CN101701739A - Air and air energy recovery and ventilation device with defrosting and bypass air supplying functions - Google Patents

Abstract

The invention relates to an air and air energy recovery and ventilation device with defrosting and bypass air supplying functions, which belongs to an air and air energy recovery and ventilation device and aims at solving the problem that load in a cold energy eliminating chamber applying outdoor fresh air can not be utilized by the traditional air and air energy recovery and ventilation device in a transition season. The air and air energy recovery and ventilation device also comprises a bypass air supplying valve, wherein a fifth air passage hole is communicated with a bypass air supplying passage, one end of a baffle plate is arranged on the inner side wall of a casing and the other end is arranged on a heat exchange frame, a second baffle plate is arranged at the fifth air passage hole and is articulated with the heat exchange frame through a second hinge, one end of a second connecting rod is articulated with the second baffle plate and the other end is articulated with a second sliding block which is connected with an output shaft of a second motor in a transmission way, the second motor is fixedly arranged on the bottom end face of the baffle plate, and a power supply controller is connected with the second motor through a lead. The invention is used for recovering indoor heat and cold energy.

Description

Air and air energy recovery ventilation with defrosting and bypass air supply

technical field

The invention relates to an air and air energy recovery ventilation device.

Background technique

Existing air and air energy recovery ventilation device has bypass defrosting function, as publication number is CN101509686A, and the Chinese invention patent application on August 19th, 2009 discloses a kind of " air with bypass defrosting function Ventilation device with air energy recovery", but this device has not been utilized in the transitional season to use the cooling capacity of the outdoor fresh air to eliminate the indoor load.

Contents of the invention

The purpose of this invention is to solve the problem that the existing air and air energy recovery ventilation device has not been utilized in the transition season to use the cooling capacity of the outdoor fresh air to eliminate the indoor load. Wind Functional Air with Air Energy Recovery Ventilator.

The technical solution adopted by the present invention to solve the above technical problems is: the air and air energy recovery ventilation device includes a casing, an exhaust fan, a heat exchanger, a heat exchanger frame, a fresh air fan, a bypass defrosting damper and a power supply The controller, the heat exchanger frame is fixedly connected to the top surface, the left inner wall and the right inner wall of the casing, and the heat exchanger frame divides the casing into an exhaust chamber, a fresh air chamber, and a bypass air supply channel and a bypass defrosting air duct, the heat exchanger is installed in the heat exchanger frame, and one side wall of the heat exchanger frame is provided with an exhaust port and a first air channel port, and the heat exchanger The other side wall of the device frame is provided with a fresh air opening and a second air duct opening, the exhaust fan is installed in the exhaust chamber, the fresh air fan is installed in the fresh air chamber, and the exhaust fan is located on the casing. An exhaust outlet is provided at the airflow outlet of the fresh air fan, a fresh air outlet is provided on the casing at the airflow outlet of the fresh air fan, a fresh air inlet is provided on the casing, and the fresh air inlet and exhaust outlet are set on the same side, The shell is provided with an exhaust air inlet and the exhaust air inlet is set on the same side as the fresh air outlet, one end of the bypass air supply duct communicates with the fresh air inlet, and the other end of the bypass air supply duct communicates with the exhaust air inlet, One end of the bypass defrosting air duct communicates with the fresh air inlet, the other end of the bypass defrosting air duct communicates with the exhaust air inlet, the power controller is fixed on the outside of the casing, and the power controller 24 are respectively connected to the exhaust fan and the fresh air fan through wires, the bypass defrosting air valve is connected to the casing, the air and air energy recovery ventilation device also includes a bypass air supply air valve, and the bypass air supply air valve The air valve is composed of a second connecting rod, a second motor, a second slider, a second hinge, a partition and a second baffle. The air duct opening is located at the junction of the bypass air supply channel and the fresh air chamber, the fifth air duct opening communicates with the bypass air supply duct, and one end of the partition is arranged on the inner side wall of the casing. The other end of the partition is arranged on the heat exchanger frame, the second baffle is arranged at the opening of the fifth air duct and is hinged to the heat exchanger frame through a second hinge, and one end of the second connecting rod It is hinged with the second baffle, the other end of the second connecting rod is hinged with the second slider, and the second slider is connected with the output shaft of the second motor, and the second motor is fixed on the On the bottom surface, the power controller is connected to the second motor through wires.

