Efficient energy-saving variable-frequency refrigeration compressor unit for ship

Abstract

The invention relates to a compressor unit, in particular to an efficient energy-saving variable-frequency refrigeration compressor unit for a ship. The water removing device comprises a water removing assembly, the water removing assembly comprises a filtering bin, a first air feeding pipe is fixedly arranged on the upper side of the filtering bin, a drying assembly used for filtering water is arranged in the filtering bin, and a driving assembly is arranged on the lower side of the drying assembly. When a male screw rod rotates, a connecting rod and a first bevel gear are driven to rotate, and meanwhile, the first bevel gear drives a second bevel gear, a cross rod and a third bevel gear to rotate and drives a fourth bevel gear and a vertical rod to rotate; a vertical rod drives a filter plate to rotate and drives a plurality of guide plates I to stir gas in a filter bin upwards and filter the gas quickly, so that the gas mixed with a liquid medium is prevented from entering the compression bin to damage parts in the compression bin, and the stability of the device is improved.

Description

Technical Field

[0001] The present invention relates to a compressor unit, in particular to a high-efficiency and energy-saving variable-frequency refrigeration compressor unit for ships. Background Art

[0002] A high-efficiency and energy-saving variable-frequency refrigeration compressor unit is a device that uses variable-frequency technology to achieve high-efficiency and energy-saving refrigeration. It is widely used in commercial and industrial refrigeration scenarios. In the cold storage rooms of some large ships, high-efficiency and energy-saving variable-frequency refrigeration compressor units are usually installed to cool the interior of the cold storage room. A screw compressor unit is a type of refrigeration compressor unit. This type of compressor unit has the advantages of high efficiency and energy saving, strong adaptability, and high reliability. Therefore, this type of compressor unit is mostly used as refrigeration equipment on ships.

[0003] When a screw compressor is running, the screw rotor achieves gas compression by gradually reducing the volume between the teeth from the suction end to the exhaust end. It is a positive displacement compressor. The surface of the internal evaporator of the screw compressor unit is prone to frost after long-term use, resulting in incomplete evaporation of the refrigerant. The liquid refrigerant is sucked into the compressor along with the gas. When the liquid medium enters the compression chamber, the liquid is almost incompressible, causing the pressure in the compression chamber to rise sharply and exceed the equipment's tolerance limit, thereby causing damage to the internal parts of the compression chamber. In addition, the male and female screws inside the screw compressor will gradually wear out after long-term rotation, causing the gap between the male and female screws and the internal connection of the compressor to gradually increase, thereby causing liquid leakage inside the compressor. Although the internal parts of the existing compressor are made of special materials, the male and female screws will still wear out under long-term friction. In view of this, we propose a high-efficiency and energy-saving variable-frequency refrigeration compressor unit for ships. Summary of the Invention

[0004] The purpose of the present invention is to provide a high-efficiency and energy-saving variable frequency refrigeration compressor unit for ships to solve the problems raised in the above background technology: 1. When the liquid medium enters the compression chamber, the internal pressure of the compression chamber will rise sharply and cause damage to the internal parts of the compression chamber; 2. The yin and yang screws will gradually wear out after long-term use, causing the liquid inside the compressor to leak from the connection between the screw and the compressor.

[0005] To solve the above problems, the present invention provides a high-efficiency and energy-saving variable-frequency refrigeration compressor unit for ships, comprising a shell, a partition fixedly provided inside the shell, the partition dividing the interior of the shell into two layers, an air intake bin and a compression bin, a compression assembly provided inside the compression bin, the compression assembly being used to compress the gas delivered to the interior of the compression bin, a dewatering assembly provided on one side of the shell, the dewatering assembly being used to remove moisture from the gas inside the air intake bin, the dewatering assembly comprising a filter bin, a No. 1 air supply pipe fixedly provided on the upper side of the filter bin, the two ends of the No. 1 air supply pipe being respectively fixedly provided inside the filter bin and the air intake bin, a drying assembly for filtering moisture being provided inside the filter bin, and a driving assembly being provided on the lower side of the drying assembly.

