CN110822613A - A new air system for dehumidification, heat preservation and heat exchange for bathroom and its working method - Google Patents

Abstract

The invention provides a fresh air system for dehumidification, heat preservation and heat exchange for bathroom, which comprises a casing, a metal heat exchange core, an air supply fan and an exhaust fan are arranged in the casing, and the right side of the casing is provided with an outdoor air suction pipe and a Outdoor air exhaust pipe, the left side of the casing is provided with an indoor return air pipe and an indoor air supply pipe, the indoor return air pipe, the exhaust fan, the inner cavity of the metal heat exchange core, and the outdoor air exhaust pipe constitute the indoor damp heat The air discharge channel, the outdoor air suction pipe, the air supply fan, the inner cavity of the outer casing of the metal heat exchange core, and the indoor air supply pipe constitute the outdoor fresh air feeding channel, and the indoor humid and hot air discharge channel and the outdoor fresh air feeding channel The channel is not connected. The invention adopts the compressor-free refrigeration technology, uses the natural temperature difference to dehumidify in winter, saves energy, the greater the temperature difference, the better the effect; the smaller the temperature difference in summer, the less forced dehumidification is needed, and the indoor air is dehumidified by forced air exchange, no matter where Both states can save energy.

Description

A new air system for dehumidification, heat preservation and heat exchange for bathroom and its working method

technical field

The invention relates to the field of bathroom environment adjustment devices, in particular to a fresh air system for dehumidification, heat preservation and heat exchange for bathrooms and a working method thereof.

Background technique

Usually when people take a bath in the bathroom, due to the closed environment of the bathroom, they cannot ventilate in time. In summer, the bathroom often feels hot and humid; in winter, the bathroom is cold and uncomfortable. At present, dehumidifiers used in bathrooms all use compression refrigerators or semiconductor refrigerators, which are costly and waste energy.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a fresh air system for dehumidification, heat preservation and heat exchange for bathroom and its working method. In winter, the natural temperature difference is used for dehumidification, which saves energy. The greater the temperature difference, the better the effect; the smaller the temperature difference in summer, the less forced Dehumidification, through forced exchange of air to achieve dehumidification of indoor air, can save energy in any state.

In order to solve the above technical problems, the embodiments of the present invention provide a fresh air system for dehumidification, heat preservation and heat exchange for bathrooms, including a casing, a condensate water discharge port, an air supply fan, an exhaust fan, a metal heat exchange core, and an internal circulation electronic air valve. and electrical control box, the air supply fan, exhaust fan, metal heat exchange core and internal circulation electronic air valve are all set in the casing;

The metal heat exchange core is arranged in the middle of the inner side of the casing, and the front and rear ends of the metal heat exchange core are sealed with the front and rear walls of the casing, and the right rear side of the metal heat exchange core is provided with a closed air supply The left rear side is provided with an airtight exhaust chamber, the left end of the metal heat exchange core is sealedly connected with the right front side of the exhaust chamber, and the right end of the metal heat exchange core is sealed with the left front side of the air supply chamber;

The air supply fan is arranged in the air supply chamber, the exhaust fan is arranged in the exhaust air chamber, the right side of the casing is provided with an outdoor suction pipe at the position corresponding to the air supply fan, and the left side of the casing is provided with an outdoor suction pipe. The position corresponding to the exhaust fan is provided with an indoor air return pipe, the front side of the outdoor suction pipe is provided with an outdoor air exhaust pipe connected with the casing, and the front side of the indoor return air pipe is provided with an outdoor air exhaust pipe connected with the casing The indoor air supply pipe, the indoor return air pipe, the exhaust fan, the inner cavity of the metal heat exchange core, and the outdoor exhaust pipe constitute the indoor humid and hot air discharge channel. The outdoor suction pipe, the air supply fan, the metal heat exchange The inner cavity of the outer casing of the core and the indoor air supply pipe constitute an outdoor fresh air feeding channel, and the indoor humid and hot air discharge channel is not connected with the outdoor fresh air feeding channel;

The condensed water discharge port is arranged on the bottom plate of the casing on the right front side of the metal heat exchange core, and a condensed water recovery pool is arranged below the condensed water discharge port;

The electrical control box is arranged on the front side of the casing, and the electrical control box is provided with chips and control electrical components;

The rear wall of the air supply chamber is provided with an internal circulation electronic air valve controlled to be opened and closed by an electrical control box.

