CN101105318A - Hydrokinetic type supersonic wave air-conditioning spray chamber - Google Patents
Hydrokinetic type supersonic wave air-conditioning spray chamber Download PDFInfo
- Publication number
- CN101105318A CN101105318A CNA2007100184861A CN200710018486A CN101105318A CN 101105318 A CN101105318 A CN 101105318A CN A2007100184861 A CNA2007100184861 A CN A2007100184861A CN 200710018486 A CN200710018486 A CN 200710018486A CN 101105318 A CN101105318 A CN 101105318A
- Authority
- CN
- China
- Prior art keywords
- air
- spray chamber
- barrel
- target plate
- water
- 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.)
- Granted
Links
Images
Landscapes
- Special Spraying Apparatus (AREA)
Abstract
The invention discloses a hydrodynamic ultrasonic water spraying chamber for air conditioner, which comprises a housing, wherein an axial flow fan, a diversion grid, a spraying plate are sequentially equipped inside the housing according to the direction of inlet air, and a plurality of spraying nozzles and mangers are equipped on the spraying plate. The chamber also comprises a water supply system, and an air compression system. The spraying nozzle comprises two assembled cylinder walls forming an internal passage and an external passage, the walls of the internal passage and external passage are communicated at certain site, a target plate is equipped at the air outlet end of the two cylinder walls and perpendicular with the walls, the target plate is spaced with the port of the wall, and a triangle pyramid is equipped on the site of the target plate corresponding to the air outlet port of the wall. The invention integrally utilizes ultrasonic agglomeration, coagulation and collision detention three action principles to improve the structure, so as to remarkably improve the purification efficiency and heat transfer and mass transfer efficiency of sub-micron level dust in the air.
Description
Technical field
The invention belongs to the air conditioner refrigerating technical field, relate to a kind of spray chamber of idle call, be specifically related to a kind of Hydrokinetic type supersonic wave air-conditioning spray chamber.
Background technology
Spray chamber is the hot wet treatment apparatus of direct contact type that adopts the earliest in the central air conditioner system.It is except realizing multiple heat, the procedure for wet processing that the while can also the washing, purifying air.At present, handling the big occasion of air quantity weaving, tobacco etc. still uses in a large number.From the dedusting air cleaning performance, spray chamber is equivalent to a wet scrubber merely, for size ratio bigger dust and fiber, washing and filtering effect is preferably arranged, and still for the fine dust of submicron order, clean-up effect is very low.
At present, micronic dust is very big to industrial production and workers'health influence, a difficult problem---" coal-dust stained yarn " phenomenon that occurs in producing as textile mills, and spindle is contaminated owing to high speed rotation generation static adsorbs fine flue dust, and is very big to the quality influence of textile product.Secondly the harm face of various dust is more extensive in the industrial production, and the factories and miness more than 1/2 all exist dust work according to statistics.Dust many types are arranged.In the inorganic dust: as silicious dust (quartz dust), asbestos dirt, coal dust, metallic dust, cement dust, abrasive dust etc., harm to health is particularly serious, mainly show as and make lungs generation fibrillatable, alveolar is filled, ventilatory is subjected to obstacle, and cough, uncomfortable in chest, symptom such as breathe hard are arranged.
Spray chamber is a wet scrubber, and thick dust makes grit and drop, grit and liquid film come in contact, and then makes grit humidification, weightening finish by inertial collision, contact detention effect, lands at last and remove among the pond or by water fender.But for the fine dust that causes " coal-dust stained yarn " phenomenon, because the dust specific area is very big, easily adsorbed gas forms one deck air film on its surface, has therefore hindered dust and has directly contacted with water droplet, makes that dust can not wetted back washing and depositing.Therefore, existing spray chamber structure is also powerless for the fine dust of above-mentioned submicron order.
Summary of the invention
The purpose of this invention is to provide a kind of Hydrokinetic type supersonic wave air-conditioning spray chamber, start with, improved the efficient of spray chamber dedusting, solved the defective of existing spray chamber fine dust clean-up effect difference from the structure of optimizing spray chamber.
