CN104984970A - Inner-outer air supplementing ventilation cabinet - Google Patents
Inner-outer air supplementing ventilation cabinet Download PDFInfo
- Publication number
- CN104984970A CN104984970A CN201510301320.5A CN201510301320A CN104984970A CN 104984970 A CN104984970 A CN 104984970A CN 201510301320 A CN201510301320 A CN 201510301320A CN 104984970 A CN104984970 A CN 104984970A
- Authority
- CN
- China
- Prior art keywords
- air
- cabinet
- plenum chamber
- deflector
- wind
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
- B08B15/023—Fume cabinets or cupboards, e.g. for laboratories
Landscapes
- Ventilation (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an inner-outer air supplementing ventilation cabinet. The inner-outer air supplementing ventilation cabinet comprises a hollow cabinet, wherein a cabinet body opening is formed in one side of the cabinet body; a glass window is arranged at the upper part of the cabinet body opening; an electrically controlled exhaust valve with a variable air volume, and an electrically controlled air supplementing valve with a variable air volume are arranged at the top of the cabinet body; an electronic gate height monitoring device is arranged on one side of the electrically controlled exhaust valve with the variable air volume; an outer air supplementing static pressure chamber is arranged on the outer side and at the upper part of the cabinet body opening; an air sucking static pressure chamber is arranged on the surface of the lower part of the cabinet body opening; flow guiding plates are arranged in the cabinet body; the internal space of the cabinet body is divided into an exhaust static pressure chamber, an air supplementing static pressure chamber and a mixing chamber by the flow guiding plates; the exhaust static pressure chamber is connected with the electrically controlled exhaust valve with the variable air volume; the air supplementing static pressure chamber is connected with the electrically controlled air supplementing valve with the variable air volume; the upper part of the mixing chamber is communicated with the air supplementing static pressure chamber, and the lower part of the mixing chamber is communicated with the exhaust static pressure chamber; the exhaust static pressure chamber is connected with the air sucking static pressure chamber through a pipeline; the air supplementing static pressure chamber is connected with the outer air supplementing static pressure chamber through a pipeline. The inner-outer air supplementing ventilation cabinet disclosed by the invention is high in air supplementing efficiency, low in influence on indoor air conditioners, and low in energy consumption, investment and operating cost.
Description
Technical field
The present invention relates to vent cabinet technical field, be specifically related to a kind of mend wind efficiency high, on room conditioning impact little, energy consumption is low, cost low inside and outside air-replenishing type ventilating cabinet.
Background technology
Vent cabinet is an indispensable part in laboratory ventilation design.Do not suck or swallow poisonous, that can cause a disease into some or that toxicity is not clear chemical substance and organism in order to make laboratory worker, in laboratory, good ventilation should be had.For stoping the absorption of some steams, gas and particulate (smog, coal smoke, dust and aerosol), polluter must with the method removing of vent cabinet, ventilator cowling or local ventilation.Vent cabinet can be divided into an odd test vent cabinet, slit vent cabinet, bypass type vent cabinet, supplementary air type vent cabinet and natural ventilation type vent cabinet.
When vent cabinet is arranged at heating or has a control overflow room to humiture, be save heating, reduce air conditioning energy consumption, adopt and get the mode of supply wind after cabinet Inner eycle outside discharge chamber outdoor and be called supplementary air type vent cabinet.For the laboratory or the Clean Operating Lab that have air handling system, adopt supplementary air type vent cabinet to be very desirable, both saved energy, do not affect again indoor air current composition.
Current air-replenishing type ventilating cabinet is divided into interior air-replenishing type ventilating cabinet and outer air-replenishing type ventilating cabinet.In use all there is certain shortcoming in interior air-replenishing type ventilating cabinet and outer air-replenishing type ventilating cabinet:
Interior air-replenishing type ventilating cabinet: mend air quantity little, it is mended air quantity and is up to the 60%(of exhaust air rate once more than 60%, and toxic and harmful in vent cabinet may be excessive), all the other 40% are extracted by indoor, increase room conditioning load.
