Recovery device for turbine waste heat recovery

Abstract

The utility model discloses a recovery device for recovering waste heat of a turbine, which relates to the technical field of turbines and comprises a turbine body, an exhaust pipe is arranged at the exhaust end of the turbine body, a gas hood is arranged at the gas supply end of the turbine body, a waste heat recovery pipe is arranged on the outer wall of the gas hood, and a spiral blade is arranged in the waste heat recovery pipe. A first gas guide pipe is arranged on the outer wall of one end of the waste heat recovery pipe, the exhaust pipe communicates with the waste heat recovery pipe through a second gas guide pipe, and a gas adjusting valve is arranged on the outer wall of the second gas guide pipe. According to the turbine heat recovery device, the second gas guide pipe and the waste heat recovery pipe are used in cooperation, heat generated by the turbine body is conveniently conveyed to the gas hood, the gas hood is heated, and therefore the heat of the turbine body is recycled, and resources are saved; and through the use of the spiral blades, the gas flowing path is increased, and the gas flowing speed is reduced, so that heat in gas is conveniently absorbed, and the heat recovery efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of turbines, in particular to a recovery device for waste heat recovery of turbines. Background Art

[0002] A turbine is a machine that converts the energy contained in a fluid working medium into mechanical work; also known as a turbine or turbomachine. The working conditions and the working medium used by the turbine are different, so its structural forms are diverse, but the basic principles are similar; the most important component of the turbine is a rotating part, namely a rotor, or an impeller, which is installed on the turbine shaft and has blades arranged uniformly. The energy of the fluid is converted into kinetic energy when flowing through the nozzle, and when the fluid flows through the impeller, it impacts the impeller and drives the impeller to rotate, thereby driving the turbine shaft to rotate and output mechanical work; when the turbine is working, the exhaust gas temperature is about 130 °C, and these heats are directly discharged into the air with the gas, resulting in waste of heat; therefore, a recovery device for waste heat recovery of turbines is proposed to solve the above problems. Summary of the Invention

[0003] The purpose of the utility model is to provide a recovery device for waste heat recovery of turbines to solve the above problems.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A recovery device for waste heat recovery of turbines includes a turbine body. An exhaust pipe is provided at the exhaust end of the turbine body, and an air hood is provided at the air supply end of the turbine body. A waste heat recovery pipe is provided on the outer wall of the air hood, and a spiral blade is provided in the waste heat recovery pipe. A first guide pipe is provided on the outer wall of one end of the waste heat recovery pipe. The exhaust pipe and the waste heat recovery pipe are connected through a second guide pipe, and a gas regulating valve is provided on the outer wall of the second guide pipe.

[0006] Preferably, a second vacuum chamber is provided on the inner wall of the second guide pipe, and a first vacuum chamber is provided on the inner wall of the waste heat recovery pipe.

[0007] Preferably, a second heat-insulating cotton is sleeved on the outer wall of the second guide pipe, and a first heat-insulating cotton is sleeved on the outer wall of the waste heat recovery pipe.

[0008] Preferably, the spiral blade is made of copper and contacts the inner wall of the air hood.

[0009] Preferably, an air purifier body for air purification is provided at one end of the first guide pipe.

[0010] In summary, due to the adoption of the above technical scheme, the beneficial effects of the utility model are as follows:

[0011] By the combined use of the second air duct and the waste heat recovery pipe, the present utility model facilitates the transfer of the heat generated by the turbine body to the gas hood, achieving the heating of the gas hood, thereby realizing the recycling and reuse of the heat of the turbine body and saving resources. Among them, through the use of the spiral blades, the path of gas flow is increased and the gas flow velocity is reduced, thus facilitating the absorption of heat in the gas and improving the efficiency of heat recovery. Through the combined use of the first vacuum chamber and the second vacuum chamber, the heat in the second air duct and the waste heat recovery pipe is blocked from passing through the inner walls of the second air duct and the waste heat recovery pipe, thereby avoiding the dissipation of heat and further preventing the dissipation of heat during transportation, thus improving the utilization rate of heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 shows a schematic structural diagram of a front view according to an embodiment of the present utility model;

[0013] Figure 2 shows a schematic cross-sectional structure diagram of the waste heat recovery pipe according to an embodiment of the present utility model;

[0014] Figure 3 is Figure 2 a partial enlarged view of part A in

[0015] Figure 4 is Figure 2 a partial enlarged view of part B in

[0016] LEGEND DESCRIPTION:

[0017] 1. Turbine body; 2. Exhaust pipe; 3. Gas hood; 4. First layer of heat insulation cotton; 5. First air duct; 6. Second layer of heat insulation cotton; 7. Spiral blades; 8. Waste heat recovery pipe; 9. Second vacuum chamber; 10. Second air duct; 11. First vacuum chamber; 12. Gas regulating valve; 13. Air purifier body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1-4 , the present utility model provides a technical solution:

[0020] Recovery device for waste heat recovery of a turbine, including a turbine body 1 (which is a prior art). An exhaust pipe 2 is provided at the exhaust end of the turbine body 1 for exhausting the gas of the turbine body 1. An air hood 3 is provided at the air supply end of the turbine body 1, and a waste heat recovery pipe 8 is provided on the outer wall of the air hood 3 for wrapping the air hood 3, so as to facilitate heating the air hood 3, realizing the recovery and utilization of the heat of the turbine body 1 and saving resources. A spiral blade 7 is provided in the waste heat recovery pipe 8. By using the spiral blade 7, the path of gas flow is increased and the gas flow velocity is reduced, so as to facilitate the absorption of heat in the gas and improve the efficiency of heat recovery. At the same time, the amount of steam used for heating the air hood 3 is reduced, saving resources. A first guide pipe 5 is provided on the outer wall at one end of the waste heat recovery pipe 8, and the exhaust pipe 2 and the waste heat recovery pipe 8 are connected through a second guide pipe 10, which is convenient for transporting the gas discharged from the turbine body 1 into the waste heat recovery pipe 8, so as to facilitate the recovery of the heat in the discharged gas and save resources. A gas regulating valve 12 is provided on the outer wall of the second guide pipe 10 for regulating the gas flow velocity.

[0021] In the present utility model, a second vacuum chamber 9 is provided on the inner wall of the second guide pipe 10, and a first vacuum chamber 11 is provided on the inner wall of the waste heat recovery pipe 8. By using the cooperation of the first vacuum chamber 11 and the second vacuum chamber 9, the heat in the second guide pipe 10 and the waste heat recovery pipe 8 is blocked from passing through the inner walls of the second guide pipe 10 and the waste heat recovery pipe 8, thereby avoiding the dissipation of heat and further avoiding the dissipation of heat during transportation, thus improving the utilization rate of heat.

[0022] In the present utility model, a second heat insulation cotton 6 is sleeved on the outer wall of the second guide pipe 10, and a first heat insulation cotton 4 is sleeved on the outer wall of the waste heat recovery pipe 8. By using the second heat insulation cotton 6 and the first heat insulation cotton 4, it is convenient to insulate the second guide pipe 10 and the waste heat recovery pipe 8, avoid heat leakage during heat transfer, and improve the utilization rate of heat.

[0023] In the present utility model, the spiral blade 7 is made of copper material and is in contact with the inner wall of the air hood 3, which is convenient for heat transfer, thus facilitating heat absorption and improving the efficiency of heat absorption.

[0024] In the present utility model, an air purifier body 13 for air purification is provided at the end of the first guide pipe 5. By using the air purifier body 13, it is convenient to purify the gas, avoid the discharged gas from polluting the surrounding air, and is beneficial to protecting the surrounding environment.

[0025] Working principle: When the utility model is in use, the gas generated by the turbine body 1 during use will flow into the waste heat recovery pipe 8 through the second guide pipe 10. Then the gas flows in the waste heat recovery pipe 8, and then under the action of the spiral blade 7, the gas spirally flows in the waste heat recovery pipe 8, increasing the flow path of the gas and reducing the flow speed of the gas. Then the heat will be absorbed by the gas hood 3, realizing the heating of the gas hood 3 and the recycling of the heat of the turbine body 1, thus saving energy;

[0026] Among them, the heat flows in the second guide pipe 10 and the waste heat recovery pipe 8. Under the action of the first vacuum chamber 11 and the second vacuum chamber 9, the heat is blocked, so that the heat will not escape from the outer walls of the second guide pipe 10 and the waste heat recovery pipe 8, improving the utilization rate of the heat.

[0027] The above description of the embodiments enables those skilled in the art to implement or use the utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A recovery device for recovering waste heat of a turbine, comprising a turbine body (1), characterized in that, An exhaust pipe (2) is provided at the exhaust end of the turbine body (1), an air hood (3) is provided at the air supply end of the turbine body (1), a waste heat recovery pipe (8) is provided on the outer wall of the air hood (3), a spiral blade (7) is provided in the waste heat recovery pipe (8), a first guide pipe (5) is provided on the outer wall of one end of the waste heat recovery pipe (8), and the exhaust pipe (2) and the waste heat recovery pipe (8) are communicated through a second guide pipe (10), and a gas regulating valve (12) is provided on the outer wall of the second guide pipe (10).

2. The recovery device for waste heat recovery of a turbine according to claim 1, characterized in that, A second vacuum chamber (9) is formed on the inner wall of the second guide pipe (10), and a first vacuum chamber (11) is formed on the inner wall of the waste heat recovery pipe (8).

3. The recovery device for waste heat recovery of a turbine according to claim 2, wherein, A second heat insulation cotton (6) is sleeved on the outer wall of the second guide pipe (10), and a first heat insulation cotton (4) is sleeved on the outer wall of the waste heat recovery pipe (8).

4. The recovery device for waste heat recovery of a turbomachine according to claim 1, characterized in that, The spiral blade (7) is made of copper material and is in contact with the inner wall of the air hood (3).

5. The recovery device for recovering waste heat of a turbine according to claim 1, characterized in that, An air purifier body (13) for air purification is provided at the end of the first guide pipe (5).

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