Boiler steam waste heat recovery device
By designing a boiler steam waste heat recovery device including a fixed cylinder, a movable cylinder, a movable plate and a thermal conduction plate, the problem of inconvenience of anti-countercurrent and insufficient heat recovery and utilization of existing devices is solved, and efficient recovery of steam waste heat and convenient maintenance of the device is achieved.
Patent Information
- Application Number
- CN202421434569.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-06-21
AI Technical Summary
The existing boiler steam waste heat recovery device is not convenient for anti-countercurrent operation, and it is easy to generate negative pressure when the temperature in the boiler is cooled, resulting in the recovered steam being sucked back to the boiler, and the device is not convenient for the steam to fully contact with the thermally conductive structure, resulting in insufficient heat recovery and utilization.
A boiler steam waste heat recovery device is designed, including a fixed cylinder, a movable cylinder, a movable plate and a thermal conduction plate. The steam is transported into the fixed cylinder through the main body of the boiler, and the movable cylinder is driven upwards by using steam, so that the steam is introduced into the conveying pipe and transported to the fixed box, and the heat of the steam is transferred to the water source through the thermal conduction plate, and the structures such as thrust springs and movable plates are used to prevent countercurrents, which is convenient for cleaning of the thermal conduction plate.
The waste heat in boiler steam is fully recovered, countercurrent phenomenon is avoided, and the device structure is easy to clean and maintain.
Smart Images
Figure CN222911604U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of boiler waste heat recovery, in particular to a boiler steam waste heat recovery device. Background Art
[0002] A boiler is an energy conversion device. The energy input to the boiler includes chemical energy in the fuel, electrical energy, steam with a certain amount of thermal energy output by the boiler, high-temperature water or organic heat carrier. During the use of the boiler, more steam is easily generated. Steam has a high heat content, so the boiler steam needs to be preheated and recovered, and a boiler steam waste heat recovery device needs to be used.
[0003] In the prior art, there are the following problems:
[0004] Traditional boiler steam waste heat recovery devices all connect the boiler's steam exhaust pipe with the recovery device through a pipe, so that the boiler directly transports the exhausted steam to the recovery device. However, the existing boiler steam waste heat recovery devices are not convenient for anti-backflow operation. When the temperature in the boiler cools down, negative pressure is easily generated, and the steam recovered in the recovery device is easily sucked into the boiler. At the same time, traditional recovery devices transfer the heat in the steam to the water source to heat the water source, thereby recovering the heat in the steam. However, the existing recovery devices are not convenient for guiding the steam, making the steam fully contact with the heat-conducting structure, making full use of the heat in the steam, and disassembling and cleaning the heat-conducting equipment. Utility Model Content
[0005] The purpose of the utility model is to provide a boiler steam waste heat recovery device to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a boiler steam waste heat recovery device, comprising a boiler body and a support seat fixedly installed at the bottom of the boiler body, the boiler body is provided with a protection component and a recovery component, the protection component comprises a fixed cylinder fixedly installed at the top of the boiler body, a delivery pipe is fixedly connected to one side of the fixed cylinder, a movable cylinder is movably installed inside the fixed cylinder, an air intake groove is opened at the bottom of the movable cylinder, a movable plate is movably installed at the bottom of the movable cylinder, the movable plate is located at the bottom of the air intake groove, a thrust spring is fixedly connected between the top of the movable cylinder and the fixed cylinder, the recovery component comprises a support plate fixedly installed at one side of the support seat, a fixed box is fixedly installed on the top of the support plate, the fixed box is located on one side of the boiler body, the internal limit support of the fixed box is provided with a fixed plate, a plurality of heat conducting plates are fixedly connected to the inner side of the fixed plate, and the plurality of heat conducting plates all penetrate the fixed plate, one end of the delivery pipe is fixedly connected to the fixed box, the delivery pipe is located above the fixed plate, and a movable cover is movably connected to the top of the fixed box.
