CN212691935U - Full fresh air constant temperature and humidity air conditioning system - Google Patents
Full fresh air constant temperature and humidity air conditioning system Download PDFInfo
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- CN212691935U CN212691935U CN202021195324.2U CN202021195324U CN212691935U CN 212691935 U CN212691935 U CN 212691935U CN 202021195324 U CN202021195324 U CN 202021195324U CN 212691935 U CN212691935 U CN 212691935U
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Abstract
The utility model relates to a full fresh air constant temperature and humidity air conditioning system, full fresh air constant temperature and humidity air conditioning system includes: the system comprises an outdoor temperature and humidity sensor, an indoor temperature and humidity sensor, an air conditioning unit, a fresh air system, a remote monitor and a master control system; the air conditioning unit comprises a cabinet, an air conditioning controller, a blower, a fresh air electric regulating valve, a return air electric regulating valve, a filtering system, a wet film system and a refrigerating system, wherein the blower, the fresh air electric regulating valve, the return air electric regulating valve, the filtering system, the wet film system and the refrigerating system are respectively and electrically connected with the air conditioning controller; the air conditioner controller controls the opening degrees of the fresh air electric regulating valve and the return air electric regulating valve according to the first temperature and humidity signal and the second temperature and humidity signal; the fresh air system is communicated with a fresh air inlet of the air conditioning unit; the master control system is electrically connected with the outdoor temperature and humidity sensor, the indoor temperature and humidity sensor, the air conditioning unit, the fresh air system and the remote monitor respectively, and the master control system controls the opening and closing of the air conditioning unit and the fresh air system according to the first temperature and humidity signal and the second temperature and humidity signal.
Description
Technical Field
The utility model relates to a cold wind formula air conditioning system technical field especially relates to a full fresh air constant temperature and humidity air conditioning system.
Background
With the continuous progress of the scientific and technological level and the continuous improvement of the quality of life, the requirements of people on the indoor air quality are higher and higher, and especially the requirements of various machine rooms, laboratories, storage rooms and the like on the high-quality air quality are also particularly urgent. At present, two common methods are adopted for air treatment in various machine rooms: one is that the fresh air is directly sent to the room through a fan, a common constant temperature and humidity machine is installed in the room, and the temperature fluctuation of the room is large due to the difference of the fresh air temperature in each season, so that the room temperature and humidity can not meet the requirements of the machine room; the other type is that a full fresh air conditioner unit, a dehumidifier, a humidifier and a heater are adopted to form a system, the full fresh air conditioner is responsible for controlling the room temperature, the room humidity is adjusted by opening the dehumidifier and the humidifier, the temperature is adjusted by adopting electric heating mostly, the energy is not saved, the control precision cannot meet the room temperature and humidity requirements, and the unit operation reliability cannot be guaranteed because the system is not a control system.
In addition, the global resource shortage is increasing day by day, the power is short, the price of electricity is rising, the energy-saving problem has attracted the high attention of the government, and how to save energy has been put into the agenda of people. Therefore, how to realize the constant-temperature and constant-humidity air conditioning system can not only meet the requirements of the temperature and the humidity of indoor air, but also realize high-precision control and energy conservation, and is a technical problem which needs to be solved by most of air conditioning engineering technicians at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the problem that prior art exists, provide one kind and can also realize energy-conserving full new trend constant temperature and humidity air conditioning system when not only satisfying the humiture requirement of indoor air but also can carrying out high accuracy control.
