Micro-pressure oxygen-enriched cabin and water-cooling piston type air compressor thereof

Abstract

A water-cooled piston type air compressor and a micro-pressure oxygen-enriched cabin using the same, the compressor comprises a motor, a left steel sleeve, a right steel sleeve and a cylinder body assembly, the left steel sleeve and the right steel sleeve are respectively assembled at two ends of the motor, the cylinder body assembly comprises a left cylinder body assembly correspondingly mounted above the left steel sleeve and a right cylinder body assembly correspondingly mounted above the right steel sleeve, and the left cylinder body assembly and the right cylinder body assembly are respectively assembled on the left steel sleeve and the right steel sleeve. The periphery of the upper portion of a steel jacket body of the left steel jacket and the periphery of the upper portion of a steel jacket body of the right steel jacket are each provided with an annular cooling fin, each cylinder body assembly comprises a cylinder body, each cylinder body is of a double-layer structure, each double-layer structure comprises an upper-layer water cavity and a lower-layer air cavity, and cavities of the upper-layer water cavities and the lower-layer air cavities are separated. The upper-layer water cavity is connected with an external water-cooling circulation system, the lower-layer air cavity is connected with an air channel of the water-cooling piston type air compressor, and the water-cooling piston type air compressor has the advantages of being efficient in heat dissipation, compact in structure, small in occupied space, integrated in assembly, low in cost and convenient to move and transport.

Description

Technical Field

[0001] This utility model relates to the field of micro-pressure oxygen-enriched chamber technology, specifically to a micro-pressure oxygen-enriched chamber and its water-cooled piston air compressor. Background Technology

[0002] Currently, reciprocating compressors commonly used in micro-pressure oxygen-enriched chambers have three main heat-generating points under normal operating conditions. First, the compressor motor generates heat, which is dissipated by the compressor's built-in cooling fan assembly through airflow. Second, the internal piston cups rub against the inner side of the steel sleeve during piston movement, and this frictional heat is dissipated by the steel sleeve itself. Third, the heat generated by air compression during compressor operation is mainly dissipated by the cylinder block at the upper end of the steel sleeve and the aluminum cover on top of the cylinder block. These three heat-generating points affect the compressor's lifespan, heat dissipation, and noise. For the second and third heat-generating points, traditional reciprocating compressors lack effective high-heat-dissipation structures, resulting in air outlet temperatures as high as 70-80 degrees Celsius. Furthermore, reciprocating air compressors on the market that incorporate water-cooling modules often use an external tubular water-cooling solution outside the cylinder block. This external tubular water-cooling solution increases the overall size and cost, and is not conducive to compressor transportation and movement. Therefore, a water-cooled reciprocating air compressor is urgently needed to solve these problems. Utility Model Content

[0003] In view of this, a water-cooled reciprocating air compressor is provided, which can efficiently dissipate heat from the cabin, has a compact structure, occupies little space, is integrated into the assembly, reduces costs, and is easy to move and transport, as well as a micro-pressure oxygen-enriched cabin using such a water-cooled reciprocating air compressor.

[0004] A water-cooled reciprocating air compressor includes a motor, a left steel sleeve and a right steel sleeve respectively mounted on both ends of the motor, and a cylinder assembly. The cylinder assembly includes a left cylinder assembly correspondingly mounted above the left steel sleeve and a right cylinder assembly correspondingly mounted above the right steel sleeve. Each of the left and right steel sleeves has a set of annular heat dissipation fins on the outer periphery of its upper part. Each cylinder assembly includes a cylinder body, which has a double-layer structure. The double-layer structure includes an upper water chamber and a lower air chamber, which are separated. The upper water chamber is connected to an external water-cooling circulation system, and the lower air chamber is connected to the air passage of the water-cooled reciprocating air compressor.

[0005] Furthermore, the cylinder assembly also includes a cylinder top cover, a cylinder base, a first seal, and a second seal. The cylinder top cover is fixed to the cylinder body and is sealed by the first seal to form the upper water chamber. The cylinder base is fixed to the cylinder body and is sealed by the second seal to form the lower air chamber.

[0006] Furthermore, the upper water chamber of the left cylinder block assembly and the upper water chamber of the right cylinder block assembly are synchronously connected in parallel to the same external water cooling circulation system.

[0007] Furthermore, the water-cooled reciprocating air compressor also includes a first water pipe and a second water pipe. The first water pipe is provided with a water inlet, and the second water pipe is provided with a water outlet. The first water pipe is connected to the left and right cylinder assemblies respectively, and the second water pipe is connected to the left and right cylinder assemblies respectively. The upper water chamber is connected to the external water-cooling circulation system through the water inlet and the water outlet. The external water-cooling circulation system includes a water-cooling pump, auxiliary fins, and an auxiliary fan. The water-cooling pump provides water circulation power for the external water-cooling circulation system. The auxiliary fins and the auxiliary fan work together to cool the water discharged from the water outlet.

