CN204063373U - Multi-stage heat reclaims Fresh air handing device - Google Patents
Multi-stage heat reclaims Fresh air handing device Download PDFInfo
- Publication number
- CN204063373U CN204063373U CN201420471734.3U CN201420471734U CN204063373U CN 204063373 U CN204063373 U CN 204063373U CN 201420471734 U CN201420471734 U CN 201420471734U CN 204063373 U CN204063373 U CN 204063373U
- Authority
- CN
- China
- Prior art keywords
- chamber
- new wind
- air
- return air
- recovery device
- 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.)
- Active
Links
Classifications
-
- 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]
- Y02B30/56—Heat recovery units
Abstract
The utility model relates to a kind of Multi-stage heat and reclaims Fresh air handing device, it comprises: pressure fan, return fan, elementary plate-type heat recovery device and secondary plate-type heat recovery device, pressure fan is located in new wind passage, return fan is located in return air channel, elementary plate-type heat recovery device is located at the first order intersection of new wind passage and return air channel, and secondary plate-type heat recovery device is located at the second level intersection of new wind passage and return air channel; Utilize multistage plate-type heat recovery device, make new wind and return air carry out directly heat exchange fully, carry high-octane recovery utilization rate, reduce the live load of compressor, energy-saving and emission-reduction simultaneously.
Description
Technical field
The utility model relates to a kind of Multi-stage heat and reclaims Fresh air handing device, is used in particular for the Fresh air handing of central air conditioner system.
Background technology
If the return air of central air-conditioning wind system, directly discharged to air, does not reclaim air return energy, causes the significant wastage of the energy; In order to better save energy and reduce the cost, the secondary realizing energy utilizes, and needs a kind of central air-conditioning air return energy retracting device; The heat reclamation device of existing central air-conditioning mostly adopts total-heat exchanger to realize heat transfer process, and heat exchange efficiency is relatively low, and the return air after heat exchange still contains a large amount of energy, and traditional new blower for heat recycling is unfavorable for the efficiency utilization of thermal source.
Current family expenses fresh air processor, substantially be exactly after total-heat exchanger, directly send into indoor after being filtered by new wind, certain cooling or hyperthermic treatment are not carried out to new wind, as certain air conditioner refrigerating or heating effect need be reached, air-conditioning or heating equipment must be opened in addition.But the long duration in 1 year all processes transition season, at this time, if do not turned on the aircondition, indoor there will be obvious discomfort, at this moment must open air-conditioning or heating equipment in addition, cause the unnecessary consumption of energy consumption.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of Multi-stage heat and reclaims Fresh air handing device, makes new wind and return air carry out repeatedly directly heat exchange, carries high-octane recovery utilization rate.
In order to solve the problems of the technologies described above, the utility model provides a kind of Multi-stage heat to reclaim Fresh air handing device, it comprises: pressure fan, return fan, elementary plate-type heat recovery device and secondary plate-type heat recovery device, pressure fan is located in new wind passage, return fan is located in return air channel, elementary plate-type heat recovery device is located at the first order intersection of new wind passage and return air channel, and secondary plate-type heat recovery device is located at the second level intersection of new wind passage and return air channel.
The multiple ventilation inner chambers become by baffle for separating, described new wind passage comprises upper left chamber, lumen and upper right chamber, and described return air channel comprises chamber, lower-left, middle epicoele and chamber, bottom right; The downside of upper left chamber is located in chamber, lower-left, and middle epicoele is located at the right side of upper left chamber, and lumen is located at the downside of middle epicoele, and elementary plate-type heat recovery device is located at first order intersection adjacent between upper left chamber, chamber, lower-left, middle epicoele and lumen; The right side of middle epicoele is located in upper right chamber, and the downside in upper right chamber is located in chamber, bottom right, and secondary plate-type heat recovery device is located at second level intersection adjacent between middle epicoele, lumen, upper right chamber and chamber, bottom right; New wind entrance is located at the left end of upper left chamber, and the left end in chamber, lower-left is located in return air outlet, and the right-hand member in upper right chamber is located in new wind outlet, and return air inlet is located at the right-hand member in chamber, bottom right.
