阅读说明：本技术 一种基于热催化氧化法的除醛空气净化器 (Remove aldehyde air purifier based on thermal catalytic oxidation method ) 是由 祝起胜 于 2021-07-23 设计创作，主要内容包括：本发明适用于除醛空气净化设备技术领域,提供了一种基于热催化氧化法的除醛空气净化器,包括净化器,所述净化器内安装有净化箱,还包括：驱动元件,所述驱动元件用于对排水机构和更换机构提供动力驱动；加热机构,所述加热机构用于对催化剂放置箱内的催化剂进行加热处理；以及更换机构,所述更换机构包括安装座、齿条、转动组件、转杆组件和催化剂放置箱。本发明中的基于热催化氧化法的除醛空气净化器通过驱动元件同时带动排水机构和更换机构对净化箱内产生的水进行排放和对催化剂进行更换,这样的设置提高了除醛空气净化器的使用寿命,保证了除醛空气净化器对空气的除醛净化效果,节约了资源。(The invention is suitable for the technical field of aldehyde-removing air purification equipment, and provides an aldehyde-removing air purifier based on a thermal catalytic oxidation method, which comprises a purifier, wherein a purifying box is arranged in the purifier, and the aldehyde-removing air purifier also comprises: the driving element is used for providing power drive for the drainage mechanism and the replacement mechanism; the heating mechanism is used for heating the catalyst in the catalyst placing box; and the replacing mechanism comprises a mounting seat, a rack, a rotating assembly, a rotating rod assembly and a catalyst placing box. According to the aldehyde-removing air purifier based on the thermal catalytic oxidation method, the driving element drives the drainage mechanism and the replacing mechanism to discharge water generated in the purifying box and replace the catalyst, so that the service life of the aldehyde-removing air purifier is prolonged, the aldehyde-removing purifying effect of the aldehyde-removing air purifier on air is ensured, and resources are saved.)

1. The utility model provides a remove aldehyde air purifier based on thermal catalytic oxidation method, includes the clarifier, install the purifying box in the clarifier, the inner wall fixed connection of air intake and air outlet and clarifier is passed through respectively at the both ends of purifying box, its characterized in that still includes:

a drive element for providing powered drive to the replacement mechanism;

the heating mechanism is respectively arranged in the purifier and the purifying box and is used for heating the catalyst in the catalyst placing box; and

change the mechanism, it places the case including mount pad, rack, runner assembly, bull stick subassembly and catalyst to change the mechanism, mount pad fixed mounting is on the one end lateral wall of purifying box, rack movable mounting is on the mount pad, the runner assembly is installed on the mount pad, the runner assembly is connected with rack toothing, just the one end of runner assembly is connected with drive element's output, the case is placed to the catalyst rotates with the runner assembly through the bull stick subassembly and is connected, drive element drives the runner assembly and rotates on the rack, and the mode that the runner assembly passed in and out through driving the bull stick subassembly in changing the incasement has realized that the catalyst places the case business turn over in changing the incasement and has removed.

2. The air purifier based on the thermocatalytic oxidation method for removing aldehyde according to claim 1, wherein the rotating assembly comprises a fixed seat, a gear and a rotating shaft, the gear is sleeved on the rotating shaft, the gear is meshed with a rack, the rotating shaft is movably installed in the fixed seat, the rotating rod assembly comprises a first rotating piece and a second rotating piece, the first rotating piece and the second rotating piece are rotatably connected, and the other ends of the first rotating piece and the second rotating piece are respectively rotatably connected with the catalyst placing box and the rotating shaft.

3. The air purifier based on the thermocatalytic oxidation method for removing aldehyde is characterized in that one end of the purifying box is connected with a drainage mechanism, one end of the drainage mechanism is connected with a driving element, the driving element is used for providing power for the drainage mechanism, and the drainage mechanism is used for discharging water in the purifying box.

4. The air purifier based on the thermocatalytic oxidation method for removing aldehyde is characterized in that the drainage mechanism comprises a crank, a rotating handle, a sleeve, a drainage pipe and a rotating piece, wherein two ends of the crank are respectively movably connected with the output end of the driving element and the rotating handle, the drainage pipe penetrates through the sleeve and is respectively connected with the purifying box and the water tank, the rotating piece is movably arranged in the sleeve, one end of the rotating piece is fixedly connected with the rotating handle, and a through hole is formed in the rotating piece.

