CN107143945A - A kind of joint control temperature and CO2The new blower fan of multiple duct constant humidity and its method of work - Google Patents

Abstract

The invention discloses a multi-channel constant-humidity fresh air machine with joint control of temperature and _CO2 and its working method. The fan is equipped with a double-layer air duct, a full heat exchanger, an air treatment block, an exhaust air treatment block and a fan; the invention operates throughout the year based on outdoor gas phase conditions and indoor air data measured by temperature sensors and _CO2 concentration sensors. Within a short period of time, it includes five working modes: all-new air mode in winter, all-new air mode in summer, internal circulation mode of return air in summer, natural ventilation mode and standby mode; In the summer fresh air mode, the fresh air sent into the room and the return air are fully heat-exchanged in the upper air duct. In other modes, since heat recovery is not required, the total heat exchanger is bypassed through the lower air duct to reduce system resistance and fan efficiency. energy consumption.

Description

A multi-channel constant-humidity fresh air fan with joint control of temperature and CO2 and its working method

technical field

The present invention relates to the field of indoor air purification equipment and technology, in particular to a device suitable for villas, apartments and other family residences, offices, classrooms and basements where there is no centralized air treatment system, which can realize humidification, dehumidification, purification, heat recovery, Constant humidity fresh air fan with multiple functions such as fresh air.

Background technique

In the middle and lower reaches of the Yangtze River in my country, from mid-June to early July each year is the rainy season, which lasts for nearly a month. During this period, the temperature is not high, generally at 20-28°C, but the relative humidity is very high, up to 80-95%. In the rainy season, people will not only feel stuffy, but also easily induce diseases and mildew of house items, which will not only affect the indoor air quality and comfort, but also cause harm to human health. With the improvement of living standards, people's pursuit of quality of life is increasing. At present, many villas, apartments and other family homes have begun to install fresh air dehumidifiers.

Ordinary household air conditioners generally use mechanical dew point cooling and dehumidification for fresh air. One of the main disadvantages of this fresh air treatment method is that it will cause energy consumption. Since the processing needs of sensible heat and latent heat (humidity) must be met at the same time, If the required cold source temperature is very low, the fresh air temperature after dehumidification will be too low to meet the indoor air supply temperature requirements; and if the general electric heating reheat treatment is used, it will generate large high-grade energy consumption; in addition, Generally, household air conditioners do not have a fresh air system and cannot guarantee the indoor positive pressure requirements. This causes outdoor air to infiltrate into the room, which not only affects the indoor air quality, but also increases the indoor heat and humidity load, thereby increasing the energy consumption of the air conditioner.

Existing fresh air fans generally only exchange energy between indoor exhaust air and outdoor fresh air, without dehumidifying fresh air, and have a single operating mode, which cannot meet indoor constant humidity requirements.

In response to the above problems, fresh air dehumidifiers using full heat exchange have been widely used in the market. The fresh air and return air are fully heat-exchanged, and the heat exchange efficiency is high. After the indoor return air energy is used to reduce the sensible heat and latent heat load of the fresh air, cooling and dehumidification can be performed, which can reduce the water supply temperature requirements of the surface cooler.

Although fresh air dehumidifiers with full heat exchange have been used in a certain range, there are still some problems in this type of unit that need further improvement. One of the more important problems is that the resistance of the total heat exchanger itself is relatively large. In the working mode of the unit running throughout the year, such as transitional seasons, the outdoor temperature is generally lower than the indoor temperature, and heat recovery should not be performed. Therefore, if full heat exchange is not required or the heat exchange effect is not obvious, unnecessary fan energy consumption will be greatly increased if it is still passed through the full heat exchanger. In addition, this type of unit usually simply puts the evaporator and condenser in the same air duct, so that the temperature of the treated air supply is higher than the indoor temperature, although dehumidification will increase the additional indoor air conditioning load. Therefore, design a fresh air fan that can meet the needs of constant humidity, purification, and comfort throughout the year, and fully save unnecessary dehumidification energy consumption, fan energy consumption, and indoor air conditioning energy consumption through mode switching, and maximize energy-saving operation. It has obvious application value.

In addition, in order to meet the diversified needs of building functions, enable the unit to adapt to more occasions, facilitate the disassembly, maintenance and replacement of each component module, and improve the flexibility and service life of the unit, the unit is modularized to achieve humidification , dehumidification, purification, heat recovery, fresh air and other functions are also important directions for the development of existing fresh air treatment equipment.

Contents of the invention

In view of the above existing problems, the purpose of the present invention is to provide a multi-channel constant humidity fresh air fan with joint temperature control and _CO2 that cleverly uses double-layer air ducts for mode switching, supplemented by full heat recovery and heat pipe reheating and its working methods.