Multi-stage heat reclaims Fresh air handing device and also comprises compressor, and the air-out condenser being located at return air channel exit is connected with compressor operating and is suitable for carrying out recuperation of heat to return air.
Desuperheating coil is provided with in lumen, the right side of this desuperheating coil is adjacent is provided with cold evaporimeter again, the right side of this cold evaporimeter is again adjacent is provided with new air-cooled condenser, the right side of this new air-cooled condenser is adjacent is provided with wet-membrane humidifier, the downside of lumen is provided with middle cavity of resorption, be provided with presetting evaporimeter in middle cavity of resorption, this presetting evaporimeter is suitable for desuperheating coil by heat exchanger and provides cold water or hot water; Also with colder evaporimeter, new air-cooled condenser, presetting evaporimeter carry out work and are connected the compressor of frequency conversion.
New wind outlet is outer is provided with the air devider new wind being dispensed to each room, each branch road of air devider rear end is equipped with the Electric air valve for Boiler pressure control or blower fan.
Relative to prior art, the technique effect that the utility model has is:
(1) described Multi-stage heat reclaims Fresh air handing device, utilizes multistage plate-type heat recovery device, makes new wind and return air carry out directly heat exchange fully, carries high-octane recovery utilization rate, reduce the live load of compressor, energy-saving and emission-reduction simultaneously.
(2) new wind passage and the mutual arranged crosswise of return air channel, add air flow resistance, reduce air velocity, making return air and new wind carry out heat exchange fully when flowing through plate-type heat recovery device, making newly distinguished and admirablely when desuperheating coil, colder evaporimeter and new air-cooled condenser, to carry out heat exchange more fully.
(3) air-out condenser is located at return air channel exit and is suitable for carrying out recuperation of heat again to return air.
(4) in summer, presetting evaporimeter provides cold water (16-20 degree) for desuperheating coil, can carry out precooling to new wind; Cold evaporimeter is that refrigerant directly evaporates again, dehumidifies and cool new wind, and new air-cooled condenser can make new wind reheating be warming up to temperature required, and wet-membrane humidifier can carry out humidity regulation to the new wind dehumidified; In the winter time, colder evaporimeter and new air-cooled condenser do not work, and presetting evaporimeter provides hot water (35-40 degree) for desuperheating coil, can heat up to new wind, and wet-membrane humidifier carries out humidification to required humidity to the new wind that winter is drier; Variable ratio frequency changer compressor carries out work with each condenser, evaporimeter and is connected, and according to the working strength of the leaving air temp timely adjustment compressor of new wind, save the energy, heat exchanger can provide hot and cold water for presetting evaporimeter.
(5) air devider and electronic point of air-valve or blower fan can by new wind distributions according to need to each room.
Accompanying drawing explanation
In order to clearly demonstrate innovative principle of the present utility model and the technical advantage compared to existing product thereof, by the limiting examples applying described principle, possible embodiment is described by means of accompanying drawing below.In the drawings:
Fig. 1 is the structure principle chart that Multi-stage heat of the present utility model reclaims Fresh air handing device;
Fig. 2 is the left view that Multi-stage heat of the present utility model reclaims Fresh air handing device;
Fig. 3 is the right view that Multi-stage heat of the present utility model reclaims Fresh air handing device.
Detailed description of the invention
As shown in Figure 1, Figure 2, Figure 3 shows, described Multi-stage heat reclaims Fresh air handing device and comprises: new wind screen pack 1, elementary plate-type heat recovery device 2, secondary plate-type heat recovery device 3, pressure fan 4, return air screen pack 5, air-out condenser 6, compressor 7, desuperheating coil 8, cold evaporimeter 9 again, new air-cooled condenser 10, wet-membrane humidifier 11, return fan 12, upper left chamber 13, chamber, lower-left 14, middle epicoele 15, lumen 16, upper right chamber 17, chamber, bottom right 18, middle cavity of resorption 19, new wind entrance 20, return air outlet 21, new wind outlet 22, return air inlet 23.
