Waste heat recovery runner device, flue gas total heat recovery system and heating system

Abstract

The utility model discloses a kind of waste heat recovery runner device, flue gas total heat recovery system and heating system, the waste heat recovery runner device includes boiler side device, fresh air side device and runner module, runner module includes a runner main body and a main body frame, runner main body is installed in main body frame;The shape of boiler side device and fresh air side device is matched with the shape of main body frame and is installed and connected with main body frame;Boiler side device includes fresh air outlet duct and boiler smoke inlet pipeline, fresh air side device includes fresh air inlet pipeline and boiler smoke outlet pipeline, fresh air outlet duct is connected with fresh air inlet pipeline by runner main body, boiler smoke inlet pipeline is connected with boiler smoke outlet pipeline by runner main body;The area of boiler smoke inlet pipeline and boiler smoke outlet pipeline in runner main body is less than the area of fresh air outlet duct and fresh air inlet pipeline in the runner main body.The utility model can realize the flue gas heat and humidity recovery of boiler, while can greatly reduce nitrogen emission.

Description

Technical Field

[0001] This utility model relates to a waste heat recovery rotor device, a flue gas total heat recovery system, and a heating system. Background Technology

[0002] A boiler is an energy conversion device that inputs the chemical energy and electrical energy from fuel into the boiler, and outputs steam, high-temperature water or organic heat carriers after combustion and conversion.

[0003] A boiler consists of two main parts: the boiler itself and the furnace. The boiler refers to the container, while the furnace is the place where fuel is burned. The steam or hot water produced by the boiler can directly provide the heat energy needed for industrial production and people's lives, or it can be converted into mechanical energy through a steam power unit. A generator can then use this mechanical energy to produce electrical energy.

[0004] Boiler rooms suffer from low safety, high energy consumption, and high operating costs, all of which urgently require improvement through the upgrading of production monitoring platforms. Based on these factors, research is needed on boiler room renovation to meet load requirements while using appropriate technical means to achieve the goals of improving production efficiency, reasonably reducing energy consumption, and enhancing boiler room safety and other safety standards.

[0005] Waste heat recovery technology used in other fields can be applied to the field of smart boilers, such as the dehumidification system used in the fresh air treatment process of the spraying environment with patent number CN201820822230.X.

[0006] Existing flue gas heat and moisture recovery devices are ineffective at reducing nitrogen emissions. Utility Model Content

[0007] The technical problem to be solved by this utility model is to overcome the defect of poor nitrogen emission reduction effect of existing flue gas heat and moisture recovery devices, and to provide a waste heat recovery rotor device, flue gas total heat recovery system and heating system that can realize flue gas heat and moisture recovery of boilers and significantly reduce nitrogen emissions.

[0008] The present invention solves the above-mentioned technical problems through the following technical solution:

[0009] A waste heat recovery rotor device for reducing nitrogen emissions is characterized in that the waste heat recovery rotor device includes a boiler-side device, a fresh air-side device, and a rotor module.

[0010] The rotating wheel module includes a rotating wheel body and a main frame, wherein the rotating wheel body is installed within the main frame;

[0011] The shapes of the boiler-side device and the fresh air-side device are matched with the shape of the main frame and are installed and connected to the main frame.

[0012] The boiler-side device includes a fresh air outlet duct and a boiler flue gas inlet duct. The fresh air outlet duct is connected to the fresh air inlet duct via a rotating body, and the boiler flue gas inlet duct is connected to the boiler flue gas outlet duct via a rotating body.

[0013] The pipes of the boiler-side device and the fresh air-side device occupy a fan-shaped area in the main body of the rotor. The area occupied by the boiler flue gas inlet pipe and the boiler flue gas outlet pipe in the main body of the rotor is smaller than that occupied by the fresh air outlet pipe and the fresh air inlet pipe in the main body of the rotor.

[0014] Preferably, a fixed beam is provided along the centerline of the main frame.

[0015] The fresh air side device includes a first duct shell, inside which is a first isolation panel. One side of the first isolation panel is a fresh air intake duct, and the other side of the first isolation panel is a second isolation panel. One side of the second isolation panel is a boiler flue gas duct, and the other side is a first switching channel. The partition between the first switching channel and the fresh air intake duct is provided with a first through hole and a first switching device.

[0016] The boiler-side device includes a second pipe shell, inside which is a third isolation panel. The side of the third isolation panel opposite to the fresh air inlet pipe is the fresh air outlet pipe. The other side of the third isolation panel is a fourth isolation panel. The side of the fourth isolation panel opposite to the boiler flue gas outlet pipe is the boiler flue gas inlet pipe, and the other side is a second switching channel. A second through hole and a second switching device are provided between the second switching channel and the fresh air outlet pipe.

