Condensation filter
By designing the condensation chamber and transition chamber structure of the condenser filter, the condensation and filtration of exhaust gas are integrated, solving the clogging problem caused by improper condensation and filtration points in exhaust gas treatment equipment, and improving the operating efficiency and service life of the equipment.
Patent Information
- Application Number
- CN202422906882.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-11-27
AI Technical Summary
In existing exhaust gas treatment equipment, improper connection between the condensation point and the filtration point leads to filter blockage, high operating resistance, and short service life.
A condenser filter is designed, comprising an outer condenser cylinder, an inner condenser cylinder, and a filter cylinder. Through the structural design of the condensation chamber and the transition chamber, the condensation and filtration of exhaust gas are integrated, avoiding the direct adsorption of large particulate impurities on the filter cylinder. An airflow guide ring assembly is used to optimize the airflow path.
It effectively reduces the content of large particulate impurities in exhaust gas, reduces filter cartridge clogging, lowers operating resistance, and extends the service life of the condenser filter.
Smart Images
Figure CN223716749U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to tail gas treatment technical field especially relates to a condensing filter. BACKGROUND
[0002] Tail gas refers to the exhaust gas emitted by motor vehicles or other equipment during the working process. The exhaust gas generated by the equipment during the working process contains various impurities and harmful gases. These substances enter the human body through different ways of respiratory tract and have certain harmfulness to the human body, which can more seriously endanger the health of the human body, so the industrial sites such as factories and workshops will pretreat the exhaust gas before external emission.
[0003] The tail gas treatment equipment of the existing equipment end generally adopts separate condensing devices and filtering devices to treat the tail gas respectively, and the treated tail gas is discharged by means of vacuum pumps and other equipment, and the condensing function and filtering function of the tail gas are realized separately. But this setting mode will cause the deviation of the connection of the condensing point and the filtering point of the tail gas, and the condensing point is too early or lagging compared with the filtering point, thereby greatly reducing the condensing and filtering effect of the tail gas, causing the filter in the tail gas treatment equipment to be blocked, increasing the running resistance of the tail gas treatment equipment, and affecting the service life of the tail gas treatment equipment. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at providing a condensing filter to solve the problems of blockage, large running resistance and short service life in the prior art.
[0005] To achieve this purpose, the utility model adopts the following technical scheme:
[0006] The condensing filter comprises:
[0007] The outer condensing cylinder body has an air inlet and an air outlet;
[0008] The inner condensing cylinder body is coaxially arranged in the outer condensing cylinder body, and the circumferential outer wall of the inner condensing cylinder body and the circumferential inner wall of the outer condensing cylinder body form a condensing cavity in communication with the air inlet, and the outer condensing cylinder body and the inner condensing cylinder body are used for cooling the gas in the condensing cavity;
[0009] The filter cylinder body is coaxially arranged in the inner condensing cylinder body, and the circumferential inner wall of the inner condensing cylinder body and the circumferential outer wall of the filter cylinder body form a transition cavity;
[0010] One end of the inner condensing cylinder body is connected to the first end of the outer condensing cylinder body, the other end and the second end of the outer condensing cylinder body and the filter cylinder body form a transition passage, the condensing cavity is communicated with the transition cavity through the transition passage, the air inlet is arranged close to the first end, the gas in the transition cavity can pass through the cylinder wall of the filter cylinder body and be filtered by the filter cylinder body, and the air outlet is connected to the inside of the filter cylinder body.
[0011] Preferably, the condensing filter further comprises a gas flow guide ring assembly arranged in the condensing cavity for guiding the gas in the condensing cavity.
[0012] Preferably, the gas flow guide ring assembly comprises a plurality of first guide rings and a plurality of second guide rings, the first guide rings and the second guide rings are arranged alternately and spaced along the axial direction of the outer condensing cylinder, the outer edges of the first guide rings are connected with the inner circumferential wall of the outer condensing cylinder, the inner edges of the first guide rings are arranged spaced from the outer circumferential wall of the inner condensing cylinder, the outer edges of the second guide rings are arranged spaced from the inner circumferential wall of the outer condensing cylinder, and the inner edges of the second guide rings are connected with the outer circumferential wall of the inner condensing cylinder.
