Fuel gas heating system

Abstract

The utility model belongs to the technical field of fuel gas treatment devices, and particularly provides a fuel gas heating system. Comprising a first pipeline arranged between a fuel gas bus A and a fuel gas filter; the second pipeline is arranged between the fuel gas filter and the heat exchanger; and the third pipeline is arranged between the heat exchanger and the fuel gas bus B. According to the scheme, the temperature of the fuel gas is increased, the combustion efficiency of the fuel gas is improved, and therefore the purposes of saving energy and reducing consumption are achieved. The usage amount of fuel gas is effectively reduced, and the usage amount of fuel gas of the heating furnace is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of fuel gas processing devices and specifically provides a fuel gas heating system. Background Art

[0002] The fuel gas from the hydroreforming pre-fractionation unit is directly burned in the combustion furnace because its own temperature is not high enough, resulting in serious waste of fuel gas. Therefore, it is necessary to develop a set of equipment to increase the temperature of the fuel gas and reduce the amount of fuel gas used, thereby enhancing the effect of energy conservation and emission reduction. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a fuel gas heating system, comprising:

[0004] A first pipeline is provided between the fuel gas bus A and the fuel gas filter;

[0005] a second pipeline disposed between the fuel gas filter and the heat exchanger;

[0006] The third pipeline is arranged between the heat exchanger and the fuel gas bus B.

[0007] Furthermore, it also includes a fuel gas buffer tank, and the end of the fuel gas bus B is connected to the fuel gas buffer tank.

[0008] Furthermore, the heat exchanger has a hot water supply pipeline and a hot water return pipeline, and valves are respectively provided on the two pipelines; a bypass pipeline A is connected between the two pipelines, and a valve is provided on the bypass pipeline.

[0009] Furthermore, a bypass pipeline B with a valve is provided between the second pipeline and the third pipeline.

[0010] Furthermore, a valve is provided at the end of the first pipeline; a valve is provided at the starting end and the end of the second pipeline respectively; and a valve is provided at the starting end of the third pipeline.

[0011] This solution increases the temperature of the fuel gas and the combustion efficiency of the fuel gas, thereby achieving the purpose of energy saving and consumption reduction. It effectively reduces the amount of fuel gas used and reduces the amount of fuel gas used in the heating furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] In the figure, 1. fuel gas bus A; 2. first pipeline; 3. fuel gas filter; 4. second pipeline; 5. heat exchanger; 6. fuel gas bus B; 7. fuel gas buffer tank; 8. hot water supply pipeline; 9. hot water return pipeline; 10. bypass pipeline A; 11. bypass pipeline B; 12. third pipeline. DETAILED DESCRIPTION

[0014] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0015] refer to Figure 1 The utility model provides a fuel gas heating system, comprising:

[0016] A first pipeline 2 is provided between the fuel gas bus A1 and the fuel gas filter 3;

[0017] The second pipeline 4 is provided between the fuel gas filter 3 and the heat exchanger 5;

[0018] The third pipeline 12 is provided between the heat exchanger 5 and the fuel gas bus B6.

[0019] As an improvement of the scheme, a fuel gas buffer tank 7 is further included. The end of the fuel gas bus B6 is connected to the fuel gas buffer tank 7. The function of the buffer tank 7 is to separate the gas and liquid of the fuel gas coming out of the heat exchanger 5. It also prevents water from entering the fuel gas side after the heat exchanger corrodes and leaks, and has the function of separating water.

[0020] As an improvement of the solution, the heat exchanger 5 has a hot water supply pipeline 8 and a hot water return pipeline 9, a bypass pipeline A10 is connected between the two pipelines, and valves are respectively provided on the two pipelines; the bypass pipeline is provided with a valve, and when the heat exchanger 5 is inspected and repaired, the valve on the bypass pipeline A10 can be opened, and the valves on the hot water supply pipeline 8 and the hot water return pipeline 9 can be closed at the same time, so that the heat exchanger 5 can be separated.

[0021] As an improvement of the scheme, a bypass pipeline B with a valve is provided between the second pipeline 4 and the third pipeline. A valve is provided at the end of the first pipeline 2; a valve is provided at the starting end and the end of the second pipeline 4 respectively; and a valve is provided at the starting end of the third pipeline. When the heat exchanger 5 is inspected and repaired, the end valve of the second pipeline 4, the valve of the third pipeline 12, and the valve of the bypass pipeline B11 can be closed, and the heat exchanger 5 can be separated and inspected without stopping the movement of the equipment.

[0022] A remote thermometer is provided on the third pipeline to detect the fuel gas temperature.

[0023] The fuel gas transported from the fuel gas bus A enters the filter 3, and then passes through the heat exchanger to be heated at high temperature, and then returns to the fuel gas bus B for transport. After the filter 3 and before the fuel gas buffer tank 7, a high-temperature hot water heat exchanger is added. The source of hot water is steam condensate. It is calculated that the fuel gas at 30°C and 0.5MPa can be heated to 70°C and 0.5MPa. While recycling the waste heat of steam condensate, the temperature of the fuel gas is also increased, thereby increasing the combustion efficiency of the fuel gas, thereby achieving the purpose of energy saving and consumption reduction.

[0024] After the implementation of this project, the use of fuel gas can be reduced, and the use of fuel gas in heating furnaces can be reduced.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fuel gas heating system, characterized in that: include, A first pipeline is provided between the fuel gas bus A and the fuel gas filter; a second pipeline disposed between the fuel gas filter and the heat exchanger; The third pipeline is arranged between the heat exchanger and the fuel gas bus B.

2. A fuel gas heating system as claimed in claim 1, characterized in that: A fuel gas buffer tank is also included, and an end of the fuel gas bus B is connected to the fuel gas buffer tank.

3. A fuel gas heating system as claimed in claim 1, characterized in that: The heat exchanger comprises a hot water supply pipeline and a hot water return pipeline, and valves are respectively arranged on the two pipelines; a bypass pipeline A is connected between the two pipelines, and a valve is arranged on the bypass pipeline.

4. A fuel gas heating system as claimed in claim 1, characterized in that: A bypass line B with a valve is provided between the second pipeline and the third pipeline.

5. A fuel gas heating system as claimed in claim 1, characterized in that: A valve is arranged at the end of the first pipeline; a valve is arranged at the starting end and the end of the second pipeline respectively; and a valve is arranged at the starting end of the third pipeline.

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