Periodic boiler blowdown device

Abstract

The utility model discloses a kind of boiler periodic blowdown device, it is related to mechanical engineering technical field.A kind of boiler periodic blowdown device, including boiler main body, connecting pipe, blowdown valve main body, blowdown pipe and filter tube, limit component is set on filter tube, limit component includes sliding seat, filter screen and two lugs, two lugs are fixedly installed on the outer wall of filter tube, the outer wall of filter tube is equipped with sliding seat sliding slot, by pushing the push block in limit component and drive limit block sliding in second limit block slot, compression reset spring, when limit block exits from the first limit block slot of lug, remove the fixed connection of sliding seat and filter tube, sliding seat and filter screen are taken off from filter tube at this time, such disassembly filter screen simple and fast, effectively improve the disassembly efficiency of filter screen, reduce the workload of staff simultaneously, avoid operator to expend a lot of time and energy to disassembly filter screen.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, and in particular to a boiler periodic blowdown device. Background Technology

[0002] In the fields of industrial production and energy supply, boilers, as core thermal equipment, are widely used in industries such as power, chemical, and heating. During boiler operation, minerals dissolved in the water, rust in the pipelines, and impurities generated during system operation will continuously accumulate. If these impurities are not discharged in time, they will lead to scaling on the boiler heating surface, poor water circulation, and even serious safety accidents such as tube rupture. Therefore, the performance of the periodic blowdown device is an important component to ensure the safe and stable operation of the boiler, and its performance is directly related to the service life and production efficiency of the boiler.

[0003] Currently, common boiler blowdown systems mainly consist of blowdown valves, blowdown pipes, and blowdown headers. During the blowdown process, these devices use the internal pressure of the boiler to discharge impurities deposited in the bottom areas such as the lower header and manifold. However, in the impurity treatment stage of existing blowdown systems, the impurity particles discharged from the blowdown pipes vary in size, and some small impurities easily adhere to the inner wall of the pipes. Long-term accumulation can lead to narrowing of the pipe's inner diameter, increasing fluid resistance, reducing blowdown efficiency, and even causing pipe blockage. Therefore, existing technologies use fixed filter screens in the blowdown pipes to intercept impurities and protect downstream equipment. However, the fixed filter screens are connected to the blowdown pipes using bolts, which are difficult to disassemble. When the amount of impurities trapped on the filter screen reaches a certain level, the filter screen pores become blocked, causing a sharp increase in blowdown resistance and seriously affecting blowdown efficiency. At this point, operators need to spend a lot of time and effort to clean or replace the filter screens, and may even need to disassemble parts of the pipes, increasing maintenance costs and downtime. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a boiler periodic blowdown device that can solve the problem of the fixed filter screen and blowdown pipe being connected by bolts and difficult to disassemble. When the impurities trapped on the filter screen reach a certain amount, the filter screen pores become blocked, resulting in a sharp increase in blowdown resistance and seriously affecting blowdown efficiency. At this time, the operator needs to spend a lot of time and energy to clean or replace the filter screen, and may even need to disassemble part of the pipe, which increases maintenance costs and downtime.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a boiler periodic blowdown device, comprising a boiler body, a connecting pipe, a blowdown valve body, a blowdown pipe and a filter pipe, wherein a limit component is provided on the filter pipe; The limiting component includes a sliding seat, a filter screen, and two protrusions. Both protrusions are fixedly installed on the outer wall of the filter tube. The outer wall of the filter tube is provided with a sliding seat groove. The filter screen is fixedly installed on the inner wall of the sliding seat. Two first limiting block grooves are provided on the outer wall of the opposite side of the two protrusions. Two push block grooves are provided on the upper surface of the upper surface of the protrusions on the sliding seat. The two push block slots each have two push blocks slidably connected inside. The upper surface of the sliding seat has two second limit block slots on both sides of the outer wall of the protrusion. The four second limit block slots each have limit blocks slidably connected inside. The two push block slots each have a reset spring inside. The two push block slots each have a limit block slidably engaged inside.

[0006] Preferably, the outer wall of the sliding seat is slidably connected to the inside of the sliding seat groove; Among them, the ends of the four limiting blocks near the first limiting block groove all slide into the interior of the sliding seat groove and are respectively slidably connected to the interior of the corresponding first limiting block groove.

[0007] Preferably, the interiors of the two push block grooves are respectively connected to the interiors of the corresponding second limiting block grooves; Among them, the ends of the four push blocks that are close to the limiting blocks all slide into the interior of the second limiting block groove and are fixedly connected to the outer wall of the corresponding limiting blocks.