The technical solution adopted in the present invention is, Hydrokinetic type supersonic wave air-conditioning spray chamber, comprise shell, be disposed with axial flow blower by the air intake direction in the shell, the water conservancy diversion grid, spray row goes up a plurality of nozzles and the water fender that is provided with, also comprise water system and air compression system, its characteristics are, nozzle wherein comprises the cylinder barrel of two phase suits, the cylinder barrel of two phase suits forms internal channel and outer tunnel, and internal channel and outer tunnel communicate in the somewhere of barrel, the perpendicular target plate that is provided with of one end of two cylinder barrels air-out and barrel is separated with certain distance between target plate and barrel port, is provided with pyrometric cone with barrel air outlet corresponding section on the target plate.
Characteristics of the present invention also are,
Shell wherein is the individual layer cylindrical shape, liner or outsourcing insulation material.
Water conservancy diversion grid wherein is rotary, is become by a plurality of horizontal rectangle vane group that are parallel to each other, and laterally is provided with a plurality of vertical rectangular paddle that are parallel to each other before the rectangular paddle.
Water fender wherein is by being that the radial blade in axle center is formed with the rotating shaft, and blade becomes certain angle of inclination each other.
Compare with traditional spray chamber, the present invention has following characteristics:
(1) ultrasonic nozzle of the present invention's employing has following characteristics with respect to conventional spout:
(i) atomizing effect is even, and single injector atomizing area is big;
(ii) the nozzle atomization angle is 180 °, and atomizing effect is good, and little droplet footpath is little.
These tangible characteristics have been saved the utilization of water resource to a great extent, have improved the utilization rate of water resource.Make the wet also more traditional to a great extent spray chamber of exchange rate of heat increase.
The application of Hydrokinetic-type ultrasonic nozzle makes the global design structure of spray chamber reduce greatly, because its single injector atomizing area is big, has saved the quantity of unit are top nozzle, and the design of spray chamber section is reduced greatly.Its less space hold rate is used for the clean section of filtration of air-conditioning, and more traditional spray chamber has tangible technical advantage again.
The application of Hydrokinetic-type ultrasonic nozzle is because the nozzle of its structure and other types is different.On traditional hydrokinetic type structure of nozzle basis, add pressure-air and induced the fluidic architecture of water, making high-velocity flow (or gas-water fluid-mixing) strike the center has and produces high-intensity ultrasonic wave on the target plate of outstanding pyrometric cone, thereby produce good atomizing effect, make the atomizing effect of nozzle reach controlled degree.
(2) circular steel plate outsourcing of thicker relatively individual layer or interior subsides insulation material structure are arrived in two-layer very thin plane steel plate folder insulation material structural change.Make the spray chamber compression capability strengthen greatly, because long-term the use, the external structure distortion is the main cause that traditional spray chamber leaks out.
(3) adopt the columnar shell of individual layer, the air-flow situation of circular configuration section, obviously good than traditional rectangular spray chamber, be mainly reflected in the eddy region of having eliminated on four angles of rectangle spray chamber, make that the processed air that flows through the water conservancy diversion grid is more even.The heat exchange effect at four angles is bad in the rectangle spray chamber, finds when the packing section of filtration in traditional spray chamber is simultaneously changed that the filler on four angles is partly a lot cleaner than middle filler part, and this also illustrates the existence of vortex, four angles.The global design of Hydrokinetic type supersonic wave air-conditioning spray chamber is circular end face, has effectively eliminated the problem that the rectangle end face exists in this respect.
(4) rotary water conservancy diversion grid has been eliminated the eddy region on four angles of traditional rectangular spray chamber, cooperates the spray chamber shell of cylindrical shell, makes the air that is cleaned that enters in the spray chamber be evenly distributed on the whole circular cross section.Rotary water conservancy diversion grid is to utilize high velocity air to drive the streamlined water conservancy diversion grid of rotation down, this water conservancy diversion grid, and current-sharing is effective, and can reduce air drag.
