18, the limiting ring 18 is installed on the positioning pin 15, the pull ring 16 is movably installed at the end of the positioning pin 15, when the rack is used, the positioning pin 15 can be pulled through the pull ring 16, and the positioning pin 15 locks the first rack 9.
The cylindrical groove has been seted up on the tip surface of locating pin 15, and it has bolt 19 to peg graft in the cylindrical groove, when needs adjust sheltering from the height of canopy 5, will stimulate pull ring 16 for pull ring 16 drives locating pin 15 and extracts from locating hole 13, pegs graft bolt 19 in the cylindrical groove of locating pin 15 after that, and locating pin 15 just can not influence the lift of rack 9 like this.
The working principle is as follows: when the ventilation system is used, the motor 20 can drive the fan blades 22 to rotate, air is conveyed to the interior of a building through the box body 1 and the air outlet 2, when the height of the shielding shed 5 needs to be adjusted, the pull ring 16 is firstly pulled, the pull ring 16 drives the positioning pin 15 to be pulled out of the positioning hole 13, the bolt 19 is inserted into the cylindrical groove of the positioning pin 15, therefore, the positioning pin 15 cannot influence the lifting of the rack I9, then the handle ring 12 is rotated clockwise, the handle ring 12 drives the rotating rod 11 and the gear I10 to rotate, the rack I9 pushes the shielding shed 5 upwards, the height of the shielding shed 5 is changed, when the height is proper, the positioning pin 15 is inserted into the positioning hole 13 again, when wind is blown, in order to save energy, wind energy and fully utilize wind energy and wind direction, the electric telescopic rod 32 can be started, the electric telescopic rod 32 can push the rack II 31, the second rack 31 drives the cylindrical rod frame 25 and the wind shield 23 to rotate through the second gear 30, so that the wind shield 23 faces the wind direction, wind blows on the wind shield 23, and meanwhile, under the action of the guide plate 24, the wind enters the box body 1, and wind energy is fully utilized.
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 (9)
1. The utility model provides a building energy-saving ventilation system, includes box (1), its characterized in that: the air outlet is formed in the side wall of the lower end of the box body (1), an air outlet barrel (2) is arranged at the position of the air outlet, a motor (20) is arranged in the middle of the interior of the box body (1), fan blades (22) are installed on a rotating shaft of the motor (20), a fixing rod (21) is installed on the side wall of the motor (20), the end portion of the fixing rod (21) is fixedly installed on the inner wall of the box body (1), a shielding shed (5) is arranged at the upper end of the box body (1), upper supporting rods (6) are symmetrically installed on the inner wall of the shielding shed (5), the upper supporting rods (6) are inserted into lower supporting barrels (7), the lower supporting barrels (7) are installed on the side edge of the box body (1) through fixing blocks (71), a height adjusting device is arranged below the shielding shed (5), a supporting frame (26) is installed at the upper end of the interior of the box body (1), a cylindrical rod frame (25) is rotatably installed in the middle of the supporting frame (26), and a wind shield (23) is fixedly installed on the cylindrical rod frame (25), a rotation control device is arranged below the cylindrical rod frame (25).
2. The building energy-saving ventilating system of claim 1, wherein: the air outlet barrel (2) is provided with an ear block (3) welded in the middle of the side edge of the air outlet barrel (2), the ear block (3) is provided with a bolt (4) in a threaded manner, and the air outlet barrel (2) is fixedly arranged on the side wall of the lower end of the box body (1) through the bolt (4).
3. The building energy-saving ventilating system of claim 1, wherein: a sealing groove (101) is formed in the position of an air outlet barrel (2) of the box body (1), a sealing strip (201) is integrally arranged on the end face of the air outlet barrel (2), and the sealing strip (201) is matched with the sealing groove (101).
4. The building energy-saving ventilating system of claim 1, wherein: the wind shield (23) is in a trapezoidal shape, and the upper end of the wind shield (23) is obliquely provided with a guide plate (24).