[0013] Preferably, the spacing between the adjacent first guide ring and the second guide ring is the same in the axial direction of the outer condensing cylinder.
[0014] Alternatively, the spacing between the adjacent first guide ring and the second guide ring gradually increases in the direction from the first end to the second end.
[0015] Alternatively, the condensing cavity comprises a first interval, a second interval and a third interval arranged in sequence in the direction from the first end to the second end, the first guide ring and the second guide ring are arranged in the first interval, the second interval and the third interval, the spacing between the adjacent first guide ring and the second guide ring in the third interval is greater than the spacing between the adjacent first guide ring and the second guide ring in the first interval, and less than the spacing between the adjacent first guide ring and the second guide ring in the second interval.
[0016] Preferably, one end of the filter cylinder in the axial direction is sealingly connected to the first end, and the other end is sealingly connected to the second end.
[0017] Preferably, the second end of the outer condensing cylinder is provided with an end cover, and the other end of the filter cylinder in the axial direction is sealingly connected to the end cover.
[0018] The beneficial effects of the utility model are as follows:
[0019] The utility model provides a kind of condensing filter, including outer condensing cylinder, inner condensing cylinder and filter cylinder body.The outer condensing cylinder has air inlet and air outlet;Inner condensing cylinder is coaxially arranged in outer condensing cylinder, and the circumferential outer wall of inner condensing cylinder and the circumferential inner wall of outer condensing cylinder form condensing cavity communicated with air inlet, and outer condensing cylinder and inner condensing cylinder are used to cool gas in condensing cavity;Filter cylinder body is coaxially arranged in inner condensing cylinder, and the circumferential inner wall of inner condensing cylinder and the circumferential outer wall of filter cylinder body form transition cavity;One end of inner condensing cylinder is connected to the first end of outer condensing cylinder, and the other end is surrounded with the second end of outer condensing cylinder and filter cylinder body to form transition passage, condensing cavity is communicated with transition cavity through transition passage, air inlet is arranged close to the first end, gas in transition cavity can pass through the cylinder wall of filter cylinder body and be filtered by filter cylinder body, and air outlet is connected to the inside of filter cylinder body.Through the above structure, tail gas enters condensing cavity from air inlet, and outer condensing cylinder and inner condensing cylinder on both sides of condensing cavity cool it, in the cooling process, tail gas liquefies and adheres to large-particle impurities, and falls to the second end of outer condensing cylinder when passing through the second end of outer condensing cylinder, reducing the content of large-particle impurities in tail gas, and the temperature of cooled tail gas drops to condensation point, and moves to transition cavity through transition passage, and then filters through the cylinder wall of filter cylinder body to air outlet, avoiding that large-particle impurities in tail gas are directly adsorbed on filter cylinder body, thereby avoiding that filter cylinder body is blocked, reducing the operating resistance of condensing filter, thereby reducing the maintenance frequency of condensing filter, prolonging the service life of condensing filter. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is the structure schematic diagram of the condensing filter provided by the utility model embodiment.
[0021] In the figure:
[0022] 1, outer condensing cylinder;11, air inlet;12, air outlet;13, end cover;2, inner condensing cylinder;3, filter cylinder body;4, airflow guide ring assembly;41, first guide ring;42, second guide ring;5, condensing cavity;6, transition passage. DETAILED DESCRIPTION
[0023] The utility model will be further explained in detail in connection with the drawings and examples.It can be understood that the specific examples described here are only used to explain the utility model, not to limit the utility model.In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawing, not all structures.
[0024] In the description of the utility model, unless another definite provision and limitation, the term "link", "connect", "fix" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two element internal communication or two element mutual action relationship.For ordinary skilled in the art, the above-mentioned terms can be understood in the utility model according to specific circumstances.
