Equipment for effectively adjusting the calorific value of natural gas

Abstract

The present invention provides an apparatus for effectively adjusting the calorific value of natural gas, including a mixing tank, the outside of which is wrapped with a protective shell, the protective shell and the mixing tank are both fixed to a base through a first connecting rod, the top and bottom of the mixing tank are respectively connected to an inlet pipe and an outlet pipe for transporting natural gas, and the upper part of the mixing tank is connected to a plurality of gas delivery parts for conveying gas; a mixing assembly, the mixing assembly is vertically arranged in the inner cavity of the mixing tank, the mixing assembly includes a bearing rod, the top of the bearing rod is rotatably connected to one of the support assemblies, the bottom of the bearing rod is rotatably connected to another support assembly, and the support assembly is fixed to the inner wall of the mixing tank through a second connecting rod. The fully mixed gas can provide a better detection sample for the detection end, and provide a more accurate sample for adjusting the calorific value of natural gas.

Description

Technical Field

[0001] The invention relates to the field of heat energy supply, in particular to a device for effectively adjusting the calorific value of natural gas. Background Art

[0002] The calorific value of natural gas is a physical quantity that indicates how much heat is released when natural gas is burned. Its unit is usually kilojoule per cubic meter (kJ / m³) or kcal per cubic meter (kcal / m³), and is sometimes expressed in British thermal units (BTU). The calorific value of natural gas is affected by many factors, including its composition, combustion conditions, etc. The calorific value of natural gas in different regions may be different. In order to ensure that the calorific value of natural gas is consistent when used, the calorific value will be adjusted, generally to reduce the calorific value.

[0003] The authorized Chinese patent CN 210237553 U discloses a facility system for effectively adjusting the calorific value of natural gas, which can effectively and quickly adjust the mixing amount of air (nitrogen) according to the follow-up flow rate to ensure that the calorific value of the mixed gas meets the follow-up adjustment of the calorific value of natural gas and the downstream gas demand. In the above patent, the gas and air are mainly mixed and adjusted by a mixer, but it may be difficult to achieve the purpose of effectively adjusting the calorific value only by a static mixer.

[0004] Because the technical solution disclosed in the above patent shows that its detection port is downstream, that is, it detects the mixed gas. When the gas is not fully mixed, the detected sample information is inaccurate, which may lead to inaccurate results of calorific value adjustment, bringing adverse effects to the subsequent use of natural gas.

[0005] Therefore, in order to solve the above problems, a device for effectively adjusting the calorific value of natural gas is provided. Summary of the invention

[0006] The present invention provides a device for effectively adjusting the calorific value of natural gas in order to solve the problem that when the gas is not fully mixed, the sample information detected is inaccurate, which may lead to inaccurate results of calorific value adjustment and bring adverse effects on subsequent use of natural gas.

[0007] The present invention solves the above technical problems through the following technical solutions:

[0008] The present invention provides an apparatus for effectively adjusting the calorific value of natural gas, comprising a mixing tank, the outside of which is wrapped with a protective shell, the protective shell and the mixing tank are both fixed to a base through a first connecting rod, the top and bottom of the mixing tank are respectively connected to an inlet pipe and an outlet pipe for transporting natural gas, and the upper part of the mixing tank is connected to a plurality of gas delivery parts for conveying gas;

[0009] A mixing assembly, the mixing assembly is vertically arranged in the inner cavity of the mixing tank, the mixing assembly comprises a bearing rod, the top of the bearing rod is rotatably connected to one of the supporting assemblies, the bottom of the bearing rod is rotatably connected to the other supporting assembly, and the supporting assembly is fixed to the inner wall of the mixing tank through a second connecting rod;

[0010] An impeller-shaped gas mixing module is arranged on the upper part of the bearing rod, and a stirring assembly is arranged on the bearing rod at the bottom of the gas mixing module;

[0011] The air inlet on the air delivery part is located on one side of the mixing module.

[0012] In the present technical solution, the gas delivery part includes a gas delivery pipe, the end of which is connected to a duckbill-shaped air intake shell, which passes through the protective shell and the mixing tank in sequence, and a plurality of evenly distributed air intake ports are provided on the surface of the air intake shell.

[0013] The adjusted gas in the gas transmission pipe is transported by the duckbill-shaped intake shell and then ejected from the intake port to form a flat strip of airflow. The airflow is blown onto the mixing module and mixed with the natural gas.

[0014] Specifically, the support assembly includes a bearing, the outer ring of the bearing is fixed on the inner ring side wall of the mounting ring, and the inner ring of the bearing is sleeved and fixed on the end outer wall of the bearing rod.

