Device for purifying ozone and recovering oxygen

Abstract

The invention relates to the technical field of environment monitoring, in particular to a device for purifying ozone and recycling oxygen, which comprises a metal shell serving as an external protective layer of the whole device, and an air inlet is formed in one side of the metal shell. An air pump, a heating device and an ozone catalyst-loaded oxygen molecular sieve are arranged in the metal shell in the horizontal direction, the air inlet, the air pump, the heating device and the ozone catalyst-loaded oxygen molecular sieve are sequentially communicated, and the ozone catalyst-loaded oxygen molecular sieve is used for rapidly decomposing ozone. The ozone decomposition catalyst is loaded on the oxygen molecular sieve, indoor air is circularly introduced into the heating device through the air pump, ozone in the indoor air can be continuously removed and converted into oxygen to be stored, and more efficient elimination of ozone is achieved; no waste is generated in the ozone eliminating process, and therefore the dual purposes of environmental protection and resource recovery are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of environmental monitoring, in particular to a device for purifying ozone and recovering oxygen. Background Art

[0002] With the acceleration of industrialization, environmental pollution problems have become increasingly prominent, especially air pollution, which has become the focus of global attention. Ozone, as an atmospheric pollutant, damages the ecological environment. At the same time, it poses a threat to human health because of its low exposure risk but high health risk.

[0003] In the prior art, patent number CN 107166573B is a technology for purifying and recovering ozone. It uses catalysts including silver oxide, copper oxide, manganese oxide, etc. to decompose ozone into oxygen and directly discharge it into the air. The technology has the problem that the catalyst is easily adsorbed by water molecules and deactivated. Patent number CN 203170300 U discloses a honeycomb cordierite ozone decomposition catalyst. This physical adsorption method is less efficient in eliminating ozone.

[0004] However, in the prior art, indoor ozone removal methods such as activated carbon adsorbents not only have low adsorption efficiency and long purification cycles, but the activated carbon will reach a saturated state after adsorbing a certain amount of ozone, and new activated carbon needs to be replaced regularly, which not only increases operating costs, but also creates problems with waste disposal. Summary of the invention

[0005] The object of the present invention is to provide a device for purifying ozone and recovering oxygen to solve the problems raised in the above background technology.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A device for purifying ozone and recovering oxygen, comprising a metal shell as an outer protective layer of the entire device, an air inlet is installed on one side of the metal shell, and an air pump, a heating device and an ozone catalyst-loaded oxygen molecular sieve are arranged horizontally inside the metal shell, wherein the air inlet, the air pump, the heating device and the ozone catalyst-loaded oxygen molecular sieve are connected in sequence;

[0008] The ozone catalyst loaded oxygen molecular sieve is used to quickly decompose ozone and generate oxygen to pass through the ozone catalyst loaded oxygen molecular sieve. The heating device is used to heat the air to be purified to 100-120° C. to evaporate water vapor in the air and avoid deactivation of the catalyst on the ozone catalyst loaded oxygen molecular sieve due to adsorption of water molecules.

[0009] An ozone sensor is installed on the metal shell, and the ozone sensor is electrically connected to the air pump for monitoring the ozone concentration in the air and triggering the air pump when the ozone concentration reaches a set value.

[0010] The ozone catalyst loaded oxygen molecular sieve is connected to a gas exhaust pipe and a gas pressure pump, an oxygen tank is installed inside the metal shell, the gas pressure pump is connected to the oxygen tank and is used to pressurize and transport oxygen into the oxygen tank, and one end of the gas exhaust pipe extends to the outside of the metal shell.

