Boiler drainage heat recovery system

Abstract

The utility model provides a boiler drainage heat recovery system, and relates to the technical field of boiler drainage. The boiler drainage heat recovery system comprises a chassis used for walking and moving, a recovery equipment main body installed on the upper portion and a filter barrel installed on one side of the recovery equipment main body, and an outer filter cylinder used for temporarily filtering water is arranged in the filter barrel. According to the boiler drainage heat recovery system, the top of the warning rod is blocked through the blocking mechanism to prevent the warning rod from resetting, so that water flow passes between the fixed barrel and the sliding barrel all the time, damage caused by too large water pressure in the filtering assembly is avoided, and a worker can obtain the blocking condition of the filtering assembly by observing the position of the warning rod; the convenience is improved, so that the problems that the internal pressure of a filtering assembly or a pipeline is too large to damage after the existing filtering assembly is blocked, the blocking degree cannot be directly detected, and the use is relatively troublesome are solved.

Description

Technical Field

[0001] This utility model relates to a heat recovery system, specifically a boiler condensate heat recovery system, belonging to the technical field of boiler condensate. Background Technology

[0002] A boiler is an energy conversion device that heats the liquid it contains to certain parameters and withstands a certain pressure by burning fuel or using other energy sources. The boiler heats water or other media by releasing the heat energy from fuel combustion or other energy sources, producing steam, hot water, or organic heat carriers, thereby realizing energy conversion and transfer. Boiler condensate discharge refers to the process of discharging condensate, air, and other non-condensable gases from the steam system during boiler operation. Since condensate usually carries a certain amount of heat, it is generally reintroduced into the boiler for heat recovery.

[0003] The existing Chinese utility model patent, publication number CN221444249U, entitled "A Boiler Drainage Heat Recovery System," includes a base with a fixed frame fixedly connected to its top surface. Telescopic cylinders are fixedly connected to the four sides of the top surface of the fixed frame. This boiler drainage heat recovery system, through the arrangement of a filtration assembly, injects water into the filtration assembly via an inlet pipe. Quartz sand filter cylinders and activated carbon filter cylinders filter the water, thereby achieving the effect of adsorbing and filtering impurities in the water, preventing impurity accumulation from affecting the operation of the equipment.

[0004] While the aforementioned structure solves the problem of impurity accumulation affecting equipment operation, impurities in the water are intercepted by the filter components. However, over time, the filter components will inevitably become clogged. Due to the high water pressure, clogging can easily lead to excessive pressure damage to the filter components or pipes. Therefore, the filter components need to be replaced periodically to ensure normal operation. However, since the concentration of impurities in the water may vary at different times, the degree of clogging can only be determined by the experience of the staff, and the degree of clogging cannot be directly detected, making it quite cumbersome to use. To address these issues, we provide a boiler drain heat recovery system. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a boiler condensate heat recovery system, the specific technical solution of which is as follows:

[0006] A boiler condensate heat recovery system includes a chassis for mobility and a main body of recovery equipment mounted on top, as well as a filter barrel installed on one side of the main body of the recovery equipment. The filter barrel has an outer filter cylinder for temporary water filtration inside, and a filter assembly for normal water filtration inside the outer filter cylinder, thus forming a two-layer filtration structure. A sliding cylinder is detachably connected to the upper part of the filter assembly, and a fixed cylinder is slidably connected to the inner wall of the sliding cylinder. An installation cover is fixedly connected to the upper end of the fixed cylinder. The installation cover is detachably connected to the upper part of the filter barrel. An elastic limiting mechanism is provided between the installation cover and the sliding cylinder. A warning rod is fixedly connected to the upper surface of the sliding cylinder. The upper end of the warning rod passes through the installation cover and is slidably connected to it. A blocking mechanism is provided on one side of the upper end of the warning rod.

[0007] Preferably, the elastic limiting mechanism consists of a limiting rod and a tension spring, with the lower end of the limiting rod fixedly connected to the fixed cylinder and the outer surface of the limiting rod slidably connected to the fixed cylinder.

[0008] Preferably, the upper end of the tension spring is fixedly connected to the mounting cover, and the lower end of the tension spring is fixedly connected to the sliding cylinder.

[0009] Preferably, a support block is fixedly connected to the inner wall of the filter barrel, and a convex ring is integrally connected to the upper end of the outer filter barrel. The upper surface of the support block contacts and supports the convex ring.