(5) the perfect combination of spray chamber shell of rotary water fender and cylindrical shell better improved the efficient that dewaters of water fender.Because Hydrokinetic type supersonic wave air-conditioning spray chamber is forced air-supply, utilizes and be pressed into air simultaneously, make rotary water fender not need extra driven by motor just can rotate automatically, played energy-conservation effect as power.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of spray chamber of the present invention;
Fig. 2 is the structural representation of water conservancy diversion grid among the present invention, and wherein, a is the sectional view of water conservancy diversion grid, and b is the arrangement schematic diagram of vertical rectangular paddle, and c is the Facad structure schematic diagram of water conservancy diversion grid;
Fig. 3 is the cutaway view of ultrasonic nozzle among the present invention, and wherein, a is a cutaway view, and b is a principle schematic;
Fig. 4 is the sectional view of rotary water fender among the present invention, and wherein, a is the sectional view of water fender, and b is the cross sectional representation of a.
Among the figure, 1. shell, 2. processed air mixing chamber, 3. axial flow blower, 4. water conservancy diversion grid, 5. nozzle, 6. spray row, 7. water fender, 8. water tank, 9. ball-cock assembly, 10. horizontal rectangular paddle, 11. vertical rectangular paddle, 12. internal channel, 13. outer tunnels, 14. target plates, 15. blades, 16. pyrometric cones.
The specific embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
In order to reach the purpose that improves the spray chamber efficiency of dust collection, just must destroy the air film on fine dust surface, to increase the wetability between dust and the water droplet.The method of destroying air film can be by increasing the air side steam partial pressure and realizing by physical damage.In addition, by physical method increase between the fine dust, collision agglomeration between fine dust and the water droplet, removed by spray section again after making the fine dust of formation " coal-dust stained yarn " become larger particles, also can be significantly improved the efficient of the removal fine dust of spray chamber.Hydrokinetic-type ultrasonic spray chamber of the present invention is the integrated use of ultrasonic wave reunion, the cohesion of condensing, three kinds of effects of collision detention.
A kind of embodiment of its structure as shown in Figure 1, Hydrokinetic type supersonic wave air-conditioning spray chamber, comprise the water system that water tank 8, ball-cock assembly 9, water pump on the shell 1 are formed, the air compression system that air compressor and air induce flexible pipe to form, and a plurality of nozzles 5 and the water fender 7 that is provided with on 6 arranged in shell 1 interior axial flow blower 3, water conservancy diversion grid 4, the spray that sets gradually by the air intake direction.
Maximum characteristics of the present invention are the structure of nozzle 5, as shown in Figure 3, nozzle 5 comprises the cylinder barrel of two phase suits, the cylinder barrel of two phase suits forms internal channel 13 and outer tunnel 12, internal channel 13 is as fluid passage, outer tunnel 12 is as compressed air channel, internal channel 13 and outer tunnel 12 communicate in the somewhere of barrel, the perpendicular target plate 14 that is provided with of one end of two cylinder barrels air-out and barrel, be separated with certain distance between target plate 14 and barrel port, with barrel air outlet corresponding section pyrometric cone 16 be set on the target plate 14.
Water conservancy diversion grid 4 is rotary, as shown in Figure 2, is made up of a plurality of horizontal rectangular paddle 10 that are parallel to each other, and laterally before the rectangular paddle 10 a plurality of vertical rectangular paddle 11 that are parallel to each other is set.Utilize high velocity air to drive rotation down, the water conservancy diversion grid of this structure, current-sharing is effective, and can reduce air drag.
Hydrokinetic-type ultrasonic nozzle of the present invention 5 utilizes from the inducing action of the compressed air high velocity air of internal channel 12 ejections the liquid spraying liquid the outer tunnel 13 is induced, and impinges upon the center and have to intensify on the target plate 14 of outstanding pyrometric cone 16 under high-speed case to produce high-intensity ultrasonic wave.Hydrokinetic-type ultrasonic nozzle 5 has the controllability of atomizing effect simultaneously, when compressed air enters internal channel 12 with different pressure, because the pressure difference causes the spray liquid in the outer tunnel 13 to impinge upon on the target plate 14 with different speed, because speed difference, so intensify the degree difference, and then atomizing effect is not identical unexpectedly yet.