[0007] When the boiler body is in use, steam is transported to the fixed cylinder, and the movable cylinder is pushed upward by the steam, so that the steam is introduced into the delivery pipe, and the steam is transported to the fixed box by the delivery pipe. By introducing the water source into the fixed box, the water source is located at the bottom of the fixed plate, and the steam is transported to the fixed box through the delivery pipe, so that the steam is located above the fixed plate, the steam can flow to the right in the fixed box, and the steam can contact the heat conduction plate. The heat of the steam is transferred to the water source through the heat conduction plate to heat the water source. The steam can be repeatedly guided back and forth by using the different inclination angles of the heat conduction plate, so that the steam can fully contact the heat conduction plate, and the waste heat in the steam can be fully recovered and utilized. When it is lowered, negative pressure is easily generated in the boiler body. The thrust of the thrust spring is used to push the movable cylinder downward, so that the delivery hole can be blocked, thereby preventing the negative pressure in the boiler body from extracting the steam in the delivery pipe, preventing the steam in the delivery pipe from flowing back, and preventing the steam in the fixed box from being sucked into the boiler body. The negative pressure in the boiler body can make the outside air push the movable plate to flip downward and open, so that the outside air can enter the boiler body through the air inlet groove. When the air pressure in the boiler is normal, the movable plate is flipped upward and reset to seal the air inlet groove. By pulling the movable cover to flip it upward and open it, the fixed plate and the heat conduction plate can be taken out, so that the heat conduction plate can be easily cleaned.
[0008] Preferably, a delivery hole is opened on one side of the fixed cylinder, and the delivery hole corresponds to the delivery pipe. Two sealing rings are fixedly connected to the periphery of the movable cylinder, and the two sealing rings are respectively located above and below the delivery hole. When the movable cylinder moves upward, the two sealing rings are located above the delivery hole, so that the boiler body can guide steam into the delivery pipe through the delivery hole. When the movable cylinder moves downward, the two sealing rings are respectively located above and below the delivery hole, so that the delivery hole can be blocked.
[0009] Preferably, an air inlet is provided at the top of the fixed cylinder, and a protective net is fixedly connected to the inner side of the air inlet. External air can enter the fixed cylinder through the air inlet, and dust and impurities in the external air can be intercepted by the protective net.
[0010] Preferably, the movable plate and the movable cylinder are movably mounted via an axle seat, and a handle is fixedly mounted on the top of the movable cover. The movable plate can be turned over by the axle seat, and the movable cover can be conveniently pulled to turn over, open and close by the handle.
[0011] Preferably, a fixing frame is fixedly installed at the bottom of the inner wall of the movable cylinder, one end of the fixing frame extends above the air inlet slot, and a tension spring is fixedly connected between the movable plate and the fixing frame. The fixing frame can make the tension spring pull the movable plate to flip upward and reset.
[0012] Preferably, a water injection pipe and a water outlet pipe are fixedly installed on the front side of the fixed box, the water outlet pipe is located below the water injection pipe, and the water injection pipe, the water outlet pipe and the fixed box are connected. Water can be injected into the fixed box through the water injection pipe, and the heated water can be discharged through the water outlet pipe.
[0013] Preferably, a support frame is fixedly installed on the inner wall of the fixed box, the support frame is located below the fixed plate, and an air outlet pipe is fixedly installed on one side of the fixed box. The fixed plate can be supported by the support frame, and the air in the fixed box can be discharged through the water outlet pipe.
[0014] The present invention provides a boiler steam waste heat recovery device. Compared with the prior art, the device has the following beneficial effects: by providing a fixed cylinder, a movable cylinder, a movable plate and a heat conducting plate to cooperate with each other, the boiler body is used to deliver steam to the fixed cylinder, the movable cylinder is pushed upward by the steam, and the steam is circulated to the fixed box through the delivery pipe, the water source is injected into the fixed box, and the heat of the steam is transferred to the water source through the heat conducting plate to heat the water source, the steam can be repeatedly guided back and forth by using different inclination angles of the heat conducting plate, the steam can be fully contacted with the heat conducting plate, and the waste heat in the steam can be fully recovered and utilized, when the temperature in the boiler body is reduced, negative pressure is easily generated in the boiler body, and the delivery pipe can be blocked by pushing the movable cylinder to move downward, so as to avoid backflow of steam in the delivery pipe and avoid the situation that the steam in the fixed box is sucked into the boiler body, and the negative pressure in the boiler body can make the movable plate flip downward and open, so that the outside air can enter the boiler body through the air inlet groove. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0016] Figure 2 It is a schematic diagram of the cutaway structure of the fixed cylinder of the utility model;
[0017] Figure 3 It is a schematic diagram of the cutaway structure of the movable cylinder of the utility model;
[0018] Figure 4 This is a three-dimensional structural diagram of a fixed box of the utility model;
[0019] Figure 5 This is a schematic diagram of the cutaway structure of the fixed box of the utility model;
[0020] Figure 6 It is a schematic diagram of the three-dimensional structure of the heat conducting plate of the utility model.
