Non-ventilation type multifunctional indoor air quality adjusting device capable of removing CO2

Abstract

The utility model discloses a multifunctional indoor air quality adjusting device capable of removing CO2 in a non-ventilation mode, belongs to the technical field of air conditioning, solves the problem that an existing indoor CO2 concentration adjusting mode is highly dependent on external air quality, and structurally comprises a hollow layered shell 1 and an inner circulation three-cavity chamber. The internal circulation three-chamber is arranged in the hollow layered shell 1; the inner circulation three-chamber comprises a first chamber, a second chamber and a third chamber which are sequentially arranged from bottom to top, and an indoor and outdoor CO2 filtering pipeline 8 and an exhaust duct partition plate switch 9 are arranged outside the first chamber; the first chamber is used for capturing and filtering CO2, filtering particulate matters and other air impurities in the internal circulation purification process; the second chamber is used for loading and setting a circuit and a control facility; and the third chamber is used for humidifying in the internal circulation purification process.

Description

Technical Field

[0001] The utility model relates to a non-ventilation CO2 removal multifunctional indoor air quality regulating device, belonging to the technical field of air conditioning. Background Art

[0002] Currently, indoor CO2 levels are regulated through fresh air systems, which exchange air between indoor and outdoor spaces. However, this approach has the disadvantage of being highly dependent on external air quality (for example, during periods of haze, fresh air systems can actually worsen indoor air pollution). Furthermore, the load on the piping infrastructure limits its use in small indoor spaces, such as homes.

[0003] Adjusting the indoor CO2 concentration is of great significance to creating good indoor air quality, ensuring the health of indoor personnel and learning and work efficiency. At the same time, indoor humidity, PM2.5 concentration, bacterial count, etc., as long-term indicators of indoor air suitability, should also be considered in the process of improving indoor air quality. The operation of equipment requires energy consumption, and energy-saving design of related devices is imperative. Introducing a time-of-use electricity price adjustment mechanism in the systems and devices in this field, using peak-valley-flat time-of-use electricity price intelligent control to concentrate the energy consumption of the device on valley-priced electricity. This design adapts to the rigid demand and policy guidance of the national grid's peak regulation, and is also beneficial to users' electricity bill savings. Summary of the Invention

[0004] The utility model aims to solve the problem that the existing indoor CO2 concentration regulating method is highly dependent on the external air quality, and further proposes a non-ventilation CO2 removal multifunctional indoor air quality regulating device.

[0005] The technical solution adopted by the present invention to solve the above problems is as follows: The present invention specifically includes:

[0006] A hollow layered shell (1) and three internal circulation chambers;

[0007] The three internal circulation chambers are arranged inside the hollow layered shell (1);

[0008] The internal circulation three chambers include a first chamber, a second chamber and a third chamber arranged in sequence from bottom to top, and the outside of the first chamber is provided with indoor and outdoor CO2 filtering pipes (8) and an exhaust duct partition switch (9);

[0009] The first chamber is used to capture and filter out CO2 and filter air impurities during the internal circulation purification process;

[0010] The second chamber is used to load the setting circuit and control facilities;

[0011] The third chamber is used for humidification during the internal circulation purification process;

[0012] The first chamber and the second chamber are connected and separated by a first louver baffle (10), and the second chamber and the third chamber are connected and separated by a second louver baffle (15).

[0013] Preferably, the first chamber is a radially symmetrical structure, comprising: an air inlet grille (2), a multi-layer filter (3), a solid amine adsorbent (4), a heating wire (5), a sealing ring (6) and a ventilation fan (7);

[0014] The lower end of the air inlet grille (2) is fixedly connected to the bottom of the first chamber, and the upper end is fixedly connected to the top of the first chamber. The top end of the sealing ring (6) is connected to the top of the first chamber. The lower end of the sealing ring (6) is provided with multiple layers of filter screens (3) and solid amine adsorbents (4) in sequence from the outside to the inside. The ventilation fan (7) is arranged in the sealing ring (6). A first louver baffle (10) is provided above the ventilation fan (7).

[0015] Preferably, a receiving chamber is formed between the ventilation fan (7), the bottom of the first chamber and the solid amine adsorbent (4), and a heating wire (5) is provided inside the receiving chamber. The heating wire (5) is a heating device and is arranged around the solid amine adsorbent (4).