Outer air-replenishing type ventilating cabinet: the new wind in outdoor without air-conditioning process is delivered to above the operating surface of vent cabinet by it, have impact on the comfortableness of operating personnel's operation; Before vent cabinet operating surface, put the mode of discharging again after mixing owing to adopting new wind and room conditioning wind, considerably increase the load of air-conditioning.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the object of this invention is to provide a kind of mend wind efficiency high, on room conditioning impact little, energy consumption is low, operating cost low inside and outside air-replenishing type ventilating cabinet.
For solving problems of the prior art, the concrete technical scheme of employing is:
A kind of inside and outside air-replenishing type ventilating cabinet, comprise cabinet, be provided with hollow space in described cabinet, the side of described hollow space is provided with cabinet opening, and described cabinet upper opening portion is provided with vertically moving glass vision panel; Described cabinet top is provided with automatically controlled variable air rate exhaust valve and automatically controlled variable air rate mends air-valve; Described automatically controlled variable air rate is mended air-valve side and is provided with electronic gate height monitoring device, and described electronic gate height monitoring device is electrically connected with described glass vision panel; The outside of described cabinet upper opening portion is provided with outer benefit wind plenum chamber; The lower surface of described cabinet opening is provided with air draught plenum chamber; Described cabinet hollow space inside is provided with deflector, cabinet inner hollow space is divided into air draft plenum chamber, mends wind plenum chamber and blending bin by described deflector, described air draft plenum chamber is connected with described automatically controlled variable air rate exhaust valve, described benefit wind plenum chamber is mended air-valve with described automatically controlled variable air rate and is connected, described blending bin top is communicated with benefit wind plenum chamber, and described blending bin bottom is communicated with described air draft plenum chamber; Described air draft plenum chamber is connected by pipeline with air draught plenum chamber, and described benefit wind plenum chamber is connected by pipeline with described outer benefit wind plenum chamber.
Preferred scheme, described deflector comprises vertical deflector, inclination deflector, bending deflector and mends wind deflector; Described vertical deflector is located at the side relative with described cabinet opening, and described inclination deflector and bending deflector are all connected with the upper end of described vertical deflector, and described benefit wind deflector is positioned at the inner side of cabinet upper opening portion; Described vertical deflector bottom is provided with air inlet, described blending bin is connected with described air draft plenum chamber by air inlet, the top of cabinet inner hollow space is divided into air draft plenum chamber and mends wind plenum chamber by described inclination deflector, the bottom of described benefit wind plenum chamber is provided with wind-supplying mouth, and described blending bin is connected by described wind-supplying mouth with described benefit wind plenum chamber.
Preferred scheme further, check-out console is provided with in described electronic gate height monitoring device, described check-out console is mended air-valve with described automatically controlled variable air rate exhaust valve and automatically controlled variable air rate and is all electrically connected, and controls the air force of described automatically controlled variable air rate exhaust valve and automatically controlled variable air rate benefit air-valve.
By adopting such scheme, inside and outside one of the present invention, air-replenishing type ventilating cabinet compared with prior art, its technique effect is: the method that this vent cabinet adopts frame for movement to combine with Electronic Control, benefit air quantity is made to reach 90% of exhaust air rate, decrease room conditioning load, reduce energy consumption, decrease lab construction investment and operating cost.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of a kind of inside and outside air-replenishing type ventilating cabinet of the present invention.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with instantiation, the present invention is described in more detail.Should be appreciated that, these describe just exemplary, and do not really want to limit the scope of the invention.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring concept of the present invention.