In order to achieve the above object, the utility model provides a full fresh air constant temperature and humidity air conditioning system, full fresh air constant temperature and humidity air conditioning system includes: the system comprises an outdoor temperature and humidity sensor, an indoor temperature and humidity sensor, an air conditioning unit, a fresh air system, a remote monitor and a master control system;
the outdoor temperature and humidity sensor is arranged outdoors to generate a first temperature and humidity signal;
the indoor temperature and humidity sensor is arranged indoors and generates a second temperature and humidity signal;
the air conditioning unit comprises a cabinet, a blower, a fresh air electric regulating valve, a return air electric regulating valve, a filtering system, a wet film system, a refrigerating system and an air conditioning controller;
the lower end of the cabinet is provided with an air supply outlet; a mixing cavity is arranged at the upper end of the cabinet, and a fresh air inlet and a return air inlet are respectively formed in the adjacent surfaces of the mixing cavity;
the air feeder is arranged in the cabinet, and the air outlet of the air feeder corresponds to the air supply outlet;
the fresh air electric regulating valve is arranged at the fresh air port of the cabinet;
the return air electric regulating valve is arranged at the return air inlet of the cabinet;
the filtering system is arranged in the cabinet and is opposite to the fresh air inlet;
the wet film system is arranged in the cabinet and is positioned below the filtering system;
the refrigerating system is arranged in the cabinet and is opposite to the blower; the refrigeration system comprises a precooling unit and a copious cooling unit, and the precooling unit and the copious cooling unit are sequentially connected;
the air conditioner controller is respectively electrically connected with the air feeder, the fresh air electric regulating valve, the return air electric regulating valve, the filtering system, the wet film system and the refrigerating system; the air conditioner controller controls the opening degrees of the fresh air electric regulating valve and the return air electric regulating valve according to the first temperature and humidity signal and the second temperature and humidity signal;
the fresh air system is communicated with the fresh air inlet of the air conditioning unit;
the master control system is electrically connected with the outdoor temperature and humidity sensor, the indoor temperature and humidity sensor, the air conditioning unit, the fresh air system and the remote monitor respectively, and the master control system controls the air conditioning unit and the fresh air system to be opened and closed according to the first temperature and humidity signal and the second temperature and humidity signal.
Preferably, RS485 communication is adopted between the remote monitor and the master control system.
Preferably, the filtration system comprises a self-cleaning filter cartridge.
Preferably, a preheating device is further arranged in the mixing cavity and preheats fresh air entering from the fresh air port.
Preferably, the fresh air system comprises a fresh air fan; and the air outlet of the fresh air fan is communicated with the fresh air inlet of the air conditioning unit.
Preferably, the fresh air constant-temperature and constant-humidity air conditioning system further comprises a frequency converter; the frequency converter is connected with the new fan.
Further preferably, the new fan is a centrifugal EC fan.
Preferably, the fresh air electric regulating valve and the return air electric regulating valve both adopt double-layer aluminum alloy electric closed air valves.
The embodiment of the utility model provides a whole fresh air constant temperature and humidity air conditioning system, adopt the dual system of accurate air conditioner and new trend system to set up in coordination, the remote monitoring management, possess air conditioner new trend system duplex switching function, usable winter, spring, the outdoor low temperature of three seasons of autumn and summer morning and evening period exchanges with indoor produced heat, energy-concerving and environment-protective low carbon, and intelligent mode, humanized design, and operation is thus simple, and simultaneously, dust in the high-efficient filtered air still, the bacterium, carbon dioxide, nitric oxide, formaldehyde, xylol, harmful gas such as peculiar smell and smog, avoid indoor air secondary cross contamination, and have unique antifog haze function, the noise is low, and the high-performance cost ratio is independently operated.
Drawings
Fig. 1 is a block diagram of a fresh air constant temperature and humidity air conditioning system provided in an embodiment of the present invention;
fig. 2 is a schematic structural view of a fresh air constant temperature and humidity air conditioning system provided by an embodiment of the present invention;
fig. 3 is a schematic view of a part of an air conditioning unit of a fresh air constant temperature and humidity air conditioning system provided by an embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
The embodiment of the utility model provides a brand-new wind constant temperature and humidity air conditioning system that provides, adopt the dual system of accurate air conditioner and new trend system to set up in coordination, the remote monitoring management, possess air conditioner new trend system duplex switching function, usable winter, spring, the outdoor low temperature of three seasons of autumn and summer morning and evening period exchanges with indoor produced heat, energy-concerving and environment-protective low carbon, and intelligent mode, humanized design, and operation is thus simple, and simultaneously, dust in the high-efficient filtered air still, the bacterium, carbon dioxide, nitric oxide, formaldehyde, xylol, harmful gas such as peculiar smell and smog particulate matter, avoid indoor air secondary cross contamination, and have unique antifog haze function, the noise is low, and the high-speed wireless router is convenient to install, but independent operation, the sexual valence relative altitude.
It is to be understood that the following description of the specific embodiments is intended to illustrate and not to limit the invention.
