CN112594831A - Split type heat pipe heat recovery fresh air unit - Google Patents
Split type heat pipe heat recovery fresh air unit Download PDFInfo
- Publication number
- CN112594831A CN112594831A CN202011599965.9A CN202011599965A CN112594831A CN 112594831 A CN112594831 A CN 112594831A CN 202011599965 A CN202011599965 A CN 202011599965A CN 112594831 A CN112594831 A CN 112594831A
- Authority
- CN
- China
- Prior art keywords
- heat pipe
- heat recovery
- fresh air
- exhaust
- heat
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—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
- F24F7/08—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 with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/002—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/002—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid
- F24F2012/005—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid using heat pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
- F24F2013/205—Mounting a ventilator fan therein
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/56—Heat recovery units
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Central Air Conditioning (AREA)
Abstract
A split type heat pipe heat recovery fresh air unit comprises a ventilation system and a heat recovery circulation system which are matched with each other, wherein the ventilation system comprises a heat pipe heat recovery fresh air unit and a heat pipe heat recovery exhaust fan unit; the heat pipe heat recovery fresh air unit comprises a fresh air filtering section, a fresh air heat pipe heat recovery section and an air supply section which are matched with each other; the heat pipe heat recovery exhaust unit comprises an exhaust filtering section, an exhaust heat pipe heat recovery section and an exhaust section which are matched with each other; the fresh air heat pipe heat recovery section and the exhaust air heat pipe heat recovery section form a circulation passage through the connecting pipe, and the circulation passage is provided with the circulating pump, so that the heat exchanger is better in flexibility and suitable for perfect switching of heat exchange in different seasons.
Description
The technical field is as follows:
the invention belongs to the field of fresh air conditioners, and relates to a split type heat pipe heat recovery fresh air handling unit.
Background art:
the heat pipe is a heat transfer element with extremely high heat conductivity, and transfers heat through evaporation and condensation of liquid in the totally enclosed vacuum pipe. The heat quantity and speed transferred by the heat pipe are hundreds of times larger than those of metals such as silver, copper and the like, and the heat pipe is widely applied to the fields of nuclear industry, aerospace, electronics and the like.
Fig. 5 and 6 show an existing integrated heat pipe heat recovery unit.
Ventilation system as shown in fig. 5, principle: a brand new wind heat recovery mode: when an indoor environment detector detects that the indoor environment quality (PM2.5, VOC, CO2 and the like) is poor, the integral heat pipe heat recovery fresh air unit is automatically started, a fresh air valve (electric) is opened, a return air valve (electric) is opened, an air supply fan is started, an air exhaust fan is started, outdoor fresh air and indoor return air simultaneously pass through a fresh air inlet and a return air inlet respectively, are filtered by a high-efficiency filter screen and a primary filter screen respectively and then pass through a fresh air heat pipe and an air exhaust heat pipe respectively, a refrigerant medium is continuously evaporated and condensed in the heat pipes under the action of a capillary core and the gravity of the refrigerant medium, so that heat exchange is carried out on the introduced outdoor fresh air and the exhausted indoor return air, the outdoor fresh air is sent to the indoor through an air feeder, and the indoor return air is exhausted; when the indoor environment detector detects that the indoor environment quality (PM2.5, VOC, CO2 and the like) reaches a certain range value of a set value, the wind speed of the fan can be automatically adjusted, and energy consumption is reduced.
The heat recovery circulation system is as shown in figure 6, and the principle is as follows: the low-temperature liquid refrigerant flows out of the side heat pipe of the exhaust pipe, enters the fresh air heat pipe to evaporate and absorb heat, is changed into a medium-temperature gas-liquid mixture, enters the exhaust heat pipe to condense and dissipate heat, is changed into the low-temperature liquid refrigerant, and is continuously circulated under the action of the capillary core and gravity through the conversion between gas and liquid phases, so that the effect of heat transfer is achieved. Outdoor hot air is cooled and sent into the room through the fresh air heat pipe, and indoor cold air is heated and heated through the exhaust air heat pipe and discharged out of the room, so that the energy-saving effect is achieved.
