CN107218665B - Frequency conversion household type fresh air purification full air conditioning system - Google Patents
Frequency conversion household type fresh air purification full air conditioning system Download PDFInfo
- Publication number
- CN107218665B CN107218665B CN201710582564.4A CN201710582564A CN107218665B CN 107218665 B CN107218665 B CN 107218665B CN 201710582564 A CN201710582564 A CN 201710582564A CN 107218665 B CN107218665 B CN 107218665B
- Authority
- CN
- China
- Prior art keywords
- air
- water
- valve
- heat exchanger
- return
- 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
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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
-
- 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
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
-
- 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]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
A frequency-conversion household fresh air purifying full air conditioning system is mainly composed of fresh air purifying processor and frequency-conversion air-cooling cold/hot water machine, in the fresh air purifying processor the fresh air and return air are mixed in mixing section, filtered by coarse filter, heat-exchanged and dehumidified with freezing/cooling water in surface heat exchanger, then passed through high-efficiency filter and fed into room by air-supply outlet 2 The concentration and PM2.5 are regulated, the annual healthy and comfortable indoor environment is provided to the maximum extent, and the energy utilization rate is improved; in transition season, the system can be empty without starting the refrigeratorFiltering the gas according to the PM2.5 and CO in the room 2 Concentration adjusts new trend proportion and forced draught blower rotational speed, guarantees the indoor ventilation of transition season, has filled traditional air conditioner and has not added the blank of any regulation and control to the indoor environment in transition season, in addition, still can combine cell-phone APP to realize the remote monitoring and the control of parameter.
Description
Technical Field
The invention belongs to the technical field of heating ventilation air conditioners, and particularly relates to a variable-frequency household fresh air purification full air conditioning system.
Background
With the improvement of living standard, the requirements of people on the comfort and the health of human living environment are improved. In indoor environmental control of houses, villas, independent offices, and the like, the application of split air conditioners and multi-split air conditioners still accounts for a large share. Many problems occur in the application process, the requirements of users on indoor air quality and environmental comfort cannot be completely met, and the centralized regulation of the indoor environment is carried forward.
First, due to the deterioration of outdoor air quality in recent years, it is desired to create a healthy, clean indoor environment. However, the split air conditioner and the multi-split air conditioner which are commonly used at present can only process the temperature and the humidity, and the concentration of PM2.5 and the CO 2 Monitoring and control of parameters such as concentration and TVOC concentration are ineffective. Users can only hope to add additional equipment or open windows to ventilate to solve such problems. However, the addition of equipment and the introduction of untreated fresh air generally do not solve these problems well. Moreover, it is often most convenient to control the indoor environment using a single set of equipment. People hope to achieve multi-parameter accurate regulation of temperature, humidity, air freshness and cleanliness by one set of equipment.
Secondly, the control of the traditional air conditioner is start-stop control. When the indoor environmental parameters reach the set value, the operation is stopped by time-space adjustment, and the operation is started when the indoor environmental parameters are lower than the lower limit of the set value. The energy consumption of the system in the process of frequent starting and stopping is much larger than that of the continuous operation of the variable frequency air conditioner. In addition, such start-stop operation creates significant indoor temperature fluctuations, adding to the discomfort of the human body. The full-variable-frequency cold and heat source matching linkage operation can achieve the dual purposes of saving energy and reducing temperature fluctuation, and can better replace start-stop operation.
Third, the split type air conditioners and multi-split air conditioners for domestic use are not operated in the transition season, but the PM2.5 concentration and CO concentration in the indoor environment are increased 2 The problem of increased concentration still remains, which is very detrimental to the health and comfort of the persons in the room.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a frequency conversion household fresh air purification full air conditioning system, which adopts a central air conditioner capable of introducing fresh air and circulating air for purification treatment, realizes miniaturization, meets the requirements of health, comfortable temperature control, beauty, quickness and technical performance, can obtain better energy-saving effect, and has obvious application advantages in small indoor environments.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a frequency conversion family formula new trend purifies complete air conditioning system, mainly comprises new trend purification processor 1 and frequency conversion air-cooled cold/hot water machine, new trend purification processor 1 is including the pipeline that has new wind gap 2 and return air inlet 3, and the new trend that the new wind gap 2 was sent into mixes in the mixing section of pipeline with the return air that return air inlet 3 was sent into, filters through coarse filter 4, gets into surface heat exchanger 5 and carries out the heat transfer dehumidification with refrigerated water or cooling water, and the air that is handled through surface heat exchanger 5 gets into high efficiency filter 7 under the drive of forced draught blower 6 and filters once more, later sends into indoor by supply-air outlet 8.
