Waste heat recovery device for boiler deaerator

Abstract

The utility model relates to the technical field of boiler deaerators, in particular to a boiler deaerator waste heat recovery device which comprises a limiting shell, a plurality of installation shells fixedly communicated with one side of the limiting shell, a plurality of limiting barrels fixedly connected to the bottom of the installation shell, first round pipes rotationally connected to the interiors of the limiting barrels, communicating shells arranged in the limiting barrels, and second round pipes rotationally connected to the interiors of the communicating shells. The multiple heat absorption pipes are fixedly communicated with the outer portion of the first round pipe and fixedly communicated with the communicating shell. According to the steam exhaust device, the outer walls of the first round pipes are fixedly communicated with the multiple heat absorption pipes, the multiple heat absorption pipes do not shield each other in the vertical direction, the motor can be started to drive the first round pipes and the heat absorption pipes to rotate synchronously, and the heat absorption pipes above the steam exhaust head are made to rotate continuously; and local overheating of the heat absorption pipes caused by the fact that steam always makes contact with the same heat absorption pipes is avoided, so that reduction of the heat conduction efficiency is avoided, waste heat of the steam can be evenly and stably absorbed, the recovery efficiency of steam heat energy is higher, and use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of boiler deaerator technology, specifically a waste heat recovery device for boiler deaerators. Background Technology

[0002] Boiler deaerators include two types: thermal deaerators and vacuum deaerators. Thermal deaerators work by utilizing the principle that the solubility of dissolved oxygen decreases during water heating. They remove most of the dissolved oxygen by heating the feedwater to a certain temperature, preventing corrosion and damage to boiler equipment and pipes due to oxidation, thus extending their service life. Their advantages include good deaeration efficiency, removing most of the dissolved oxygen from the water. However, their disadvantages include high energy consumption, requiring a large amount of heat energy to be recovered and reused. Spray-type deaerators, a type of thermal deaerator, have multiple external exhaust ports, requiring the deployment of multiple waste heat recovery structures. Unified recovery of steam waste heat from multiple exhaust ports is difficult. Furthermore, some waste heat recovery structures are fixedly connected to the exhaust ports, and their contact position with the steam remains unchanged, easily leading to localized overheating of the heat-absorbing components, resulting in decreased heat absorption efficiency and wasted heat. This makes it inconvenient to uniformly and stably recover steam waste heat, and therefore impractical to use. Utility Model Content

[0003] The purpose of this invention is to provide a waste heat recovery device for boiler deaerators to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A waste heat recovery device for a boiler deaerator, comprising:

[0006] Limiting shell;

[0007] Multiple mounting shells are provided and are fixedly connected to one side of the limiting shell;

[0008] Multiple limit cylinders are provided and fixedly connected to the bottom of the mounting housing;

[0009] One round tube is rotatably connected inside the limiting cylinder;

[0010] A connecting shell is disposed inside the limiting cylinder;

[0011] Multiple heat-absorbing tubes are provided and are fixedly connected to the outside of a circular tube. The heat-absorbing tubes are fixedly connected to the connecting shell.

[0012] The limiting module, located below the limiting shell, can fix the limiting shell.

[0013] The drive module, located inside the limiting shell, is capable of driving the rotation of multiple limiting cylinders.

[0014] Furthermore, the limiting shell is provided with an inlet pipe and a drain pipe on its exterior.

[0015] Furthermore, the top end of the second round tube has a second rotary joint, which is rotatably connected to the water inlet pipe, and the bottom end of the limiting cylinder is fixedly connected to a first rotary joint, which is rotatably connected to the drain pipe.

[0016] Furthermore, the top end of the first round tube is fixedly connected to the second round tube, the top end of the second round tube penetrates the mounting shell and extends to its outside, and multiple connecting tubes are fixedly connected to the outer wall of the second round tube, and the connecting tubes are fixedly connected to the connecting shell.

[0017] Furthermore, the limiting module includes:

[0018] A fixing plate is fixedly connected to the bottom of the limiting shell;

[0019] Multiple docking plates are provided and fixedly connected to the bottom of the limiting shell;

[0020] The second docking plate has multiple sections.

[0021] Multiple L-shaped rods are provided and fixed to the outer wall of the second docking plate;

[0022] Multiple sliding rods are provided and fixed to the inner wall of the L-shaped rod. The sliding rods pass through the docking plate and are slidably connected to it.

