A generator set tail gas waste heat utilization system

Abstract

The utility model discloses a generator set tail gas waste heat utilization system, the generator set at least includes tail gas exhaust pipe and net smoke silencer, and tail gas waste heat utilization system includes the waste heat utilization pipe, and this waste heat utilization pipe is connected with tail gas exhaust pipe and net smoke silencer through the tee pipe, the other end of waste heat utilization pipe is connected with the heat -using equipment of external connection, is provided with the valve at every export of this tee pipe, the utility model discloses a waste heat utilization pipe that is connected with the heat -using equipment of external connection can realize the recovery or recycling of the waste heat that gas generator set is discharged with tail gas, reduces the waste of energy.

Description

Technical Field

[0001] This utility model relates to the field of generator equipment, specifically a generator set exhaust gas waste heat utilization system. Background Technology

[0002] Gas generator sets, as a common power output device, are widely used in various fields such as industrial production, commercial operation, and emergency power supply. However, in the actual operation of gas generator sets, there is a problem of energy waste in the exhaust emission process.

[0003] Specifically, when a gas turbine generator set is operating, the high-temperature, high-pressure gas generated by the combustion of fuel in the combustion chamber drives a turbine or piston to perform work. During this process, most of the energy is effectively converted into mechanical or electrical energy, while some energy is emitted as heat in the exhaust gas. Relevant data and practical applications show that this type of exhaust gas typically has a high temperature and contains considerable waste heat resources.

[0004] However, in current conventional technical solutions, the exhaust gas from generator sets is often simply treated with a muffler for noise reduction before being directly released into the atmosphere. While this approach solves the exhaust gas emission and noise problems to some extent, it completely neglects the recovery and utilization of waste heat in the exhaust gas. A large amount of valuable waste heat is lost without any treatment, which not only reduces the overall energy efficiency of the gas generator set but also results in energy waste. Utility Model Content

[0005] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides a generator set exhaust gas waste heat utilization system. By setting up a waste heat utilization pipe connected to an external heat-using device, the waste heat discharged from the gas generator set with the exhaust gas can be recovered or reused, thereby reducing energy waste.

[0006] Specifically, a generator set exhaust gas waste heat utilization system, wherein the generator set includes at least an exhaust gas pipe and a smoke-cleaning silencer, and the exhaust gas waste heat utilization system includes a waste heat utilization pipe, which is connected to the exhaust gas pipe and the smoke-cleaning silencer through a T-connector, and the other end of the waste heat utilization pipe is connected to an external heat-using device.

[0007] A valve is installed at each outlet of the tee pipe.

[0008] Optionally, the tee is a T-shaped tee, with its two horizontal ports connected to the waste heat utilization pipe and the exhaust pipe, respectively, and the smoke-removing silencer installed vertically upwards at the other port of the T-shaped tee.

[0009] Optionally, a condensate collection section is provided below the tee pipe.

[0010] Optionally, the condensate collection section is a water collection tank located at the bottom of the tee pipe, and the water collection tank has a drain outlet.

[0011] This utility model has the following advantages:

[0012] This utility model is a waste heat recovery system for generator exhaust gas. By setting up a waste heat recovery pipe connected to an external heat-using device, the system can effectively recover the waste heat discharged with the exhaust gas from the gas generator set, thereby improving energy utilization efficiency and reducing energy waste.

[0013] By installing a condensate collection unit, the generated condensate can be collected and discharged through a drain outlet, thus solving the problem of condensate backflow affecting the generator. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model (waste heat utilization state);

[0015] Figure 2 This is a schematic diagram of the structure of this utility model (exhaust gas state);

[0016] Figure 3 This is a schematic diagram of the structure of this utility model (flue gas recirculation state);

[0017] Figure 4 This is a schematic diagram of a three-way valve;

[0018] Figure 5 This is a schematic diagram of the condensate collection section;

[0019] In the diagram: 100, smoke silencer; 200, waste heat recovery pipe; 300, tee pipe; 301, valve; 302, condensate collection section; 303, drain outlet; 400, exhaust gas pipe. Detailed Implementation

[0020] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0021] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0022] As described in the background section, when a gas turbine generator set is operating, the high-temperature, high-pressure gas generated by the combustion of fuel in the combustion chamber drives a turbine or piston to perform work. During this process, most of the energy is effectively converted into mechanical or electrical energy, while some energy is emitted as heat with the exhaust gas. Relevant data and practical applications show that this type of exhaust gas typically has a high temperature and contains considerable waste heat resources.

