Air inlet pipe structure of deaerator dead steam recovery device

Abstract

The utility model relates to an air inlet pipe structure of a deaerator dead steam recovery device, and belongs to the technical field of deaerator dead steam recovery devices. Comprising a main pipeline, an auxiliary pipeline and a filter pipe, one end of the main pipeline is in flange connection with one end of an air inlet pipe of a dead steam recovery device, one end of the auxiliary pipeline is in flange connection with one end of an air outlet pipe of a deaerator, and a first movable pipe is slidably connected into the other end of the main pipeline. According to the utility model, the filter pipe is fixed between the movable pipe I and the movable pipe II in a clamping manner, so that the follow-up maintenance work is facilitated. Meanwhile, a clamping and fixing mode is adopted, and after multiple times of disassembly and assembly, good sealing performance can still be kept between the filter pipe and the first movable pipe and between the filter pipe and the second movable pipe. And the filter plate piece can block impurity particles or other substances with different particle sizes in the flowing dead steam in batches, so that the possibility of blockage is reduced, and smooth flowing of the dead steam is ensured. And after the dead steam is subjected to multi-stage filtration, the filtration effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of a deaerator exhaust steam recovery device, in particular to an air intake pipe structure of a deaerator exhaust steam recovery device. Background Art

[0002] The exhaust steam recovery device of the deaerator is a device that recycles the exhaust steam discharged from the deaerator. The outlet pipe of the deaerator is connected to the inlet pipe of the exhaust steam recovery device through the inlet pipe. In this process, the exhaust steam discharged from the deaerator passes through the outlet pipe, enters the inlet pipe, and finally enters the exhaust steam recovery device through the inlet pipe for recycling.

[0003] The traditional deaerator exhaust steam recovery device does not take filtering measures in the air intake pipe to filter the impurity particles or other substances in the exhaust steam, which will cause solid particles, sediments or other impurities in the exhaust steam to enter the exhaust steam recovery device, affecting the normal operation and performance of the equipment. Impurities may block the internal pipes, valves or other key components of the equipment, increase the frequency of equipment maintenance, and even damage the equipment.

[0004] Some deaerator exhaust steam recovery devices install a single set of filter plates in the middle of the intake pipe to filter out foreign particles or other substances. The filter plate is fixed by flange connection, which is not only inconvenient for subsequent disassembly and maintenance, but also its sealing performance will decrease after frequent disassembly and assembly of the intake pipe. Secondly, the filtering effect of a single set of filter plates is poor when filtering foreign particles or other substances in the exhaust steam. Since the filter hole diameter is fixed, it is difficult to meet the filtering requirements of substances of different particle sizes, resulting in foreign particles or other substances easily blocking the filter holes, which in turn causes poor exhaust steam circulation. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an air intake pipe structure of a deaerator exhaust steam recovery device. The technical solution of the utility model is as follows:

[0006] The vent pipe of the invention can be used to vent the filter element of the filter element, and the filter element can be used to vent the filter element of the filter element. A through hole is penetrated, the threaded rod passes through the through hole, and the outer thread sleeve of the threaded rod is provided with a locking nut, the internal slot of the filter tube is connected to the mounting bracket, and the interior of the mounting bracket is connected to a filter plate component, and the filter plate component comprises a primary filter group, a secondary filter group and a tertiary filter group, and the primary filter group, the secondary filter group and the tertiary filter group are all connected by slots to the inside of the mounting bracket, the primary filter group is arranged on a side close to the active tube second, the tertiary filter group is arranged on a side close to the active tube one, the secondary filter group is arranged between the primary filter group and the secondary filter group, and the surfaces of the primary filter group, the secondary filter group and the tertiary filter group are all penetrated with filter holes, the diameter of the filter holes opened on the surface of the primary filter group is larger than the diameter of the filter holes opened on the surface of the secondary filter group, and the diameter of the filter holes opened on the surface of the secondary filter group is larger than the diameter of the filter holes opened on the surface of the tertiary filter group.

[0007] Optionally, a limiting groove is provided inside the main pipe and on one side of the groove, one end of the movable pipe is fixedly connected to a limiting block, and the limiting block is slidably connected inside the limiting groove.

[0008] Optionally, the grooves are provided in three groups, and the sealing rings are provided in three groups accordingly.

[0009] Optionally, a slot 1 is provided at one end of the movable tube 1 away from the limit block, a slot 2 is provided at one end of the movable tube 2 away from the auxiliary pipeline, both ends of the filter tube are fixedly connected with plug blocks, and one group of the plug blocks is inserted into slot 1, and the other group of the plug blocks is inserted into slot 2.