[0023] Preferably, both the first docking plate and the second docking plate are fixedly connected to a rectangular plate on their exterior.

[0024] Furthermore, the driving module includes:

[0025] Gear ring, the gear ring being fixedly sleeved on the outside of the two circular tubes;

[0026] Mounting rod one is rotatably connected inside the mounting housing;

[0027] A spur gear is fixedly sleeved on the outside of a mounting rod, and the spur gear meshes with a gear ring.

[0028] The shaft is rotatably connected to the bottom surface inside the limiting housing;

[0029] Bevel gear 1, multiple of which are equidistantly and fixedly sleeved on the outside of the shaft;

[0030] Mounting rod two, which is provided in multiple parts and is equidistantly rotatably connected to the bottom surface of the limiting shell;

[0031] Multiple bevel gears are provided and fixedly sleeved on the top of the mounting rod 2. The bevel gear 2 meshes with the adjacent bevel gear 1.

[0032] Multiple toothed pulleys are provided and are fixedly sleeved on the outside of mounting rod two and mounting rod one. Two adjacent toothed pulleys are connected by a toothed belt drive.

[0033] The motor is fixedly connected to the bottom surface inside the limiting housing, and the output end of the motor is fixedly connected to the shaft.

[0034] Compared with the prior art, the beneficial effects of this utility model are:

[0035] 1. By fixing multiple heat absorption tubes to the outer wall of the circular tube, the multiple heat absorption tubes do not block each other in the vertical direction. When the motor is started, the multiple circular tubes and heat absorption tubes can be driven to rotate synchronously, so that the heat absorption tubes above the exhaust head rotate and change continuously. This avoids the steam from always contacting the same heat absorption tube, which would cause local overheating of the heat absorption tube. This avoids the decrease in heat conduction efficiency, and can uniformly and stably absorb the waste heat of the steam. The recovery efficiency of steam heat energy is higher and it is convenient to use. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0037] Figure 2 This is a schematic diagram of the drainage pipe structure of this utility model;

[0038] Figure 3 This is a side sectional view of the limiting cylinder structure of this utility model;

[0039] Figure 4 This is a schematic diagram of the limiting module structure of this utility model.

[0040] In the diagram: 10. Limiting shell; 11. Mounting shell; 111. Water inlet pipe; 112. Drain pipe; 12. Limiting cylinder; 121. Circular pipe one; 122. Heat absorption pipe; 123. Connecting shell; 124. Rotary joint one; 13. Circular pipe two; 131. Connecting pipe; 132. Rotary joint two; 14. Limiting module; 141. Fixing plate; 142. Connecting plate one; 143. Connecting plate two; 144. L-shaped rod; 145. Sliding rod; 146. Rectangular plate; 15. Drive module; 151. Gear ring; 152. Mounting rod one; 1521. Circular gear; 153. Shaft; 154. Bevel gear one; 155. Mounting rod two; 1551. Bevel gear two; 1552. Toothed pulley; 156. Motor; 20. Deaerator body; 21. Water supply pipe; 22. Exhaust head. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] Please see Figure 1-4 In this embodiment of the present invention, a waste heat recovery device for a boiler deaerator includes a limiting shell 10, multiple mounting shells 11 fixedly connected to one side of the limiting shell 10, multiple limiting cylinders 12 fixedly connected to the bottom of the mounting shell 11, a circular tube 121 rotatably connected to the inside of the limiting cylinder 12, a connecting shell 123 disposed inside the limiting cylinder 12, multiple heat absorption tubes 122 fixedly connected to the outside of the circular tube 121, the heat absorption tubes 122 being fixedly connected to the connecting shell 123, a limiting module 14 disposed below the limiting shell 10 for fixing the limiting shell 10, and a driving module 15 disposed inside the limiting shell 10 for driving the multiple limiting cylinders 12 to rotate.