[0010] Preferably, an inlet pipe is fixedly installed on the upper end of the mounting cover, and an outlet pipe is fixedly installed on one side of the filter bucket.

[0011] Preferably, the shielding mechanism includes a pressing block, a sliding rod is fixedly connected to one side of the pressing block, a fixing block is slidably connected to the outer surface of the sliding rod, and the lower surface of the fixing block is fixedly connected to the mounting cover.

[0012] Preferably, a spring is fitted onto the outer surface of the sliding rod, one end of the spring is fixedly connected to the fixing block, and the other end of the spring is fixedly connected to the pressing block.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This boiler condensate heat recovery system incorporates external filter cylinders and filter components. When the filter component becomes clogged, the internal water pressure increases, causing the sliding cylinder and its warning rod to move downwards. When the upper surface of the warning rod moves downwards to be flush with the upper surface of the mounting cover, water can flow between the sliding cylinder and the fixed cylinder. Simultaneously, a blocking mechanism blocks the top of the warning rod, preventing it from resetting. This ensures that the water flow remains between the fixed and sliding cylinders, preventing damage from excessive internal water pressure in the filter component. Furthermore, operators can determine the degree of clogging by observing the position of the warning rod, increasing convenience. This solves the problems of existing systems where clogging easily leads to excessive pressure damage to the filter component or pipes, and where the degree of clogging relies solely on operator experience, making direct detection of the blockage difficult and cumbersome.

[0015] 2. This boiler condensate heat recovery system incorporates components such as a spring-loaded limiting mechanism and a blocking mechanism. A tension spring pulls the sliding cylinder upwards, ensuring that the upper end of the sliding cylinder is higher than the lower end of the fixed cylinder when the filter assembly is not clogged. A limiting rod, in conjunction with the fixed cylinder, limits the sliding cylinder to prevent displacement. A spring provides a spring force to the pressing block near the pressing warning rod. When the upper surface of the warning rod slides to be flush with the upper surface of the mounting cover, the pressing block rebounds and blocks the top of the warning rod, preventing it from resetting.

[0016] 3. The boiler condensate heat recovery system uses components such as convex rings, which are supported by support blocks, to support the outer filter cartridge. When needed, the outer filter cartridge can be directly removed. The outer filter cartridge is made of metal and has multiple small holes for temporary filtration. When replacing it, the outer filter cartridge needs to be removed and the inside cleaned. The outer filter cartridge does not need to be replaced; only the filter components need to be replaced to reduce resource consumption. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the filter barrel in this utility model;

[0019] Figure 3 This is a cross-sectional view of the filter bucket in this utility model;

[0020] Figure 4 This is a cross-sectional view of the filter component in this utility model;

[0021] Figure 5 This is a cross-sectional view of the mounting cover in this utility model;

[0022] Figure 6This is a schematic diagram of the exploded internal structure of the filter barrel in this utility model.

[0023] Attached Figure Descriptions: 1. Chassis; 2. Main body of the recycling equipment; 3. Filter barrel; 4. Outer filter cylinder; 5. Fixed cylinder; 6. Sliding cylinder; 7. Filter assembly; 8. Warning bar; 9. Blocking mechanism; 901. Squeezing block; 902. Sliding rod; 903. Fixed block; 904. Spring; 10. Limiting rod; 11. Tension spring; 12. Support block; 13. Protruding ring; 14. Inlet pipe; 15. Outlet pipe; 16. Mounting cover. Detailed Implementation

[0024] The present invention will now be further described with reference to the accompanying drawings.