[0015] The bearing allows the bearing rod to rotate by itself, thereby achieving stirring and mixing between the natural gas and the adjustment gas, making it convenient to adjust the calorific value of the natural gas.

[0016] Furthermore, the support assembly further comprises support parts distributed in a ring array around the top end of the bearing rod, and the support parts comprise two mutually exclusive blocks arranged in pairs;

[0017] One of the mutually exclusive blocks arranged in pair is fixed on the bottom side wall of the inner ring of the bearing, and the other mutually exclusive block is arranged directly below it. The mutually exclusive block located below is fixed on the mounting ring through a connecting frame. The mutually exclusive blocks arranged in pair are two magnet blocks that repel each other.

[0018] In the present technical solution, an additional down-drive turbine is also included, the top of the support rod passes through the center of the down-drive turbine and is fixed to the down-drive turbine, the down-drive turbine is located directly below the air intake pipe, a flow groove is provided at the bottom of the guide blade on the down-drive turbine, and the flow groove passes through the bottom of the down-drive turbine, and the natural gas flows downward through the flow groove.

[0019] The natural gas that enters the mixing tank from the intake pipe rushes to the surface of the down-drive turbine, and is separated by the guide blades on the surface of the down-drive turbine. At the same time, the down-drive turbine is pushed to rotate by the component force, thereby driving the mixing component to rotate, achieving more efficient gas mixing and improving the efficiency of calorific value adjustment.

[0020] In the present technical solution, the mixing module includes a plurality of guide blades distributed in a ring shape on the bearing rod, the guide blades are distributed vertically, and the guide blades and the flat airflow output by the air transmission part are arranged parallel to each other, and the guide blades are the first guide blades or the second guide blades.

[0021] The first guide blade is an inwardly concave "C"-shaped structure, and the gas flowing out of the gas delivery part blows toward the inwardly concave part of the first guide blade.

[0022] When the airflow blows to the first guide blade, the depression of the first guide blade forms an arc-shaped vortex airflow channel, which makes the airflow form an arc-shaped reflux, thereby forming a cross with the natural gas airflow from top to bottom, improving the mixing efficiency and effect, and providing more accurate samples for subsequent test results.

[0023] A plurality of drainage shells are fixed on the surface of the raised portion of the first guide blade, which are evenly distributed and inclined toward one side of the load-bearing rod. The drainage shells cover the through grooves opened on the first guide blade. The drainage shells and the through grooves correspond one to one. The cross-section of the drainage shells is a fish fin-shaped structure, and the two sides of the drainage shells are connected to each other.

[0024] The above technical solution is more suitable for adjusting the working conditions where the gas has a relatively high pressure.

[0025] Furthermore, the second guide blade is an "S"-shaped structure formed by two "C"-shaped plates connected to each other or integrally formed, and the gas flowing out of the gas transmission part is blown toward the recessed portion on the outer side of the second guide blade.

[0026] The airflow of the adjusted gas is blown to the first concave portion of the second guide blade to form a return airflow.

[0027] The second guide blade is also provided with a guide plate, which is arranged at the connection center of two "C"-shaped structural plates constituting the second guide blade. The guide plate is in an arc-shaped structure, and a plurality of guide grooves are opened on the guide plate.

[0028] The airflow of the adjusted gas is blown to the first concave portion of the second guide blade and then passes through the guide groove on the guide plate to form a plurality of stable reflux airflows, thereby achieving the purpose of rapid mixing.

[0029] Specifically, a plurality of evenly distributed drainage holes are provided on the convex surface of the guide plate, and an arc-shaped drainage plate is fixed on the convex surface of the guide plate on one side of the drainage holes, and the drainage plate is arranged on the side of the drainage holes away from the guide plate.

[0030] Part of the adjusted gas flow passing through the guide plate flows to the end of the guide plate, and the other part of the flow passes through the drainage holes and is blown to the guide plate to form multiple airflows with smaller diameters, further improving the mixing effect.

[0031] In the technical solution, the stirring assembly includes a plurality of mounting rods fixed on the bearing rod and distributed in a ring array, and a plurality of evenly distributed stirring parts are fixed on the mounting rods.

[0032] During the operation of the stirring assembly, the rotation of the bearing rod drives the multiple stirring parts on the mounting rod to rotate, thereby realizing mechanical mixing between the natural gas and the adjustment gas and improving the mixing efficiency.

[0033] The stirring part comprises a first stirring blade and a second stirring blade, wherein the first stirring blade and the second stirring blade are both fixed on the mounting rod, and an angle between the first stirring blade and the second stirring blade is an obtuse angle;

[0034] The first stirring blade tends to be arranged in the horizontal direction, the angle between the first stirring blade and the horizontal direction is less than twenty degrees, and the surface of one side of the top of the first stirring blade close to the mounting rod is recessed inward to form a guide groove, and the top of the second stirring blade is a slope structure.