[0025] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the additional feature between them.Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the first feature horizontal height is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the first feature horizontal height is less than the second feature.
[0026] In the description of the embodiment, the terms "on", "under", "right", etc. Orientation or position relationship is based on the orientation or position relationship shown in the drawing, only for the convenience of description and simplification operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.
[0027] The embodiment provides a kind of condensing filter, as a kind of equipment end exhaust gas treatment equipment, for carrying out condensing filtration treatment to exhaust gas, in cooling process, large particle impurities drop to the second end of outer condensing cylinder, reduce the content of suspended matter in exhaust gas, avoid the large particle impurities in exhaust gas directly adsorbed on filter cylinder, further avoid filter cylinder blockage, thereby reduce the maintenance frequency of condensing filter, prolong the service life of condensing filter.
[0028] As Figure 1As shown, in the present embodiment, the condensing filter comprises an outer condensing cylinder 1, an inner condensing cylinder 2 and a filtering cylinder 3. Specifically, the outer condensing cylinder 1 has an air inlet 11 and an air outlet 12; the inner condensing cylinder 2 is coaxially arranged in the outer condensing cylinder 1, and a circumferential outer wall of the inner condensing cylinder 2 and a circumferential inner wall of the outer condensing cylinder 1 form a condensing cavity 5 in communication with the air inlet 11, and the outer condensing cylinder 1 and the inner condensing cylinder 2 are both used for cooling the gas in the condensing cavity 5. The filtering cylinder 3 is coaxially arranged in the inner condensing cylinder 2, and a circumferential inner wall of the inner condensing cylinder 2 and a circumferential outer wall of the filtering cylinder 3 form a transition cavity. One end of the inner condensing cylinder 2 is connected to a first end of the outer condensing cylinder 1, and the other end is surrounded by the second end of the outer condensing cylinder 1 and the filtering cylinder 3 to form a transition passage 6, the condensing cavity 5 is communicated with the transition cavity through the transition passage 6, the air inlet 11 is arranged close to the first end, and the gas in the transition cavity can pass through the cylinder wall of the filtering cylinder 3 and be filtered by the filtering cylinder 3, and the air outlet 12 is connected to the inside of the filtering cylinder 3. It can be understood that by arranging the above condensing filter, the tail gas enters the condensing cavity 5 from the air inlet 11, and the outer condensing cylinder 1 and the inner condensing cylinder 2 on both sides of the condensing cavity 5 cool it, the air inlet 11 is arranged close to the first end, which is conducive to increasing the contact area of the tail gas with the outer condensing cylinder 1 and the inner condensing cylinder 2, improving the cooling effect, and the temperature of the cooled tail gas is reduced to the condensation point and liquefied to adhere to the large-particle impurities, then falls to the second end of the outer condensing cylinder 1 through the transition passage 6, filters the large-particle impurities existing in the tail gas, reduces the content of suspended matter in the tail gas, and moves the cooled tail gas to the transition cavity through the transition passage 6, at this time, the circumferential inner wall of the inner condensing cylinder 2 still filters the tail gas, so that the temperature of the tail gas is at the optimal condensation point, then passes through the cylinder wall of the filtering cylinder 3 for filtering, and moves to the air outlet 12 after filtering the impurities that are not attached, ensuring that the impurities in the tail gas are intercepted, that is, while fully filtering the impurities in the tail gas, the large-particle impurities in the tail gas are directly adsorbed on the filtering cylinder 3, thereby avoiding the blocking of the filtering cylinder 3, reducing the running resistance of the condensing filter, thereby reducing the maintenance frequency of the condensing filter and prolonging the service life of the condensing filter.