Plate-type heat recovery device comprises: elementary plate-type heat recovery device 2 and secondary plate-type heat recovery device 3, described plate-type heat recovery device can adopt and assemble shaping adverse current or the flat air heat exchanger of cross-current, Chinese patent literature number for the plate-type heat recovery heat exchanger in CN201081580Y or Chinese patent literature number as Chinese patent literature number for the injection moulding in CN1317539C is the plate type heat exchanger in CN1022798903A, or adopts if Chinese patent literature number is plate type heat exchanger in CN102138053B.
It is the frame structure of hollow that described Multi-stage heat reclaims Fresh air handing device, its left surface top is provided with new wind entrance 20, its left surface bottom is provided with return air outlet 21, its right flank top is provided with new wind outlet 22, return air inlet 23 is provided with in the middle part of its right flank, described Multi-stage heat reclaims the inner chamber of Fresh air handing device by the elementary plate-type heat recovery device 2 of cube, secondary plate-type heat recovery device 3 and multiple baffle for separating become multiple inner chamber that independently ventilates, described ventilation inner chamber comprises: upper left chamber 13, chamber, lower-left 14, middle epicoele 15, lumen 16, upper right chamber 17, chamber, bottom right 18, middle cavity of resorption 19, wherein new wind entrance 20 is connected with upper left chamber 13, new wind screen pack 1 is vertical in upper left chamber 13, adjacently immediately below upper left chamber 13 be provided with chamber, lower-left 14, air-out condenser 6 is vertical in chamber, lower-left 14, the right side of upper left chamber 13 is adjacent is provided with middle epicoele 15, adjacently immediately below middle epicoele 15 be provided with lumen 16, elementary plate-type heat recovery device 2 is located at upper left chamber 13, chamber, lower-left 14, above-mentioned four ventilation inner chambers are also isolated by the first order intersection that middle epicoele 15 and lumen 16 have a common boundary, desuperheating coil 8 is vertically provided with in lumen 16, cold evaporimeter 9 is adjacent to the right side of desuperheating coil 8 mutually again, new air-cooled condenser 10 is adjacent to the right side of cold evaporimeter 9 mutually again, wet-membrane humidifier 11 is adjacent to the right side of new air-cooled condenser 10 mutually, adjacently immediately below lumen 16 be provided with middle cavity of resorption 19, for refrigeration, the frequency-changeable compressor 7 heated is located in middle cavity of resorption 19, the right side of middle epicoele 15 is adjacent is provided with upper right chamber 17, pressure fan 4 is located in upper right chamber 17, adjacently immediately below upper right chamber 17 be provided with chamber, bottom right 18, return air screen pack 5 is located in chamber, bottom right 18, presetting evaporimeter (not shown) is located in middle cavity of resorption 19, compressor 7 is suitable for and cold evaporimeter 9 again, new air-cooled condenser 10, air-out condenser 6, presetting evaporimeter carries out work connection, the heat exchanger (not shown) of presetting evaporimeter and its side carries out heat exchange and is suitable for desuperheating coil 8 providing cold water or hot water, be provided with the air devider new wind being dispensed to each room outside new wind outlet 22, each branch road of air devider rear end be equipped with the Electric air valve for Boiler pressure control or blower fan.
Described heat exchanger can adopt as Chinese patent literature number be the heat exchanger in CN201621904U, Chinese patent literature number for the heat exchanger in CN102865756B or Chinese patent literature number be the heat exchanger in CN102288053B.