5. The air purifier based on the thermocatalytic oxidation method for removing aldehyde is characterized in that the heating mechanism comprises a heating pipe, a water tank and a heater, the heating pipe is spirally arranged in the purifying tank in a penetrating mode and is connected with a water pump and the water tank, and the heater is fixedly arranged in the water tank.

6. The air purifier based on the thermocatalytic oxidation method for removing aldehyde is characterized in that fan components are installed in the air inlet and the air outlet, each fan component comprises a power element and a fan blade, the fan blades are connected with the output end of the power element, and the fan components are used for accelerating the circulation of air.

7. The air purifier based on the thermocatalytic oxidation method for removing aldehyde is characterized in that two ends of the purifying box are provided with circulating mechanisms, two ends of each circulating mechanism are respectively connected with the exhaust pipe and the purifying box in a penetrating manner, and each circulating mechanism is used for circularly purifying air which does not reach the aldehyde removal standard.

8. The air purifier for removing aldehyde based on the thermocatalytic oxidation method as claimed in claim 7, wherein the circulating mechanism comprises an air inlet pipe, a circulating element and a first control valve, the air inlet pipe is respectively connected with the exhaust pipe and the purifying box in a penetrating manner, and the circulating element and the first control valve are fixedly mounted on the air inlet pipe.

9. The aldehyde-removing air purifier based on the thermocatalytic oxidation method as claimed in claim 7, wherein two ends of the exhaust pipe are respectively connected with the purification box and the air outlet in a penetrating manner, the exhaust pipe is provided with a second control valve, and a detector is arranged in the exhaust pipe and used for detecting purified air.

10. The aldehyde-removing air purifier based on the thermocatalytic oxidation method as claimed in claim 1, wherein the replacement box is provided with a placing groove, and the placing groove is matched with the catalyst placing box for use.

Technical Field

The invention belongs to the technical field of aldehyde-removing air purification equipment, and particularly relates to an aldehyde-removing air purifier based on a thermal catalytic oxidation method.

Background

The air purifier is also called as an air cleaner, an air freshener and a purifier, and is a product capable of adsorbing, decomposing or converting various air pollutants and effectively improving the air cleanliness. The existing air purification technology comprises an adsorption technology, a negative ion technology, a catalysis technology, a photocatalyst technology, a superstructure light mineralization technology, a HEPA high-efficiency filtration technology, an electrostatic dust collection technology and the like; the formaldehyde removal method mainly adopts methods such as activated carbon adsorption, photocatalytic oxidation and thermal catalytic oxidation, wherein the thermal catalytic oxidation is one of the methods widely applied in the market.

The existing aldehyde-removing air purifier based on a thermal catalytic oxidation method adopts the method that a catalyst is directly adsorbed on the surface of a heating copper pipe, and the catalyst is heated through the copper pipe to be subjected to oxidation reaction with aldehyde-containing air; such setting up makes the installation stability of catalyst relatively poor, and the catalyst can't be changed, has reduced the aldehyde effect that removes of removing aldehyde air purifier, has influenced the normal use that removes aldehyde air purifier.

Therefore, in view of the above situation, there is an urgent need to develop an aldehyde-removing air purifier based on a thermal catalytic oxidation method to overcome the disadvantages in the current practical application.

Disclosure of Invention

Aiming at the defects in the prior art, the embodiment of the invention aims to provide an aldehyde-removing air purifier based on a thermal catalytic oxidation method, so as to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a remove aldehyde air purifier based on thermal catalytic oxidation method, includes the clarifier, install the purifying box in the clarifier, the inner wall fixed connection of air intake and air outlet and clarifier is passed through respectively at the both ends of purifying box still includes:

a drive element for providing powered drive to the replacement mechanism;

the heating mechanism is respectively arranged in the purifier and the purifying box and is used for heating the catalyst in the catalyst placing box; and

change the mechanism, it places the case including mount pad, rack, runner assembly, bull stick subassembly and catalyst to change the mechanism, mount pad fixed mounting is on the one end lateral wall of purifying box, rack movable mounting is on the mount pad, the runner assembly is installed on the mount pad, the runner assembly is connected with rack toothing, just the one end of runner assembly is connected with drive element's output, the case is placed to the catalyst rotates with the runner assembly through the bull stick subassembly and is connected, drive element drives the runner assembly and rotates on the rack, and the mode that the runner assembly passed in and out through driving the bull stick subassembly in changing the incasement has realized that the catalyst places the case business turn over in changing the incasement and has removed.

