Gas mixing device for combustion method oil gas treatment equipment

Abstract

The utility model relates to the technical field of oil gas tail gas treatment, in particular to a gas mixing device for combustion method oil gas treatment equipment, which comprises a gas inlet pipe, a combustion pipe, an exhaust pipe, a tail gas inlet pipe, a combustion-supporting gas inlet pipe, an air inlet pipe, combustion equipment, flow guide equipment and a gas outlet cover, the exhaust pipe is installed at the top of the combustion pipe, the tail gas inlet pipe and the air inlet pipe are installed on the surface of the gas inlet pipe, the combustion-supporting gas inlet pipe is arranged at the bottom of the tail gas inlet pipe, and the gas outlet cover is arranged at one end of the tail gas inlet pipe in a sleeving mode. The flow guide equipment is controlled according to the hydrocarbon-containing tail gas concentration, the combustion-supporting gas input amount and the air inlet amount in cooperation with different working states of the combustion equipment, the effective treatment effect of the hydrocarbon-containing tail gas is guaranteed in cooperation with the opening state of the gas nozzle and the opening state of the combustion nozzle, and therefore the hydrocarbon-containing tail gas removal rate is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of oil and gas tail gas treatment, in particular to a gas mixing device for combustion method oil and gas treatment equipment. Background Art

[0002] The combustion method of oil and gas treatment is to use direct combustion, thermal storage oxidation combustion or catalytic oxidation combustion to treat the hydrocarbon-containing gas generated during the storage and transportation process. The carbon dioxide, water and air generated by the combustion are directly discharged as the treated purified gas. However, whether it is direct combustion, thermal storage oxidation combustion or catalytic oxidation combustion process, the content of combustibles in oil and gas is subject to relatively strict restrictions, and the scope of application is limited. The removal rate of combustible substances in the gas of the above combustion technologies is only 95%-98%.

[0003] In the combustion method of oil and gas treatment, the color of the burning flame can be used to determine whether it is fully burned. The flame of incomplete combustion is orange-red, while the flame of complete combustion is light blue. The hydrocarbon-containing gas in the ordinary combustion method oil and gas treatment equipment is not completely treated, which is mainly affected by the mixed combustion gas, air input and combustion methods. Therefore, it is necessary to pay attention to gas mixing and combustion methods when treating hydrocarbon-containing gases to improve the removal rate of hydrocarbon-containing gases. Utility Model Content

[0004] The utility model aims at the defects in the prior art and provides a gas mixing device for combustion method oil and gas processing equipment.

[0005] The utility model is realized through the following technical solutions:

[0006] 14. The smoke generating device of claim 13 wherein the smoke generating device further comprises a smoke generating device and a smoke generating device, wherein the smoke generating device comprises a smoke generating device and a smoke generating device.

[0007] In a preferred embodiment of the utility model, the deflector device includes a deflector, a support frame, a telescopic rod, a shielding cover and a baffle, the support frame is fixedly arranged on the inner side of the bottom of the deflector, the telescopic rod is installed on the upper surface of the support frame, the shielding cover is sleeved on the outer side of the top of the deflector, and the baffle is fixedly arranged on the inner side of the shielding cover;

[0008] The flow guide equipment mainly adjusts the airflow according to the concentration of hydrocarbon-containing gas and the internal combustion effect to match the different combustion states of the combustion equipment, so as to better achieve the removal of hydrocarbon-containing gas.

[0009] In a preferred embodiment of the utility model, the telescopic end of the telescopic rod passes through the top of the air deflector and is fixed to the bottom of the baffle. The top of the air deflector and the surface of the baffle are provided with flow holes, and the flow holes on the top of the air deflector and the flow holes on the surface of the baffle are staggered.

[0010] The telescopic rod is extended to push up the shielding cover of the diversion device, so that part of the airflow is ejected from the top. The gas is guided by the shielding cover and the guide plate to enter the combustion tube, thereby better achieving the exhaust gas treatment effect.