The above-mentioned fresh air system for dehumidification, heat preservation and heat exchange for bathroom also includes a coarse filter and flushing pipe, a submersible pump is arranged in the condensate water recovery pool, and a coarse filter screen is arranged at the air inlet at the lower end of the outdoor air suction pipe. One end of the pipe is connected to the submersible pump, and the other end extends into the outdoor suction pipe and above the coarse filter.

Further, a liquid level detector is arranged in the condensed water recovery tank, and an electromagnetic switch is arranged on the submersible pump.

Wherein, the end of the coarse filter and flushing pipe located in the outdoor suction pipe is connected with a spray head.

Wherein, the rear wall of the connected electrical control box and the front wall of the casing are provided with electrical ventilation openings, and the electrical ventilation openings communicate with the inner cavity of the casing on the right front side of the metal heat exchange core.

Further, an electrical outlet is provided on the left wall of the electrical control box.

The invention also provides a working method of a fresh air system for dehumidification, heat preservation and heat exchange for bathrooms, including a dehumidification step in winter and a ventilation step in summer, wherein,

The step of dehumidification in winter is: turn on the exhaust fan and the air supply fan, so that the indoor humid and hot air enters the indoor humid and hot air discharge channel, and the outdoor dry and cold air enters the outdoor fresh air into the channel. When the cavity and outdoor dry and cold air flows through the outside of the metal heat exchange core, the principle of dew condensation on the smooth and cold surface is used for the humid and hot air. The indoor humid and hot air and the outdoor dry and cold air exchange air in the metal heat exchange core. The condensed water generated in the exchange core is discharged into the water collecting area through the air flow, and then discharged through the condensed water discharge port, and collected by the condensed water recovery pool, which finally forces the air in the bathroom to dehumidify and realizes indoor moisture removal;

The summer ventilation steps are as follows: when the outdoor temperature reaches 24 degrees or more, the exhaust fan is turned on, and the indoor humid and hot air is discharged to the outdoors through the indoor humid and hot air discharge channel; the air supply fan is turned on, and the outdoor fresh air enters through the outdoor fresh air inlet channel. Indoors, dehumidification is achieved through air exchange.

Wherein, in the dehumidification step in winter, when the outdoor temperature is lower than 5 degrees, the amount of outdoor dry and cold air fed is the minimum amount of fresh air used in the room, at this time, the internal circulation electronic air valve is opened to start indoor circulation, and the indoor humid and hot air Perform cyclic dehumidification.

Further, in the step of dehumidification in winter, when the outdoor temperature is between 5 and 24 degrees, the program design and segmentation control is carried out through the chip in the electrical control box, and the dedicated dehumidification, heat preservation and heat exchange fresh air system for the bathroom is in a state of double circulation inside and outside, and The internal and external dual circulation air volume distribution is automatically and intelligently adjusted according to the outdoor temperature.

The beneficial effects of the above-mentioned technical solutions of the present invention are as follows:

1. The present invention adopts the compressor-free refrigeration technology, which uses natural temperature difference for dehumidification in winter, saving energy, the greater the temperature difference, the better the effect; the smaller the temperature difference in summer, the less forced dehumidification is needed, and the dehumidification of indoor air is achieved by forced air exchange, Energy savings can be achieved in either state.

2. The present invention can realize intelligent control. Through the combination of programming and sensors, it can control the adjustment of temperature difference dehumidification and natural dehumidification according to the season and outdoor air, so as to achieve the highest energy efficiency and the best effect.

3. The present invention uses the recovered condensed water to wash the coarse filter screen, and the system achieves the effect of maintenance-free.

4. The present invention can ensure enough fresh air in the bathroom, keep the temperature comfortable, and save heating energy.

Description of drawings

1 is a front view of Embodiment 1 of the present invention;

FIG. 2 is a bottom view of the first embodiment.

Description of reference numbers:

1. Chassis; 2. Condensate discharge port; 3. Air supply fan; 4. Exhaust fan; 5. Metal heat exchange core; 6. Internal circulation electronic damper; 7. Electrical control box; 8. Outdoor suction Pipe; 9. Indoor air return pipe; 10. Outdoor exhaust pipe; 11. Indoor air supply pipe; 12. Condensate recovery tank; 14. Coarse filter flushing pipe; 15. Submersible pump; 16. Coarse filter screen; 17. Nozzle; 18. Liquid level detector; 19. Electrical vents; 20. Electrical vents.