[0006] The gas inside the air inlet bin enters the interior of the filter bin through the No. 1 air supply pipe, and then the drying component filters the gas inside the filter bin. At the same time, the driving component drives the drying component to rotate to speed up the filtering speed of the gas inside the filter bin and speed up the flow rate of the gas inside the filter bin.

[0007] As a further improvement of the present technical solution, the compression assembly includes a male screw, one side of which is meshedly connected with a female screw, and both the male screw and the female screw are rotatably arranged inside the compression chamber, and the male screw and the female screw compress the gas inside the compression chamber when they rotate.

[0008] When the male screw rotates, the female screw is driven to rotate. When the male screw and the female screw rotate, the volume between the two screws changes and the gas inside the compression chamber is compressed.

[0009] As a further improvement of the present technical solution, a pushing assembly is provided at one end of the male screw, and the pushing assembly is arranged inside the compression chamber. The pushing assembly includes a push plate, and the male screw and the female screw both rotate and are inserted in the middle of the push plate. A compression spring is fixedly arranged between the push plate and the inner wall of the shell. The rotating shafts of the male screw and the female screw near one end of the pushing assembly can be extended and retracted, and the side of the male screw and the female screw near the pushing assembly rotating shaft is symmetrically fixed with a No. 1 card block, and multiple No. 1 card blocks are respectively used to drive the male screw and the female screw to rotate.

[0010] When the push plate is pressed by the compression spring to move, the male screw and the female screw expand and contract with the push plate. When the rotating shaft of the male screw rotates, it drives the two No. 1 blocks to rotate, and at the same time, the two No. 1 blocks drive the male screw and the female screw to rotate.

[0011] As a further improvement of the present technical solution, a No. 1 motor is fixedly provided on one side of the shell, and the rotating shaft of the No. 1 motor is fixedly connected to the rotating shaft of the male screw. The male screw and the female screw are both provided with sealing rings at one end away from the No. 1 motor. The sealing rings are fixedly provided inside the compression chamber, and one end of the male screw and the female screw are respectively rotatably provided inside the two sealing rings.

[0012] When the No. 1 motor starts, it drives the male screw and the female screw to rotate. When the end of the male screw and the female screw close to the sealing ring is worn, the compression spring pushes the male screw and the female screw under the pressure of the push plate. Under the push of the push plate, one end of the male screw and the female screw is always located inside the two sealing rings and fits with the inside of the shell, preventing the liquid inside the shell from leaking from the gap between the male screw and the female screw and the inner wall of the shell.

[0013] As a further improvement of the present technical solution, the drying component includes a filter plate, which is rotatably arranged inside the filter bin, one end of the No. 1 air supply pipe is arranged inside the filter plate, the No. 1 air supply pipe is rotatably connected to the filter plate, and the end of the No. 1 air supply pipe located inside the filter plate is flat. A plurality of No. 1 guide plates are fixedly arranged inside the filter plate, and the No. 1 guide plates are spiral-shaped. The No. 1 guide plates are used to stir the gas inside the filter bin upward.

[0014] The gas inside the No. 1 air supply pipe flows to one end of the No. 1 air supply pipe, and the area through which it passes is reduced. The gas flowing out from the No. 1 air supply pipe is compressed at one end of the No. 1 air supply pipe and then accelerates to flow into the inside of the filter plate. When the filter plate rotates, it drives multiple No. 1 guide plates to rotate and stirs the gas inside the filter bin upward, thereby accelerating the flow speed of the gas inside the filter bin.

[0015] As a further improvement of the present technical solution, the drive assembly includes a connecting rod, which is rotatably arranged on one side of the shell, one end of the connecting rod is fixedly connected to one end of the male screw, and the connecting rod can be telescopic. A second clamping block is fixedly arranged on one side of the connecting rod symmetrically, and the No. 2 clamping block is used to drive the other end of the connecting rod to rotate when the connecting rod rotates close to one end of the male screw. A No. 1 bevel gear is fixedly arranged on the end of the connecting rod away from the male screw, and a No. 2 bevel gear is meshed with the No. 1 bevel gear. A No. 1 gear box for protecting the No. 1 bevel gear and the No. 2 bevel gear are both rotatably arranged inside the No. 1 gear box.