[0025] Please see Figures 1-6 The system includes a chassis 1 for mobility and a main body 2 for recycling equipment mounted on top, as well as a filter barrel 3 installed on one side of the main body 2. The filter barrel 3 contains an outer filter cylinder 4 for temporary water filtration, and the outer filter cylinder 4 contains a filter assembly 7 for regular water filtration, thus forming a two-layer filtration structure. A sliding cylinder 6 is detachably connected to the upper part of the filter assembly 7. A fixed cylinder 5 is slidably connected to the inner wall of the sliding cylinder 6. A mounting cover 16 is fixedly connected to the upper end of the fixed cylinder 5. The mounting cover 16 is detachably connected to the upper part of the filter barrel 3. A spring-loaded limiting mechanism is provided between the mounting cover 16 and the sliding cylinder 6. A warning rod 8 is fixedly connected to the upper surface of the sliding cylinder 6. The upper end of the warning rod 8 passes through and slidably connects to the mounting cover 16. A blocking mechanism 9 is provided on one side of the upper end of the warning rod 8. The system also includes a chassis 1 and a main body 2 for recycling equipment. 2 and filter barrel 3 are the same as those in the patent with publication number CN221444249U. There are no improvements to the exterior of filter barrel 3. It is the same as the prior art. The outer filter barrel 4 is made of metal and has multiple small holes for temporary filtration. The filter assembly 7 is composed of a quartz sand filter barrel and an activated carbon filter barrel. It is the same as the prior art and can effectively filter water. The mounting cover 16 is fixed to the filter barrel 3 by threads. It can be unscrewed and disassembled when needed. It can also be fixed by bolts. As long as it can achieve the effect of disassembly and fixation, it is acceptable. The contact position between the mounting cover 16 and the filter barrel 3 is sealed. For example, a sealing sleeve is added. The upper end of the warning rod 8 is painted. It can be a bright color such as yellow or red. The filter assembly 7 is connected to the sliding cylinder 6 by a threaded rotation. It can be unscrewed for replacement.

[0026] The elastic limiting mechanism consists of a limiting rod 10 and a tension spring 11. The lower end of the limiting rod 10 is fixedly connected to the fixed cylinder 5, and the outer surface of the limiting rod 10 is slidably connected to the fixed cylinder 5. There are multiple limiting rods 10. By cooperating with the fixed cylinder 5, the sliding cylinder 6 can be limited, so that the center line of the sliding cylinder 6 always coincides with the center line of the fixed cylinder 5 during the up and down movement, thus preventing deviation.

[0027] The upper end of the tension spring 11 is fixedly connected to the mounting cover 16, and the lower end of the tension spring 11 is fixedly connected to the sliding cylinder 6. The sliding cylinder 6 can be pulled upward by the tension spring 11, so that when the filter assembly 7 is not blocked, the upper end of the sliding cylinder 6 is higher than the lower end of the fixed cylinder 5.

[0028] The inner wall of the filter barrel 3 is fixedly connected to a support block 12, and the upper end of the outer filter barrel 4 is integrally connected to a protruding ring 13. The upper surface of the support block 12 contacts and supports the protruding ring 13. The support block 12 supports the protruding ring 13, thereby supporting the outer filter barrel 4. When needed, the outer filter barrel 4 can be directly removed.

[0029] An inlet pipe 14 is fixedly installed on the upper end of the mounting cover 16, and an outlet pipe 15 is fixedly installed on one side of the filter bucket 3. A valve is installed on the inlet pipe 14 for water to enter. After various filtration processes, the water flows out at the outlet pipe 15.

[0030] The shielding mechanism 9 includes a pressing block 901. A sliding rod 902 is fixedly connected to one side of the pressing block 901. A fixing block 903 is slidably connected to the outer surface of the sliding rod 902. The lower surface of the fixing block 903 is fixedly connected to the mounting cover 16. The pressing block 901 can move, and the sliding rod 902 prevents the pressing block 901 from shifting.

[0031] A spring 904 is sleeved on the outer surface of the sliding rod 902. One end of the spring 904 is fixedly connected to the fixed block 903, and the other end of the spring 904 is fixedly connected to the squeezing block 901. The spring 904 provides a spring force to the squeezing block 901 close to the squeezing warning rod 8. When the upper surface of the warning rod 8 slides to be flush with the upper surface of the mounting cover 16, the upper end of the sliding cylinder 6 is lower than the lower end of the fixed cylinder 5. Water can flow between the sliding cylinder 6 and the fixed cylinder 5 to avoid excessive water pressure. At the same time, the bottom of the filter assembly 7 just presses against the inner bottom wall of the outer filter cylinder 4 to limit and prevent further downward movement. The squeezing block 901 rebounds and blocks the top of the warning rod 8 to prevent it from resetting.

