A natural gas circulation booster device for a thermal deburring machine

Abstract

This invention discloses a natural gas circulation booster device for a thermal deburring machine. The circulation booster device includes: a gas booster pump, comprising a pump body and a piston movably disposed within the pump body cavity, with an inlet and an outlet at both ends of the pump body; a natural gas pipe, one end of which is connected to a natural gas pipeline, and the other end connected to the inlet; an air compressor, the outlet of which is connected to a first gas pipe, which is connected to the pump body; and a gas storage tank, one end of which is connected to a second gas pipe, and the other end of which is connected to a third gas pipe. By using compressed air provided by the air compressor as a power source to drive the piston movement within the gas booster pump, components that may generate electrical sparks are completely isolated from natural gas, fundamentally eliminating the risk of combustion and explosion. Simultaneously, the gas storage tank effectively smooths the pressure pulsations of the booster pump's output and provides sufficient high-pressure gas reserves for the peak instantaneous combustion requirements of the deburring machine.

Description

Technical Field

[0001] This invention relates to the field of gas supply equipment, and in particular to a natural gas circulation booster device for a thermal deburring machine. Background Technology

[0002] Thermal deburring is a highly efficient surface treatment process. Its principle involves mixing oxygen and combustible gas (usually natural gas) in a specific ratio and igniting it instantaneously in a sealed chamber. This produces a short, intense high-temperature explosion that burns away burrs from the inside and outside of parts, especially at complex intersections. This process requires extremely high stability in the pressure and flow rate of the combustion gas.

[0003] Currently, thermal deburring machines typically use municipal natural gas supplied through pipelines. However, the pressure of natural gas in municipal pipelines is generally low and fluctuates, especially during peak gas consumption periods when the pressure drop is more pronounced. This pressure instability directly leads to an imbalance in the air-fuel mixture ratio within the deburring machine's combustion chamber, resulting in incomplete combustion and insufficient explosion energy. The consequence is poor deburring performance, with some burrs failing to be effectively removed, or the same workpiece requiring multiple processing runs, reducing production efficiency and increasing energy consumption and costs. Summary of the Invention

[0004] In view of this, the present invention addresses the deficiencies of the prior art, and its main objective is to provide a natural gas circulation booster device for a thermal deburring machine, which solves the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a natural gas circulating pressurization device for a thermal deburring machine, the circulating pressurization device comprising;

[0006] A gas booster pump includes a pump body and a piston that is movable in the inner cavity of the pump body. The pump body has an air inlet and an air outlet at both ends.

[0007] Natural gas pipeline: One end of the natural gas pipeline is connected to the natural gas pipeline, and the other end is connected to the gas inlet;

[0008] An air compressor, the air outlet of which is connected to a first air pipe, and the first air pipe is connected to the pump body;

[0009] The gas tank has a second air pipe connected to one end and a third air pipe connected to the other end. One end of the second air pipe is connected to the pump body cavity, and one end of the third air pipe is connected to the deburring machine.

[0010] Furthermore, the pump body includes a main chamber and a secondary chamber. A first piston is installed in the main chamber, a first gas pipe is connected to the main chamber, and a natural gas pipe is connected to the secondary chamber.

[0011] Furthermore, there are at least two auxiliary chambers located at both ends of the main chamber, and a second piston is installed in the inner cavity of the auxiliary chamber, with the first piston and the second piston connected by a rod.

[0012] Furthermore, both chambers are connected to the natural gas pipeline, and one-way valves are installed on both sides of the connection between the natural gas pipeline and each chamber.

[0013] Furthermore, the first trachea includes a first intake pipe, a second intake pipe, a first exhaust pipe, a second exhaust pipe, and an intake branch pipe;

[0014] One end of the intake manifold is connected to the air compressor, and the other end is connected to both the first intake manifold and the second exhaust manifold. Pilot valves are connected to the first intake manifold, the second intake manifold, the first exhaust manifold, and the second exhaust manifold.

[0015] The first intake pipe and the first exhaust pipe are connected to one end of the main chamber, and the second intake pipe and the second exhaust pipe are connected to the other end of the main chamber.

[0016] Furthermore, the second piston includes a first base layer, a second base layer, and a third base layer connected in sequence, with the rod body connected to the first base layer.

[0017] Furthermore, the first and third base layers are provided with a first cavity, and the second base layer is provided with a second cavity, both of which are filled with liquid.

[0018] Furthermore, the liquid is an incompressible flexible solid medium, and the outer walls of the first and third base layers are provided with concave V-shaped grooves.

[0019] Furthermore, a pressure gauge, an unloading valve, and a shut-off valve are connected sequentially to the second air pipe.