[0011] The ozone catalyst loaded oxygen molecular sieve is an ozone decomposition catalyst loaded on an oxygen molecular sieve, wherein the preparation method of the ozone catalyst is as follows:

[0012] Step 1: calcine the oxygen molecular sieve in a muffle furnace at 400°C for 2h;

[0013] Step 2: placing the calcined support in a manganese nitrate solution (Mn(NO3)2, 50%) for 8 hours, then drying in a muffle furnace at 200°C for 2 hours, and calcining at 400°C for 2 hours to obtain substance A;

[0014] Step 3: Substance A is placed in iron nitrate nonahydrate (Fe(NO3)2·9H2O) for 8 hours, then dried in a muffle furnace at 200°C for 2 hours, and calcined at 400°C for 2 hours to obtain substance B;

[0015] Step 4: placing substance B in copper nitrate trihydrate (Cu(NO3)2·3H2O) for 8 hours, then drying in a muffle furnace at 200°C for 2 hours, calcining at 400°C for 2 hours, and obtaining the ozone decomposition catalyst after cooling.

[0016] The heating device includes a tubular container with a mesh heating wire inside, the top of the tubular container is connected to an arc cover, a condensation chamber is formed between the arc cover and the tubular container, and the top of the tubular container is fixedly connected to a connecting air nozzle, which is used to connect the condensation chamber and the arc cover.

[0017] A servo motor is fixedly connected to the outer side of the condensation bin, and a large winding drum and a small winding drum are fixedly connected to the output end of the servo motor.

[0018] The bottom of the condensation bin is fixedly connected with a guide pipe, the middle of the guide pipe is fixedly connected with a sealing sleeve, the inner wall of the sealing sleeve is fixedly connected with a tension spring, one end of the tension spring is fixedly connected with a movable plug, the movable plug is fixedly connected with a first movable pull rope, one end of the first movable pull rope is bent upward and fixedly connected to the small winding drum.

[0019] A support frame is fixedly connected to the interior of the tubular container, a power gear is rotatably connected to one side of the support frame, and a fan blade is fixedly connected to one side of the power gear;

[0020] A guide rod is fixedly connected inside the tubular container, a sliding plate is slidably connected to the guide rod, a power rack is fixedly connected to the bottom of the sliding plate, the power rack and the power gear are meshed, a return spring is sleeved on the guide rod, one end of the return spring is fixedly connected to the sliding plate, one end of the sliding plate is fixedly connected to a second movable pull rope, one end of the second movable pull rope passes through the tubular container and the arc cover in sequence and is fixedly connected to the large winding drum.

[0021] A solenoid valve is installed at the bottom of the flow guide pipe, and a ventilation pipe is fixedly connected to one side of the flow guide pipe and located above the solenoid valve, and one end of the ventilation pipe extends to the interior of the tubular container.

[0022] Beneficial effects of the present invention:

[0023] 1. The present invention loads an ozone decomposition catalyst on an oxygen molecular sieve and circulates the indoor air into a heating device through an air pump, thereby continuously removing ozone from the indoor air and converting it into oxygen for storage, thereby achieving more efficient ozone elimination. The process of ozone elimination does not generate waste, thereby achieving the dual goals of environmental protection and resource recovery.

[0024] 2. The present invention collects the steam droplets generated by evaporation by arranging a guide pipe and a condensation chamber, and utilizes the downward flow characteristic of the droplets. When the servo motor is started, vertical and horizontal airflows are simultaneously generated in the tubular container, thereby enhancing the fluidity of the air inside the tubular container, so that the air in the tubular container can be heated more quickly and fully and the water vapor can be evaporated. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 The present invention Figure 1 A schematic diagram of the structure of the heating device;

[0028] Figure 3 The present invention Figure 2 A cross-sectional view of the middle tube container portion;

[0029] Figure 4 The present invention Figure 3 A schematic diagram of the structure of the middle sealing sleeve;

[0030] Figure 5 The present invention Figure 2 Schematic diagram of the structure of the rear view of the mid-tube container.