The variable-frequency air-cooled cold/hot water machine comprises a variable-frequency compressor 11, wherein the variable-frequency compressor 11 is connected with a pipe orifice a of a four-way reversing valve 12, a pipe orifice b of the four-way reversing valve 12 is connected with an air-cooled heat exchanger 13, the air-cooled heat exchanger 13 is connected with a water-cooled heat exchanger 14, a refrigerant exchanges heat with chilled water or cooling water in the water-cooled heat exchanger 14 and then is connected with a pipe orifice d of the four-way reversing valve 12, a pipe orifice c of the four-way reversing valve 12 is connected with the variable-frequency compressor 11 in a return mode through a gas-liquid separator 15, the chilled water or cooling water after heat exchange is sent to a surface type heat exchanger 5 to exchange heat with air, and then returns to the water-cooled heat exchanger 14 to perform circulating refrigeration or heat absorption.
Under the working condition of summer, the pipe orifice a and the pipe orifice b of the four-way reversing valve 12 are communicated in the valve, and the pipe orifice c and the pipe orifice d are communicated in the valve, so that the outlet of the variable frequency compressor 11 is communicated with the inlet of the air-cooled heat exchanger 13, and the air-cooled heat exchanger 13 is used as a condenser;
under the working condition of winter, the pipe orifice a and the pipe orifice d of the four-way reversing valve 12 are communicated in the valve, the pipe orifice b and the pipe orifice c are communicated in the valve, so that the outlet of the variable frequency compressor 11 is communicated with the water-cooled heat exchanger 14, the air-cooled heat exchanger 13 is used as an evaporator, the outlet of the refrigerant side of the air-cooled heat exchanger is communicated with the inlet of the gas-liquid separator 15, and the outlet of the gas-liquid separator 15 is connected back to the inlet of the variable frequency compressor 11.
The water-cooled heat exchanger 14 is an evaporator or a condenser, a variable frequency water pump 16 with an integrated pump valve is arranged on a water supply pipeline of the surface heat exchanger 5, an electronic expansion valve 27 is arranged on a connecting pipeline of the air-cooled heat exchanger 13 and the water-cooled heat exchanger 14, the air supply outlet 8 is arranged at the high indoor position, and an ABS (acrylonitrile butadiene styrene) or wood air outlet is selected to avoid the dewing of the air outlet; the air return opening 3 is arranged on the side wall at the height of 50-70 cm from the ground, so that personnel can be ensured to be in a backflow area.
The surface type heat exchanger 5 adopts a full-countercurrent 8-row pipe design, the water supply temperature is 9 ℃ under the standard refrigeration working condition, and the water return temperature is 16 ℃; in summer, the air-water can fully exchange heat and dehumidify, and the temperature of the air supply processed by the air-water is not too low. The lower part of the surface type heat exchanger 5 is provided with a water condensation disc 9, the water condensation disc 9 discharges condensed water to the outside through a water condensation discharge pipe 10, the blower 6 adopts a high-efficiency centrifugal fan, and a direct current brushless motor is configured.
A return air temperature sensor 17 and CO are arranged at the return air inlet 3 2 A concentration sensor 18 and a PM2.5 concentration sensor 24; the opening degree of the fresh air valve 19 and the return air valve 20 is set by CO 2 Concentration set point (e.g. 500 PPM) and return air CO 2 The concentration is compared to control and regulate if the air returns CO 2 When the concentration exceeds a set value, the opening of the fresh air valve 19 is increased, and the opening of the return air valve 20 is reduced; if returning CO 2 When the concentration is lower than the set value, the opening of the fresh air valve 19 is reduced, and the opening of the return air valve 20 is increased; the fresh air valve 19 and the return air valveThe air valve 20 is adjusted in a linkage manner, namely when the opening of the fresh air valve 19 is increased, the opening of the return air valve 20 is reduced, and when the opening of the fresh air valve 19 is reduced, the opening of the return air valve 20 is increased; the rotation speed of the blower 6 is controlled by PM2.5 concentration and CO 2 Concentration control when PM2.5 concentration and CO 2 When the concentration control conflicts with each other, CO 2 The concentration only controls whether the fresh air valve 19 is opened or not, and the PM2.5 concentration controls the rotating speed of the blower 6; the frequency of the variable frequency water pump 16 integrated with the pump valve matched with the surface heat exchanger 5 and the opening degree of the proportional regulating water valve in the circulating water loop are controlled according to the comparison of the return air temperature and a set value (for example, 22 ℃), when the return air temperature is close to the set value, the opening degree of the proportional regulating water valve is reduced, the frequency of the water pump is reduced, when the water valve is completely closed, the basic flow is still provided, and the antifreezing effect is achieved in winter.
The supply and return water temperatures of the surface heat exchanger 5 are measured by a supply water temperature sensor 21 and a return water temperature sensor 22, when the frequency of a variable frequency water pump 16 integrated with a pump valve matched with the surface heat exchanger 5 and the opening degree of a water valve change, the supply and return water temperature difference of the surface heat exchanger 5 changes, the frequency of the variable frequency compressor 11 changes according to the temperature difference change and the outdoor temperature change, and the outdoor fan 23 also adjusts the frequency and speed accordingly.