[0020] Furthermore, a pressure regulating valve is connected to the third air pipe.

[0021] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, by using compressed air provided by the air compressor as a power source to drive the piston movement in the gas booster pump, the components that may generate electric sparks are completely isolated from natural gas, fundamentally eliminating the risk of combustion and explosion. At the same time, the gas storage tank can effectively smooth the pulsation of the booster pump output pressure and provide sufficient high-pressure gas reserves for the peak demand of instantaneous combustion of the deburring machine.

[0022] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0023] Figure 1 This is a schematic diagram illustrating the principle of Embodiment 1 of the present invention.

[0024] Figure 2 This is Embodiment 1 of the present invention. Figure 2 Enlarged view of point A.

[0025] Figure 3 This is Embodiment 1 of the present invention.

[0026] Explanation of reference numerals in the attached diagram:

[0027] Gas booster pump 10, pump body 11, main chamber 111, auxiliary chamber 112, rod 113, one-way valve 114, piston 12, first piston 121, second piston 122, first base layer 1221, second base layer 1222, third base layer 1223, first cavity 1224, second cavity 1225, V-groove 1226;

[0028] Natural gas pipeline 20;

[0029] Air compressor 30, first air pipe 301, first air inlet pipe 3011, second air inlet pipe 3012, first exhaust pipe 3013, second exhaust pipe 3014, air inlet branch pipe 3015, pilot valve 3016;

[0030] Gas storage tank 40, second gas pipe 41, third gas pipe 42, pressure gauge 43, unloading valve 44, shut-off valve 45, pressure regulating valve 46. Detailed Implementation

[0031] Please refer to Figure 1-3 As shown, it illustrates the specific structure of a preferred first embodiment of the present invention, which is a natural gas circulating pressurization device for a thermal deburring machine, the circulating pressurization device comprising;

[0032] The gas booster pump 10 includes a pump body 11 and a piston 12 movably disposed in the inner cavity of the pump body 11. The pump body 11 has an air inlet and an air outlet at both ends, respectively.

[0033] Natural gas pipe 20, one end of natural gas pipe 20 is connected to natural gas pipeline, and the other end is connected to gas inlet;

[0034] Air compressor 30, the air outlet of air compressor 30 is connected to a first air pipe 301, and the first air pipe 301 is connected to the pump body 11;

[0035] The gas storage tank 40 is connected to a second gas pipe 41 at one end and a third gas pipe 42 at the other end. One end of the second gas pipe 41 is connected to the inner cavity of the pump body 11, and one end of the third gas pipe 42 is connected to the deburring machine. Compressed air is provided by the air compressor 30 as a power source to drive the piston 12 in the gas booster pump 10, which completely isolates the components that may generate electric sparks from natural gas, fundamentally eliminating the risk of combustion and explosion. At the same time, the gas storage tank 40 can effectively smooth the pulsation of the booster pump output pressure and provide sufficient high-pressure gas reserves for the peak demand of instantaneous combustion in the deburring machine.

[0036] For example, the pump body 11 includes a main chamber 111 and a secondary chamber 112. A first piston 121 is provided in the main chamber 111, a first gas pipe 301 is connected to the main chamber 111, and a natural gas pipe 20 is connected to the secondary chamber 112. By separating the main chamber 111 (drive chamber) and the secondary chamber 112 (gas chamber), the compressed air from the air compressor 30 only acts in the main chamber 111, and is physically isolated from the natural gas flowing in the secondary chamber 112 by the piston. This isolates all electrical components and any potential sparks from the gas system, eliminating the possibility of igniting or exploding the natural gas at the source.

[0037] For example, there are at least two auxiliary chambers 112 located at both ends of the main chamber 111. Each auxiliary chamber 112 contains a second piston 122, and the first piston 121 and the second piston 122 are connected by a rod 113. The two auxiliary chambers 112 are arranged at both ends of the main chamber 111, and the first piston 121 and the two second pistons 122 are rigidly connected by the rod 113, forming a linked piston assembly. When compressed air drives the first piston 121 to move to one end, the second piston 122 at one end compresses and exhausts the natural gas, while the second piston 122 at the other end simultaneously performs an intake stroke. This cycle repeats, allowing the two auxiliary chambers 112 to alternately perform intake and compression.