The present invention has the following beneficial effects: 1. Since the present invention has designed the bypass air supply duct 18 and the bypass air supply damper 11, the position of the bypass air supply damper 11 can be changed in transition seasons and the The wind duct 18 directly sends fresh air into the room, which effectively utilizes the cooling capacity of the outdoor fresh air, and because the fresh air does not pass through the heat exchanger, the resistance of the fresh air is reduced; 2. In winter, if the long-term operation causes the heat exchanger to If the surface is frosted, switch the device of the present invention to the defrosting state. After the defrosting is completed, it will return to the normal heat exchange state, so that the present invention will not cause a decrease in heat exchange efficiency and exhaust air due to the occurrence of frost in winter in cold regions. The air volume is reduced, resulting in failure to use normally; 3. Since the present invention can operate well in transitional seasons and colder climates, it can increase the annual operating time of air and air energy devices, and can greatly improve the use efficiency of equipment, Ultimately reduce the payback period of the equipment.

Description of drawings

Fig. 1 is a schematic view of the overall top view of the present invention, Fig. 2 is a sectional view of A-A of Fig. 1 , Fig. 3 is a sectional view of B-B of Fig. 1 , Fig. 4 is a sectional view of E-E of Fig. 2 , Fig. 5 is a sectional view of C-C of Fig. 4 , and Fig. 6 is The D-D sectional view of Fig. 4, Fig. 7 is when the present invention is in heat exchange state, the position diagram of bypass air supply air valve 11, Fig. 8 is when the present invention is in heat exchange state, the position of bypass defrosting air valve 6 and air Flow diagram, Figure 9 is a position diagram of the bypass air supply air valve 11 when the present invention is in the defrosting state, and Figure 10 is a position diagram and air flow diagram of the bypass defrosting air valve 6 when the present invention is in the defrosting state, Fig. 11 is a position diagram of the bypass air supply air valve 11 and an air flow diagram when the present invention is in the bypass air supply state, and Fig. 12 is a position diagram of the bypass defrosting air valve 6 when the present invention is in the bypass air supply state .

Detailed ways

Specific embodiment 1: This embodiment is described in conjunction with Fig. 1-Fig. 6. The air and air energy recovery ventilation device in this embodiment includes a casing 1, an exhaust fan 2, a heat exchanger 3, a heat exchanger frame 4, The fresh air blower 5, the bypass defrosting damper 6 and the power controller 24, the heat exchanger frame 4 is fixedly connected to the top surface, the left inner wall and the right inner wall of the casing 1, and the heat exchanger frame 4 The casing 1 is divided into an exhaust chamber 16, a fresh air chamber 17, a bypass air supply passage 18 and a bypass defrosting air passage 19. The heat exchanger 3 is installed in the heat exchanger frame 4, and the heat exchanger A side wall 4-6 of the frame 4 is provided with an exhaust vent 4-1 and a first air passage port 4-3, and the other side wall 4-7 of the heat exchanger frame 4 is provided with a fresh air vent. 4-2 and the second air duct opening 4-4, the exhaust fan 2 is installed in the exhaust chamber 16, the fresh air fan 5 is installed in the fresh air chamber 17, and the casing 1 is located The air outlet of the fan 2 is provided with an exhaust outlet 1-1, the casing 1 is provided with a fresh air outlet 1-2 at the air outlet of the fresh air blower 5, and the casing 1 is provided with a fresh air inlet 1-3 And the fresh air inlet 1-3 is set on the same side as the exhaust air outlet 1-1, the casing 1 is provided with an exhaust air inlet 1-4 and the exhaust air inlet 1-4 is set on the same side as the fresh air outlet 1-2, the One end of the bypass air supply duct 18 communicates with the fresh air inlet 1-3, the other end of the bypass air supply duct 18 communicates with the exhaust air inlet 1-2, and one end of the bypass defrosting duct 19 communicates with the fresh air inlet 1-3. The fresh air inlet 1-3 communicates, the other end of the bypass defrosting air duct 19 communicates with the exhaust air inlet 1-4, the power controller 24 is fixed on the outside of the casing 1, and the power controller 24 passes through The wires are respectively connected to the exhaust fan 2 and the fresh air fan 5, the bypass defrosting damper 6 is connected to the casing 1, the air and air energy recovery ventilation device also includes a bypass air supply damper 11, and the bypass defrosting damper 6 is connected to the casing 1. The ventilation air damper 11 is made of the second connecting rod 12, the second motor 13, the second slide block 14, the second hinge 15, the dividing plate 20 and the second baffle plate 26, and the side wall of the fresh air chamber 17 is provided with The fifth air channel opening 4-5, the fifth air channel opening 4-5 is located at the junction of the bypass air supply channel 18 and the fresh air chamber 17, the fifth air channel opening 4-5 is connected to the bypass The air supply duct 18 communicates, one end of the partition 20 is arranged on the inner side wall of the casing 1, the other end of the partition 20 is arranged on the heat exchanger frame 4, and the second baffle 26 is arranged on the The fifth air passage opening 4-5 is hinged with the heat exchanger frame 4 through the second hinge 15, one end of the second connecting rod 12 is hinged with the second baffle plate 26, and the second connecting rod 12 is hinged. The other end is hinged with the second slider 14, and the second slider 14 is connected with the output shaft of the second motor 13. The second motor 13 is fixed on the bottom surface of the partition 20. The power controller 24 is connected with the second motor 13 by wire. The second slider 14 is driven by the second motor 13 to rotate, and then drives the second connecting rod 12 to move, and the second connecting rod 12 drives the second baffle plate 26 to move, thereby completing the change of the position of the bypass air supply damper 11. The controller 24 has the function of connecting and cutting off the power supply of the exhaust fan 2 , the fresh air fan 5 , the first motor 8 and the second motor 13 .

