Oil fume purification device and white ink pyrography equipment

Abstract

The utility model discloses a lampblack purification device and white ink pyrography equipment, and belongs to the technical field of white ink pyrography printing, the lampblack purification device comprises a cooling part and a separation part, the cooling part comprises a cooling pipeline and a blower, and the cooling pipeline is provided with a smoke inlet and a smoke outlet; the air blowers are arranged on the peripheral side of the cooling pipeline and used for generating airflow to reduce the temperature of oil smoke in the cooling pipeline; the separation part is provided with a centrifugal fan set and an exhaust fan, one end of the centrifugal fan set is connected with the smoke outlet, the other end of the centrifugal fan set is connected with the exhaust fan, and the centrifugal fan set is used for separating the oil smoke and feeding the separated smoke into the exhaust fan; and the exhaust fan is used for outputting the flue gas to the outside. The oil fume purification device solves the problem that the environment is polluted due to the fact that oil fume is directly discharged in the white ink pyrography printing process, effectively purifies the oil fume, lowers the temperature of the oil fume, reduces emission of harmful substances, and is beneficial to achieving a more comfortable and safer working environment.

Description

TECHNICAL FIELD

[0001] The utility model belongs to white ink iron picture printing technical field, especially relates to an oil fume purification device and white ink iron picture equipment. BACKGROUND

[0002] In the white ink iron picture printing process, in order to dry the ink on the printing medium, the white ink iron picture equipment is generally used to heat the printing medium at high temperature, and oil fume is generally generated during the heating process. Since the oil fume has a high temperature and an odor, directly discharging the oil fume will pollute the surrounding environment, making the working environment hot and affecting the safety of the workers.

[0003] Therefore, the prior art needs to be improved and developed. INVENTION CONTENTS

[0004] The utility model discloses an oil fume purification device and white ink iron picture equipment, which solves the problem of environmental pollution caused by directly discharging oil fume in the white ink iron picture printing process, effectively purifies the oil fume, reduces the temperature of the oil fume and the emission of harmful substances, and is conducive to realizing a more comfortable and safer working environment.

[0005] In a first aspect, the utility model provides an oil fume purification device, which comprises:

[0006] A cooling part, which comprises a cooling pipeline and a blower, the cooling pipeline is provided with an inlet and an outlet, the inlet is used for allowing external oil fume to enter the cooling pipeline, and the blower is arranged on the side of the cooling pipeline and is used for generating airflow to reduce the temperature of the oil fume in the cooling pipeline.

[0007] A separation part, which is provided with a centrifugal fan group and an exhaust fan, one end of the centrifugal fan group is connected with the outlet, and the other end is connected with the exhaust fan, the centrifugal fan group is used for separating the oil fume and sending the separated flue gas into the exhaust fan, and the exhaust fan is used for outputting the flue gas to the outside.

[0008] The oil fume purification device provided by the utility model reduces the temperature and purifies the high-temperature oil fume, avoids the pollution of the discharged gas to the surrounding environment, and is conducive to realizing a more comfortable and safer working environment.

[0009] Further, the centrifugal fan group comprises a plurality of centrifugal fans, all the centrifugal fans are arranged in a cascade manner and are sequentially connected in series so that all the centrifugal fans cooperate to separate the oil fume multiple times.

[0010] Through the cascade arrangement and sequential connection of the plurality of centrifugal fans, the oil fume is separated multiple times.

[0011] Furthermore, the centrifugal fan unit also includes a circulating fan connected between the first-stage centrifugal fan and the last-stage centrifugal fan so that the circulating fan is used to circulate oil fumes into the centrifugal fan unit.

[0012] Through the action of the circulating fan, the oil fumes can circulate multiple times in the centrifugal fan unit, thereby improving the oil fume separation efficiency.

[0013] Furthermore, a fiberglass filter element is provided between the centrifugal fan unit and the exhaust fan.

[0014] Furthermore, a carbon fiber filter element is provided between the centrifugal fan unit and the exhaust fan.

[0015] Furthermore, a glass fiber filter and a carbon fiber filter are sequentially arranged between the centrifugal fan unit and the exhaust fan.

[0016] By incorporating glass fiber and carbon fiber filters, the filtration efficiency and purification effect of the fume purification device are significantly improved.

[0017] Furthermore, the cooling duct is located above the hair dryer, and the airflow generated by the hair dryer blows upwards toward the cooling duct.