[0016] Preferably, the second chamber includes a control system (11), an OLED display operation screen (12), a multifunctional sensor (13), and an outlet CO2 concentration sensor (14);

[0017] The control system (11) is arranged outside the first louver baffle (10), the signal input end of the control system (11) is connected to the signal output end of the time-of-use electricity price module, the OLED display operation screen (12) is arranged on the outer wall of the second chamber, the multifunctional sensor (13) is arranged on the outer wall of the second chamber, the outlet CO2 concentration sensor (14) is connected to the top of the second chamber, and the outer side of the outlet CO2 concentration sensor (14) is provided with a second louver baffle (15).

[0018] Preferably, the multifunctional sensor (13) is composed of a CO2 concentration sensor, a PM2.5 concentration sensor and a humidity sensor, the data output end of the multifunctional sensor (13) is connected to the data input end of the control system (11), and the OLED display operation screen (12) and the mobile terminal operation platform are used to receive and display information from the control system (11) and can send manual instructions to the control system (11).

[0019] Preferably, the third chamber comprises a hollow air duct (16), a water vapor generator (17), a high-frequency oscillation signal generator (18), a water storage tank (19), a mixed air outlet chamber (20), a water injection hole (21) and a flow control valve (22);

[0020] A water vapor generator (17) is arranged between the bottom of the third chamber and the second louver baffle (15), a high-frequency oscillation signal generator (18) is arranged on the water vapor generator (17), and a flow control valve (22) is evenly distributed around the high-frequency oscillation signal generator (18) in a circumferential direction. An annular water storage tank (19) is provided in the side wall of the third chamber, a hollow air duct (16) is provided between the bottom of the water storage tank (19) and the second louver baffle (15), a mixing air outlet chamber (20) is provided in the inner wall of the water storage tank (19), and a water injection hole (21) is provided on the top of the water storage tank (19).

[0021] The beneficial effects of the utility model are:

[0022] 1. This utility model realizes intelligent automation and low energy consumption cost of indoor air quality regulation by introducing indoor air quality coupling time-sharing electricity price adjustment mechanism; through the three-chamber design and multi-module integration, multi-functional and full-grade air quality regulation such as sterilization, humidification and dust removal is added to realize systematic and multi-level indoor air purification.

[0023] 2. The utility model selects and switches the working mode through the signals of multiple indoor air quality parameters such as CO2 concentration and air humidity in the control system, introduces a time-of-use electricity price mechanism to reduce the energy consumption cost of the device, and combines it with manual instructions to realize the intelligence, economy, energy saving and personalization of the system and device.

[0024] 3. The utility model adopts an integrated setting of three-chamber multi-module structure for multi-grade purification and adjustment of indoor air, which is purposeful and hierarchical; the chamber modules are matched layer by layer, the air purification process is integrated, the control system is comprehensively regulated, and the integrity is good; the system device has clear logic, clear structure, simple production, and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural diagram of a non-ventilation CO2 removal multifunctional indoor air quality control device provided by the utility model;

[0026] Figure 1 Among them, 1-hollow layered shell; 2-air inlet grille; 3-multi-layer filter; 4-solid amine adsorbent; 5-electric heating wire; 6-sealing ring; 7-ventilation fan; 8-indoor and outdoor CO2 filtration pipes; 9-exhaust duct partition switch; 10-first louver; 11-control system; 12-OLED display operation screen; 13-multi-function sensor; 14-outlet CO2 concentration sensor; 15-second louver; 16-hollow air duct; 17-water vapor generator; 18-high-frequency oscillation signal generator; 19-water storage tank; 20-mixing outlet chamber; 21-water injection hole; 22-flow control valve.

[0027] Figure 2A cross-sectional top view of the bottom of the third chamber provided by the present invention;

[0028] Figure 2 Among them, 16-hollow air duct; 17-water vapor generator; 18-high-frequency oscillation signal generator; 19-water storage tank; 22-flow control valve.

[0029] Figure 3 This is a schematic diagram of the composition and control flow of the control system 11 provided by the present invention. DETAILED DESCRIPTION

[0030] Combine Figure 1-2 This embodiment is described as follows. Figure 1 As shown, the structure of a non-ventilated CO2 removal multifunctional indoor air quality control device described in this embodiment includes a first chamber, a second chamber, and a third chamber arranged in sequence from bottom to top; the three internal circulation chambers are arranged inside a hollow layered shell 1; the first chamber captures and filters out CO2, filters particulate matter and other air impurities during the internal circulation purification process, and the outside of the first chamber is provided with indoor and outdoor CO2 filtration pipes 8 and an exhaust duct partition switch 9; the second chamber is loaded with circuits and control facilities; the third chamber plays a humidification role during the internal circulation purification process, and the first chamber and the second chamber are connected and separated by a first louver baffle 10, and the second chamber and the third chamber are connected and separated by a second louver baffle 15, and a ventilation fan 7 is provided at the center top of the first chamber.