The opening degree of the fresh air inlet 2 and the opening degree of the return air inlet 3 are respectively adjusted by a fresh air valve 19 and a return air valve 20 which are arranged inside, and minimum air inlet openings are designed on the fresh air valve 19 and the return air valve 20 to ensure that fresh air still exists in a circulating air mode and meet the indoor minimum fresh air (about 100 m) 3 H) and simultaneously ensures that the return air volume still exists in a full fresh air mode, thereby obtaining a certain energy-saving effect.
The system is provided with two control modes, wherein one control mode is indoor control, the other control mode is mobile phone remote control, and the indoor control is divided into a manual mode and an automatic mode;
when a manual mode, namely an air conditioning mode, is adopted, the rotating speed of the air feeder 6 is manually set, the rotating speed of the air feeder 6 is constant at the moment, the rotating speed is not changed by comparing the return air temperature with the set value of the return air temperature, the frequency of the variable frequency compressor 11 is changed only according to the comparison between the supply and return water temperature difference and the set value of the return air temperature difference, and the frequency of the outdoor variable frequency fan 23 is correspondingly changed along with the change, so that the indoor constant temperature and constant pressure are maintained;
when the automatic mode is adopted, the air cooling/water heating machine (cold and heat source) is not recommended to be started, is mainly used in transition seasons and is based on CO 2 The concentration control fresh air valve 19 is opened or not and the rotating speed of the blower 6 is changed when the concentration of PM2.5 and CO are 2 CO when the control command of the blower 6 conflicts with the concentration 2 The concentration only controls whether the fresh air valve 19 is opened or not, and the PM2.5 concentration of return air controls the rotating speed of the blower 6;
when the mobile phone is used for remote control, the operation mode, the wind speed regulation, the indoor temperature, humidity and CO can be selected 2 Concentration, PM2.5 concentration history records and instant condition query.
In summer, the water temperature of the water-cooled heat exchanger 14 after air treatment is about 16 ℃, so the system can be connected with a capillary tube radiation cooling system in series for use, and the comfortable condition of the indoor environment is further improved;
in winter, the water supply temperature under the standard heat supply working condition is 40 ℃, and the water return temperature is 33 ℃, so that the condensation temperature is not too high, and the energy efficiency of the whole air-conditioning system can be improved; the system can also work together with an indoor floor heating system, the floor heating system bears heat load (floor heating water supply temperature is kept between 35 and 40 ℃), and the fresh air purification processor 1 only bears fresh air load and can be adjusted in a manual or automatic mode to ensure that the temperature of the treated fresh air is not too high and heat discomfort is caused.
Compared with the prior art, the invention has the beneficial effects that:
1) The invention adopts the fresh air purification processor which can automatically control the fresh air ratio, the return air ratio and the air supply fan, and has better comfort and indoor air quality compared with the traditional air conditioner.
2) The air valves of the fresh air inlet and the return air inlet of the fresh air purification processor are respectively provided with a minimum air inlet so as to ensure that the return air quantity still exists in a fresh air mode and achieve the energy-saving effect, and the fresh air still exists in a circulating air mode and meet the indoor minimum fresh air quantity of 100m 3 The requirement of/h.
3) The forced draught blower adopts high-efficient centrifugal fan, disposes direct current brushless motor, and is efficient, the small in noise for traditional air conditioner. The fresh air purification unit is provided with two stages of filtration (G4 + H12), PM2.5 and most of bacteria and mold are effectively filtered, and the filtration efficiency can reach 95%.
4) The design of variable air volume, variable water volume and variable refrigerant volume (VAV/VVVV/VRV) is realized by adopting an advanced PWM variable frequency water pump, a variable frequency compressor and an outdoor variable frequency fan, so that the energy consumption is reduced, the utilization rate of a cold and heat source unit is improved, and a healthy and comfortable indoor environment is created with the minimum energy consumption.
5) The fresh air purification air conditioning unit can be installed in a suspended ceiling of a kitchen or a toilet, and the space can be saved due to the integrated design of the unit. The double-air-outlet and double-air-return-inlet design of the unit can avoid the crossing of pipelines, reduce the thickness of an interlayer and effectively utilize the space.
Drawings
FIG. 1 is a schematic diagram of the present invention.
FIG. 2 is a schematic view of the structure of the fresh air purification processor of the present invention.
Fig. 3 is a schematic view of the lower drainage structure of the surface heat exchanger of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the drawings and examples.
As shown in figure 1, the frequency conversion household fresh air purification full air conditioning system of the invention is composed of a fresh air purification processor 1 and a frequency conversion air cooling/heating water machine. Referring to fig. 2, the fresh air purification processor 1 comprises a fresh air inlet 2 and two return air inlets 3, fresh air and return air are mixed in a pipeline mixing section, are filtered by a coarse filter 4, and are subjected to heat exchange and dehumidification with freezing/cooling water in a surface heat exchanger 5, air treated under the driving of an air feeder 6 flows through a high-efficiency filter 7 to be filtered, and then is sent into a room through two air supply outlets 8, the air supply outlets 8 are arranged at high positions in the room, ABS or wooden air outlets are selected for use, the condensation of the air inlets is avoided, the return air inlets 3 are arranged on the side wall 50cm-70cm away from the ground, and personnel are ensured to be in a return area. Depending on the season, chilled water or cooling water is selected for use.