5. The building energy-saving ventilating system of claim 1, wherein: the rail rod (27) is symmetrically installed on the side wall of the cylindrical rod frame (25), the limiting frame (271) is fixedly installed on the rail rod (27), the wind shield (23) is clamped on the rail rod (27) through the limiting frame (271), the rollers (28) are installed at two ends of the rail rod (27), the rollers (28) are installed in the rail ring (29) in a rolling mode, and the rail ring (29) is fixedly installed on the inner wall of the box body (1).
6. The building energy-saving ventilating system of claim 1, wherein: the rotation control device is composed of a second gear (30), a second rack (31), an electric telescopic rod (32) and a box body (33), the second gear (30) is fixedly installed at the bottom of the cylindrical rod frame (25), the second rack (31) is arranged on one side of the second gear (30), the second rack (31) is meshed with the second gear (30), one end of the second rack (31) is installed on the electric telescopic rod (32), the electric telescopic rod (32) is installed in the box body (33), and the box body (33) is vertically installed on the inner wall of the box body (1).
7. The building energy-saving ventilating system of claim 1, wherein: height adjusting device comprises rack plate (8), rack (9), gear (10), dwang (11) and handlebar ring (12), rack plate (8) fixed symmetry is installed on the lateral wall of box (1), slidable mounting has rack (9) in rack plate (8), the upper end fixed mounting of rack (9) is on sheltering from the inner wall of canopy (5), one side of rack plate (8) is equipped with dwang (11), dwang (11) pass box (1), and rotate and install on box (1), gear (10) are installed at the both ends of dwang (11), gear (10) mesh with rack (9) mutually, the one end fixed mounting of dwang (11) has handlebar ring (12).
8. The building energy-saving ventilating system of claim 7, wherein: locating hole (13) have been seted up to the lateral wall of rack (9), locating hole (13) are provided with the multiunit, be sharp equidistance array from top to bottom, the lateral wall of rack board (8) is equipped with rack locating component, rack locating component is by U type frame (14), locating pin (15), pull ring (16), spring (17) and spacing ring (18) are constituteed, U type frame (14) fixed mounting is on the lateral wall of rack board (8), it has locating pin (15) to peg graft in U type frame (14), locating pin (15) pass the lateral wall of rack board (8) and peg graft in locating hole (13), spring (17) have been cup jointed on locating pin (15), the one end of spring (17) is equipped with spacing ring (18), spacing ring (18) are installed on locating pin (15), the tip movable mounting of locating pin (15) has pull ring (16).
9. The building energy-saving ventilating system of claim 1, wherein: the end surface of the positioning pin (15) is provided with a cylindrical groove, and a plug pin (19) is inserted in the cylindrical groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210186533.8A CN114562779B (en) | 2022-02-28 | 2022-02-28 | Energy-saving ventilation system for building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210186533.8A CN114562779B (en) | 2022-02-28 | 2022-02-28 | Energy-saving ventilation system for building |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114562779A true CN114562779A (en) | 2022-05-31 |
| CN114562779B CN114562779B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210186533.8A Active CN114562779B (en) | 2022-02-28 | 2022-02-28 | Energy-saving ventilation system for building |
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| Country | Link |
|---|---|
| CN (1) | CN114562779B (en) |
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| CN212838502U (en) * | 2020-08-24 | 2021-03-30 | 江西大地走红伞业有限公司 | Heat-insulation cooling fan umbrella with solar energy |
| CN112503009A (en) * | 2020-11-19 | 2021-03-16 | 浙江上风高科专风实业股份有限公司 | Lightweight, efficient, energy-saving and explosion-proof roof fan system for steam turbine room of nuclear power plant |
| CN113600467A (en) * | 2021-08-04 | 2021-11-05 | 宿州市恒新立智能科技有限公司 | Medical medicine classification recovery device based on peculiar smell purification mechanism |
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