Specific Embodiment 2: This embodiment is described with reference to FIGS. and the first baffle 25, the first baffle 25 is arranged at the fresh air inlet 1-3 and is hinged with the casing 1 through the first hinge 10, and one end of the first connecting rod 7 is hinged with the first baffle 25 , the other end of the first connecting rod 7 is hinged with the first slider 9, the first slider 9 is connected with the output shaft of the first motor 8, and the first motor 8 is fixed on the bottom end surface of the casing 1, so The power controller 24 is connected with the first motor 8 through wires. The first slider 9 is driven by the first motor 8 to rotate, and then drives the first connecting rod 7 to move, and the first connecting rod 7 drives the first baffle 25 to move, thereby completing the change of the position of the bypass defrosting damper 6 . Other components and connections are the same as those in the first embodiment.

Specific Embodiment Three: This embodiment is described in conjunction with FIGS. 7-12 . The air and air energy recovery ventilation device of this embodiment also includes a fresh air temperature and humidity sensor 21, an exhaust air temperature and humidity sensor 22 and a temperature and humidity acquisition controller 23. The fresh air temperature and humidity sensor 21 and the exhaust air temperature and humidity sensor 22 are arranged in the heat exchanger frame 4, the temperature and humidity acquisition controller 23 is fixed on the top outer wall of the casing 1, and the fresh air temperature and humidity sensor 21 and the exhaust air temperature and humidity sensor 22 are respectively connected to the temperature and humidity acquisition controller 23 through wires, and the temperature and humidity acquisition controller 23 is connected to the power controller 24 through wires. Such a design enables the present invention to automatically switch between the bypass air supply state, the bypass defrosting state and the normal heat exchange state, and perform bypass defrosting at an appropriate time and automatically return to the heat exchange state. Among them, the fresh air temperature and humidity sensor 21 and the exhaust air temperature and humidity sensor 22 adopt the HygroClip S type temperature and humidity probe produced by the Swiss rotronic company; the temperature and humidity acquisition controller 23 adopts the EIO-H type temperature and humidity acquisition control produced by Jingjinhua Technology Co., Ltd. The power controller 24 adopts the power controller of the IPCS R8 model produced by Guangzhou Kaitu Electronic Technology Co., Ltd. Other components and connections are the same as those in the first embodiment.

The present invention turns on the bypass air supply only when the outdoor fresh air can bear the indoor cooling load. When the present invention is in operation, the fresh air temperature and humidity sensor 21 detects the temperature and relative humidity of the fresh air in real time, and the exhaust air temperature and humidity sensor 22 detects the temperature and relative humidity of the exhaust air in real time, and the fresh air temperature and humidity sensor 21 and the exhaust air temperature and humidity sensor 22 will collect The received temperature and humidity information is sent to the temperature and humidity acquisition controller 23. When the temperature and humidity acquisition controller 23 judges that the exhaust air temperature and humidity sensor 22 is higher than a certain temperature value and the difference between the indoor exhaust air temperature and the outdoor fresh air temperature is less than a certain temperature value , then send the stop heat exchange state signal and open the bypass air supply state signal to the power controller 24; 5 Put it in the running state, open the bypass air supply valve 11, connect the bypass air supply air duct 18 and the fifth air duct port 4-5, as shown in Figure 11, and open the bypass defrosting air valve 6 Close, block the bypass defrosting air duct 19 and the fresh air inlet 1-3, as shown in Figure 12. Make the device run in the state of bypass air supply; heat exchange state and bypass state alternately, and automatically adjust according to the temperature of fresh air and exhaust air to realize the function of automatic bypass air supply of the device, so that the device can be efficient in transitional seasons continue to operate.

