Waste heat recovery device
By designing a disturbance and uniform air intake device in the waste heat recovery unit, the problem of small contact area between high-temperature exhaust gas and water pipes was solved, achieving full heat recovery and uniform water temperature mixing, thus improving the efficiency of waste heat utilization.
Patent Information
- Application Number
- CN202422371011.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-09-27
AI Technical Summary
In existing waste heat recovery devices, the contact area between high-temperature exhaust gas and water pipes is small, resulting in insufficient heat recovery, and insufficient water flow disturbance leads to poor heat mixing effect.
A waste heat recovery device was designed, comprising an outer cylinder, a baffle plate, a heat recovery pipe, a disturbance device, and a uniform air intake device. The disturbance device agitates the water, and the uniform air intake device distributes the high-temperature exhaust gas evenly, thereby achieving full heat transfer and uniform mixing of water temperature.
It improves heat recovery efficiency and water temperature uniformity, ensuring full utilization of heat and improving the heat mixing effect.
Smart Images
Figure CN223596600U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of waste heat recovery, and particularly relates to a waste heat recovery device. BACKGROUND
[0002] One important application of distributed energy is heat and power cogeneration or cold, heat and power combined tri-generation of generator sets, and heat and power cogeneration is mainly used for waste heat recovery of high-temperature cylinder jacket water and high-temperature tail gas of a gas generator set, and the waste heat is converted into hot water or other forms of heat energy through matched equipment to meet the heat load demand of customers.
[0003] In the prior art, when waste heat is recovered from high-temperature tail gas, the high-temperature tail gas pipeline is directly connected with the water pipeline to recover and utilize heat, but there are some deficiencies: the water pipeline is relatively long, the contact surface between the high-temperature tail gas and the water pipeline is small, heat cannot be fully recovered, and the water in the pipeline lacks disturbance, so the heat mixing effect is not good, and therefore, improvement is needed. UTILITY MODEL CONTENTS
[0004] The utility model wants to solve the technical problem that the contact surface between the existing waste heat recovery pipeline and the high-temperature tail gas is small, heat cannot be fully recovered, the water in the pipeline lacks disturbance, and the heat mixing effect of the hot water in the pipeline is not good.
[0005] In order to realize the above functions, the utility model adopts the following technical scheme: a waste heat recovery device, comprising an outer cylinder, a partition plate is fixedly connected to the inner wall of the outer cylinder, a heat recovery pipeline is fixedly connected to the partition plate, water inlet pipes and water outlet pipes are arranged at the two ends of the heat recovery pipeline respectively, a plugging plate is arranged at one end of the outer cylinder, a silk cylinder is arranged on the plugging plate and is connected with the outer cylinder in a threaded manner, a gas outlet pipe is arranged on the plugging plate, a uniform air inlet device is arranged at the other end of the outer cylinder, a disturbance device is arranged at the upper end of the outer cylinder and penetrates the outer cylinder and is located in the heat recovery pipeline; the disturbance device comprises a fixed frame, the fixed frame is fixedly connected to the upper end surface of the outer cylinder, an electric motor is arranged on the fixed frame, a rotating shaft is arranged at the output end of the electric motor, a disturbance plate is arranged at the lower end of the rotating shaft, the disturbance plate is located in the heat recovery pipeline, a through hole is arranged in the disturbance plate, and the disturbance device can disturb the water in the heat recovery pipeline, so that the water temperature can be uniformly mixed.
[0006] Further, the uniform air inlet device comprises a communication pipe, the communication pipe is connected with the outer cylinder and is arranged in a circumferential array at the end of the outer cylinder, a gas distribution disc is connected to the communication pipe, the gas distribution disc is hollow, an air inlet pipe is arranged on the gas distribution disc, the air inlet pipe is connected with the high-temperature tail gas, the high-temperature tail gas is distributed into the communication pipe through the gas distribution disc, the communication pipe delivers the high-temperature tail gas to the space between the outer cylinder and the heat recovery pipeline, and the heat recovery pipeline is uniformly heated.
