CN109959085A - A kind of fresh air system with preheating and humidifying function - Google Patents
A kind of fresh air system with preheating and humidifying function Download PDFInfo
- Publication number
- CN109959085A CN109959085A CN201711402525.8A CN201711402525A CN109959085A CN 109959085 A CN109959085 A CN 109959085A CN 201711402525 A CN201711402525 A CN 201711402525A CN 109959085 A CN109959085 A CN 109959085A
- Authority
- CN
- China
- Prior art keywords
- preheating
- humidifying
- economizer bank
- air supply
- humidifying section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
-
- 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
- F24F3/14—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 humidification; by dehumidification
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/34—Heater, e.g. gas burner, electric air heater
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Humidification (AREA)
Abstract
The invention discloses a kind of fresh air system with preheating and humidifying function, including air supply duct, air supply duct is equipped with preheating and humidifying section, preheating and humidifying section inner surface is equipped with economizer bank and heater, heater is evenly spaced to be mounted between preheating and humidifying section and economizer bank, preheating and humidifying section inner surface is equipped with thermal insulation layer, the first threaded hole is equipped on the both ends of preheating and humidifying section and economizer bank, slideway bar is equipped in the air supply duct at preheating and humidifying section both ends, movable pulley is installed in slideway bar, the center of movable pulley is connect by L-type push-pull rod with preheating and humidifying section, the inner surface of economizer bank is equipped with humidification water tank, the quadrangle of humidification water tank is equipped with triangle fixinig plate, the second threaded hole is equipped on triangle fixinig plate and economizer bank, it humidifies water tank upper surface and is equipped with vapor outlet port, this programme is compact-sized, design is reasonable, in fresh air system Middle addition preheating and humidifying function, effectively changes indoor temperature and humidity.
Description
Technical field
The present invention relates to fresh air system technical field, specially a kind of fresh air system with preheating and humidifying function.
Background technique
The most common method that general family carries out changing wind processing is exactly to open a window, but windowing will lead to air turbulence, can
The peculiar smell in toilet and kitchen can be brought into parlor and bedroom;There may be peculiar smell " reverse irrigation " phenomenons for toilet vertical shaft;It is outdoor empty
The a large amount of outdoor dust of gas entrainment, influence indoor cleaning health;The noise for making us irritated is not can avoid also;Heating will cause greatly
The energy waste of amount, the waste of electricity.For these reasons, it is divulged information by the way of windowing, quality of the life will have a greatly reduced quality.
There is the fresh air system that many families use in existing market, and fresh air system is special according to using in closed indoor side
Fresh air is sent to interior with equipment, then from the other side from special equipment to outdoor discharge, will form " fresh air field of flow " indoors, from
And meet the needs of indoor fresh air ventilating, it is forced from the other side with the exhaust fan specially designed to the mode of outdoor discharge and is being
Formation fresh air field of flow in system, a set of independent air processing system that fresh air system is made of supply air system and exhaust system,
It is divided into duct type fresh air system and without two kind of pipeline fresh air system.Duct type fresh air system is by new blower and pipe fitting group
At entering interior by new blower clean room outer space conductance, room air be discharged by pipeline;Without pipeline fresh air system by fresh air
Machine composition, equally enters interior by new blower clean room outer space conductance.Comparatively duct type fresh air system due to project amount greatly more
It is suitble to industry or large area Office Area to use, and without pipeline fresh air system because easy for installation, it is more suitable for family's use.
General fresh air system is while air-supply to the air entered the room into filtering, go out poison, sterilization, oxygenation, preheating (winter
It), but there are following two points in current supply air system:
(1) for humidification function is not added when the pre-heat treatment, since the weather in winter is originally dry, lead to indoor sky
Gas is dry, causes body very thirsty, and using effect is bad, and is also unsuitable for people's use;
(2) the pre-heat treatment is not easy to the maintenance and update in later period, substantially reduces making for fresh air system in air supply duct integration
Use the service life.
Summary of the invention
In order to overcome the shortcomings of that prior art, the present invention provide a kind of fresh air system with preheating and humidifying function,
Structure of the invention is compact, and design rationally, adds preheating and humidifying function in fresh air system, when being replaced to room air,
Also effectively change indoor temperature and humidity, while not influencing normally to change wind function, in addition warm-up phase can with entirely give
Air piping separation, while good airproof performance is easy to operate, and economizer bank can be dismantled and fixed with preheating and humidifying section, convenient for the later period to adding
The maintenance and update of hot device and humidification water tank, can effectively solve the problems, such as to mention in background technique.