Described Multi-stage heat reclaims Fresh air handing device, and its course of work comprises:
(1) summer mode: compressor 7 works, new wind enters upper left chamber 13 by new wind entrance 20, after new wind screen pack 1 filters, pass elementary plate-type heat recovery device 2 and carry out heat exchange with return air thus reduce the temperature of new wind, new wind enters lumen 16, presetting evaporator operation also produces by heat exchanger the cold water that temperature is 16-20 degree Celsius, cold water is sent in desuperheating coil 8, described new wind carries out heat exchange through desuperheating coil 8 thus again reduces the temperature of new wind, new wind passes cold evaporimeter 9 again to carry out lowering the temperature and dehumidifying, new wind carries out heat exchange through during new air-cooled condenser 10 thus new wind is heated up, new wind passes wet-membrane humidifier 11 thus makes the humidity that new wind reaches required, new wind passes secondary board-like retracting device 3 and carries out heat exchange again with return air thus new wind heated up and reaches required temperature, new wind enters in upper right chamber 17, new wind is delivered to new wind outlet 22 and to be distributed by new wind by air devider and send into each room by pressure fan 4, return air from each room enters chamber, bottom right 18 through return air inlet 23, return air is through to be sent in secondary plate-type heat recovery device 3 by return fan 12 after described return air screen pack 5 and carry out heat exchange with new wind, return air through secondary plate-type heat recovery device 3 enters middle epicoele 15, return air passes elementary plate-type heat recovery device 2 and again carries out heat exchange with new wind, return air enters chamber, lower-left 14 and passes air-out condenser 6 thus carry out recuperation of heat to return air, and last return air enters the external world through return air outlet 21.
(2) winter mode compressor 7 works, new wind enters upper left chamber 13 by new wind entrance 20, after new wind screen pack 1 filters, pass elementary plate-type heat recovery device 2 and carry out heat exchange with return air thus raise the temperature of new wind, new wind enters lumen 16, presetting evaporator operation also produces by heat exchanger the hot water that temperature is 35-40 degree Celsius, hot water is sent in desuperheating coil 8, described new wind carries out heat exchange through desuperheating coil 8 thus again raises the temperature of new wind, new wind is through after out-of-work cold evaporimeter 9 again and new air-cooled condenser 10, new wind passes wet-membrane humidifier 11 thus makes dry new wind reach required humidity, new wind passes secondary board-like retracting device 3 and carries out heat exchange again with return air thus new wind heated up and reaches required temperature, new wind enters in upper right chamber 17, it is outer and to be distributed by new wind by air devider and send into each room to new wind outlet 22 that new wind is carried out air-supply by pressure fan 4, return air from each room enters chamber, bottom right 18 through return air inlet 23, return air is through to be sent in secondary plate-type heat recovery device 3 by return fan 12 after described return air screen pack 5 and carry out heat exchange with new wind, return air through secondary plate-type heat recovery device 3 enters middle epicoele 15, return air passes elementary plate-type heat recovery device 2 and again carries out heat exchange with new wind, return air enters chamber, lower-left 14 and passes air-out condenser 6 thus carry out recuperation of heat to return air, and last return air enters the external world through return air outlet 21.
(3) transition season pattern: transition season generally comprises and is in spring between the summer in winter or autumn, temperature and air humidity are often at random in change procedure, now need new elegance control mode more neatly, namely new wind directly sends into indoor after new wind screen pack 1 filters and indoor return air carries out heat exchange, simultaneously CO in automatic sensing chamber
2concentration, regulates required resh air requirement; When monitoring indoor return air temperature and being greater than 26 degree and when being less than 30 degree, and relative humidity is when being no more than 60%, compressor start, presetting evaporimeter and air-out condenser 6 are started working, and the cold water that presetting evaporimeter produces is sent into desuperheating coil (8) and carried out precooling to new wind; When monitoring indoor return air temperature and be less than 26 degree and being greater than 15 degree, but relative humidity more than 75% time, compressor start, colder evaporimeter 9 and new air-cooled condenser 10 are started working, and dehumidify to new wind, it is indoor to send into after reheating; When monitoring indoor return air temperature and be less than 15 degree and being greater than 10 degree, compressor starts automatically, and presetting evaporimeter and air-out condenser 6 start, and the hot water that presetting evaporimeter produces is sent into desuperheating coil (8) and heated up to new wind.