[0018] Furthermore, the cooling unit includes a first frame, the cooling pipe and the blower are both installed in the first frame, and the first frame has heat dissipation holes on the side above the cooling pipe.

[0019] Furthermore, the separation section includes a second frame, on which both the centrifugal fan unit and the exhaust fan are mounted, and an oil chamber is provided on the side of the second frame located below the centrifugal fan unit, with the bottom surface of the oil chamber inclined relative to the horizontal plane.

[0020] Secondly, this utility model provides a white ink heat transfer printing device, including the aforementioned oil fume purification device.

[0021] As can be seen from the above, the oil fume purification device of this utility model cools and lowers the temperature of high-temperature oil fumes through the cooling section and removes impurities from the oil fumes through the separation section, thereby reducing the pollution level of the exhaust gas to the surrounding environment, making the working environment more comfortable and better ensuring the safety of the workers.

[0022] Other features and advantages of this invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing embodiments of the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of an oil fume purification device provided in an embodiment of the present invention from one perspective.

[0024] Figure 2 This is a schematic diagram of the structure of an oil fume purification device provided in an embodiment of the present utility model from another perspective.

[0025] Figure 3 This is a partial cross-sectional view of the separation section in an embodiment of this utility model.

[0026] Label Explanation:

[0027] 100 Cooling pipe; 110 Smoke inlet; 120 Smoke outlet; 200 Blower; 300 Exhaust fan; 400 Centrifugal fan; 500 Circulating fan; 600 First frame; 610 Heat dissipation hole; 700 Second frame; 710 Oil chamber. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0033] Reference Appendix Figure 1 and attached Figure 2 This utility model provides an oil fume purification device, comprising:

[0034] The cooling section includes a cooling pipe 100 and a blower 200. The cooling pipe 100 is provided with a smoke inlet 110 and a smoke outlet 120. The smoke inlet 110 is used to allow external oil fumes to enter the cooling pipe 100. The blower 200 is located around the cooling pipe 100 and is used to generate airflow to reduce the temperature of the oil fumes inside the cooling pipe 100.

[0035] The separation section is equipped with a centrifugal fan unit and an exhaust fan 300. One end of the centrifugal fan unit is connected to the smoke outlet 120 and the other end is connected to the exhaust fan 300. The centrifugal fan unit is used to separate the oil fumes and send the separated fumes into the exhaust fan 300; the exhaust fan 300 is used to output the fumes to the outside.

[0036] In this embodiment, the cooling duct can adopt a spiral design to increase the residence time of oil fumes within the duct, thereby improving the cooling effect. The blower can be set to adjustable wind speed to adapt to the cooling requirements of different amounts of oil fumes. The centrifugal fan unit can include multiple centrifugal fans, which can be arranged in a stepped manner and connected in series to achieve multi-stage separation of oil fumes. The exhaust fan can be equipped with frequency converter control to adjust the exhaust volume according to actual needs.

[0037] This technical solution effectively solves the technical problems of excessively high oil fume temperature and difficulty in effective separation during the oil fume purification process by coordinating the cooling and separation sections. The cooling section, through the cooperation of cooling pipes and blowers, significantly reduces the temperature of the oil fumes, minimizing damage to subsequent processing equipment and preventing heat from being directly conducted into the working environment, thus avoiding a stuffy working environment. The separation section, through the cooperation of centrifugal fans and exhaust fans, achieves effective separation and emission of oil fumes. Compared with existing technologies, this solution not only improves the cooling efficiency of oil fumes but also enhances the separation effect, thereby improving the overall oil fume purification efficiency.

[0038] In some embodiments, reference is made to the appendix. Figure 1 and attached Figure 2 The centrifugal fan unit includes multiple centrifugal fans 400. All centrifugal fans 400 are arranged in a ladder manner and connected in series so that all centrifugal fans 400 work together to separate oil fumes multiple times.

[0039] In this embodiment, the tiered arrangement of centrifugal fans refers to multiple centrifugal fans arranged in a certain order and spacing to form a multi-stage separation system. Each centrifugal fan in the tiered arrangement plays a role in progressively separating oil fumes, with the oil fumes separated by the previous stage centrifugal fan entering the next stage centrifugal fan for further separation. This arrangement allows the oil fumes to be separated multiple times as they pass through the centrifugal fan unit, thereby improving the oil fume separation efficiency. Specifically, the tiered arrangement can be achieved by adjusting the spacing and angle between the centrifugal fans. For example, the spacing between the centrifugal fans can be adjusted according to the concentration and flow rate of the oil fumes to ensure that each stage of the centrifugal fan can effectively separate the oil fumes.