The integral heat pipe heat recovery unit can only be integrally installed, is poor in flexibility and only suitable for summer, but the direction of the heat pipe cannot be automatically switched when the heat pipe heat recovery unit is used in winter, so that the heat pipe heat recovery unit does not have the heat exchange effect in winter.
The invention content is as follows:
aiming at the defects in the prior art, the invention provides the split type heat pipe heat recovery fresh air handling unit which is better in flexibility and suitable for perfect heat exchange switching in different seasons.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a split type heat pipe heat recovery fresh air unit comprises a ventilation system and a heat recovery circulation system which are matched with each other, wherein the ventilation system comprises a heat pipe heat recovery fresh air unit and a heat pipe heat recovery exhaust fan unit; the heat pipe heat recovery fresh air unit comprises a fresh air filtering section, a fresh air heat pipe heat recovery section and an air supply section which are matched with each other; the heat pipe heat recovery exhaust unit comprises an exhaust filtering section, an exhaust heat pipe heat recovery section and an exhaust section which are matched with each other; the fresh air heat pipe heat recovery section and the exhaust air heat pipe heat recovery section form a circulation passage through connecting pipes, and a circulation pump is arranged on the circulation passage.
Further, the heat recovery cycle system comprises: a first connecting pipe and a second connecting pipe which are connected with the fresh air heat pipe and the exhaust heat pipe form a circulating path, and a circulating pump is arranged on the second connecting pipe; one end of each of the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve is connected with the circulating pump, and the other end of each of the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve is connected to the second connecting pipe.
Further, among the heat pipe heat recovery fresh air handling unit, the new trend filter segment includes fresh air inlet, new trend blast gate and high-efficient filter screen, and the new trend heat pipe heat recovery segment includes air supply side heat pipe, and the air supply section includes forced draught blower and air supply wind gap.
Further, in the heat pipe heat recovery exhaust fan unit, the exhaust filter section comprises an air return inlet, an air return fan and a primary filter screen, the exhaust heat pipe heat recovery section comprises an exhaust section heat pipe, and the exhaust section comprises an exhaust outlet and an exhaust fan.
Furthermore, the external structures of the heat pipe heat recovery fresh air unit and the heat pipe heat recovery exhaust fan unit adopt a cold bridge-free aluminum profile and a polyurethane insulation board as a unit frame; the bottom adopts channel steel as support.
Compared with the prior art, the split heat pipe heat recovery unit has higher heat exchange efficiency and more energy saving compared with the original heat exchange fresh air unit, and the split design ensures wider application places. Compared with the original integral heat pipe heat recovery unit, the heat recovery unit has better flexibility, is suitable for the perfect switching of heat exchange in different seasons, and achieves the effect of heat exchange; the original integral heat pipe heat recovery unit is only suitable for summer and has no heat recovery effect in winter. No cross infection and no internal air leakage rate, and solves the problems of use in special places such as hospitals, laboratories and the like. Compared with an integral structure, the structure is easy to overhaul and more convenient to install. The requirements of different places are met, and energy conservation and environmental protection are realized.
Description of the drawings:
the accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a heat pipe heat recovery fresh air handling unit according to the present invention;
FIG. 2 is a schematic view of the heat pipe heat recovery exhaust fan set according to the present invention;
FIG. 3 is a schematic view of the structure of the ventilation system of the present invention;
FIG. 4 is a schematic view of the heat recovery cycle system of the present invention;
FIG. 5 is a first prior art schematic of the present invention;
FIG. 6 is a diagram of a prior art structure of the present invention.
The specific implementation mode is as follows:
in order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-4, is an embodiment of the present invention.