Fig. 1, fig. 2, and fig. 3 are a block diagram, a schematic diagram, and a schematic diagram of a part of an air conditioning unit of a fresh air constant temperature and humidity air conditioning system provided by an embodiment of the present invention. As shown in fig. 1, 2 and 3:
the embodiment of the utility model provides a brand-new wind constant temperature and humidity air conditioning system includes: outdoor temperature and humidity sensor 1, indoor temperature and humidity sensor 2, air conditioning unit 3, new trend system 4, total control system 5 and remote monitoring ware 19.
It is specific, for monitoring indoor outer humiture and providing the reference data value, the utility model provides a fresh air constant temperature and humidity air conditioning system includes outdoor temperature and humidity sensor 1 and indoor temperature and humidity sensor 2. The outdoor temperature and humidity sensor 1 is used for monitoring outdoor temperature and humidity and generating a first temperature and humidity signal, the indoor temperature and humidity sensor 2 is used for monitoring indoor temperature and humidity and generating a second temperature and humidity signal, and therefore follow-up processing is conducted according to the first temperature and humidity signal and the second temperature and humidity signal.
The air conditioning unit 3 is one of the refrigerating systems of the whole fresh air constant temperature and humidity air conditioning system of the application, and the air conditioning unit 3 comprises a cabinet 6, a blower 7, a fresh air electric regulating valve 8, a return air electric regulating valve 9, a filtering system 10, a wet film system 11, a refrigerating system 12 and an air conditioning controller 13. The cabinet 6 is a casing of the air conditioning unit 3, and provides installation positions for a blower 7, a fresh air electric control valve 8, a return air electric control valve 9, a filtering system 10, a wet film system 11, a refrigerating system 12 and an air conditioning controller 13, in addition, a blowing port (not shown in the figure) is opened at the lower end of the cabinet 6, the air after being processed in the cabinet 6 of the air conditioning unit 3 is conveyed to a corresponding indoor position through the blowing port, in order to accelerate the conveyance of the air, the blower 7 is arranged in the cabinet 6 of the air conditioning unit 3, and the air outlet position of the blower 7 corresponds to the position of the blowing port, so that the air after being processed in the air conditioning unit 3 is conveyed to the corresponding indoor position. The upper end of the cabinet 6 is provided with a mixing chamber 14 for providing a relatively sealed space for mixing outdoor fresh air and indoor return air, the adjacent surfaces of the mixing chamber 14 are respectively provided with a fresh air inlet 15 and a return air inlet 16, the outdoor fresh air flows into the mixing chamber 14 from the fresh air inlet 15, the indoor return air flows into the mixing chamber 14 from the return air inlet 16, and the outdoor fresh air and the indoor return air are fully mixed in the mixing chamber 14.
In order to regulate and control the proportion of fresh air and return air in the mixing cavity 14 according to the difference value of the temperature and the humidity of the inside and the outside, the fresh air electric regulating valve 8 is arranged at a fresh air inlet 15 of the cabinet 6 and used for regulating and controlling the air inlet amount of the fresh air in the mixing cavity 14, and the return air electric regulating valve 9 is arranged at a return air inlet 16 of the cabinet 6 and used for regulating and controlling the air inlet amount of the return air in the mixing cavity 14, so that the proportion of the fresh air and the return air in the mixing cavity 14 can be regulated and controlled. In order to realize the accurate regulation and control of the fresh air constant-temperature and constant-humidity air conditioning system, the fresh air electric regulating valve 8 and the return air electric regulating valve 9 both preferentially select a double-layer aluminum alloy electric closed air valve, so that intelligent air mixing is realized, and the indoor constant temperature and humidity are ensured.
Filtration system 10 is this system's filtration equipment, makes this application have the diversified filtering capability of new trend to have unique antifog haze processing function. In detail, filtration system 10 installs in rack 6, and is relative with fresh air inlet 15's position to harmful gas such as dust, bacterium, carbon dioxide, nitric oxide, formaldehyde, xylol, peculiar smell and smog particulate matter among the high efficiency filtered air has both carried out purification treatment to the new trend, carries out purification treatment to the return air again, avoids indoor air cross contamination, guarantees the cleanliness factor of indoor air. In one particular implementation, the filtration system 10 includes a self-cleaning filter cartridge having a filter area several times larger than the panel style, self-cleaning the filter cartridge, reduced maintenance, and easy replacement.