[0040] In a preferred embodiment, the centrifugal fans can be arranged in either a horizontal or vertical tiered configuration. In a horizontal tiered arrangement, the centrifugal fans are arranged sequentially on the same horizontal plane, allowing the fumes to be separated horizontally through each stage of the centrifugal fan. In a vertical tiered arrangement, the centrifugal fans are arranged sequentially vertically, allowing the fumes to be separated vertically through each stage of the centrifugal fan. Furthermore, the centrifugal fans can be connected via ductwork or directly to ensure that the fumes can pass smoothly through each stage of the centrifugal fan.

[0041] Therefore, this application achieves multiple separations of oil fumes through a tiered arrangement and sequential connection of multiple centrifugal fans. This arrangement allows the oil fumes to be separated multiple times as they pass through the centrifugal fan unit, thereby improving the separation efficiency. Each centrifugal fan plays a role in progressively separating the oil fumes in the tiered arrangement, and ultimately, through the coordinated work of multiple centrifugal fans, a highly efficient oil fume separation effect is achieved. Compared with the prior art, the technical solution of this application significantly improves the oil fume separation efficiency through multiple separations, solving the problem of low oil fume separation efficiency in the prior art.

[0042] In some embodiments, reference is made to the appendix. Figure 2 The centrifugal fan unit also includes a circulating fan 500, which is connected between the first-stage centrifugal fan 400 and the last-stage centrifugal fan 400 so that the circulating fan 500 is used to circulate oil fumes into the centrifugal fan unit.

[0043] In this embodiment, the introduction of a circulating fan can be achieved in several ways. For example, the circulating fan can be a standalone fan unit, with its inlet connected to the outlet of the last-stage centrifugal fan, and its outlet connected to the inlet of the first-stage centrifugal fan. Specifically, the circulating fan can be connected to the centrifugal fan unit through a piping system to ensure unobstructed circulation of the fumes. As a preferred embodiment, the airflow of the circulating fan can be adjusted according to the fume treatment requirements to optimize the separation effect. Furthermore, the installation location and connection method of the circulating fan can be adjusted according to the actual equipment layout to ensure its coordinated operation with the centrifugal fan unit.

[0044] By utilizing a circulating fan, the oil fumes can circulate multiple times within the centrifugal fan unit, thereby improving the oil fume separation efficiency. Specifically, the circulating fan reintroduces some of the initially separated oil fumes into the centrifugal fan unit, increasing the residence time of the oil fumes within the centrifugal fan and further enhancing the separation effect. Thus, the oil fume separation efficiency is significantly improved, solving the problem of insufficient oil fume separation efficiency in existing technologies. Compared with existing technologies, this application, by introducing a circulating fan, not only improves the oil fume separation efficiency but also reduces the amount of oil fume emitted, thereby improving the working environment.

[0045] In some embodiments, a fiberglass filter element is provided between the centrifugal fan unit and the exhaust fan 300.

[0046] Specifically, fiberglass filter elements can be implemented in several ways. For example, they can be designed with a multi-layered structure, with each layer having a different fiber density, to achieve graded filtration of impurities of different sizes. Furthermore, the surface of the fiberglass filter element can undergo special treatment, such as coating it with activated carbon or other adsorbent materials, to enhance its odor adsorption capacity. In addition, the shape and size of the fiberglass filter element can be optimized according to the space between the centrifugal fan unit and the exhaust fan to ensure a tight fit and effective filtration of flue gas.

[0047] The technical solution of this application solves the problem of residual minute impurities and odors in the flue gas after oil fume separation in oil fume purification devices by incorporating a glass fiber filter element. The filtration effect of the glass fiber filter element, used in conjunction with the centrifugal fan unit and exhaust fan, ensures that the oil fume, after being separated by the centrifugal fan unit, is further filtered by the glass fiber filter element, thus improving the purification effect. Compared with existing technologies, the technical solution of this application has higher filtration efficiency and a longer service life, significantly improving the performance of oil fume purification devices.

[0048] In some embodiments, a carbon fiber filter element is provided between the centrifugal fan unit and the exhaust fan 300.

[0049] A carbon fiber filter is a filtration device made of carbon fiber material, possessing high adsorption capacity and high-temperature resistance. Specifically, the carbon fiber filter can adsorb residual oil mist particles in the flue gas after oil fume separation through its porous structure, thereby further purifying the flue gas. As a preferred embodiment, the carbon fiber filter can be designed with a multi-layer structure to increase its adsorption area and filtration efficiency. Furthermore, the adsorption performance of the carbon fiber filter can be maintained through regular replacement or cleaning.