[0008] Preferably, the two ends of the two return springs are fixedly connected to one side of the outer wall of the corresponding push block; The outer walls at both ends of the two limiting blocks are in contact with the outer wall on one side of the corresponding push block.

[0009] Preferably, the drain pipe is fixedly installed at the lower end of the boiler body, and the connecting pipe is L-shaped; The lower end of the sewage pipe is connected to the upper end of the connecting pipe via a flange and bolts.

[0010] Preferably, the inlet end of the drain valve body is connected to the lower end of the connecting pipe via a flange and bolts; One end of the filter pipe is connected to the outlet end of the drain valve body via a flange and bolts.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. The boiler's periodic blowdown device uses a pusher block in the limiting assembly to drive the limiting block to slide in the second limiting block groove, compressing the return spring. When the limiting block exits from the first limiting block groove of the protrusion, the fixed connection between the sliding seat and the filter tube is released. At this time, the sliding seat and filter screen can be removed from the filter tube. This makes disassembling the filter screen simple and quick, effectively improving the efficiency of filter screen disassembly, while reducing the workload of the staff and avoiding the need for operators to spend a lot of time and energy to disassemble the filter screen. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the external structure of the connecting pipe of this utility model; Figure 3 This is a schematic diagram of the external structure of the filter tube of this utility model; Figure 4 This utility model Figure 2 A structural schematic diagram of the enlarged view at point A in the middle.

[0013] Reference numerals in the attached drawings: 1. Boiler body; 2. Connecting pipe; 3. Drain valve body; 4. Filter pipe; 5. Sliding seat; 6. Sliding seat groove; 7. Drain pipe; 8. First limiting block groove; 9. Protrusion; 10. Filter screen; 11. Limiting block; 12. Second limiting block groove; 13. Limiting block; 14. Push block; 15. Return spring; 16. Push block groove. Detailed Implementation

[0014] 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.

[0015] 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 relationship based on the directional or positional relationship 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.

[0016] 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.

[0017] 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.

[0018] Please see Figure 1-4 This utility model provides a technical solution: a boiler periodic blowdown device, including a boiler body 1, a connecting pipe 2, a blowdown valve body 3, a blowdown pipe 7, and a filter pipe 4; A limit component is provided on filter tube 4; The limiting assembly includes a sliding seat 5, a filter screen 10, and two protrusions 9. Both protrusions 9 are fixedly installed on the outer wall of the filter tube 4. A sliding seat groove 6 is formed on the outer wall of the filter tube 4. The outer wall of the sliding seat 5 is slidably connected to the interior of the sliding seat groove 6. The filter screen 10 is fixedly installed on the inner wall of the sliding seat 5. Two first limiting block grooves 8 are formed on the outer wall of each of the opposite sides of the two protrusions 9. Two push block grooves 16 are formed on the upper surface of each of the protrusions on the upper surface of the sliding seat 5. Two push blocks 14 are slidably connected inside each of the two push block grooves 16. Two second limiting block grooves 12 are formed on both sides of the outer wall of each of the four second limiting block grooves 12. Limiting blocks 11 are slidably connected inside each of the four limiting blocks 11. One end of each of the four push blocks 14 near the limit block 11 slides into the interior of the sliding seat groove 6 and is slidably connected to the interior of the corresponding first limit block groove 8. The interiors of the two push block grooves 16 are respectively connected to the interiors of the corresponding second limit block grooves 12. One end of each of the four push blocks 14 near the limit block 11 slides into the interior of the second limit block groove 12 and is respectively fixedly connected to the outer wall of the corresponding limit block 11. The interiors of the two push block grooves 16 are each provided with a return spring 15. The two ends of the two return springs 15 are respectively fixedly connected to the outer wall of one side of the corresponding push block 14. The interiors of the two push block grooves 16 are each slidably engaged with a limit block 13. The outer walls of the two limit blocks 13 are respectively in contact with the outer wall of one side of the corresponding push block 14.

[0019] Among them, the sewage pipe 7 is fixedly installed at the lower end of the boiler body 1, the connecting pipe 2 is "L" shaped, the lower end of the sewage pipe 7 is connected to the upper end of the connecting pipe 2 through flange and bolt, the water inlet end of the sewage valve body 3 is connected to the lower end of the connecting pipe 2 through flange and bolt, and one end of the filter pipe 4 is connected to the water outlet end of the sewage valve body 3 through flange and bolt.