[0043] Specifically, by fixing multiple heat-absorbing tubes 122 to the outer wall of the circular tube 121, the multiple heat-absorbing tubes 122 do not obstruct each other in the vertical direction. The starting motor 156 can drive the multiple circular tubes 121 and heat-absorbing tubes 122 to rotate synchronously, so that the heat-absorbing tubes 122 above the exhaust head 22 rotate and change continuously. This avoids the steam from always contacting the same heat-absorbing tube 122, which would cause local overheating of the heat-absorbing tube 122. This avoids the decrease in heat conduction efficiency, and can uniformly and stably absorb the waste heat of the steam. The recovery efficiency of steam heat energy is higher and it is convenient to use. Example 1

[0044] like Figure 3 As shown, in this embodiment, the drive module 15 includes a gear ring 151, which is fixedly sleeved on the outside of the second round tube 13. A mounting rod 152 is rotatably connected to the inside of the mounting shell 11. A spur gear 1521 is fixedly sleeved on the outside of the mounting rod 152, meshing with the gear ring 151. A shaft 153 is rotatably connected to the inner bottom surface of the limiting shell 10. Multiple bevel gears 154 are provided, equidistantly fixedly sleeved on the outside of the shaft 153. Multiple mounting rods 155 are provided, equidistantly... The limit housing 10 is rotatably connected to the inner bottom surface. Multiple bevel gears 1551 are provided and fixedly sleeved on the top of the mounting rod 155. The bevel gears 1551 mesh with the adjacent bevel gears 154. Multiple toothed pulleys 1552 are provided and fixedly sleeved on the outside of the mounting rods 155 and 152. Two adjacent toothed pulleys 1552 are connected by a toothed belt drive. The motor 156 is fixedly connected to the inner bottom surface of the limit housing 10. The output end of the motor 156 is fixedly connected to the shaft 153.

[0045] In this embodiment, the starter motor 156 can drive the shaft 153 to rotate, which in turn drives the mounting rod 155 to rotate through the transmission of multiple bevel gears 154 and 1551. The spur gear 1521 is driven to rotate through the transmission of two toothed pulleys 1552. The mounting rod 152 and the toothed ring 151 drive multiple circular tubes 13 and the limiting cylinder 12 to rotate synchronously in the same direction. This causes the heat absorption pipe 122 above the exhaust head 22 to rotate and change continuously, and the heat energy is continuously extracted and collected through circulating water.

[0046] like Figure 1-3 As shown, in this embodiment, the limiting shell 10 is provided with an inlet pipe 111 and a drain pipe 112 on its outside. The top end of the second round pipe 13 has a rotary joint 132, which is rotatably connected to the inlet pipe 111. The bottom end of the limiting cylinder 12 is fixedly connected to a rotary joint 124, which is rotatably connected to the drain pipe 112. The top end of the first round pipe 121 is fixedly connected to the second round pipe 13. The top end of the second round pipe 13 penetrates the mounting shell 11 and extends to its outside. Multiple connecting pipes 131 are fixedly connected to the outer wall of the second round pipe 13, and the connecting pipes 131 are fixedly connected to the connecting shell 123.

[0047] In specific implementation, the water inlet pipe 111 and the drain pipe 112 are connected to the circulating water pipeline to continuously absorb heat energy. The top end of the second circular tube 13 is connected to the water inlet pipe 111 through the second rotary joint 132, and the bottom end of the limiting cylinder 12 is connected to the drain pipe 112 through the first rotary joint 124. This allows for normal water supply inside the limiting cylinder 12 and the second circular tube 13 without affecting their rotation. The second circular tube 13 and the connecting shell 123 are connected through the connecting pipe 131, thus forming a continuous circuit between the limiting cylinder 12 and the second circular tube 13, allowing water to pass through normally. Water enters the second circular tube 13 from the water inlet pipe 111, enters the connecting shell 123 from the connecting pipe 131, and enters the limiting cylinder 12 through multiple heat absorption pipes 122, finally being discharged from the drain pipe 112. The water absorbs moisture from the steam as it passes through the multiple heat absorption pipes 122. Example 2

[0048] Based on Embodiment 1, in order to stably fix the entire device on the top of the deaerator body 20.

[0049] like Figure 4As shown, in this embodiment, the limiting module 14 includes a fixing plate 141, which is fixedly connected to the bottom of the limiting shell 10. Multiple docking plates 142 are provided and fixedly connected to the bottom of the limiting shell 10. Multiple docking plates 143 are provided. Multiple L-shaped rods 144 are provided and fixedly connected to the outer wall of the docking plates 143. Multiple sliding rods 145 are provided and fixedly connected to the inner wall of the L-shaped rods 144. The sliding rods 145 pass through the docking plates 142 and are slidably connected to them. Rectangular plates 146 are fixedly connected to the outside of both docking plates 142 and docking plates 143.