[0031] The integrated setting of the three-chamber multi-module structure can purify and adjust the indoor air in multiple levels, with strong purpose and hierarchy; the chamber modules are matched layer by layer, the air purification process is integrated, the control system is comprehensively regulated, and the integrity is good; the system device has clear logic, clear structure, simple production, and strong practicality.

[0032] The hollow layered shell 1 is a support and protection device structure, and is designed in layers according to the functions of different chambers. The first chamber shell is hollowed out and is used for internal circulation and purification of the air intake, with an air intake grille installed on the inside; the second chamber shell is solid and is used to carry and protect electronic facilities; the third chamber shell is solid and transparent and is used to check the water storage capacity.

[0033] The first chamber has a radially symmetrical structure and includes: an air inlet grille 2, a multi-layer filter 3, a solid amine adsorbent 4, a heating wire 5, a sealing ring 6, and a ventilation fan 7. The lower end of the air inlet grille 2 is fixedly connected to the bottom of the first chamber, and the upper end is fixedly connected to the top of the first chamber. The top end of the sealing ring 6 is connected to the top of the first chamber. The lower end of the sealing ring 6 is provided with the multi-layer filter 3 and the solid amine adsorbent 4 in sequence from the outside to the inside. The ventilation fan 7 is disposed within the sealing ring 6, and a first louver baffle 10 is provided above the ventilation fan 7. A receiving chamber is formed between the ventilation fan 7, the bottom of the first chamber, and the solid amine adsorbent 4. The heating wire 5 is provided within the receiving chamber as a heating device and is arranged around the carbon capture material, namely the solid amine adsorbent 4. Due to the chemical properties of the solid amine, it has high activity at room temperature and is not negatively affected by CO2 capture under high air humidity conditions. This allows the CO2 filtration and air humidification devices to operate synergistically, and the heating and desorption of CO2 at a low temperature is energy-efficient and does not cause thermal damage to other structures.

[0034] The specific type of the solid amine adsorbent 4 is not limited as long as sufficient strength and heat resistance are ensured. The solid amine adsorbent 4 can be a fiber membrane or a solid material coating template, but must have through holes sufficient for airflow to pass through. The multi-layer filter 3 is a HEPA filter.

[0035] The ventilation fan 7 rotates at a constant speed. As the blades rotate, they compress the air on the upper surface of the blades at an angle, pushing it perpendicular to the blade surface. This forces the air above the blades to "flow away," creating negative pressure there. This creates a low pressure at the center of the device's filter. This internal circulation draws in indoor air, while the CO2 is released while outdoor air is continuously drawn in and discharged.

[0036] The first louver baffle 10, the bottom of the second chamber and the lower side of the solid shell are provided with a heat insulation coating of sufficient thickness.

[0037] The second chamber has a radially symmetrical structure and includes: a control system 11, an OLED display operation screen 12, a multi-function sensor 13, and an outlet CO2 concentration sensor 14;

[0038] The control system 11 is arranged on the outside of the first louver 10, the OLED display operation screen 12 is arranged on the outer wall of the second chamber, the multi-function sensor 13 is arranged on the right wall of the second chamber and is in contact with the outside world, the outlet CO2 concentration sensor 14 is arranged and connected to the top of the second chamber and is arranged parallel to the center of the second chamber, and a second louver 15 is provided on the outside of the outlet CO2 concentration sensor 14.

[0039] The multifunctional sensor 13 is an integrated sensor of CO2 concentration sensor, PM2.5 concentration sensor and humidity sensor. It is connected to the control system 11 through a circuit. The OLED display operation screen 12 and the mobile operation platform can display indoor air parameters in real time, receive information feedback from the control system 11 and send manual instructions to it to adjust the working mode. The control system 11 is wirelessly connected to the time-of-use electricity price module, which uses API to monitor real-time electricity prices or manually input electricity price information.

[0040] The time-of-use electricity price module includes ESP32, API, and manual input window. ESP32 is a networked module used to receive API feedback or manual input from mobile devices to obtain electricity price information.

[0041] like Figure 2 As shown, the third chamber is a bilaterally symmetrical structure, including: a hollow air duct 16, a water vapor generator 17, a high-frequency oscillation signal generator 18, a water storage tank 19, a mixed air outlet chamber 20, a water injection hole 21 and a flow control valve 22;

[0042] A water vapor generator 17 is arranged at the bottom of the third chamber and inside the second louver baffle 15. A high-frequency oscillation signal generator 18 is arranged on the water vapor generator 17. A flow control valve 22 is provided around the high-frequency oscillation signal generator 18. A water tank 19 is provided between the outer wall and the inner wall of the third chamber. A hollow air duct 16 is provided between the bottom of the water tank 19 and the second louver baffle 15. A mixing air outlet chamber 20 is provided in the inner wall of the water tank 19, and a water injection hole 21 is provided at the top of the water tank 19.