[0016] When the male screw rotates, it drives the connecting rod and the No. 2 block to rotate. When the male screw moves, it pushes the connecting rod. Under the push of the male screw, the connecting rod contracts. When the connecting rod rotates, it drives the No. 1 bevel gear to rotate. At the same time, the No. 1 bevel gear drives the No. 2 bevel gear to rotate. The No. 1 gear box is used to prevent the No. 1 bevel gear and the No. 2 bevel gear from absorbing too much dust or being damaged, which will cause the two to be unable to engage.

[0017] As a further improvement of the present technical solution, a cross bar is fixedly provided on one side of the No. 2 bevel gear, and the end of the cross bar away from the No. 2 bevel gear is arranged inside the filter bin, and a No. 3 bevel gear is fixedly provided on the end of the cross bar away from the No. 2 bevel gear, and the No. 4 bevel gear is meshed with the No. 3 bevel gear, and the No. 2 gear box for protecting the No. 3 and No. 4 bevel gears is fixedly provided inside the filter bin, and the No. 3 and No. 4 bevel gears are both rotatably arranged inside the No. 2 gear box, and a vertical rod is fixedly provided on the upper side of the No. 4 bevel gear, and the end of the vertical rod away from the No. 4 bevel gear is fixedly connected to the center position of the lower side of the filter plate, and the vertical rod is used to drive the filter plate to rotate.

[0018] The No. 2 bevel gear drives the horizontal rod to rotate when it rotates, and the horizontal rod drives the No. 3 bevel gear to rotate when it rotates. At the same time, the No. 3 bevel gear drives the No. 4 bevel gear to rotate. The No. 4 bevel gear drives the vertical rod to rotate when it rotates. At the same time, the vertical rod drives the filter plate to rotate. The filter plate throws off the liquid inside it when it rotates to prevent excessive liquid from adhering to the filter plate, which blocks its interior and reduces its filtering and drying speed for the gas inside the filter chamber.

[0019] Compared with the prior art, the present invention has the following beneficial effects: 1. In the high-efficiency and energy-saving variable frequency refrigeration compressor unit for ships, the male screw drives the connecting rod and the No. 1 bevel gear to rotate when rotating. At the same time, the No. 1 bevel gear drives the No. 2 bevel gear, the cross bar and the No. 3 bevel gear to rotate. The No. 3 bevel gear drives the No. 4 bevel gear and the vertical rod to rotate. The vertical rod drives the filter plate to rotate and throw off the unevaporated liquid refrigerant. At the same time, the filter plate drives multiple No. 1 guide plates to stir the gas inside the filter bin upward and filter it quickly, preventing the gas mixed with liquid medium from entering the compression bin and damaging the internal parts of the compression bin, thereby improving the stability of the device.

[0020] 2. In the high-efficiency and energy-saving variable-frequency refrigeration compressor unit for ships, the compression spring presses the push plate when the male and female screws rotate, and drives the push plate to press the male and female screws. Under the pressure of the push plate, the end of the male and female screws away from the push plate is always located inside the sealing ring and fits tightly with the inner wall of the shell, preventing leakage inside the compression chamber after the male and female screws are worn, thereby extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is one of the cross-sectional views of the shell structure of the present invention; Figure 3 This is the second cross-sectional view of the housing structure of the present invention; Figure 4 It is a schematic structural diagram of the compression assembly of the present invention; Figure 5 For the present invention Figure 4 A magnified view of the structure at center A; Figure 6 This is a schematic structural diagram of a water removal assembly according to the present invention; Figure 7 This is a schematic diagram of the structure of the drive assembly of the present invention; Figure 8 It is a cross-sectional view of the filter plate structure of the present invention; Figure 9 A top view of the water storage tank structure of the present invention; Figure 10 It is a schematic diagram of the structure of the filter assembly of the present invention.