[0007] Preferably, the outer cylinder is provided with a pressure sensor, and the outer cylinder is provided with a temperature sensor and connected with the heat recovery pipeline, the pressure sensor can monitor the air pressure between the heat recovery pipeline and the outer cylinder, and the temperature sensor can monitor the water temperature change in the heat recovery pipeline.
[0008] Preferably, the inner wall of the outer cylinder is provided with a heat preservation layer.
[0009] Preferably, the partition plate is provided with a plurality of groups and is arranged in a grid breathable manner on the inner wall of the outer cylinder.
[0010] Preferably, the end of the communication pipe communicates with the gap between the outer cylinder and the heat recovery pipeline.
[0011] The utility model adopts the above structure and achieves the beneficial effects as follows:
[0012] 1. The utility model discloses a disturbance device can realize the water in the heat recovery pipeline is disturbed, makes the water in the heat recovery pipeline is heated more evenly.
[0013] 2. The utility model discloses a partition plate, and the heat recovery pipeline and the outer cylinder are hollow, and the communication pipe is provided with high-temperature tail gas through the air distribution disc, and the tail gas can be evenly distributed around the heat recovery pipeline to heat it, so that the internal water absorbs heat. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the overall appearance view of the waste heat recovery device of the utility model;
[0015] Figure 2 It is the section internal arrangement drawing of the outer cylinder of the waste heat recovery device of the utility model;
[0016] Figure 3 It is Figure 1 It is another angle perspective view of the plugging plate;
[0017] Figure 4 It is the structure view of the disturbance device in the heat recovery pipeline.
[0018] 1, the outer cylinder, 2, the partition plate, 3, the heat recovery pipeline, 4, the inlet pipe, 5, the outlet pipe, 6, the plugging plate, 7, the silk cylinder, 8, the outlet pipe, 9, the disturbance device, 10, the uniform air inlet device, 11, the fixed frame, 12, the motor, 13, the rotating shaft, 14, the disturbance plate, 15, the through hole, 16, the communication pipe, 17, the air distribution disc, 18, the air inlet pipe, 19, the heat preservation layer, 20, the pressure sensor, 21, the temperature sensor. DETAILED DESCRIPTION
[0019] The technical solutions of the present application will be described clearly and completely in connection with the drawings. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0020] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0021] As Figures 1-4 The present application is a waste heat recovery device, which comprises an outer cylinder 1, a partition plate 2 is fixedly connected to the inner wall of the outer cylinder 1, the partition plate 2 is provided with a plurality of groups and is provided in a grid breathable manner on the inner wall of the outer cylinder 1, a heat preservation layer 19 is arranged on the inner wall of the outer cylinder 1, a heat recovery pipeline 3 is fixedly connected in the partition plate 2, a pressure sensor 20 is arranged on the outer cylinder 1, a temperature sensor 21 is arranged on the outer cylinder 1 and connected with the heat recovery pipeline 3, the pressure between the heat recovery pipeline 3 and the outer cylinder 1 can be monitored by the pressure sensor 20, the water temperature change in the heat recovery pipeline 3 can be monitored by the temperature sensor 21, water inlet pipes 4 and water outlet pipes 5 are arranged at both ends of the heat recovery pipeline 3, a blocking plate 6 is arranged at one end of the outer cylinder 1, a silk cylinder 7 is arranged on the blocking plate 6 and is connected with the outer cylinder 1 in a threaded manner, an air outlet pipe 8 is arranged on the blocking plate 6, a uniform air inlet device 10 is arranged at the other end of the outer cylinder 1, a disturbance device 9 is arranged at the upper end of the outer cylinder 1 and penetrates the outer cylinder 1 in the heat recovery pipeline 3.
[0022] As Figure 1 And 4 The disturbance device 9 comprises a fixing frame 11, the fixing frame 11 is fixedly connected to the upper end surface of the outer cylinder 1, an electric motor 12 is arranged on the fixing frame 11, an output end of the electric motor 12 is provided with a rotating shaft 13, a disturbance plate 14 is arranged at the lower end of the rotating shaft 13, the disturbance plate 14 is located in the heat recovery pipeline 3, through holes 15 are arranged in the disturbance plate 14, the water in the heat recovery pipeline 3 can be disturbed by the disturbance device 9, so that the water temperature can be mixed uniformly.