The technical solution adopted by the present invention to solve the technical problems is: a kind of fresh air system with preheating and humidifying function
System, including air supply duct, the air supply duct are equipped with preheating and humidifying section, the preheating and humidifying section inner surface be equipped with economizer bank and
Heater, the trapezoidal structure of economizer bank, the heater is evenly spaced to be mounted on the preheating and humidifying section and economizer bank
Between, the preheating and humidifying section inner surface is equipped with thermal insulation layer, if being equipped on the both ends of the preheating and humidifying section and economizer bank
Dry first threaded hole, the air supply duct at preheating and humidifying section both ends is interior to be equipped with slideway bar, is equipped with sliding in the slideway bar
Wheel, the center of the movable pulley is linked together by L-type push-pull rod and the side of the preheating and humidifying section;
The inner surface of the economizer bank is equipped with humidification water tank, and the four corners point of the humidification water tank are equipped with triangle and fix
Piece, the second threaded hole is equipped on the triangle fixinig plate and economizer bank, and the humidification water tank is separately mounted to the bottom of economizer bank
Portion and two sides, the humidification water tank upper surface are equipped with vapor outlet port, and the humidification water tank is circumscribed with water intake mechanism.
It is equipped with as a preferred technical solution of the present invention, between the both ends and air supply duct of the preheating and humidifying section close
Seal, the sealing ring are strip, and the length of the sealing ring is greater than the perimeter of the air supply duct, the two of the sealing ring
End is equipped with fixing buckle and connects the bone-shaped circle of two fixing buckles, and the both ends of the sealing ring are additionally provided with adhesive strip.
As a preferred technical solution of the present invention, the outside of the preheating and humidifying section is equipped with handle, the handle with
Preheating and humidifying section outer surface is hinged, and the handle is curve-like.
As a preferred technical solution of the present invention, the air supply duct inner surface has additional anti-condensation cut-layer.
As a preferred technical solution of the present invention, the outer surface of the economizer bank is equipped with carbon fiber layer.
As a preferred technical solution of the present invention, the trapezoidal structure of economizer bank, the interconnecting piece of the economizer bank
Dividing is in smooth streamlined structure.
As a preferred technical solution of the present invention, the slideway bar is in the transverse center position of air supply duct, institute
The both ends for stating slideway bar are fixedly mounted on the inner surface of the air supply duct, and the slideway bar is by two parallel rail rods groups
At the both ends of the rail rods are also connected with limit plate.
Compared with prior art, the beneficial effects of the present invention are:
(1) structure of the invention is compact, and design rationally, preheating and humidifying function is added in fresh air system, is carried out to room air
When replacement, also effectively change indoor temperature and humidity, while not influencing normally to change wind function;
(2) warm-up phase in the present invention can be separated with entire air supply duct, while good airproof performance, and easy to operate, economizer bank can
It is dismantled with preheating and humidifying section and fixed, the maintenance and update convenient for the later period to heater and humidification water tank.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention;
Fig. 2 is preheating and humidifying segment structure schematic diagram of the invention;
Fig. 3 is ring structure schematic diagram of the invention;
Fig. 4 is preheating pipe fixation structure schematic diagram of the invention.
In figure: 1- air supply duct;2- preheating and humidifying section;3- economizer bank;4- heater;5- thermal insulation layer;The first threaded hole of 6-;
7- slideway bar;8- movable pulley;9-L type push-pull rod;10- humidifies water tank;11- triangle fixinig plate;The second threaded hole of 12-;13- steam
Outlet;14- water intake mechanism;15- sealing ring;151- fixing buckle;152- bone-shaped circle;16- handle;The anti-condensation cut-layer of 17-;18- carbon fiber
Tie up layer;19- rail rods;20- limit plate.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The explanation of following embodiment be with reference to attached drawing, can be to the specific embodiment implemented to the example present invention.
The direction and position term that the present invention is previously mentioned, for example, "upper", " in ", "lower", "front", "rear", "left", "right", "inner", "
Outside ", " side " etc. is only direction and position with reference to annexed drawings.Therefore, the direction and position term used is to illustrate
And understand the present invention, rather than to limit the present invention.