As a further technical scheme of the invention, the rotating assembly comprises a fixed seat, a gear and a rotating shaft, the gear is sleeved on the rotating shaft and is meshed with the rack, the rotating shaft is movably installed in the fixed seat, the rotating rod assembly comprises a first rotating piece and a second rotating piece, the first rotating piece is rotatably connected with the second rotating piece, and the other ends of the first rotating piece and the second rotating piece are respectively rotatably connected with the catalyst placing box and the rotating shaft.

As a further technical solution of the present invention, one end of the purification box is connected to a drainage mechanism, one end of the drainage mechanism is connected to a driving element, the driving element is used for providing power to the drainage mechanism for driving, and the drainage mechanism is used for discharging water in the purification box.

As a further technical scheme, the drainage mechanism comprises a crank, a rotating handle, a sleeve, a drainage pipe and a rotating piece, wherein two ends of the crank are respectively movably connected with the output end of the driving element and the rotating handle, the drainage pipe penetrates through the sleeve and is respectively connected with the purification box and the water tank, the rotating piece is movably arranged in the sleeve, one end of the rotating piece is fixedly connected with the rotating handle, and a through hole is formed in the rotating piece.

As a further technical scheme, the heating mechanism comprises a heating pipe, a water tank and a heater, the heating pipe is spirally arranged in the purification tank in a penetrating mode, the heating pipe is connected with the water pump and the water tank, and the heater is fixedly arranged in the water tank.

As a further technical scheme of the present invention, fan assemblies are installed in the air inlet and the air outlet, each fan assembly includes a power element and a fan blade, the fan blade is connected with an output end of the power element, and the fan assembly is used for accelerating air circulation.

As a further technical scheme, two ends of the purification box are provided with circulating mechanisms, two ends of each circulating mechanism are respectively connected with the exhaust pipe and the purification box in a penetrating manner, and the circulating mechanisms are used for circularly purifying air which does not reach the standard after aldehyde removal.

As a further technical scheme of the invention, the circulating mechanism comprises an air inlet pipe, a circulating element and a first control valve, the air inlet pipe is respectively connected with the exhaust pipe and the purification box in a penetrating manner, and the circulating element and the first control valve are fixedly arranged on the air inlet pipe.

As a further technical scheme, two ends of the exhaust pipe are respectively connected with the purification box and the air outlet in a penetrating mode, the exhaust pipe is provided with a second control valve, and a detector is arranged in the exhaust pipe and used for detecting purified air.

As a further technical scheme of the invention, the replacing box is provided with a placing groove, and the placing groove is matched with the catalyst placing box for use.

Compared with the prior art, the invention has the beneficial effects that:

the invention can provide power source for the drainage mechanism and the replacing mechanism simultaneously through the driving element, and can realize the replacement of the catalyst and the discharge of the water generated in the purifying box simultaneously;

the driving element drives the crank to eccentrically rotate at the output end of the driving element, the crank is connected with the rotating handle in a rotating manner, the rotating handle is driven by the rotation of the crank to swing left and right on the sleeve, so that the rotating piece rotates left and right in the sleeve, the through hole on the rotating piece is correspondingly matched with the drain pipe, water in the purifying box is discharged into the water tank through the drain pipe and is used for the heating mechanism, the practicability and the service life of the aldehyde-removing air purifier are improved, and resources are saved;

be provided with four sets of runner assemblies and four sets of bull stick subassemblies on the mount pad, output through drive element is connected with one of them set of runner assembly, the drive through drive element has driven the runner assembly who is connected and has rotated, it is connected with the meshing of gear through the runner assembly, the rack has been driven indirectly and has been rotated on the mount pad, thereby the runner assembly who has driven other three sets of rotates, be connected with the rotation of bull stick subassembly through the runner assembly, the rotation of runner assembly has driven the bull stick subassembly and has gone into and out the rotation in the change case, the business turn over removal of case in the change case is placed to the catalyst has been realized, be convenient for place the catalyst of incasement to the catalyst and change the processing, such setting has improved except that aldehyde air purifier's life, the purification effect that removes aldehyde air purifier to the air has been guaranteed.

To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Drawings

Fig. 1 is a structural plan view of an aldehyde-removing air purifier based on a thermal catalytic oxidation method according to an embodiment of the present invention.

Fig. 2 is a structural sectional view of a-a in fig. 1.

Fig. 3 is a structural side view of an aldehyde-removing air purifier based on a thermal catalytic oxidation method according to an embodiment of the present invention.

Fig. 4 is a schematic view of the drain pipe and the sleeve of fig. 3.

Fig. 5 is a schematic structural view of the rotating member in fig. 3.