Detailed ways

In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, the following will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in Figure 1 and Figure 2, a dedicated dehumidification, heat preservation and heat exchange fresh air system for bathroom includes a casing 1, a condensate water discharge port 2, an air supply fan 3, an exhaust fan 4, a metal heat exchange core 5, and an internal circulation electronic The air valve 6 , the electrical control box 7 , the coarse filter flushing pipe 14 , the air supply fan 3 , the exhaust air fan 4 , the metal heat exchange core 5 and the internal circulation electronic air valve 6 are all arranged in the casing 1 .

The metal heat exchange core 5 is arranged in the middle of the inner side of the casing 1, and the front and rear ends of the metal heat exchange core 5 are sealed with the front and rear walls of the casing 1. There is a closed air supply chamber, and a closed air exhaust chamber is provided on the left rear side. The left end of the metal heat exchange core 5 is sealed with the front right side of the exhaust chamber, and the right end of the metal heat exchange core 5 is connected to the air supply chamber. front left seal connection.

The air supply fan 3 is arranged in the air supply chamber, the exhaust fan 4 is arranged in the exhaust air chamber, and the right side of the casing 1 is provided with an outdoor suction pipe 8 at the position corresponding to the air supply fan 3 . The left side of the casing 1 is provided with an indoor air return duct 9 at the position corresponding to the exhaust fan 4, and the front side of the outdoor suction duct 8 is provided with an outdoor exhaust duct 10 connected to the casing 1. The front side of the air duct 9 is provided with an indoor air supply duct 11 connected to the casing 1. The indoor air return duct 9, the exhaust fan 4, the inner cavity of the metal heat exchange core 5, and the outdoor air exhaust duct 10 constitute the indoor damp heat The air discharge channel, the outdoor air suction pipe 8, the air supply fan 3, the inner cavity of the casing outside the metal heat exchange core 5, and the indoor air supply pipe 11 constitute the outdoor fresh air intake channel, and the indoor humid and hot air discharge channel and The outdoor fresh air intake channel is not connected.

The condensed water discharge port 2 is provided on the bottom plate of the casing 1 on the right front side of the metal heat exchange core 5, and a condensed water recovery pool 12 is provided below the condensed water discharge port 2, and the condensed water recovery pool 12 is provided with a Submersible pump 15, a coarse filter screen 16 is provided at the air inlet at the lower end of the outdoor suction pipe 8, one end of the coarse filter flushing pipe 14 is connected with the submersible pump 15, and the other end extends into the outdoor suction pipe 8, and the coarse filter Above the filter screen 16 , a spray head 17 is connected to the end of the coarse filter and flushing pipe 14 located in the outdoor suction pipe 8 .

The condensate recovery tank 12 is provided with a liquid level detector 18, and the submersible pump 15 is provided with an electromagnetic switch.

The electrical control box 7 is arranged on the front side of the casing 1, and the electrical control box 7 is provided with chips and control electrical components. The rear wall of the electrical control box 7 and the front wall of the casing 1 are connected. An electrical vent 19 is provided, and the electrical vent 19 communicates with the inner cavity of the casing 1 on the right front side of the metal heat exchange core 5, so that the outdoor dry air can enter the electrical control box under positive pressure to ensure that the electrical appliance is moisture-proof. An electrical outlet 20 is provided on the left wall of the electrical control box 7 .

The rear wall of the air supply chamber is provided with an internal circulation electronic air valve 6 controlled to be opened and closed by an electrical control box 7 .

The invention also provides a working method of a fresh air system for dehumidification, heat preservation and heat exchange for bathrooms, including a dehumidification step in winter and a ventilation step in summer, wherein,

The step of dehumidification in winter is: turn on the exhaust fan and the air supply fan, so that the indoor humid and hot air enters the indoor humid and hot air discharge channel, and the outdoor dry and cold air enters the outdoor fresh air into the channel. When the cavity and outdoor dry and cold air flows through the outside of the metal heat exchange core, the principle of dew condensation on the smooth and cold surface is used for the humid and hot air. The indoor humid and hot air and the outdoor dry and cold air exchange air in the metal heat exchange core. The condensed water generated in the exchange core is discharged into the water collecting area through the air flow, and then discharged through the condensed water discharge port, and collected by the condensed water recovery pool, which finally forces the air in the bathroom to dehumidify and realizes indoor moisture removal.