Because the application of Hydrokinetic-type ultrasonic nozzle 5 makes Hydrokinetic type supersonic wave air-conditioning spray chamber have multi-functional purposes: when using the heat that only needs Hydrokinetic type supersonic wave air-conditioning spray chamber to realize cooling and dehumidifying to wet exchange interaction in summer, we can be by the control air compression system, make it out of service, only utilize the outer tunnel 13 of Hydrokinetic-type ultrasonic nozzle 5 that spray liquid is sprayed, only the water by certain pressure slightly sprays, and plays the wet exchange interaction of heat of cooling and dehumidifying; In using in the winter time, not only to consider the wet exchange interaction of heat of Hydrokinetic type supersonic wave air-conditioning spray chamber realization adiabatic humidiflcation, when the purification that also will consider control in this " coal-dust stained yarn " simultaneously needs in season, then utilize compression internal channel 12 and outer tunnel 13 carefully to spray simultaneously, play humidification and catharsis by opening air compression system.The present invention has saved a large amount of unnecessary water, the waste of electric resources from energy-conservation this design of angle consideration.
Operation principle of the present invention has been utilized following mode:
(1) sonic agglomeration.In the sound field, the vibration that sound wave causes can make the particle generation vibration in various degree of different in kinds such as particle diameter, density, and the small-particle and the small size macroparticle that vibrates that participate in significantly vibration can collide and coalescence mutually.In addition, under the acoustic radiation pressure effect, particle also can deposit coalescence on the sound wave antinode.But sonic agglomeration is at the processing low concentration, when containing respirable dust gas, and the time is long, energy consumption is big and efficient is not high.For overcoming this defective, at first dust-contained airflow is handled with spray water, use sonic agglomeration again.The adding of water smoke has not only increased the quantity of particle in the air-flow, and the adding of greater particle size droplet, has also reduced the best cohesion frequency of sound wave, and energy consumption is greatly saved.
(2) condensation coalescence.Fine water-spray is caught dirt mechanism and is shown, water vapor condensation will be nuclear with suspended particles, and the generation of condensation also can cause the inhomogeneous variation of catching temperature and concentration in the dirt space, and this all is that condition has been created in the sedimentation of particle.Condensation is a kind of many-sided coalescence mechanism and the comprehensive function process of depositing, and mainly comprises: steam condenses, concentration gradient, thermograde coalescence.
(3) power coalescence and sedimentation.The power coalescence is meant and relies on the external force effect, makes in the dust-containing area between various particles mutually and the process of closing.Water spray in the dust-laden space captures grit, just to the practical application of this coalescence mechanism.In this case, water droplet or dependence inertia force, or rely on gravity, extension etc. and the mutual coalescence of the powder dust particle in the dust-containing area.
The present invention utilizes above operation principle, and structure is improved, and purification efficiency is improved greatly, has reached the purpose of removing fine dust.
Claims (4)
1. Hydrokinetic type supersonic wave air-conditioning spray chamber, comprise shell (1), be disposed with axial flow blower (3) by the air intake direction in the shell (1), water conservancy diversion grid (4), spray row (6) goes up a plurality of nozzles (5) and the water fender (7) that is provided with, also comprise water system and air compression system, it is characterized in that, described nozzle (5) comprises the cylinder barrel of two phase suits, the cylinder barrel of two phase suits forms internal channel (13) and outer tunnel (12), and internal channel (13) and outer tunnel (12) communicate in the somewhere of barrel, the perpendicular target plate (14) that is provided with of one end of two cylinder barrels air-out and barrel, be separated with certain distance between target plate (14) and barrel port, described target plate (14) is gone up and barrel air outlet corresponding section is provided with pyrometric cone (16).