[0011] In a preferred embodiment of the utility model, the surface of the deflector is provided with an air outlet, the inner side of the shield is fitted with the outer side of the deflector, and the baffle is fitted with the top of the deflector;

[0012] When the shielding cover is sleeved on the outside of the guide cover, the gas is discharged through the gas outlet holes on the surface thereof, so that the gas is burned and removed with the assistance of the gas nozzle.

[0013] In a preferred embodiment of the utility model, the air outlet cover is located inside the air inlet pipe, its vertical cross-section is a trumpet-shaped structure, and its air outlet end is vertically arranged upward.

[0014] In a preferred embodiment of the utility model, one end of the gas inlet pipe penetrates and extends into the interior of the combustion support ring, and the combustion support ring and the combustion tube are both hollow structures.

[0015] The beneficial effects of the utility model are:

[0016] The gas mixing device used in the combustion method oil and gas processing equipment can control the airflow according to the needs of use to cooperate with the different working conditions of the combustion equipment, control the flow guide device through the concentration of hydrocarbon tail gas, the input amount of supporting combustion gas and the air intake, and cooperate with the opening state of the gas nozzle and the combustion nozzle to ensure the effective treatment effect of the hydrocarbon tail gas, thereby ensuring the removal rate of the hydrocarbon tail gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a gas mixing device for a combustion method oil and gas processing equipment of the utility model;

[0018] Figure 2 This is a schematic diagram of the combustion equipment structure of the gas mixing device for the combustion method oil and gas processing equipment of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the flow guide device of the gas mixing device for the combustion method oil and gas processing equipment of the utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the flow guide device of the gas mixing device for the combustion method oil and gas processing equipment of the utility model;

[0021] Figure 5 This is a schematic diagram of the installation structure of the flow guide device of the gas mixing device for the combustion method oil and gas processing equipment of the utility model;

[0022] Figure 6 The utility model is a schematic diagram of the installation structure of the gas outlet hood of the gas mixing device for the combustion method oil and gas processing equipment.

[0023] In the figure: 1. air inlet pipe; 2. combustion pipe; 3. exhaust pipe; 4. tail gas inlet pipe; 5. combustion-supporting gas inlet pipe; 6. air inlet pipe; 7. combustion equipment; 71. gas inlet pipe; 72. combustion support ring; 73. gas nozzle; 74. connecting branch pipe; 75. combustion tube; 76. combustion nozzle; 77. support rod; 8. flow guide equipment; 81. flow guide cover; 82. support frame; 83. telescopic rod; 84. shielding cover; 85. baffle; 86. flow guide plate; 9. air outlet cover. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more specific definition of the protection scope of the present invention. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., are only for reference to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present invention, rather than to limit the present invention.

[0025] like Figure 1-6The gas mixing device for a combustion method oil and gas processing equipment shown in the figure comprises an air inlet pipe 1, a combustion pipe 2, an exhaust pipe 3, an exhaust gas inlet pipe 4, a combustion-supporting gas inlet pipe 5, an air inlet pipe 6, a combustion device 7, a flow guide device 8 and an air outlet hood 9. The combustion pipe 2 is installed at the top of the air inlet pipe 1, the exhaust pipe 3 is installed at the top of the combustion pipe 2, the exhaust gas inlet pipe 4 and the air inlet pipe 6 are installed on the surface of the air inlet pipe 1, the combustion-supporting gas inlet pipe 5 is arranged at the bottom of the exhaust gas inlet pipe 4, the air outlet hood 9 is sleeved on one end of the exhaust gas inlet pipe 4, the combustion device 7 is installed inside the combustion pipe 2, and the flow guide device 8 is installed at the combustion pipe 2. On the inner side of the bottom of the burning tube 2, the burning device 7 includes a gas inlet pipe 71, a burning support ring 72, a gas nozzle 73, a connecting branch pipe 74, a burning tube 75, a burning nozzle 76 and a supporting rod 77. The gas inlet pipe 71 is installed on the outer side of the burning tube 2, the supporting rod 77 is fixedly arranged on the inner side of the burning tube 2, the burning support ring 72 is fixedly arranged on one end of the supporting rod 77, the gas nozzle 73 is installed on the upper surface of the burning support ring 72, the burning tube 75 is connected to the inner side of the burning support ring 72 through the connecting branch pipe 74, and the burning nozzle 76 is installed on the inner side of the burning tube 75 obliquely upward.

