Marine nitrogen making equipment

Abstract

The utility model discloses marine nitrogen making equipment, which relates to the technical field of nitrogen making machines and comprises a fixing cover, two compression cavities and an adsorption cavity are arranged in the fixing cover, and the adsorption cavity is arranged between the two compression cavities. The fixed cover is arranged, the compression cavity and the adsorption cavity are formed in the fixed cover, the piston is arranged in the compression cavity, the fixed net cover is arranged in the adsorption cavity, the carbon molecular sieve is arranged in the fixed net cover, and the piston moves in the fixed cover so that air can be compressed and conveyed; air can pass through the carbon molecular sieve after entering the adsorption cavity, oxygen and impurities in the air are adsorbed so as to prepare nitrogen, air compression and adsorption treatment are integrated in the fixing cover, the occupied volume of the device is effectively reduced, the device is not prone to being affected by shaking of a ship, and the device can be more conveniently applied to the field of ships.

Description

Technical Field

[0001] The utility model relates to the technical field of nitrogen generators, in particular to marine nitrogen generator equipment. Background Art

[0002] With the rapid development of the economy, due to the characteristics of nitrogen itself, it is more widely used in the fields of inert protection of flammable and explosive materials, anti-oxidation of special materials, nitrogen filling and oxygen removal of storage tanks and containers, fine chemicals, petrochemicals, etc. In the shipping industry, nitrogen occupies a major position as a gas explosion-proof system. Domestic and foreign emission standards are increasingly stringent, and natural gas and petroleum gas have become the best clean and available fuels at present. The demand has increased sharply, which has greatly increased the liquefied gas transportation business. LNG / LPG transport ships or ships using LNG / LPG as engine fuel need to be equipped with marine nitrogen production equipment. Nitrogen is used as a protective gas for pipeline replacement before and after LNG / LPG loading.

[0003] A nitrogen making device with publication number CN217350769U comprises: a base and a box body arranged on the base; the box body is provided with: a nitrogen making device for converting compressed air into nitrogen; a compression device for generating compressed air; a filtering device for filtering the compressed air; a gas storage device for receiving compressed air and nitrogen converted by the nitrogen making device; the nitrogen making device, the compression device, the filtering device and the gas storage device are arranged on the same base, the compression device and the gas storage device are arranged on both sides of the nitrogen making device, the filtering device is arranged on the rear side of the nitrogen making device, and the compression device and the gas storage device are connected by a pipeline. The utility model has a compact structure and a small footprint, can improve the space utilization rate of the equipment, and meet the user's requirements for arranging electrical connections for production on site.

[0004] The above technical solution is relatively large in actual application and is affected by the movement and swing of the ship, so it is not convenient to apply it to the ship field.

[0005] Therefore, it is necessary to invent a marine nitrogen making equipment to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a marine nitrogen production device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a marine nitrogen making equipment, comprising a fixed cover, wherein two compression chambers and an adsorption chamber are provided inside the fixed cover, and the adsorption chamber is arranged between the two compression chambers, an end plate is fixedly arranged at one end of the fixed cover, a connecting pipe is fixedly arranged at the outer side of the end plate, and the two ends of the connecting pipe extend to the interior of the two compression chambers respectively, an air intake pipe is fixedly arranged at the middle part of the connecting pipe, and one end of the air intake pipe extends to the interior of the adsorption chamber, a fixed seat is fixedly arranged at the other end of the fixed cover, a fixed mesh cover is fixedly arranged at the inner middle part of the fixed seat, and a carbon molecular sieve is arranged inside the fixed mesh cover, the fixed mesh cover is arranged inside the adsorption chamber, and a fixed block with a hemispherical structure is fixedly arranged at one end of the fixed mesh cover, two plug rods are penetrated through the outer side of the fixed seat, and the two plug rods are respectively disposed in the interiors of the two compression chambers, a piston is fixedly arranged at one end of the plug rod, and a plurality of one-way valves are penetrated through the outer side wall of the piston.

[0008] Preferably, a plurality of air holes are provided through the outer wall of the fixing seat, and the plurality of air holes correspond to the two compression chambers respectively.

[0009] Preferably, a connecting seat is fixedly provided at one end of the insertion rod, a curved arm is movably provided at the outer side of the connecting seat via a pin, and a movable arm is movably provided at one end of the curved arm via a pin.

[0010] Preferably, a transmission shaft is fixedly provided at one end of the outer side wall of the movable arm, and a driving wheel is fixedly provided at one end of the transmission shaft.