[0022] The meaning of each number in the figure is: 1. Housing; 2. Partition; 3. Compression assembly; 31. Male screw; 32. Female screw; 33. Push assembly; 331. Push plate; 332. Compression spring; 34. Block No. 1; 35. Motor No. 1; 36. Sealing ring; 4. Water removal assembly; 41. Filter chamber; 42. No. 1 air supply pipe; 43. Drying assembly; 431. Filter plate; 432. No. 1 guide plate; 44. Drive assembly; 441. Connecting rod; 442. Block No. 2; 443. Bevel gear No. 1; 444. Bevel gear No. 2; 445. Crossbar; 446. Bevel gear No. 3; 447. Bevel gear No. 4; 448. Vertical rod; 45. Gearbox No. 1; 46. Gearbox No. 2; 47. Water storage assembly; 471. Water storage box; 472. Float valve; 48. Air supply pipe No. 2; 5. Intake pipe; 6. Exhaust pipe; 7. Filter assembly; 71. Filter screen; 72. No. 2 guide plate; 73. Block; 74. No. 2 motor. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. Example

[0025] See also Figure 2 and Figure 10 As shown, the purpose of this embodiment is to provide a high-efficiency and energy-saving variable-frequency refrigeration compressor unit for ships, including a shell 1, a partition 2 is fixedly arranged inside the shell 1, and the partition 2 divides the interior of the shell 1 into two layers, an air intake bin and a compression bin. When using the device, the user first connects the pipe for conveying the gaseous refrigerant to the air inlet on one side of the air intake bin, and then conveys the gaseous refrigerant into the air intake bin. A filter assembly 7 is provided inside the air intake bin, and the filter assembly 7 includes a filter screen 71. The filter screen 71 is rotatably arranged inside the air intake bin. The filter screen 71 is used to perform preliminary filtering on the gas inside the air intake bin. After entering the air intake bin, the gaseous refrigerant first enters the inside of the filter screen 71.

[0026] See also Figure 2 and Figure 10As shown, a plurality of No. 2 guide plates 72 are fixedly provided inside the filter 71, and the plurality of No. 2 guide plates 72 are evenly arranged inside the filter 71. The No. 2 guide plates 72 are used to stir the gas inside the air inlet bin. When the filter 71 rotates, it drives the plurality of No. 2 guide plates 72 to rotate and stir the gas inside the filter 71 to accelerate the flow rate of the gas inside the filter 71. A stopper 73 is fixedly provided at one end of the filter 71 near the air inlet, and the stopper 73 is used to prevent large debris from entering the air inlet bin. A No. 2 motor 74 is fixedly provided on one side of the shell 1 for driving the filter 71 to rotate. After the gaseous refrigerant is transported to the air inlet bin, the user starts the No. 2 motor 74 to drive the filter 71 to rotate and drive the plurality of No. 2 guide plates 72 to stir the gas inside the filter 71. Under the stirring of the plurality of No. 2 guide plates 72, the gas inside the filter 71 is quickly filtered by the filter 71 and flows to the outside of the filter 71.

[0027] See also Figure 1 and Figure 6 As shown, a dehydration component 4 is provided on one side of the shell 1, and the dehydration component 4 is used to remove moisture from the gas inside the air inlet bin. The dehydration component 4 includes a filter bin 41, and a No. 1 air supply pipe 42 is fixedly provided on the upper side of the filter bin 41. The two ends of the No. 1 air supply pipe 42 are respectively fixedly provided in the filter bin 41 and the inside of the air inlet bin. The gas preliminarily filtered in the air inlet bin enters the interior of the filter bin 41 through the No. 1 air supply pipe 42. The interior of the filter bin 41 is provided with a drying component 43 for filtering moisture. The drying component 43 includes a filter plate 431, and the filter plate 431 is rotatably provided in the interior of the filter bin 41. One end of the air supply pipe 42 is arranged inside the filter plate 431, and the No. 1 air supply pipe 42 is rotatably connected to the filter plate 431. The gas inside the No. 1 air supply pipe 42 first enters the inside of the filter plate 431 after flowing into the filter chamber 41. In order to speed up the flow speed of the gas inside the No. 1 air supply pipe 42, the end of the No. 1 air supply pipe 42 located inside the filter plate 431 is flat. After the gas inside the No. 1 air supply pipe 42 flows to one end of the No. 1 air supply pipe 42, the passing area is reduced. The gas flowing out from the No. 1 air supply pipe 42 is compressed by one end of the No. 1 air supply pipe 42 and then accelerated to flow to the inside of the filter plate 431.

