Oscillating natural gas odorizing device

Abstract

The present application relates to a kind of oscillation natural gas odorizing device, including gas pipeline, first mixing bin and second mixing bin, first mixing bin upper end pipeline is connected with atomizing bin, atomizing bin top is connected with the liquid filling pipe that can inject odorizing agent, oscillation plate that is set in atomizing bin makes back and forth deflection motion to the atomization of odorizing liquid, rotating fan blade is rotatably installed in first mixing bin, helical blade is rotatably installed in second mixing bin, natural gas and atomized odorizing agent are preliminarily mixed in first mixing bin by rotating fan blade, and together with the original natural gas in second mixing bin, helical blade is mixed by thorough and fast reaction, so that the natural gas in gas pipeline contains a special warning odor, once leak condition appears in the process of use natural gas pipeline, it can be detected in time, it is convenient to find out the pipeline of leakage and take measures, greatly improve the safety of natural gas use.

Description

Technical Field

[0001] This invention relates to the field of natural gas transportation technology, and in particular to an oscillating natural gas odorization device. Background Technology

[0002] Natural gas is a clean and efficient energy source, but it is colorless, odorless, and tasteless. If a leak occurs, it is difficult to detect and can easily cause safety accidents. Therefore, to improve the safety of natural gas, a certain amount of odorant is usually added. Odorant is an organic compound or mixture with a strong odor.

[0003] When odorant is added to natural gas at a very low concentration, it gives the natural gas a special, unpleasant warning odor. If a natural gas pipeline leaks, it can be detected when the concentration reaches the lower explosive limit of 5% or the concentration that is permissible to the human body, making it easier to find the leaking pipeline in time and take measures.

[0004] Currently, after adding odorant to natural gas pipelines, the odorant evaporates very slowly within the pipeline, resulting in an excessively long effective time for the odorant. This makes it difficult for the odorant and natural gas to mix sufficiently, thus posing a significant safety hazard to natural gas pipeline transportation. Summary of the Invention

[0005] The technical problem to be solved by the present invention is: in order to overcome the shortcomings of the prior art, the present invention provides an oscillating natural gas odorization device that can effectively improve the mixing effect of odorant and natural gas.

[0006] The technical solution adopted by the present invention to solve its technical problem is: an oscillating natural gas odorization device, installed on a gas transmission pipeline, having a first mixing chamber and a second mixing chamber, wherein the first mixing chamber is installed on the outer periphery of the gas transmission pipeline, and an inlet pipe and an outlet pipe are respectively connected to both ends of the first mixing chamber, wherein a rotating fan blade in the shape of an Archimedean curve is rotatably installed inside the first mixing chamber, and a spiral blade is rotatably installed inside the second mixing chamber;

[0007] The upper end of the first mixing chamber is connected to an atomizing chamber, and the top of the atomizing chamber is connected to a liquid injection pipe for injecting odorant. The atomizing chamber is equipped with an oscillating plate that performs a back-and-forth deflection motion to atomize the odorant liquid. The top of the atomizing chamber is equipped with an oscillating frame that drives the oscillating baffle plate to move. An oscillating shaft is fixed at the bottom of the oscillating frame, and one end of the oscillating plate is fixedly connected to the oscillating shaft.

[0008] Specifically, the atomizing chamber is equipped with a box at the top, and the upper and lower ends of the oscillation frame are rotatably connected to the box. The oscillation frame includes a first turntable and a second turntable. At least one pair of sliding rods symmetrical about the center of the oscillation frame are connected between the first turntable and the second turntable. A first swing arm and a second swing arm with opposite swing directions are rotatably installed on the inner walls of the box. A rotating shaft is connected between the outer ends of the first swing arm and the second swing arm. Sliding blocks are slidably provided on the sliding rods, and a torsion block is rotatably installed between the sliding blocks. The torsion block is fixed on the rotating shaft.

[0009] Furthermore, a stepper servo motor is installed on the outer wall of the housing, the motor shaft of the stepper servo motor is fixedly connected to the inner end of the first swing arm, a first support shaft is fixed on the side wall of the housing, and the inner end of the second swing arm is rotatably connected to the first support shaft.

[0010] Furthermore, a second support shaft is installed on the inner wall of the upper end of the box, the first turntable is rotatably connected to the second support shaft, and the oscillation shaft is fixed at the center of the bottom surface of the second turntable and rotatably connected to the inner wall of the lower end of the box.

[0011] Preferably, a one-way valve is installed between the air intake pipe and the first mixing chamber, and an activated carbon filter layer is fixed inside the air delivery pipe located behind the air intake end of the air intake pipe.

[0012] The beneficial effects of this invention are as follows: This invention atomizes the injected odorizing liquid by means of an oscillating plate that oscillates back and forth in the atomization chamber, and then initially mixes it with the natural gas introduced into the first mixing chamber. The initially mixed gas then enters the second mixing chamber together with the original natural gas for a complete and rapid mixing reaction. This results in the natural gas in the gas pipeline having a special warning odor, which can be detected in time if a leak occurs in the natural gas pipeline, making it easier to find the leaking pipeline and take measures, thus greatly improving the safety of natural gas use. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the installation structure of the present invention.