[0011] Preferably, a hood is provided between the two driving wheels, and the hood is fixedly provided on the outer side of the fixing seat, and the transmission shaft is provided through the outer side wall of the hood via a bearing.

[0012] Preferably, an air outlet pipe is fixedly provided at the middle part of the outer side of the fixing seat, and the air outlet pipe corresponds to the fixed mesh cover, and a plurality of heat dissipation fins are fixedly provided on the outer side wall of the fixed cover.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model is provided with a fixed cover, a compression chamber and an adsorption chamber are provided inside the fixed cover, a piston is provided inside the compression chamber, a fixed mesh cover is provided inside the adsorption chamber, and a carbon molecular sieve is provided inside the fixed mesh cover. The piston moves in the fixed cover to realize the compressed delivery of air, and the air can pass through the carbon molecular sieve after entering the adsorption chamber, and oxygen and impurities in the air are adsorbed to realize the preparation of nitrogen. By integrating air compression and adsorption processing in the fixed cover, the volume occupied by the device is effectively reduced, and it is not easily affected by the shaking of the ship, which is more convenient to be applied in the field of ships;

[0015] 2. The utility model arranges a machine cover at one end of the fixed cover, and the interior of the machine cover is provided with structures such as a crank arm, a movable arm, and a connecting seat. The crank arm, the movable arm, the connecting seat and other structures can realize the driving of the plug rod and the piston, thereby realizing the input of power to the device. By integrating the machine cover at one end of the fixed cover, the installation and application of the device on the ship is facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the fixing seat structure of the utility model.

[0018] Figure 3 It is a top-sectional schematic diagram of the fixed cover structure of the utility model.

[0019] In the figure: 1. fixed cover; 2. compression chamber; 3. adsorption chamber; 4. end plate; 5. connecting pipe; 6. air inlet pipe; 7. fixed seat; 8. fixed mesh cover; 9. fixed block; 10. plug rod; 11. piston; 12. one-way valve; 13. air hole; 14. connecting seat; 15. crank arm; 16. movable arm; 17. transmission shaft; 18. driving wheel; 19. hood; 20. air outlet pipe; 21. cooling fins. DETAILED DESCRIPTION

[0020] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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.

[0021] The utility model provides Figure 1-3 A marine nitrogen generating device shown in the figure comprises a fixed cover 1, wherein two compression chambers 2 and an adsorption chamber 3 are provided inside the fixed cover 1, and the adsorption chamber 3 is arranged between the two compression chambers 2, an end plate 4 is fixedly arranged at one end of the fixed cover 1, a connecting pipe 5 is fixedly arranged at the outer side of the end plate 4, and both ends of the connecting pipe 5 extend to the inside of the two compression chambers 2 respectively, an air intake pipe 6 is fixedly arranged at the middle part of the connecting pipe 5, and one end of the air intake pipe 6 extends to the inside of the adsorption chamber 3;

[0022] Specifically, a fixed seat 7 is fixedly provided at the other end of the fixed cover 1, a fixed mesh cover 8 is fixedly provided at the inner middle part of the fixed seat 7, and a carbon molecular sieve is provided inside the fixed mesh cover 8, the fixed mesh cover 8 is arranged inside the adsorption chamber 3, and a fixed block 9 with a hemispherical structure is fixedly provided at one end of the fixed mesh cover 8, two plug rods 10 are penetrated through the outer side of the fixed seat 7, and the two plug rods 10 are respectively arranged inside the two compression chambers 2, a piston 11 is fixedly provided at one end of the plug rod 10, and a plurality of one-way valves 12 are penetrated through the outer wall of the piston 11, when the piston 11 moves outward, the one-way valve 12 can be opened to realize the extraction of air, and when the piston 11 moves inward, the one-way valve 12 is closed, and the air in the compression chamber 2 is compressed;

[0023] More specifically, a plurality of air holes 13 are provided through the outer wall of the fixing seat 7, and the plurality of air holes 13 correspond to the two compression chambers 2 respectively. The provision of the air holes 13 facilitates the entry of external air into the compression chamber 2.