[0023] As Figure 1The uniform air inlet device 10 comprises a communication pipe 16 connected with the outer cylinder 1 and arranged in the end of the outer cylinder 1 in a circumferential array, the end of the communication pipe 16 communicates with the gap between the outer cylinder 1 and the heat recovery pipe 3, the communication pipe 16 is connected with a gas distribution disc 17, the gas distribution disc 17 is hollow, the gas distribution disc 17 is provided with an air inlet pipe 18, the high-temperature tail gas is communicated with the air inlet pipe 18, the high-temperature tail gas is distributed into the communication pipe 16 through the gas distribution disc 17, and the communication pipe 16 delivers the high-temperature tail gas to the gap between the outer cylinder 1 and the heat recovery pipe 3, so that the heat recovery pipe 3 is uniformly heated.
[0024] In specific use, the high-temperature tail gas is provided into the gas distribution disc 17 through the air inlet pipe 18, the tail gas is uniformly entered into the inner part of the outer cylinder 1 in a circumferential direction through the communication pipe 16, the high-temperature tail gas is wrapped around the heat recovery pipe 3 through the partition plate 2, the high-temperature tail gas can heat the water in the heat recovery pipe 3, and the heat is utilized.
[0025] The motor 12 is started, the rotating shaft 13 drives the disturbing plate 14 to rotate, the disturbing plate 14 can disturb the water in the heat recovery pipe 3, so that the water temperature is more uniform, the temperature sensor 21 can monitor the water temperature change in the heat recovery pipe 3, the pressure sensor 20 can monitor the pressure of the high-temperature tail gas, the tail gas is discharged from the exhaust pipe after absorbing heat, the water in the heat recovery pipe 3 can be supplemented and discharged for utilization through the water inlet pipe 4 and the drain pipe.
[0026] The above describes the utility model and its implementation mode, and the description is not limited, and the drawings only show one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.
Claims
1. A heat recovery device comprising an outer cylinder, characterized by: The inner wall of the outer cylinder is fixedly connected with a partition plate, the partition plate is fixedly connected with a heat recovery pipeline, two ends of the heat recovery pipeline are respectively provided with an inlet pipe and an outlet pipe, one end of the outer cylinder is provided with a blocking plate, the blocking plate is provided with a silk cylinder and is threadedly connected with the outer cylinder, the blocking plate is provided with an air outlet pipe, the other end of the outer cylinder is provided with a uniform air inlet device, the upper end of the outer cylinder is provided with a disturbance device and penetrates the outer cylinder in the heat recovery pipeline.
2. A waste heat recovery device according to claim 1, characterised in that: The disturbance device comprises a fixing frame, the fixing frame is fixedly connected to the upper end surface of the outer cylinder, the fixing frame is provided with a motor, the output end of the motor is provided with a rotating shaft, the lower end of the rotating shaft is provided with a disturbance plate, the disturbance plate is located in the heat recovery pipeline, and a through hole is formed in the disturbance plate.
3. A waste heat recovery device according to claim 2, characterised in that: The uniform air inlet device comprises a communication pipe, the communication pipe is connected with the outer cylinder and is arranged in the end of the outer cylinder, the communication pipe is connected with a gas distribution disc, the gas distribution disc is hollow, and the gas distribution disc is provided with an air inlet pipe.
4. A waste heat recovery device according to claim 3, characterised in that: The outer cylinder is provided with a pressure sensor, the outer cylinder is provided with a temperature sensor and is connected with the heat recovery pipeline.
5. A waste heat recovery device according to claim 4, characterised in that: The inner wall of the outer cylinder is provided with a heat preservation layer.
6. A waste heat recovery device according to claim 5, characterised in that: The partition plate is provided with a plurality of groups on the inner wall of the outer cylinder and is arranged in a grid breathable manner.
7. A waste heat recovery device according to claim 6, characterised in that: The end of the communication pipe is communicated with the gap between the outer cylinder and the heat recovery pipeline.