In addition, the present invention can automatically switch to the defrosting state in winter, and automatically return to the normal heat exchange state after the defrosting is over. The temperature and humidity acquisition controller 23 can automatically adjust the defrosting time and the defrosting interval time according to the temperature and humidity of the fresh air and exhaust air. The fresh air temperature and humidity sensor 21 detects the temperature and relative humidity of the fresh air in real time, the exhaust air temperature and humidity sensor 22 detects the temperature and relative humidity of the exhaust air in real time, and the fresh air temperature and humidity sensor 21 and the exhaust air temperature and humidity sensor 22 transmit the collected temperature and humidity information To the temperature and humidity acquisition controller 23, if the temperature and humidity acquisition controller 23 judges that the working condition can produce frosting, then send the heat exchange status signal and the defrosting status signal to the power controller 24; When the status signal is activated, the exhaust fan 2 and the fresh air fan 5 are placed in the running state, the bypass air supply air valve 11 cuts off the bypass air supply air duct 18 as shown in Figure 7, and the bypass defrosting air valve 6 cuts off the bypass defrosting air Road 19 is shown in Figure 8, so that the device operates in the heat exchange state; when the power controller 14 receives the defrosting state signal, the exhaust fan 2 is placed in the stop state, the fresh air fan 5 is placed in the running state, and the bypass The defrosting air valve 6 opens the bypass defrosting air duct 19, as shown in Figure 10, and the bypass air supply air valve 11 is closed so that the fifth air duct opening 4-5 is closed and blocked, as shown in Figure 9, so that the device operates in the defrosting state . If the temperature and humidity acquisition controller 23 judges that no frosting will occur according to the temperature and humidity of the fresh air and the exhaust air, then the signal of the heat exchange working condition is sent to the power controller 24, so that the device is always running in the heat exchange state, avoiding Occurrence of false defrosting.

Working principle: the invention has three operating states of heat exchange, bypass air supply and defrosting. In the heat exchange state, the bypass air supply air valve 11 cuts off the bypass air supply air duct 18, as shown in Figure 7, and the bypass defrost air valve 6 cuts off the bypass defrost air duct 19, as shown in Figure 8. Both the fan 2 and the fresh air fan 5 are in operation, the fresh air enters from the fresh air inlet 1-3, passes through the first air passage port 4-3 and the heat exchanger 3 flows out from the fresh air outlet 1-2, and the exhaust air passes through the exhaust air inlet 1-4 It enters through the second air passage opening 4-4 and the heat exchanger 3 flows out from the exhaust outlet 1-1, and the fresh air and exhaust air exchange heat and humidity in the heat exchanger 3;

In the bypass defrosting state, the bypass air supply air valve 11 is closed so that the fifth air duct opening 4-5 is closed and blocked (that is, the bypass defrost air valve 11 blocks the bypass air supply air duct 18 from the fresh air chamber 17) , see Figure 9, the bypass defrosting air valve 6 opens the bypass defrosting air duct 19 (that is, the bypass defrosting air valve 6 connects the fresh air inlet 1-3, the bypass air supply air duct 18 and the bypass defrosting air duct 19 barrier), see Fig. 10, now the exhaust fan 2 stops, the fresh air fan 5 operates, and the indoor circulating air enters the defrosting air duct 19 from the exhaust air inlet 1-4, passes through the first air duct opening 4-3 and replaces The heat exchanger 3 flows out from the fresh air outlet 1-2, and the hot air circulating in the room can defrost when it flows through the heat exchanger 3;

In the bypass air supply state, the bypass air supply air valve 11 opens the bypass air supply air duct 18 (that is, the bypass air supply air valve 11 allows the fresh air inlet 1-3 to communicate with the fresh air chamber 17), see Figure 11, by The bypass defrosting air valve 6 closes the bypass defrosting air duct 19 (that is, the bypass defrosting air valve 6 blocks the fresh air inlet 1-3, the bypass air supply air duct 18 and the bypass defrosting air duct 19), see figure 12. At this time, the exhaust fan 2 is stopped, the fresh air fan 5 is running, and the outdoor fresh air enters the bypass air supply duct 18 from the fresh air inlet 1-3, passes through the fifth air duct opening 4-5 and the fresh air fan 5 enters from the fresh air outlet 1 -2 outflow.