[0038] For example, both auxiliary chambers 112 are connected to the natural gas pipeline 20, and one-way valves 114 are provided on both sides of the connection between the natural gas pipeline 20 and each auxiliary chamber 112. The one-way valves 114 on both sides of each auxiliary chamber 112 are divided into an inlet one-way valve and an exhaust one-way valve. When the piston of the auxiliary chamber 112 retracts and draws in air, the internal pressure decreases, opening the inlet valve and closing the exhaust valve to complete the filling. When the piston moves forward and compresses, the internal pressure increases, opening the exhaust valve and tightly closing the inlet valve, forcing the high-pressure gas into the outlet pipeline.

[0039] For example, the first air pipe 301 includes a first air inlet pipe 3011, a second air inlet pipe 3012, a first exhaust pipe 3013, a second exhaust pipe 3014, and an air inlet branch pipe 3015;

[0040] One end of the intake manifold 3015 is connected to the air compressor 30, and the other end is connected to both the first intake manifold 3011 and the second exhaust manifold 3014. The first intake manifold 3011, the second intake manifold 3012, the first exhaust manifold 3013 and the second exhaust manifold 3014 are all connected to the pilot valve 3016.

[0041] The first intake pipe 3011 and the first exhaust pipe 3013 are connected to one end of the main chamber 111, and the second intake pipe 3012 and the second exhaust pipe 3014 are connected to the other end of the main chamber 111. When compressed air enters the left end of the main chamber from the first intake pipe 3011, and at the same time the second exhaust pipe 3014 empties the exhaust gas at the right end, the first piston 121 moves to the right. When the piston reaches the end point at the right end, it triggers a signal (usually a pneumatic or mechanical signal) to activate the pilot valve 3016, switching the air path. After the switch, the compressed air enters the right end of the main chamber from the second intake pipe 3012, and at the same time the first exhaust pipe 3013 empties the exhaust gas at the left end, and the first piston 121 moves to the left.

[0042] For example, the second piston 122 includes a first base layer 1221, a second base layer 1222, and a third base layer 1223 connected in sequence, with the rod 113 connected to the first base layer 1221. The first base layer 1221 is directly connected to the rod 113 and mainly bears and transmits the driving force from the main chamber. The second base layer 1222 is made of a flexible, wear-resistant sealing material (such as polyurethane or special rubber) and is in direct contact with the inner wall of the secondary chamber. The third base layer 1223 serves as a guide and support layer and is typically made of low-friction, wear-resistant engineering plastics or composite materials.

[0043] For example, the first base layer 1221 and the third base layer 1223 are provided with a first cavity 1224, and the second base layer 1222 is provided with a second cavity 1225. The first cavity 1224 and the second cavity 1225 are filled with liquid. When the piston compresses natural gas, the high pressure acts on the piston end face. The pressure is transmitted to the internal liquid through the flexible second base layer 1222 (sealing layer). Since the liquid is incompressible and the pressure transmission is isotropic, the liquid will instantly and evenly distribute the pressure to the entire inner wall of the first cavity 1224 and the second cavity 1225. This uniform internal pressure will force the second base layer 1222 (sealing layer) to expand outward uniformly and fit tightly against the inner wall of the cylinder. Even if the cylinder wall has slight out-of-roundness or wear, the piston can automatically adapt to its shape, realizing a dynamic seal with zero gap. Especially under high pressure ratio conditions, the sealing effect automatically increases with the increase of pressure, fundamentally eliminating the leakage of high-pressure gas.

[0044] For example, the liquid is an incompressible flexible solid medium, and the outer walls of the first base layer 1221 and the third base layer 1223 are provided with concave V-shaped grooves 1226. The V-shaped grooves 1226 create a structural "hinge" on the side walls of the first base layer 1221 and the third base layer 1223. When the piston compresses the natural gas and is subjected to the thrust from the rod 113 and the reaction force of the gas, this axial pressure will first cause the first base layer 1221 or the third base layer 1223 to undergo a slight radial contraction (compression) at the V-shaped grooves 1226. The contraction of the first base layer 1221 or the third base layer 1223 is equivalent to reducing the volume of its internal first cavity 1224. Since the internal "flexible solid medium" is incompressible, the squeezed-out volume is forced to flow into the second cavity 1225 in the second base layer 1222, causing the second base layer 1222 to expand to enhance the sealing effect.

[0045] A pressure gauge 43, an unloading valve 44, and a shut-off valve 45 are connected sequentially to the second air pipe 41.

[0046] A pressure regulating valve 46 is connected to the third air pipe 42.

[0047] In summary, the key design focus of this invention is;

[0048] Turn on the air compressor 30 and the natural gas pipeline, and confirm that the unloading valve 44 and the shut-off valve 45 are in the closed state. Adjust the pressure regulating valve 46 to the target output pressure.