As shown in Figure 1,
A kind of inside and outside air-replenishing type ventilating cabinet, comprise cabinet 1, be provided with hollow space in described cabinet 1, the side of described hollow space is provided with cabinet opening 2, and described cabinet opening 2 top is provided with vertically moving glass vision panel 3.The top of described cabinet 1 is provided with automatically controlled variable air rate exhaust valve 4 and automatically controlled variable air rate mends air-valve 5.Described automatically controlled variable air rate is mended air-valve 5 side and is provided with electronic gate height monitoring device 6, check-out console is provided with in described electronic gate height monitoring device 6, described check-out console is mended air-valve 5 with described automatically controlled variable air rate exhaust valve 4 and automatically controlled variable air rate and is all electrically connected, and controls the air force of described automatically controlled variable air rate exhaust valve 4 and automatically controlled variable air rate benefit air-valve 5.Described electronic gate height monitoring device 6 is electrically connected with described glass vision panel 3; The outside on described cabinet opening 2 top is provided with outer benefit wind plenum chamber 7; The lower surface of described cabinet opening 2 is provided with air draught plenum chamber 8; Described cabinet hollow space inside is provided with deflector 9, cabinet inner hollow space is divided into air draft plenum chamber 10, mends wind plenum chamber 11 and blending bin 12 by described deflector 9, described air draft plenum chamber 10 is connected with described automatically controlled variable air rate exhaust valve 4, described benefit wind plenum chamber 11 is mended air-valve 5 with described automatically controlled variable air rate and is connected, the top of described blending bin 12 is communicated with benefit wind plenum chamber 11, and the bottom of described blending bin 12 is communicated with described air draft plenum chamber 10; Described air draft plenum chamber 10 is connected by pipeline with air draught plenum chamber 8, and described benefit wind plenum chamber 11 is connected by pipeline with described outer benefit wind plenum chamber 7.
Described deflector 9 comprises vertical deflector 91, inclination deflector 92, bending deflector 93 and mends wind deflector 94; Described vertical deflector 91 is located at the side relative with described cabinet opening 2, and described inclination deflector 92 and bending deflector 93 are all connected with the upper end of described vertical deflector 91, and described benefit wind deflector 94 is positioned at the inner side on cabinet opening 2 top; Described vertical deflector 91 bottom is provided with air inlet 13, described blending bin 12 is connected with described air draft plenum chamber 10 by air inlet 13, the top of cabinet inner hollow space is divided into air draft plenum chamber 10 and mends wind plenum chamber 11 by described inclination deflector 92, the bottom of described benefit wind plenum chamber 11 is provided with wind-supplying mouth 14, and described blending bin 12 is connected by described wind-supplying mouth 14 with described benefit wind plenum chamber 11.
In Fig. 1, A is that slow speed vertical laminar flow mends wind; B mends wind air curtain at a high speed; C is that low speed mends wind outward.
Operation principle of the present invention is: new wind is mended air-valve 5 through automatically controlled variable air rate and sent into benefit wind plenum chamber 11, wind A and B is mended in part is formed, remainder enters the outer benefit wind C of outer benefit wind static pressure box-shaped 7 one-tenth by pipeline, vent cabinet is entered along cabinet opening 2 after C mixes with room air, enter air draft plenum chamber 10 by air draught plenum chamber 8 through piping after mixing with part B, then discharged by automatically controlled variable air rate exhaust valve 4.The height of electronic gate height monitoring device 6 Real-time Collection glass vision panel 3, the air quantity of automatically controlled variable air rate exhaust valve 4 and automatically controlled variable air rate benefit air-valve 5 is controlled after calculating, A and part B enters air draft plenum chamber 10 by the vertical deflector 91 of vent cabinet inside, then is discharged by automatically controlled variable air rate exhaust valve 4.A, B, C, between ratio by air outlet area and the position control of mending wind plenum chamber 11 and outer benefit wind plenum chamber 7.
The mode that the present invention adopts outer benefit wind and air draft real-time scale to link, rises to 90% by always mending air quantity.Be provided with vertical high speed inside vent cabinet glass vision panel and mend air curtain, interior benefit elegance vertical laminar flow mode, for 70% of total exhaust air rate, outer wind-supplying mouth is arranged on outside vent cabinet glass vision panel with regard to nearby, to reduce and room conditioning wind incorporation time, reducing the impact on air-conditioning, is 20% of total exhaust air rate; Have electronic gate height detection device, total exhaust air rate=window opening height x window opening width x3600x sets face wind speed x safety coefficient; Adopt variable air rate air-valve, reach following effect by Electronic Control:
Air draft total amount: interior benefit air quantity: mend air quantity=100:70:20 outward.