Claims (3)

1. an air and the air energy with defrosting and bypass air-supply function reclaims ventilation unit, described air and air energy reclaim ventilation unit and comprise casing (1), air draft blower fan (2), heat exchanger (3), heat exchanger framework (4), new wind blower fan (5), bypass defrost air-valve (6) and power-supply controller of electric (24), described heat exchanger framework (4) and the interior top end face of casing (1), left side madial wall and Right Inboard wall are affixed, described heat exchanger framework (4) is divided into exhaust air box (16) with casing (1), new air compartment (17), bypass air-supply passage (18) and bypass defrost air channel (19), described heat exchanger (3) is installed in the heat exchanger framework (4), a sidewall (4-6) of described heat exchanger framework (4) is provided with the air draft port (4-1) and the first air channel port (4-3), another sidewall (4-7) of described heat exchanger framework (4) is provided with the new wind port (4-2) and the second air channel port (4-4), described air draft blower fan (2) is installed in the exhaust air box (16), described new wind blower fan (5) is installed in the new air compartment (17), the air flow outlet that is positioned at air draft blower fan (2) on the described casing (1) is provided with wind exhausting outlet (1-1), the air flow outlet that is positioned at new wind blower fan (5) on the described casing (1) is provided with new wind outlet (1-2), described casing (1) is provided with fresh inlet (1-3) and fresh inlet (1-3) and the setting of wind exhausting outlet (1-1) homonymy, described casing (1) is provided with air draft import (1-4) and air draft import (1-4) and the setting of new wind outlet (1-2) homonymy, one end of described bypass supply air duct (18) communicates with fresh inlet (1-3), the other end of described bypass supply air duct (18) communicates with air draft import (1-2), one end in described bypass defrost air channel (19) communicates with fresh inlet (1-3), the other end in described bypass defrost air channel (19) communicates with air draft import (1-4), described power-supply controller of electric (24) is packed in the outside of casing (1), described power-supply controller of electric (24) is connected with new wind blower fan (5) with air draft blower fan (2) respectively by lead, described bypass defrost air-valve (6) is connected with casing (1), it is characterized in that described air and air energy reclaim ventilation unit and also comprise bypass air-supply air-valve (11), described bypass air-supply air-valve (11) is by second connecting rod (12), second motor (13), second slide block (14), second hinge (15), dividing plate (20) and second baffle (26) constitute, the sidewall of new air compartment (17) is provided with tendencies road port (4-5), described tendencies road logical (4-5) is positioned at the intersection of described bypass air-supply passage (18) and new air compartment (17), described tendencies road junction (4-5) communicates with bypass supply air duct (18), one end of described dividing plate (20) is arranged on the madial wall of casing (1), the other end of described dividing plate (20) is arranged on the heat exchanger framework (4), described second baffle (26) is arranged on that tendencies road port (4-5) is located and is hinged by second hinge (15) and heat exchanger framework (4), one end of described second connecting rod (12) and second baffle (26) are hinged, the other end of described second connecting rod (12) and second slide block (14) are hinged, described second slide block (14) is in transmission connection with the output shaft of second motor (13), described second motor (13) is packed on the bottom face of dividing plate (20), and described power-supply controller of electric (24) is connected with second motor (13) by lead.

2. reclaim ventilation unit according to described air and the air energy of claim 1 with defrosting and bypass air-supply function, it is characterized in that described bypass defrost air-valve (6) is by first connecting rod (7), first motor (8), first slide block (9), first hinge (10) and first baffle plate (25) constitute, described first baffle plate (25) is arranged on that fresh inlet (1-3) is located and is hinged by first hinge (10) and casing (1), one end of first connecting rod (7) and first baffle plate (25) are hinged, the other end of first connecting rod (7) and first slide block (9) are hinged, first slide block (9) is in transmission connection with the output shaft of first motor (8), first motor (8) is packed on the interior bottom face of casing (1), and described power-supply controller of electric (24) is connected with first motor (8) by lead.

3. reclaim ventilation unit according to claim 1 or 2 described air and air energies with defrosting and bypass air-supply function, it is characterized in that described air and air energy reclaim ventilation unit and also comprise new wind-warm syndrome humidity sensor (21), air draft Temperature Humidity Sensor (22) and humiture collection controller (23), described new wind-warm syndrome humidity sensor (21) and described air draft Temperature Humidity Sensor (22) are arranged in the heat exchanger framework (4), described humiture collection controller (23) is packed on the top of casing (1) lateral wall, described new wind-warm syndrome humidity sensor (21) is connected with humiture collection controller (23) by lead respectively with described air draft Temperature Humidity Sensor (22), and described humiture collection controller (23) is connected with power-supply controller of electric (24) by lead.

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