[0010] Optionally, sealing rings are bonded to inner walls of the first slot and the second slot.

[0011] Optionally, the locking nuts are provided in two groups, wherein the locking nuts in one group abut against a side of the connecting seat away from the fixing seat, and the locking nuts in the other group abut against a side of the locking nuts in one group.

[0012] Optionally, a slide groove is provided on the inner wall of the filter tube, and sliders are fixedly connected to both ends of the mounting frame, and the slider slots are connected to the inside of the slide groove on the corresponding side.

[0013] Optionally, the primary filter group is composed of two groups of filter plates, the periphery of the filter plates is fixedly connected with a slip ring, the inner side wall of the mounting frame is provided with a mounting groove, and the slip ring slot is connected to the inside of the mounting groove.

[0014] Optionally, the filter holes opened on the surfaces of the two groups of filter plates are arranged alternately and are not on the same straight line.

[0015] All the above optional technical solutions can be combined arbitrarily, and the present utility model does not provide detailed descriptions of the structures after the combinations.

[0016] By means of the above scheme, the beneficial effects of the utility model are as follows:

[0017] 1. The utility model adopts a clamping method to fix the filter tube between the movable tube 1 and the movable tube 2, so that when disassembling and assembling, only the tightness of the locking nut can be manipulated to adjust the distance between the movable tube 1 and the movable tube 2, which is convenient for subsequent maintenance work. At the same time, the clamping fixation method is adopted, and after multiple disassembly and assembly, the filter tube and the movable tube 1 and the movable tube 2 can still maintain good sealing.

[0018] 2. The filter plate is equipped with three filter groups with different filter hole diameters, which can block impurity particles or other substances of different particle sizes in the exhaust steam in batches, reducing the possibility of blockage and ensuring the smooth flow of exhaust steam. After the exhaust steam is filtered at multiple stages, the filtering effect is better.

[0019] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall appearance of the air intake pipe structure of the deaerator exhaust steam recovery device provided by the utility model;

[0021] Figure 2 It is a structural schematic diagram of the movable tube 1 and the movable tube 2 in the utility model in the open state;

[0022] Figure 3 A top view of the inlet pipe structure of the exhaust steam recovery device of the deaerator provided by the utility model;

[0023] Figure 4It is an exploded top view of the inlet pipe structure of the exhaust steam recovery device of the deaerator provided by the utility model;

[0024] Figure 5 It is a schematic diagram of the disassembled structure of the filter tube, the mounting frame and the filter plate in the utility model.

[0025] Numbers in the figure: 1. main pipeline; 11. limit groove; 12. groove; 13. sealing ring; 2. auxiliary pipeline; 3. movable tube one; 31. limit block; 32. slot one; 33. fixed seat; 34. threaded rod; 341. nut head; 35. locking nut; 4. movable tube two; 41. slot two; 42. connecting seat; 43. through hole; 5. filter tube; 51. plug block; 52. slide groove; 6. mounting frame; 61. slider; 62. mounting groove; 7. filter plate; 71. primary filter group; 711. filter plate; 7111. slip ring; 72. secondary filter group; 73. tertiary filter group. DETAILED DESCRIPTION

[0026] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0027] See also Figure 1-5As shown, the utility model provides an air inlet pipe structure of a deaerator exhaust steam recovery device, including a main pipe 1, a secondary pipe 2 and a filter pipe 5, one end of the main pipe 1 is flange-connected to one end of the air inlet pipe of the exhaust steam recovery device, one end of the secondary pipe 2 is flange-connected to one end of the air outlet pipe of the deaerator, the other end of the main pipe 1 is internally slidably connected with a movable pipe 1 3, a groove 12 is provided inside the main pipe 1, a sealing ring 13 is movably placed inside the groove 12, the sealing ring 13 is located between the groove 12 and the movable pipe 1 3, the other end of the secondary pipe 2 is internally slidably connected with a movable pipe 2 4, the filter pipe 5 is movably connected between the movable pipe 1 3 and the movable pipe 2 4, both sides of the end of the movable pipe 1 3 close to the filter pipe 5 are fixedly connected with a fixing seat 33, one side of the fixing seat 33 is rotatably connected with a threaded rod 34, one end of the threaded rod 34 is fixedly connected with a nut head 341, both sides of the end of the movable pipe 2 4 close to the filter pipe 5 are fixedly connected with a connecting seat 42, the connecting seat 42 A through hole 43 is penetrated through the surface, a threaded rod 34 penetrates through the through hole 43, a locking nut 35 is provided on the outer thread sleeve of the threaded rod 34, the internal slot of the filter tube 5 is connected to the mounting frame 6, the interior of the mounting frame 6 is connected to the filter plate 7, the filter plate 7 includes a primary filter group 71, a secondary filter group 72 and a tertiary filter group 73, and the primary filter group 71, the secondary filter group 72 and the tertiary filter group 73 are all connected to the interior of the mounting frame 6 by slots, the primary filter group 71 is arranged on a side close to the movable tube 2 4, the tertiary filter group 73 is arranged on a side close to the movable tube 1 3, the secondary filter group 72 is arranged between the primary filter group 71 and the secondary filter group 72, the surfaces of the primary filter group 71, the secondary filter group 72 and the tertiary filter group 73 are all penetrated with filter holes, the diameter of the filter hole opened on the surface of the primary filter group 71 is larger than the diameter of the filter hole opened on the surface of the secondary filter group 72, and the diameter of the filter hole opened on the surface of the secondary filter group 72 is larger than the diameter of the filter hole opened on the surface of the tertiary filter group 73.