Reference numerals: 1-purifier, 2-purification box, 3-air intake, 4-air outlet, 5-heating mechanism, 51-water pump, 52-heating pipe, 53-water tank, 54-heater, 6-fan assembly, 61-power element, 62-fan blade, 7-circulation mechanism, 71-air intake, 72-circulation element, 73-first control valve, 8-detector, 9-exhaust pipe, 91-second control valve, 10-driving element, 101-bracket, 11-drainage mechanism, 111-crank, 112-rotating handle, 113-sleeve, 114-drainage pipe, 115-rotating member, 1151-through hole, 12-replacement mechanism, 121-mounting seat, 122-rack, 123-rotating assembly, 1231-fixing seat, 1232-gear, 1233-rotating shaft, 124-rotating rod assembly, 1241-first rotating member, 1242-second rotating member, 125-catalyst placement box, 13-replacement box, 131-placement tank.

Detailed Description

In the description of the present invention, it is to be understood that the terms "longitudinal," "lateral," "upper," "lower," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

As shown in fig. 1 to 3, an aldehyde-removing air purifier based on a thermal catalytic oxidation method according to an embodiment of the present invention includes a purifier 1, a purifying box 2 is installed in the purifier 1, two ends of the purifying box 2 are respectively fixedly connected to an inner wall of the purifier 1 through an air inlet 3 and an air outlet 4, and the aldehyde-removing air purifier further includes:

a driving element 10, wherein the driving element 10 is fixedly arranged on one side inner wall of the purifier 1 through a bracket 101, and the driving element 10 is used for providing power drive for the replacing mechanism 12;

the heating mechanism 5, the heating mechanism 5 is respectively installed in the purifier 1 and the purifying box 2, the heating mechanism 5 is used for heating the catalyst in the catalyst placing box 125; and

change mechanism 12, it includes that mount pad 121, rack 122, runner assembly 123, bull stick subassembly 124 and catalyst place case 125 to change mechanism 12, mount pad 121 fixed mounting is on the one end lateral wall of purifying box 2, rack 122 movable mounting is on mount pad 121, runner assembly 123 installs on mount pad 121, runner assembly 123 is connected with the rack 122 meshing, just the one end of runner assembly 123 is connected with drive element 10's output, the catalyst is placed case 125 and is rotated with runner assembly 123 through bull stick subassembly 124 and is connected, drive element 10 drives runner assembly 123 and rotates on rack 122, and runner assembly 123 has realized the catalyst through the mode that drives the business turn over of bull stick subassembly 124 in changing case 13 and has placed the business turn over of case 125 in changing case 13 and move.

In this embodiment, drive change mechanism 12 through drive element 10 and change the catalyst, such setting has improved the life of removing aldehyde air purifier, has guaranteed the aldehyde purifying effect that removes of removing aldehyde air purifier to the air, has practiced thrift the waste of resource.

In a preferred embodiment, the driving element 10 of the present invention is a motor for driving the replacing mechanism 12, and other driving elements 10 capable of providing power for the replacing mechanism 12 can be used.

As shown in fig. 2 and 3, as a preferred embodiment of the present invention, the rotating assembly 123 includes a fixed base 1231, a gear 1232 and a rotating shaft 1233, the gear 1232 is sleeved on the rotating shaft 1233, the gear 1232 is engaged with the rack 122, the rotating shaft 1233 is movably installed in the fixed base 1231, the rotating rod assembly 124 includes a first rotating member 1241 and a second rotating member 1242, the first rotating member 1241 and the second rotating member 1242 are rotatably connected, and the other ends of the first rotating member 1241 and the second rotating member 1242 are rotatably connected to the catalyst holding box 125 and the rotating shaft 1233, respectively.

In this embodiment, the mounting seat 121 of the replacing mechanism 12 is provided with four sets of rotating assemblies 123 and four sets of rotating rod assemblies 124, which are connected with one set of rotating assemblies 123 through the output end of the driving element 10, the driving element 10 drives the connected rotating component 123 to rotate, and the rack 122 is indirectly driven to rotate on the mounting seat 121 through the meshed connection between the rotating component 123 and the rack 122, thereby driving the other three groups of rotating assemblies 123 to rotate, and the rotating assemblies 123 are rotationally connected with the rotating rod assembly 124, the rotating assembly 123 rotates to drive the rotating rod assembly 124 to rotate in and out of the replacing box 13, thereby realizing the movement of the catalyst placing box 125 in and out of the replacing box 13, facilitating the replacement of the catalyst in the catalyst placing box 125, such setting up has improved the life who removes aldehyde air purifier, has guaranteed the aldehyde purifying effect that removes of removing aldehyde air purifier to the air.

