Waste heat recycling device for deaerator

Abstract

The utility model discloses a waste heat recycling device for a deaerator. The waste heat recycling device comprises the deaerator, a heat exchange frame and a water tank, a waste heat discharging pipe is arranged on one side of the top of the deaerator, and a connecting disc is arranged on the surface of the waste heat discharging pipe. The heat exchange frame is arranged on the outer side of the waste heat discharge pipe; waste heat discharged by the deaerator is used for heating water in the water tank through the heat exchange frame and the heat exchange water pipe, so that the waste heat is recycled, and waste of the waste heat is avoided; a multi-filtering structure is formed by a filtering mechanism in the connecting disc, a filtering ring plate in the waste heat discharging pipe and a filtering net B, impurities in gas can be effectively intercepted through the design, it is ensured that the discharged gas is in a clean state, and pollution of the impurities to the environment is reduced; the filter frame can be pulled out to be cleaned or replaced by unscrewing the blanking cap and pulling the pull plate, the filter ring plate in the waste heat discharge pipe is also convenient to operate through the arc-shaped holding block, the convenience of equipment maintenance is improved, and the service life of the equipment is prolonged.

Description

Technical Field

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

[0002] Deaerators are one of the key pieces of equipment in boilers and heating systems. They are used to remove dissolved oxygen and other gases from feedwater, and to prevent and reduce corrosion of boiler feedwater pipes, economizers and other auxiliary equipment.

[0003] Among the relevant technologies, a solution for a waste heat recovery and reuse device for deaerators (announcement number: CN219014292U) was found through a search. When in use, a waste heat recovery box is installed on the water supply pipeline, which makes it easy to use the hot steam discharged from the deaerator to heat the water supply of the deaerator, realize heat recovery and reuse, reduce heat loss, and eliminate the need for an additional heat exchanger. It is simple, practical and has minimal cost increase.

[0004] However, in the above-mentioned use, attention is usually only paid to the deoxygenation process itself, while the treatment of impurities in the exhaust gas is neglected. When the waste heat is discharged, no effective filtration structure is set up. The exhaust gas directly carries a large number of impurities into the environment, which not only pollutes the surrounding environment, but also affects the surrounding equipment as the gas diffuses, increasing the risk of equipment failure and damage, resulting in increased equipment maintenance costs and shortened service life.

[0005] In view of this, we have introduced a deaerator waste heat recovery and utilization device. Utility Model Content

[0006] The purpose of this invention is to provide a waste heat recovery and utilization device for deaerators to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a waste heat recovery and utilization device for a deaerator, comprising: a deaerator, a heat exchange frame, and a water tank;

[0008] A waste heat discharge pipe is provided on one side of the top of the deaerator. The waste heat discharge pipe is integrally formed with the deaerator. A connecting plate is provided on the surface of the waste heat discharge pipe.

[0009] The heat exchange frame is located outside the waste heat discharge pipe, and the heat exchange water pipe is located inside the heat exchange frame on the surface of the waste heat discharge pipe.

[0010] The water tank is located on one side of the heat exchange frame and is bolted to the side of the heat exchange frame. A water pump is located on the top of the water tank and is bolted to the top of the water tank. An inlet pipe is connected to the top side of the heat exchange pipe and is connected to the water pump.

[0011] The connecting plate is equipped with a filtration mechanism inside, which filters the gas through the filter frame and filter screen A to ensure that the discharged gas is in a clean state.

[0012] Preferably, the filtration mechanism includes a pull plate connected to one side of the filter frame, the pull plate and the filter frame are fixedly connected, the filter frame extends through the waste heat discharge pipe and into the interior of the connecting plate, the filter screen A is connected to the interior of the filter frame, a plug is screwed into the interior of the connecting plate, the external thread on the surface of the plug matches and engages with the internal thread inside the connecting plate, and one side of the plug contacts the pull plate, a recess is connected to one side of the plug, and the recess and the plug are fixedly connected.

[0013] Preferably, the surface of the plug is connected to a limiting block, the limiting block and the plug are fixedly connected, and the inside of the connecting plate is provided with a limiting groove for sliding contact with the limiting block, the limiting groove and the connecting plate are integrally formed.