When the outdoor temperature is lower than 5 degrees, the input amount of outdoor dry and cold air is the minimum amount of fresh air used in the room. At this time, the internal circulation electronic air valve is opened to start indoor circulation, and the indoor humid and hot air is circulated and dehumidified.

The summer ventilation steps are as follows: when the outdoor temperature reaches 24 degrees or more, the exhaust fan is turned on, and the indoor humid and hot air is discharged to the outdoors through the indoor humid and hot air discharge channel; the air supply fan is turned on, and the outdoor fresh air enters through the outdoor fresh air inlet channel. Indoors, dehumidification is achieved through air exchange.

When the outdoor temperature is between 5 and 24 degrees, the chip in the electrical control box is used for program design and segmented control. The bathroom dedicated dehumidification, heat preservation and heat exchange fresh air system is in a state of internal and external dual circulation, and the distribution of internal and external dual circulation air volume is automatically based on the outdoor temperature. Smart adjustment.

The working principle of the present invention is:

1. The indoor circulation function of the internal circulation electronic air valve is used to automatically adjust the internal circulation air valve according to the outdoor temperature to ensure that the temperature is maintained in winter, and the indoor heat energy is not lost, and the temperature difference is used to dehumidify and dehumidify. In summer, it is dehumidified by air exchange.

The temperature sensor controls the electronic air valve through the electrical control box. When the outdoor temperature is above 24 degrees, the internal circulation electronic air valve is closed, and the system is in a state of full air exchange.

When the outdoor temperature is lower than 5 degrees, the air supply fan will only open 10% of the air volume, which is the minimum amount of fresh air used in the room. The temperature is between 5 and 24 degrees, and it can be controlled by program design. The heat exchange fresh air system is in a state of internal and external double circulation, and the distribution of the internal and external double circulation air volume is automatically and intelligently adjusted according to the outdoor temperature.

2. The shell and internal structural parts of the present invention are all made of stainless steel to prevent rusting.

3. Chips and other control electrical components are installed in the electrical control box of the present invention. In order to ensure drying, the positive pressure of the suction fan is used to pour outdoor air into the electrical box to prevent the entry of humid air.

4. A coarse filter screen is installed at the air suction port of the outdoor air suction pipe of the present invention, and a liquid level detector is installed in the condensed water recovery tank. When the water level reaches a certain height, the trigger program turns on the submersible pump, and at the same time closes the suction fan, The condensed water in the condensed water recovery pool flushes the coarse filter screen. When the water level reaches a low level, the electromagnetic switch is triggered, the submersible pump is turned off, and the suction fan is turned on at the same time, and the heat exchange fresh air system starts to operate normally.

The above are the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. It should be regarded as the protection scope of the present invention.

Claims (9)