In a preferred embodiment, the rotating assembly 123 of the present invention employs a gear 1232 and a rotating shaft 1233, and the gear 1232 is engaged with the rack 122, so that the rack 122 can move on the mounting seat 121 to drive the other rotating assemblies 123 to rotate, and the rotating shaft 1233 is rotationally connected with the rotating rod assembly 124 to drive the first rotating member 1241 and the second rotating member 1242 in the rotating rod assembly 124 to rotate, thereby realizing the movement of the catalyst containing box 125 in and out of the replacing box 13;

the first rotating member 1241 and the second rotating member 1242 of the rotating rod assembly 124 are preferably a rotating rod structure, and may also be replaced by threaded shafts, and the threaded shafts are engaged with the rack 122, so that the rack 122 rotates to drive the threaded shafts to rotate, and the catalyst containing box 125 is in threaded connection with the threaded shafts, so that the catalyst containing box 125 moves under the rotation of the threaded shafts, and the catalyst containing box 125 moves in and out of the replacing box 13.

As shown in fig. 2 to 5, as a preferred embodiment of the present invention, a drainage mechanism 11 is connected to one end of the purification box 2, one end of the drainage mechanism 11 is connected to a driving element 10, the driving element 10 is used for providing power drive to the drainage mechanism 11, and the drainage mechanism 11 is used for draining water in the purification box 2.

As shown in fig. 2 to 5, as a preferred embodiment of the present invention, the drainage mechanism 11 includes a crank 111, a rotating handle 112, a sleeve 113, a drainage pipe 114 and a rotating member 115, two ends of the crank 111 are movably connected to the output end of the driving element 10 and the rotating handle 112, respectively, the drainage pipe 114 penetrates the sleeve 113 and is respectively connected to the purification box 2 and the water tank 53, the rotating member 115 is movably installed in the sleeve 113, one end of the rotating member 115 is fixedly connected to the rotating handle 112, and a through hole 1151 is opened on the rotating member 115.

In this embodiment, drive crank 111 through drive element 10 and carry out eccentric rotation at drive element 10's output, be connected with the rotation of changeing 112 through crank 111, crank 111's rotation has driven to change 112 and has carried out the horizontal hunting on sleeve 113, make change 115 rotate about in sleeve 113, realized changing through-hole 1151 on 115 and the corresponding cooperation of drain pipe 114, be convenient for the water in purifying box 2 discharges in water tank 53 through drain pipe 114, be used for heating mechanism 5 to carry out cyclic use, such setting has improved the practicality and the life of aldehyde air purifier, the waste of resource has been practiced thrift.

In a preferred embodiment, the rotating member 115 is a solid round bar structure, and a through hole 1151 with the same specification and size as the drain pipe 114 is formed on the surface of the rotating member, and the through hole 1151 is used in cooperation with the drain pipe 114.

As shown in fig. 1 to 3, as a preferred embodiment of the present invention, the heating mechanism 5 includes a heating pipe 52, a water tank 53 and a heater 54, the heating pipe 52 is spirally installed in the purifying tank 2, the heating pipe 52 is connected to the water pump 51 and the water tank 53, and the heater 54 is fixedly installed in the water tank 53.

In this embodiment, the water in the water tank 53 is heated by the heater 54 to reach the temperature required for catalytic oxidation of the catalyst, and the heated water is circulated in the heating pipe 52 by the circulation of the water pump 51, wherein the heating pipe 52 is a spiral copper pipe, and the catalyst accommodating tank 125 is arranged in the heating pipe 52 to accelerate the thermal catalytic oxidation of the catalyst and the air.

In a preferred embodiment, the heating mechanism 5 can also directly perform the thermal catalytic oxidation on the catalyst in the catalyst placing box 125 by using the heater 54, and the heater 54 can heat the water in the water tank 53 by using a resistance wire or heat the water in the water tank 53 by using a heat generating sheet.

As shown in fig. 1 and 3, as a preferred embodiment of the present invention, a fan assembly 6 is installed in the air inlet 3 and the air outlet 4, the fan assembly 6 includes a power element 61 and fan blades 62, the fan blades 62 are connected to an output end of the power element 61, and the fan assembly 6 is used for accelerating air circulation.

In this embodiment, power element 61 may be a driving motor to provide a source of rotational power for fan blades 62.