[0035] Specifically, when the gas after preliminary mixing in the mixing module passes through the mixing assembly from top to bottom, a part of the gas is synchronously divided in the horizontal and vertical directions after passing through the rotating second stirring blade. The airflow passing through the upper surface of the second stirring blade is guided to the first stirring blade and then flows to the side close to the horizontal direction, forming an airflow close to the horizontal direction, thereby improving the mixing efficiency.

[0036] The guide groove can generate vortex in the airflow passing through the first stirring blade, and can also further improve the mixing efficiency.

[0037] The gas pipeline is also provided with a filter assembly, the filter assembly includes a connecting pipe, the connecting pipe is connected to the gas pipeline through a flange, a mounting shell is fixed on the outer wall of the gas pipeline, and a driving part is arranged inside the mounting shell;

[0038] A filter screen, wherein the filter screen is covered on a first mounting frame, the first mounting frame is fixed on the inner wall of the connecting pipe, and a vibrating part is provided on the first mounting frame;

[0039] The driving part is in transmission connection with the vibrating part through a driving rod, and the driving part drives the vibrating part to vibrate the filter screen on the first mounting frame through the driving rod, and an inclined plate is fixed at the bottom of the driving rod.

[0040] Impurities in the adjustment gas can be filtered out through the filter assembly.

[0041] The driving part drives the driving rod to move back and forth in the vertical direction. The driving part includes a motor and a crank-connecting rod structure. The motor and the crank-connecting rod structure are connected to each other.

[0042] In the technical solution, the motor is fixed to the inner wall of the mounting shell through the second mounting bracket, the driving connecting rod structure includes a first connecting rod and a second connecting rod, one end of the first connecting rod is fixed to the output shaft of the motor, and the other end of the first connecting rod is rotatably connected to one end of the second connecting rod, and the other end of the second connecting rod is rotatably connected to the top of the driving rod, the driving rod is arranged in a vertical direction, and the driving rod sequentially penetrates the side walls of the mounting shell and the connecting pipe and extends into the inner cavity of the connecting pipe;

[0043] The driving rod and the connecting pipe are connected by a sliding seal. The above-mentioned sliding seal connection structure is a prior art, so it is not shown in the figure. The inclined plate at the bottom of the driving rod is transmission-connected to the vibration part. The driving rod is preferably a cylindrical structure to facilitate the establishment of a sliding seal connection structure.

[0044] The motor drives the crank-connecting rod structure to operate, thereby driving the driving rod to perform reciprocating motion in the vertical direction.

[0045] In the technical solution, the vibration part includes a rotating column, a connecting plate is fixed on the annular outer wall of the rotating column, a trigger plate that can contact the inclined plate is rotatably connected to the connecting plate, and an arc spring is fixed between the trigger plate and the connecting plate;

[0046] The rotating column is rotatably mounted on the second mounting frame through the limiting frame, that is, the rotating column can rotate on the limiting frame, a coil spring is arranged between the connection between the rotating column and the limiting frame, a knocking plate is also fixed on the annular outer wall of the rotating column, and the knocking plate can overlap with the lap plate on the first mounting frame. When the rotating column is only subjected to the force of the coil spring, the knocking plate overlaps with the lap plate, at which time, the coil spring is deformed, and the elastic coefficient of the coil spring is greater than the elastic coefficient of the arc spring;

[0047] The limit plate is fixed on the top of the connecting plate, and the limit plate can overlap with the top of the trigger plate, that is, the limit plate is arranged on the same side of the connecting plate and the limit plate, and the arc spring makes the trigger plate fit with the limit plate without external force.

[0048] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0049] The positive and progressive effects of the present invention are:

[0050] The natural gas whose calorific value needs to be reduced enters the top of the mixing tank through the air inlet pipe. The natural gas hits the down-drive turbine and drives the down-drive turbine to rotate, thereby driving the load-bearing rod to rotate. The rotating load-bearing rod drives the stirring assembly to rotate, thereby achieving faster and better gas mixing effects and improving the efficiency of calorific value adjustment. The fully mixed gas can provide better detection samples for the detection end and provide more accurate samples for the adjustment of the calorific value of natural gas.