[0050] By incorporating a carbon fiber filter element, the technical solution of this application effectively solves the problem of residual oil mist after oil fume separation in oil fume purification devices. Specifically, the centrifugal fan unit first performs preliminary separation of the oil fume, separating most of the oil mist, while the residual oil mist is further adsorbed and removed by the carbon fiber filter element. Thus, the purification effect of the flue gas is significantly improved. Compared with existing technologies, the technical solution of this application not only improves the purification efficiency of oil fume but also reduces the pollution of the environment and equipment caused by oil mist.

[0051] In some embodiments, a glass fiber filter and a carbon fiber filter are sequentially arranged between the centrifugal fan unit and the exhaust fan 300.

[0052] Fiberglass filters are primarily used to filter impurities and odors from cooking fumes, while carbon fiber filters are used to adsorb residual oil mist. This dual filtration method effectively improves the separation of cooking fumes and reduces their environmental pollution.

[0053] Specifically, glass fiber filters can be made of high-density glass fiber material with a multi-layered pleated structure to increase filtration area and efficiency. Carbon fiber filters, on the other hand, can be made of activated carbon fiber material with a large number of microporous structures on their surface, effectively adsorbing oil mist particles and harmful gases from cooking fumes. As a preferred embodiment, glass fiber and carbon fiber filters can be installed in separate filter frames for easy disassembly and replacement.

[0054] Therefore, after initial separation by the centrifugal fan unit, the oil fumes are further filtered through a glass fiber filter to remove impurities and absorb odors, and then further filtered through a carbon fiber filter to remove residual oil mist. Finally, the purified air is discharged by the exhaust fan. This dual filtration method not only improves the separation effect of oil fumes but also reduces the pollution of oil fumes to the environment and improves the working environment. Compared with existing technologies, this application significantly improves the filtration efficiency and purification effect of the oil fume purification device by setting glass fiber and carbon fiber filters.

[0055] In some embodiments, reference is made to the appendix. Figure 2 The cooling pipe 100 is located above the blower 200, and the airflow generated by the blower 200 blows upward toward the cooling pipe 100.

[0056] The cooling duct has an inlet for allowing external oil fumes to enter, while the outlet connects to a centrifugal fan unit. A blower is positioned around the cooling duct to generate airflow and lower the temperature of the oil fumes inside.

[0057] Specifically, the cooling pipes are designed to be positioned above the blower, a layout that allows technicians easier access and repair when the blower malfunctions. Because of the blower's relatively low position, technicians can directly access and repair it without complex disassembly, thus reducing repair difficulty, increasing efficiency, and lowering costs.

[0058] Therefore, the technical solution of this application effectively solves the technical problem of convenient maintenance of the blower by optimizing the layout of the cooling pipes and the blower. Compared with the prior art, this solution improves the convenience of equipment maintenance while ensuring the efficient operation and long-term stability of the equipment.

[0059] In some embodiments, reference is made to the appendix. Figure 1The cooling unit includes a first frame 600, a cooling pipe 100 and a blower 200, all of which are installed inside the first frame 600. The first frame 600 has a heat dissipation hole 610 on the side above the cooling pipe 100.

[0060] Specifically, the design of the first frame allows the cooling ducts and blower to be fixed and stably installed inside, ensuring the stability of the equipment during operation. The first frame has ventilation holes on one side above the cooling ducts. These holes help dissipate the hot air that has absorbed heat from the cooling ducts, preventing heat buildup and overheating, thereby improving the equipment's operating efficiency and lifespan. Through this design, the cooling ducts and blower can more effectively cool the oil fumes while maintaining good heat dissipation performance, ensuring the overall performance of the oil fume purification device.

[0061] In a preferred embodiment, the first frame can be made of metal to enhance its structural strength and heat dissipation performance. The shape and size of the heat dissipation holes can be adjusted according to actual needs, such as using circular, square, or other shapes to optimize heat dissipation. Furthermore, a baffle plate can be installed inside the first frame to guide airflow more evenly through the cooling pipes, further improving cooling efficiency.

[0062] Therefore, the technical solution of this application effectively solves the installation and heat dissipation problems of cooling pipes and blowers in the fume purification device through the design of the first frame and heat dissipation holes. Compared with the prior art, this technical solution not only improves the stability and heat dissipation performance of the equipment, but also extends the service life of the equipment.