The foregoing is only preferred embodiment of the present invention, not in order to limit the scope of the invention, within the spirit and principles in the present invention all, any amendment done, equivalent to replace, be all included within protection scope of the present invention.
Claims (3)
1. an air-replenishing type ventilating cabinet inside and outside, comprises cabinet, it is characterized in that: be provided with hollow space in described cabinet, and the side of described hollow space is provided with cabinet opening, and described cabinet upper opening portion is provided with vertically moving glass vision panel; Described cabinet top is provided with automatically controlled variable air rate exhaust valve and automatically controlled variable air rate mends air-valve; Described automatically controlled variable air rate is mended air-valve side and is provided with electronic gate height monitoring device, and described electronic gate height monitoring device is electrically connected with described glass vision panel; The outside of described cabinet upper opening portion is provided with outer benefit wind plenum chamber; The lower surface of described cabinet opening is provided with air draught plenum chamber; Described cabinet hollow space inside is provided with deflector, cabinet inner hollow space is divided into air draft plenum chamber, mends wind plenum chamber and blending bin by described deflector, described air draft plenum chamber is connected with described automatically controlled variable air rate exhaust valve, described benefit wind plenum chamber is mended air-valve with described automatically controlled variable air rate and is connected, described blending bin top is communicated with benefit wind plenum chamber, and described blending bin bottom is communicated with described air draft plenum chamber; Described air draft plenum chamber is connected by pipeline with air draught plenum chamber, and described benefit wind plenum chamber is connected by pipeline with described outer benefit wind plenum chamber.
2. air-replenishing type ventilating cabinet inside and outside one according to claim 1, is characterized in that: described deflector comprises vertical deflector, inclination deflector, bending deflector and mends wind deflector; Described vertical deflector is located at the side relative with described cabinet opening, and described inclination deflector and bending deflector are all connected with the upper end of described vertical deflector, and described benefit wind deflector is positioned at the inner side of cabinet upper opening portion; Described vertical deflector bottom is provided with air inlet, described blending bin is connected with described air draft plenum chamber by air inlet, the top of cabinet inner hollow space is divided into air draft plenum chamber and mends wind plenum chamber by described inclination deflector, the bottom of described benefit wind plenum chamber is provided with wind-supplying mouth, and described blending bin is connected by described wind-supplying mouth with described benefit wind plenum chamber.
3. air-replenishing type ventilating cabinet inside and outside one according to claim 1, is characterized in that: be provided with check-out console in described electronic gate height monitoring device, described check-out console is mended air-valve with described automatically controlled variable air rate exhaust valve and automatically controlled variable air rate and is all electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510301320.5A CN104984970B (en) | 2015-06-04 | 2015-06-04 | A kind of inside and outside air-replenishing type ventilating cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510301320.5A CN104984970B (en) | 2015-06-04 | 2015-06-04 | A kind of inside and outside air-replenishing type ventilating cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104984970A true CN104984970A (en) | 2015-10-21 |