[0043] The high-frequency oscillation signal generator 18 is a ceramic pressing device, the water storage tank 19 is a ring structure, and the water storage tank 19 adopts a transparent shell.

[0044] The control system 11 is composed of the main control circuit board and the circuits and signal transmission paths between it and each module. Its detailed composition, control process and logic are as follows: Figure 3 As shown, in the control system 11, the working mode is selected and switched through various indoor air quality parameter signals such as CO2 concentration and air humidity, and the time-of-use electricity price mechanism is introduced to reduce the energy consumption cost of the device. Combined with manual instructions, the system and device are made intelligent, economical, energy-saving and personalized.

[0045] The control system 11 checks the electricity price information and indoor air quality according to the OLED display operation screen 12 to determine whether the device is operating and select the operating mode. The air quality is mainly CO2 concentration and air humidity. When the indoor CO2 concentration reaches the set starting threshold or the air humidity is lower than the set range, the control system 11 controls the start of the internal circulation purification process and performs the internal circulation purification mode. Among them, the CO2 concentration starting adsorption threshold can be set by itself, generally set to about 800ppm and should not exceed 1000ppm. The threshold concentration for stopping CO2 adsorption is recommended to be set to 300ppm. Compared with the specific range value, the CO2 concentration threshold setting has a hysteresis characteristic.

[0046] When the air humidity is higher than the upper limit of the set range in the internal circulation purification mode, the control system 11 can control the high-frequency oscillation signal generator 18 to stop working and the flow control valve 22 to close, and the other functions operate normally. The relative humidity range of the air can be set according to the user's personal needs and preferences, generally between 30% and 70%. For users who are more sensitive to humidity, such as patients with rhinitis, the recommended range is 40% to 60%.

[0047] The internal circulation purification mode specifically includes: the air inlet grille 2, the first louver baffle 10 and the second louver baffle 15 are opened, the exhaust duct partition switch 9 is closed to form an internal circulation path, the ventilation fan 7 runs in the forward direction to form an airflow, and the indoor air is sucked into the hollow shell of the first chamber and the air inlet grille 2 and flows to the center of the first chamber. After being filtered by the multi-layer filter 3, it flows through the carbon capture layer made of solid amine adsorbent 4 to filter out CO2 and then enters the second chamber. After the CO2 concentration is detected by the outlet CO2 concentration sensor 14, it enters the mixed air outlet chamber 20 of the third chamber through the hollow air duct 16. The liquid water in the water tank 19 in the third chamber flows into the water vapor generator 17, and the high-frequency oscillation signal generator 18 ultrasonically atomizes the water droplets. The air and water vapor are mixed and returned to the room, and the above cycle is maintained until the control system 11 controls to stop the internal circulation purification mode.

[0048] The multifunctional sensor 13 and the outlet CO2 concentration sensor 14 detect the CO2 concentration before and after the air passes through the solid amine adsorbent 4 and feed it back to the control system 11. When the concentration difference is less than the set threshold, it is considered that the solid amine adsorbent 4 has reached effective adsorption saturation and the output is a preparation signal for switching to the desorption process. When the electricity price reaches a low electricity price, it switches to the CO2 discharge mode.

[0049] The CO2 exhaust mode specifically includes: the air inlet grille 2, the first louver baffle 10 and the second louver baffle 15 are closed, the exhaust duct partition switch 9 is turned on, the first chamber is connected to the outdoor air through the indoor and outdoor CO2 filtration pipes 8, and is isolated from the second chamber and the indoor air, the control system 11 starts the heating wire 5 for heating, removes CO2 and kills bacteria attached to the multi-layer filter 3, the control system 11 controls the ventilation fan 7 to reverse and adjust the speed through the motor reversal circuit, the outdoor air enters the chamber through the indoor and outdoor CO2 filtration pipes 8 and brings the CO2 desorbed from the solid amine adsorbent 4 out of the room.

[0050] In summary, the utility model can directly select the two modes of internal circulation purification and CO2 exhaust through manual instructions, without the need to set specific modules. The range values and thresholds of the automatic control parameters can be manually modified, and the ventilation means are replaced by carbon capture means to solve the problem that the existing indoor CO2 concentration adjustment method is highly dependent on the external air quality; by introducing the indoor air quality coupling time-sharing electricity price adjustment mechanism, the intelligent automation and low energy consumption cost of indoor air quality adjustment are realized; through the three-chamber design and multi-module integrated integration, the multi-functional and full-grade air quality adjustment of sterilization, humidification and dust removal is added to realize systematic and multi-level indoor air purification.