[0063] In some embodiments, reference is made to the appendix. Figure 3 The separation section includes a second frame 700, a centrifugal fan unit and an exhaust fan 300 are both installed on the second frame 700, and an oil chamber 710 is provided on the side of the second frame 700 located below the centrifugal fan unit. The bottom surface of the oil chamber 710 is inclined relative to the horizontal plane.

[0064] Specifically, the inclined design of the bottom surface of the oil chamber can be achieved in several ways. For example, the bottom surface of the oil chamber can be designed to be inclined on one side, allowing the oil to flow naturally to one side under gravity, facilitating centralized collection and discharge. As a preferred embodiment, the bottom surface of the oil chamber can be designed to be inclined on both sides, forming a V-shaped structure, further optimizing the flow path of the oil and preventing oil from stagnating at the bottom of the oil chamber. In addition, the inclination angle of the oil chamber can be adjusted according to actual needs, typically between 5° and 15°, to ensure that the oil can flow smoothly without affecting the normal operation of the equipment.

[0065] Therefore, this technical solution, by setting up a second frame, mounts the centrifugal fan unit and exhaust fan on the second frame, and sets up an inclined oil chamber below the centrifugal fan unit, allowing the separated oil to flow smoothly into the oil chamber and be discharged, preventing oil accumulation inside the equipment and ensuring its normal operation. This design not only improves the oil collection efficiency but also reduces the frequency and difficulty of equipment maintenance. Compared with existing technologies, this solution effectively solves the technical problem of oil accumulation through simple structural improvements.

[0066] This utility model provides a white ink heat transfer printing device, including the oil fume purification device in the above embodiment.

[0067] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0068] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. An oil fume purification device, characterized in that, include: The cooling unit includes a cooling pipe (100) and a blower (200). The cooling pipe (100) is provided with a smoke inlet (110) and a smoke outlet (120). The smoke inlet (110) is used to allow external oil fumes to enter the cooling pipe (100). The blower (200) is disposed around the cooling pipe (100) and is used to generate airflow to reduce the temperature of the oil fumes inside the cooling pipe (100). The separation section is equipped with a centrifugal fan unit and an exhaust fan (300). One end of the centrifugal fan unit is connected to the smoke outlet (120) and the other end is connected to the exhaust fan (300). The centrifugal fan unit is used to separate the oil fumes and send the separated fumes into the exhaust fan (300). The exhaust fan (300) is used to output the fumes to the outside.

2. The oil fume purification device according to claim 1, characterized in that, The centrifugal fan unit includes multiple centrifugal fans (400), all of which are arranged in a ladder-like manner and connected in series so that all of the centrifugal fans (400) cooperate to perform multiple separations of oil fumes.

3. The oil fume purification device according to claim 2, characterized in that, The centrifugal fan unit also includes a circulating fan (500) connected between the first-stage centrifugal fan (400) and the last-stage centrifugal fan (400) so that the circulating fan (500) is used to circulate oil fumes into the centrifugal fan unit.

4. The oil fume purification device according to claim 1, characterized in that, A fiberglass filter element is provided between the centrifugal fan unit and the exhaust fan (300).

5. The oil fume purification device according to claim 1, characterized in that, A carbon fiber filter element is provided between the centrifugal fan unit and the exhaust fan (300).

6. The oil fume purification device according to claim 1, characterized in that, A glass fiber filter and a carbon fiber filter are sequentially arranged between the centrifugal fan unit and the exhaust fan (300).

7. The oil fume purification device according to claim 1, characterized in that, The cooling pipe (100) is located above the blower (200), and the airflow generated by the blower (200) blows upward toward the cooling pipe (100).

8. The oil fume purification device according to claim 7, characterized in that, The cooling unit includes a first frame (600), the cooling pipe (100) and the blower (200) are both installed in the first frame (600), and the first frame (600) has a heat dissipation hole (610) on the side above the cooling pipe (100).

9. The oil fume purification device according to claim 1, characterized in that, The separation section includes a second frame (700), the centrifugal fan unit and the exhaust fan (300) are both mounted on the second frame (700), and the second frame (700) is provided with an oil chamber (710) on the side below the centrifugal fan unit. The bottom surface of the oil chamber (710) is inclined relative to the horizontal plane.

10. A white ink heat transfer printing device, characterized in that, Includes the fume purification device as described in any one of claims 1-9.

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