[0017] Preferably, the first switching device includes a first switching panel and a first control motor. The first switching panel is disposed on a first isolation panel within the first switching channel. The size of the first switching panel matches the distance between the inner sidewalls of the first switching channel. The first control motor drives the first switching panel to rotate along the front side of the first switching panel. When the first switching panel rotates and comes into contact with the first isolation panel, the first through hole is blocked. When the rear side of the first switching panel rotates and comes into contact with the sidewall of the first switching channel away from the first isolation panel, the fresh air intake duct is also connected to the main body of the rotating wheel through the first switching channel.

[0018] The second switching device includes a second switching panel and a second control motor. The second switching panel is located on a third isolation panel within the second switching channel. The size of the second switching panel matches the distance between the inner sidewalls of the second switching channel. The second control motor drives the second switching panel to rotate along the front side of the second switching panel. When the second switching panel rotates and comes into contact with the third isolation panel, the second through hole is blocked. When the rear side of the second switching panel rotates and comes into contact with the sidewall of the second switching channel away from the third isolation panel, the fresh air outlet duct is also connected to the main body of the rotor through the second switching channel.

[0019] Preferably, sealing strips are provided on all four sides of the first and second switching panels.

[0020] Preferably, both the first isolation panel and the third isolation panel are fixed to the fixed beam.

[0021] Preferably, an installation beam is also provided between the fixed beam and the main frame, and both the second isolation panel and the fourth isolation panel are fixed to the installation beam.

[0022] Preferably, the thickness of the main body of the rotary wheel is 180mm to 250mm.

[0023] This utility model also provides a flue gas total heat recovery system for a heating system, characterized in that the flue gas total heat recovery system includes, as described above, a waste heat recovery rotor device for reducing nitrogen emissions, a first centrifugal fan, and a second centrifugal fan.

[0024] The boiler flue gas inlet pipe is connected to the boiler flue gas outlet, and a chimney is connected between the boiler flue gas inlet pipe and the boiler flue gas outlet. The boiler flue gas outlet pipe is connected to a first centrifugal fan, and the first centrifugal fan is connected to the chimney. The fresh air outlet pipe is connected to the boiler air inlet through a second centrifugal fan, and the fresh air inlet pipe is connected to the outside.

[0025] This utility model also provides a heating system, characterized in that the heating system includes a waste heat recovery rotor device for reducing nitrogen emissions as described above, and a flue gas total heat recovery system.

[0026] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0027] The positive and progressive effects of this utility model are as follows:

[0028] This invention enables the recovery of heat and moisture from boiler flue gas and significantly reduces nitrogen emissions.

[0029] Furthermore, the working area on the rotary table in this application can be switched, making it applicable to more scenarios and more convenient to use. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the waste heat recovery rotor device of Embodiment 1 of this utility model.

[0031] Figure 2 This is another structural schematic diagram of the waste heat recovery rotor device of Embodiment 1 of this utility model.

[0032] Figure 3 This is a top view of the waste heat recovery rotor device of Embodiment 1 of this utility model.

[0033] Figure 4 This is another top view of the waste heat recovery rotor device of Embodiment 1 of this utility model.

[0034] Figure 5 This is a side view of the waste heat recovery rotor device according to Embodiment 1 of this utility model.

[0035] Figure 6 This is a schematic diagram of the experimental results of the waste heat recovery rotor device in Embodiment 1 of this utility model. Detailed Implementation

[0036] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein. Example

[0037] The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] See Figures 1 to 6 This embodiment provides a heating system, which includes a boiler and a flue gas total heat recovery system.

[0039] The flue gas total heat recovery system includes a waste heat recovery rotor device for reducing nitrogen emissions, a first centrifugal fan, and a second centrifugal fan.

[0040] The waste heat recovery rotor device includes a boiler-side device, a fresh air-side device, and a rotor module.

[0041] The rotating wheel module includes a rotating wheel body 101 and a main frame 100, with the rotating wheel body installed inside the main frame.

[0042] The shapes of the boiler-side device and the fresh air-side device match the shape of the main frame and are installed and connected to the main frame.

[0043] In this embodiment, the main frame is square in shape, and the outer shells of the boiler-side device and the fresh air-side device are both square in cross-section, for installation onto the main frame.

[0044] The boiler-side device includes a fresh air outlet duct (which is arranged opposite to the fresh air inlet duct 102 with a rotating body) and a boiler flue gas inlet duct (which is arranged opposite to the boiler flue gas outlet duct 103 with a rotating body).

[0045] The fresh air side device includes a fresh air intake duct 102 and a boiler flue gas outlet duct 103.

[0046] The fresh air outlet duct is connected to the fresh air inlet duct via the rotating body 101.