1. A dedicated dehumidification and thermal insulation heat exchange fresh air system for bathroom, characterized in that it comprises a casing, a condensed water discharge port, an air supply fan, an exhaust fan, a metal heat exchange core, an internal circulation electronic air valve and an electrical control box, so The air supply fan, exhaust fan, metal heat exchange core and internal circulation electronic air valve are all arranged in the casing; The metal heat exchange core is arranged in the middle of the inner side of the casing, and the front and rear ends of the metal heat exchange core are sealed with the front and rear walls of the casing, and the right rear side of the metal heat exchange core is provided with a closed air supply The left rear side is provided with an airtight exhaust chamber, the left end of the metal heat exchange core is sealedly connected with the right front side of the exhaust chamber, and the right end of the metal heat exchange core is sealed with the left front side of the air supply chamber; The air supply fan is arranged in the air supply chamber, the exhaust fan is arranged in the exhaust air chamber, the right side of the casing is provided with an outdoor suction pipe at the position corresponding to the air supply fan, and the left side of the casing is provided with an outdoor suction pipe. The position corresponding to the exhaust fan is provided with an indoor air return pipe, the front side of the outdoor suction pipe is provided with an outdoor air exhaust pipe connected with the casing, and the front side of the indoor return air pipe is provided with an outdoor air exhaust pipe connected with the casing The indoor air supply pipe, the indoor return air pipe, the exhaust fan, the inner cavity of the metal heat exchange core, and the outdoor exhaust pipe constitute the indoor humid and hot air discharge channel. The outdoor suction pipe, the air supply fan, the metal heat exchange The inner cavity of the outer casing of the core and the indoor air supply pipe constitute an outdoor fresh air feeding channel, and the indoor humid and hot air discharge channel is not connected with the outdoor fresh air feeding channel; The condensed water discharge port is arranged on the bottom plate of the casing on the right front side of the metal heat exchange core, and a condensed water recovery pool is arranged below the condensed water discharge port; The electrical control box is arranged on the front side of the casing, and the electrical control box is provided with chips and control electrical components; The rear wall of the air supply chamber is provided with an internal circulation electronic air valve controlled to be opened and closed by an electrical control box. 2. The fresh air system for dehumidification, heat preservation and heat exchange for bathroom according to claim 1, characterized in that it also comprises a coarse filter and flushing pipe, a submersible pump is provided in the condensate water recovery tank, and an air inlet at the lower end of the outdoor air suction pipe is provided. There is a coarse filter screen at the place, one end of the coarse filter and flushing pipe is connected with the submersible pump, and the other end extends into the outdoor suction pipe and above the coarse filter screen. 3. The fresh air system for dehumidification, heat preservation and heat exchange for bathroom according to claim 1 or 2, characterized in that, a liquid level detector is provided in the condensed water recovery tank, and an electromagnetic switch is provided on the submersible pump. 4 . The fresh air system for dehumidification, heat preservation and heat exchange for bathroom according to claim 2 , wherein a spray head is connected to the end of the coarse filter and flushing pipe located in the outdoor suction pipe. 5 . 5. The fresh air system for dehumidification, heat preservation and heat exchange for bathroom according to claim 1, characterized in that, an electrical vent is provided on the rear wall of the connected electrical control box and the front wall of the cabinet, and the electrical ventilating The port communicates with the inner cavity of the casing on the right front side of the metal heat exchange core. 6 . The fresh air system for dehumidification, heat preservation and heat exchange for bathroom according to claim 1 or 5 , characterized in that an electrical outlet is provided on the left wall of the electrical control box. 7 . 7. A working method of a bathroom dedicated dehumidification, heat preservation and heat exchange fresh air system, characterized in that it comprises a dehumidification step in winter and a ventilation step in summer, wherein, The step of dehumidification in winter is: turn on the exhaust fan and the air supply fan, so that the indoor humid and hot air enters the indoor humid and hot air discharge channel, and the outdoor dry and cold air enters the outdoor fresh air into the channel. When the cavity and outdoor dry and cold air flows through the outside of the metal heat exchange core, the principle of dew condensation on the smooth and cold surface is used for the humid and hot air. The indoor humid and hot air and the outdoor dry and cold air exchange air in the metal heat exchange core. The condensed water generated in the exchange core is discharged into the water collecting area through the air flow, and then discharged through the condensed water discharge port, and collected by the condensed water recovery pool, which finally forces the air in the bathroom to dehumidify and realizes indoor moisture removal; The summer ventilation steps are as follows: when the outdoor temperature reaches 24 degrees or more, the exhaust fan is turned on, and the indoor humid and hot air is discharged to the outdoors through the indoor humid and hot air discharge channel; the air supply fan is turned on, and the outdoor fresh air enters through the outdoor fresh air inlet channel. Indoors, dehumidification is achieved through air exchange. 8. The working method of the dedicated dehumidification, heat preservation and heat exchange fresh air system for bathroom according to claim 7, characterized in that, in the dehumidification step in winter, when the outdoor temperature is lower than 5 degrees, the feeding amount of outdoor dry and cold air is for the supply of air. The minimum indoor fresh air usage, at this time, open the internal circulation electronic air valve to start the indoor circulation, and the indoor humid and hot air will be circulated and dehumidified. 9. The working method of the bathroom dedicated dehumidification, heat preservation and heat exchange fresh air system according to claim 7 or 8, characterized in that, in the winter dehumidification step, when the outdoor temperature is between 5 and 24 degrees, through the electrical control box The chip is programmed and controlled in sections, and the bathroom-specific dehumidification, heat preservation and heat exchange fresh air system is in a state of internal and external dual circulation, and the distribution of internal and external dual circulation air volume is automatically and intelligently adjusted according to the outdoor temperature.

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