Embodiment:
As shown in Figures 1 to 4, the present invention provides a kind of fresh air system with preheating and humidifying function, including the air supply tube
Road 1,1 inner surface of air supply duct have additional anti-condensation cut-layer 17, and the air supply duct 1 is equipped with preheating and humidifying section 2, in fresh air
Preheating is added in system, the anti-condensation cut-layer 17 is laid between the preheating and humidifying section 2 and air-supply entrance.
Sealing ring 15 is equipped between the both ends and air supply duct 1 of the preheating and humidifying section 2, the sealing ring 15 is strip
Shape, the length of the sealing ring 15 are greater than the perimeter of the air supply duct 1, and the both ends of the sealing ring 15 are equipped with fixing buckle
151 and connection two fixing buckles 151 bone-shaped circle 152, the both ends of the sealing ring 15 are additionally provided with adhesive strip 153, what is used
When, sealing ring 15 is arranged in the junction of the preheating and humidifying section 2 with air supply duct 1, using bone-shaped circle 152 by sealing ring
15 is fixed, while the fixed valve further fixed with air supply duct 1 is additionally provided in preheating and humidifying section 2, it is ensured that air supply duct 1
Stability only need to be by bone-shaped circle 152 and the fixing buckle when separating humid and hot humidifier section 2 with the air supply duct 1
151 separation, can be realized the disassembly of sealing ring 15, easy to operate, use is safe.
2 inner surface of preheating and humidifying section is equipped with economizer bank 3 and heater 4, and the outer surface of the economizer bank 3 is equipped with carbon fiber
Layer 18 is tieed up, carbon fiber is high intensity, the new fiber materials of high modulus fibre of a kind of phosphorus content 95% or more.It is by piece
The organic fibers such as shape graphite microcrystal are piled up along fiber axial direction, through micro crystal graphite obtained from carbonization and graphitization processing
Material.
Carbon fiber " soft outside but hard inside ", quality is lighter than metallic aluminium, but intensity is higher than steel, and has corrosion-resistant, Gao Mo
The characteristic of amount is all important materials in defence and military and civilian aspect.It not only has the intrinsic intrinsic property of carbon material, and simultaneous
The soft machinability of standby textile fabric, is reinforcing fiber of new generation.Carbon fiber has many excellent performances, the axis of carbon fiber
To intensity and modulus height, density is low, higher than performance, no creep, and superhigh temperature resistant under non-oxidizing atmosphere, fatigue durability is good, specific heat and
For electric conductivity between nonmetallic between metal, thermal expansion coefficient is small and has anisotropy, good corrosion resistance, X-ray transparent
It is good.Good electrical and thermal conductivity performance, electromagnetic wave shielding are good etc., and the stronger heating conduction of carbon fiber is mainly utilized in this programme
With superhigh temperature resistant so that the heat of heater 4 is quickly transmitted on the economizer bank 3, thus to the sky in preheating and humidifying section 2
Gas carries out the pre-heat treatment.
The coupling part of the trapezoidal structure of the economizer bank 3, the trapezoidal economizer bank 3 is in smooth streamlined structure,
On the one hand transmission resistance of the outdoor air in economizer bank 3 is reduced, the impact force to economizer bank 3 is on the other hand also reduced, thus
The stability and air for increasing structure transmit stability, the heater 4 is evenly spaced be mounted on the preheating and humidifying section 2 with
Between heating tube 3, the installation site of the heater 4 is close to the surface of the economizer bank 3,2 inner surface of preheating and humidifying section
It is equipped with thermal insulation layer 5, prevents the heat of the heater 4 from shedding, to improve heating efficiency, reduces energy loss, reinforces adding
Several first threaded holes 6 are equipped on thermal effect, the preheating and humidifying section 2 and the both ends of economizer bank 3, can be used for preheating and humidifying section
2 with the disassembly of economizer bank 3, and can be fixed by matched bolt, convenient for the later period to heater 4 and hereinafter humidification water tank 10
Maintenance and update.