[0028] See also Figures 1-9As shown, a water storage component 47 is provided on the lower side of the filter bin 41, and the water storage component 47 includes a water storage box 471, which is threadedly connected to the lower side of the filter bin 41, and the water storage box 471 is used to store moisture inside the filter bin 41. The gas flowing into the filter plate 431 is filtered and dried by the filter plate 431 and then flows to the upper side of the filter plate 431. The moisture in the gas inside the filter plate 431 gradually condenses and drips into the water storage box 471. A float valve 472 is fixedly provided inside the water storage box 471, and the ball of the float valve 472 gradually rises as the liquid inside the water storage box 471 gradually accumulates. When the ball of the float valve 472 rises to the highest point, the float valve 472 opens and discharges the liquid in the water storage box 471 to prevent backflow due to excessive accumulation of liquid in the water storage box 471.

[0029] See also Figures 1-6 As shown, a No. 2 air supply pipe 48 is fixedly provided on the upper side of the filter bin 41, and one end of the No. 2 air supply pipe 48 is fixedly provided inside the filter bin 41. The No. 2 air supply pipe 48 is used to transport the filtered gas inside the filter bin 41. The gas inside the filter plate 431 flows to the inside of the No. 2 air supply pipe 48 after being filtered. An air intake pipe 5 is fixedly provided on the side of the shell 1 close to the No. 2 air supply pipe 48, and one end of the No. 2 air supply pipe 48 away from the filter bin 41 is fixedly connected to the air intake pipe 5. An exhaust pipe 6 is fixedly provided on the side of the shell 1 away from the air intake pipe 5. One end of the air intake pipe 5 and the exhaust pipe 6 are both provided inside the compression bin, and the filtered and dried gas flows to the inside of the compression bin through the No. 2 air supply pipe 48 and the air intake pipe 5.

[0030] See also Figures 1-4 As shown, a compression assembly 3 is provided inside the compression chamber, and the compression assembly 3 is used to compress the gas delivered to the inside of the compression chamber. The compression assembly 3 includes a male screw 31, and a female screw 32 is meshedly connected to one side of the male screw 31. The male screw 31 and the female screw 32 are both rotatably arranged inside the compression chamber, and the male screw 31 and the female screw 32 compress the gas inside the compression chamber when rotating. A No. 1 motor 35 is fixedly provided on one side of the shell 1, and the rotating shaft of the No. 1 motor 35 is fixedly connected to the rotating shaft of the male screw 31. The user starts the No. 1 motor 35 to drive the male screw 31 to rotate, and at the same time, the male screw 31 drives the female screw 32 to rotate and compress the gas inside the compression chamber, and then the gas inside the compression chamber is discharged through the exhaust pipe 6. The user controls the rotating speed of the male screw 31 and the female screw 32 by adjusting the rotating speed of the No. 1 motor 35, thereby controlling the speed at which the male screw 31 and the female screw 32 compress the gas to achieve the purpose of frequency conversion.

[0031] See also Figure 1-Figure 7As shown, a driving assembly 44 is provided on the lower side of the drying assembly 43, and the driving assembly 44 includes a connecting rod 441, which is rotatably provided on one side of the housing 1, and one end of the connecting rod 441 is fixedly connected to one end of the male screw 31, and the connecting rod 441 can be telescopic. A second clamping block 442 is fixedly provided on one side of the connecting rod 441 symmetrically. The second clamping block 442 is used to drive the other end of the connecting rod 441 to rotate when the connecting rod 441 rotates close to one end of the male screw 31. When the male screw 31 rotates, it drives the connecting rod 441 and the second clamping block 442 to rotate. The connecting rod 441 is fixedly provided on one end away from the male screw 31. There is a No. 1 bevel gear 443, which is meshed with a No. 2 bevel gear 444. The connecting rod 441 drives the No. 1 bevel gear 443 to rotate when it rotates, and at the same time, the No. 1 bevel gear 443 drives the No. 2 bevel gear 444 to rotate. In order to prevent the No. 1 bevel gear 443 and the No. 2 bevel gear 444 from absorbing too much dust or being damaged, which makes them unable to mesh, a No. 1 gear box 45 for protecting the No. 1 bevel gear 443 and the No. 2 bevel gear 444 is fixedly provided on one side of the housing 1. The No. 1 bevel gear 443 and the No. 2 bevel gear 444 are both rotatably arranged inside the No. 1 gear box 45.