[0020] Furthermore, when using this device, firstly, the drain pipe 7 is fixedly installed at the lower end of the boiler body 1 using flanges and bolts. The connecting pipe 2 is L-shaped, with its upper end connected to the lower end of the drain pipe 7 using flanges and bolts, and its lower end connected to the inlet end of the drain valve body 3 in the same way. One end of the filter pipe 4 is connected to the outlet end of the drain valve body 3 using flanges and bolts, completing the installation and connection of the entire drain device. During installation, ensure that the flange connections between all components are tight to prevent leakage. Then, open the drain valve body 3, and the sewage in the boiler body 1 flows into the connecting pipe through the drain pipe 7 under pressure. 2. The wastewater then enters the filter pipe 4 through the main body 3 of the drain valve. When the wastewater passes through the filter pipe 4, the impurities in it are intercepted by the filter screen 10. The filtered wastewater is discharged through the filter pipe 4. Then, when it is necessary to clean or replace the filter screen 10, pull the handle on the limit block 13 to remove it from the inside of the push block groove 16. Then push the push block 14. The push block 14 drives the limit block 11 to slide in the second limit block groove 12, compressing the reset spring 15. When the limit block 11 exits from the first limit block groove 8 of the protrusion 9, the fixed connection between the sliding seat 5 and the filter pipe 4 is released. At this time, the sliding seat 5 and the filter screen 10 are removed from the filter pipe 4.

[0021] The pusher 14 in the limiting assembly drives the limiting block 11 to slide in the second limiting block groove 12, compressing the reset spring 15. When the limiting block 11 exits from the first limiting block groove 8 of the protrusion 9, the fixed connection between the sliding seat 5 and the filter tube 4 is released. At this time, the sliding seat 5 and the filter screen 10 are removed from the filter tube 4. This makes the disassembly of the filter screen 10 simple and quick, effectively improving the disassembly efficiency of the filter screen 10, while reducing the workload of the staff and avoiding the need for the operator to spend a lot of time and energy to disassemble the filter screen 10.

[0022] Structural Description: Boiler Body 1: As the core equipment carrier of the entire blowdown system, it is the place where steam or hot water is generated. The blowdown pipe 7 is fixedly installed at its lower end to discharge the scale, impurities and other waste generated during boiler operation. It is the starting point of the blowdown process. Connecting pipe 2: Connecting pipe 2 is L-shaped and serves to connect the drain pipe 7 and the drain valve body 3. The lower end of the drain pipe 7 is connected to the upper end of the connecting pipe 2 through a flange and bolts. The water inlet end of the drain valve body 3 is connected to the lower end of the connecting pipe 2 through a flange and bolts. This ensures that the connections between the components are tight, prevents leakage during the draining process, and ensures a smooth draining process. The main body of the blowdown valve 3 is a key component for controlling the blowdown process. Its inlet end is connected to the blowdown pipe 7 through the connecting pipe 2, and its outlet end is connected to the filter pipe 4 through the flange and bolts. By opening and closing the main body of the blowdown valve 3, the start and stop of boiler blowdown can be controlled, the blowdown flow rate can be adjusted, and the safety and effectiveness of the blowdown operation can be ensured. Filter pipe 4: Used to filter the discharged sewage and remove larger impurities. A sliding seat groove 6 is provided on the outer wall for installing the sliding seat 5. Two protrusions 9 are fixedly installed on the outer wall. The protrusions 9 have a first limiting block groove 8, which cooperates with the limiting block 11 to fix the sliding seat 5. One end is connected to the outlet end of the sewage valve body 3 through a flange and bolts, so that the sewage passing through the sewage valve body 3 flows into the filter pipe 4 for filtration. Sliding seat 5: The outer wall is slidably connected to the sliding seat groove 6 of the filter tube 4, and can slide on the filter tube 4. The inner wall is fixedly installed with filter screen 10 for installing and fixing filter screen 10. The upper surface protrusion has a push block groove 16 and a second limit block groove 12 for installing push block 14, limit block 11 and reset spring 15. By cooperating with the first limit block groove 8 on the protrusion 9, the sliding seat 5 can be fixed and unlocked on the filter tube 4. Filter screen 10: It is fixedly installed on the inner wall of the sliding seat 5 and is the core component of the filter tube 4 to realize the filtration function. It is used to intercept impurities in sewage, prevent impurities from clogging the sewage pipe, and facilitate the cleaning of intercepted impurities. Protrusion 9: There are two protrusions 9, which are fixedly installed on the outer wall of the filter tube 4. Two first limiting block grooves 8 are opened on the outer wall of the opposite side, which cooperate with the limiting block 11 on the sliding seat 5. When the limiting block 11 is inserted into the first limiting block groove 8, the sliding seat 5 and the filter tube 4 are fixed. Push block 14: There are four push blocks 14, which are slidably connected inside the two push block slots 16. One end is fixedly connected to the limit block 11 and is used to push the limit block 11 to slide in the second limit block slot 12. The other end is connected to the reset spring 15 and can be reset under the action of the reset spring 15. By pushing the push block 14, the limit block 11 can be moved to realize the unlocking and fixing operation of the sliding seat 5. Limiting block 11: There are four limiting blocks 11, which are slidably connected inside the four second limiting block grooves 12 respectively. One end is fixedly connected to the push block 14, and the other end can slide to the sliding seat groove 6 and cooperate with the first limiting block groove 8 on the protrusion 9. Under the action of the return spring 15 and the push block 14, the limiting block 11 can extend or retract into the second limiting block groove 12. When it extends, it is locked into the first limiting block groove 8 to fix the sliding seat 5. When it retracts, it releases the fixation, which facilitates the disassembly and movement of the sliding seat 5. Reset spring 15: There are two reset springs 15, which are respectively set inside the two push block slots 16. The two ends are respectively fixedly connected to one side of the outer wall of the corresponding push block 14. The reset spring 15 provides elastic reset force for the push block 14. When the push block 14 is pushed to make the limit block 11 slide, the push block 14 is released, and the reset spring 15 can push the push block 14 and the limit block 11 to reset, so that the limit block 11 is re-engaged into the first limit block slot 8, thereby fixing the sliding seat 5. Limiting blocks 13: There are two limiting blocks 13, which are slidably engaged in the two push block slots 16 respectively. The outer walls at both ends are in contact with the outer wall of one side of the corresponding push block 14. They are used to limit the sliding range of the push block 14, prevent the push block 14 from sliding when it is not subjected to external force, ensure the stability of the limiting component structure, and thus ensure the reliability of the sliding seat 5. Sewage pipe 7: Fixedly installed at the lower end of the boiler body 1, it is a channel connecting the boiler body 1 and the connecting pipe 2. It is used to transport sewage in the boiler body 1 to the connecting pipe 2, and then discharge it through the sewage valve body 3 and the filter pipe 4.

