CN111878957B - A purifying and energy-saving fresh air system - Google Patents

Abstract

The invention discloses a fresh air system for purification and energy saving. A fresh air section, a mixing section and a circulation section are arranged in the fresh air system, and a runner adsorption part is arranged in the circulation section, and the runner is arranged in the first air duct and the second air duct. A hot air unit and a cleaning unit are arranged in the second air duct, and the part of the runner in the two air ducts is divided into an adsorption area, a desorption area and a drying area. The adsorption area adsorbs the indoor exhaust gas passing through the first air duct. , and desorb in the desorption zone by the cleaning liquid provided by the cleaning unit, and perform the drying operation by the hot air unit in the drying zone, so as to return to the adsorption zone for the next adsorption operation. The runner is set to absorb the industrial waste gas and desorb it by the cleaning liquid of the cleaning unit in the desorption zone. After this treatment method, the indoor waste gas can be directly discharged, which solves the problem that the existing fresh air system cannot directly discharge the waste gas.

Description

A purifying and energy-saving fresh air system

technical field

The invention belongs to the technical field of fresh air systems, and in particular relates to a fresh air system for purification and energy saving.

Background technique

With the continuous improvement of living standards, people's requirements for the indoor environment are not only satisfied with temperature and humidity, but also put forward higher requirements for cleanliness and freshness and comfort. A large amount of harmful gases, soot and suspended particles gather indoors, which will cause harm to people's health. At present, people often use ventilation and air conditioning technologies to treat the indoor environment. However, although the air conditioner has a certain filtering effect, it cannot exchange the outdoor air with the indoor air. In industrial production, especially in industries that have clean working environment requirements, such as food processing, drug testing, etc., it is often necessary to keep the production environment in a dust-free and stable state, so as to ensure that experimental research is not affected by impurities. Therefore, the production workshop or laboratory adopts a closed environment. Although the entry of external air is prevented, it also leads to a deterioration of the indoor environment, which is harmful to the health of the staff. This needs to be solved by continuously introducing outdoor fresh air through the fresh air system under the requirement of ensuring cleanliness. The existing methods for purifying organic waste gas, such as catalytic combustion, low-temperature catalysis, etc., have high cost and serious energy consumption. Traditional waste gas treatment equipment is not enough to fully treat industrial waste gas, and it cannot meet the requirements of zero emission and zero pollution. The traditional runner device has an adsorption zone and a desorption zone. After desorption by hot air in the desorption zone, the organic waste gas needs to be further treated, otherwise the direct discharge will pollute the atmospheric environment.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a fresh air system that purifies and saves energy, so as to solve the problem that the existing fresh air system cannot directly discharge exhaust gas.

For solving the above problems, the technical scheme of the present invention is:

A fresh air system for purification and energy saving of the present invention comprises a fresh air section, a mixing section and a circulation section;

The input end of the fresh air section is used for receiving outside air, and the output end is communicated with the input end of the mixing section;

The input end of the circulation section is used to receive the exhaust air in the room, and the output end of the circulation section is respectively communicated with the input end of the mixing section and the outside world;

The output end of the mixing section is connected to the room for mixing the air delivered by the fresh air section and the circulation section and outputting it into the room;

The circulation section includes a circulation fan and a runner adsorption part; the input end of the circulation fan is communicated with the room, and the output end is communicated with the runner adsorption part;

The runner adsorption part includes a casing, a runner, a hot air unit, and a cleaning unit; the casing is provided with a first air duct and a second air duct, and the input end of the first air duct is connected to the circulating fan. The output end is communicated with the input end of the mixing section; the output end of the second air duct is communicated with the outside world; the runner is rotatably arranged in the housing and communicated with the first air duct and the second The two air ducts are tangent, the part of the runner located in the first air duct is the adsorption area, and the part of the runner located in the second air duct is the desorption area and the drying area; the hot air unit is located in the The second air duct corresponds to the drying zone; the cleaning unit is arranged in the second air duct and corresponds to the desorption zone, and is used for providing the desorption zone with cleaning liquid.

In the purifying and energy-saving fresh air system of the present invention, the circulation section further includes a preheating part and a heat exchange part;

The preheating part is arranged between the output end of the first air duct and the input end of the mixing section, and is used for preheating the air flowing through the preheating part;

The heat exchanger is arranged between the output end of the second air duct and the room, and is used for recovering the heat energy of the air flowing through the heat exchanger and sending it to the preheating part.