[0021] In the figure: 1. boiler body; 2. support seat; 3. support plate; 4. fixed cylinder; 5. delivery pipe; 6. fixed box; 7. movable cover; 8. movable cylinder; 9. sealing ring; 10. delivery hole; 11. thrust spring; 12. air inlet; 13. protective net; 14. movable plate; 15. shaft seat; 16. air inlet groove; 17. fixed frame; 18. tension spring; 19. outlet pipe; 20. water injection pipe; 21. water outlet pipe; 22. handle; 23. support frame; 24. fixed plate; 25. heat conduction plate. DETAILED DESCRIPTION
[0022] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.
[0023] The utility model provides Figure 1-6 A boiler steam waste heat recovery device shown in the figure comprises a boiler body 1 and a support base 2 fixedly mounted at the bottom of the boiler body 1, a protection component and a recovery component are arranged on the boiler body 1, the protection component comprises a fixed cylinder 4 fixedly mounted on the top of the boiler body 1, a delivery pipe 5 is fixedly connected to one side of the fixed cylinder 4, a movable cylinder 8 is movably mounted inside the fixed cylinder 4, an air inlet groove 16 is provided at the bottom of the movable cylinder 8, a movable plate 14 is movably mounted at the bottom of the movable cylinder 8, the movable plate 14 is located at the bottom of the air inlet groove 16, a thrust spring 11 is fixedly connected between the top of the movable cylinder 8 and the fixed cylinder 4, the recovery component comprises a support plate 3 fixedly mounted on one side of the support base 2, a fixed box 6 is fixedly mounted on the top of the support plate 3, the fixed box 6 is located on one side of the boiler body 1, a fixed plate 24 is provided on the internal limit support of the fixed box 6, a plurality of heat conducting plates 25 are fixedly connected to the inner side of the fixed plate 24, and the plurality of heat conducting plates 25 all penetrate the fixed plate 24, one end of the delivery pipe 5 is fixedly connected to the fixed box 6, the delivery pipe 5 is located above the fixed plate 24, and a movable cover 7 is movably connected to the top of the fixed box 6;
[0024] A delivery hole 10 is opened on one side of the fixed cylinder 4, and the delivery hole 10 corresponds to the delivery pipe 5. Two sealing rings 9 are fixedly connected to the periphery of the movable cylinder 8, and the two sealing rings 9 are respectively located above and below the delivery hole 10;
[0025] An air inlet 12 is provided at the top of the fixed cylinder 4, and a protective net 13 is fixedly connected to the inner side of the air inlet 12;
[0026] The movable plate 14 and the movable cylinder 8 are movably mounted via an axle seat 15, and a handle 22 is fixedly mounted on the top of the movable cover 7;
[0027] A fixing frame 17 is fixedly mounted on the bottom of the inner wall of the movable cylinder 8, one end of the fixing frame 17 extends above the air inlet groove 16, and a tension spring 18 is fixedly connected between the movable plate 14 and the fixing frame 17;
[0028] A water injection pipe 20 and a water outlet pipe 21 are fixedly installed on the front side of the fixed box 6. The water outlet pipe 21 is located below the water injection pipe 20. The water injection pipe 20, the water outlet pipe 21 and the fixed box 6 are in communication.
[0029] A support frame 23 is fixedly mounted on the inner wall of the fixed box 6 , and the support frame 23 is located below the fixed plate 24 . An air outlet pipe 19 is fixedly mounted on one side of the fixed box 6 .
[0030] The working principle of the boiler steam waste heat recovery device according to the embodiment is as follows: when in use, the boiler body 1 delivers steam to the fixed cylinder 4, and the steam is used to push the movable cylinder 8 to move upward, so that the steam is introduced into the delivery pipe 5 through the delivery hole 10, and the delivery pipe 5 is used to deliver the steam to the fixed box 6, and the water injection pipe 20 and the water outlet pipe 21 are respectively connected to the external pipeline, so that the external pipeline introduces the water source into the fixed box 6 through the water injection pipe 20, so that the water source is located at the bottom of the fixed plate 24;
[0031] The steam is transported to the fixed box 6 through the transport pipe 5, so that the steam is located above the fixed plate 24, and the gas in the fixed box 6 is discharged through the gas outlet pipe 19, so that the steam can flow rightward in the fixed box 6, so that the steam contacts the heat conducting plate 25, and the heat of the steam is transferred to the water source through the heat conducting plate 25 to heat the water source. The steam can be repeatedly guided back and forth by using different inclination angles of the heat conducting plate 25, so that the steam can fully contact the heat conducting plate 25, and the residual heat in the steam can be fully recovered and utilized;
[0032] When the temperature in the boiler body 1 is lowered, negative pressure is easily generated in the boiler body 1. The thrust of the thrust spring 11 is used to push the movable cylinder 8 downward, so that the two sealing rings 9 are respectively located above and below the delivery hole 10, and the delivery hole 10 can be blocked to prevent the negative pressure in the boiler body 1 from extracting the steam in the delivery pipe 5, preventing the steam in the delivery pipe 5 from flowing back, and preventing the steam in the fixed box 6 from being sucked into the boiler body 1.