[0023] 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 boiler periodic blowdown device, comprising a boiler body (1), a connecting pipe (2), a blowdown valve body (3), a blowdown pipe (7), and a filter pipe (4), characterized in that: A limit component is provided on the filter tube (4); The limiting component includes a sliding seat (5), a filter screen (10) and two protrusions (9). The two protrusions (9) are fixedly installed on the outer wall of the filter tube (4). The outer wall of the filter tube (4) is provided with a sliding seat groove (6). The filter screen (10) is fixedly installed on the inner wall of the sliding seat (5). Two first limiting block grooves (8) are provided on the outer wall of the opposite side of the two protrusions (9). Two push block grooves (16) are provided on the upper surface of the protrusions on the upper surface of the sliding seat (5). Among them, two push blocks (14) are slidably connected inside the two push block slots (16), two second limit block slots (12) are opened on both sides of the outer wall of the upper surface of the sliding seat (5), and limit blocks (11) are slidably connected inside the four second limit block slots (12). A reset spring (15) is provided inside the two push block slots (16), and a limit block (13) is slidably engaged inside the two push block slots (16).

2. The boiler periodic blowdown device according to claim 1, characterized in that: The outer wall of the sliding seat (5) is slidably connected to the inside of the sliding seat groove (6); Among them, the four limiting blocks (11) extend into the interior of the sliding seat groove (6) at the end near the first limiting block groove (8) and are respectively slidably connected to the interior of the corresponding first limiting block groove (8).

3. The boiler periodic blowdown device according to claim 1, characterized in that: The interiors of the two push block grooves (16) are respectively connected to the interiors of the corresponding second limiting block grooves (12); Among them, the ends of the four push blocks (14) near the limiting block (11) all slide into the interior of the second limiting block groove (12) and are fixedly connected to the outer wall of the corresponding limiting block (11).

4. A boiler periodic blowdown device according to claim 1, characterized in that: The two ends of the two reset springs (15) are respectively fixedly connected to one side of the outer wall of the corresponding push block (14); Among them, the outer walls at both ends of the two limiting blocks (13) are in contact with the outer wall on one side of the corresponding push block (14).

5. A boiler periodic blowdown device according to claim 1, characterized in that: The drain pipe (7) is fixedly installed at the lower end of the boiler body (1), and the connecting pipe (2) is L-shaped; The lower end of the sewage pipe (7) is connected to the upper end of the connecting pipe (2) by means of a flange and bolts.

6. A boiler periodic blowdown device according to claim 1, characterized in that: The inlet end of the main body (3) of the drain valve is connected to the lower end of the connecting pipe (2) by a flange and bolts; One end of the filter pipe (4) is connected to the outlet end of the drain valve body (3) through a flange and bolts.

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