[0051] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent replacement and improvement of the above embodiments made according to the technical essence of the present invention, within the spirit and principles of the present invention, without departing from the content of the technical solution of the present invention, shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A non-ventilation CO2 removal multifunctional indoor air quality control device, characterized in that: It comprises a hollow layered shell (1), indoor and outdoor CO2 filtering pipes (8), an exhaust duct partition switch (9), a first louver baffle (10), a second louver baffle (15) and three internal circulation chambers; The three internal circulation chambers are arranged inside the hollow layered shell (1); The internal circulation three chambers include a first chamber, a second chamber and a third chamber arranged in sequence from bottom to top, and the outside of the first chamber is provided with indoor and outdoor CO2 filtering pipes (8) and an exhaust duct partition switch (9); The first chamber is used to capture and filter out CO2 and filter air impurities during the internal circulation purification process; The second chamber is used to load the setting circuit and control facilities; The third chamber is used for humidification during the internal circulation purification process; The first chamber and the second chamber are connected and separated by a first louver baffle (10), and the second chamber and the third chamber are connected and separated by a second louver baffle (15).

2. A non-ventilation CO2 removal multifunctional indoor air quality control device according to claim 1, characterized in that: The first chamber comprises an air inlet grille (2), a multi-layer filter (3), a solid amine adsorbent (4), a heating wire (5), a sealing ring (6) and a ventilation fan (7); The lower end of the air inlet grille (2) is fixedly connected to the bottom of the first chamber, the upper end of the air inlet grille (2) is fixedly connected to the top of the first chamber, the upper end of the sealing ring (6) is connected to the top of the first chamber, and the lower end of the sealing ring (6) is provided with multiple layers of filter screens (3) and solid amine adsorbents (4) in sequence from the outside to the inside. The ventilation fan (7) is arranged in the sealing ring (6), and the first louver baffle (10) is arranged above the ventilation fan (7).

3. A non-ventilation CO2 removal multifunctional indoor air quality control device according to claim 2, characterized in that: A receiving chamber is formed between the ventilation fan (7), the bottom of the first chamber and the solid amine adsorbent (4), and a heating wire (5) is provided inside the receiving chamber. The heating wire (5) is a heating device and is arranged around the solid amine adsorbent (4).

4. The multifunctional indoor air quality control device for removing CO2 without ventilation according to claim 1, characterized in that: The second chamber includes a control system (11), an OLED display operation screen (12), a multifunctional sensor (13), and an outlet CO2 concentration sensor (14); The control system (11) is arranged outside the first louver baffle (10), the signal input end of the control system (11) is connected to the signal output end of the time-of-use electricity price module, the OLED display operation screen (12) is arranged on the outer wall of the second chamber, the multifunctional sensor (13) is arranged on the outer wall of the second chamber, the outlet CO2 concentration sensor (14) is connected to the top of the second chamber, and the outer side of the outlet CO2 concentration sensor (14) is provided with a second louver baffle (15).

5. The multifunctional indoor air quality control device for removing CO2 without ventilation according to claim 4 is characterized in that: The multifunctional sensor (13) is composed of a CO2 concentration sensor, a PM2.5 concentration sensor and a humidity sensor. The data output end of the multifunctional sensor (13) is connected to the data input end of the control system (11). The OLED display operation screen (12) and the mobile terminal operation platform are used to receive and display information from the control system (11) and can send manual instructions to the control system (11).

6. The multifunctional indoor air quality control device for removing CO2 without ventilation according to claim 1, characterized in that: The third chamber includes a hollow air duct (16), a water vapor generator (17), a high-frequency oscillation signal generator (18), a water storage tank (19), a mixed air outlet chamber (20), a water injection hole (21) and a flow control valve (22); A water vapor generator (17) is arranged between the bottom of the third chamber and the second louver baffle (15), a high-frequency oscillation signal generator (18) is arranged on the water vapor generator (17), and a flow control valve (22) is evenly distributed around the high-frequency oscillation signal generator (18) in a circumferential direction. An annular water storage tank (19) is provided in the side wall of the third chamber, a hollow air duct (16) is provided between the bottom of the water storage tank (19) and the second louver baffle (15), a mixing air outlet chamber (20) is provided in the inner wall of the water storage tank (19), and a water injection hole (21) is provided on the top of the water storage tank (19).

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