Large-displacement combined type high-pressure nitrogen supercharger

Abstract

The utility model discloses a large-displacement combined type high-pressure nitrogen supercharger which comprises a machine frame and a low-pressure nitrogen storage tank installed at the bottom of the machine frame, and a first V-shaped piston air compressor and a second V-shaped piston air compressor are installed on the two sides of the top end of the machine frame respectively. The air outlet end of the first V-shaped piston air compressor is connected with the air inlet end of the second V-shaped piston air compressor. According to the utility model, the two V-shaped piston air compressors are connected in series for pressurization, so that higher final pressure is realized, the requirements of special industrial processes, laboratory research or other use occasions needing extremely high gas pressure are met, and the system can meet wider pressure requirements; and meanwhile, the V-shaped piston air compressor I and the V-shaped piston air compressor II are connected in series, and compression is performed in stages, so that a relatively small compression ratio can be realized in each stage, and the power and energy required by each compressor are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air superchargers, in particular to a large-displacement combined high-pressure nitrogen supercharger. Background Art

[0002] High-pressure V-type piston supercharger is a kind of equipment widely used in the industrial field. Its main function is to effectively compress gases such as nitrogen to the required high-pressure level to meet production requirements. This type of supercharger adopts a V-shaped structure, with two pistons arranged in a V shape. The reciprocating motion of the piston is driven by the crankshaft. The valve that controls the flow direction of the gas ensures that the gas is accurately guided during the compression process. At the same time, the cooling system effectively handles the heat generated by gas compression to ensure long-term stable operation of the equipment. This structure is designed to improve efficiency, reduce vibration, and make it more stable under high-pressure conditions. However, the current supercharger is generally a single direct-gas supply structure during use. Due to the design limitations of components such as pistons, cylinders, and valves, it is difficult to achieve higher pressure compression in a single supercharger equipment. The demand for high-pressure nitrogen in some process projects may exceed that of ordinary industrial applications. This type of direct-gas piston supercharger will directly limit the choice of process technology. Utility Model Content

[0003] The purpose of the utility model is to provide a large-displacement combined high-pressure nitrogen booster, which allows two V-type piston air compressors to be used in series so that the nitrogen can be compressed and boosted twice to reach a higher pressure, so as to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a large-displacement combined high-pressure nitrogen booster, comprising a frame and a low-pressure nitrogen gas storage tank installed at the bottom of the frame, V-type piston air compressor 1 and V-type piston air compressor 2 are respectively installed on both sides of the top of the frame, the air outlet end of the V-type piston air compressor 1 is connected to the air inlet end of the V-type piston air compressor 2, a turbine pump for pumping the low-pressure nitrogen in the low-pressure nitrogen gas storage tank to the inside of the V-type piston air compressor 1 is installed on the outer wall of one side of the frame, a guide pipe for interconnecting with the air inlet end of the V-type piston air compressor 1 is installed at the air outlet end of the turbine pump, an exhaust main pipe is installed at the air inlet end of the turbine pump, and a double-tube collecting outlet structure for interconnecting with one end of the exhaust main pipe is installed at the air outlet end of the low-pressure nitrogen gas storage tank.

[0005] Preferably, the V-type piston air compressor comprises a main first-stage compression cylinder and a main second-stage compression cylinder installed at the top of the frame, the air inlet of the main first-stage compression cylinder is installed with a second filter, and the air inlet end of the second filter and one end of the guide pipe are connected to each other.

[0006] Preferably, the V-type piston air compressor 2 comprises a secondary primary compression cylinder and a secondary secondary compression cylinder installed on the top of the frame, the air inlet end of the secondary primary compression cylinder and the air outlet end of the main secondary compression cylinder are connected to each other through a U-shaped tube, and gas pipes for conducting gas to each other are installed between the main primary compression cylinder, the main secondary compression cylinder, the secondary primary compression cylinder and the secondary secondary compression cylinder.

[0007] Preferably, the double-tube collecting type exhaust structure includes two exhaust branch pipes installed on the outer wall of one side of the low-pressure nitrogen gas storage tank, and a right-angle elbow is installed at the top of the two exhaust branch pipes, and one end of the right-angle elbow is interconnected with one end of the exhaust main pipe.