Energy saver mode, dehumidification mode, normal mode three kinds of states can be divided in described summer mode; Energy saver mode realize indoor nobody time air circulating system is closed, temperature on duty controls; Dehumidification mode realizes exceeding limit value when indoor humidity, and air circulating system is pressed Inner eycle dehumidification mode and run; Normal mode realizes the humiture that system sets by indoor thermostat and normally runs.
When described winter mode is run, this device with minimum fresh air requirmente mode operation, CO in automatic sensing chamber
2concentration, regulates required resh air requirement.
Obviously, above-described embodiment is only for the utility model example is clearly described, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And these belong to spirit institute's apparent change of extending out of the present utility model or change and are still among protection domain of the present utility model.
Claims (5)
1. a Multi-stage heat reclaims Fresh air handing device, comprise pressure fan (4), return fan (12), elementary plate-type heat recovery device (2) and secondary plate-type heat recovery device (3), it is characterized in that: pressure fan (4) is located in new wind passage, return fan (12) is located in return air channel, elementary plate-type heat recovery device (2) is located at the first order intersection of new wind passage and return air channel, and secondary plate-type heat recovery device (3) is located at the second level intersection of new wind passage and return air channel.
2. Multi-stage heat according to claim 1 reclaims Fresh air handing device, it is characterized in that comprising: the multiple ventilation inner chambers become by baffle for separating, described new wind passage comprises upper left chamber (13), lumen (16) and upper right chamber (17), and described return air channel comprises chamber, lower-left (14), middle epicoele (15) and chamber, bottom right (18); The downside of upper left chamber (13) is located in chamber, lower-left (14), middle epicoele (15) is located at the right side of upper left chamber (13), lumen (16) is located at the downside of middle epicoele (15), and elementary plate-type heat recovery device (2) is located at first order intersection adjacent between upper left chamber (13), chamber, lower-left (14), middle epicoele (15) and lumen (16); The right side of middle epicoele (15) is located in upper right chamber (17), the downside of upper right chamber (17) is located in chamber, bottom right (18), and secondary plate-type heat recovery device (3) is located at second level intersection adjacent between middle epicoele (15), lumen (16), upper right chamber (17) and chamber, bottom right (18); New wind entrance (20) is located at the left end of upper left chamber (13), and return air outlet (21) is located at the left end of chamber, lower-left (14), and new wind outlet (22) is located at the right-hand member of upper right chamber (17), and return air inlet (23) is located at the right-hand member of chamber, bottom right (18).
3. Multi-stage heat according to claim 2 reclaims Fresh air handing device, and characterized by further comprising: compressor (7), the air-out condenser (6) being located at return air channel exit works with compressor (7) and is connected and is suitable for carrying out recuperation of heat to return air.
4. Multi-stage heat according to claim 3 reclaims Fresh air handing device, it is characterized in that: in lumen (16), be provided with desuperheating coil (8), the right side of this desuperheating coil (8) is adjacent is provided with cold evaporimeter (9) again, the right side of this cold evaporimeter (9) is again adjacent is provided with new air-cooled condenser (10), the right side of this new air-cooled condenser (10) is adjacent is provided with wet-membrane humidifier (11), the downside of lumen (16) is provided with middle cavity of resorption (19), middle cavity of resorption is provided with presetting evaporimeter in (19), this presetting evaporimeter is suitable for desuperheating coil (8) by heat exchanger and provides cold water or hot water, also with colder evaporimeter (9), new air-cooled condenser (10), presetting evaporimeter carry out work and are connected the compressor (7) of frequency conversion.