[0015] Figure 2 This is a schematic diagram of the installation of the one-way valve described in this invention.

[0016] Figure 3 This is a schematic diagram of the oscillation mechanism described in this invention.

[0017] Figure 4 This is a schematic diagram of the structure of the first mixing chamber of the present invention.

[0018] Figure 5 This is a schematic diagram of the structure of the second mixing chamber of the present invention.

[0019] In the diagram: 1. Gas supply pipe; 2. Inlet pipe; 3. One-way valve; 4. First mixing chamber; 5. Outlet pipe; 6. Second mixing chamber; 7. Liquid filling pipe; 8. Activated carbon filter layer; 9. Housing; 10. Stepper servo motor; 11. Oscillating plate; 12. First swing arm; 13. First turntable; 14. Second swing arm; 15. First support shaft; 16. Rotating shaft; 17. Slider; 18. Second turntable; 19. Slide rod; 20. Rotating fan blade; 21. Support frame; 22. Atomizing chamber; 23. Spiral blade; 24. Nozzle; 25. Oscillating shaft; 26. Second support shaft; 27. Torsion block. Detailed Implementation

[0020] The invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention. In the following description, the direction of natural gas flow in the pipeline is used as the basis for determining the direction.

[0021] like Figures 1-5 The device shown is an oscillating natural gas odorization device installed on a natural gas transmission pipeline 1. A first mixing chamber 4 is installed on the outer periphery of the transmission pipeline 1. The first mixing chamber 4 has an inlet pipe 2 and an outlet pipe 5 at its two ends. The inlet end of the inlet pipe 2 is connected to the transmission pipeline 1, and the outlet end of the inlet pipe 2 is connected to a one-way valve 3. The one-way valve 3 is a Tesla valve. The nozzle 24 end of the Tesla valve is connected to the first mixing chamber 4. The Tesla valve can precisely control the flow rate and flow rate of the fluid, thereby improving the stability of the fluid flow rate. An activated carbon filter layer 8 for adsorbing harmful gases such as hydrogen sulfide in natural gas is fixed inside the transmission pipeline 1 located behind the inlet end of the inlet pipe 2.

[0022] The air inlet of the air outlet pipe 5 is connected to the first mixing chamber 4, and the air outlet of the air outlet pipe 5 is connected to the air supply pipe 1. A second mixing chamber 6 is installed on the air supply pipe 1 in front of the air outlet of the air outlet pipe 5, and the second mixing chamber 6 is then connected to the air supply pipe 1 extending forward.

[0023] A support frame 21 is fixed inside the first mixing chamber 4, and a rotating fan blade 20 in the shape of an Archimedes curve is rotatably mounted on the support frame 21. A spiral blade 23 is rotatably mounted inside the second mixing chamber 6.

[0024] An atomizing chamber 22 is connected to the upper end of the first mixing chamber 4 via a pipe. The atomizing chamber 22 has a conical structure with the smaller end facing the first mixing chamber 4. The larger end of the atomizing chamber 22 is vertically connected to a liquid injection pipe 7 for injecting odorant. This structure allows the odorant liquid to enter the interior of the first mixing chamber 4 more quickly for mixing.

[0025] An oscillating plate 11 is provided inside the atomizing chamber 22, which performs a back-and-forth deflection motion to atomize the odorant liquid. A box 9 is installed on the upper end face of the atomizing chamber 22. An oscillating mechanism that drives the oscillating plate 11 to move is provided inside the box 9. The oscillating mechanism has an oscillating frame. Specifically, the oscillating frame includes a first turntable 13 and a second turntable 18. Four sliding rods 19 are fixed between the first turntable 13 and the second turntable 18. The four sliding rods 19 are arranged in pairs. Each group of sliding rods 19 is symmetrical with respect to the center of the oscillating frame. A slider 17 is slidably provided on each group of sliding rods 19. A torsion block 27 is rotatably installed in the middle of the slider 17.

[0026] A stepper servo motor 10 is installed on the outer wall of the housing 9. A first swing arm 12 and a second swing arm 14 with opposite swing directions are rotatably installed on the inner walls of the housing 9. The motor shaft of the stepper servo motor 10 is fixedly connected to the inner end of the first swing arm 12. A first support shaft 15 is fixed on the side wall of the housing 9. The inner end of the second swing arm 14 is rotatably connected to the first support shaft 15. A rotating shaft 16 is connected between the outer ends of the first swing arm 12 and the outer ends of the second swing arm 14. The torsion block 27 is fixed on the rotating shaft 16.