[0008] Preferably, an air intake filter tube group is installed on the outer wall of the low-pressure nitrogen gas storage tank below the double-tube collecting type air outlet structure.

[0009] Preferably, the air intake filter pipe group includes two one-way valves installed on the outer wall of one side of the low-pressure nitrogen storage tank, an F-type air guide pipe is installed at one end of the two one-way valves away from the outer wall of the low-pressure nitrogen storage tank, a second switch valve is installed between the connection point of the F-type air guide pipe and the one-way valve, a right-angle pipe is installed at the top end of the F-type air guide pipe, a first switch valve is installed at the top end of the right-angle pipe, and an air intake filter is installed at one end of the first switch valve away from the right-angle pipe.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the large-displacement combined high-pressure nitrogen booster is provided with a structure that cooperates with each other, such as a V-type piston air compressor 1 and a low-pressure nitrogen gas storage tank. When the V-type piston air compressor 1 pressurizes the low-pressure nitrogen, the pressurized nitrogen gas is transported to the V-type piston air compressor 2, and then the two cylinders of the V-type piston air compressor 2 perform secondary pressurization, thereby achieving a higher final pressure, so as to meet the needs of special industrial processes, laboratory research or other occasions requiring extremely high gas pressure, ensuring that the system can meet a wider range of pressure requirements. At the same time, the series and staged compression of the V-type piston air compressor 1 and the V-type piston air compressor 2 can achieve a smaller compression ratio in each stage, thereby reducing the power and energy required for each compressor, that is, evenly sharing the workload of the two compressors, and extending the service life of each compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0012] Figure 2 It is a side view structural schematic diagram of the utility model;

[0013] Figure 3 This is a schematic diagram of the three-dimensional structure of the air intake filter tube group of the utility model;

[0014] In the figure: 1. frame; 2. low-pressure nitrogen gas storage tank; 3. double-tube collecting type gas outlet structure; 301. exhaust branch pipe; 302. right-angle elbow pipe; 4. exhaust main pipe; 5. turbo pump; 501. guide pipe; 6. intake filter pipe group; 601. one-way valve; 602. second switch valve; 603. F-type air guide pipe; 604. right-angle pipe; 605. first switch valve; 606. intake filter; 7. V-type piston air compressor 1; 701. main first-stage compression cylinder; 702. main second-stage compression cylinder; 8. V-type piston air compressor 2; 801. auxiliary first-stage compression cylinder; 802. auxiliary second-stage compression cylinder; 9. second filter; 10. gas transmission pipe. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1-3 The utility model provides an embodiment: a large-displacement combined high-pressure nitrogen booster, comprising a frame 1 and a low-pressure nitrogen gas storage tank 2 installed at the bottom of the frame 1, a V-type piston air compressor 1 7 and a V-type piston air compressor 2 8 are installed on both sides of the top of the frame 1, the outlet end of the V-type piston air compressor 1 7 and the inlet end of the V-type piston air compressor 2 8 are connected to each other, and a turbine pump 5 for pumping the low-pressure nitrogen in the low-pressure nitrogen gas storage tank 2 to the inside of the V-type piston air compressor 1 7 is installed on the outer wall of one side of the frame 1 The outlet end of the turbine pump 5 is equipped with a guide pipe 501 for interconnecting with the inlet end of the V-type piston air compressor 7, the inlet end of the turbine pump 5 is equipped with an exhaust pipe 4, and the outlet end of the low-pressure nitrogen gas storage tank 2 is equipped with a double-tube collecting type outlet structure 3 for interconnecting with one end of the exhaust pipe 4. The turbine pump 5 delivers the low-pressure nitrogen inside the low-pressure nitrogen gas storage tank 2 into the guide pipe 501 through the double-tube collecting type outlet structure 3 and the exhaust pipe 4, so that the low-pressure nitrogen enters the two piston cylinders of the V-type piston air compressor 7;

[0017] Two V-type piston air compressors are used in series, so that the nitrogen is compressed and boosted twice to reach a higher pressure;