[0026] Specifically, the flow guide device 8 includes a flow guide cover 81, a support frame 82, a telescopic rod 83, a shielding cover 84 and a baffle 85. The support frame 82 is fixedly arranged on the inner side of the bottom of the flow guide cover 81, the telescopic rod 83 is installed on the upper surface of the support frame 82, the shielding cover 84 is sleeved on the outer side of the top of the flow guide cover 81, and the baffle 85 is fixedly arranged on the inner side of the shielding cover 84. The telescopic end of the telescopic rod 83 passes through the top of the flow guide cover 81 and is fixed to the bottom of the baffle 85. The top of the flow guide cover 81 and the surface of the baffle 85 are provided with There are flow holes, and the flow holes on the top of the guide cover 81 and the flow holes on the surface of the baffle 85 are staggered. The surface of the guide cover 81 is provided with air outlet holes, the inner side of the shielding cover 84 is fitted with the outer side of the guide cover 81, and the baffle 85 is fitted with the top of the guide cover 81. The air outlet cover 9 is located inside the air inlet pipe 1, and its vertical cross-section is a trumpet-shaped structure, and its air outlet end is vertically arranged upward. One end of the gas inlet pipe 71 penetrates and extends to the inside of the combustion support ring 72, and the combustion support ring 72 and the combustion tube 75 are both hollow structures.

[0027] In the present embodiment, the exhaust gas containing hydrocarbon gas first enters through the exhaust gas inlet pipe 4 outside the intake pipe 1, and during the entry process, the auxiliary combustion gas is input through the auxiliary combustion gas inlet pipe 5 to mix with the exhaust gas, and flows into the intake pipe 1 from the bottom of the intake pipe 1 through the outlet hood 9, and then mixed with the air entering through the air inlet pipe 6 to ensure the oxygen supply during combustion, and then the mixed gas enters the combustion tube 2 through the guide device 8, and the mixed gas enters the combustion tube 2 through the outlet holes opened on the surface of the guide hood 81, and then the gas is input through the gas inlet pipe 71, and the gas is mixed and ignited from the gas nozzle 73 on the top of the combustion support ring 72, so that the gas ignites the mixed gas to achieve the hydrocarbon exhaust gas treatment effect.

[0028] Furthermore, if the concentration of hydrocarbon tail gas is high and the airflow is large, resulting in the combustion flame at the gas nozzle 73 being orange-red, it means that the combustion is not complete, the treatment effect of hydrocarbon tail gas is not ideal, and the removal rate is low. At this time, the amount of supporting gas and air entering the supporting gas inlet pipe 5 and the air inlet pipe 6 should be increased, and then the gas is input into the combustion tube 75 through the connecting branch pipe 74, so that the gas is ejected from the combustion nozzle 76, and the electric telescopic rod 83 installed on the top of the support frame 82 is controlled to extend so that the shielding cover 84 fixed at its telescopic end is separated from the top of the guide cover 81 and rises upward. At this time, part of the mixed gas flows out from the air outlet on the surface of the guide cover 81, and part of it flows out through the top of the guide cover 81. And it is sprayed out from the flow holes on the surface of the baffle 85, and under the action of the guide plate 86, the mixed gas forms a spiral airflow and enters the combustion tube 75, so that the external mixed gas is ignited and reacted by the gas nozzle 73, and the internal mixed gas is ignited and reacted by the combustion nozzle 76, and the flame height in the combustion tube 75 is higher, which effectively increases the reaction time, thereby better improving the reaction time and reaction effect of the hydrocarbon-containing gas, thereby ensuring the removal rate of the hydrocarbon-containing gas and improving the removal effect. In order to improve the stability of the combustion equipment 7, the combustion support ring 72 is connected to the inside of the combustion tube 2 through its external support rod 77, and the exhaust pipe 3 is installed on the top of the combustion tube 2 to facilitate further processing of the exhaust gas.