[0024] In addition, a connecting seat 14 is fixedly provided at one end of the plug rod 10, a crank arm 15 is movably provided on the outer side of the connecting seat 14 through a pin shaft, a movable arm 16 is movably provided on one end of the crank arm 15 through a pin shaft, a transmission shaft 17 is fixedly provided on one end of the outer wall of the movable arm 16, a driving wheel 18 is fixedly provided on one end of the transmission shaft 17, a hood 19 is provided between the two driving wheels 18, and the hood 19 is fixedly provided on the outer side of the fixed seat 7, the transmission shaft 17 is penetrated through the outer wall of the hood 19 through a bearing, and lubricating oil can be injected into the interior of the hood 19 to ensure the stability of the driving process;

[0025] Moreover, an air outlet pipe 20 is fixedly arranged in the middle part of the outer side of the fixed seat 7, and the air outlet pipe 20 corresponds to the fixed mesh cover 8. A plurality of heat dissipation fins 21 are fixedly arranged on the outer wall of the fixed cover 1. The arrangement of the heat dissipation fins 21 facilitates the heat dissipation of the fixed cover 1 during the compression process of the air.

[0026] Working principle of this utility model:

[0027] When the device is in use, the driving wheel 18 is connected to a driving mechanism such as a driving motor to rotate the driving wheel 18, and the driving wheel 18 drives the movable arm 16 to rotate through the transmission shaft 17, and the movable arm 16 drives the connecting seat 14 and the insertion rod 10 to move through the curved arm 15, so that the insertion rod 10 reciprocates in the compression chamber 2, and the insertion rod 10 drives the piston 11 to move, so that the piston 11 reciprocates in the compression chamber 2. During this process, the one-way valve 12 on the piston 11 is intermittently opened to realize the extraction of external air. The extracted air is compressed in the compression chamber 2 and then passes through the connecting pipe 5 and the air inlet pipe 6 to enter the adsorption chamber 3. Then, the air passes through the carbon molecular sieve in the fixed mesh cover 8 under pressure, so that oxygen and impurities in the air are adsorbed, and the remaining nitrogen can be discharged through the outlet pipe 20, so that the preparation of nitrogen can be realized.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A marine nitrogen generating device, comprising a fixed cover (1), characterized in that: The fixed cover (1) has two compression chambers (2) and an adsorption chamber (3) formed therein, and the adsorption chamber (3) is arranged between the two compression chambers (2). An end plate (4) is fixedly arranged at one end of the fixed cover (1), a connecting pipe (5) is fixedly arranged on the outer side of the end plate (4), and both ends of the connecting pipe (5) extend to the inside of the two compression chambers (2), an air intake pipe (6) is fixedly arranged in the middle of the connecting pipe (5), and one end of the air intake pipe (6) extends to the inside of the adsorption chamber (3), and a fixing seat (7) is fixedly arranged at the other end of the fixed cover (1). A fixed mesh cover (8) is fixedly arranged in the middle of the inner side of the fixed seat (7), and a carbon molecular sieve is arranged inside the fixed mesh cover (8). The fixed mesh cover (8) is arranged inside the adsorption chamber (3), and a fixed block (9) with a hemispherical structure is fixedly arranged at one end of the fixed mesh cover (8). Two insertion rods (10) are arranged through the outer side of the fixed seat (7), and the two insertion rods (10) are respectively arranged inside the two compression chambers (2). A piston (11) is fixedly arranged at one end of the insertion rod (10), and a plurality of one-way valves (12) are arranged through the outer wall of the piston (11).

2. A marine nitrogen generating equipment according to claim 1, characterized in that: The outer wall of the fixing seat (7) is penetrated by a plurality of air holes (13), and the plurality of air holes (13) respectively correspond to the two compression chambers (2).

3. A marine nitrogen production equipment according to claim 2, characterized in that: A connecting seat (14) is fixedly provided at one end of the insertion rod (10), a curved arm (15) is movably provided on the outer side of the connecting seat (14) via a pin shaft, and a movable arm (16) is movably provided at one end of the curved arm (15) via a pin shaft.

4. A marine nitrogen production equipment according to claim 3, characterized in that: A transmission shaft (17) is fixedly disposed on one end of the outer side wall of the movable arm (16), and a driving wheel (18) is fixedly disposed on one end of the transmission shaft (17).

5. A marine nitrogen production equipment according to claim 4, characterized in that: A hood (19) is arranged between the two driving wheels (18), and the hood (19) is fixedly arranged on the outside of the fixing seat (7), and the transmission shaft (17) is arranged to penetrate the outer wall of the hood (19) through a bearing.

6. A marine nitrogen production equipment according to claim 5, characterized in that: An air outlet pipe (20) is fixedly arranged at the middle part of the outer side of the fixing seat (7), and the air outlet pipe (20) corresponds to the fixed mesh cover (8), and a plurality of heat dissipation fins (21) are fixedly arranged on the outer side wall of the fixed cover (1).

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