[0051] The adjustment gas is sprayed onto the gas mixing module from the gas delivery part, thereby further promoting the rotation of the bearing rod and improving the reliability of the entire mixing assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 It is a schematic diagram of the external three-dimensional structure of the present invention;

[0053] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0054] Figure 3 For the present invention Figure 2 A local enlarged structural schematic diagram;

[0055] Figure 4 It is a schematic diagram of the top view of the structure of the down-drive turbine of the present invention;

[0056] Figure 5 This is a schematic diagram of the positional relationship between the down-drive turbine and the flow slot of the present invention;

[0057] Figure 6 The three-dimensional structure of the stirring assembly of the present invention is intended;

[0058] Figure 7 It is a structural schematic diagram of the stirring part of the present invention;

[0059] Figure 8 It is a schematic diagram of the position structure of the first guide blade and the air inlet shell of the present invention;

[0060] Fig. 9 It is a schematic diagram of the structure of the first guide blade with a guide shell of the present invention;

[0061] Fig.10 It is a schematic diagram of the position structure of the second guide blade and the air inlet shell of the present invention;

[0062] Fig.11 It is a schematic diagram of the structure of the second guide blade with a guide plate of the present invention;

[0063] Fig.12 It is a schematic diagram of the three-dimensional structure of the second guide blade with a guide plate of the present invention;

[0064] Fig.13 It is a schematic diagram of the three-dimensional structure of the second guide blade with a guide plate of the present invention;

[0065] Fig.14 It is a schematic diagram of the three-dimensional structure of a single second guide blade with a guide plate of the present invention;

[0066] Fig.15 Schematic diagram of the three-dimensional structure of the first guide blade of the engine;

[0067] Fig.16 It is a structural schematic diagram of the air intake shell of the present invention;

[0068] Fig.17 It is a schematic diagram of the structure of the filter assembly of the present invention;

[0069] Fig.18 For the present invention Fig.17 Schematic diagram of the local enlarged structure at point B.

[0070] Description of reference numerals:

[0071] 1. Mixing tank; 11. Air inlet pipe; 12. Air outlet pipe;

[0072] 2. Protective shell; 21. Base;

[0073] 3. Load-bearing rod;

[0074] 4. Support assembly; 41. Bearing; 42. Mounting ring; 43. Mutually exclusive block;

[0075] 5. Down-drive turbine; 51. Flow slot;

[0076] 6. gas mixing module; 61. first guide blade; 611. guide shell; 62. second guide blade; 621. guide plate; 622. guide plate; 623. drainage hole; 624. guide groove;

[0077] 7. stirring assembly; 71. stirring portion; 711. first stirring blade; 711a. flow guide groove; 712. second stirring blade; 72. mounting rod;

[0078] 8. gas transmission pipe; 81. air intake shell; 82. air intake port;

[0079] 9. Filter assembly; 91. Connecting pipe; 92. First mounting bracket; 93. Filter screen; 94. Driving unit; 941. Motor; 942. Second mounting bracket; 943. First connecting rod; 944. Second connecting rod; 945. Driving rod; 946. Inclined plate; 95. Vibrating unit; 951. Rotating column; 952. Connecting plate; 953. Trigger plate; 954. Limiting plate; 955. Knocking plate; 956. Lapping plate; 957. Limiting bracket; 96. Mounting shell. DETAILED DESCRIPTION

[0080] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0081] like Figure 1 and Figure 2 As shown, the device for effectively adjusting the calorific value of natural gas comprises a mixing tank 1, the outside of the mixing tank 1 is wrapped with a protective shell 2, the protective shell 2 and the mixing tank 1 are fixed to a base 21 through a first connecting rod, the top and bottom of the mixing tank 1 are respectively connected to an inlet pipe 11 and an outlet pipe 12 for transporting natural gas, and the upper part of the mixing tank 1 is connected to a plurality of gas delivery parts for conveying gas;

[0082] A mixing assembly, the mixing assembly is vertically arranged in the inner cavity of the mixing tank 1, the mixing assembly includes a bearing rod 3, the top of the bearing rod 3 is rotatably connected to one of the supporting assemblies 4, the bottom of the bearing rod 3 is rotatably connected to another supporting assembly 4, and the supporting assembly 4 is fixed to the inner wall of the mixing tank 1 through a second connecting rod;

[0083] An impeller-shaped gas mixing module 6 is disposed on the upper portion of the bearing rod 3 , and a stirring assembly 7 is disposed on the bearing rod 3 at the bottom of the gas mixing module 6 ;

[0084] The air inlet 82 on the air delivery portion is located on one side of the mixing module.

[0085] Embodiment 1

[0086] As one of the embodiments of this technical solution, Fig.16 The gas delivery part shown includes a gas delivery pipe 8, and a duckbill-shaped air inlet shell 81 is connected to the end of the gas delivery pipe 8. The air inlet shell 81 passes through the protective shell 2 and the mixing tank 1 in sequence, and a plurality of evenly distributed air inlets 82 are opened on the surface of the air inlet shell 81.