In order to achieve the above object, the technical scheme adopted by the present invention is as follows: a multi-channel constant humidity fresh air fan with joint control temperature and _CO , said fresh air fan is provided with a fresh air port, a return air port, an air supply port and an air exhaust port , the fresh fan is provided with a double-layer air duct, a total heat exchanger, an air treatment block, an exhaust air treatment block and a fan.

The fan of the present invention includes a blower fan and an exhaust fan, and the double-layer air duct is composed of an upper air duct and a lower air duct that are parallel to and separated from each other; the side of the double-layer air duct of the present invention is provided with an electric box, the electric control box is placed in the empty space behind the primary filter.

The return air outlet of the present invention is sequentially connected to the air processing block, the air supply fan and the air supply port through the upper air duct or the lower air duct, and the new air outlet is sequentially connected to the exhaust processing block, the exhaust fan and the air duct through the upper air duct or the lower air duct. The air outlet, the full heat exchanger is fixedly installed in the upper air duct, and the lower air duct is provided with a partition to separate the lower air duct into parallel left and right air ducts, and the left air duct is connected to the air return port and the air processing block , the right air duct connects the fresh air outlet and the exhaust air treatment block.

Electric air valves I, II and III are arranged in the lower air duct of the present invention, the electric air valve I is arranged between the air return port and the lower air duct, the electric air valve II is arranged on the partition, and the electric air valve III is arranged on the lower floor Between the air duct and the exhaust treatment block.

The air treatment block of the present invention includes a medium-efficiency filter, an electrostatic precipitator module, a heat exchanger I, a humidification module, and a condensation section of a heat pipe heat exchanger; the exhaust air treatment block includes a compressor, a heat exchanger II and a heat pipe exchanger Evaporation section of the heater.

A primary-effect filter is provided between the air return port and the double-layer air duct of the present invention, and a primary-effect filter is provided between the fresh air port and the double-layer air duct; the primary-effect filter directly passes into the interior of the device through primary-effect filter To prevent the particles in the air from entering the device directly, affecting the normal operation of subsequent equipment inside the device, and the primary filter is a detachable module, which is convenient for replacement and subsequent cleaning.

The air treatment block of the present invention is formed by sequentially connecting a medium-efficiency filter, an electrostatic precipitator module, a heat exchanger I, a humidification module, and the condensation section of a heat pipe heat exchanger, and is finally connected to the air blower at the air supply port; the described The exhaust air treatment block is composed of compressor, heat exchanger II and the evaporation section of the heat pipe heat exchanger connected in sequence, and finally connected to the exhaust fan at the air exhaust port.

The fresh air outlet of the present invention is provided with a temperature sensor, and the return air outlet is provided with a temperature sensor and a _CO2 concentration sensor.

The heat pipe heat exchanger of the present invention is a gravity heat pipe heat exchanger in which a single row of tubes is vertically arranged, and the total heat exchanger is a plate-fin total heat exchanger; the gravity heat pipe heat exchanger of the present invention is used in the new The inside of the fan is installed horizontally, and its condensing section is inclined to the evaporating section to ensure that the gravity heat pipe heat exchanger works in one direction. The air supply reaches the appropriate temperature.

The primary effect filter, medium effect filter, electrostatic precipitator module, heat exchanger I, heat exchanger II, compressor, humidification module, and heat pipe heat exchanger of the present invention are all modular drawer structures. The high-efficiency filter, medium-efficiency filter, electrostatic precipitator module and humidification module are all detachable modules; through this design, not only can it be easily disassembled, maintained and replaced, but also can increase or decrease functional sections according to different user needs.

The working method of the multi-channel constant-humidity fresh air machine with joint control temperature and _CO of the present invention, the described working method is based on the outdoor gas phase conditions and the indoor air data measured by the temperature sensor and the _CO2 concentration sensor. During the running time, there are five working modes: fresh air mode in winter, fresh air mode in summer, internal circulation mode of return air in summer, natural ventilation mode and standby mode.

The working method of the all-new air mode in summer according to the present invention is as follows: in summer, when the _CO2 concentration in the detection room rises to 1200ppm, the heat pump turns on the cooling mode, the electric damper I and the electric damper II are closed, and the electric damper III is opened; In the air duct, the fresh air and the return air enter the fresh air and the return air respectively, and the fresh air filtered by the primary filter and fully heat-exchanged cross-flows into the air processing block, passes through the medium-effect filter, electrostatically removes dust, and enters the evaporator to be cooled and dehumidified , and then through the condensation section of the gravity heat pipe heat exchanger, the temperature rises to reach a suitable air supply state, and it is sent into the room through the air supply fan and the air supply port; The heat is cross-exchanged in the air channel, then processed by the compressor, and finally absorbed by the evaporating section of the gravity heat pipe heat exchanger, and then sent out to the outside through the exhaust fan and the exhaust port.