The frequency conversion air-cooled cold/hot water machine comprises a frequency conversion compressor 11, wherein the frequency conversion compressor 11 is connected with a pipe orifice a of a four-way reversing valve 12, a pipe orifice b of the four-way reversing valve 12 is connected with an air-cooled heat exchanger 13, the air-cooled heat exchanger 13 is connected with a water-cooled heat exchanger 14, a refrigerant exchanges heat with chilled water or cooling water in the water-cooled heat exchanger 14 and then is connected with a pipe orifice d of the four-way reversing valve 12, a pipe orifice c of the four-way reversing valve 12 is connected back to the frequency conversion compressor 11 through a gas-liquid separator 15, the chilled water or the cooling water after heat exchange is sent to a surface type heat exchanger 5 through a water inlet 25 of a surface cooler to exchange heat with air, and then returns to the water-cooled heat exchanger 14 through a water outlet 26 of the surface cooler to perform circulating refrigeration or heat absorption.
The water-cooled heat exchanger 14 is an evaporator or a condenser, a variable frequency water pump 16 with an integrated pump and valve is arranged on a water supply pipeline of the surface heat exchanger 5, and an electronic expansion valve 27 is arranged on a connecting pipeline of the air-cooled heat exchanger 13 and the water-cooled heat exchanger 14 according to seasons. As shown in fig. 3, a condensate tray 9 is arranged below the surface heat exchanger 5, the condensate tray 9 discharges condensate to the outside through a condensate discharge pipe 10, the blower 6 adopts a high-efficiency centrifugal fan, and a direct-current brushless motor is arranged, so that noise can be effectively reduced.
Wherein, the opening degree of the fresh air inlet 2 and the return air inlet 3 is respectively regulated by a fresh air valve 19 and a return air valve 20 which are arranged inside, and the rotating speed of the blower 6 is controlled by indoor CO 2 Concentration and PM2.5 concentration control, the frequency of the variable frequency compressor 11 is controlled by the temperature difference between freezing/cooling water supply and return water, the opening degree of a proportional control water valve in the variable frequency water pump 16 integrated with the pump valve is influenced by the difference value between the return air temperature and the set return air temperature, when the opening degree of the proportional control water valve is reduced, the resistance of the water pump is increased, the frequency is reduced, otherwise, the resistance is increased.
The fresh air valve 19 and the return air valve 20 are respectively provided with a minimum air inlet so as to ensure that fresh air still exists in a circulating air mode and meet the requirement of minimum indoor fresh air (about 100 m) 3 And/h), the air return quantity in a full fresh air mode can be ensured, and a certain energy-saving effect is obtained. The surface heat exchanger 5 adopts a full-countercurrent 8-row pipe design, the water supply temperature is 9 ℃ and the water return temperature is 16 ℃ under the standard refrigeration working condition. In summer, the air-water can fully exchange heat and dehumidify, and the temperature of the air supply after being processed by the air-water can not be too low.
Under the refrigeration working condition in summer, the pipe orifice a and the pipe orifice b of the four-way reversing valve 12 are communicated in the valve, and the pipe orifices c and d are communicated in the valve, so that the outlet of the variable frequency compressor 11 is communicated with the inlet of the air-cooled heat exchanger 13; under the heating working condition in winter, the pipe orifice a and the pipe orifice d of the four-way reversing valve 12 are communicated in the valve, and the pipe orifice b and the pipe orifice c are communicated in the valve, so that the outlet of the variable frequency compressor 11 is communicated with the water-cooled heat exchanger 14, the outlet of the air-cooled heat exchanger 13 is communicated with the inlet of the gas-liquid separator 15, and the outlet of the gas-liquid separator 15 is connected back to the inlet of the variable frequency compressor 11.