[0087] The adjusted gas in the gas delivery pipe 8 is transported by the duckbill-shaped gas inlet shell 81 and ejected from the gas inlet 82 to form a flat strip of airflow. The airflow is blown onto the gas mixing module 6 and mixed with the natural gas.

[0088] Embodiment 2

[0089] As one of the embodiments of this technical solution, Figure 3 As shown, the support assembly 4 includes a bearing 41 , the outer ring of the bearing 41 is fixed on the inner ring side wall of the mounting ring 42 , and the inner ring of the bearing 41 is sleeved and fixed on the end outer wall of the bearing rod 3 .

[0090] The bearing rod 3 can rotate by the bearing 41, so as to achieve stirring and mixing between the natural gas and the adjustment gas, thereby facilitating the adjustment of the calorific value of the natural gas.

[0091] Furthermore, the support assembly 4 further comprises support parts distributed in a ring array around the top of the bearing rod 3, and the support parts comprise two mutually exclusive blocks 43 arranged in pairs;

[0092] One of the mutually exclusive blocks 43 arranged in pair is fixed on the bottom side wall of the inner ring of the bearing 41, and the other mutually exclusive block 43 is arranged directly below it, and the mutually exclusive block 43 located below is fixed on the mounting ring 42 through a connecting frame. The mutually exclusive blocks 43 arranged in pair are two repelling magnetic blocks.

[0093] Specifically, the two mutually exclusive blocks 43 arranged in pairs generate repulsive force on each other, which reduces the pressure of the overall mass of the mixing assembly on the inner ring of the bearing 41 through the repulsive force, that is, reduces the friction between the inner ring and the outer ring of the bearing 41, facilitates the rotation of the mixing assembly under the action of various gases, reduces the loss of gas pressure, and improves the reliability of the entire device.

[0094] Embodiment 3

[0095] As one of the embodiments of this technical solution, Figure 2 , Figure 4 and Figure 5 As shown, it also includes an additional down-drive turbine 5, the top of the support rod 3 passes through the center of the down-drive turbine 5 and is fixed to the down-drive turbine 5, the down-drive turbine 5 is located directly below the intake pipe 11, and a flow groove 51 is provided at the bottom of the guide blade on the down-drive turbine 5, and the flow groove 51 passes through the bottom of the down-drive turbine 5, and the natural gas flows downward through the flow groove 51.

[0096] The natural gas entering the mixing tank 1 from the air intake pipe 11 rushes to the surface of the down-drive turbine 5, and is separated by the guide blades on the surface of the down-drive turbine 5. At the same time, the down-drive turbine 5 is driven to rotate by the component force, thereby driving the mixing component to rotate, achieving more efficient gas mixing and improving the adjustment efficiency of the calorific value.

[0097] Embodiment 4

[0098] As one of the embodiments of this technical solution, Figure 8-15 As shown, the mixing module 6 includes a plurality of guide blades distributed in a ring shape on the bearing rod 3, the guide blades are distributed vertically, and the guide blades and the flat airflow output by the air delivery part are arranged parallel to each other, and the guide blades are the first guide blades 61 or the second guide blades 62.

[0099] The first guide blade 61 is a “C”-shaped structure formed by being inwardly concave, and the gas flowing out of the gas delivery portion is blown toward the inwardly concave portion of the first guide blade 61 .

[0100] The airflow blows to the first guide blade 61, and the depression of the first guide blade 61 forms an arc-shaped vortex airflow channel, so that the airflow forms an arc-shaped reflux, thereby forming a cross with the natural gas airflow from top to bottom, improving the mixing efficiency and effect, and providing a more accurate sample for subsequent detection results.

[0101] At the same time, the first guide blade 61 of the “C”-shaped structure can hold the airflow, so as to facilitate the rotation of the mixing module 6 .

[0102] Specifically, a plurality of drainage shells 611 are fixed on the surface of the raised portion of the first guide blade 61, which are evenly distributed and inclined toward one side of the load-bearing rod 3. The drainage shells 611 cover the through grooves opened on the first guide blade 61. The drainage shells 611 and the through grooves correspond one to one. The cross-section of the drainage shell 611 is a fish-fin-shaped structure, and the two sides of the drainage shell 611 are connected to each other.

[0103] Part of the airflow blowing to the first guide blade 61 flows out from the other side of the first guide blade 61, and the other part flows out from the fin-shaped guide shell 611 to form a small airflow, further improving the mixing efficiency of the regulated gas and natural gas.

[0104] The above technical solution is more suitable for adjusting the working conditions where the gas has a relatively high pressure.

[0105] Specifically, the second guide blade 62 is an "S"-shaped structure formed by two "C"-shaped plates connected to each other or integrally formed, and the gas flowing out of the gas transmission part is blown toward the recessed portion of the second guide blade 62 located on the outside.

