Fuel gas odorant injection device

Abstract

The utility model provides a fuel gas odorant injection device, which relates to the field of odorant injection devices and comprises a fuel gas pipeline, a connecting pipe is fixedly mounted on the fuel gas pipeline, an odorant liquid inlet pipe is detachably connected onto the connecting pipe, a flow guide rod is fixedly mounted on the connecting pipe, and the flow guide rod is detachably connected onto the odorant liquid inlet pipe. Liquid in the odorant liquid inlet pipe can flow to the flow guide rod through an outlet hole formed in the inner wall of the connecting pipe, threads are formed in the outer surface of the flow guide rod, and the bottom end of the flow guide rod extends into an inner cavity of the gas pipeline. The threads on the outer surface of the flow guide rod can increase the contact area of odorant liquid and gas, slow down the downward flowing speed of the odorant liquid and prolong the contact time of the odorant liquid and the gas, so that the odorant is more fully contacted with the gas.

Description

Technical Field

[0001] This utility model relates to the field of odorant injection devices, and more particularly to a gas odorant injection device. Background Technology

[0002] Natural gas (mainly composed of methane) is a colorless, odorless, and flammable gas. If a gas pipeline or equipment leaks, people cannot detect it by sight or smell. This may cause the gas to accumulate in a confined space and explode when it reaches the explosive limit and comes into contact with an open flame.

[0003] The main reason for adding odor to gas is to ensure that leaks can be detected in time, thereby preventing safety accidents such as explosions, fires, or poisoning caused by gas leaks. When using existing gas odorant injection devices, odorant is introduced into the inlet pipe and flows along the guide rod into the gas pipeline to come into contact with the gas. However, because the odorant flows relatively fast along the guide rod, it is easy for the odorant to not come into sufficient contact with the gas.

[0004] Therefore, it is necessary to provide a new gas odorant injection device to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a gas odorant injection device.

[0006] The gas odorant injection device provided by this utility model includes a gas pipeline, a connecting pipe fixedly installed on the gas pipeline, an odorant inlet pipe detachably connected to the connecting pipe, a guide rod fixedly installed on the odorant inlet pipe, and liquid in the odorant inlet pipe flowing through an outlet hole opened in the inner wall of the odorant inlet pipe to the guide rod. The outer surface of the guide rod is threaded, and the bottom end of the guide rod extends into the inner cavity of the gas pipeline.

[0007] Preferably, the connecting pipe is connected to a ball valve via a flange, and the input end of the ball valve is detachably connected to the odorant inlet pipe via a flange. The guide rod is inserted into the ball hole inside the ball valve.

[0008] Preferably, a valve is installed on the odorant inlet pipe.

[0009] Preferably, the thread on the outer surface of the guide rod gradually decreases in depth and width along a downward direction.

[0010] Compared with related technologies, the gas odorant injection device provided by this utility model has the following beneficial effects:

[0011] 1. Liquid is introduced into the odorant inlet pipe. The liquid flows out through the outlet on the connecting pipe and moves to the guide rod. It moves down along the threads on the outer surface of the guide rod. The threads on the outer surface of the guide rod can increase the contact area between the odorant liquid and the gas, and can slow down the downward flow speed of the odorant liquid, increasing the contact time between the odorant liquid and the gas, so that the odorant and the gas can be in more sufficient contact.

[0012] 2. In the initial stage of odorant outflow, a deeper and wider thread is used to accommodate more odorant and ensure sufficient odorant participation in mixing. As the odorant flows downwards, the thread depth and width are gradually reduced to make the odorant flow more compact and its contact with the gas more intimate, thereby improving atomization efficiency. Attached Figure Description

[0013] Figure 1 A schematic diagram of the gas odorant injection device provided by this utility model;

[0014] Figure 2 for Figure 1 A partial structural diagram of the structure shown;

[0015] Figure 3 for Figure 2 A schematic diagram of the structure from another angle.