[0033] Through the negative pressure in the boiler body 1, the outside air can push the movable plate 14 to flip downward and open, so that the outside air can enter the fixed cylinder 4 through the air inlet 12, and then the air can enter the boiler body 1 through the air inlet groove 16. The protective net 13 is used to intercept dust and impurities in the air. When the air pressure in the boiler is normal, the movable plate 14 can be pulled upward and reset by the pulling force of the tension spring 18, and the air inlet groove 16 can be sealed. The movable cover 7 is flipped upward and opened by pulling the handle 22, and the fixed plate 24 and the heat conducting plate 25 can be taken out, so that the heat conducting plate 25 can be conveniently cleaned.
[0034] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.
Claims
1. A boiler steam waste heat recovery device, comprising a boiler body (1) and a support base (2) fixedly mounted on the bottom of the boiler body (1), characterized in that: The boiler body (1) is provided with a protection component and a recovery component; The protection assembly comprises a fixed cylinder (4) fixedly mounted on the top of the boiler body (1), a delivery pipe (5) being fixedly connected to one side of the fixed cylinder (4), a movable cylinder (8) being movably mounted inside the fixed cylinder (4), an air inlet groove (16) being provided at the bottom of the movable cylinder (8), a movable plate (14) being movably mounted at the bottom of the movable cylinder (8), the movable plate (14) being located at the bottom of the air inlet groove (16), and a thrust spring (11) being fixedly connected between the top of the movable cylinder (8) and the fixed cylinder (4); The recovery component comprises a support plate (3) fixedly mounted on one side of a support seat (2); a fixed box (6) is fixedly mounted on the top of the support plate (3); the fixed box (6) is located on one side of a boiler body (1); an internal limit support of the fixed box (6) is provided with a fixed plate (24); a plurality of heat conducting plates (25) are fixedly connected to the inner side of the fixed plate (24); the plurality of heat conducting plates (25) all penetrate the fixed plate (24); one end of the delivery pipe (5) is fixedly connected to the fixed box (6); the delivery pipe (5) is located above the fixed plate (24); and a movable cover (7) is movably connected to the top of the fixed box (6).
2. A boiler steam waste heat recovery device according to claim 1, characterized in that: A delivery hole (10) is provided on one side of the fixed cylinder (4), and the delivery hole (10) corresponds to the delivery pipe (5). Two sealing rings (9) are fixedly connected to the periphery of the movable cylinder (8), and the two sealing rings (9) are respectively located above and below the delivery hole (10).
3. A boiler steam waste heat recovery device according to claim 1, characterized in that: An air inlet (12) is provided at the top of the fixed cylinder (4), and a protective net (13) is fixedly connected to the inner side of the air inlet (12).
4. The boiler steam waste heat recovery device according to claim 1, characterized in that: The movable plate (14) and the movable cylinder (8) are movably mounted via an axle seat (15), and a handle (22) is fixedly mounted on the top of the movable cover (7).
5. The boiler steam waste heat recovery device according to claim 1, characterized in that: A fixing frame (17) is fixedly mounted on the bottom of the inner wall of the movable cylinder (8), one end of the fixing frame (17) extends above the air inlet groove (16), and a tension spring (18) is fixedly connected between the movable plate (14) and the fixing frame (17).
6. The boiler steam waste heat recovery device according to claim 1, characterized in that: A water injection pipe (20) and a water outlet pipe (21) are fixedly installed on the front side of the fixed box (6); the water outlet pipe (21) is located below the water injection pipe (20); and the water injection pipe (20), the water outlet pipe (21) and the fixed box (6) are in communication.
7. The boiler steam waste heat recovery device according to claim 1, characterized in that: A support frame (23) is fixedly mounted on the inner wall of the fixed box (6), and the support frame (23) is located below the fixed plate (24). An air outlet pipe (19) is fixedly mounted on one side of the fixed box (6).