[0106] The airflow of the adjusted gas is blown to the first recessed portion of the second guide blade 62 to form a return airflow.

[0107] The second guide blade 62 is also provided with a guide plate 621 , which is provided at the connection center of the two “C”-shaped structural plates constituting the second guide blade 62 . The guide plate 621 is an arc-shaped structure, and a plurality of guide grooves 624 are opened on the guide plate 621 .

[0108] The airflow of the adjusted gas is blown to the first recessed portion of the second guide blade 62 and then passes through the guide groove 624 on the guide plate 621 to form a plurality of stable reflux airflows, thereby achieving the purpose of rapid mixing.

[0109] A plurality of evenly distributed drainage holes 623 are provided on the convex surface of the guide plate 621 , and an arc-shaped guide plate 622 is fixed on the convex surface of the guide plate 621 on one side of the drainage holes 623 , and the guide plate 622 is arranged on the side of the drainage holes 623 away from the guide plate 621 .

[0110] A portion of the adjusted gas flow passing through the guide plate 621 flows to the end of the guide plate 621 , and another portion of the flow passes through the guide holes 623 and is blown to the guide plate 622 to form multiple airflows with smaller diameters, further improving the mixing effect.

[0111] The stirring assembly 7 includes a plurality of mounting rods 72 fixed on the bearing rod 3 and distributed in a ring array, and a plurality of evenly distributed stirring parts 71 are fixed on the mounting rods 72 .

[0112] During the operation of the stirring assembly 7, the bearing rod 3 rotates to drive the multiple stirring parts 71 on the mounting rod 72 to rotate, thereby achieving mechanical mixing between the natural gas and the adjustment gas and improving the mixing efficiency.

[0113] Embodiment 5

[0114] As one of the embodiments of this technical solution, Figure 6 and Figure 7 As shown, the stirring portion 71 includes a first stirring blade 711 and a second stirring blade 712, the first stirring blade 711 and the second stirring blade 712 are both fixed on the mounting rod 72, and the angle between the first stirring blade 711 and the second stirring blade 712 is an obtuse angle;

[0115] The first stirring blade 711 tends to be arranged in the horizontal direction, and the angle between the first stirring blade 711 and the horizontal direction is less than 20 degrees. The surface of one side of the top of the first stirring blade 711 close to the mounting rod 72 is recessed inward to form a guide groove 711a, and the top of the second stirring blade 712 is a slope structure.

[0116] When the gas that has been preliminarily mixed by the mixing module passes through the mixing component from top to bottom, a part of the gas passes through the rotating second stirring blade 712 and is synchronously divided in the horizontal and vertical directions. The airflow passing through the upper surface of the second stirring blade 712 is guided to the first stirring blade 711 and then flows to the side close to the horizontal direction, forming an airflow close to the horizontal direction, thereby improving the mixing efficiency.

[0117] The guide groove 711 a can generate vortex in the airflow passing through the first stirring blade 711 , and can further improve the mixing efficiency.

[0118] Embodiment 6

[0119] As one of the embodiments of this technical solution, Figure 3 As shown, the gas delivery pipe 8 is further provided with a filter assembly 9, the filter assembly 9 includes a connecting pipe 91, the connecting pipe 91 is connected to the gas delivery pipe 8 through a flange, a mounting shell 96 is fixed on the outer wall of the gas delivery pipe 8, and a driving part 94 is arranged inside the mounting shell 96;

[0120] A filter screen 93, wherein the filter screen 93 is covered on a first mounting frame 92, wherein the first mounting frame 92 is fixed on the inner wall of the connecting pipe 91, and a vibrating portion 95 is provided on the first mounting frame 92;

[0121] The driving part 94 is connected to the vibrating part 95 through a driving rod 945 , and the driving part 94 drives the vibrating part 95 to vibrate the filter screen 93 on the first mounting frame 92 through the driving rod 945 . An inclined plate 946 is fixed to the bottom of the driving rod 945 .

[0122] Impurities in the adjustment gas can be filtered out by the filter assembly 9 .

[0123] Specifically, the driving part 94 drives the driving rod 945 to reciprocate in the vertical direction. The driving part 94 includes a motor 941 and a crank-connecting rod structure. The motor 941 and the crank-connecting rod structure are connected to each other.