[0031] The reference numerals in the figures are as follows:

[0032] 1. Metal casing, 2. Air inlet, 3. Air pump, 4. Heating device, 5. Ozone catalyst loaded oxygen molecular sieve, 6. Ozone sensor, 7. Gas exhaust pipe, 8. Gas pressure pump, 9. Oxygen tank, 10. , 11. Tubular container, 12. Arc cover, 13. Condensation chamber, 14. Connecting air nozzle, 15. Flow guide pipe, 16. Sealing sleeve, 17. Movable plug, 18. First movable pull rope, 19. Servo motor, 20. Large winding drum, 21. Small winding drum, 22. Solenoid valve, 221. Air pipe, 23. Power gear, 24. Fan blade, 25. Guide rod, 26. Sliding plate, 27. Power rack, 28. Reset spring, 29. Second movable pull rope. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] A device for purifying ozone and recovering oxygen, comprising a metal shell 1 as an external protective layer of the entire device, an air inlet 2 is installed on one side of the metal shell 1, and an air pump 3, a heating device 4 and an ozone catalyst-loaded oxygen molecular sieve 5 are arranged horizontally inside the metal shell 1, wherein the air inlet 2, the air pump 3, the heating device 4 and the ozone catalyst-loaded oxygen molecular sieve 5 are connected in sequence;

[0035] The ozone catalyst loaded oxygen molecular sieve 5 is used to quickly decompose ozone and generate oxygen to pass through the ozone catalyst loaded oxygen molecular sieve 5. The heating device 4 is used to heat the air to be purified to 100-120° C. to evaporate water vapor in the air to avoid the adsorption of water molecules leading to the deactivation of the catalyst on the ozone catalyst loaded oxygen molecular sieve 5.

[0036] like Figure 1 , Figure 2 The air inlet 2, the air pump 3, the heating device 4 and the ozone catalyst loaded oxygen molecular sieve 5 are all interconnected channels, wherein the heating device 4 has an openable and closable door (not shown in the figure) at one end close to the ozone catalyst loaded oxygen molecular sieve 5. The door is closed during heating and opened after heating is completed.

[0037] An ozone sensor 6 is installed on the metal housing 1 , and the ozone sensor 6 is electrically connected to the air pump 3 for monitoring the ozone concentration in the air and triggering the air pump 3 when the ozone concentration reaches a set value.

[0038] like Figure 1 The ozone sensor 6 is in the prior art and can monitor the ozone concentration in the air, which will not be described in detail here.

[0039] The ozone catalyst loaded oxygen molecular sieve 5 is connected to a gas exhaust pipe 7 and a gas pressure pump 8, an oxygen tank 9 is installed inside the metal shell 1, the gas pressure pump 8 is connected to the oxygen tank 9, and is used to pressurize and transport oxygen into the oxygen tank 9, and one end of the gas exhaust pipe 7 extends to the outside of the metal shell 1.

[0040] like Figure 1 After ozone is decomposed by the ozone catalyst loaded oxygen molecular sieve 5, oxygen passes through the ozone catalyst loaded oxygen molecular sieve 5, while other gases cannot pass through the ozone catalyst loaded oxygen molecular sieve 5 and are discharged to the outside of the metal shell 1 through the gas exhaust pipe 7.

[0041] The ozone catalyst loaded oxygen molecular sieve 5 is an ozone catalyst loaded on an oxygen molecular sieve, wherein the preparation method of the ozone catalyst is as follows:

[0042] Step 1: calcine the oxygen molecular sieve in a muffle furnace at 400°C for 2h;

[0043] Step 2: placing the calcined support in a manganese nitrate solution (Mn(NO3)2, 50%) for 8 hours, then drying in a muffle furnace at 200°C for 2 hours, and calcining at 400°C for 2 hours to obtain substance A;

[0044] Step 3: Substance A is placed in iron nitrate nonahydrate (Fe(NO3)2·9H2O) for 8 hours, then dried in a muffle furnace at 200°C for 2 hours, and calcined at 400°C for 2 hours to obtain substance B;

[0045] Step 4: placing substance B in copper nitrate trihydrate (Cu(NO3)2·3H2O) for 8 hours, then drying in a muffle furnace at 200°C for 2 hours, calcining at 400°C for 2 hours, and obtaining the ozone decomposition catalyst after cooling.