[0029] Further, with reference to Figure 1 , the condensing filter further comprises a gas flow guide ring assembly 4 arranged in the condensing cavity 5 for guiding the gas in the condensing cavity 5. It can be understood that by arranging the gas flow guide ring assembly 4, the tail gas in the condensing cavity 5 can be guided after entering the condensing cavity 5, on the one hand, the tail gas can flow in and out smoothly, ensuring that the tail gas will not be blocked or retained during the condensation process; on the other hand, it can also prolong the contact time of the tail gas with the outer condensing cylinder 1 and the inner condensing cylinder 2, thereby improving the condensation efficiency and refrigeration effect.
[0030] Further, the gas flow guide ring assembly 4 comprises a plurality of first guide rings 41 and a plurality of second guide rings 42, the first guide rings 41 and the second guide rings 42 are arranged alternately and spaced along the axial direction of the outer condensing cylinder 1, the outer edge of the first guide ring 41 is connected with the circumferential inner wall of the outer condensing cylinder 1, and the inner edge of the first guide ring 41 is arranged spaced from the circumferential outer wall of the inner condensing cylinder 2, so that a flow channel for the tail gas to flow can be formed between the adjacent first guide ring 41 and the second guide ring 42. Further, the outer edge of the second guide ring 42 is arranged spaced from the circumferential inner wall of the outer condensing cylinder 1, and the inner edge of the second guide ring 42 is connected with the circumferential outer wall of the inner condensing cylinder 2. It can be understood that, through the above arrangement, the plurality of first guide rings 41, the plurality of second guide rings 42, the circumferential inner wall of the outer condensing cylinder 1 and the circumferential outer wall of the inner condensing cylinder 2 together form a gas flow channel, when the tail gas flows through the gas flow channel, the tail gas can repeatedly contact the circumferential inner wall of the outer condensing cylinder 1 and the circumferential outer wall of the inner condensing cylinder 2 to continuously cool, thereby further improving the cooling effect.
[0031] Exemplarily, the outer edge of the first guide ring 41 is welded with the circumferential inner wall of the outer condensing cylinder 1, and the inner edge of the second guide ring 42 is welded with the circumferential outer wall of the inner condensing cylinder 2, thereby realizing the fixation of the first guide ring 41 with the outer condensing cylinder 1 and the fixation of the second guide ring 42 with the inner condensing cylinder 2. Of course, in other embodiments, other fixation modes can also be adopted, such as bonding, arranging a fixation structure, etc.
[0032] Further, the spacing between the adjacent first guide ring 41 and the second guide ring 42 is the same in the axial direction of the outer condensing cylinder 1. It can be understood that, the spacing between the adjacent first guide ring 41 and the second guide ring 42 is the same, the cross-sectional area of the gas flow channel formed thereby is constant, which is beneficial to the smooth flow of the tail gas.
[0033] Further, the spacing between the adjacent first guide ring 41 and the second guide ring 42 gradually increases in the direction from the first end to the second end (i.e. the upward direction in the figure). Figure 1 It can be understood that, by increasing the spacing between the adjacent first guide ring 41 and the second guide ring 42, the cross-sectional area of the gas flow channel formed thereby can be gradually increased, so that when the impurity content is high, the gas flow channel formed thereby will not be blocked, and the normal flow of the tail gas is ensured.
[0034] It can be understood that when the impurity content in the tail gas is high, the flowability of the tail gas can be improved by gradually increasing the spacing between the adjacent first guide ring 41 and the second guide ring 42 in the direction from the first end to the second end, and by using first guide ring 41 and second guide ring 42 of appropriate size. Exemplarily, the first guide ring 41 and the second guide ring 42 can be circular rings, and the sizes of the first guide ring 41 and the second guide ring 42 can be various. For example, when installing the gas flow guide ring assembly 4, first guide ring 41 and second guide ring 42 of different sizes can be used, and the width of adjacent first guide ring 41 and second guide ring 42 gradually decreases in the direction from the first end to the second end. It can be understood that by setting the first guide ring 41 and the second guide ring 42 as circular rings, the circumferential inner wall of the first guide ring 41 and the second guide ring 42 is curved, which facilitates the flow of the tail gas. At the same time, the width of adjacent first guide ring 41 and second guide ring 42 gradually decreases, an axial channel with gradually increasing size is formed in the condensation cavity 5 in the direction from the first end to the second end, which is conducive to the flow of the tail gas, and gradually reduces the resistance of the first guide ring 41 and the second guide ring 42 to the tail gas, ensuring the flowability of the tail gas and avoiding the situation of blockage when the impurity content in the tail gas is high.