5. Multi-stage heat according to claim 4 reclaims Fresh air handing device, it is characterized in that: be provided with the air devider new wind being dispensed to each room outside new wind outlet (22), each branch road of air devider rear end be equipped with the Electric air valve for Boiler pressure control or blower fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420471734.3U CN204063373U (en) | 2014-08-20 | 2014-08-20 | Multi-stage heat reclaims Fresh air handing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420471734.3U CN204063373U (en) | 2014-08-20 | 2014-08-20 | Multi-stage heat reclaims Fresh air handing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204063373U true CN204063373U (en) | 2014-12-31 |
Family
ID=52204870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420471734.3U Active CN204063373U (en) | 2014-08-20 | 2014-08-20 | Multi-stage heat reclaims Fresh air handing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204063373U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444311A (en) * | 2015-12-30 | 2016-03-30 | 丛旭日 | Saline water double-cold-source air refresher unit |
| CN105444310A (en) * | 2015-12-30 | 2016-03-30 | 丛旭日 | Double-plate and double-cold-source intelligent air refresher unit |
| CN107339763A (en) * | 2017-06-27 | 2017-11-10 | 苏州诚品家智能科技有限公司 | Fresh air ventilator |
-
2014
- 2014-08-20 CN CN201420471734.3U patent/CN204063373U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444311A (en) * | 2015-12-30 | 2016-03-30 | 丛旭日 | Saline water double-cold-source air refresher unit |
| CN105444310A (en) * | 2015-12-30 | 2016-03-30 | 丛旭日 | Double-plate and double-cold-source intelligent air refresher unit |
| CN105444310B (en) * | 2015-12-30 | 2019-07-26 | 丛旭日 | A kind of double cold source intelligent fresh air units of double plates |
| CN107339763A (en) * | 2017-06-27 | 2017-11-10 | 苏州诚品家智能科技有限公司 | Fresh air ventilator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104976704B (en) | The method of work of secondary recuperation of heat Fresh air handing device | |
| CN105444310B (en) | A kind of double cold source intelligent fresh air units of double plates | |
| CN105352073A (en) | Operating method for multi-level heat recovery fresh air treatment device | |
| CN203980480U (en) | Energy-saving and purifying type fresh-air ventilation air conditioner integrated machine | |
| CN107255411B (en) | Multifunctional heat pump drying device | |
| CN203824009U (en) | Fresh air ventilator capable of recycling condensation heat | |
| CN105953469A (en) | Heat pump type exhaust air heat recovery fresh air conditioning unit applicable to severe cold areas | |
| CN102620477B (en) | Double-cold-source full fresh air heat pump dehumidification unit | |
| CN104033986B (en) | Total heat recovery type is collapsible to be sent, return, the control method of air draft integrated air conditioner unit | |
| CN205536673U (en) | Dry heat pump system of constant temperature | |
| CN204345961U (en) | Independent temperature-humidity control refrigeration system | |
| CN204063373U (en) | Multi-stage heat reclaims Fresh air handing device | |
| CN108224628A (en) | With reference to heat pump driven standpipe indirect evaporating-cooling and the air-conditioner set of solution dehumidification | |
| CN204063468U (en) | Multi-stage heat with water circulation reclaims Fresh air handing device | |
| CN109945329A (en) | Low temperature isolator air-conditioning system for the production of medicine enterprise | |
| CN104976706B (en) | Fresh air handing device with secondary recuperation of heat | |
| CN206944379U (en) | Energy-optimised application multifunctional heat pump fresh air damping machine | |
| CN105115033A (en) | Energy-saving air-return-type air conditioner and control method thereof | |
| CN102829519B (en) | Dehumidifying unit of double cold source all fresh air heat pump provided with cold carrying heat exchanger | |
| CN104457047B (en) | Operation of air conditioning systems | |
| CN208475494U (en) | A kind of fresh air dehumidifier | |
| CN206944519U (en) | A kind of multi-stage variable coolant system | |
| CN202835624U (en) | Double-cold-source full-fresh-air heat pump dehumidification machine set with cold-source-carrying heat exchanger | |
| CN211476147U (en) | Swimming pool dehumidifier with condensation heat recovery | |
| CN203810600U (en) | Fresh air processing device for secondary heat recovery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 200000 Shanghai Putuo District City Light Road No. 1219 room 1004 Patentee after: SHANGHAI NFE ECOLOGY TECHNOLOGY CO., LTD. Address before: 200000 Shanghai Putuo District City Light Road No. 1219 room 1004 Patentee before: Shanghai NFE Construction-Tech Development Co., Ltd. |