In the fresh air system for purification and energy saving of the present invention, the cleaning unit includes a sprayer, a motor and an electric fan wiper; the sprayer is arranged in the second air duct and corresponds to the desorption zone, and is used for cleaning the desorption zone. The cleaning liquid is sprayed; the motor is arranged in the second air duct, and the electric fan wiper is arranged on the output shaft of the motor to remove the residual adsorbate on the desorption zone.

In the purifying and energy-saving fresh air system of the present invention, the circulation section further includes a cleaning liquid storage tank, which is arranged in the second air duct and is used for receiving the cleaning liquid flowing up and down in the rotation.

In the purifying and energy-saving fresh air system of the present invention, the hot air unit is a hot air blower, and the hot air blower is arranged in the second air duct and corresponds to the drying area.

In the fresh air system for purification and energy saving of the present invention, the runner is a zeolite runner.

In the fresh air system for purification and energy saving of the present invention, the fresh air section includes a fresh air fan and an air filter; the input end of the fresh air fan is communicated with the outside air, and the output end is communicated with the input end of the air filter; the air The output end of the filtering part communicates with the input end of the mixing section.

In the fresh air system for purification and energy saving of the present invention, the mixing section includes a mixing chamber and an air treatment part; the input end of the mixing chamber is respectively connected with the output end of the fresh air section and the output end of the circulation section, and the output end is connected to the The input end of the air treatment unit is communicated; the output end of the air treatment unit communicates with the room.

The purifying and energy-saving fresh air system of the present invention further comprises an oxygen content detection unit, a processor and a regulating valve; the oxygen content detection unit is arranged in the mixing section, and is used to measure the oxygen content in the gas output from the mixing section. detection;

The regulating valve is arranged at the output end of the circulation section, and is used to adjust the output air volume of the circulation section;

The processor is respectively electrically connected with the oxygen content detection unit, the fresh air section and the regulating valve.

Compared with the prior art, the present invention has the following advantages and positive effects due to the adoption of the above technical solutions:

1. In an embodiment of the present invention, a fresh air section, a mixing section and a circulation section are arranged in the fresh air system, and a runner adsorption part is arranged in the circulation section, and the runner is arranged in the first air duct and the second air duct, and is in the first air duct. A hot air unit and a cleaning unit are arranged in the second air duct, and the part of the runner in the two air ducts is divided into an adsorption area, a desorption area and a drying area. The area is desorbed by the cleaning liquid provided by the cleaning unit, and the drying operation is performed by the hot air unit in the drying area, so as to return to the adsorption area for the next adsorption operation. The runner is set to absorb the industrial waste gas, and it is desorbed by the cleaning liquid of the cleaning unit in the desorption zone. After this treatment method, the indoor waste gas can be directly discharged, avoiding the traditional hot air desorption method, which is inefficient and easy to cause Blockage leads to unsatisfactory overall adsorption conditions and requires regular disassembly and cleaning. However, the installation and cleaning of the runner are very cumbersome, and the problem that the runner cannot be directly discharged to the outside is solved, which solves the problem that the existing fresh air system cannot directly discharge exhaust gas.

2. In an embodiment of the present invention, the output end of the circulation section is also connected to the mixing section, and the treated indoor air can be reused for room air supply, which can effectively reduce energy consumption and solve the problem of excessive energy consumption in traditional fresh air systems. question.

3. In an embodiment of the present invention, the desorption zone no longer uses hot air to desorb harmful gases from the runner, but uses a sprayer and a combination of a motor and an electric fan wiper to clean the runner to ensure that the runner will not be damaged. Block the storage to ensure its desorption efficiency.

4. In an embodiment of the present invention, the tail gas can be directly discharged without installing a tail gas treatment device. Compared with the traditional tail gas treatment equipment equipped with a tail gas incineration device, the design has more economic significance.

Description of drawings

Fig. 1 is the schematic diagram of the fresh air system of the present invention;

Fig. 2 is the schematic diagram of the runner partition of the fresh air system of the present invention;

FIG. 3 is a schematic diagram of the runner adsorption part of the fresh air system of the present invention.