[0018] The V-type piston air compressor 28 comprises a secondary primary compression cylinder 801 and a secondary secondary compression cylinder 802 installed at the top of the frame 1, the air inlet end of the secondary primary compression cylinder 801 and the air outlet end of the main secondary compression cylinder 702 are connected to each other through a U-shaped pipe, and a gas transmission pipe 10 for mutual gas communication is installed between the main primary compression cylinder 701, the main secondary compression cylinder 702 and the secondary primary compression cylinder 801 and the secondary secondary compression cylinder 802;

[0019] When the nitrogen enters the primary compression cylinder 701, the secondary compression cylinder 702, the secondary compression cylinder 801, and the secondary compression cylinder 802 in sequence, the nitrogen is divided into four compression stages, and the nitrogen in each stage is pressurized once, so that it can easily reach a high pressure level exceeding the capacity of a single compressor;

[0020] The V-type piston air compressor 7 includes a main first-stage compression cylinder 701 and a main second-stage compression cylinder 702 installed at the top of the frame 1. The air inlet of the main first-stage compression cylinder 701 is installed with a second filter 9. The air inlet end of the second filter 9 and one end of the guide pipe 501 are connected to each other.

[0021] The double-tube collecting type gas outlet structure 3 includes two exhaust branch pipes 301 installed on the outer wall of one side of the low-pressure nitrogen gas storage tank 2, and the tops of the two exhaust branch pipes 301 are commonly installed with a right-angle elbow 302, and one end of the right-angle elbow 302 is mutually connected with one end of the exhaust main pipe 4. When the low-pressure nitrogen gas storage tank 2 is exhausted, the low-pressure nitrogen in the low-pressure nitrogen gas storage tank 2 enters the right-angle elbow 302 through the two exhaust branch pipes 301, and is centrally sent to the second filter 9 on the air inlet of the main first-stage compression cylinder 701 through the right-angle elbow 302, the turbine pump 5, and the guide pipe 501, so as to achieve the purpose of gas supply. The use of the double-tube collecting type gas outlet structure 3 can effectively reduce the pressure fluctuation of the gas;

[0022] An air intake filter tube group 6 is installed on the outer wall of the low-pressure nitrogen gas storage tank 2 below the double-tube collecting gas outlet structure 3. The air intake filter tube group 6 includes two one-way valves 601 installed on the outer wall of one side of the low-pressure nitrogen gas storage tank 2. An F-type air guide tube 603 is installed at one end of the two one-way valves 601 away from the outer wall of the low-pressure nitrogen gas storage tank 2. A second switch valve 602 is installed between the connection point of the F-type air guide tube 603 and the one-way valve 601. A right-angle tube 604 is installed at the top of the F-type air guide tube 603. The first switch valve 602 is installed at the top of the right-angle tube 604. 05, an air intake filter 606 is installed at one end of the first switch valve 605 away from the right-angle tube 604. When injecting low-pressure nitrogen into the low-pressure nitrogen storage tank 2, the staff opens the first switch valve 605 and the second switch valve 602 and connects the external nitrogen charging end to the air intake filter 606, and the low-pressure nitrogen passes through the air intake filter 606, the first switch valve 605, the right-angle tube 604, the F-type air guide pipe 603 and the one-way valve 601 in sequence to enter the low-pressure nitrogen storage tank 2, thereby achieving the purpose of air intake into the low-pressure nitrogen storage tank 2;

[0023] When one of the one-way valves 601 fails, the other pipeline can still continue to supply gas. During this process, the air intake filter 606 can prevent pollutants from entering the low-pressure nitrogen gas storage tank 2 and reduce the friction and wear inside the V-piston air compressor 1 7 and the V-piston air compressor 2 8.