[0047] The boiler inlet pipe is connected to the boiler outlet pipe through the rotor body 101.

[0048] The pipes for the boiler-side device and the fresh air-side device occupy a fan-shaped area of ​​the main body of the impeller.

[0049] The area occupied by the boiler flue gas inlet duct and the boiler flue gas outlet duct of the rotor body is smaller than the area occupied by the fresh air outlet duct and the fresh air inlet duct of the rotor body.

[0050] Typically, the fresh air inlet / outlet duct and the boiler flue gas inlet / outlet duct each occupy half the area of ​​the rotor body.

[0051] When the area occupied by the fresh air inlet / outlet duct on the rotor body is larger than the area occupied by the boiler flue gas inlet / outlet duct, nitrogen emissions can be further reduced. (See also...) Figure 5 The experimental data demonstrates a significant reduction in nitrogen emissions.

[0052] A fixed beam 104 is provided along the centerline of the main frame.

[0053] The fresh air side device includes a first duct housing 105. The main frame 100 is square in shape, and the first duct housing 105 has a square cross-section for mounting onto the main frame 100.

[0054] A first isolation panel 106 is provided inside the first pipe shell 105.

[0055] One side of the first isolation panel is the fresh air intake duct 102.

[0056] A second isolation panel 107 is provided on the other side of the first isolation panel.

[0057] One side of the second isolation panel 107 is the boiler flue gas duct 103, and the other side is the first switching channel 108.

[0058] The partition between the first switching channel 108 and the fresh air intake duct 102 is provided with a first through hole 109 and a first switching device.

[0059] The boiler-side device includes a second pipe housing 110. The main frame is square in shape, and the second pipe housing has a square cross-section for mounting onto the main frame.

[0060] A third isolation panel 111 is provided inside the second pipe housing 110.

[0061] The third isolation panel 111 is located on the side opposite to the fresh air intake duct 102, which is the fresh air outlet duct 112.

[0062] A fourth isolation panel 113 is provided on the other side of the third isolation panel 111.

[0063] The fourth isolation panel 113 has a boiler flue gas inlet pipe on one side opposite to the boiler flue gas outlet pipe and a second switching channel 114 on the other side.

[0064] A second through hole 115 and a second switching device are provided between the second switching channel and the fresh air outlet duct.

[0065] Furthermore, the first switching device includes a first switching panel 116 and a first control motor.

[0066] The first switching panel 116 is disposed on the first isolation panel 106 within the first switching channel 108.

[0067] The size of the first switching panel matches the distance between the inner sidewalls of the first switching channel.

[0068] The first control motor drives the first switching panel to rotate along the front side 117 of the first switching panel.

[0069] When the first switching panel is rotated to fit against the first isolation panel, the first through hole 109 is blocked.

[0070] When the rear side 118 of the first switching panel 116 is rotated to fit against the side wall of the first switching channel away from the first isolation panel, the fresh air intake duct is also connected to the rotor body through the first switching channel.

[0071] In this embodiment, the front side of the first switching panel is the side away from the main body of the rotating wheel, and the rear side is the side close to the main body of the rotating wheel.

[0072] The second switching device includes a second switching panel 119 and a second control motor.

[0073] The second switching panel 119 is located on the third isolation panel 111 within the second switching channel 114.

[0074] The size of the second switching panel matches the distance between the inner sidewalls of the second switching channel 114.

[0075] The second control motor drives the second switching panel 119 to rotate along the front side of the second switching panel.

[0076] When the second switching panel 119 is rotated to fit against the third isolation panel, the second through hole is blocked.

[0077] When the rear side of the second switching panel is rotated to fit against the side wall of the second switching channel away from the third isolation panel, the fresh air outlet duct is also connected to the main body of the rotor through the second switching channel.

[0078] In this embodiment, the front side of the second switching panel is the side away from the main body of the rotating wheel, and the rear side is the side close to the main body of the rotating wheel.

[0079] By using the first and second switching channels, the area occupied by the fresh air inlet / outlet ducts and the boiler flue gas inlet / outlet ducts on the rotor body can be adjusted.

[0080] When the first and second switching panels are opened, not only does the volume of the fresh air inlet and outlet duct increase, but the proportion of the main body of the rotor also increases, increasing the area of ​​the fresh air inlet and outlet duct from one-half to three-quarters.

[0081] See Figure 6 The experiment showed that the nitrogen content was reduced.

[0082] The first and second switching panels are equipped with sealing strips on all four sides.

[0083] Both the first isolation panel and the third isolation panel are fixed to the fixed beam.

[0084] An installation beam is also provided between the fixed beam and the main frame, and the second isolation panel and the fourth isolation panel are both fixed to the installation beam.

[0085] The thickness of the main body of the rotary wheel is 180mm to 250mm, preferably 200mm.