[0028] The utility model installs a main pipeline 1, a movable pipe 1 3, a filter pipe 5, a movable pipe 2 4 and a secondary pipeline 2 between the air inlet pipe of the exhaust steam recovery device and the air outlet pipe of the deaerator, so that the exhaust steam discharged from the deaerator can be filtered for impurities at multiple stages through the filter plate 7 inside the filter pipe 5, thereby ensuring that the impurity particles or other substances in the exhaust steam are effectively filtered.

[0029] The filter plate 7 adopts a multi-stage filtering method to reduce the clogging of the filter plate 7. When the exhaust steam flows, the primary filter group 71, the secondary filter group 72 and the tertiary filter group 73 can filter impurity particles or other substances of different particle sizes in batches, and the filtering effect is better.

[0030] The movable tube 1 3 and the main pipeline 1, the movable tube 2 4 and the auxiliary pipeline 2 can slide relative to each other. When the filter plate 7 needs to be cleaned, the locking nut 35 only needs to be loosened, and the distance between the movable tube 1 3 and the movable tube 2 4 is manually increased to remove the filter tube 5 and the filter plate 7.

[0031] The provision of the sealing ring 13 enables the movable pipe 1 3 and the main pipe 1 to still play a sealing role when they slide relative to each other (it should be noted that a sealing ring 13 is also provided between the movable pipe 2 4 and the auxiliary pipe 2).

[0032] Furthermore, a limiting groove 11 is provided inside the main pipe 1 and on one side of the groove 12, one end of the movable pipe 3 is fixedly connected to a limiting block 31, and the limiting block 31 is slidably connected inside the limiting groove 11; when the movable pipe 1 3 slides relative to the main pipe 1, the limiting block 31 is driven to slide inside the limiting groove 11, thereby effectively limiting the sliding range of the movable pipe 1 3 and preventing accidental slippage (it should be noted that this structure also exists between the movable pipe 2 4 and the auxiliary pipe 2).

[0033] Furthermore, there are three groups of grooves 12, and three groups of sealing rings 13 are provided correspondingly; the grooves 12 provide installation positions for the sealing rings 13, so that they can be fixed thereon more firmly, thereby providing a more reliable sealing effect. And when the movable tube 13 slides, the grooves 12 will also limit the movement of the sealing rings 13 to ensure that they remain in the correct position. This not only helps to stably install the sealing rings 13, but also effectively prevents the sealing rings 13 from falling off or being misplaced during the sliding process of the movable tube 13; the three groups of sealing rings 13 can achieve a better sealing effect, and even if one group of sealing rings 13 is damaged, the other two groups of sealing rings 13 can still maintain sealing.

[0034] Furthermore, a slot 1 32 is provided at one end of the movable tube 1 3 away from the limit block 31, a slot 2 41 is provided at one end of the movable tube 2 4 away from the auxiliary pipeline 2, and both ends of the filter tube 5 are fixedly connected with plug blocks 51, and one group of plug blocks 51 is inserted into the inside of the slot 1 32, and the other group of plug blocks 51 is inserted into the inside of the slot 2 41; when the movable tube 1 3, the filter tube 5 and the movable tube 2 4 are assembled, the mutual cooperation between the plug blocks 51 and the slot 1 32 and the slot 2 41 can play a positioning role, ensuring that the position of the filter tube 5 after installation is in the correct state.