The working method of the summer return air internal circulation mode of the present invention is as follows: in summer, when the _CO2 concentration in the detection room drops to 600ppm, the heat pump turns on the cooling mode, the electric damper I and the electric damper III are turned on, and the electric damper II is closed , the upper air duct is closed, and the lower air duct is fed with the return air from the return air outlet. After being processed by the left air duct and filtered, it enters the evaporator to be cooled and dehumidified, and then absorbs part of the condensation heat through the condensation section of the gravity heat pipe heat exchanger. , the temperature rises to reach a suitable air supply state, and it is sent into the room through the air supply fan and the air supply port; at the same time, the fresh air is introduced from the fresh air port, and after passing through the primary filter and the right air duct, the condensation heat is processed by the compressor. Part of the cold energy is absorbed by the evaporation section of the gravity heat pipe, and sent out to the outside through the exhaust fan and the exhaust port.

The working method of the all-new wind mode in winter according to the present invention is as follows: in winter, when the _CO2 concentration in the detection room rises to 1200ppm, the heat pump turns on the heating mode, the electric damper I and the electric damper II are closed, and the electric damper III is opened. In the upper air duct, the fresh air and the return air enter from the fresh air outlet and the return air outlet respectively, and the fresh air filtered by the primary filter and subjected to total heat exchange flows into the air treatment block in a cross flow, passes through the intermediate effect filter and electrostatic dust removal, and is discharged after entering the condenser. Heat up, then humidify through the humidification module to achieve a suitable air supply state, and send it into the room through the air supply fan and the air supply port; at the same time, in the lower air duct, the fresh air introduced from the fresh air port performs cross heat exchange between the partition plate and the upper air duct , through the compressor and evaporator, and finally sent out to the outside through the exhaust fan and the exhaust port.

The working method of the standby mode of the present invention is as follows: in winter, when the _CO2 concentration in the detection room drops to 600ppm, the fresh air outlet is closed, and other devices are used for heating in the room, and the device temporarily stops working and remains on standby.

The working method of the natural ventilation mode described in the present invention is as follows: in the transitional season, the heat pump is turned off, the electric damper I and the electric damper III are closed, the electric damper II is opened, the upper air duct is closed, and in the lower air duct, the new air outlet The fresh air is introduced into the room through the primary effect filter, medium effect filter and electrostatic precipitator, and then directly sent into the room by the air supply fan and the air supply port.

The device of the present invention is provided with a condensed water atomizing spray system, and the condensed water atomized spray system is composed of a condensed water pan, a water pipe, a liquid level sensor, a miniature water pump and an atomized nozzle. The condensed water pan is arranged under the heat exchanger I, and the atomizing nozzles are evenly distributed on the top of the heat exchanger II, and the condensed water pan is connected to the atomizing nozzles through water pipes and micro-pumps.

The working method of the condensed water atomization spraying system of the present invention is as follows: in the summer fresh air mode or the summer return air internal circulation mode, the condensed water after summer dehumidification on the heat exchanger I is collected through the condensed water pan, and when condensed After the liquid level of the water pan is higher than the set value, the micro water pump is started, and the condensed water is turned into fine water droplets through the atomizing nozzle, which is sprayed on the heat exchanger II, and the condensation heat is taken away by evaporation.

Different from conventional fresh air dehumidifiers or constant humidity fresh air fans, this invention designs upper and lower double-layer air ducts to realize energy-saving operation throughout the year, flexibly switch fresh air mode and return air internal circulation mode, and fully realize the return air in the building. energy recovery and reduce system energy consumption. And it is guaranteed that only in the winter and summer fresh air mode, the fresh air sent into the room and the return air are fully heat exchanged in the upper air duct. In other modes, since heat recovery is not required, the total heat exchanger is bypassed through the lower air duct. Reduce system resistance and reduce fan energy consumption.

In the present invention, a gravity-type heat pipe with compact structure, convenient installation and maintenance, long service life, high heat exchange efficiency, and low resistance is adopted, and it is set after cooling and dehumidification to recover part of the condensation heat, and the air is heated to a suitable temperature, which can be used It saves low-grade energy, saves power consumption compared with electric heating, and avoids the problem of placing the evaporator and condenser in the same air duct in conventional dehumidification fresh air fans, which will cause the temperature of the supply air to be higher than the indoor temperature and increase the indoor cooling load. situation, saving indoor air-conditioning energy consumption. Therefore, the device achieves the purpose of energy saving under the premise of ensuring the comfort of air supply.