Slideway bar 7 is equipped in the air supply duct 1 at 2 both ends of preheating and humidifying section, the slideway bar 7 is in preheating and humidifying section
2 transverse center position, the slideway bar 7 are made of two parallel rail rods, and the upper and lower surface of the slideway bar 7 is also in light
Slip-stream line style, is equipped with track slide for movable pulley 8 inside the slideway bar 7, the both ends of the slideway bar 7 by bolt in advance
Heat pipe 3 is fixedly connected, and movable pulley 8 is equipped in the slideway bar 7, and the center of the movable pulley 8 passes through L-type push-pull rod 9
It links together with the side of the preheating and humidifying section 2, one end of the slideway bar 7 is equipped with identical with 9 length of L-type push-pull rod
Baffle, to preheating and humidifying section 2 and air supply duct are completely in a plane, one side good airproof performance, on the other hand
Also facilitate the fixation of sealing ring 15.
The inner surface of the economizer bank 3 is equipped with humidification water tank 10, increases humidification function newly in fresh air system, and utilize
Above-mentioned heating function is evaporated the water in humidification water tank 10, and the four corners point of the humidification water tank 10 are equipped with three
Angle fixinig plate 11 is equipped with the second threaded hole 12 on the triangle fixinig plate 11 and economizer bank 3,12 He of the second threaded hole can be used
Corresponding bolt will humidify water tank 10 and the economizer bank 3 is fixed, and the humidification water tank 10 is separately mounted to the bottom of economizer bank 3
With two sides, 10 upper surface of humidification water tank is equipped with vapor outlet port 13, and the humidification water tank 10 is circumscribed with water intake mechanism 14.
Preferably, the outside of the preheating and humidifying section 2 is equipped with handle 16, the handle 16 and 2 appearance of preheating and humidifying section
Face is hinged, and the handle 16 is curve-like, and the push-and-pull of preheating and humidifying section 2 is facilitated to use, while articulated connection can also save
Save space.
Specific work process of the invention is as follows:
(1) when progress preheating and humidifying in use, being fixed sealing ring 15 is passed through between preheating and humidifying section 2 and air supply duct 1, then
Start heater 4, heater 4 heats the air in preheating and humidifying section 2 first, and the water humidified in water tank 10 is heated
Evaporation, while again to the humidification process first of the air in preheating and humidifying section 2;
(2) when the component in preheating and humidifying section 2 when something goes wrong, sealing ring 15 is opened, using handle 17, by preheating and humidifying section
2 are slided in slideway bar 7 by L-type push-pull rod 9, are realized the separation of preheating and humidifying section 2, are passed through the first threaded hole 6 and the second spiral shell
Pit 12 realizes the maintenance and update to heater 4 and humidification water tank 10.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (7)
1. a kind of fresh air system with preheating and humidifying function, it is characterised in that: including air supply duct (1), the air supply duct
(1) preheating and humidifying section (2) are equipped with, preheating and humidifying section (2) inner surface is equipped with economizer bank (3) and heater (4), described to add
Hot device (4) is evenly spaced to be mounted between the preheating and humidifying section (2) and economizer bank (3), the interior table of the preheating and humidifying section (2)
Face is equipped with thermal insulation layer (5), is equipped with several first threaded holes on the both ends of the preheating and humidifying section (2) and economizer bank (3)
(6), slideway bar (7) are equipped in the air supply duct (1) at preheating and humidifying section (2) both ends, cunning is installed in the slideway bar (7)
The center of driving wheel (8), the movable pulley (8) is connect by L-type push-pull rod (9) with the side of the preheating and humidifying section (2)
Together;
The inner surface of the economizer bank (3) is equipped with humidification water tank (10), the four corners point installation of humidification water tank (10)
Have triangle fixinig plate (11), is equipped with the second threaded hole (12), the humidification on the triangle fixinig plate (11) and economizer bank (3)
Water tank (10) is separately mounted to the bottom and two sides of economizer bank (3), and humidification water tank (10) upper surface goes out equipped with steam
Mouth (13), the humidification water tank (10) are circumscribed with water intake mechanism (14).
2. a kind of fresh air system with preheating and humidifying function according to claim 1, it is characterised in that: the preheating adds
Sealing ring (15) are equipped between wet section (2) of both ends and air supply duct (1), the sealing ring (15) is strip, the sealing
Enclose (15) length be greater than the air supply duct (1) perimeter, the both ends of the sealing ring (15) be equipped with fixing buckle (151) and
The bone-shaped circle (152) of two fixing buckles (151) is connected, the both ends of the sealing ring (15) are additionally provided with adhesive strip (153).