[0035] Furthermore, sealing rings are bonded to the inner walls of slot one 32 and slot two 41; the plug block 51 is plugged into slot one 32 and slot two 41, so that when the filter tube 5 is installed in place, the plug block 51 will be abutted and sealed with slot one 32 and slot two 41 through the sealing ring, thereby effectively preventing the exhaust steam from flowing out from the gap between the filter tube 5 and the movable tube one 3 and movable tube two 4.

[0036] Furthermore, two groups of locking nuts 35 are provided, one group of locking nuts 35 abuts against the side of the connecting seat 42 away from the fixing seat 33, and the other group of locking nuts 35 abuts against one side of one group of locking nuts 35; the provision of two groups of locking nuts 35 can provide a more uniform fixing force, can reduce the looseness or swinging of the connection, and ensure the firmness of the connection.

[0037] Furthermore, a slide groove 52 is provided on the inner wall of the filter tube 5, and sliders 61 are fixedly connected to both ends of the mounting frame 6, and the slider 61 is connected to the inside of the slide groove 52 on the corresponding side by a slot; the slide groove 52 provides a fixing and positioning function. When assembling the filter tube 5 and the mounting frame 6, it is only necessary to align the slider 61 with the slide groove 52 and insert it. This simple and convenient splicing method makes the installation process more efficient.

[0038] Furthermore, the first-stage filter group 71 is composed of two groups of filter plates 711, and the periphery of the filter plate 711 is fixedly connected with a slip ring 7111. The inner wall of the mounting frame 6 is provided with a mounting groove 62, and the slip ring 7111 is connected to the inside of the mounting groove 62 by a slot; the filter plate 711 is plugged into the inside of the mounting groove 62 through the slip ring 7111, making subsequent maintenance and cleaning more convenient and quick.

[0039] Furthermore, the filter holes opened on the surfaces of the two groups of filter plates 711 are arranged in an interlaced manner and are not in the same straight line; the purpose of this is to increase the filtering area and improve the filtering effect. When the exhaust steam flows through the interlaced filter holes, it does not form a straight flow, but forms more pathways, thereby increasing the chances of capturing and filtering foreign particles or other substances, and to a large extent blocking the escape of foreign particles or other substances, effectively improving the filtering performance. (It should be noted that the secondary filter group 72, the tertiary filter group 73 and the primary filter group 71 have the same structure except for the different filter hole diameters)

[0040] Working principle: In the first step, the exhaust steam discharged from the deaerator first enters the auxiliary pipeline 2 through the outlet pipe, and then flows into the filter tube 5 through the movable pipe 2 4. After multi-stage filtration by the primary filter group 71, the secondary filter group 72 and the tertiary filter group 73, it flows into the exhaust steam recovery device through the movable pipe 1 3, the main pipeline 1 and the air inlet pipe for recovery and treatment.

[0041] The second step is to regularly clean the impurities attached to the surface of the filter plate 7. The specific process of disassembling the filter plate 7 is as follows: first, fix the nut head 341 with a wrench to keep it still, and then use another wrench to loosen the two sets of locking nuts 35. When the locking nuts 35 lose contact with the connecting seat 42, slide the movable tube 1 3 toward the main pipeline 1 and slide the movable tube 2 4 toward the auxiliary pipeline 2 to remove the filter tube 5. Then manually remove the mounting frame 6 from the inside of the filter tube 5, and finally remove the filter plate 7 from the mounting frame 6 to clean the impurities from the filter plate 7.