[0049] The compressed air generated by the air compressor is controlled by the pilot valve 3016 to alternately enter both ends of the main chamber 111, driving the linkage piston assembly to reciprocate. When the piston moves, one side of the auxiliary chamber draws in natural gas and compresses it, while the other side draws in air synchronously, forming a continuous pressurized airflow. High-pressure natural gas is input into the gas storage tank 40 through the second gas pipe 41;

[0050] The pressure in the gas storage tank is monitored in real time via pressure gauge 43. If the pressure is too high, the unloading valve 44 can be opened to release the pressure, and the shut-off valve 45 is used to cut off the gas path in case of emergency or during maintenance.

[0051] High-pressure natural gas in the storage tank is transported to the deburring machine via the third gas pipe 42. The pressure regulating valve 46 ensures stable outlet pressure to meet the instantaneous peak demand of the equipment.

[0052] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A natural gas circulation supercharging device for a thermal deburring machine, characterized by: The circulating booster device includes; The gas booster pump (10) includes a pump body (11) and a piston (12) movably disposed in the inner cavity of the pump body (11). The pump body (11) is provided with an air inlet and an air outlet at both ends. Natural gas pipe (20), one end of natural gas pipe (20) is connected to natural gas pipeline, and the other end is connected to gas inlet; An air compressor (30) is provided with a first air pipe (301) connected to its outlet end, and the first air pipe (301) is connected to the pump body (11). The gas storage tank (40) is connected to a second air pipe (41) at one end and to a third air pipe (42) at the other end. The second air pipe (41) is connected to the inner cavity of the pump body (11) at one end, and the third air pipe (42) is connected to the deburring machine at one end.

2. The natural gas cycle supercharging device of a thermal energy deburring machine according to claim 1, characterized in that: The pump body (11) includes a main chamber (111) and a secondary chamber (112). The main chamber (111) is provided with a first piston (121). The first gas pipe (301) is connected to the main chamber (111), and the natural gas pipe (20) is connected to the secondary chamber (112).

3. The natural gas cycle supercharging device of a thermal energy deburring machine according to claim 2, characterized in that: There are at least two auxiliary chambers (112) and they are located at both ends of the main chamber (111). The inner cavity of the auxiliary chamber (112) is provided with a second piston (122), and the first piston (121) and the second piston (122) are connected by a rod (113).

4. The natural gas cycle supercharging device of a thermal energy deburring machine according to claim 3, characterized in that: Both of the sub-chambers (112) are connected to the natural gas pipe (20), and one-way valves (114) are provided on both sides of the connection between the natural gas pipe (20) and each sub-chamber (112).

5. The natural gas cycle supercharging device of a thermal energy deburring machine according to claim 2, characterized in that: The first air pipe (301) includes a first air inlet pipe (3011), a second air inlet pipe (3012), a first exhaust pipe (3013), a second exhaust pipe (3014), and an air inlet branch pipe (3015); one end of the air inlet branch pipe (3015) is connected to the air compressor (30), and the other end is connected to both the first air inlet pipe (3011) and the second exhaust pipe (3014), wherein the first air inlet pipe (3011), the second air inlet pipe (3012), the first exhaust pipe (3013), and the second exhaust pipe (3014) are all connected to a pilot valve (3016); The first intake pipe (3011) and the first exhaust pipe (3013) are connected to one end of the main chamber (111), and the second intake pipe (3012) and the second exhaust pipe (3014) are connected to the other end of the main chamber (111).

6. A natural gas cycle supercharging device for a thermal deburring machine according to claim 3, characterized in that: The second piston (122) includes a first base layer (1221), a second base layer (1222) and a third base layer (1223) connected in sequence, and the rod (113) is connected to the first base layer (1221).

7. A natural gas circulation booster device for a thermal deburring machine according to claim 1 or 2, characterized in that: The first base layer (1221) and the third base layer (1223) are provided with a first cavity (1224), and the second base layer (1222) is provided with a second cavity (1225). The first cavity (1224) and the second cavity (1225) are filled with liquid.

8. The natural gas circulation booster device for a thermal deburring machine according to claim 7, characterized in that: The liquid is an incompressible flexible solid medium, and the outer walls of the first base layer (1221) and the third base layer (1223) are provided with concave V-shaped grooves (1226).

9. The natural gas circulation booster device for a thermal deburring machine according to claim 3, characterized in that: A pressure gauge (43), an unloading valve (44), and a shut-off valve (45) are connected sequentially to the second air pipe (41).

10. The natural gas circulation booster device for a thermal deburring machine according to claim 9, characterized in that: A pressure regulating valve (46) is connected to the third air pipe (42).

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