Description of reference numerals: 1: Fresh air fan; 2: Air filter part; 3: Mixing room; 4: Oxygen content detection unit; 5: Air treatment part; 6: Room; 7: Circulation fan; 9: air preheating chamber; 10: heat pipe heat exchanger; 11: regulating valve; 12: adsorption zone; 13: desorption zone; 14: drying zone; 15: hot air unit; 16: cleaning unit.

Detailed ways

A fresh air system for purification and energy saving proposed by the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become apparent from the following description and claims.

1 to 3, in one embodiment, a fresh air system for purification and energy saving includes a fresh air section, a mixing section, and a circulation section. in,

The input end of the fresh air section is used to receive outside air, and the output end is communicated with the input end of the mixing section.

The input end of the circulation section is used to receive the exhaust air in the room 6, and the output end of the circulation section is respectively connected with the input end of the mixing section and the outside world.

The output end of the mixing section is connected to the room 6 for mixing the air delivered by the fresh air section and the circulation section and outputting it into the room 6 .

The circulation section includes a circulation fan 7 and a runner adsorption part 8 . The input end of the circulating fan 7 is communicated with the room 6 , and the output end is communicated with the rotor adsorption part 8 .

The runner adsorption part 8 includes a casing, a runner, a hot air unit 15 , and a cleaning unit 16 . The casing is provided with a first air duct and a second air duct, the input end of the first air duct is connected with the output end of the circulating fan 7, and the output end is connected with the input end of the mixing section. The output end of the second air duct is communicated with the outside world. The runner is rotatably arranged in the casing and is tangent to the first air duct and the second air duct. The part of the runner located in the first air duct is the adsorption zone 12, and the part of the runner located in the second air duct is the desorption zone 13 and 12. Drying zone 14. The hot air unit 15 is arranged in the second air duct and corresponds to the drying area 14 . The cleaning unit 16 is arranged in the second air duct and corresponds to the desorption zone 13 , and is used for providing the desorption zone 13 with cleaning liquid.

In this embodiment, a fresh air section, a mixing section and a circulation section are arranged in the fresh air system, and the runner adsorption part 8 is arranged in the circulation section, and the runner is arranged in the first air duct and the second air duct, and in the second air duct A hot air unit 15 and a cleaning unit 16 are provided, and the part of the runner in the two air ducts is divided into an adsorption zone 12, a desorption zone 13 and a drying zone 14. The adsorption zone 12 adsorbs the indoor exhaust gas passing through the first air duct, and In the desorption zone 13, the cleaning solution provided by the cleaning unit 16 is used for desorption, and in the drying zone 14, the drying operation is performed by the hot air unit 15, so as to return to the adsorption zone 12 for the next adsorption operation. A runner is set to absorb the industrial waste gas and desorb it by the cleaning liquid of the cleaning unit 16 in the desorption zone 13. After this treatment method, the indoor waste gas can be directly discharged, avoiding the traditional hot air desorption method, which is inefficient. It is easy to cause blockage, resulting in an unsatisfactory overall adsorption situation. It needs to be disassembled and cleaned regularly. However, the installation and cleaning of the runner is very cumbersome, and the problem that it cannot be directly discharged to the outside is solved. The problem that the existing fresh air system cannot directly discharge exhaust gas.

The output end of the circulation section in this embodiment is also connected to the mixing section, and the treated indoor air can be reused for air supply in room 6, which can effectively reduce energy consumption and solve the problem of excessive energy consumption in traditional fresh air systems. At the same time, the tail gas can be directly discharged without installing a tail gas treatment device. Compared with the traditional tail gas treatment equipment with a tail gas incineration device, the design is more economical.

The specific structure of the fresh air system of the present embodiment will be described below:

In this embodiment, the circulation section further includes a preheating part and a heat exchange part. Wherein, the preheating part is arranged between the output end of the first air duct and the input end of the mixing section, and is used for preheating the air flowing through the preheating part. The heat exchanger is arranged between the output end of the second air duct and the room 6 for recovering the heat energy of the air flowing through the heat exchanger and transporting it to the preheating part. Specifically, the preheating part is the air preheating chamber 9 , and the heat exchange part is the heat pipe heat exchanger 10 . Compared with the traditional fresh air treatment equipment, the use of heat pipes will recover energy. There are no moving parts in the heat pipe, which has high reliability, low maintenance and maintenance costs in the later stage, and the system is compact.