The advantage of the present invention is that: the present invention provides a multi-channel comfortable constant-humidity fresh air blower and fresh air treatment method with joint control of temperature and _CO2 concentration. The reheating of the heat pipe solves the problems of poor dehumidification effect, high energy consumption in operation, high air supply temperature increases additional energy consumption of indoor air conditioning, and single operation mode in the prior art, which are specifically reflected in the following points:

1) From the perspective of dehumidification effect: the present invention is a multi-channel comfortable constant humidity fresh air fan with joint control of temperature and _CO2 concentration. Compared with only reducing the humidity content of fresh air to close to the indoor air humidity without The traditional fresh air dehumidification device that really solves the problem of indoor dehumidification. This design constant humidity fresh air fan handles the humidity content of the fresh air to be lower than the indoor air humidity, so that the fresh air can fully bear the indoor humidity load.

2) From the perspective of energy consumption in operation: the invention cleverly designs the upper and lower double-layer air ducts, and realizes the switching of different working modes through the switching of the air ducts, meeting the needs of energy-saving operation throughout the year. This design not only realizes the full heat recovery of the fresh air and return air sent into the room under the winter and summer fresh air modes that require heat recovery, saving the energy consumption of the compressor required for dehumidification, but also realizes other modes that do not require heat recovery. The lower bypass full heat exchanger reduces air flow resistance and saves fan energy consumption. At the same time, by detecting changes in indoor _CO2 concentration in winter and summer, it switches to the return air internal circulation mode in a timely manner, making full use of the return air to reduce the energy consumption of the compressor required for dehumidification. In addition, in the fresh air mode in winter and summer, the heat exchange between the return air and the heat exchanger on the exhaust side is fully utilized to improve the operating conditions of the heat exchanger on the exhaust side.

3) Utilizing the advantages of gravity heat pipes such as compact structure, convenient installation and maintenance, long life, high heat exchange efficiency, and small resistance, gravity heat pipes are used instead of electric heating, and the comfort of air supply is ensured by recovering condensation heat, and low-grade energy is used , to reduce power consumption. Compared with the dehumidification fresh air blower on the market where the evaporator and condenser are placed in the same air duct, resulting in higher air temperature than the indoor temperature and increasing the energy consumption of indoor air conditioning, this invention uses heat pipes to absorb part of the condensation heat to heat the air supply to a suitable temperature , but still lower than the indoor temperature, thereby saving indoor air conditioning energy consumption.

4) Condensed water is atomized and sprayed to cool the condenser, and the evaporation of condensed water is used to take away part of the condensation heat, improve the operating condition of the condenser, reduce the fresh air volume required for cooling the condenser, reduce the energy consumption of the fan and recover condensation Water embodies the concept of energy saving and environmental protection.

Description of drawings

Fig. 1 is the device structure schematic diagram of the present invention;

Fig. 2 is the perspective view of the upper and lower double-layer air ducts of the device of the present invention;

Fig. 3 is a schematic diagram of the condensed water atomizing spray system of the present invention.

Among them, 1 fresh air outlet; 2 primary effect filter; 3 full heat exchanger; 4 medium effect filter; 5 electrostatic dust removal module; 6 heat exchanger Ⅰ; 7 humidification module; 8 heat pipe heat exchanger; 10 Air supply port; 11 Air return port; 12 Compressor; 13 Condensed water atomization spray system; 14 Heat exchanger II; 15 Exhaust fan; 16 Air exhaust port; 17 Electric control box; Water tray; 20 electric air valve I; 21 electric air valve II; 22 electric air valve III; 23 liquid level sensor; 24 micro water pump; 25 atomizing nozzle.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Embodiment 1: a kind of joint control temperature and CO as shown in Figure ₂ Multi-channel constant humidity fresh air blower, described fresh air blower is provided with fresh air port 1, air return port 11, air supply port 10 and exhaust The tuyere 16 is provided with a double-layer air duct, a total heat exchanger 2, an air treatment block, an exhaust air treatment block and a blower fan in the described fresh air blower.

The fan of the present invention includes a blower fan 9 and an exhaust fan 15, and the double-layer air duct is composed of an upper air duct and a lower air duct that are parallel to each other and separated; the side of the double-layer air duct of the present invention is provided with Electric control box 17, this electric control box 17 is placed in the vacant space on primary effect filter 2 rear side.

The air return port 11 of the present invention is sequentially connected to the air processing block, the air supply fan 9 and the air supply port 10 through the upper air duct or the lower air duct, and the new air outlet 1 is sequentially connected to the exhaust processing block, air outlet 1 through the upper air duct or the lower air duct. Exhaust fan 15 and air outlet 16, described total heat exchanger 3 is fixedly installed in the upper air duct, and the lower air duct is provided with a partition to separate the lower air duct into parallel left and right air ducts, and the left air duct The air return port 11 is connected with the air processing block, and the right air duct is connected with the fresh air port 1 and the exhaust air processing block.