[0046] like Figure 1 The amount of catalyst filler on the ozone catalyst loaded oxygen molecular sieve 5 is 0.5-3m 3, it can decompose ozone with a concentration of 0.01-20ppm into oxygen, ensuring that the gas stays in the chamber where the ozone catalyst loaded oxygen molecular sieve 5 is located for ≥3s, the gas flow rate is 0.26-0.48m / s, and the purified air speed is 0.16-0.95m3 / s. Under this working condition, the decomposition efficiency is 94%-98%, and the service life of this working condition reaches 1-2 years.

[0047] The heating device 4 includes a tubular container 11 with a mesh heating wire inside, the top of the tubular container 11 is connected to an arc cover 12, a condensation bin 13 is formed between the arc cover 12 and the tubular container 11, and the top of the tubular container 11 is fixedly connected to a connecting air nozzle 14, which is used to connect the condensation bin 13 and the arc cover 12.

[0048] like Figure 2 and Figure 3 Both ends of the arc cover 12 are closed, and only a part of them is shown in the figure, so that a closed space is formed inside the arc cover 12. There is a mesh heating wire in the prior art inside the tubular container 11, which can heat the air in the tubular container 11.

[0049] A servo motor 19 is fixedly connected to the outer side of the condensation chamber 13 , and a large winding drum 20 and a small winding drum 21 are fixedly connected to the output end of the servo motor 19 .

[0050] like Figure 2 The servo motor 19 is externally connected to a power supply and is provided with a corresponding control switch on the outside. Automatic control is achieved through a program. The radius of the large winding drum 20 is greater than that of the small winding drum 21, so that after the large winding drum 20 and the small winding drum 21 rotate the same number of circles, the winding length of the large winding drum 20 for the second active pull rope 29 exceeds the winding length of the small winding drum 21 for the first active pull rope 18, thereby increasing the stroke of the second active rope 29 when pulling the power rack 27.

[0051] The bottom of the condensation bin 13 is fixedly connected with a guide tube 15, the middle of the guide tube 15 is fixedly connected with a sealing sleeve 16, the inner wall of the sealing sleeve 16 is fixedly connected with a tension spring, one end of the tension spring is fixedly connected with a movable plug 17, the movable plug 17 is fixedly connected with a first movable pull rope 18, one end of the first movable pull rope 18 is bent upward and fixedly connected to the small winding reel 21.

[0052] like Figure 3 and Figure 4 The movable plug 17 can block the guide tube 15. One end of the sealing sleeve 16 has an upwardly bent sleeve, and the first movable pull rope 18 passes through the sleeve, which provides guidance for the first movable pull rope 18 while reducing the friction generated by bending the first movable pull rope 18.

[0053] The interior of the tubular container 11 is fixedly connected to a support frame, one side of the support frame is rotatably connected to a power gear 23, and one side of the power gear 23 is fixedly connected to a fan blade 24;

[0054] like Figure 2 and Figure 4 The fan blade 24 is composed of three fan-shaped parts and can rotate together with the power gear 23.

[0055] A guide rod 25 is fixedly connected inside the tubular container 11, a sliding plate 26 is slidably connected to the guide rod 25, a power rack 27 is fixedly connected to the bottom of the sliding plate 26, the power rack 27 is meshed with the power gear 23, a return spring 28 is sleeved on the guide rod 25, one end of the return spring 28 is fixedly connected to the sliding plate 26, one end of the sliding plate 26 is fixedly connected to a second movable pull rope 29, one end of the second movable pull rope 29 passes through the tubular container 11 and the arc cover 12 in sequence and is fixedly connected to the large winding drum 20.

[0056] like Figure 2 and Figure 5 The cross section of the guide rod 25 is a regular hexagon, which can ensure the horizontal movement of the sliding plate 26 and the power rack 27.

[0057] A solenoid valve 22 is installed at the bottom of the flow guide tube 15 , and a ventilation pipe 221 is fixedly connected to one side of the flow guide tube 15 and above the solenoid valve 22 . One end of the ventilation pipe 221 extends to the interior of the tubular container 11 .

[0058] like Figure 2 and Figure 3 The air pipe 221 extends from the bottom of the tubular container 11 to the interior of the tubular container 11.