[0086] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A waste heat recovery rotor device for reducing nitrogen emissions, characterized in that, The waste heat recovery rotor device includes a boiler-side device, a fresh air-side device, and a rotor module. The rotating wheel module includes a rotating wheel body and a main frame, wherein the rotating wheel body is installed within the main frame; The shapes of the boiler-side device and the fresh air-side device match the shape of the main frame and are installed and connected to the main frame. The boiler-side device includes a fresh air outlet duct and a boiler flue gas inlet duct. The fresh air outlet duct is connected to the fresh air inlet duct via a rotating body, and the boiler flue gas inlet duct is connected to the boiler flue gas outlet duct via a rotating body. The pipes of the boiler-side device and the fresh air-side device occupy a fan-shaped area in the main body of the rotor. The area occupied by the boiler flue gas inlet pipe and the boiler flue gas outlet pipe in the main body of the rotor is smaller than that occupied by the fresh air outlet pipe and the fresh air inlet pipe in the main body of the rotor.

2. The waste heat recovery rotor device for reducing nitrogen emissions as described in claim 1, characterized in that, A fixed beam is provided along the centerline of the main frame. The fresh air side device includes a first duct shell, inside which is a first isolation panel. One side of the first isolation panel is a fresh air intake duct, and the other side of the first isolation panel is a second isolation panel. One side of the second isolation panel is a boiler flue gas duct, and the other side is a first switching channel. The partition between the first switching channel and the fresh air intake duct is provided with a first through hole and a first switching device. The boiler-side device includes a second pipe shell, inside which is a third isolation panel. The side of the third isolation panel opposite to the fresh air inlet pipe is the fresh air outlet pipe. The other side of the third isolation panel is a fourth isolation panel. The side of the fourth isolation panel opposite to the boiler flue gas outlet pipe is the boiler flue gas inlet pipe, and the other side is a second switching channel. A second through hole and a second switching device are provided between the second switching channel and the fresh air outlet pipe.

3. The waste heat recovery rotor device for reducing nitrogen emissions as described in claim 2, characterized in that, The first switching device includes a first switching panel and a first control motor. The first switching panel is disposed on a first isolation panel inside the first switching channel. The size of the first switching panel matches the distance between the inner side walls of the first switching channel. The first control motor drives the first switching panel to rotate along the front side of the first switching panel. When the first switching panel rotates and is in contact with the first isolation panel, the first through hole is blocked. When the rear side of the first switching panel rotates and is in contact with the side wall of the first switching channel away from the first isolation panel, the fresh air intake duct is also connected to the main body of the rotating wheel through the first switching channel. The second switching device includes a second switching panel and a second control motor. The second switching panel is located on a third isolation panel within the second switching channel. The size of the second switching panel matches the distance between the inner sidewalls of the second switching channel. The second control motor drives the second switching panel to rotate along the front side of the second switching panel. When the second switching panel rotates and comes into contact with the third isolation panel, the second through hole is blocked. When the rear side of the second switching panel rotates and comes into contact with the sidewall of the second switching channel away from the third isolation panel, the fresh air outlet duct is also connected to the main body of the rotor through the second switching channel.

4. The waste heat recovery rotor device for reducing nitrogen emissions as described in claim 3, characterized in that, The first and second switching panels are equipped with sealing strips on all four sides.

5. The waste heat recovery rotor device for reducing nitrogen emissions as described in claim 2, characterized in that, Both the first isolation panel and the third isolation panel are fixed to the fixed beam.

6. The waste heat recovery rotor device for reducing nitrogen emissions as described in claim 5, characterized in that, An installation beam is also provided between the fixed beam and the main frame, and the second isolation panel and the fourth isolation panel are both fixed to the installation beam.

7. The waste heat recovery rotor device for reducing nitrogen emissions as described in claim 1, characterized in that, The thickness of the main body of the rotor is 180mm to 250mm.

8. A flue gas total heat recovery system for use in a heating system, characterized in that, The flue gas total heat recovery system includes a waste heat recovery rotor device for reducing nitrogen emissions as described in any one of claims 1 to 7, a first centrifugal fan, and a second centrifugal fan. The boiler flue gas inlet pipe is connected to the boiler flue gas outlet, and a chimney is connected between the boiler flue gas inlet pipe and the boiler flue gas outlet. The boiler flue gas outlet pipe is connected to a first centrifugal fan, and the first centrifugal fan is connected to the chimney. The fresh air outlet pipe is connected to the boiler air inlet through a second centrifugal fan, and the fresh air inlet pipe is connected to the outside.

9. A heating system, characterized in that, The heating system includes a waste heat recovery rotor device for reducing nitrogen emissions as described in any one of claims 1 to 7, and a flue gas total heat recovery system.

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