Electric air valves I (20), II (21) and III (22) are arranged in the lower air duct of the present invention, and the electric air valve I (20) is arranged between the air return port 11 and the lower air duct. The valve II (21) is arranged on the partition, and the electric air valve III (22) is arranged between the lower air duct and the exhaust processing block.

The air treatment block of the present invention includes a medium-efficiency filter 4, an electrostatic precipitator module 5, a heat exchanger I (6), a humidification module 7, and a condensation section of a heat pipe heat exchanger 8; Machine 12, heat exchanger II (14) and the evaporation section of heat pipe heat exchanger 8.

Embodiment 2: As shown in Figures 1 and 2, an initial effect filter 2 is provided between the return air outlet 11 and the double-layer air duct of the present invention, and an initial effect filter 2 is provided between the new air outlet 1 and the double-layer air duct. Filter 2: The primary filter 2 directly filters the air passing into the device to prevent particles in the air from directly entering the device and affecting the normal operation of subsequent equipment inside the device, and the primary filter 2 is a detachable module , to facilitate replacement and subsequent cleaning.

Embodiment 3: as shown in Figures 1 and 2, the air treatment block of the present invention consists of the condensation section of the medium-efficiency filter 4, electrostatic precipitator module 5, heat exchanger I (6), humidification module 7 and heat pipe heat exchanger 8 connected sequentially, and finally connected to the air blower 9 at the air supply port 10; the exhaust air treatment block is formed by sequentially connecting the compressor 12, the heat exchanger II (14) and the evaporation section of the heat pipe heat exchanger 8 , and finally connected to the exhaust fan 15 of the air outlet 16.

Embodiment 4: As shown in Figures 1 and 2, the fresh air outlet 1 of the present invention is provided with a temperature sensor, and the return air outlet 11 is provided with a temperature sensor and a CO ₂ concentration sensor.

Embodiment 5: As shown in Figures 1 and 2, the heat pipe heat exchanger 8 of the present invention is a gravity heat pipe heat exchanger with a single row of tubes arranged vertically, and the total heat exchanger 2 is a plate-fin total heat exchanger. Exchanger; the gravity heat pipe heat exchanger 8 of the present invention is installed horizontally, and the condensation section is inclined to the evaporation section to ensure the one-way work of the gravity heat pipe heat exchanger 8, which is only used for heating and supplying air to a suitable temperature during the cooling season. temperature.

The heat exchanger I (6), heat exchanger II (14) and compressor 12 of the present invention are all placed in the container 18 of the heat pump air conditioner.

Embodiment 6: As shown in Figures 1 and 2, the primary effect filter 2 of the present invention, the medium effect filter 4, the electrostatic precipitator module 5, the heat exchanger I (6), the heat exchanger II (14), The compressor 12, the humidification module 7, and the heat pipe heat exchanger 8 are all modular drawer structures, and the primary filter 2, intermediate filter 4, electrostatic precipitator module 5 and humidification module 7 are all detachable Module; through this design, not only can it be easily disassembled for maintenance and replacement, but also can increase or decrease functional segments according to different user needs.

Embodiment 7: As shown in Figures 1 and ₂ , the working method of the multi-channel constant humidity fresh air machine with joint control temperature and CO of the present invention, the working method is based on outdoor gas phase conditions and temperature sensors, _CO Concentration sensors The measured indoor air data includes five working modes during the whole year's operation time: fresh air mode in winter, fresh air mode in summer, internal circulation mode of return air in summer, natural ventilation mode and standby mode.

Embodiment 8: As shown in Figures 1 and 2, the working method of the all-new air mode in summer of the present invention is as follows: in summer, when the _CO concentration in the detection room rises to 1200ppm, the heat pump turns on the cooling mode, and the electric damper I (20), The electric air valve II (21) is closed, and the electric air valve III (22) is opened; in the upper air duct, fresh air and return air enter the fresh air port 1 and the return air port 11 respectively, and the fresh air filtered by the primary filter 2 and fully heat-exchanged , cross flow into the air processing block, pass through the medium-efficiency filter 4, electrostatic precipitator 5, enter the evaporator 6 to be cooled and dehumidified, and then pass through the condensation section of the gravity heat pipe heat exchanger 8, the temperature rises to reach a suitable air supply state, It is sent into the room through the air supply fan 9 and the air supply port 10; in the lower air channel, the fresh air enters the fresh air port 1, conducts cross heat exchange between the partition plate and the upper air channel, and then is processed by the compressor 12, and finally heat exchanged by the gravity heat pipe After the evaporating section of device 8 absorbs a part of cold energy, it is sent out to the outside through exhaust fan 15 and air outlet 16.