[0042] In the third step, the filter plate 7 is cleaned and installed. First, connect the slot of the slip ring 7111 on the outside of the filter plate 711 to the inside of the installation slot 62, and then insert the sliders 61 on both sides of the mounting frame 6 into the inside of the slide slot 52, and then place the filter tube 5 between the movable tube 1 3 and the movable tube 2 4. It is necessary to align the plugs 51 at both ends of the filter tube 5 with the slot 1 32 and the slot 2 41 respectively. Then fix the nut head 341 with a wrench, and then use another wrench to tighten the two sets of locking nuts 35 in sequence. As the locking nuts 35 are gradually tightened, the movable tube 1 3 and the movable tube 2 4 move closer to the middle until the filter tube 5 is firmly clamped and fixed on the inside, thus completing the fixation of the filter tube 5.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. An air inlet pipe structure of a deaerator exhaust steam recovery device, characterized in that: The invention comprises a main pipeline (1), a secondary pipeline (2) and a filter tube (5), wherein one end of the main pipeline (1) is connected to one end of an air inlet pipe of an exhaust steam recovery device by a flange, and one end of the secondary pipeline (2) is connected to one end of an air outlet pipe of a deaerator by a flange. A movable tube (3) is slidably connected to the inside of the other end of the main pipeline (1). A groove (12) is provided inside the main pipeline (1), and a sealing ring (13) is movably placed inside the groove (12). The sealing ring (13) is located between the groove (12) and the movable tube (3). The other end of the secondary pipeline (2) is connected to the inside of the movable tube (3). The movable tube (4) is slidably connected to the movable tube (3) and the filter tube (5) is movably connected between the movable tube (3) and the movable tube (4). Both sides of the movable tube (3) close to the filter tube (5) are fixedly connected to a fixing seat (33). One side of the fixing seat (33) is rotatably connected to a threaded rod (34). One end of the threaded rod (34) is fixedly connected to a nut head (341). Both sides of the movable tube (4) close to the filter tube (5) are fixedly connected to a connecting seat (42). A through hole (43) is formed on the surface of the connecting seat (42). The threaded rod (34) is rotatably connected to the filter tube (5). The threaded rod (34) passes through the through hole (43), the outer thread sleeve of the threaded rod (34) is provided with a locking nut (35), the internal slot of the filter tube (5) is connected to a mounting frame (6), the interior of the mounting frame (6) is connected to a filter plate member (7), the filter plate member (7) comprises a primary filter group (71), a secondary filter group (72) and a tertiary filter group (73), and the primary filter group (71), the secondary filter group (72) and the tertiary filter group (73) are all connected to the interior of the mounting frame (6) by a slot, and the primary filter group (71) is arranged near the movable tube second (4 ), the third-stage filter group (73) is arranged on a side close to the movable tube (3), the second-stage filter group (72) is arranged between the first-stage filter group (71) and the second-stage filter group (72), the surfaces of the first-stage filter group (71), the second-stage filter group (72) and the third-stage filter group (73) are all penetrated with filter holes, the diameter of the filter holes opened on the surface of the first-stage filter group (71) is larger than the diameter of the filter holes opened on the surface of the second-stage filter group (72), and the diameter of the filter holes opened on the surface of the second-stage filter group (72) is larger than the diameter of the filter holes opened on the surface of the third-stage filter group (73).

2. The air inlet pipe structure of the deaerator exhaust steam recovery device according to claim 1 is characterized in that: A limiting groove (11) is provided inside the main pipe (1) and on one side of the groove (12); one end of the movable pipe (3) is fixedly connected to a limiting block (31), and the limiting block (31) is slidably connected inside the limiting groove (11).

3. The air inlet pipe structure of the deaerator exhaust steam recovery device according to claim 1, characterized in that: The grooves (12) are provided in three groups, and the sealing rings (13) are provided in three groups accordingly.

4. The air inlet pipe structure of the deaerator exhaust steam recovery device according to claim 1 or 2, characterized in that: The movable tube one (3) is provided with a slot one (32) at one end away from the limit block (31), the movable tube two (4) is provided with a slot two (41) at one end away from the auxiliary pipeline (2), and both ends of the filter tube (5) are fixedly connected with plug blocks (51), and one group of the plug blocks (51) is inserted into the inside of the slot one (32), and the other group of the plug blocks (51) is inserted into the inside of the slot two (41).

5. The air inlet pipe structure of the deaerator exhaust steam recovery device according to claim 4, characterized in that: The inner walls of the slot one (32) and the slot two (41) are both bonded with sealing rings.

6. The air inlet pipe structure of the deaerator exhaust steam recovery device according to claim 1, characterized in that: The locking nuts (35) are provided in two groups, wherein one group of the locking nuts (35) abuts against a side of the connecting seat (42) away from the fixing seat (33), and the other group of the locking nuts (35) abuts against a side of the one group of the locking nuts (35).

7. The air inlet pipe structure of the deaerator exhaust steam recovery device according to claim 1, characterized in that: The inner wall of the filter tube (5) is provided with a slide groove (52), and both ends of the mounting frame (6) are fixedly connected with sliders (61), and the sliders (61) are connected to the inside of the slide groove (52) on the corresponding side by a slot.

8. The air inlet pipe structure of the deaerator exhaust steam recovery device according to claim 1, characterized in that: The primary filter group (71) is composed of two groups of filter plates (711), the periphery of the filter plates (711) is fixedly connected with a slip ring (7111), the inner side wall of the mounting frame (6) is provided with a mounting groove (62), and the slip ring (7111) is connected to the inside of the mounting groove (62) by a slot.

9. The air inlet pipe structure of the deaerator exhaust steam recovery device according to claim 8, characterized in that: The filter holes formed on the surfaces of the two groups of filter plates (711) are arranged in a staggered manner and are not on the same straight line.

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