In this embodiment, the cleaning unit 16 includes a sprayer, a motor and an electric fan wiper. The sprayer is arranged in the second air duct and corresponds to the desorption zone 13 , and is used for spraying the cleaning liquid to the desorption zone 13 . The motor is arranged in the second air duct, and the fan wiper is arranged on the output shaft of the motor to remove the residual adsorbate in the desorption zone 13, so as to avoid the accumulation of adsorbate and the residual blockage of the zeolite adsorption position, so as to continuously and efficiently desorb. It can also include a cleaning box, which is arranged in the second air duct, and the sprayer and the motor are both arranged in the cleaning box.

In this embodiment, the circulation section further includes a cleaning liquid storage tank, which is arranged in the second air duct and is used for receiving the cleaning liquid flowing down from the runner.

In this embodiment, the hot air unit 15 is a hot air blower, and the hot air blower is arranged in the second air duct and corresponds to the drying area 14 .

In this embodiment, the runner is a zeolite runner.

In this embodiment, the fresh air section includes a fresh air fan 1 and an air filter 2 . The input end of the fresh air blower 1 is communicated with the outside air, and the output end is communicated with the input end of the air filter part. The output end of the air filter part 2 is connected with the input end of the mixing section. The air filter part 2 is mainly composed of a filter screen and activated carbon, and then the fresh air is sent into the room through the mixing section.

In this embodiment, the mixing section includes a mixing chamber 3 and an air treatment part 5 . The input end of the mixing chamber 3 is communicated with the output end of the fresh air section and the output end of the circulation section respectively, and the output end is communicated with the input end of the air treatment part 5 . The output end of the air handling unit 5 is communicated to the room 6 .

In this embodiment, the fresh air system further includes an oxygen content detection unit 4 , a processor and a regulating valve 11 . The oxygen content detection unit 4 is arranged in the mixing section, and is used for detecting the oxygen content in the gas output from the mixing section. The regulating valve 11 is arranged at the output end of the circulation section, and is used to adjust the output air volume of the circulation section. The processor is respectively electrically connected with the oxygen content detection unit 4 , the fresh air section and the regulating valve 11 . Personnel will consume oxygen indoors, and the consumed oxygen needs to be supplemented by fresh air. The oxygen content detection unit 4 can control the ratio of fresh air to return air to ensure normal work and life for personnel.

The workflow of the fresh air system of the present embodiment is further described below:

The outdoor fresh air is sucked in by the fresh air blower 1, firstly passes through the air filter part 2, and then the fresh air is sent into the room through the mixing chamber 3. The exhaust air from the room 6 passes through the circulating fan 7, and the runner adsorption part 8 is connected to the downstream of the circulating fan 7. The exhaust air passing through the adsorption area 12 of the runner becomes clean air, which can be sent to the mixing chamber 3, and the VOCs gas molecules are absorbed. Adsorbed on the wheel. The desorption zone 13 of the runner desorbs harmful gas molecules from the runner through the cleaning unit 16 . After the runner is heated and dried by the hot air in the drying zone 14, the hot air is discharged from the exhaust duct to the outside, and the exhaust duct is provided with a heat pipe heat exchanger 10 to recycle the heat and use it for the air preheating chamber 9 to heat the return air, Energy consumption can be reduced. The return air and the fresh air are mixed in the mixing chamber 3 , and after the supply air is adjusted to an appropriate temperature and humidity by the air treatment unit 5 , it is sent back to the room 6 . An oxygen content detection unit 4 is set behind the mixing chamber 3, which is connected with the fresh air fan 1 and the regulating valve 11 through signals, and adjusts the ratio of fresh air to return air according to the oxygen content detection system.

After the exhaust air from the room 6 enters the runner equipment through the circulating fan 7, it first passes through the adsorption zone 12. The adsorbate is zeolite, and harmful gas molecules such as VOCs molecules will remain on the runner. The filtered gas enters the preheater through the pipeline and is sent to the mixing chamber 3. The runner drives the shaft to rotate continuously through the motor, and enters the desorption zone 13 to clean the zeolite runner. The traditional hot air desorption is not efficient, and it is easy to cause blockage, resulting in an unsatisfactory overall VOCs adsorption situation, requiring regular disassembly and cleaning, but the installation and cleaning of the runner is very cumbersome, and it cannot be directly discharged to the outside, and the subsequent incineration of VOCs is required. gas equipment. With the cleaning unit 16, the cleaning liquid is sprayed out in the form of spray, and the cleaning efficiency is high, and only the cleaned liquid needs to be collected. No follow-up device is required. After cleaning, the runner needs to be heated by a hot air blower. The hot air blower is composed of a blower, a heater and a control circuit, which ensures that the air is heated to the required temperature, and the runner becomes dry before it can be reused. The hot air of the drying rotor can be directly discharged outside.