[0014] Preferably, the surface of the waste heat discharge pipe is fitted with sealing rings at the upper and lower ends of the connecting plate, and the sealing rings are used to seal the connection between the waste heat discharge pipe and the connecting plate to prevent gas leakage.

[0015] Preferably, a filter ring plate is connected inside the waste heat discharge pipe, and a filter screen B is connected to the surface of the filter ring plate. The filter screen B can be detachably connected inside the filter ring plate for easy cleaning and replacement. An arc-shaped grip is connected to one side of the surface of the filter ring plate, and the arc-shaped grip extends to the surface of the waste heat discharge pipe. The arc-shaped grip facilitates pulling the filter ring plate to move the filter screen B out of the interior of the waste heat discharge pipe.

[0016] Preferably, the bottom side of the hot water exchange pipe is connected to an outlet pipe, and the outlet pipe extends into the interior of the water tank to form a circulation.

[0017] Preferably, one side of the water tank is connected to a pipe for conveying and discharging water. The pipe is used to convey water into the water tank and discharge water from the water tank, ensuring that there is enough water in the water tank to participate in the heat exchange process.

[0018] Preferably, positioning blocks are connected to the four corners of the surface of the heat exchange frame, and the positioning blocks are used to fix the heat exchange frame.

[0019] Preferably, the bottom of the deaerator is connected to a support base with anti-slip texture on the bottom of the support base, which can increase the firmness between the support base and the deaerator and prevent slippage.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] (1) The waste heat discharged from the deaerator is used to heat the water in the water tank through the heat exchange frame and the hot water pipe, which realizes the recovery and reuse of waste heat, avoids the waste of waste heat, improves the energy utilization rate of the whole system, and reduces energy consumption and operating costs.

[0022] (2) The filter mechanism in the connecting plate and the filter ring plate and filter screen B inside the waste heat discharge pipe form a multi-layer filter structure. This design can effectively intercept impurities in the gas, ensure that the discharged gas is in a clean state, reduce the pollution of the environment by impurities, and also help the equipment to operate stably, reducing the risk of subsequent equipment being damaged by gas impurities.

[0023] (3) The filter frame can be pulled out for cleaning or replacement by unscrewing the plug and pulling the pull plate. The filter ring plate in the waste heat discharge pipe is also easy to operate through the arc-shaped grip. This design greatly improves the convenience of equipment maintenance, reduces maintenance time and labor costs, and helps to extend the service life of the equipment. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a side sectional view of the heat exchange frame of this utility model.

[0026] Figure 3 This is a schematic diagram of the structure when the filter screen B and the filter ring plate of this utility model are connected;

[0027] Figure 4 This is a side sectional view of the connecting disc of this utility model.

[0028] In the diagram: 1. Deaerator; 2. Support base; 3. Waste heat discharge pipe; 4. Connecting plate; 41. Filter screen A; 42. Filter frame; 43. Pull plate; 44. Plug; 45. Recessed block; 46. Limiting groove; 47. Limiting block; 5. Heat exchange frame; 6. Hot water exchange pipe; 7. Water tank; 8. Pipe; 9. Water pump; 10. Inlet pipe; 11. Outlet pipe; 12. Filter screen B; 13. Positioning block; 14. Filter ring plate; 15. Arc-shaped grip; 16. Sealing ring. Detailed Implementation

[0029] 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.

[0030] Please see Figure 1-4 This utility model provides a technical solution: a waste heat recovery and utilization device for a deaerator, comprising: a deaerator 1, wherein a waste heat discharge pipe 3 is provided on one side of the top of the deaerator 1, and a connecting plate 4 is provided on the surface of the waste heat discharge pipe 3.

[0031] Heat exchange frame 5 is disposed on the outside of waste heat discharge pipe 3, and a hot water pipe 6 is disposed inside the heat exchange frame 5 on the surface of waste heat discharge pipe 3.

[0032] Water tank 7 is located on one side of heat exchange frame 5. Water pump 9 is installed on the top of water tank 7. Water inlet pipe 10 is connected to the top side of heat exchange pipe 6 and water pump 9.

[0033] The connecting plate 4 is equipped with a filtration mechanism, which filters the gas through the filter frame 42 and filter screen A41 to ensure that the discharged gas is in a clean state.