[0016] The following are the labels in the diagram: 1. Gas pipeline; 2. Connecting pipe; 3. Odorant inlet pipe; 4. Guide rod; 5. Outlet; 6. Ball valve; 7. Valve. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Please refer to the following: Figures 1-3 ,in, Figure 1 A schematic diagram of the gas odorant injection device provided by this utility model; Figure 2 for Figure 1 A partial structural diagram of the structure shown; Figure 3 for Figure 2 A schematic diagram of the structure from another angle.

[0019] In the specific implementation process, such as Figures 1-3As shown, the system includes a gas pipeline 1, a connecting pipe 2 fixedly installed on the gas pipeline 1, an odorant inlet pipe 3 detachably connected to the connecting pipe 2, and a guide rod 4 fixedly installed on the odorant inlet pipe 3. Liquid in the odorant inlet pipe 3 flows to the guide rod 4 through an outlet 5 opened in the inner wall of the odorant inlet pipe 3. The outer surface of the guide rod 4 is threaded, and the bottom end of the guide rod 4 extends into the inner cavity of the gas pipeline 1. Liquid is introduced into the connecting pipe 2, flows out through the outlet on the connecting pipe 2 and moves to the guide rod 4, moving downward along the thread on the outer surface of the guide rod 4. The thread on the outer surface of the guide rod 4 can increase the contact area between the odorant liquid and the gas, and can slow down the downward flow speed of the odorant liquid, increasing the contact time between the odorant liquid and the gas, so that the odorant and the gas can be in more sufficient contact.

[0020] The connecting pipe 2 is connected to the ball valve 6 via a flange. The input end of the ball valve 6 is detachably connected to the odorant inlet pipe 3 via a flange. The guide rod 4 is inserted into the ball hole inside the ball valve 6.

[0021] A valve 7 is installed on the odorant inlet pipe 3. The valve 7 can be used to control the opening and closing of the liquid in the connecting pipe.

[0022] The threads on the outer surface of the guide rod 4 gradually decrease in depth and width from top to bottom. In the initial stage of odorant outflow, a deeper and wider thread is used to accommodate more odorant and ensure sufficient odorant to participate in mixing. As the odorant flows downward, the thread depth and width gradually decrease, making the odorant flow more compact and its contact with the gas more intimate, thereby improving atomization efficiency.

[0023] The working principle provided by this utility model is as follows: The threads on the outer surface of the guide rod 4 can increase the contact area between the odorant liquid and the gas, and slow down the downward flow speed of the odorant liquid, increasing the contact time between the odorant liquid and the gas, so that the odorant and the gas can be in more sufficient contact. In the initial stage of odorant outflow, a deeper and wider thread is used to accommodate more odorant and ensure that enough odorant participates in the mixing. As the odorant flows downward, the thread depth and width are gradually reduced, making the odorant flow more compact and the contact with the gas more close, thereby improving the atomization efficiency.

[0024] The circuits and controls involved in this utility model are all existing technologies and will not be described in detail here.

[0025] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A fuel gas odorant injection apparatus characterized by comprising: The utility model provides a gas pipeline and the smelly agent liquid inlet pipe of connecting pipe, the smelly agent liquid inlet pipe is provided with the guide rod, the guide rod is provided with the thread on the outer surface, and the thread depth gradually reduces along from top to bottom direction, and the thread width gradually reduces.

2. The gas odorant injection device of claim 1, wherein, The connecting pipe (2) is connected with the ball valve (6) through the flange, the input end of the ball valve (6) is detachably connected with the smelly agent liquid inlet pipe (3) through the flange, and the guide rod (4) is inserted into the ball hole in the inside of the ball valve (6).

3. The gas odorant injection device of claim 1, wherein, The smelly agent liquid inlet pipe (3) is provided with the valve (7).

4. The gas odorant injection device of claim 1, wherein, The thread on the outer surface of the guide rod (4) gradually reduces along from top to bottom direction, and the thread depth gradually reduces.

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