When the air return pipe works, a return air temperature sensor 17 and CO are arranged in the return air pipe 2 A concentration sensor 18 and a PM2.5 concentration sensor 24; the opening degree of the fresh air valve 19 and the return air valve 20 is controlled by CO 2 Concentration setpoint and return air CO 2 Control and regulation of concentration, e.g. CO 2 The concentration setting is 500PPM, if the CO of the return air 2 When the concentration exceeds a set value, the opening of the fresh air valve 19 is increased, and the opening of the return air valve 20 is reduced; if CO is present 2 When the concentration is lower than the set value, the opening of the fresh air valve 19 is reduced, and the opening of the return air valve 20 is increased; the fresh air valve 19 and the return air valve 20 are adjusted in a linkage mode, namely when the opening degree of the fresh air valve 19 is increased, the opening degree of the return air valve 20 is reduced. Wherein the set value of the return air temperature is 22 ℃, and CO is 2 The concentration set point was 500PPM. The rotation speed of the fan 6 provided with the DC brushless motor is controlled by PM2.5 concentration and CO 2 Concentration control when PM2.5 concentration and CO 2 When concentration control is coincident with each other, CO 2 The concentration only controls whether the fresh air valve 19 is opened or not, and the PM2.5 concentration controls the rotating speed of the blower 6. The frequency of the variable frequency water pump 16 integrated with the pump valve matched with the surface heat exchanger 5 and the opening degree of the proportional regulating water valve in the circulating water loop are controlled according to the comparison of the return air temperature and the set value thereof, when the return air temperature is close to the set value thereof, the opening degree of the proportional regulating water valve is reduced, the frequency of the water pump is reduced, when the water valve is fully closed, the basic flow is still provided, and the antifreezing effect can be achieved in winter. The supply and return water temperature of the surface heat exchanger is measured by a supply water temperature sensor 21 and a return water temperature sensor 22, when the frequency of the variable frequency water pump 16 and the opening degree of a water valve are changed, the supply and return water temperature difference of the surface heat exchanger 5 is changed, the frequency of the variable frequency compressor 11 is changed according to the supply and return water temperature difference change of the surface heat exchanger and the change of the outdoor air temperature, and the outdoor fan 23 can correspondingly adjust the frequency and the speed at the moment, so that the frequency is adjusted, and the temperature of the outdoor fan 23 is adjusted accordinglyThe energy-saving effect is achieved. The system has two control modes, one is indoor control, and the other is mobile phone remote control. The indoor control is further classified into a manual mode (air-conditioning mode) and an automatic mode. When the manual mode is adopted, the rotating speed of the blower 6 is manually set, at the moment, the rotating speed of the blower 6 is not changed any more and is not changed by comparing the return air temperature with the set value, the frequency of the variable frequency compressor 11 is changed only according to the comparison between the supply and return water temperature difference and the set value, and the frequency of the outdoor variable frequency fan 23 is correspondingly changed, so that the indoor constant temperature and the constant pressure are maintained; when the automatic mode is adopted, the air-cooled cold (hot) water machine (cold and heat source) is not recommended to be started, is mainly used in transition seasons, and is formed by CO 2 The concentration control fresh air valve 19 is opened or not and the rotating speed of the blower 6 is changed when the concentration of PM2.5 and CO are 2 CO when the control commands for the blower 6 are coincident in concentration 2 The concentration only controls whether the fresh air valve 19 is opened or not, and the PM2.5 concentration of the return air controls the rotating speed of the blower 6.
When the mobile phone is used for remote control, the operation mode, the wind speed regulation, the indoor temperature, humidity and CO can be selected 2 Concentration, PM2.5 concentration history records and instant condition query.
When cooling is carried out in summer, the water temperature of the water-cooling heat exchanger after air treatment is about 16 ℃, so the capillary tube radiation cooling system can be connected in series for use, and the comfortable condition of the indoor environment is further improved.
During winter heat supply, the water supply temperature under the standard heat supply working condition is 40 ℃, and the water return temperature is 33 ℃. Thus, the condensing temperature is not too high, and the energy efficiency of the whole air conditioning system can be improved. The system can also work together with an indoor floor heating system, the floor heating system bears heat load (floor heating water supply temperature is kept at 35-40 ℃), and the fresh air purification processor 1 only bears fresh air load and can be adjusted in a manual or automatic mode to ensure that the temperature of the treated fresh air is not too high and heat discomfort is caused.
In summary, in the frequency conversion household type fresh air purification full air conditioning system, the opening degrees of the fresh air valve and the return air valve are according to the CO of the return air 2 The concentration is adjusted and the rotation speed of the blower is adjusted according to CO 2 PM2.5 concentration regulation, frequency conversion air cooling/heating water machine medium ratioThe opening of the water valve is adjusted according to the return air temperature, the frequency of the variable frequency compressor is adjusted according to the temperature difference between the supply water and the return water of the freezing/cooling water, and the rotating speed of the outdoor fan is further changed. By returning air to CO 2 Comparing the concentration with a set value thereof, and controlling the magnitude of the fresh air quantity and the return air quantity and the rotating speed of the air feeder; the opening degree of the water valve and the rotating speed of the water pump are controlled by comparing the return air temperature with a set value. By using the variable frequency compressor, the operation modes of heating, refrigerating and dehumidifying can be automatically selected according to the ambient temperature, so that the room can quickly reach the required temperature in a short time, and the room can fluctuate with a small temperature difference under the conditions of low rotating speed and low energy consumption, thereby realizing the effects of energy conservation, quickness and comfortable temperature control; and can be used for various technical parameters (indoor temperature and humidity change, PM2.5, CO) of the air conditioning system 2 Concentration) and can carry out regional setting and modification on all parameters, thereby realizing the miniaturization and refinement of the large-scale high-end central air-conditioning system. By adjusting temperature, humidity and CO 2 Concentration and PM2.5 concentration regulation, healthy and comfortable indoor environment all the year around is provided to the maximum extent, the comfort level is improved, and the energy utilization rate is improved. In transition seasons, the system can also filter air without starting the refrigerator according to indoor PM2.5 concentration and CO 2 The concentration adjusts the fresh air proportion and the rotating speed of the air feeder, ensures indoor ventilation in the transition season, and fills the gap that the traditional air conditioner does not adjust and control the indoor environment in the transition season.