A split type heat pipe heat recovery fresh air unit comprises a ventilation system 1 and a heat recovery circulation system 2 which are matched with each other, wherein the ventilation system 1 comprises a heat pipe heat recovery fresh air unit 11 and a heat pipe heat recovery exhaust fan unit 12; the heat pipe heat recovery fresh air handling unit 11 comprises a fresh air filtering section 111, a fresh air heat pipe heat recovery section 112 and an air supply section 113 which are matched with each other; the heat pipe heat recovery exhaust unit 12 comprises an exhaust filtering section 121, an exhaust heat pipe heat recovery section 122 and an exhaust section 123 which are matched with each other; the fresh air heat pipe heat recovery section 112 and the exhaust air heat pipe heat recovery section 122 form a circulation path through the connecting pipe 3, and the circulation path is provided with a circulation pump 4.
The heat recovery cycle system 2 includes: a first connecting pipe 31 and a second connecting pipe 32 which are connected with the fresh air heat pipe and the exhaust heat pipe form a circulation passage, and a circulation pump 4 is arranged on the second connecting pipe 32; one end of the first electromagnetic valve 21, one end of the second electromagnetic valve 22, one end of the third electromagnetic valve 23 and one end of the fourth electromagnetic valve 24 are respectively connected with the circulating pump 4, and the other end of the first electromagnetic valve is connected with the second connecting pipe 32, and the first connecting pipe and the second connecting pipe are not provided with necessary auxiliary devices: the device comprises a first filter 251, a second filter 251, a first pressure gauge 261, a second pressure gauge 262, a liquid charging valve 27, a liquid storage tank 28, a first coil temperature gauge 291 and a second coil temperature gauge 292.
In heat pipe heat recovery fresh air unit 11, fresh air filter section 111 includes fresh air port 1111, fresh air blast gate 1112 and high efficiency filter net 1113, and fresh air heat pipe heat recovery section 112 includes air supply side heat pipe, and air supply section 113 includes forced draught blower 1131 and closes air port 1132. In the heat pipe heat recovery exhaust unit 12, the exhaust filtering section 121 includes an air return opening 1211, an air return fan 1212 and a primary filter screen 1213, the exhaust heat pipe heat recovery section 122 includes an exhaust heat pipe, and the exhaust section 123 includes an exhaust opening 1231 and an exhaust fan 1232.
The external structures of the heat pipe heat recovery fresh air unit and the heat pipe heat recovery exhaust unit adopt a cold bridge-free aluminum profile and a polyurethane insulation board as a unit frame; the bottom adopts channel steel as support.
The working process of the invention is as follows:
ventilation system as in fig. 3, principle: a brand new wind heat recovery mode: when an indoor environment detector detects that the indoor environment quality (PM2.5, VOC, CO2 and the like) is poor, the heat pipe heat recovery fresh air unit and the heat pipe heat recovery exhaust unit are automatically started at the same time, at the moment, a fresh air valve (electric) is opened, a return air valve (electric) is opened, a blower is started, an exhaust fan is started, a circulating pump is started, outdoor fresh air and indoor return air simultaneously pass through a fresh air inlet and a return air inlet respectively, are filtered by a high-efficiency filter screen and a primary filter screen respectively and then pass through a fresh air heat pipe and an exhaust heat pipe respectively, a cold medium circulates inside the two heat pipes through the circulating pump, so that heat exchange is carried out on the introduced outdoor fresh air and the exhausted indoor return air, the outdoor fresh air is sent to the indoor through the blower, and the; when the indoor environment detector detects that the indoor environment quality (PM2.5, VOC, CO2 and the like) reaches a certain range value of a set value, the wind speed of the fan can be automatically adjusted, and energy consumption is reduced.