2. according to the described spray chamber of claim 1, it is characterized in that described shell (1) is the individual layer cylindrical shape, liner or outsourcing insulation material.
3. according to the described spray chamber of claim 1, it is characterized in that, described water conservancy diversion grid (4) is rotary, is made up of a plurality of horizontal rectangular paddle (10) that are parallel to each other, and laterally rectangular paddle (10) is preceding is provided with a plurality of vertical rectangular paddle (11) that are parallel to each other.
4. according to the described spray chamber of claim 1, it is characterized in that described water fender (7) is by being that the radial blade in axle center is formed with the rotating shaft, blade becomes certain angle of inclination each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100184861A CN100462636C (en) | 2007-08-15 | 2007-08-15 | Hydrokinetic type supersonic wave air-conditioning spray chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100184861A CN100462636C (en) | 2007-08-15 | 2007-08-15 | Hydrokinetic type supersonic wave air-conditioning spray chamber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101105318A true CN101105318A (en) | 2008-01-16 |
| CN100462636C CN100462636C (en) | 2009-02-18 |
Family
ID=38999328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100184861A Expired - Fee Related CN100462636C (en) | 2007-08-15 | 2007-08-15 | Hydrokinetic type supersonic wave air-conditioning spray chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100462636C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230651A (en) * | 2011-06-10 | 2011-11-02 | 西安工程大学 | High pressure air injection-fluid power type water spraying chamber composite evaporative cooling air-conditioning unit |
| CN103277858A (en) * | 2013-06-08 | 2013-09-04 | 西安工程大学 | Evaporative energy-saving purification air conditioning system for spinning |
| CN103418491A (en) * | 2012-05-16 | 2013-12-04 | 江苏紫光吉地达环境科技股份有限公司 | Method for improving efficiency of electric deduster for removing particulate matter 2.5 (PM2.5) dust in flue gas |
| CN104226050A (en) * | 2014-09-18 | 2014-12-24 | 福建省雾精灵环境科技有限公司 | Atomization and dust removal equipment for work bench |
| CN104279728A (en) * | 2014-10-11 | 2015-01-14 | 杭州新因环境工程有限公司 | Direct contact type hygrostat based on compressor frequency control and method thereof |
| CN104613564A (en) * | 2014-12-19 | 2015-05-13 | 北京百度网讯科技有限公司 | Air cleaner |
| CN106091212A (en) * | 2016-06-23 | 2016-11-09 | 山东大学 | New wind air cleaning system and the method for PM2.5 is removed based on flocculation core |
| CN106440164A (en) * | 2016-10-20 | 2017-02-22 | 湖南野森环保科技有限责任公司 | Energy-saving and environment-friendly indoor air humidification device |
| RU184649U1 (en) * | 2018-03-28 | 2018-11-02 | Василий Александрович Сухоставцев | Air cooling unit |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04118072A (en) * | 1990-07-30 | 1992-04-20 | Tonen Corp | Ultrasonic atomizer |
| DE4305713A1 (en) * | 1993-02-25 | 1994-09-01 | Hoechst Ag | Method and device for evenly distributing a small amount of liquid on bulk materials |
| CN100443036C (en) * | 2003-02-25 | 2008-12-17 | 松下电工株式会社 | Ultrasonic washing device |
| JP4449391B2 (en) * | 2003-09-29 | 2010-04-14 | パナソニック株式会社 | Two-fluid nozzle |
-
2007
- 2007-08-15 CN CNB2007100184861A patent/CN100462636C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230651A (en) * | 2011-06-10 | 2011-11-02 | 西安工程大学 | High pressure air injection-fluid power type water spraying chamber composite evaporative cooling air-conditioning unit |
| CN103418491A (en) * | 2012-05-16 | 2013-12-04 | 江苏紫光吉地达环境科技股份有限公司 | Method for improving efficiency of electric deduster for removing particulate matter 2.5 (PM2.5) dust in flue gas |