Claims (3)
1. A frequency conversion household fresh air purification full air conditioning system is composed of a fresh air purification processor (1) and a frequency conversion air cooling/heating water machine, and is characterized in that the fresh air purification processor (1) comprises a pipeline with a fresh air inlet (2) and a return air inlet (3), fresh air sent by the fresh air inlet (2) and return air sent by the return air inlet (3) are mixed in a mixing section of the pipeline, filtered by a coarse filter (4), enter a surface heat exchanger (5) to exchange heat with chilled water or cooling water for dehumidification, air treated by the surface heat exchanger (5) enters a high-efficiency filter (7) for secondary filtration under the drive of a blower (6), and then is sent into a room through an air supply outlet (8);
the variable-frequency air-cooled cold/hot water machine comprises a variable-frequency compressor (11), wherein the variable-frequency compressor (11) is connected with a pipe orifice a of a four-way reversing valve (12), a pipe orifice b of the four-way reversing valve (12) is connected with an air-cooled heat exchanger (13), the air-cooled heat exchanger (13) is connected with a water-cooled heat exchanger (14), a refrigerant exchanges heat with chilled water or cooling water in the water-cooled heat exchanger (14) and then is connected with a pipe orifice d of the four-way reversing valve (12), a pipe orifice c of the four-way reversing valve (12) is connected with the variable-frequency compressor (11) in a return mode through a gas-liquid separator (15), and the chilled water or cooling water after heat exchange is sent to a surface heat exchanger (5) to exchange heat with air and then returns to the water-cooled heat exchanger (14) to perform circulating refrigeration or heat absorption;
under the working condition of summer, a pipe orifice a and a pipe orifice b of the four-way reversing valve (12) are communicated in the valve, and a pipe orifice c and a pipe orifice d are communicated in the valve, so that an outlet of the variable frequency compressor (11) is communicated with an inlet of the air-cooled heat exchanger (13), and the air-cooled heat exchanger (13) is used as a condenser; under the working condition in winter, a pipe orifice a and a pipe orifice d of the four-way reversing valve (12) are communicated in the valve, a pipe orifice b and a pipe orifice c are communicated in the valve, so that an outlet of the variable frequency compressor (11) is communicated with the water-cooling heat exchanger (14), the air-cooling heat exchanger (13) is used as an evaporator, a refrigerant side outlet of the air-cooling heat exchanger is communicated with an inlet of the gas-liquid separator (15), and an outlet of the gas-liquid separator (15) is connected back to the inlet of the variable frequency compressor (11);
the water-cooled heat exchanger (14) is an evaporator or a condenser, a variable frequency water pump (16) with an integrated pump valve is arranged on a water supply pipeline of the surface-type heat exchanger (5), an electronic expansion valve (27) is arranged on a connecting pipeline of the air-cooled heat exchanger (13) and the water-cooled heat exchanger (14), the air supply outlet (8) is arranged at the high position indoors, and an ABS or wood air outlet is selected to avoid the air outlet from dewing; the air return opening (3) is arranged on the side wall at the height of 50-70 cm from the ground, so that personnel are ensured to be in a backflow area;
the surface type heat exchanger (5) is designed by adopting a full-countercurrent 8-row pipe, the water supply temperature is 9 ℃ under the standard refrigeration working condition, and the water return temperature is 16 ℃; a water condensation disc (9) is arranged below the surface type heat exchanger (5), the water condensation disc (9) discharges condensed water to the outside through a water condensation discharge pipe (10), the air feeder (6) adopts a high-efficiency centrifugal fan, and a direct current brushless motor is configured;
the supply and return water temperatures of the surface heat exchanger (5) are measured by a supply water temperature sensor (21) and a return water temperature sensor (22), when the frequency of a variable frequency water pump (16) integrated with a pump valve matched with the surface heat exchanger (5) and the opening degree of a water valve are changed, the supply and return water temperature difference of the surface heat exchanger (5) is changed, the frequency of a variable frequency compressor (11) is changed according to the temperature difference change and the outdoor air temperature change, and at the moment, the outdoor fan (23) is correspondingly subjected to frequency modulation and speed regulation;