[0023] However, in current conventional technical solutions, the exhaust gas from generator sets is often simply treated with a muffler for noise reduction before being directly released into the atmosphere. While this approach solves the exhaust gas emission and noise problems to some extent, it completely neglects the recovery and utilization of waste heat in the exhaust gas. A large amount of valuable waste heat is lost without any treatment, which not only reduces the overall energy efficiency of the gas generator set but also results in energy waste.

[0024] For the reasons mentioned above, such as Figures 1-5 As shown, this embodiment provides a generator set exhaust gas waste heat utilization system. The generator set includes at least an exhaust gas pipe 400 and a smoke-cleaning silencer 100. The exhaust gas waste heat utilization system includes a waste heat utilization pipe 200, which is connected to the exhaust gas pipe 400 and the smoke-cleaning silencer 100 via a three-way pipe 300. The other end of the waste heat utilization pipe is connected to an external heat-using device. For example, the external heat-using device can be a heat exchanger, which exchanges the temperature inside the waste heat utilization pipe to other media for reuse.

[0025] A valve 301 is installed at each outlet of the tee pipe 300.

[0026] The aforementioned technical features, through the installation of a waste heat recovery pipe connected to external heat-using equipment, enable the recovery or reuse of waste heat discharged from the gas generator set along with the exhaust gas, reducing energy waste. During operation, the flow direction of the exhaust gas is controlled by three valves on a three-way pipe. When waste heat is not utilized or is insufficient (or has no utilization value), the exhaust gas is allowed to directly enter the smoke-cleaning silencer through the exhaust gas pipe by controlling the valves (i.e., closing the valve at the waste heat recovery pipe end and opening the other two valves). When waste heat needs to be utilized, the valve at the smoke-cleaning silencer end is closed, and the other two valves are opened, allowing the exhaust gas to enter the waste heat recovery pipe through the exhaust gas pipe and then enter the heat-using equipment, thus utilizing the waste heat. The exhaust gas with utilized waste heat can then be discharged through a pipeline into the smoke-cleaning silencer at the aforementioned or other interfaces.

[0027] During the real-time process, in order to concentrate waste heat to the heat-using equipment, multiple waste heat utilization pipes are converged into a main pipeline, which is then connected to the heat-using equipment. During this process, if a generator unit is not operating, a portion of the exhaust gas may flow back through the waste heat utilization pipe of that generator unit (e.g., Figure 3 (as shown); or condensate may occur during exhaust gas emission or exhaust gas waste heat utilization. If the valve is not closed in time, there will be a temperature difference between the non-working smoke silencer and the returning exhaust gas, which can easily lead to condensate. If the condensate enters the generator through the exhaust gas pipe, it will affect or damage the generator.

[0028] To overcome the above problems, in one embodiment, the tee is a T-shaped tee 300, with its two horizontal ports connected to the waste heat recovery pipe and the exhaust pipe, respectively. The smoke purifier is installed vertically upward at the other port of the T-shaped tee. A condensate collection section 302 is provided below the tee. The condensate collection section is a water collection trough located at the bottom of the tee, and the water collection trough has a drain outlet 303.

[0029] The aforementioned technical features utilize a condensate collection section to concentrate the generated condensate, which is then discharged through a drain outlet, thus resolving the issue of condensate backflow affecting the generator. During operation, because the condensate collection section is located at the bottom of the tee pipe, the generated condensate collects under gravity in this section (which is a recessed groove for better collection). The collected condensate is then discharged through a pipe connected to the drain outlet, which is equipped with a valve. When there is no condensate, the valve is closed to prevent flue gas from escaping from the drain outlet. It is opened only when condensate needs to be drained. Because the condensate collection section contains water during condensate drainage, exhaust gas will not be discharged from the exhaust outlet.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A generator set exhaust gas waste heat utilization system, wherein the generator set includes at least an exhaust gas pipe and a smoke-cleaning silencer, characterized in that: The exhaust gas waste heat utilization system includes a waste heat utilization pipe, which is connected to the exhaust gas pipe and the smoke silencer through a T-connector. The other end of the waste heat utilization pipe is connected to an external heat-using device. A valve is installed at each outlet of the tee pipe.

2. The generator set exhaust gas waste heat utilization system according to claim 1, characterized in that: The tee is a T-shaped tee, with its two horizontal ports connected to the waste heat utilization pipe and the exhaust pipe, respectively, and the smoke-removing silencer installed vertically upward on the other port of the T-shaped tee.

3. The generator set exhaust gas waste heat utilization system according to claim 2, characterized in that: A condensate collection section is provided below the three-way pipe.

4. The generator set exhaust gas waste heat utilization system according to claim 3, characterized in that: The condensate collection section is a water collection tank located at the bottom of the tee pipe.

5. The generator set exhaust gas waste heat utilization system according to claim 4, characterized in that: The water collection tank has a drain outlet.

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