[0032] See also Figure 1-Figure 7 As shown, a cross bar 445 is fixedly provided on one side of the second bevel gear 444. When the second bevel gear 444 rotates, the cross bar 445 drives the cross bar 445 to rotate. One end of the cross bar 445 away from the second bevel gear 444 is arranged inside the filter bin 41. A third bevel gear 446 is fixedly provided on the end of the cross bar 445 away from the second bevel gear 444. The third bevel gear 446 is meshed with a fourth bevel gear 447. When the cross bar 445 rotates, it drives the third bevel gear 446 The third bevel gear 446 and the fourth bevel gear 447 rotate at the same time. In order to prevent the third bevel gear 446 and the fourth bevel gear 447 from being corroded by the liquid inside the filter chamber 41 and becoming unable to engage with each other, a second gear box 46 for protecting the third bevel gear 446 and the fourth bevel gear 447 is fixedly provided inside the filter chamber 41. The third bevel gear 446 and the fourth bevel gear 447 are both rotatably arranged inside the second gear box 46.

[0033] See also Figures 1-8As shown, a vertical rod 448 is fixedly provided on the upper side of the fourth bevel gear 447, and the vertical rod 448 is fixedly connected to the center position of the lower side of the filter plate 431 away from one end of the fourth bevel gear 447. The vertical rod 448 is used to drive the filter plate 431 to rotate. When the fourth bevel gear 447 rotates, it drives the vertical rod 448 to rotate. At the same time, the vertical rod 448 drives the filter plate 431 to rotate. When the filter plate 431 rotates, the liquid inside it is thrown off to prevent the excessive liquid attached to the inside of the filter plate 431 from blocking its interior, thereby reducing the filtering and drying speed of the gas inside the filter chamber 41.

[0034] See also Figure 1-Figure 5 As shown, a pushing component 33 is provided at one end of the male screw 31, and the pushing component 33 is arranged inside the compression chamber. The pushing component 33 includes a push plate 331, and the male screw 31 and the female screw 32 are rotated and inserted in the middle of the push plate 331. A compression spring 332 is fixedly provided between the push plate 331 and the inner wall of the shell 1. When the male screw 31 and the female screw 32 rotate, the compression spring 332 presses the push plate 331 to the side away from the inner wall of the shell 1. The rotating shafts of the male screw 31 and the female screw 32 near one end of the pushing component 33 can be extended and retracted. When the push plate 331 is pressed by the compression spring 332 to move, the male screw 31 and the female screw 32 extend and retract along with the push plate 331.

[0035] See also Figure 1-Figure 7As shown, the male screw 31 and the female screw 32 are both symmetrically fixed with a No. 1 block 34 on one side of the rotating shaft of the pushing component 33, and the multiple No. 1 blocks 34 are used to drive the male screw 31 and the female screw 32 to rotate. When the rotating shaft of the male screw 31 rotates, it drives the two No. 1 blocks 34 to rotate. At the same time, the two No. 1 blocks 34 drive the male screw 31 and the female screw 32 to rotate. In order to prevent the liquid inside the shell 1 from leaking from the gap between the male screw 31 and the female screw 32 and the inner wall of the shell 1, a sealing ring 36 is provided on the end of the male screw 31 and the female screw 32 away from the No. 1 motor 35. The sealing ring 36 is fixedly arranged inside the compression chamber. One end of the rod 31 and the female screw 32 are respectively rotatably set inside the two sealing rings 36. When the male screw 31 and the female screw 32 are worn near one end of the sealing ring 36, the compression spring 332 pushes the male screw 31 and the female screw 32 under the pressure of the push plate 331. Under the push of the push plate 331, one end of the male screw 31 and the female screw 32 is always located inside the two sealing rings 36 and fits with the interior of the shell 1 to prevent the liquid inside the shell 1 from leaking from the gap between the male screw 31 and the female screw 32 and the inner wall of the shell 1. The male screw 31 pushes the connecting rod 441 when moving, and the connecting rod 441 contracts under the push of the male screw 31.