[0059] The working principle of the device for purifying ozone and recovering oxygen provided by the present invention is as follows:

[0060] First, an ozone sensor is used to monitor the ozone concentration in the air. When the ozone concentration reaches a preset threshold, the air pump 3 is triggered. The air pump 3 sucks the air to be purified through the air inlet 2 to the heating device 4. The sucked gas is first heated to 100-120°C. At this temperature, the water vapor in the gas is evaporated to avoid the adsorption of water molecules and the deactivation of the catalyst. At the same time, the ozone decomposition rate is improved at this temperature.

[0061] The gas to be purified is decomposed and releases oxygen when passing through the ozone catalyst loaded oxygen molecular sieve 5. After being pressurized by the gas pressure pump, the pure oxygen is stored in the oxygen tank 9 for further use.

[0062] When ozone enters the tubular container 11 in the heating device 4 for heating, the steam generated by the heating will enter the condensation chamber 13 through the connecting air nozzle 14. After condensation is completed in the condensation chamber 13, the liquid droplets will drip into the condensation chamber 13 and finally flow into the position above the sealing sleeve 16 in the guide pipe 15.

[0063] After the droplets have accumulated for a period of time, the servo motor 19 can be started, and the servo motor 19 drives the large winding drum 20 and the small winding drum 21 to rotate counterclockwise to reel in the first movable pull rope 18 and the second movable pull rope 29. At this time, the first movable pull rope 18 drives the movable plug 17 to move horizontally, and the water above the movable plug 17 falls, squeezing the air below the movable plug 17 in the guide tube 15, so that the air enters the tubular container 11 through the air guide tube 221, and generates an upward airflow in the tubular container 11;

[0064] At the same time, the second movable pull rope 29 pulls the power rack 27, driving the power gear 23 and the fan blades 24 to rotate, generating horizontal airflow inside the tubular container 11, and finally opening the solenoid valve 22 to discharge the water in the guide pipe 15. The servo motor 19 rotates clockwise to release the first movable pull rope 18 and the second movable pull rope 29. Under the action of the reset spring 28 and the tension spring, the power rack 27 and the movable plug 17 are reset.

[0065] Compared with the related art, the device for purifying ozone and recovering oxygen provided by the present invention has the following beneficial effects:

[0066] 1. The present invention loads an ozone decomposition catalyst on an oxygen molecular sieve and circulates the indoor air into a heating device 4 through an air pump 3, thereby continuously removing ozone from the indoor air and converting it into oxygen for storage, thereby achieving more efficient ozone elimination. The process of ozone elimination does not generate waste, thereby achieving the dual goals of environmental protection and resource recovery.

[0067] 2. The present invention collects the steam droplets generated by evaporation by providing a guide pipe 15 and a condensation chamber 13, and utilizes the downward flow characteristics of the droplets. When the servo motor is started, vertical and horizontal airflows are simultaneously generated in the tubular container 11, thereby enhancing the fluidity of the air inside the tubular container 11, so that the air in the tubular container 11 can be heated more quickly and fully and the water vapor can be evaporated.

[0068] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A device for purifying ozone and recovering oxygen, comprising a metal housing (1) as an outer protective layer of the entire device, characterized in that: An air inlet (2) is installed on one side of the metal shell (1), and an air pump (3), a heating device (4) and an ozone catalyst-loaded oxygen molecular sieve (5) are arranged in a horizontal direction inside the metal shell (1), wherein the air inlet (2), the air pump (3), the heating device (4) and the ozone catalyst-loaded oxygen molecular sieve (5) are connected in sequence; The ozone catalyst-loaded oxygen molecular sieve (5) is used to quickly decompose ozone and generate oxygen to pass through the ozone catalyst-loaded oxygen molecular sieve (5). The heating device (4) is used to heat the air to be purified to (100)-(120)° C. to evaporate water vapor in the air and avoid deactivation of the catalyst on the ozone catalyst-loaded oxygen molecular sieve (5) due to adsorption of water molecules.

2. The device for purifying ozone and recovering oxygen according to claim 1, characterized in that: An ozone sensor (6) is installed on the metal housing (1); the ozone sensor (6) is electrically connected to the air pump (3) and is used to monitor the ozone concentration in the air and trigger the air pump (3) when the ozone concentration reaches a set value.