a return air temperature sensor (17) and CO are arranged at the return air inlet (3) 2 A concentration sensor (18) and a PM2.5 concentration sensor (24); the opening degree of the fresh air valve (19) and the return air valve (20) is controlled by CO 2 Concentration setpoint and return air CO 2 The concentration is compared to control and regulate if the air returns CO 2 When the concentration exceeds a set value, the opening of the fresh air valve (19) is increased, and the opening of the return air valve (20) is reduced; if returning CO 2 When the concentration is lower than a set value, the opening of the fresh air valve (19) is reduced, and the opening of the return air valve (20) is increased; the fresh air valve (19) and the return air valve (20) are adjusted in a linkage mode, namely when the opening of the fresh air valve (19) is increased, the opening of the return air valve (20) is reduced, and when the opening of the fresh air valve (19) is reduced, the opening of the return air valve (20) is increased; the rotation speed of the blower (6) is controlled by PM2.5 concentration and CO 2 Concentration control when PM2.5 concentration and CO 2 When the concentration control conflicts with each other, CO 2 The concentration only controls whether a fresh air valve (19) is opened or not, and the PM2.5 concentration controls the rotating speed of a blower (6); the frequency of a variable frequency water pump (16) integrated with a pump valve matched with the surface heat exchanger (5) and the opening of a proportional regulating water valve in a circulating water loop are controlled according to the comparison of the return air temperature and the set value thereof, and when the water valve is completely closed, the basic flow is still provided, so that the antifreezing effect is achieved in winter;
in summer, when cooling is performed, the water temperature of the water-cooled heat exchanger (14) after air treatment is 16 ℃, and the system is connected with a capillary radiation cooling system in series for use;
in winter, the water supply temperature under the standard heat supply working condition is 40 ℃, and the water return temperature is 33 ℃; the system and the indoor floor heating system work jointly, the floor heating system bears heat load, and the fresh air purification processor (1) only bears fresh air load.
2. The frequency-conversion household fresh air purification full air-conditioning system according to claim 1, wherein the opening degrees of the fresh air inlet (2) and the return air inlet (3) are respectively adjusted by a fresh air valve (19) and a return air valve (20) arranged inside, and the fresh air valve (19) and the return air valve (20) are respectively provided with a minimum air inlet so as to ensure that fresh air still exists in a circulating air mode, meet the requirement of indoor minimum fresh air, and ensure that return air still exists in a fresh air mode at the same time, thereby obtaining an energy-saving effect.
3. The variable-frequency household fresh air purifying full air conditioning system according to claim 1, wherein the system is provided with two control modes, one is indoor control, the other is mobile phone remote control, and the indoor control is divided into a manual mode and an automatic mode;
when a manual mode, namely an air conditioning mode, is adopted, the rotating speed of the air feeder (6) is manually set, the rotating speed of the air feeder (6) is constant at the moment, the rotating speed is not changed by comparing the return air temperature with the set value of the return air temperature, the frequency of the variable frequency compressor (11) is changed only according to the comparison between the temperature difference between the supply water and the return water and the set value of the return water temperature, and the frequency of the outdoor variable frequency fan (23) is correspondingly changed, so that the indoor constant temperature and the indoor constant pressure are kept;
in automatic mode, for transitional seasons, according to CO 2 The concentration control fresh air valve (19) is opened or not and the rotating speed of the blower (6) is changed when the concentration of PM2.5 and CO are 2 CO when the control command of the concentration to the blower (6) conflicts 2 The concentration only controls whether a fresh air valve (19) is opened or not, and the PM2.5 concentration of return air controls the rotating speed of a blower (6);
when the mobile phone is used for remote control, the operation mode, the wind speed regulation, the indoor temperature, the indoor humidity and the indoor CO can be selected 2 Concentration, PM2.5 concentration history records and instant condition query.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710582564.4A CN107218665B (en) | 2017-07-17 | 2017-07-17 | Frequency conversion household type fresh air purification full air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710582564.4A CN107218665B (en) | 2017-07-17 | 2017-07-17 | Frequency conversion household type fresh air purification full air conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107218665A CN107218665A (en) | 2017-09-29 |
| CN107218665B true CN107218665B (en) | 2023-01-17 |
Family
ID=59952796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710582564.4A Active CN107218665B (en) | 2017-07-17 | 2017-07-17 | Frequency conversion household type fresh air purification full air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107218665B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662683A (en) * | 2018-05-02 | 2018-10-16 | 广东芬尼克兹节能设备有限公司 | A kind of dehumidifier air-valve control method and dehumidifier |
| CN109253512A (en) * | 2018-08-24 | 2019-01-22 | 深圳市诺科科技有限公司 | A kind of base station special air conditioner control method |