In order to regulate and control the indoor humidity according to the requirement and maintain the constant-humidity environment, the fresh air constant-temperature and constant-humidity air conditioning system further comprises a wet film system 11, wherein the wet film system 11 is installed in the cabinet 6 and is located below the filtering system 10 and used for regulating and controlling the humidity of the purified air, so that the indoor humidity is indirectly regulated and controlled, and the indoor constant temperature is realized.
The refrigeration system 12, which is the main refrigeration equipment of the air conditioning unit 3, is installed in the cabinet 6 opposite to the blower 7, and is used for refrigerating the air delivered to the room, thereby maintaining a constant temperature environment in the room. In a specific embodiment, the refrigeration system 12 includes a pre-cooling unit 17 and a cryogenic unit 18, the pre-cooling unit 17 is connected to the cryogenic unit 18 in sequence, the pre-cooling unit 17 is used for pre-cooling the air entering the air conditioning unit 3, and the cryogenic unit 18 is used for further cooling the air entering the air conditioning unit 3, that is, by pre-cooling and cryogenic cooling the air, the fresh air outside the room is cooled to the environmental temperature required by the user, and the problem of excessive load of the compressor in a direct primary cooling process is avoided.
The air conditioning controller 13 is used as a central processing unit of the air conditioning unit 3, and the air conditioning controller 13 is electrically connected with the blower 7, the fresh air electric regulating valve 8, the return air electric regulating valve 9, the filtering system 10, the wet film system 11 and the refrigerating system 12 respectively. The master control system 5 sends the first temperature and humidity signal and the second temperature and humidity signal to the air conditioner controller 13, and the air conditioner controller 13 controls the opening degrees of the fresh air electric regulating valve 8 and the return air electric regulating valve 9 according to the first temperature and humidity signal and the second temperature and humidity signal, so that intelligent air mixing is performed, and indoor constant temperature and humidity are guaranteed.
The fresh air system 4 is another refrigerating system of the all fresh air constant temperature and humidity air conditioning system. The fresh air system 4 is communicated with a fresh air port 15 of the air conditioning unit 3 and used for guiding outdoor fresh air into a room. Further, the fresh air system 4 comprises a fresh air machine 21, an air outlet of the fresh air machine 21 is communicated with a fresh air inlet 15 of the air conditioning unit 3, wherein the fresh air machine 21 comprises an automatic air inlet brake, an automatic exhaust brake, an air inlet fan and an exhaust fan, the fresh air machine 21 and the air conditioning unit 3 are correspondingly divided into an upper layer and a lower layer, the automatic air inlet brake and the air inlet fan are arranged on the upper layer of the fresh air machine 21, the automatic exhaust brake and the exhaust fan are arranged on the lower layer of the fresh air machine 21, the fresh air machine 21 and the upper layer and the lower layer of the air conditioning unit 3 are respectively connected into a whole through pipelines, and an automatic air brake is respectively arranged at the joint of the upper layer and the lower layer, so that intelligent regulation and control are realized, the fresh air refrigerating and heating energy efficiency ratio is particularly high, the whole installation is realized, the fresh air system 4 can. Preferably, the new fan 21 is a centrifugal EC fan, and has the characteristics of large air volume, high residual pressure, low noise, low power consumption and the like.
Meanwhile, the fresh air constant temperature and humidity air conditioning system further comprises a frequency converter 22, wherein the frequency converter 22 is connected with the fresh air fan 21 and used for controlling the fresh air fan 21 to realize stepless speed change, namely stepless speed regulation is carried out on the fresh air fan 21, and air supply quantity is automatically adjusted according to air supply temperature.
In addition, as the northern area has the characteristics of long winter time, low average temperature and dry climate, the refrigeration in winter by using the mixture of outdoor fresh air and return air in winter and transition seasons has obvious natural advantages and obvious energy-saving effect. However, if the fresh air and the return air are directly mixed, a fog area can appear at the mixing point in a severe cold area, and in order to avoid the above situation, the fresh air needs to be preheated, so that a preheating device 20 is also arranged in the mixing cavity 14 and used for preheating the fresh air entering from the fresh air inlet 15, and the final temperature of air preheating is generally 3-5 ℃.