[0029] It should be noted that the parts not covered in the present invention are the same as the prior art or can be implemented by the prior art; the various drives in the present invention can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, motors, etc. in combination with connecting rods, guide rods, etc., and are not limited to the description in the specification and the structures in the drawings.

[0030] In the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "set", "provided with", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0031] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A gas mixing device for a combustion method oil and gas processing equipment, comprising an air inlet pipe (1), a combustion pipe (2), an exhaust pipe (3), an exhaust gas inlet pipe (4), a combustion gas inlet pipe (5), an air inlet pipe (6), a combustion device (7), a flow guide device (8) and an air outlet hood (9), characterized in that: The combustion tube (2) is installed on the top of the intake tube (1), the exhaust tube (3) is installed on the top of the combustion tube (2), the tail gas intake tube (4) and the air intake tube (6) are installed on the surface of the intake tube (1), the combustion-supporting gas intake tube (5) is arranged at the bottom of the tail gas intake tube (4), the exhaust hood (9) is sleeved on one end of the tail gas intake tube (4), the combustion device (7) is installed inside the combustion tube (2), and the flow guide device (8) is installed on the inner side of the bottom of the combustion tube (2); The combustion device (7) comprises a gas inlet pipe (71), a combustion support ring (72), a gas nozzle (73), a connecting branch pipe (74), a combustion tube (75), a combustion nozzle (76) and a support rod (77); the gas inlet pipe (71) is installed on the outside of the combustion tube (2); the support rod (77) is fixedly arranged on the inside of the combustion tube (2); the combustion support ring (72) is fixedly arranged on one end of the support rod (77); the gas nozzle (73) is installed on the upper surface of the combustion support ring (72); the combustion tube (75) is connected to the inside of the combustion support ring (72) through the connecting branch pipe (74); and the combustion nozzle (76) is installed on the inside of the combustion tube (75) in an inclined manner upward.

2. The gas mixing device for combustion oil and gas processing equipment according to claim 1, characterized in that: The flow guide device (8) comprises a flow guide cover (81), a support frame (82), a telescopic rod (83), a shielding cover (84) and a baffle (85); the support frame (82) is fixedly arranged on the inner side of the bottom of the flow guide cover (81); the telescopic rod (83) is installed on the upper surface of the support frame (82); the shielding cover (84) is sleeved on the outer side of the top of the flow guide cover (81); and the baffle (85) is fixedly arranged on the inner side of the shielding cover (84).

3. The gas mixing device for combustion oil and gas processing equipment according to claim 2, characterized in that: The telescopic end of the telescopic rod (83) passes through the top of the air deflector (81) and is fixed to the bottom of the baffle (85). The top of the air deflector (81) and the surface of the baffle (85) are provided with flow holes. The flow holes on the top of the air deflector (81) and the flow holes on the surface of the baffle (85) are arranged in a staggered manner.

4. The gas mixing device for combustion oil and gas processing equipment according to claim 2, characterized in that: The surface of the air guide cover (81) is provided with an air outlet hole, the inner side of the shielding cover (84) is in contact with the outer side of the air guide cover (81), and the baffle (85) is in contact with the top of the air guide cover (81).

5. The gas mixing device for combustion oil and gas processing equipment according to claim 1, characterized in that: The air outlet cover (9) is located inside the air inlet pipe (1), and its vertical cross section is a trumpet-shaped structure, and its air outlet end is arranged vertically upward.

6. The gas mixing device for combustion oil and gas processing equipment according to claim 1, characterized in that: One end of the gas inlet pipe (71) penetrates and extends into the interior of the combustion support ring (72); the combustion support ring (72) and the combustion tube (75) are both hollow structures.

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