[0034] The filtration mechanism includes a pull plate 43 connected to one side of the filter frame 42. The pull plate 43 is fixedly installed with the filter frame 42. The filter frame 42 extends through the waste heat discharge pipe 3 and into the interior of the connecting plate 4. The filter screen A41 is connected to the interior of the filter frame 42. A plug 44 is screwed into the interior of the connecting plate 4. The external thread on the surface of the plug 44 matches and engages with the internal thread inside the connecting plate 4. One side of the plug 44 contacts the pull plate 43. A recess 45 is connected to one side of the plug 44. The recess 45 is fixedly installed with the plug 44.

[0035] The surface of the plug 44 is connected to a limiting block 47, and the limiting block 47 and the plug 44 are fixedly connected. The inside of the connecting plate 4 is provided with a limiting groove 46 for sliding the limiting block 47, and the limiting groove 46 and the connecting plate 4 are integrally formed.

[0036] The surface of the waste heat discharge pipe 3 is fitted with sealing rings 16 at the upper and lower ends of the connecting plate 4. The sealing rings 16 are used to seal the connection between the waste heat discharge pipe 3 and the connecting plate 4 to prevent gas leakage.

[0037] The waste heat discharge pipe 3 is internally connected to a filter ring plate 14, and a filter screen B12 is connected to the surface of the filter ring plate 14. The filter screen B12 can be detachably connected to the inside of the filter ring plate 14 for easy cleaning and replacement. An arc-shaped grip 15 is connected to one side of the surface of the filter ring plate 14, and the arc-shaped grip 15 extends to the surface of the waste heat discharge pipe 3. The arc-shaped grip 15 facilitates pulling the filter ring plate 14 to move the filter screen B12 out of the inside of the waste heat discharge pipe 3.

[0038] The bottom side of the hot water exchange pipe 6 is connected to a water outlet pipe 11, and the water outlet pipe 11 extends into the interior of the water tank 7 to form a circulation.

[0039] One side of the water tank 7 is connected to a pipe 8 for conveying and discharging water. The pipe 8 is used to convey water into the water tank 7 and to discharge water from the water tank 7, ensuring that there is enough water in the water tank 7 to participate in the heat exchange process.

[0040] Positioning blocks 13 are connected to the four corners of the surface of the heat exchange frame 5. The positioning blocks 13 are used to fix the heat exchange frame 5.

[0041] The bottom of the deaerator 1 is connected to a support base 2. The anti-slip texture on the bottom of the support base 2 can increase the firmness between the support base 2 and the deaerator 1 and prevent slippage.

[0042] Specifically, during operation, the deaerator 1 generates waste heat, which is discharged through the waste heat discharge pipe 3. The heat exchange frame 5 is fitted outside the waste heat discharge pipe 3, and the heat exchange water pipe 6 inside it is arranged around the waste heat discharge pipe 3. After the water pump 9 on one side of the water tank 7 is started, the water in the water tank 7 is pumped into the heat exchange water pipe 6 through the water inlet pipe 10. The water flowing in the heat exchange water pipe 6 exchanges heat with the waste heat gas discharged in the waste heat discharge pipe 3. The heat of the waste heat gas is transferred to the water in the heat exchange water pipe 6, which raises the water temperature. The heated water then flows back to the water tank 7 through the water outlet pipe 11, realizing the recovery and utilization of the waste heat of the deaerator 1, improving the energy utilization rate, and allowing the water source to be recycled so that the water source can be heated to the temperature for subsequent use.

[0043] The filter mechanism inside the connecting plate 4 is used to filter the discharged gas. The filter frame 42 passes through the waste heat discharge pipe 3 and extends into the connecting plate 4. The filter screen A41 is installed inside the filter frame 42. When the waste heat gas is discharged from the waste heat discharge pipe 3 and passes through the connecting plate 4, it first passes through the filter screen A41 to filter impurities in the gas. The plug 44 is screwed into the connecting plate 4 and contacts the pull plate 43. The recess 45 on one side makes it easy to unscrew the plug 44. The limiting block 47 on the surface of the plug 44 cooperates with the limiting groove 46 inside the connecting plate 4. When the plug 44 is unscrewed, it plays a limiting role to prevent the plug 44 from rotating excessively. When it is necessary to clean or replace the filter screen A41, the plug 44 is unscrewed and the filter frame 42 is pulled out through the pull plate 43. The plug 44 and the connecting plate 4 are connected by threads, so the plug 44 can be fixed inside the connecting plate 4 (so that the screw can be inserted into the connecting plate 4 through the limiting block 47 to fix the plug 44).