[0036] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency and energy-saving variable frequency refrigeration compressor unit for ships, comprising a housing (1), wherein a partition (2) is fixedly provided inside the housing (1), and the partition (2) divides the interior of the housing (1) into two layers, an air intake chamber and a compression chamber, and is characterized in that: A compression assembly (3) is provided inside the compression chamber, and the compression assembly (3) is used to compress the gas transported to the interior of the compression chamber. A dewatering assembly (4) is provided on one side of the shell (1), and the dewatering assembly (4) is used to remove moisture from the gas inside the air inlet chamber. The dewatering assembly (4) includes a filter chamber (41), and a No. 1 air supply pipe (42) is fixedly provided on the upper side of the filter chamber (41). Both ends of the No. 1 air supply pipe (42) are respectively fixedly provided inside the filter chamber (41) and the air inlet chamber. A drying assembly (43) for filtering moisture is provided inside the filter chamber (41), and a driving assembly (44) is provided on the lower side of the drying assembly (43).

2. The high-efficiency and energy-saving variable frequency refrigeration compressor unit for ships according to claim 1 is characterized in that: The compression assembly (3) comprises a male screw (31), one side of the male screw (31) is meshedly connected to a female screw (32), and the male screw (31) and the female screw (32) are both rotatably arranged inside the compression chamber. When the male screw (31) and the female screw (32) rotate, they compress the gas inside the compression chamber.

3. The high-efficiency and energy-saving variable frequency refrigeration compressor unit for ships according to claim 2, characterized in that: A pushing assembly (33) is provided at one end of the male screw (31), and the pushing assembly (33) is arranged inside the compression chamber. The pushing assembly (33) includes a push plate (331), and the male screw (31) and the female screw (32) are both rotated and inserted in the middle of the push plate (331). A compression spring (332) is fixedly provided between the push plate (331) and the inner wall of the shell (1). The rotating shafts of the male screw (31) and the female screw (32) near one end of the pushing assembly (33) can be extended and retracted. A No. 1 clamping block (34) is fixedly provided on one side of the male screw (31) and the female screw (32) near the rotating shaft of the pushing assembly (33) symmetrically. A plurality of No. 1 clamping blocks (34) are respectively used to drive the male screw (31) and the female screw (32) to rotate.

4. The high-efficiency and energy-saving variable frequency refrigeration compressor unit for ships according to claim 2, characterized in that: A No. 1 motor (35) is fixedly provided on one side of the housing (1), and the rotating shaft of the No. 1 motor (35) is fixedly connected to the rotating shaft of the male screw (31). The ends of the male screw (31) and the female screw (32) away from the No. 1 motor (35) are both provided with sealing rings (36), and the sealing rings (36) are fixedly provided inside the compression chamber, and one end of the male screw (31) and the female screw (32) are respectively rotatably provided inside the two sealing rings (36).

5. The high-efficiency and energy-saving variable frequency refrigeration compressor unit for ships according to claim 1 is characterized in that: The drying component (43) includes a filter plate (431), the filter plate (431) is rotatably arranged inside the filter chamber (41), one end of the No. 1 air supply pipe (42) is arranged inside the filter plate (431), the No. 1 air supply pipe (42) is rotatably connected to the filter plate (431), the end of the No. 1 air supply pipe (42) located inside the filter plate (431) is flat, and a plurality of No. 1 guide plates (432) are fixedly arranged inside the filter chamber (431), the No. 1 guide plates (432) are spiral-shaped, and the No. 1 guide plates (432) are used to stir the gas inside the filter chamber (41) upward.