The general control system 5 is the central processing unit of the full fresh air constant temperature and humidity air conditioning system, and is electrically connected with the outdoor temperature and humidity sensor 1, the indoor temperature and humidity sensor 2, the air conditioning unit 3 and the fresh air system 4 respectively, and is used for controlling the opening and closing of the air conditioning unit 3 and the fresh air system 4 according to the first temperature and humidity signal and the second temperature and humidity signal. When the outdoor temperature is lower than the indoor set temperature range, the master control system 5 stops the operation of the air conditioning unit 3, opens the fresh air system 4, filters the outdoor cold air and then guides the filtered outdoor cold air into the indoor space, and simultaneously discharges the indoor hot air to achieve the purpose of cooling; when the outdoor temperature is higher than the indoor set temperature, the fresh air system 4 is closed and the air conditioning unit 3 is started to reduce the indoor temperature to the set temperature.
Additionally, the utility model provides a full fresh air constant temperature and humidity air conditioning system still is equipped with remote monitoring ware 19, remote monitoring ware 19 and total control system 5 electric connection for carry out the remote monitoring management to full fresh air constant temperature and humidity air conditioning system, realize high accuracy temperature and humidity control, and standard configuration RS485 communication interface, adopt the RS485 communication between remote monitoring ware 19 and the total control system 5 promptly, but remote monitoring management, and possess the air conditioner duplex switching function.
The components of the fresh air constant temperature and humidity air conditioning system and the connection relationship between the components are introduced, and the working principle of the fresh air constant temperature and humidity air conditioning system applied to the cold air type machine room is described in detail below with reference to fig. 1 to 3.
In this embodiment, the main functions of the fresh air constant temperature and humidity air conditioning system are to realize circulation and ventilation between indoor air and outdoor air, and also to purify air, and at present, the air conditioner in the machine room is set to refrigerate at 18 ℃ or automatically at 24 ℃, and is basically turned on all the year round, so that the electricity charge waste phenomenon is serious. And the temperature rise of the communication room is caused by heat generated by the running power consumption of equipment. If the heat generated by the machine room can be exchanged by using the outdoor low temperature in the three seasons of winter, spring and autumn and the early and late summer, a large amount of energy consumption of the air conditioner of the machine room is saved. According to the relevant regulations of the operation of electronic equipment, the normal operation can be realized when the temperature of a common machine room is kept at 10-35 ℃ and the humidity is 10-90%.
When the system works, the outdoor temperature and humidity sensor 1 and the indoor temperature and humidity sensor 2 respectively detect indoor and outdoor temperature and humidity, respectively generate a first temperature and humidity signal and a second temperature and humidity signal, and send the signals to the master control system 5. If the indoor temperature is within the set temperature range, the system is in a standby state; when the outdoor temperature is lower than the set temperature range of the indoor machine room, the master control system 5 controls the air conditioning unit 3 to be closed, the fresh air system 4 is opened, the outdoor cold air is filtered by the filtering system 10 and then is led into the room, and meanwhile, the indoor hot air is discharged, so that the purpose of cooling is achieved; if the outdoor temperature is higher than the set temperature, the fresh air system 4 is closed and the air conditioning unit 3 is started to cool; if the temperature of the machine room reaches the lowest allowable temperature (for example, 15 ℃), the system simultaneously closes the fresh air system 4 and the air conditioning unit 3, and the system is started after the temperature of the standby room rises; if the system detects that the indoor temperature is higher than the allowable maximum temperature (which can be set according to the user requirement, for example, 30 ℃), the air conditioner is forcibly started to cool, and the safety of equipment in the machine room is ensured.
In addition, among the control system, adopt advanced DDC controller, combine PID algorithm, through the operation of the PID value control compressor of enthalpy difference, thereby the refrigerating output and the dehumidification volume of regulation and control air conditioning unit 3, through actual temperature and set temperature comparison, output a PID control value control new trend electrical control valve 8 and return air electrical control valve 9 open the size, through actual humidity and set humidity comparison, through PID operation, output PID control value control wet membrane system 11's humidification volume, thereby realize the accurate control of system humiture.