3. a kind of fresh air system with preheating and humidifying function according to claim 1, it is characterised in that: the preheating adds
The outside of wet section (2) is equipped with handle (16), and the handle (16) and preheating and humidifying section (2) outer surface are hinged, and described
Hand (16) is curve-like.
4. a kind of fresh air system with preheating and humidifying function according to claim 1, it is characterised in that: the air supply tube
Road (1) inner surface has additional anti-condensation cut-layer (17).
5. a kind of fresh air system with preheating and humidifying function according to claim 1, it is characterised in that: the economizer bank
(3) outer surface is equipped with carbon fiber layer (18).
6. a kind of fresh air system with preheating and humidifying function according to claim 1, it is characterised in that: the economizer bank
(3) coupling part of trapezoidal structure, the economizer bank (3) is in smooth streamlined structure.
7. a kind of fresh air system with preheating and humidifying function according to claim 1, it is characterised in that: the slideway bar
(7) it is in the transverse center position of air supply duct (1), the both ends of the slideway bar (7) are fixedly mounted on the air supply duct
(1) inner surface, the slideway bar (7) are made of two parallel rail rods (19), and the both ends of the rail rods (19) also connect
It is connected to limit plate (20).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711402525.8A CN109959085A (en) | 2017-12-22 | 2017-12-22 | A kind of fresh air system with preheating and humidifying function |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711402525.8A CN109959085A (en) | 2017-12-22 | 2017-12-22 | A kind of fresh air system with preheating and humidifying function |
Publications (1)
Publication Number | Publication Date |
---|---|
CN109959085A true CN109959085A (en) | 2019-07-02 |
Family
ID=67019000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201711402525.8A Withdrawn CN109959085A (en) | 2017-12-22 | 2017-12-22 | A kind of fresh air system with preheating and humidifying function |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109959085A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113883618A (en) * | 2021-09-02 | 2022-01-04 | 祝雯倩 | Fan capable of adjusting indoor humidity |
-
2017
- 2017-12-22 CN CN201711402525.8A patent/CN109959085A/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113883618A (en) * | 2021-09-02 | 2022-01-04 | 祝雯倩 | Fan capable of adjusting indoor humidity |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN109959085A (en) | A kind of fresh air system with preheating and humidifying function | |
CN108386312A (en) | Combined indoor renews wind turbine and wind generator system | |
CN201463148U (en) | Solar fresh-air air purifying and humidifying machine | |
CN202281313U (en) | Fan filter unit with temperature regulation function | |
CN204693544U (en) | A kind of inclined tube-type preheater for kitchen use | |
CN208692004U (en) | North cold area ventilated energy-saving type pig house | |
CN208691992U (en) | Heat preservation ventilating pig house | |
CN208671243U (en) | A kind of conditioner | |
CN208704021U (en) | A kind of hot air type gas heating stove recycling steam humidification | |
CN208170569U (en) | A kind of half centralized independent temperature-humidity control system | |
CN109682003A (en) | A kind of radiator heating device with fresh air | |
CN214791691U (en) | Energy-saving ventilation system for house | |
CN207299367U (en) | Single tube convection type heat exchanges fresh air-changing device | |
CN109386973A (en) | Roll over the new air -return duct partition type solar energy air heat collector of shape spoiler and heating system | |
CN215112993U (en) | Ventilation exchange device for occupational health | |
CN206073254U (en) | A kind of suspended ceiling device of reinforcing radiation cooling/heating supply top board heat exchange | |
CN212720135U (en) | Fresh air humidifying system | |
CN212806631U (en) | Water-saving and energy-saving fog-dispersing cooling tower | |
CN208620514U (en) | Central total-heat exchanger | |
CN206974232U (en) | A kind of novel wet membrane type closed cooling tower | |
CN111735323A (en) | Fog dispersal cooling tower | |
CN208504637U (en) | A kind of fresh breeze device for building | |
CN106016574A (en) | Heat recovery fresh air fan | |
CN205939587U (en) | Air purifier is with annular pressure boost wind channel and high -efficient hot transition system | |
CN207515127U (en) | With reference to the cold supply system of solar chimney and evaporation cooling cold wind tower |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
WW01 | Invention patent application withdrawn after publication | ||
WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190702 |