| CN103277858A (en) * | 2013-06-08 | 2013-09-04 | 西安工程大学 | Evaporative energy-saving purification air conditioning system for spinning |
| CN104226050A (en) * | 2014-09-18 | 2014-12-24 | 福建省雾精灵环境科技有限公司 | Atomization and dust removal equipment for work bench |
| CN104279728A (en) * | 2014-10-11 | 2015-01-14 | 杭州新因环境工程有限公司 | Direct contact type hygrostat based on compressor frequency control and method thereof |
| CN104279728B (en) * | 2014-10-11 | 2017-08-15 | 杭州新因环境工程有限公司 | The direct contact type constant-moisture device and its method controlled using compressor variable frequency |
| CN104613564A (en) * | 2014-12-19 | 2015-05-13 | 北京百度网讯科技有限公司 | Air cleaner |
| CN104613564B (en) * | 2014-12-19 | 2018-07-13 | 北京百度网讯科技有限公司 | A kind of air cleaning unit |
| CN106091212A (en) * | 2016-06-23 | 2016-11-09 | 山东大学 | New wind air cleaning system and the method for PM2.5 is removed based on flocculation core |
| CN106091212B (en) * | 2016-06-23 | 2018-12-18 | 山东大学 | The fresh air air cleaning system and method for PM2.5 are removed based on flocculation core |
| CN106440164A (en) * | 2016-10-20 | 2017-02-22 | 湖南野森环保科技有限责任公司 | Energy-saving and environment-friendly indoor air humidification device |
| RU184649U1 (en) * | 2018-03-28 | 2018-11-02 | Василий Александрович Сухоставцев | Air cooling unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100462636C (en) | 2009-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100462636C (en) | Hydrokinetic type supersonic wave air-conditioning spray chamber | |
| CN201093632Y (en) | Air conditioner water spraying room using hydrokinetic type ultrasonic atomization | |
| CN201728027U (en) | Filter cylinder type stand-alone dust collector | |
| CN105003989A (en) | Air conditioning device | |
| CN108592064A (en) | A kind of horizontal burning oil fuel gas steam boiler | |
| CN105003990A (en) | Air humidifying purifier | |
| CN204787003U (en) | Air humidifier | |
| CN104399263A (en) | Convenient-to-clean solid catalyst atomization drying system | |
| CN105498432A (en) | Dusty gas dedusting method and device | |
| CN208177025U (en) | A kind of boiler flue dust pelletizing system | |
| CN107621029A (en) | A kind of air wetting standing wave clarifier | |
| CN1480239A (en) | Filtration type gas separation and purification equipment with rapid moving filtering layer | |
| KR100621892B1 (en) | Water jet type dust collector | |
| KR20090120416A (en) | Centrifugal multi disk device for wet scrubber | |
| CN207555862U (en) | A kind of air wetting standing wave clarifier | |
| CN108635968A (en) | Wet scrubber | |
| CN202316424U (en) | Dry ice cleaning system | |
| CN104028068A (en) | A multistage deduster | |
| CN113457342B (en) | Waste gas treatment device for hot blast stove | |
| CN108057304A (en) | A kind of ultracentrifugation deduster using spray equipment | |
| CN202590549U (en) | Waste gas absorption dust collector | |
| CN204275522U (en) | A kind of solid catalyst atomization drying system being convenient to clean | |
| CN203764062U (en) | Multi-stage dust remover | |
| CN202277767U (en) | Water screen duster | |
| CN208482198U (en) | Deduster and cleaner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHAANXI GOLD WING VENTILATION TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: XI AN ENGINEERING UNIV. Effective date: 20130725 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 710048 XI AN, SHAANXI PROVINCE TO: 712099 XIANYANG, SHAANXI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130725 Address after: 712099 Shaanxi Xianyang hi tech Zone lead line Patentee after: Shaanxi Jinyi Ventilation Technology Co., Ltd. Address before: 710048 Shaanxi city of Xi'an Province Jinhua Road No. 19 Patentee before: Xi'an Engineering Univ. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090218 Termination date: 20150815 |
|
| EXPY | Termination of patent right or utility model |