| CN104984970B CN104984970B (en) | 2019-05-17 |
Family
ID=54296932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510301320.5A Active CN104984970B (en) | 2015-06-04 | 2015-06-04 | A kind of inside and outside air-replenishing type ventilating cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104984970B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424070A (en) * | 2016-12-06 | 2017-02-22 | 深圳市美宜佳机电设备有限公司 | Back closed type air exhaust unit ventilation cabinet |
| CN106768761A (en) * | 2016-12-30 | 2017-05-31 | 株洲联诚集团有限责任公司 | A kind of track train draws the experiment wind cabinet of diagonal flow fan |
| CN108151222A (en) * | 2016-12-05 | 2018-06-12 | 王楚平 | Supplementary air type exhaust gas cabinet |
| CN109201685A (en) * | 2018-08-24 | 2019-01-15 | 苏州友裕精密科技有限公司 | A kind of vent cabinet can detecte air quantity |
| CN109248895A (en) * | 2018-07-17 | 2019-01-22 | 雷柏特（南通）实验室系统工程有限公司 | Vent cabinet under a kind of laboratory air-curtain type exhausting |
| CN111185455A (en) * | 2020-01-14 | 2020-05-22 | 江苏科仕达实验室环保科技有限公司 | Energy-saving type air supplementing ventilation cabinet |
| CN111618062A (en) * | 2020-05-20 | 2020-09-04 | 西安长庆科技工程有限责任公司 | Fume hood with simple tail gas treatment facility and tail gas treatment method |
| CN112473753A (en) * | 2020-11-16 | 2021-03-12 | 青岛海尔生物医疗股份有限公司 | Biological safety cabinet |
| CN113751453A (en) * | 2021-08-25 | 2021-12-07 | 苏州特福佳实验室系统工程有限公司 | High-precision leveling fume hood for laboratory |
| CN115889384A (en) * | 2023-02-20 | 2023-04-04 | 倚世节能科技（上海）有限公司 | Fume hood, ventilating method and computer readable storage medium |
| CN117046856A (en) * | 2023-10-12 | 2023-11-14 | 倚世节能科技（上海）有限公司 | Air quantity control method, exhaust cabinet and computer storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1545989A (en) * | 1967-11-14 | 1968-11-15 | Laboratory fume cupboard with compensated ventilation and gas washing incorporated | |
| GB1139972A (en) * | 1966-01-18 | 1969-01-15 | Baird & Tatlock Ltd | Improvements relating to fume extraction apparatus |
| GB2064100A (en) * | 1979-11-28 | 1981-06-10 | Jennings H G F | Fume cupboards |
| CN203018418U (en) * | 2012-12-06 | 2013-06-26 | 南京诺丹工程技术有限公司 | Air supplement type fume hood |
| CN203791316U (en) * | 2014-04-14 | 2014-08-27 | 北京成威博瑞实验室设备有限公司 | Self-adapting variable air volume ventilation cabinet |
| CN204996803U (en) * | 2015-06-04 | 2016-01-27 | 上海锐石工程技术有限公司 | Inside and outside benefit wind type fume chamber |
-
2015
- 2015-06-04 CN CN201510301320.5A patent/CN104984970B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1139972A (en) * | 1966-01-18 | 1969-01-15 | Baird & Tatlock Ltd | Improvements relating to fume extraction apparatus |
| FR1545989A (en) * | 1967-11-14 | 1968-11-15 | Laboratory fume cupboard with compensated ventilation and gas washing incorporated | |
| GB2064100A (en) * | 1979-11-28 | 1981-06-10 | Jennings H G F | Fume cupboards |
| CN203018418U (en) * | 2012-12-06 | 2013-06-26 | 南京诺丹工程技术有限公司 | Air supplement type fume hood |
| CN203791316U (en) * | 2014-04-14 | 2014-08-27 | 北京成威博瑞实验室设备有限公司 | Self-adapting variable air volume ventilation cabinet |
| CN204996803U (en) * | 2015-06-04 | 2016-01-27 | 上海锐石工程技术有限公司 | Inside and outside benefit wind type fume chamber |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108151222A (en) * | 2016-12-05 | 2018-06-12 | 王楚平 | Supplementary air type exhaust gas cabinet |
| CN106424070A (en) * | 2016-12-06 | 2017-02-22 | 深圳市美宜佳机电设备有限公司 | Back closed type air exhaust unit ventilation cabinet |
| CN106768761B (en) * | 2016-12-30 | 2023-07-04 | 湖南联诚轨道装备有限公司 | Experiment wind cabinet of rail train traction diagonal flow fan |
| CN106768761A (en) * | 2016-12-30 | 2017-05-31 | 株洲联诚集团有限责任公司 | A kind of track train draws the experiment wind cabinet of diagonal flow fan |