The heat recovery circulation system is as shown in figure 4, and the principle is as follows: (1) when the air-conditioning water heater is used in summer, the electromagnetic valve 1 and the electromagnetic valve 4 are opened, the electromagnetic valve 2 and the electromagnetic valve 3 are closed, a low-temperature liquid refrigerant enters the water pump, is discharged through the electromagnetic valve 1, enters the filter 2 for filtration, enters the fresh air heat pipe for evaporation and heat absorption, is changed into a medium-temperature gas-liquid mixture, enters the exhaust air heat pipe for condensation and heat dissipation, is changed into a low-temperature liquid refrigerant, passes through the electromagnetic valve 4 after being filtered by the filter 1, and finally returns to the circulating pump, so that the effect of heat. Outdoor hot air is cooled and sent into the room through the fresh air heat pipe, and indoor cold air is heated and heated through the exhaust air heat pipe and discharged out of the room, so that the energy-saving effect is achieved. (2) When the air conditioner is used in winter, the electromagnetic valve 1 and the electromagnetic valve 4 are closed, the electromagnetic valve 2 and the electromagnetic valve 3 are opened, low-temperature liquid refrigerant enters the circulating pump, is discharged through the electromagnetic valve 2, enters the filter 1 for filtration, enters the air exhaust heat pipe for evaporation and heat absorption, is changed into medium-temperature gas-liquid mixture, enters the air supply heat pipe for condensation and heat dissipation, is changed into low-temperature liquid refrigerant, passes through the electromagnetic valve 3 after being filtered by the filter 2, and finally returns to the circulating pump, so that the effect of heat transfer is achieved through repeated circulation. Outdoor cold air is heated by the fresh air heat pipe to be heated and sent into a room, and indoor hot air is cooled by the exhaust heat pipe to be cooled and discharged out of the room, so that the energy-saving effect is achieved.
Compared with the original heat exchange fresh air unit, the split heat pipe heat recovery unit has higher heat exchange efficiency and more energy saving, and the split design ensures wider application places. Compared with the original integral heat pipe heat recovery unit, the heat recovery unit has better flexibility, is suitable for the perfect switching of heat exchange in different seasons, and achieves the effect of heat exchange; the original integral heat pipe heat recovery unit is only suitable for summer and has no heat recovery effect in winter. No cross infection and no internal air leakage rate, and solves the problems of use in special places such as hospitals, laboratories and the like. Compared with an integral structure, the structure is easy to overhaul and more convenient to install. The requirements of different places are met, and energy conservation and environmental protection are realized.
The invention is characterized in that outdoor fresh air is introduced, indoor turbid air is discharged, and heat exchange is carried out on indoor and outdoor air heat through an environment-friendly refrigerant, so that excessive loss of the discharged indoor air heat is avoided, the heat of the introduced fresh air is improved, an energy-saving effect is achieved, and filter screens with different grades are arranged in a unit, so that indoor cleanliness is ensured; in addition, the unit is controlled by the PLC, so that the system is more intelligent, convenient and reasonable.
While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. The utility model provides a new fan group of split type heat pipe heat recovery which characterized in that: the heat recovery system comprises a ventilation system and a heat recovery circulation system which are matched with each other, wherein the ventilation system comprises a heat pipe heat recovery fresh air unit and a heat pipe heat recovery exhaust fan unit; the heat pipe heat recovery fresh air unit comprises a fresh air filtering section, a fresh air heat pipe heat recovery section and an air supply section which are matched with each other; the heat pipe heat recovery exhaust unit comprises an exhaust filtering section, an exhaust heat pipe heat recovery section and an exhaust section which are matched with each other; the fresh air heat pipe heat recovery section and the exhaust air heat pipe heat recovery section form a circulation passage through connecting pipes, and a circulation pump is arranged on the circulation passage.
2. The split heat pipe heat recovery fresh air handling unit of claim 1, wherein: the heat recovery cycle system comprises: a first connecting pipe and a second connecting pipe which are connected with the fresh air heat pipe and the exhaust heat pipe form a circulating path, and a circulating pump is arranged on the second connecting pipe; one end of each of the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve is connected with the circulating pump, and the other end of each of the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the fourth electromagnetic valve is connected to the second connecting pipe.
3. The split heat pipe heat recovery fresh air handling unit of claim 1 or 2, wherein: among the heat pipe heat recovery fresh air unit, the new trend filter segment includes fresh air inlet, new trend blast gate and high-efficient filter screen, and new trend heat pipe heat recovery section includes air supply side heat pipe, and the air supply section includes forced draught blower and air supply wind gap.