[0035] Exemplarily, in order to further improve the condensation effect of the tail gas, the condensation cavity 5 comprises a first section (not shown in the figure), a second section (not shown in the figure) and a third section (not shown in the figure) arranged in sequence along the direction from the first end to the second end, and the first guiding ring 41 and the second guiding ring 42 are arranged in the first section, the second section and the third section. The distance between the adjacent first guiding ring 41 and the second guiding ring 42 in the third section is greater than the distance between the adjacent first guiding ring 41 and the second guiding ring 42 in the first section, and is less than the distance between the adjacent first guiding ring 41 and the second guiding ring 42 in the second section. It can be understood that along the direction from the first end to the second end, the second section is located between the first section and the third section, and the tail gas moves from the first section to the second section and then to the third section in the flow process, so that the distance between the adjacent first guiding ring 41 and the second guiding ring 42 in the third section is greater than the distance between the adjacent first guiding ring 41 and the second guiding ring 42 in the first section, that is, the outlet area of the gas flow channel formed is greater than the inlet area, which meets the principle of continuous flow and can ensure the stable flow of the gas. At the same time, the distance between the adjacent first guiding ring 41 and the second guiding ring 42 in the third section is less than the distance between the adjacent first guiding ring 41 and the second guiding ring 42 in the second section, that is, the distance between the adjacent first guiding ring 41 and the second guiding ring 42 in the second section is the largest among the first section, the second section and the third section. It can be understood that the cross-sectional area of the gas flow channel formed by the second section is greater than the cross-sectional area of the gas flow channel formed by the first section and the cross-sectional area of the gas flow channel formed by the third section. When the cross-sectional area of the gas flow channel increases, the flow rate of the gas will decrease to prolong the cooling time of the tail gas in the second section, thereby improving the cooling effect of the tail gas. At the same time, it is inevitable that although the gas flow guiding ring assembly 4 is arranged, part of the tail gas will flow back and forth near the middle position, that is, the second section, that is, part of the tail gas will reciprocate in the second section. By increasing the area of the second section and reducing the flow rate of part of the tail gas, the cooling time is increased, and the cooling effect of the tail gas is further improved.
[0036] Further, one end of the filter cylinder body 3 in the axial direction is sealingly connected to the first end, and the other end is sealingly connected to the second end. It can be understood that by sealingly connecting the filter cylinder body 3 to the first end and the second end respectively, it is avoided that the unfiltered tail gas directly enters the inside of the filter cylinder body 3 through the gap between the filter cylinder body 3 and the first end and the second end, thereby ensuring the filtering effect.
[0037] Exemplarily, the filter cylinder 3 is a hollow structure, and comprises a filter layer (not shown in the figure) and a filter support (not shown in the figure) connected with each other, the filter layer and the filter support both extend along the axial direction of the filter cylinder 3, the filter support is in a cylindrical shape, two ends of the filter layer are respectively in abutment with the first end and the second end, one end of the filter support is sealingly connected to the first end, and the other end of the filter support is sealingly connected to the second end, the filter layer is located at the outer side of the filter support, and the filter support provides a supporting effect for the filter layer. Specifically, the filter layer can be composed of a metal material with plasticity, similar to a steel ball and the like, and the side of the filter support is provided with a dense hole structure, which can be rolled by a metal mesh plate. The materials and specific structures of the filter layer and the filter support are prior art, and the present embodiment does not make specific limitations thereon.
[0038] Further, the filter layer and the filter support are further provided with filter paper (not shown in the figure) therebetween, so as to further improve the filtering effect of the filter cylinder 3. The selection of the filter paper is prior art, and the present embodiment does not make specific limitations thereon.