[0032] In use, water enters the filter bucket 3 through the inlet pipe 14, passes through the filter assembly 7 and the outer filter cylinder 4, and then flows out through the outlet pipe 15, thus achieving the purpose of filtration. When the filter assembly 7 is blocked, the water flow rate decreases, while the water supply rate through the inlet pipe 14 remains unchanged, resulting in a higher internal water pressure in the filter assembly 7. This causes the filter assembly 7 to be squeezed downwards, thereby driving the sliding cylinder 6 and the warning rod 8 on it to move downwards. A sealing ring is present at the contact point between the warning rod 8 and the mounting cover 16, as shown in the figure, to prevent leakage. When the upper surface of the warning rod 8 moves downwards to the upper surface of the mounting cover 16... When the surfaces are flush, the upper end of the sliding cylinder 6 is lower than the lower end of the fixed cylinder 5, allowing water to flow between the sliding cylinder 6 and the fixed cylinder 5, thus preventing excessive water pressure. At the same time, the blocking mechanism 9 blocks the top of the warning rod 8 to prevent it from resetting, thereby limiting the sliding cylinder 6 and ensuring that the water flow always passes between the fixed cylinder 5 and the sliding cylinder 6, preventing excessive water pressure inside the filter assembly 7 from causing damage. At this time, temporary filtration is performed through the outer filter cylinder 4. If the staff finds that the warning rod 8 has shortened, they can immediately carry out internal repairs and replace the filter assembly 7. By observing the position of the warning rod 8, the blockage status of the filter assembly 7 can be determined, increasing convenience.

[0033] When replacing the filter cartridge 4, the outer filter cartridge 4 needs to be removed and the inside cleaned. The outer filter cartridge 4 does not need to be replaced; only the filter assembly 7 needs to be replaced to reduce resource consumption.

[0034] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.

Claims

1. A boiler drain heat recovery system comprising a chassis (1) for walking movement and an upper mounted recovery device body (2), and a filter bucket (3) mounted on one side of the recovery device body (2), characterized in that: The inner part of the filter barrel (3) is provided with an outer filter cylinder (4) for temporarily filtering water, the inner part of the outer filter cylinder (4) is provided with a filter assembly (7) for normally filtering water, thereby forming a two-layer filtering structure, the upper part of the filter assembly (7) is detachably connected with a sliding cylinder (6), the inner wall of the sliding cylinder (6) is slidingly connected with a fixed cylinder (5), the upper end of the fixed cylinder (5) is fixedly connected with a mounting cover (16), the mounting cover (16) is detachably connected with the upper part of the filter barrel (3), a elastic limiting mechanism is arranged between the mounting cover (16) and the sliding cylinder (6), the upper surface of the sliding cylinder (6) is fixedly connected with a warning rod (8), the upper end of the warning rod (8) penetrates through and is slidingly connected with the mounting cover (16), one side of the upper end of the warning rod (8) is provided with a shielding mechanism (9).

2. A boiler drain heat recovery system according to claim 1, wherein: The elastic limiting mechanism is a limiting rod (10) and a tension spring (11), the lower end of the limiting rod (10) is fixedly connected with the fixed cylinder (5), and the outer surface of the limiting rod (10) is slidingly connected with the fixed cylinder (5).

3. A boiler drain heat recovery system according to claim 2, wherein: The upper end of the tension spring (11) is fixedly connected with the mounting cover (16), and the lower end of the tension spring (11) is fixedly connected with the sliding cylinder (6).

4. A boiler drain heat recovery system according to claim 1, wherein: The inner wall of the filter barrel (3) is fixedly connected with a supporting block (12), the upper end of the outer filter cylinder (4) is integrally connected with a convex ring (13), and the upper surface of the supporting block (12) is in contact with and supports the convex ring (13).

5. A boiler drain heat recovery system according to claim 1, wherein: The upper end of the mounting cover (16) is fixedly connected with a water inlet pipe (14), and one side of the filter barrel (3) is fixedly connected with a water outlet pipe (15).

6. A boiler drain heat recovery system according to claim 1, wherein: The shielding mechanism (9) comprises a pressing block (901), one side of the pressing block (901) is fixedly connected with a sliding rod (902), the outer surface of the sliding rod (902) is slidingly connected with a fixed block (903), and the lower surface of the fixed block (903) is fixedly connected with the mounting cover (16).

7. A boiler drain heat recovery system as set forth in claim 6 wherein: The outer surface of the sliding rod (902) is sleeved with a spring (904), one end of the spring (904) is fixedly connected with the fixed block (903), and the other end of the spring (904) is fixedly connected with the pressing block (901).

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