| CN109248895A (en) * | 2018-07-17 | 2019-01-22 | 雷柏特（南通）实验室系统工程有限公司 | Vent cabinet under a kind of laboratory air-curtain type exhausting |
| CN109201685A (en) * | 2018-08-24 | 2019-01-15 | 苏州友裕精密科技有限公司 | A kind of vent cabinet can detecte air quantity |
| CN111185455A (en) * | 2020-01-14 | 2020-05-22 | 江苏科仕达实验室环保科技有限公司 | Energy-saving type air supplementing ventilation cabinet |
| CN111618062A (en) * | 2020-05-20 | 2020-09-04 | 西安长庆科技工程有限责任公司 | Fume hood with simple tail gas treatment facility and tail gas treatment method |
| CN112473753A (en) * | 2020-11-16 | 2021-03-12 | 青岛海尔生物医疗股份有限公司 | Biological safety cabinet |
| CN113751453A (en) * | 2021-08-25 | 2021-12-07 | 苏州特福佳实验室系统工程有限公司 | High-precision leveling fume hood for laboratory |
| CN115889384A (en) * | 2023-02-20 | 2023-04-04 | 倚世节能科技（上海）有限公司 | Fume hood, ventilating method and computer readable storage medium |
| CN115889384B (en) * | 2023-02-20 | 2023-09-29 | 倚世节能科技（上海）有限公司 | Fume hood, ventilation method and computer readable storage medium |
| WO2024174362A1 (en) * | 2023-02-20 | 2024-08-29 | 倚世节能科技（上海）有限公司 | Fume hood, ventilation method and computer-readable storage medium |
| CN117046856A (en) * | 2023-10-12 | 2023-11-14 | 倚世节能科技（上海）有限公司 | Air quantity control method, exhaust cabinet and computer storage medium |
| CN117046856B (en) * | 2023-10-12 | 2024-01-23 | 倚世节能科技（上海）有限公司 | Air quantity control method, exhaust cabinet and computer storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104984970B (en) | 2019-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104984970A (en) | Inner-outer air supplementing ventilation cabinet | |
| CN203083022U (en) | Split-type energy-saving air conditioner | |
| CN204996803U (en) | Inside and outside benefit wind type fume chamber | |
| CN205732220U (en) | A kind of ventilated chamber | |
| CN103206746A (en) | Split type energy-saving air conditioner | |
| CN204787019U (en) | Ventilator | |
| CN208815638U (en) | A kind of deodorization ventilating system | |
| CN204503733U (en) | Supplementary air type vent cabinet | |
| CN204100476U (en) | The new wind air cleaning system of bidirectional flow indoor and outdoor Two-way Cycle | |
| CN208998266U (en) | The multifunction combined new wind devices in classroom | |
| CN208238170U (en) | Insect and rat prevention device and air conditioner indoor unit with same | |
| KR102068698B1 (en) | a adjusting device of indoor pressure of building | |
| CN108426340A (en) | A kind of laboratory ventilation system | |
| CN106352421A (en) | Novel wind device | |
| CN205965331U (en) | VOC preparation room filters wind channel structure | |
| CN107228449A (en) | New blower fan with indoor wind self-purification function | |
| CN204984471U (en) | Tunnel ventilation structure for highway | |
| CN209588241U (en) | A kind of positive pressure dust cleaning system of dust proof workshop | |
| CN101131395B (en) | Biological safety experiment cabinet | |
| CN207214359U (en) | A kind of wall-mounted fresh air purifying all-in-one | |
| CN207103377U (en) | A kind of special ventilation equipment in environment protection emission formula laboratory | |
| CN206989406U (en) | New blower fan with indoor wind self-purification function | |
| CN207929744U (en) | Energy-saving interior benefit wind ventilation device | |
| CN206771638U (en) | Indoor fresh air cleaning system based on liquid circulated recuperation of heat | |
| CN206660338U (en) | The indoor Emergency Ladder cover plate of air-cleaning function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230330 Address after: Room 1019, Block B, Building 6, No. 768 Chenxiang Road, Jiading District, Shanghai, 201800 Patentee after: Shanghai Fuyu laboratory equipment Co.,Ltd. Address before: 200124, Room 307, Building 2, No. 338 Sanlin Road, Pudong New Area, Shanghai Patentee before: SHANGHAI REIC ENGINEERING TECHNOLOGY Co.,Ltd. |