The embodiment of the utility model provides a whole fresh air constant temperature and humidity air conditioning system, adopt the dual system of accurate air conditioner and new trend system to set up in coordination, the remote monitoring management, possess air conditioner new trend system duplex switching function, usable winter, spring, the outdoor low temperature of three seasons of autumn and summer morning and evening period exchanges with indoor produced heat, energy-concerving and environment-protective low carbon, and intelligent mode, humanized design, and operation is thus simple, and simultaneously, dust in the high-efficient filtered air still, the bacterium, carbon dioxide, nitric oxide, formaldehyde, xylol, harmful gas such as peculiar smell and smog, avoid indoor air secondary cross contamination, and have unique antifog haze function, the noise is low, and the high-performance cost ratio is independently operated.
In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.
In the description herein, the description of the terms "a particular embodiment," "some embodiments," "an embodiment," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. The utility model provides a full fresh air constant temperature and humidity air conditioning system which characterized in that, full fresh air constant temperature and humidity air conditioning system includes: the system comprises an outdoor temperature and humidity sensor, an indoor temperature and humidity sensor, an air conditioning unit, a fresh air system, a remote monitor and a master control system;
the outdoor temperature and humidity sensor is arranged outdoors to generate a first temperature and humidity signal;
the indoor temperature and humidity sensor is arranged indoors and generates a second temperature and humidity signal;
the air conditioning unit comprises a cabinet, a blower, a fresh air electric regulating valve, a return air electric regulating valve, a filtering system, a wet film system, a refrigerating system and an air conditioning controller;
the lower end of the cabinet is provided with an air supply outlet; a mixing cavity is arranged at the upper end of the cabinet, and a fresh air inlet and a return air inlet are respectively formed in the adjacent surfaces of the mixing cavity;
the air feeder is arranged in the cabinet, and the air outlet of the air feeder corresponds to the air supply outlet;
the fresh air electric regulating valve is arranged at the fresh air port of the cabinet;
the return air electric regulating valve is arranged at the return air inlet of the cabinet;
the filtering system is arranged in the cabinet and is opposite to the fresh air inlet;
the wet film system is arranged in the cabinet and is positioned below the filtering system;
the refrigerating system is arranged in the cabinet and is opposite to the blower; the refrigeration system comprises a precooling unit and a copious cooling unit, and the precooling unit and the copious cooling unit are sequentially connected;
the air conditioner controller is respectively electrically connected with the air feeder, the fresh air electric regulating valve, the return air electric regulating valve, the filtering system, the wet film system and the refrigerating system; the air conditioner controller controls the opening degrees of the fresh air electric regulating valve and the return air electric regulating valve according to the first temperature and humidity signal and the second temperature and humidity signal;
the fresh air system is communicated with the fresh air inlet of the air conditioning unit;
the master control system is electrically connected with the outdoor temperature and humidity sensor, the indoor temperature and humidity sensor, the air conditioning unit, the fresh air system and the remote monitor respectively, and the master control system controls the air conditioning unit and the fresh air system to be opened and closed according to the first temperature and humidity signal and the second temperature and humidity signal.
2. The fresh air constant temperature and humidity air conditioning system according to claim 1, wherein the remote monitor and the master control system are communicated by RS 485.
3. The fresh air constant temperature and humidity air conditioning system of claim 1, wherein the filter system comprises a self-cleaning filter cartridge.
4. The fresh air constant temperature and humidity air conditioning system according to claim 1, wherein a preheating device is further disposed in the mixing chamber to preheat fresh air entering from the fresh air inlet.
5. The fresh air constant temperature and humidity air conditioning system of claim 1, wherein the fresh air system comprises a fresh air machine; and the air outlet of the fresh air fan is communicated with the fresh air inlet of the air conditioning unit.
6. The fresh air constant temperature and humidity air conditioning system according to claim 5, further comprising a frequency converter; the frequency converter is connected with the new fan.
7. The fresh air constant temperature and humidity air conditioning system according to claim 5, wherein the fresh air fan is a centrifugal EC fan.
8. The fresh air constant temperature and humidity air conditioning system according to claim 1, wherein the fresh air electric regulating valve and the return air electric regulating valve are both double-layer aluminum alloy electric closed air valves.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021195324.2U CN212691935U (en) | 2020-06-24 | 2020-06-24 | Full fresh air constant temperature and humidity air conditioning system |
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| CN202021195324.2U CN212691935U (en) | 2020-06-24 | 2020-06-24 | Full fresh air constant temperature and humidity air conditioning system |
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| CN212691935U true CN212691935U (en) | 2021-03-12 |
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