As shown in fig. 1 and 2, as a preferred embodiment of the present invention, circulation mechanisms 7 are installed at two ends of the purification box 2, two ends of the circulation mechanisms 7 are respectively connected with the exhaust pipe 9 and the purification box 2 in a penetrating manner, and the circulation mechanisms 7 are used for circularly purifying air which does not reach the standard of aldehyde removal.

As shown in fig. 1 and 2, as a preferred embodiment of the present invention, the circulation mechanism 7 includes an intake pipe 71, a circulation element 72, and a first control valve 73, the intake pipe 71 is respectively connected to the exhaust pipe 9 and the purification tank 2 in a penetrating manner, and the circulation element 72 and the first control valve 73 are fixedly mounted on the intake pipe 71.

As shown in fig. 1 and 3, as a preferred embodiment of the present invention, two ends of the exhaust pipe 9 are respectively connected to the purification box 2 and the air outlet 4 in a penetrating manner, a second control valve 91 is installed on the exhaust pipe 9, a detector 8 is installed in the exhaust pipe 9, and the detector 8 is used for detecting purified air.

In this embodiment, after the purified air after thermal catalytic oxidation enters the exhaust pipe 9 and is detected by the detector 8, the air reaching the standard enters the air outlet 4 and is discharged out of the purifier 1 by opening the second control valve 91; when the air detected by the detector 8 does not reach the aldehyde removing standard, the gas which does not reach the standard is circularly purified by opening the first control valve 73 and the circulating element 72 until the gas reaches the standard and is discharged out of the purifier 1 through the air outlet 4.

In a preferred embodiment, the circulating element 72 is a blower, or a vacuum suction machine can be used for sucking the air which does not reach the standard, and the sucked air is intensively discharged into the purifying box 2 for circulating purification; the detector 8 is an instrument for detecting the content of aldehyde in the air.

As shown in fig. 3, as a preferred embodiment of the present invention, the replacement box 13 is provided with a placement groove 131, and the placement groove 131 is used in cooperation with the catalyst placement box 125.

The working principle of the invention is as follows:

the water in the water tank is heated by the heater 54 to reach the temperature required by catalytic oxidation of the catalyst, the heated water circulates in the heating pipe 52 by the circulation of the water pump 51, the heating pipe 52 is a spiral copper pipe, the catalyst placing box 125 is placed in the heating pipe 52, and the thermal catalytic oxidation of the catalyst and the air is accelerated;

when the catalyst needs to be replaced, the mounting seat 121 of the replacing mechanism 12 is provided with four sets of rotating assemblies 123 and four sets of rotating rod assemblies 124, the rotating assemblies 123 are connected with one set of rotating assemblies 123 through the output end of the driving element 10, the rotating assemblies 123 connected with each other are driven to rotate through the driving of the driving element 10, the rack 122 is indirectly driven to rotate on the mounting seat 121 through the meshed connection of the rotating assemblies 123 and the rack 122, so that the other three sets of rotating assemblies 123 are driven to rotate, and the rotating assemblies 123 are rotationally connected with the rotating rod assemblies 124, so that the rotating rod assemblies 124 are driven to rotate in and out of the replacing box 13 through the rotation of the rotating assemblies 123, the catalyst placing box 125 moves in and out of the replacing box 13, and the catalyst in the catalyst placing box 125 is conveniently replaced;

when the water generated by catalytic oxidation in the purifying box 2 needs to be discharged for use; the crank 111 is driven by the driving element 10 to eccentrically rotate at the output end of the driving element 10 and is rotationally connected with the rotating handle 112 through the crank 111, the rotating handle 112 is driven by the rotation of the crank 111 to swing left and right on the sleeve 113, so that the rotating piece 115 rotates left and right in the sleeve 113, the through hole 1151 on the rotating piece 115 is correspondingly matched with the drainage pipe 114, and the water in the purifying box 2 is discharged into the water tank 53 through the drainage pipe 114 and is used for recycling of the heating mechanism 5;

after the purified air subjected to thermal catalytic oxidation enters the exhaust pipe 9 and is detected by the detector 8, the air reaching the standard enters the air outlet 4 and is discharged out of the purifier 1 by opening the second control valve 91; when the air detected by the detector 8 does not reach the aldehyde removing standard, the gas which does not reach the standard is circularly purified by opening the first control valve 73 and the circulating element 72 until the gas reaches the standard and is discharged out of the purifier 1 through the air outlet 4;

the working principle of the aldehyde-removing air purifier based on the thermal catalytic oxidation method is as described above.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.