[0027] A second support shaft 26 is installed on the inner wall of the upper end of the box 9. The first turntable 13 is rotatably connected to the second support shaft 26. An oscillating shaft 25 is fixed at the center of the bottom surface of the second turntable 18. The oscillating shaft 25 is rotatably connected to the inner wall of the lower end of the box 9. One end of the oscillating plate 11 is fixedly connected to the oscillating shaft 25.

[0028] Brief description of working principle:

[0029] First, an odorant is injected into the atomizing chamber 22 through the liquid filling tube 7;

[0030] Then, the stepper servo motor 10 is started, which drives the first swing arm 12 to rotate. The first swing arm 12 drives the rotating shaft 16 to rotate, and then transmits the motion to the second swing arm 14. Since the swing directions of the first swing arm 12 and the second swing arm 14 are opposite, when the first swing arm 12 swings upward, the second swing arm 14 swings downward, and when the first swing arm 12 swings to the left, the second swing arm 14 swings to the right, so that the first swing arm 12 and the second swing arm 14 swing symmetrically, which causes the rotating shaft 16 to generate a torsional motion in the up-down and left-right directions, thereby synchronously driving the torsion block 27 to perform a torsional motion. The torsional motion of the torsion block 27 drives the oscillating frame to swing left and right in the circumferential direction through the slider 17. The second turntable 18 drives the oscillating plate 11 to oscillate back and forth in the atomizing chamber 22 through the oscillating shaft 25, and atomizes the injected odorant.

[0031] Natural gas in the gas pipeline 1 is injected into the first mixing chamber 4 through the inlet pipe 2 and the nozzle 24 on the one-way valve 3. When it passes through the rotating fan blade 20, the natural gas drives the rotating fan blade 20 to rotate. Since the rotating fan blade 20 is composed of three circular blades, these blades are intertwined and then expand to form a three-dimensional conical turbine shape. The rotating fan blade 20 with this structure can draw natural gas and atomized odorant into the interior of the rotating fan blade 20 for preliminary mixing.

[0032] After initial mixing, the natural gas containing the odorant is introduced into the second mixing chamber 6 through the outlet pipe 5, where it merges with the original natural gas in the gas transmission pipeline 1. Through the rotation and turbulence generated by the spiral blades 23, the initial mixed gas and the original natural gas are thoroughly mixed, giving the natural gas in the gas transmission pipeline 1 a special warning odor. If a leak occurs in the natural gas pipeline, it can be detected in time, making it easier to find the leaking pipeline and take measures, which greatly improves the safety of natural gas use.

[0033] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An oscillating natural gas odorization device, installed on a natural gas transmission pipeline, characterized in that: It has a first mixing chamber and a second mixing chamber. The first mixing chamber is installed on the outer periphery of the gas transmission pipeline. An inlet pipe and an outlet pipe are respectively connected to both ends of the first mixing chamber. A rotating fan blade in the shape of an Archimedean curve is rotatably installed inside the first mixing chamber. The second mixing chamber is set on the gas transmission pipeline at the front end of the outlet pipe. A spiral blade is rotatably installed inside the second mixing chamber. The upper end of the first mixing chamber is connected to an atomizing chamber, and the top of the atomizing chamber is connected to a liquid injection pipe for injecting odorant. The atomizing chamber is equipped with an oscillating plate that performs a back-and-forth deflection motion to atomize the odorant liquid. The top of the atomizing chamber is equipped with an oscillating frame that drives the oscillating baffle plate to move. An oscillating shaft is fixed at the bottom of the oscillating frame, and one end of the oscillating plate is fixedly connected to the oscillating shaft. The atomizing chamber is equipped with a housing on top, and the upper and lower ends of the oscillation frame are rotatably connected to the housing. The oscillation frame includes a first turntable and a second turntable. At least one pair of sliding rods symmetrical about the center of the oscillation frame are connected between the first turntable and the second turntable. A first swing arm and a second swing arm with opposite swing directions are rotatably installed on the inner walls of the housing. A rotating shaft is connected between the outer ends of the first swing arm and the second swing arm. Sliding blocks are slidably provided on the sliding rods, and a torsion block is rotatably installed between the sliding blocks. The torsion block is fixed to the rotating shaft.

2. The oscillating natural gas odorization device as described in claim 1, characterized in that: A stepper servo motor is installed on the outer wall of the housing. The motor shaft of the stepper servo motor is fixedly connected to the inner end of the first swing arm. A first support shaft is fixed on the side wall of the housing. The inner end of the second swing arm is rotatably connected to the first support shaft.

3. The oscillating natural gas odorization device as described in claim 1, characterized in that: A second support shaft is installed on the inner wall of the upper end of the box. The first turntable is rotatably connected to the second support shaft. The oscillation shaft is fixed at the center of the bottom surface of the second turntable and is rotatably connected to the inner wall of the lower end of the box.

4. The oscillating natural gas odorization device as described in claim 1, characterized in that: A one-way valve is installed between the air intake pipe and the first mixing chamber, and an activated carbon filter layer is fixed inside the air delivery pipe located behind the air intake end of the air intake pipe.

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