6. The high-efficiency and energy-saving variable frequency refrigeration compressor unit for ships according to claim 5, characterized in that: The driving assembly (44) includes a connecting rod (441), the connecting rod (441) is rotatably arranged on one side of the housing (1), one end of the connecting rod (441) is fixedly connected to one end of the male screw rod (31), the connecting rod (441) is retractable, and a second clamping block (442) is fixedly arranged on one side of the connecting rod (441) in a symmetrical manner, the second clamping block (442) is used to drive the other end of the connecting rod (441) to rotate when the connecting rod (441) is close to one end of the male screw rod (31). The connecting rod (441) is fixedly provided with a first bevel gear (443) at one end away from the male screw (31), and a second bevel gear (444) is meshedly connected to the first bevel gear (443). A first gear box (45) for protecting the first bevel gear (443) and the second bevel gear (444) is fixedly provided on one side of the housing (1), and the first bevel gear (443) and the second bevel gear (444) are both rotatably arranged inside the first gear box (45).

7. The high-efficiency and energy-saving variable frequency refrigeration compressor unit for ships according to claim 6, characterized in that: A crossbar (445) is fixedly provided on one side of the second bevel gear (444), and an end of the crossbar (445) away from the second bevel gear (444) is arranged inside the filter chamber (41). A third bevel gear (446) is fixedly provided on an end of the crossbar (445) away from the second bevel gear (444), and a fourth bevel gear (447) is meshedly connected to the third bevel gear (446). A gear for meshing the third bevel gear (446) is fixedly provided inside the filter chamber (41). ) and a fourth bevel gear (447) for protection of the second gear box (46), the third bevel gear (446) and the fourth bevel gear (447) are both rotatably arranged inside the second gear box (46), a vertical rod (448) is fixedly arranged on the upper side of the fourth bevel gear (447), and one end of the vertical rod (448) away from the fourth bevel gear (447) is fixedly connected to the center position of the lower side of the filter plate (431), and the vertical rod (448) is used to drive the filter plate (431) to rotate.

8. The high-efficiency and energy-saving variable frequency refrigeration compressor unit for ships according to claim 1, characterized in that: A water storage assembly (47) is provided on the lower side of the filter chamber (41), and the water storage assembly (47) includes a water storage box (471). The water storage box (471) is threadedly connected to the lower side of the filter chamber (41). The water storage box (471) is used to store water inside the filter chamber (41). A float valve (472) is fixedly provided inside the water storage box (471). A No. 2 air supply pipe (48) is fixedly provided on the upper side of the filter chamber (41). One end of the No. 2 air supply pipe (48) is fixedly provided inside the filter chamber (41). The No. 2 air supply pipe (48) is used to transport the filtered gas inside the filter chamber (41).

9. The high-efficiency and energy-saving variable frequency refrigeration compressor unit for ships according to claim 8, characterized in that: An air intake pipe (5) is fixedly provided on a side of the shell (1) close to the second air supply pipe (48), and an end of the second air supply pipe (48) away from the filter chamber (41) is fixedly connected to the air intake pipe (5). An exhaust pipe (6) is fixedly provided on a side of the shell (1) away from the air intake pipe (5), and one end of each of the air intake pipe (5) and the exhaust pipe (6) is arranged inside the compression chamber.

10. The high-efficiency and energy-saving variable frequency refrigeration compressor unit for ships according to claim 1, characterized in that: A filter assembly (7) is provided inside the air intake bin, and the filter assembly (7) includes a filter screen (71). The filter screen (71) is rotatably provided inside the air intake bin, and the filter screen (71) is used to preliminarily filter the gas inside the air intake bin. A plurality of No. 2 guide plates (72) are fixedly provided inside the filter screen (71), and the No. 2 guide plates (72) are used to stir the gas inside the air intake bin. A stopper (73) is fixedly provided at one end of the filter screen (71) close to the air inlet, and the stopper (73) is used to prevent large debris from entering the air intake bin. A No. 2 motor (74) for driving the filter screen (71) to rotate is fixedly provided on one side of the housing (1).

Images