[0124] The motor 941 is fixed to the inner wall of the mounting shell 96 through the second mounting bracket 942, and the driving connecting rod structure includes a first connecting rod 943 and a second connecting rod 944, one end of the first connecting rod 943 is fixed to the output shaft of the motor 941, and the other end of the first connecting rod 943 is rotatably connected to one end of the second connecting rod 944, and the other end of the second connecting rod 944 is rotatably connected to the top of the driving rod 945, and the driving rod 945 is arranged in the vertical direction, and the driving rod 945 sequentially penetrates the side walls of the mounting shell 96 and the connecting pipe 91 and extends into the inner cavity of the connecting pipe 91;

[0125] The driving rod 945 and the connecting pipe 91 are connected by a sliding seal. The above-mentioned sliding seal connection structure is a prior art and is not shown in the figure. The inclined plate 946 at the bottom of the driving rod 945 is connected to the vibration part 95 in transmission. The driving rod 945 is preferably a cylindrical structure to facilitate the establishment of a sliding seal connection structure.

[0126] The motor 941 drives the crank-connecting rod structure to operate, thereby driving the driving rod 945 to perform reciprocating motion in the vertical direction.

[0127] The vibration part 95 includes a rotating column 951, a connecting plate 952 is fixed on the annular outer wall of the rotating column 951, a trigger plate 953 that can contact the inclined plate 946 is rotatably connected to the connecting plate 952, and an arc spring is fixed between the trigger plate 953 and the connecting plate 952;

[0128] The rotating column 951 is rotatably mounted on the first mounting frame 92 via the limiting frame 957, that is, the rotating column 951 can rotate on the limiting frame 957, a coil spring is provided between the connection between the rotating column 951 and the limiting frame 957, a knocking plate 955 is also fixed on the annular outer wall of the rotating column 951, and the knocking plate 955 can overlap with the lap plate 956 on the first mounting frame 92. When the rotating column 951 is only subjected to the force of the coil spring, the knocking plate 955 overlaps with the lap plate 956, at which time, the coil spring is deformed, and the elastic coefficient of the coil spring is greater than the elastic coefficient of the arc spring;

[0129] The limit plate 954 is fixed on the top of the connecting plate 952, and the limit plate 954 can overlap with the top of the trigger plate 953, that is, the limit plate 954 is arranged on the same side of the connecting plate 952 and the limit plate 954, and the arc spring makes the trigger plate 953 fit with the limit plate 954 without external force.

[0130] The driving rod 945 makes a reciprocating motion driven by the crank connection structure. When the driving rod 945 is driven to move downward, the inclined plate 946 at the bottom of the driving rod 945 pushes the trigger plate 953 to rotate downward until the inclined plate 946 is at the bottom of the trigger plate 953. At this time, the arc spring is deformed. In the process of the driving rod 945 moving upward, the inclined plate 946 hooks one end of the trigger plate 953. At this time, the trigger plate 953 rotates upward. When the trigger plate 953 rotates to the limit plate 954, the trigger plate 953 directly drives the connecting plate 952 to rotate. At this time, the coil spring is deformed until the inclined plate 946 is separated from the trigger plate 953. In the process of restoring the deformation, the coil spring drives the knocking plate 955 to knock on the lap plate 956, thereby realizing the knocking of the first mounting frame 92 and vibrating the filter screen 93 to avoid excessive impurities accumulating on the filter screen 93, affecting the efficiency of adjusting the gas passing through the filter screen 93, and avoiding excessive consumption of the adjustment gas pressure during transportation.

[0131] Each component in the specific hybrid assembly in the present application can be made of a material with relatively light weight and relatively high strength, such as engineering plastics.

[0132] The present invention is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the present invention. The protection scope of the present invention is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications are within the protection scope of the present invention.

Claims

1. An apparatus for effectively adjusting the calorific value of natural gas, comprising a mixing tank (1), the outside of the mixing tank (1) being wrapped with a protective shell (2), the protective shell (2) and the mixing tank (1) being fixed to a base (21) by a first connecting rod, the top and bottom of the mixing tank (1) being respectively connected to an inlet pipe (11) and an outlet pipe (12) for transporting natural gas, the upper part of the mixing tank (1) being connected to a plurality of gas delivery parts for conveying gas, characterized in that: A mixing assembly, the mixing assembly being arranged vertically in the inner cavity of the mixing tank (1), the mixing assembly comprising a bearing rod (3), the top of the bearing rod (3) being rotatably connected to one of the supporting assemblies (4), the bottom of the bearing rod (3) being rotatably connected to another supporting assembly (4), and the supporting assembly (4) being fixed to the inner wall of the mixing tank (1) via a second connecting rod; An impeller-shaped gas mixing module (6) is arranged on the upper part of the bearing rod (3), and a stirring assembly (7) is arranged on the bearing rod (3) at the bottom of the gas mixing module (6); The air inlet (82) on the air delivery portion is located on one side of the mixing module; It also includes an additional lower drive turbine (5), the top of the bearing rod (3) passes through the center of the lower drive turbine (5) and is fixed to the lower drive turbine (5), the lower drive turbine (5) is located directly below the air intake pipe (11), a flow groove (51) is provided at the bottom of the guide blade on the lower drive turbine (5), and the flow groove (51) passes through the bottom of the lower drive turbine (5); The stirring assembly (7) comprises a plurality of mounting rods (72) fixed on the bearing rod (3) and distributed in a ring array, and a plurality of evenly distributed stirring parts (71) are fixed on the mounting rods (72); The stirring portion (71) comprises a first stirring blade (711) and a second stirring blade (712), wherein the first stirring blade (711) and the second stirring blade (712) are both fixed on the mounting rod (72), and an angle between the first stirring blade (711) and the second stirring blade (712) is an obtuse angle; The first stirring blade (711) is arranged in a horizontal direction, the angle between the first stirring blade (711) and the horizontal direction is less than 20 degrees, and the surface of one side of the top of the first stirring blade (711) close to the mounting rod (72) is recessed inward to form a guide groove (711a), and the top of the second stirring blade (712) is a slope structure.