3. The device for purifying ozone and recovering oxygen according to claim 1, characterized in that: The ozone catalyst-loaded oxygen molecular sieve (5) is connected to a gas discharge pipe (7) and a gas pressure pump (8); an oxygen tank (9) is installed inside the metal shell (1); the gas pressure pump (8) is connected to the oxygen tank (9) and is used to pressurize and transport oxygen into the oxygen tank (9); one end of the gas discharge pipe (7) extends to the outside of the metal shell (1).

4. The device for purifying ozone and recovering oxygen according to claim 1, characterized in that: The ozone catalyst loaded oxygen molecular sieve 5 is an ozone catalyst loaded on an oxygen molecular sieve, wherein the preparation method of the ozone catalyst is as follows: Step 1: calcine the oxygen molecular sieve in a muffle furnace at 400°C for 2h; Step 2: placing the calcined support in a manganese nitrate solution for 8 hours, then drying in a muffle furnace at 200°C for 2 hours, and calcining at 400°C for 2 hours to obtain substance A; Step 3: Substance A is placed in iron nitrate nonahydrate for 8 hours, then dried in a muffle furnace at 200°C for 2 hours, and calcined at 400°C for 2 hours to obtain substance B; Step 4: placing substance B in copper nitrate trihydrate for 8 hours, then drying in a muffle furnace at 200° C. for 2 hours, calcining at 400° C. for 2 hours, and obtaining the ozone decomposition catalyst after cooling.

5. The device for purifying ozone and recovering oxygen according to claim 1, characterized in that: The heating device (4) comprises a tubular container (11) with a mesh heating wire inside, the top of the tubular container (11) is connected to an arc cover (12), a condensation chamber (13) is formed between the arc cover (12) and the tubular container (11), and a connecting air nozzle (14) is fixedly connected to the top of the tubular container (11), and the connecting air nozzle (14) is used to connect the condensation chamber (13) and the arc cover (12).

6. The device for purifying ozone and recovering oxygen according to claim 5, characterized in that: A servo motor (19) is fixedly connected to the outside of the condensation bin (13), and a large winding drum (20) and a small winding drum (21) are fixedly connected to the output end of the servo motor (19).

7. The device for purifying ozone and recovering oxygen according to claim 6, characterized in that: The bottom of the condensation bin (13) is fixedly connected to a guide tube (15), the middle of the guide tube (15) is fixedly connected to a sealing sleeve (16), the inner wall of the sealing sleeve (16) is fixedly connected to a tension spring, one end of the tension spring is fixedly connected to a movable plug (17), the movable plug (17) is fixedly connected to a first movable pull rope (18), one end of the first movable pull rope (18) is bent upward and fixedly connected to the small winding drum (21).

8. The device for purifying ozone and recovering oxygen according to claim 6, characterized in that: The interior of the tubular container (11) is fixedly connected to a support frame, one side of the support frame is rotatably connected to a power gear (23), and one side of the power gear (23) is fixedly connected to a fan blade (24); A guide rod (25) is fixedly connected inside the tubular container (11), a sliding plate (26) is slidably connected to the guide rod (25), a power rack (27) is fixedly connected to the bottom of the sliding plate (26), the power rack (27) is meshed with the power gear (23), a return spring (28) is sleeved on the guide rod (25), one end of the return spring (28) is fixedly connected to the sliding plate (26), one end of the sliding plate (26) is fixedly connected to a second movable pull rope (29), one end of the second movable pull rope (29) passes through the tubular container (11) and the arc cover (12) in sequence and is fixedly connected to the large winding drum (20).

9. The device for purifying ozone and recovering oxygen according to claim 7, characterized in that: A solenoid valve (22) is installed at the bottom of the flow guide tube (15), and a ventilation pipe (221) is fixedly connected to one side of the flow guide tube (15) and located above the solenoid valve (22), and one end of the ventilation pipe (221) extends to the interior of the tubular container (11).

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