[0050] In specific implementation, when installing the equipment with the deaerator body 20, multiple limiting cylinders 12 are aligned with the exhaust head 22 and then inserted from top to bottom until the two docking plates 142 contact the outer wall of the water supply pipe 21, thereby initially positioning the equipment. The docking plate 142 limits the sliding of the docking plate 143 by limiting the sliding rod 145. The docking plate 143 is slidably connected to the outer wall of the water supply pipe 21. The sliding of the docking plate 143 aligns the adjacent rectangular plates 146. The connection between the docking plate 142 and the water supply pipe 21 is reinforced by bolts passing through the two rectangular plates 146, thereby fixing the entire equipment to the outer wall of the deaerator body 20. Since it is not possible to drill holes in the outer wall of the deaerator body 20, the docking plate 142 is fixed to the outer wall of the water supply pipe 21 to avoid damage to the outer wall of the deaerator body 20 and to stabilize and limit the equipment.

[0051] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A waste heat recovery device for a boiler deaerator, characterized in that, include: Limiting shell (10); The mounting shell (11) is provided in multiple forms and is fixedly connected to one side of the limiting shell (10); Multiple limit cylinders (12) are provided and fixed to the bottom of the mounting shell (11); The first round tube (121) is rotatably connected to the inside of the limiting cylinder (12); The connecting shell (123) is located inside the limiting cylinder (12); Multiple heat-absorbing tubes (122) are provided and are fixedly connected to the outside of the circular tube (121). The heat-absorbing tubes (122) are fixedly connected to the connecting shell (123). The limiting module (14) is located below the limiting shell (10) and can fix the limiting shell (10); The drive module (15) is located inside the limiting shell (10) and can drive multiple limiting cylinders (12) to rotate.

2. The waste heat recovery device for a boiler deaerator according to claim 1, characterized in that, The limiting shell (10) is provided with an inlet pipe (111) and a drain pipe (112) on its exterior.

3. The waste heat recovery device for a boiler deaerator according to claim 2, characterized in that, The top end of the second round tube (13) has a second rotary joint (132), which is rotatably connected to the water inlet pipe (111). The bottom end of the limiting cylinder (12) is fixedly connected to a first rotary joint (124), which is rotatably connected to the drain pipe (112).

4. The waste heat recovery device for a boiler deaerator according to claim 3, characterized in that, The top end of the first round tube (121) is fixedly connected to the second round tube (13). The top end of the second round tube (13) penetrates the mounting shell (11) and extends to its outside. Multiple connecting tubes (131) are fixedly connected to the outer wall of the second round tube (13). The connecting tubes (131) are fixedly connected to the connecting shell (123).

5. The waste heat recovery device for a boiler deaerator according to claim 1, characterized in that, The limiting module (14) includes: A fixing plate (141) is fixedly connected to the bottom of the limiting shell (10); Multiple docking plates (142) are provided and fixed to the bottom of the limiting shell (10); Multiple docking plates (143) are provided; Multiple L-shaped rods (144) are provided and fixed to the outer wall of the second docking plate (143); Multiple slide rods (145) are provided and fixed to the inner wall of the L-shaped rod (144). The slide rods (145) pass through the docking plate (142) and are slidably connected to it.

6. The waste heat recovery device for a boiler deaerator according to claim 5, characterized in that, Both the first docking plate (142) and the second docking plate (143) are fixedly connected to a rectangular plate (146).

7. The waste heat recovery device for a boiler deaerator according to claim 1, characterized in that, The drive module (15) includes: Toothed ring (151), the toothed ring (151) is fixedly sleeved on the outside of the round tube (13); Mounting rod 1 (152) is rotatably connected to the inside of mounting housing (11); A spur gear (1521) is fixedly sleeved on the outside of mounting rod one (152), and the spur gear (1521) meshes with the gear ring (151). The shaft (153) is rotatably connected to the bottom surface of the limiting shell (10); Multiple bevel gears (154) are provided and are fixedly sleeved on the outside of the shaft (153) at equal intervals; Mounting rod 2 (155) is provided in multiple parts and is equidistantly rotatably connected to the bottom surface of the limiting shell (10); Multiple bevel gears (1551) are provided and are fixedly sleeved on the top of the mounting rod (155). The bevel gears (1551) mesh with the adjacent bevel gears (154). Multiple toothed pulleys (1552) are provided and are fixedly sleeved on the outside of mounting rod two (155) and mounting rod one (152). Two adjacent toothed pulleys (1552) are connected by toothed belt drive. The motor (156) is fixed to the bottom surface of the limiting shell (10), and the output end of the motor (156) is fixed to the shaft (153).

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