The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and the technical equivalents thereof, they still fall within the protection scope of the present invention.

Claims (8)

1. A purifying and energy-saving fresh air system is characterized by comprising a fresh air section, a mixing section and a circulating section;

the input end of the fresh air section is used for receiving outside air, and the output end of the fresh air section is communicated with the input end of the mixing section;

the input end of the circulation section is used for receiving exhaust air in a room, and the output end of the circulation section is respectively communicated with the input end of the mixing section and the outside;

the output end of the mixing section is communicated to the room and is used for mixing the air conveyed by the fresh air section and the circulating section and outputting the air to the room;

the circulating section comprises a circulating fan and a rotating wheel adsorption part; the input end of the circulating fan is communicated with the room, and the output end of the circulating fan is communicated with the rotating wheel adsorption part;

the rotating wheel adsorption part comprises a shell, a rotating wheel, a hot air unit and a cleaning unit; a first air duct and a second air duct are arranged in the shell, the input end of the first air duct is communicated with the output end of the circulating fan, and the output end of the first air duct is communicated with the input end of the mixing section; the output end of the second air duct is communicated with the outside; the rotating wheel is rotatably arranged in the shell and is tangent to the first air duct and the second air duct, the part of the rotating wheel positioned in the first air duct is an adsorption area, and the part of the rotating wheel positioned in the second air duct is a desorption area and a drying area; the hot air unit is arranged in the second air channel and corresponds to the drying area; the cleaning unit is arranged in the second air duct, corresponds to the desorption area and is used for providing cleaning solution for the desorption area;

wherein the cleaning unit comprises a sprayer, a motor and a fan wiper; the sprayer is arranged in the second air channel, corresponds to the desorption area and is used for spraying the cleaning liquid to the desorption area; the motor is arranged in the second air duct, and the electric fan wiper is arranged on an output shaft of the motor and used for removing the residual adsorbate on the desorption area.

2. The clean energy-conserving fresh air system of claim 1, wherein said circulation section further comprises a preheating section and a heat exchanging section;

the preheating part is arranged between the output end of the first air duct and the input end of the mixing section and is used for preheating air flowing through the preheating part;

the heat exchanging part is arranged between the output end of the second air duct and the room and used for recovering the heat energy of the air flowing through the heat exchanging part and transmitting the heat energy to the preheating part.

3. The clean energy efficient fresh air system of claim 1, wherein said circulation section further comprises a cleaning solution reservoir disposed in said second air channel for receiving said cleaning solution flowing down said wheel.

4. The fresh air system with purification and energy saving functions as claimed in claim 1, wherein the hot air unit is a hot air blower, and the hot air blower is disposed in the second air duct and corresponds to the drying area.

5. The clean energy conservation fresh air system of claim 1, wherein the wheel is a zeolite wheel.

6. The clean energy-saving fresh air system of claim 1, wherein the fresh air section comprises a fresh air fan and an air filtering part; the input end of the fresh air fan is communicated with the outside air, and the output end of the fresh air fan is communicated with the input end of the air filtering part; the output end of the air filtering part is communicated with the input end of the mixing section.

7. The clean energy efficient fresh air system of claim 1, wherein said mixing section comprises a mixing chamber, an air handling section; the input end of the mixing chamber is respectively communicated with the output end of the fresh air section and the output end of the circulating section, and the output end of the mixing chamber is communicated with the input end of the air processing part; the output end of the air treatment part is communicated to the room.

8. The clean energy-conserving fresh air system of claim 1, further comprising an oxygen content detection unit, a processor and a regulating valve; the oxygen content detection unit is arranged in the mixing section and is used for detecting the oxygen content in the gas output by the mixing section;

the regulating valve is arranged at the output end of the circulation section and is used for regulating the output air quantity of the circulation section;

the processor is respectively electrically connected with the oxygen content detection unit, the fresh air section and the regulating valve.

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