Embodiment 9: As shown in Figures 1 and 2, the working method of the return air internal circulation mode of the present invention is as follows: in summer, when the _CO concentration in the detection room drops to 600ppm, the heat pump turns on the cooling mode, and the electric air valve I (20 ), the electric air valve III (22) is opened, the electric air valve II (21) is closed, the upper air duct is closed, and in the lower air duct, the return air is introduced from the return air outlet 11, and after being processed by the left air duct and filtered, it enters the evaporation The device 6 is cooled and dehumidified, and then a part of the condensation heat is absorbed by the condensation section of the gravity heat pipe heat exchanger 8, and the temperature rises to reach a suitable air supply state, and it is sent into the room through the air supply fan 9 and the air supply port 10; at the same time, from the new The fresh air is introduced into the tuyere 1, and after passing through the primary filter 2 and the right air duct, the condensation heat is processed by the compressor 12, and part of the cold energy is absorbed by the evaporation section of the gravity heat pipe 8, and then passed through the exhaust fan 15 and the exhaust outlet 16 sent outside.

Embodiment 10: As shown in Figures 1 and 2, the working method of the all-new wind mode in winter of the present invention is as follows: in winter, when the _CO concentration in the detection room rises to 1200ppm, the heat pump turns on the heating mode, and the electric damper I (20) 1. The electric air valve II (21) is closed, the electric air valve III (22) is opened, and in the upper air duct, the fresh air and return air enter from the fresh air port 1 and the return air port 11 respectively, and the air after being filtered by the primary filter 2 and fully heat-exchanged The fresh air enters the air processing block through cross flow, passes through the medium-efficiency filter 4, electrostatic precipitator 5, enters the condenser 6, is heated up, and then humidifies through the humidification module 7 to achieve a suitable air supply state, and passes through the air supply fan 9 and the air supply port 10 At the same time, in the lower air duct, the fresh air introduced from the fresh air outlet 1 performs cross heat exchange on the partition plate and the upper air duct, passes through the compressor 12 and the evaporator 14, and finally passes through the exhaust fan 15 and the exhaust outlet 16 sent outside.

Embodiment 11: As shown in Figures 1 and 2, the working method of the standby mode of the present invention is as follows: in winter, when the _CO concentration in the detection room drops to 600ppm, the fresh air outlet 1 is closed, and other devices are used for heating in the room, and the device is temporarily stopped Work, stay on standby.

Embodiment 12: As shown in Figures 1 and 2, the working method of the natural ventilation mode of the present invention is as follows: in the transition season, the heat pump is closed, the electric damper I (20), the electric damper III (22) are closed, and the electric damper Ⅱ (21) is turned on, the upper air duct is closed, and in the lower air duct, fresh air is introduced from the fresh air outlet 1, and after passing through the primary effect filter 2, the intermediate effect filter 4, and the electrostatic precipitator 5, it is directly blown by the air supply fan 9 and air supply port 10 into the room.

Embodiment 13: As shown in Figures 1, 2 and 3, the device of the present invention is provided with a condensed water atomization spray system 13, and the condensed water atomized spray system 13 consists of a condensed water pan 19, a water pipe, a liquid Position sensor 23, micro water pump 24 and atomizing nozzle 25. The condensed water pan 19 is arranged under the heat exchanger I (6), and the atomizing nozzle 25 is evenly distributed in the heat exchanger II (14 ), the condensed water pan 19 is connected to the atomizing spray nozzle 25 through a water pipe and a miniature water pump 24.

The working method of the condensed water atomizing spray system 13 is as follows: in the summer all-new air mode or the summer return air internal circulation mode, the condensed water after dehumidification in summer on the heat exchanger I (6) is collected through the condensed water pan 19, and when After the liquid level of the condensed water pan 19 is higher than the set value, the micro water pump 24 is started, and the condensed water is turned into fine water droplets through the atomizing nozzle 25, and sprayed on the heat exchanger II (14), and the condensation heat is taken away by evaporation .

Example 14: According to the annual meteorological parameters in Nanjing, taking a family residence as an example, theoretically calculate the energy-saving benefits and economical efficiency of the constant-humidity fresh air machine designed in this design. The operating days in different modes are determined by the annual meteorological parameters combined with the working characteristics of the constant humidity fresh air machine of this design, as shown in Table 1.

Table 1 Operation mode and operation days of the constant humidity fresh air machine in this design

Note: Summer in this table refers to June to September when refrigeration and dehumidification are required, including the rainy season, which is counted as one month.

Compared with the traditional full heat exchange constant humidity fresh air fan, the energy saving analysis of the constant humidity fresh air fan designed in this design is shown in Table 2.