| CN109442709A (en) * | 2018-12-17 | 2019-03-08 | 广东志高暖通设备股份有限公司 | A kind of indoor environment adjusts Intergration system and its working method |
| CN112432268A (en) * | 2020-11-18 | 2021-03-02 | 迪莫环境科技(武汉)有限公司 | Multifunctional water air conditioning system with multiple modes and control method thereof |
| CN113091132A (en) * | 2021-03-15 | 2021-07-09 | 珠海格力电器股份有限公司 | Double-air-outlet fresh air conditioner indoor unit, fresh air conditioner and control method of fresh air conditioner |
| CN114322268B (en) * | 2022-01-04 | 2023-05-16 | 广东美的制冷设备有限公司 | Control method, controller, device and storage medium for air conditioning device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435002A (en) * | 2011-09-22 | 2012-05-02 | 厦门同力节能科技有限公司 | Improved device for efficient energy-saving household central air-conditioning |
| CN202403347U (en) * | 2011-12-19 | 2012-08-29 | 东南大学 | Air treatment device |
| CN204786869U (en) * | 2015-07-14 | 2015-11-18 | 李岩娟 | Clean wind oxygen suppliment intelligence all -in -one |
| CN204987329U (en) * | 2015-08-27 | 2016-01-20 | 第一摩码人居环境科技（北京）有限公司 | A warm and humid independent control air conditioning unit of family formula for radiation air -conditioning system |
| CN106678992A (en) * | 2017-03-08 | 2017-05-17 | 孙金鹏 | Intelligent fresh and return air volume adjusting type air purifier |
| JP2017083145A (en) * | 2015-10-30 | 2017-05-18 | ダイキン工業株式会社 | Air conditioner |
| CN207146539U (en) * | 2017-07-17 | 2018-03-27 | 西安建筑科技大学 | A kind of full air-conditioning system of frequency conversion family formula fresh air purifying |
-
2017
- 2017-07-17 CN CN201710582564.4A patent/CN107218665B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435002A (en) * | 2011-09-22 | 2012-05-02 | 厦门同力节能科技有限公司 | Improved device for efficient energy-saving household central air-conditioning |
| CN202403347U (en) * | 2011-12-19 | 2012-08-29 | 东南大学 | Air treatment device |
| CN204786869U (en) * | 2015-07-14 | 2015-11-18 | 李岩娟 | Clean wind oxygen suppliment intelligence all -in -one |
| CN204987329U (en) * | 2015-08-27 | 2016-01-20 | 第一摩码人居环境科技（北京）有限公司 | A warm and humid independent control air conditioning unit of family formula for radiation air -conditioning system |
| JP2017083145A (en) * | 2015-10-30 | 2017-05-18 | ダイキン工業株式会社 | Air conditioner |
| CN106678992A (en) * | 2017-03-08 | 2017-05-17 | 孙金鹏 | Intelligent fresh and return air volume adjusting type air purifier |
| CN207146539U (en) * | 2017-07-17 | 2018-03-27 | 西安建筑科技大学 | A kind of full air-conditioning system of frequency conversion family formula fresh air purifying |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107218665A (en) | 2017-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107228428B (en) | Household fresh air purification full air conditioning system | |
| CN107218665B (en) | Frequency conversion household type fresh air purification full air conditioning system | |
| CN106678991B (en) | Fresh air handling unit regulation and control system suitable for radiation air conditioner and control method thereof | |
| CN107655108B (en) | Air conditioner and control method thereof | |
| CN211903208U (en) | Air treatment equipment | |
| CN111442448A (en) | Combined air conditioning unit for independently cooling and dehumidifying fresh air | |
| CN107246672B (en) | Household fresh air purification full air conditioning system suitable for cold areas | |
| CN108286755A (en) | A kind of air-treatment unit of included low-temperature receiver | |
| CN204853680U (en) | Air conditioner with constant temperature and humidity | |
| CN207146539U (en) | A kind of full air-conditioning system of frequency conversion family formula fresh air purifying | |
| CN112539488A (en) | Capillary tube radiation double-cold-source total-heat fresh air dehumidification air conditioning all-in-one machine set | |
| CN209763409U (en) | Fresh air fan capable of adjusting temperature in winter and summer | |
| CN209415686U (en) | A kind of fresh air conditioner system suitable for passive type pole low energy-consumption house | |
| CN110715375A (en) | Exhaust air heat recovery type fresh air dehumidifying unit and working method thereof | |
| CN203785141U (en) | Dual temperature radiation heat pump room air conditioner capable of disposing fresh air | |
| CN216431958U (en) | Bypass oxygenation and isothermal difference refrigeration fresh air dehumidifier | |
| CN112146174A (en) | Integrated kitchen air conditioner | |
| CN212511630U (en) | Combined air conditioning unit for independently cooling and dehumidifying fresh air | |
| CN214148201U (en) | Capillary tube radiation double-cold-source total-heat fresh air dehumidification air conditioning all-in-one machine set | |
| CN211060255U (en) | Household air conditioner | |
| CN207146721U (en) | A kind of full air-conditioning system of family formula fresh air purifying suitable for cold district | |
| CN208090854U (en) | A kind of air-treatment unit of included low-temperature receiver | |
| CN111442449A (en) | Double-fan combined air conditioning unit with independent cold source | |
| CN111727888A (en) | Indoor environment control unit for cultivation and planting | |
| CN110594874A (en) | Household air conditioner |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |