A gas processing inlet pretreatment device

Abstract

This utility model discloses a gas processing pretreatment device, comprising: a duct with an air inlet at the left end, an air outlet at the right end, and a first mounting port on the top wall; a mounting shell inserted into the inner cavity of the duct at the first mounting port, with ventilation openings on both the left and right side walls and a second mounting port on the top wall; a filter frame inserted into the mounting shell and movable laterally and vertically along the mounting shell, with a filter plate disposed inside the filter frame; and an elastic pressing assembly disposed within the mounting shell, comprising a pressing frame and a first spring, the first spring and the filter frame being disposed on opposite sides of the pressing frame. During filter plate replacement, the gas must always pass through the filter plate before flowing to the air outlet, preventing dust-laden gas from directly flowing into the gas processing equipment without filtration when the equipment is being replaced without stopping operation, thus ensuring that the gas is always effectively filtered.

Description

Technical Field

[0001] This utility model relates to the field of gas processing pretreatment technology, and in particular to a gas processing inlet pretreatment device. Background Technology

[0002] Gas processing equipment, such as gas compressors and gas precoolers, can process gases through compression and cooling. To ensure the quality of the incoming gas, a pretreatment device with filtration function is usually required to filter the gas flowing into the gas processing equipment, removing impurities such as dust. Generally, this type of pretreatment device includes a housing with filter plates installed inside. During operation, gas is introduced from one side of the housing through positive pressure air supply or negative pressure suction, and the gas exits from the other side of the housing after passing through the filter plates, which intercept dust and other impurities.

[0003] After a period of use, filter plates accumulate a significant amount of dust and need to be replaced. There are generally two methods for replacing filter plates: the first is to temporarily stop the gas processing equipment, halting gas flow, and then restarting the equipment after replacing the filter plates; the second is to keep the gas processing equipment running continuously, allowing for direct filter plate replacement. For the first method, starting and stopping the gas processing equipment affects processing efficiency and incurs significant losses. For the second method, during the time between removing the old filter plate and installing the new one, the gas flowing through the casing is unfiltered, allowing dust-laden gas to directly enter the gas processing equipment, impacting processing quality. Utility Model Content

[0004] The purpose of this invention is to provide a gas processing pretreatment device that can solve the problem that when the gas processing equipment is being replaced without stopping the machine, the gas containing dust flows directly into the gas processing equipment without being filtered.

[0005] To achieve the above objectives, a gas processing pretreatment device is provided, comprising: a duct with an air inlet at the left end and an air outlet at the right end, and a first mounting opening on the top wall; a mounting shell inserted into the inner cavity of the duct at the first mounting opening, wherein ventilation openings are provided on both the left and right side walls of the mounting shell, and a second mounting opening is provided on the top wall; a filter frame inserted into the mounting shell and capable of moving laterally and vertically along the mounting shell, wherein a filter plate is provided on the inner side of the filter frame; and an elastic pressing assembly disposed within the mounting shell, comprising a pressing frame and a first spring member, wherein the first spring member and the filter frame are respectively disposed on both sides of the pressing frame.

[0006] According to the gas processing pretreatment device, the elastic pressure assembly further includes a guide rod, one end of which is fixedly connected to the pressure frame, and the other end is slidably inserted through the side wall of the mounting housing. The first spring is sleeved on the guide rod between the side wall of the mounting housing and the pressure frame.

[0007] According to the gas processing pretreatment device, the top of the pressure frame has a bent plate extending to the left, and the bent plate is in contact with the top surface of the mounting shell.

[0008] According to the gas processing pretreatment device, a first guide slope is provided on the top right side of the filter frame, and a second guide slope is provided on the bottom left side.

[0009] According to the aforementioned gas processing pretreatment device, the bottom of the filter frame is provided with a vertical limiting mechanism that cooperates with the mounting shell, and the vertical limiting mechanism can be unlocked when the filter frame moves laterally.

[0010] According to the aforementioned gas processing pretreatment device, the vertical limiting mechanism includes: a mounting cavity disposed on the bottom right side of the filter frame; a limiting head slidably inserted into the mounting cavity; a second spring member disposed in the mounting cavity and abutting the limiting head; a limiting hole is provided on the right side wall of the mounting shell, and one end of the limiting head facing away from the second spring member extends out of the mounting cavity and is inserted into the limiting hole, and the width of the portion of the limiting head extending out of the mounting cavity is less than the width of the projection of the second guide inclined surface on the horizontal plane.

[0011] According to the gas processing pretreatment device, a third guide slope is provided at the bottom of the end of the limiting head facing away from the second spring member.

[0012] According to the aforementioned gas processing pretreatment device, the top of the filter frame is vertically provided with a threaded hole.

[0013] According to the aforementioned gas processing pretreatment device, a casing is provided on the top of the mounting housing, and a cover is provided on the top of the casing.

[0014] Beneficial effects: With the above structure, when the filter plate needs to be replaced, the filter plate is installed into the new filter frame, and the old filter frame inside the mounting housing is pushed to move laterally to the left. The new filter frame is then inserted downwards on the right side of the old filter frame, at which point the first spring is compressed and shortened. After the new filter frame is inserted into place, the old filter frame is pulled out upwards, and the first spring pushes the pressure frame to move laterally to the right to reset, thus positioning the new filter frame. In this way, the filter plate replacement is completed. During the filter plate replacement process, the gas must always pass through the filter plate before flowing to the air outlet, which can avoid the problem of dusty gas flowing directly into the gas processing equipment without filtration when the gas processing equipment is being replaced without stopping the machine, ensuring that the gas is always effectively filtered.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a front sectional view of an embodiment of the present utility model;

[0018] Figure 2 for Figure 1 Enlarged view of part A;

[0019] Figure 3 This is a structural diagram of the mounting shell;

[0020] Figure 4 This is a structural diagram of the pressure frame;

[0021] Figure 5 This is a structural diagram of the filter frame and filter plate. Detailed Implementation

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationships based on the directional or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0026] Reference Figure 1-5 A gas processing pretreatment device includes a duct 10, a mounting shell 20, a filter frame 30, and an elastic pressure assembly. The duct 10 has an air inlet 11 at its left end and an air outlet 12 at its right end. A first mounting opening 13 is formed in the top wall of the duct 10. The mounting shell 20 is located at the first mounting opening 13 and inserted into the inner cavity of the duct 10. Ventilation openings 21 are formed on both the left and right side walls of the mounting shell 20. A second mounting opening 22 is formed in the top wall of the mounting shell 20. The filter frame 30 is inserted into the mounting shell 20 and is movable laterally and vertically along the mounting shell 20. A filter plate 31 is provided inside the filter frame 30. The elastic pressure assembly is located inside the mounting shell 20 and includes a pressure frame 41 and a first spring 42. The first spring 42 and the filter frame 30 are respectively located on both sides of the pressure frame 41.

[0027] During operation, a positive pressure air supply device or a negative pressure suction device is installed outside the air duct 10 to drive the gas flow. The drawn gas enters from the air inlet 11, passes through the pressure frame 41 and the filter plate 31 in sequence inside the mounting housing 20, and finally flows out from the air outlet 12. The gas is filtered by the filter plate 31 to intercept dust and other impurities. The first spring 42 and the pressure frame 41 cooperate to press the filter frame 30 against the inner side wall of the mounting housing 20 and the side wall of the pressure frame 41, thereby positioning the filter frame 30 inside the mounting housing 20. When filter plate 31 needs to be replaced, insert filter plate 31 into new filter frame 30, push the old filter frame 30 in the mounting housing 20 to move laterally to the left, and insert the new filter frame 30 to the lower right side of the old filter frame 30. At this time, the first spring member 42 is compressed and shortened. After the new filter frame 30 is inserted into place, pull out the old filter frame 30 by moving it upward. The first spring member 42 pushes the pressure frame 41 to move laterally to the right to reset, so as to position the new filter frame 30. In this way, the replacement of filter plate 31 is completed.

[0028] As described above, during the replacement of filter plate 31, the gas must always pass through filter plate 31 before flowing to the air outlet 12. This avoids the problem of dusty gas flowing directly into the gas processing equipment without filtration when the gas processing equipment is being replaced without stopping the machine, thus ensuring that the gas is always effectively filtered.

[0029] In this embodiment, the elastic pressing assembly further includes a guide rod 43. One end of the guide rod 43 is fixedly connected to the pressure frame 41 by insertion, and the other end of the guide rod 43 is slidably inserted through the side wall of the mounting shell 20. The first spring member 42 is sleeved on the guide rod 43 between the side wall of the mounting shell 20 and the pressure frame 41. This structure guides the movement of the pressure frame 41, ensuring its stable lateral movement.

[0030] In this embodiment, the top of the pressure frame 41 has a bent plate 411 extending to the left, which is in contact with the top surface of the mounting shell 20. This structure can shield the left side of the second mounting port 22, preventing gas from escaping from the left side of the second mounting port 22.

[0031] In addition, sealing strips can be embedded on the bottom surface of the bending plate 411 and the side surface of the filter frame 30 to further improve the sealing performance and reduce air leakage.

[0032] In this embodiment, a first guide slope 32 is provided on the top right side of the filter frame 30, and a second guide slope 33 is provided on the bottom left side. With this structure, when a new filter frame 30 is inserted, the cooperation of the first guide slope 32 and the second guide slope 33 can push the old filter frame 30 to the left to avoid it, so as to form a space on the right side of the old filter frame 30 that can accommodate the new filter frame 30, without the need to push the old filter frame 30 to the left separately.

[0033] In this embodiment, the bottom of the filter frame 30 is provided with a vertical limiting mechanism that cooperates with the mounting shell 20. When the filter frame 30 moves laterally, the vertical limiting mechanism can be unlocked. Specifically, the vertical limiting mechanism includes a mounting cavity 341, a limiting head 342, and a second spring member 343. The mounting cavity 341 is located on the bottom right side of the filter frame 30. The limiting head 342 is slidably inserted into the mounting cavity 341. The second spring member 343 is located in the mounting cavity 341 and abuts against the limiting head 342. The right side wall of the mounting shell 20 is provided with a limiting hole 23. One end of the limiting head 342 facing away from the second spring member 343 extends out of the mounting cavity 341 and is inserted into the limiting hole 23. The width of the portion of the limiting head 342 extending out of the mounting cavity 341 is less than the width of the projection of the second guide inclined surface 33 on the horizontal plane.

[0034] With this structure, the limiting head 342 can be inserted into the limiting hole 23 to restrict the upward movement of the filter frame 30. When a new filter frame 30 is inserted, the new filter frame 30 pushes the old filter frame 30 to the left so that the limiting head 342 moves out of the limiting hole 23, thereby unlocking the vertical limiting mechanism. After the new filter frame 30 is inserted into the limiting hole 23, its limiting head 342 is inserted into the limiting hole 23 to prevent the new filter frame 30 from moving upward through friction when the old filter frame 30 is pulled out.

[0035] In this embodiment, a third guide slope 344 is provided at the bottom of the end of the limiting head 342 facing away from the second spring member 343. With this structure, when a new filter frame 30 is directly inserted, the limiting head 342 can be pushed back into the mounting cavity 341 to facilitate the insertion and installation of the new filter frame 30.

[0036] In this embodiment, a threaded hole 35 is vertically provided at the top of the filter frame 30. When it is necessary to remove the old filter frame 30, a threaded force-applying component can be installed in its threaded hole 35 so that the filter frame 30 can be lifted by hand by gripping the force-applying component.

[0037] In this embodiment, a casing 50 is provided on the top of the mounting shell 20, and a cover 60 is fitted on the top of the casing 50. This structure can shield the second mounting port 22, filter frame 30, pressure frame 41 and other structures, preventing them from being exposed and contaminated with dust, and can also provide a seal to prevent air leakage.

[0038] In this embodiment, the front and rear side walls of the mounting shell 20 abut against the front and rear side walls of the duct 10 shell, and the first mounting port 13 is adapted to the mounting shell 20. During manufacturing, the first mounting port 13 is opened at the top of the duct 10 shell, and the mounting shell 20 is inserted into the duct 10 shell through the first mounting port 13. This facilitates the modification of the duct 10 shell to achieve the function of continuous gas filtration during the replacement of the filter plate 31 without shutting down the machine. The modification cost is low and the use is convenient.

[0039] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A gas processing inlet pretreatment device, characterized in that, include: The duct has an air inlet at the left end, an air outlet at the right end, and a first installation opening on the top wall. The mounting housing is inserted into the inner cavity of the air duct at the first mounting port. Ventilation ports are provided on both the left and right side walls of the mounting housing, and a second mounting port is provided on the top wall. A filter frame is inserted into the mounting housing and can move laterally and vertically along the mounting housing. A filter plate is provided on the inner side of the filter frame. An elastic pressure-resistant assembly is disposed within the mounting housing and includes a pressure frame and a first spring member, wherein the first spring member and the filter frame are respectively disposed on both sides of the pressure frame.

2. The gas processing inlet pretreatment device according to claim 1, characterized in that, The elastic pressure-resistant assembly also includes a guide rod, one end of which is fixedly connected to the pressure frame, and the other end is slidably inserted through the side wall of the mounting shell. The first spring is sleeved on the guide rod between the side wall of the mounting shell and the pressure frame.

3. A gas processing inlet pretreatment device according to claim 1 or 2, characterized in that, The top of the pressure frame has a bent plate extending to the left, which is in contact with the top surface of the mounting shell.

4. The gas processing inlet pretreatment device according to claim 1, characterized in that, The filter frame has a first guide slope on the top right side and a second guide slope on the bottom left side.

5. The gas processing inlet pretreatment device according to claim 4, characterized in that, The bottom of the filter frame is provided with a vertical limiting mechanism that cooperates with the mounting shell. When the filter frame moves laterally, the vertical limiting mechanism can be unlocked.

6. The gas processing inlet pretreatment device according to claim 5, characterized in that, The vertical limiting mechanism includes: The mounting cavity is located on the bottom right side of the filter frame; The limiting head is slidably inserted into the mounting cavity; The second spring component is disposed within the mounting cavity and abuts against the limiting head; The right side wall of the mounting housing is provided with a limiting hole. The end of the limiting head facing away from the second spring extends out of the mounting cavity and is inserted into the limiting hole. The width of the portion of the limiting head extending out of the mounting cavity is less than the width of the projection of the second guide inclined surface on the horizontal plane.

7. A gas processing inlet pretreatment device according to claim 6, characterized in that, The bottom of the end of the limiting head facing away from the second spring is provided with a third guide slope.

8. A gas processing inlet pretreatment apparatus according to any one of claims 4 to 7, characterized in that, The top of the filter frame is vertically provided with a threaded hole.

9. A gas processing inlet pretreatment device according to claim 5, characterized in that, The top of the mounting shell is provided with a surrounding tube, and the top of the surrounding tube is provided with a cover.

Images