2. The device for effectively adjusting the calorific value of natural gas according to claim 1, characterized in that: The gas delivery section comprises a gas delivery pipe (8), the end of which is connected to a duckbill-shaped gas inlet shell (81), the gas inlet shell (81) sequentially passes through the protective shell (2) and the mixing tank (1), and a plurality of evenly distributed gas inlets (82) are provided on the surface of the gas inlet shell (81).

3. The device for effectively adjusting the calorific value of natural gas according to claim 1, characterized in that: The support assembly (4) comprises a bearing (41), the outer ring of the bearing (41) is fixed on the inner ring side wall of the mounting ring (42), and the inner ring of the bearing (41) is sleeved and fixed on the end outer wall of the bearing rod (3).

4. The device for effectively adjusting the calorific value of natural gas according to claim 1, characterized in that: The air mixing module (6) comprises a plurality of guide blades distributed in an annular shape on the bearing rod (3), the guide blades being distributed vertically, and the guide blades and the flat airflow output by the air delivery part being arranged parallel to each other, and the guide blades are first guide blades (61) or second guide blades (62).

5. The device for effectively adjusting the calorific value of natural gas according to claim 4, characterized in that: The first guide blade (61) is a "C"-shaped structure formed by being inwardly concave, and the gas flowing out of the gas delivery portion is blown toward the inwardly concave portion of the first guide blade (61); The second guide blade (62) is an "S"-shaped structure formed by two "C"-shaped plates connected to each other or integrally formed, and the gas flowing out of the gas transmission part is blown toward the recessed portion located on the outer side of the second guide blade (62).

6. The device for effectively adjusting the calorific value of natural gas according to claim 2, characterized in that: The gas delivery pipe (8) is also provided with a filter assembly (9), the filter assembly (9) comprising a connecting pipe (91), the connecting pipe (91) being connected to the gas delivery pipe (8) via a flange, a mounting shell (96) being fixed on the outer wall of the gas delivery pipe (8), a driving unit (94) being provided inside the mounting shell (96); A filter screen (93), the filter screen (93) being covered on a first mounting frame (92), the first mounting frame (92) being fixed on an inner wall of the connecting pipe (91), and a vibrating portion (95) being provided on the first mounting frame (92); The driving part (94) is in transmission connection with the vibrating part (95) via a driving rod (945), and the driving part (94) drives the vibrating part (95) to vibrate the filter screen (93) on the first mounting frame (92) via the driving rod (945), and an inclined plate (946) is fixed to the bottom of the driving rod (945); The driving part (94) drives the driving rod (945) to move back and forth in the vertical direction. The driving part (94) comprises a motor (941) and a crank-connecting rod structure. The motor (941) and the crank-connecting rod structure are connected to each other.

7. The device for effectively adjusting the calorific value of natural gas according to claim 6, characterized in that: The vibration part (95) comprises a rotating column (951), a connecting plate (952) is fixed on the annular outer wall of the rotating column (951), a trigger plate (953) which can contact the inclined plate (946) is rotatably connected to the connecting plate (952), and an arc spring is fixed between the trigger plate (953) and the connecting plate (952); The rotating column (951) is rotatably mounted on the first mounting frame (92) via a limiting frame (957); a coil spring is provided between the connection between the rotating column (951) and the limiting frame (957); a knocking plate (955) is also fixed on the annular outer wall of the rotating column (951); the knocking plate (955) can overlap with a lap plate (956) on the first mounting frame (92); The limiting plate (954) is fixed on the top of the connecting plate (952), and the limiting plate (954) can overlap with the top of the triggering plate (953).

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