[0039] Further, as shown in Figure 1 the second end of the outer condensing cylinder 1 is provided with an end cover 13, and the other end of the filter cylinder 3 in the axial direction is sealingly connected to the end cover 13. Specifically, the end cover 13 is detachably connected to the second end of the outer condensing cylinder 1. It can be understood that, by arranging the detachable end cover 13, the second end of the outer condensing cylinder 1 is sealed, and the filter cylinder 3 and the airflow guiding ring assembly 4 are convenient to disassemble and assemble, which is convenient to operate.
[0040] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is not necessary and impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.
Claims
1. Condensate filter, characterized in that The condensing filter comprises: an outer condensing cylinder (1) having an air inlet (11) and an air outlet (12); an inner condensing cylinder (2) coaxially arranged in the outer condensing cylinder (1), and a circumferential outer wall of the inner condensing cylinder (2) and a circumferential inner wall of the outer condensing cylinder (1) form a condensing cavity (5) in communication with the air inlet (11), and the outer condensing cylinder (1) and the inner condensing cylinder (2) are used for cooling the gas in the condensing cavity (5); a filtering cylinder (3) coaxially arranged in the inner condensing cylinder (2), and a circumferential inner wall of the inner condensing cylinder (2) and a circumferential outer wall of the filtering cylinder (3) form a transition cavity; one end of the inner condensing cylinder (2) is connected to a first end of the outer condensing cylinder (1), and the other end is surrounded by a second end of the outer condensing cylinder (1) and the filtering cylinder (3) to form a transition passage (6), the condensing cavity (5) is communicated with the transition cavity through the transition passage (6), the air inlet (11) is arranged close to the first end, the gas in the transition cavity can pass through the cylinder wall of the filtering cylinder (3) and be filtered by the filtering cylinder (3), and the air outlet (12) is communicated with the inside of the filtering cylinder (3).
2. The condensing filter of claim 1, wherein, The condensing filter further comprises a gas flow guide ring assembly (4) arranged in the condensing cavity (5) for guiding the gas in the condensing cavity (5).
3. The condensing filter of claim 2, wherein, The gas flow guide ring assembly (4) comprises a plurality of first guide rings (41) and a plurality of second guide rings (42), the first guide rings (41) and the second guide rings (42) are alternately and spacedly arranged along the axial direction of the outer condensing cylinder (1), the outer edge of the first guide ring (41) is connected with the circumferential inner wall of the outer condensing cylinder (1), the inner edge of the first guide ring (41) is spacedly arranged with the circumferential outer wall of the inner condensing cylinder (2), the outer edge of the second guide ring (42) is spacedly arranged with the circumferential inner wall of the outer condensing cylinder (1), and the inner edge of the second guide ring (42) is connected with the circumferential outer wall of the inner condensing cylinder (2).
4. The condensing filter of claim 3, wherein, In the axial direction of the outer condensing cylinder (1), the spacing between adjacent first guide rings (41) and second guide rings (42) is the same; alternatively, in the direction from the first end to the second end, the spacing between adjacent first guide rings (41) and second guide rings (42) gradually increases. Alternatively, the condensing cavity (5) comprises a first section, a second section and a third section arranged in sequence in the direction from the first end to the second end, the first section, the second section and the third section are each provided with the first guide ring (41) and the second guide ring (42), the distance between the adjacent first guide ring (41) and the second guide ring (42) in the third section is greater than the distance between the adjacent first guide ring (41) and the second guide ring (42) in the first section, and is less than the distance between the adjacent first guide ring (41) and the second guide ring (42) in the second section.
5. The condensing filter of claim 1, wherein, One end of the filter cartridge body (3) in the axial direction is sealingly connected to the first end, and the other end is sealingly connected to the second end.
6. The condensing filter of claim 5, wherein, The second end of the outer condensing cylinder (1) is provided with an end cover (13), and the other end of the filter cartridge body (3) in the axial direction is sealingly connected to the end cover (13).