Table 2 The energy-saving analysis of the constant humidity fresh air blower in this design compared with the traditional full heat exchange constant humidity fresh air blower

Calculate the annual operating energy consumption of the designed constant humidity fresh air fan and the traditional constant humidity fresh air fan, as shown in Table 3.

Table 3 Annual energy consumption comparison between the designed constant humidity fresh air machine and the traditional constant humidity fresh air machine

It can be seen from Table 2 and Table 3 that the constant humidity fresh air fan in this design can intelligently open different working modes according to the outdoor weather conditions and indoor _CO2 concentration. 33.5% of the total energy consumption of traditional constant humidity fresh air fans.

It should be noted that the above are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any combination or equivalent transformation made on the basis of the above embodiments belongs to the protection scope of the present invention.

Claims (10)

1. a kind of joint control temperature and CO₂The new blower fan of multiple duct constant humidity, it is characterised in that described new blower fan be provided with fresh wind port, It is provided with return air inlet, air outlet and exhaust outlet, described new blower fan at double-deck air channel, total-heat exchanger, air-treatment block, air draft Manage block and blower fan；

Described blower fan includes breeze fan and exhaust fan, and described double-deck air channel is by upper strata air channel that is mutually parallel and separating Constituted with lower floor air channel；

Described return air inlet is sequentially connected air-treatment block, breeze fan and air outlet through upper strata air channel or lower floor air channel, described Fresh wind port be sequentially connected Air exhaust block, exhaust fan and exhaust outlet through upper strata air channel or lower floor air channel, described full heat is handed over Parallel operation is fixedly mounted in the air channel of upper strata, and lower floor air channel is separated into parallel left and right air channel provided with dividing plate in lower floor air channel, left Air channel connects return air inlet and air-treatment block, right air channel connection fresh wind port and Air exhaust block；

Electric air valve I, II and III is provided with described lower floor air channel, Electric air valve I is arranged on return air inlet between lower floor air channel, Electric air valve II is arranged on dividing plate, and Electric air valve III is arranged between lower floor air channel and Air exhaust block；

Described air-treatment block includes medium effeciency filter, electrostatic precipitation module, heat exchanger I, humidification module and heat exchange of heat pipe Condensation segment；Described Air exhaust block includes the evaporator section of compressor, heat exchanger II and heat exchange of heat pipe.

2. joint control temperature as claimed in claim 1 and CO₂The new blower fan of multiple duct constant humidity, it is characterised in that described return air inlet Roughing efficiency air filter is provided between double-deck air channel, roughing efficiency air filter is provided between described fresh wind port and double-deck air channel.

3. joint control temperature as claimed in claim 1 and CO₂The new blower fan of multiple duct constant humidity, it is characterised in that at described air Reason block be sequentially connected by the condensation segment of medium effeciency filter, electrostatic precipitation module, heat exchanger I, humidification module and heat exchange of heat pipe and Into being finally connected on the breeze fan of air outlet；Described Air exhaust block is by compressor, heat exchanger II and heat exchange of heat pipe Evaporator section be connected in sequence, be finally connected on the exhaust fan of exhaust outlet.

4. joint control temperature as claimed in claim 1 and CO₂The new blower fan of multiple duct constant humidity, it is characterised in that described fresh wind port Interior be provided with temperature sensor, described return air inlet is provided with temperature sensor and CO₂Concentration sensor.

5. joint control temperature as claimed in claim 1 and CO₂The new blower fan of multiple duct constant humidity, it is characterised in that described heat pipe is changed Hot device is the gravity type heat pipe heat exchanger that single row of tubes is arranged vertically, and described total-heat exchanger is plate-fin total-heat exchanger.

6. joint control temperature as claimed in claim 1 and CO₂The new blower fan of multiple duct constant humidity, it is characterised in that it is described first to imitate Filter, medium effeciency filter, electrostatic precipitation module, heat exchanger I, heat exchanger II, compressor, humidification module, heat exchange of heat pipe are Modular drawer-type structure, described roughing efficiency air filter, medium effeciency filter, electrostatic precipitation module and humidification module is removable The module unloaded.

7. joint control temperature and CO in a kind of 1-6 such as claim as described in any one₂The new blower fan of multiple duct constant humidity work side Method, it is characterised in that described method of work is according to outdoor gas phase condition and temperature sensor, CO₂What concentration sensor was measured Room air data, in annual run time, including five kinds of mode of operations：Winter all-fresh air pattern, summer all-fresh air pattern, Summer return air interior circulation pattern, Natural Ventilation Mode and standby mode, in summer, heat exchanger I is made as evaporator, heat exchanger II For condenser, heat exchanger I is as condenser in the winter time, and heat exchanger II is used as evaporator.