4. The split heat pipe heat recovery fresh air handling unit of claim 1 or 2, wherein: in the heat pipe heat recovery exhaust unit, the exhaust filter section comprises an air return inlet, an air return fan and a primary filter screen, the exhaust heat pipe heat recovery section comprises an exhaust section heat pipe, and the exhaust section comprises an exhaust outlet and an exhaust fan.
5. The split heat pipe heat recovery fresh air handling unit of claim 1 or 2, wherein: the external structures of the heat pipe heat recovery fresh air unit and the heat pipe heat recovery exhaust unit adopt a cold bridge-free aluminum profile and a polyurethane insulation board as a unit frame; the bottom adopts channel steel as support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011599965.9A CN112594831A (en) | 2020-12-29 | 2020-12-29 | Split type heat pipe heat recovery fresh air unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011599965.9A CN112594831A (en) | 2020-12-29 | 2020-12-29 | Split type heat pipe heat recovery fresh air unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112594831A true CN112594831A (en) | 2021-04-02 |
Family
ID=75203835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011599965.9A Pending CN112594831A (en) | 2020-12-29 | 2020-12-29 | Split type heat pipe heat recovery fresh air unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112594831A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114294745A (en) * | 2021-12-29 | 2022-04-08 | 青岛奥利凯中央空调有限公司 | Air duct switching mechanism and energy-saving air conditioner with same |
-
2020
- 2020-12-29 CN CN202011599965.9A patent/CN112594831A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114294745A (en) * | 2021-12-29 | 2022-04-08 | 青岛奥利凯中央空调有限公司 | Air duct switching mechanism and energy-saving air conditioner with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102269466A (en) | Fresh air handling unit | |
| CN202149545U (en) | Fresh air fan set with heat recovery and humidification functions | |
| CN105571017A (en) | Fresh air processing unit | |
| CN105444310A (en) | Double-plate and double-cold-source intelligent air refresher unit | |
| CN102620477B (en) | Double-cold-source full fresh air heat pump dehumidification unit | |
| CN105135739A (en) | Multifunctional heat pump type evaporative condensing air-conditioning unit | |
| CN201155837Y (en) | Heat-reclaiming device | |
| CN109028360B (en) | Household solution dehumidification air conditioning system | |
| CN211823022U (en) | Waste heat recovery system of data center brand-new air conditioning system | |
| CN111928408A (en) | Heat pipe waste heat recovery and reheating fresh air system | |
| CN210070102U (en) | Ground pipe laying water source dehumidification humidification fresh air unit | |
| CN205119549U (en) | Multi -functional heat pump type evaporation formula condensation air conditioning unit | |
| CN202149571U (en) | Fresh air handling unit | |
| CN102954548A (en) | Direct evaporation split type heat pipe heat-exchanger | |
| CN112594831A (en) | Split type heat pipe heat recovery fresh air unit | |
| CN205980700U (en) | Responsibility is dodged all to heat of high -efficient heat recovery | |
| CN210165484U (en) | Temperature-adjusting type swimming pool dehumidifier device through adjusting flow direction of refrigerant | |
| CN106871395A (en) | A kind of pair of double low-temperature receiver heat recovery fresh air units of plate | |
| CN201213130Y (en) | Heat pipe/wind cooling composite heat radiating system used for large power thyristor | |
| CN214148214U (en) | Split type heat pipe heat recovery fresh air unit | |
| CN203007463U (en) | Temperature control system for electroplating shop | |
| CN202835624U (en) | Double-cold-source full-fresh-air heat pump dehumidification machine set with cold-source-carrying heat exchanger | |
| CN203364293U (en) | Indoor and outdoor air heat exchange device for data center machine room | |
| CN106839354B (en) | Inner loop heat recovery fresh air unit | |
| CN105444267A (en) | Air handling unit |
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 |