[0024] When the embodiment of the present application is in use, first, the staff continuously pumps low-pressure nitrogen into the interior of the low-pressure nitrogen storage tank 2, and connects the exhaust end of the V-type piston air compressor 28 to another high-pressure nitrogen storage tank. Then, the staff turns on the turbo pump 5, the V-type piston air compressor 17 and the V-type piston air compressor 28 to work. The turbo pump 5 delivers the low-pressure nitrogen inside the low-pressure nitrogen storage tank 2 to the guide pipe 501 through the double-tube collecting gas outlet structure 3 and the exhaust main pipe 4, so that the low-pressure nitrogen enters the two piston cylinders of the V-type piston air compressor 17. The two pistons are driven by the crankshaft respectively to pressurize the gas through reciprocating motion. When the V-type piston air compressor 17 presses After the low-pressure nitrogen is pressurized, the pressurized nitrogen gas is transported to the V-type piston air compressor 28, and then the two cylinders of the V-type piston air compressor 28 perform secondary pressurization, thereby achieving a higher final pressure, so as to meet the needs of special industrial processes, laboratory research or other occasions requiring extremely high gas pressure, ensuring that the system can meet a wider range of pressure requirements. At the same time, the series and staged compression of the V-type piston air compressor 17 and the V-type piston air compressor 28 can achieve a smaller compression ratio in each stage, thereby reducing the power and energy required for each compressor, that is, evenly sharing the workload of the two compressors, extending the service life of each compressor and reducing the maintenance frequency.

Claims

1. Large displacement combined high pressure nitrogen booster, characterized by: The invention comprises a frame (1) and a low-pressure nitrogen gas storage tank (2) installed at the bottom of the frame (1); a V-type piston air compressor (7) and a V-type piston air compressor (8) are installed on both sides of the top of the frame (1); the outlet end of the V-type piston air compressor (7) is connected to the inlet end of the V-type piston air compressor (8); a turbine pump (5) for pumping the low-pressure nitrogen in the low-pressure nitrogen gas storage tank (2) into the inside of the V-type piston air compressor (7) is installed on the outer wall of one side of the frame (1); a guide pipe (501) for connecting to the inlet end of the V-type piston air compressor (7) is installed at the outlet end of the turbine pump (5); an exhaust pipe (4) is installed at the inlet end of the turbine pump (5); and a double-tube collecting outlet structure (3) for connecting to one end of the exhaust pipe (4) is installed at the outlet end of the low-pressure nitrogen gas storage tank (2).

2. The large-displacement combined high-pressure nitrogen booster according to claim 1, characterized in that: The V-type piston air compressor (7) comprises a main first-stage compression cylinder (701) and a main second-stage compression cylinder (702) installed at the top of a frame (1); a second filter (9) is installed at the air inlet of the main first-stage compression cylinder (701); and an air inlet end of the second filter (9) and one end of a guide pipe (501) are connected to each other.

3. The large-displacement combined high-pressure nitrogen booster according to claim 2, characterized in that: The V-type piston air compressor 2 (8) comprises a secondary primary compression cylinder (801) and a secondary secondary compression cylinder (802) mounted on the top of a frame (1); an air inlet end of the secondary primary compression cylinder (801) and an air outlet end of a main secondary compression cylinder (702) are connected to each other via a U-shaped pipe; and air delivery pipes (10) for mutually conducting gas are installed between the main primary compression cylinder (701), the main secondary compression cylinder (702) and the secondary primary compression cylinder (801) and the secondary secondary compression cylinder (802).

4. The large-displacement combined high-pressure nitrogen booster according to claim 1, characterized in that: The double-tube collecting type gas outlet structure (3) comprises two exhaust branch pipes (301) installed on the outer wall of one side of the low-pressure nitrogen gas storage tank (2), and a right-angle elbow (302) is commonly installed at the top end of the two exhaust branch pipes (301), and one end of the right-angle elbow (302) is interconnected with one end of the exhaust main pipe (4).

5. The large-displacement combined high-pressure nitrogen booster according to claim 1 is characterized in that: An air intake filter tube group (6) is installed on the outer wall of the low-pressure nitrogen gas storage tank (2) below the double-tube collecting type air outlet structure (3).

6. The large-displacement combined high-pressure nitrogen booster according to claim 5, characterized in that: The air intake filter tube group (6) comprises two one-way valves (601) installed on the outer wall of one side of the low-pressure nitrogen gas storage tank (2); an F-type air guide tube (603) is installed at one end of the two one-way valves (601) away from the outer wall of the low-pressure nitrogen gas storage tank (2); a second switch valve (602) is installed between the connection point of the F-type air guide tube (603) and the one-way valve (601); a right-angle tube (604) is installed at the top end of the F-type air guide tube (603); a first switch valve (605) is installed at the top end of the right-angle tube (604); and an air intake filter (606) is installed at one end of the first switch valve (605) away from the right-angle tube (604).

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