8. joint control temperature according to claim 7 and CO₂The new blower fan of multiple duct constant humidity method of work, it is characterised in that

The method of work of described summer all-fresh air pattern is as follows：Summer, as detection interior CO₂When concentration rises to 1200ppm, heat Pump opens refrigeration mode, and Electric air valve I, Electric air valve II are closed, and Electric air valve III is opened；In the air channel of top, fresh wind port and return Fresh air and return air are respectively enterd in air port, is filtered through roughing efficiency air filter, the fresh air of Total heat exchange, the processing of cross flow one air inlet Block, by medium air filtration, electrostatic precipitation, into the cooled dehumidifying of evaporator, then passes through the condensation of gravity type heat pipe heat exchanger Section, temperature rise, reaches suitable ventilation state, is sent into by breeze fan and air outlet indoor；In the air channel of bottom, fresh wind port Middle entrance fresh air, carries out cross-exchange in dividing plate and top air channel, then handles, most exchanged heat afterwards through gravity type heat pipe through compressor The evaporator section of device is absorbed after a part of cold, is sent out by exhaust fan and exhaust outlet outdoor；

The method of work of described summer return air interior circulation pattern is as follows：Summer, as detection interior CO₂When concentration is down to 600ppm, Heat pump opens refrigeration mode, and Electric air valve I, Electric air valve III are opened, and Electric air valve II is closed, and top air channel is closed, bottom wind In road, return air is passed through from return air inlet, behind left air channel and filtration treatment, into the cooled dehumidifying of evaporator, then through weight The condensation segment of power formula heat exchange of heat pipe absorbs a part of condensation heat, and temperature rise reaches suitable ventilation state, passes through wind of blowing Machine and air outlet feeding are indoor；Meanwhile, fresh air is passed through from fresh wind port, after roughing efficiency air filter and right air channel, passes through compression Machine handles condensation heat, and the evaporator section through gravity type heat pipe absorbs part cold, is sent out by exhaust fan and exhaust outlet outdoor；

The method of work of described winter all-fresh air pattern is as follows：Winter, as detection interior CO₂When concentration rises to 1200ppm, heat Pump opens heating mode, and Electric air valve I, Electric air valve II close, and Electric air valve III is opened, in the air channel of upper strata, from fresh wind port and Return air inlet respectively enters fresh air and return air, is filtered through roughing efficiency air filter, the fresh air after Total heat exchange, at cross flow one air inlet Manage block, by medium air filtration, electrostatic precipitation, into condenser after be warmed, then humidified by humidification module, it is suitable to reach Ventilation state, is sent into indoor by breeze fan and air outlet；Meanwhile, in lower floor air channel, the fresh air being passed through from fresh wind port exists Dividing plate carries out cross-exchange with top air channel, and by compressor and evaporator, room is sent out finally by exhaust fan and exhaust outlet Outside；

The method of work of the standby mode is as follows：Winter, as detection interior CO₂When concentration is down to 600ppm, fresh wind port is closed Close, interior uses other device heat supplies, device temporarily ceases work, keeps standby；

The method of work of the Natural Ventilation Mode is as follows：In transition season, heat pump is closed, Electric air valve I, Electric air valve III Close, Electric air valve II is opened, upper strata air channel is closed, and in lower floor air channel, fresh air is passed through from fresh wind port, passes through primarily efficient filter After device, medium effeciency filter, electrostatic precipitation filtration treatment, directly sent into by breeze fan and air outlet indoor.

9. joint control temperature according to claim 7 and CO₂The new blower fan of multiple duct constant humidity method of work, it is characterised in that Condensate atomizing sprinkling system is provided with described device, described condensate atomizing sprinkling system is by condensate drain pan, water pipe, liquid Level sensor, micro pump and atomizer are constituted, and described condensate drain pan is arranged at the lower section of heat exchanger I, described mist Change the top that shower nozzle is evenly distributed on heat exchanger II, described condensate drain pan is connected to atomizer by water pipe, micro pump On；

The method of work of described condensate atomizing sprinkling system is as follows：In summer all-fresh air pattern or summer return air interior circulation mould Under formula, the condensate in heat exchanger I after summer dehumidifying is collected by condensate drain pan, when the liquid level of condensate drain pan is higher than setting value Afterwards, start micro pump, condensate is become the tiny globule by atomizer, be sprayed in heat exchanger II, evaporation is taken away Condensation heat.

10. joint control temperature according to claim 7 and CO₂The new blower fan of multiple duct constant humidity method of work, its feature exists In described gravity type heat pipe heat exchanger is horizontally mounted in new blower fan, and condensation segment is tilted to evaporator section；

The method of work of the gravity type heat pipe heat exchanger is as follows：In summer all-fresh air pattern and summer return air interior circulation pattern Under, by the condensation heat produced in gravity type heat pipe heat exchanger absorption heat-exchange device II, air-supply is reached suitable temperature.