[0044] In addition to the filter mechanism at the connecting plate 4, the waste heat discharge pipe 3 is also connected to a filter ring plate 14. The filter screen B12 on the surface of the filter ring plate 14 can further filter the waste heat gas, ensuring that the discharged gas is cleaner. The arc-shaped grip 15 extends to the surface of the waste heat discharge pipe 3, making it convenient to operate the filter ring plate 14 by gripping the arc-shaped grip 15 when it is necessary to clean or maintain the filter ring plate 14 and the filter screen B12.

[0045] The pipe 8 on one side of the water tank 7 is used to transport water into the water tank 7 and discharge water from the water tank 7, ensuring that there is enough water in the water tank 7 to participate in the heat exchange process. The positioning blocks 13 at the four corners of the surface of the heat exchange frame 5 can be used to position the heat exchange frame 5 during installation to ensure that its installation position is accurate and easy to cooperate with other components. The support base 2 at the bottom of the deaerator 1 is used to support the deaerator 1 and ensure the stability of the device.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for recovering and utilizing waste heat from a deaerator, characterized in that, include: A deaerator (1) is provided with a waste heat discharge pipe (3) on one side of the top of the deaerator (1), and a connecting plate (4) is provided on the surface of the waste heat discharge pipe (3). A heat exchange frame (5) is provided on the outside of the waste heat discharge pipe (3), and a heat exchange water pipe (6) is provided inside the heat exchange frame (5) on the surface of the waste heat discharge pipe (3). Water tank (7), the water tank (7) is set on one side of heat exchange frame (5), water pump (9) is set on the top of the water tank (7), and water inlet pipe (10) is connected to the top side of the heat exchange pipe (6), and water inlet pipe (10) is connected to water pump (9). The connecting plate (4) is equipped with a filter mechanism inside, which filters the gas through the filter frame (42) and filter screen A (41) of the filter mechanism so that the discharged gas is in a clean state.

2. The deaerator waste heat recovery and utilization device according to claim 1, characterized in that, The filtration mechanism includes a pull plate (43) connected to one side of the filter frame (42). The filter frame (42) extends through the waste heat discharge pipe (3) and into the interior of the connecting plate (4). The filter screen A (41) is connected inside the filter frame (42). A plug (44) is screwed into the interior of the connecting plate (4), and one side of the plug (44) contacts the pull plate (43). A recess (45) is connected to one side of the plug (44).

3. The deaerator waste heat recovery and utilization device according to claim 2, characterized in that, The surface of the plug (44) is connected to a limiting block (47), and the inside of the connecting plate (4) is provided with a limiting groove (46) for sliding the limiting block (47).

4. The deaerator waste heat recovery and utilization device according to claim 1, characterized in that, The surface of the waste heat discharge pipe (3) is fitted with sealing rings (16) at the upper and lower ends of the connecting plate (4).

5. The deaerator waste heat recovery and utilization device according to claim 1, characterized in that, The waste heat discharge pipe (3) is internally connected to a filter ring plate (14), and a filter screen B (12) is connected to the surface of the filter ring plate (14). An arc-shaped grip (15) is connected to one side of the surface of the filter ring plate (14), and the arc-shaped grip (15) extends to the surface of the waste heat discharge pipe (3).

6. The deaerator waste heat recovery and utilization device according to claim 1, characterized in that, The bottom side of the hot water pipe (6) is connected to a water outlet pipe (11), and the water outlet pipe (11) extends into the interior of the water tank (7).

7. The deaerator waste heat recovery and utilization device according to claim 1, characterized in that, One side of the water tank (7) is connected to a pipe (8) for conveying and discharging water.

8. The deaerator waste heat recovery and utilization device according to claim 1, characterized in that, Positioning blocks (13) are connected to the four corners of the surface of the heat exchange frame (5).

9. The deaerator waste heat recovery and utilization device according to claim 1, characterized in that, The bottom of the deaerator (1) is connected to a support base (2).

Images