[0008] Furthermore, the water-cooled piston air compressor also includes multiple sets of water-cooled fins, which are disposed in the upper water cavity and are arranged in a staggered parallel manner to form an S-shaped water circulation channel.

[0009] Furthermore, the lower air chamber of the left cylinder block assembly and the lower air chamber of the right cylinder block assembly are synchronously connected in parallel to the same air passage.

[0010] Furthermore, the water-cooled piston air compressor also includes a first air pipe and a second air pipe. The first air pipe is connected to the left and right cylinder assemblies respectively, and the second air pipe is connected to the left and right cylinder assemblies respectively. The first air pipe is provided with an air inlet, and the second air pipe is provided with an exhaust outlet.

[0011] Furthermore, the water-cooled piston air compressor also includes two cooling fans. Fan mounting holes are opened at the lower part of the steel sleeve body of the left and right steel sleeves. The two cooling fans are installed in the fan mounting holes and are symmetrically distributed on both sides of the motor.

[0012] Furthermore, the cylinder body is a thermally conductive metal body, the annular heat dissipation fins and the steel sleeve are integrally formed, and the water-cooling fins and the cylinder body are integrally formed.

[0013] A low-pressure oxygen-enriched chamber includes a chamber body, an air conditioning unit, and an air inlet pipe and an air outlet pipe connecting the chamber body. The air conditioning unit includes a water-cooled reciprocating air compressor as described in any of the above claims. The air passage of the water-cooled reciprocating air compressor has an exhaust port and an air inlet. The exhaust port is connected to the air inlet pipe of the chamber body, and the air inlet is connected to the air outlet pipe of the chamber body.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects:

[0015] First, this water-cooled reciprocating air compressor improves the traditional reciprocating air compressor's annular steel sleeve to a steel sleeve with an annular fin structure. Because the annular heat dissipation fins have multiple fin surfaces, the heat dissipation area is larger than that of the annular one. This structure increases the heat dissipation area of ​​the steel sleeve itself, improves the heat exchange efficiency, and helps to transfer the heat generated by the friction between the internal rubber cup and the inner side of the steel sleeve when the compressor piston moves more quickly.

[0016] Secondly, this water-cooled reciprocating air compressor has a double-layer structure with an upper water chamber and a lower air chamber inside the cylinder body. The upper water chamber is connected to an external water-cooling circulation system. The circulating cold water can carry away the heat from the air compression in the lower air chamber through heat transfer. Specifically, multiple water-cooling fins are also installed in the upper water chamber. The water-cooling fins not only increase the heat dissipation area of ​​the cylinder body itself, but also lengthen the water circulation channel, thus making heat exchange more complete. Compared with traditional reciprocating air compressors, the compressor using this structure has a significant heat dissipation effect, and the exhaust port temperature of the compressor is significantly reduced. Because the exhaust port is connected to the air intake pipe of the cabin, this water-cooled reciprocating air compressor can significantly reduce the cabin temperature.

[0017] Third, the water-cooling structure of this water-cooled piston air compressor is located in the upper water chamber. The water-cooling structure and the cylinder are integrated into one design. Compared with the traditional common air compressor external tube water-cooling structure, it is more compact, occupies less space, reduces costs, and is easier to move and transport. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a water-cooled piston air compressor according to an embodiment of the present invention.

[0019] Figure 2 This is a cross-sectional schematic diagram of the cylinder assembly and water / air pipe assembly of a water-cooled piston air compressor according to an embodiment of this utility model.

[0020] Figure 3 This is a three-dimensional schematic diagram of the removal of the cylinder top cover of a water-cooled piston air compressor according to an embodiment of this utility model.

[0021] Figure 4 This is a three-dimensional schematic diagram of the annular heat dissipation fins of a water-cooled piston air compressor according to an embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the structure connecting the cabin and the air compressor of a micro-pressure oxygen-enriched chamber and its water-cooled piston air compressor, according to an embodiment of this utility model.

[0023] In the picture,

[0024] 1. Motor; 2. Left steel sleeve; 3. Right steel sleeve; 4. Left cylinder assembly; 5. Right cylinder assembly; 6. Annular heat dissipation fins; 7. Cylinder body; 8. Upper water chamber; 9. Lower air chamber; 10. Cylinder top cover; 11. Cylinder base; 12. First seal; 13. Second seal; 14. First water pipe; 15. Second water pipe; 16. First air pipe; 17. Second air pipe; 18. Water-cooled fins; 19. Water inlet; 20. Drain outlet; 21. Air inlet; 22. Exhaust outlet; 23. Cooling fan; 24. Air compressor; 25. Cabin; 26. Air inlet pipe; 27. Air outlet pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 5 This illustration shows an embodiment of a water-cooled reciprocating air compressor, comprising a motor 1, a left steel sleeve 2 and a right steel sleeve 3 respectively mounted to both ends of the motor 1, a cylinder assembly, the cylinder assembly including a left cylinder assembly 4 correspondingly mounted above the left steel sleeve 2 and a right cylinder assembly 5 correspondingly mounted above the right steel sleeve 3, each of the upper outer periphery of the steel sleeve body of the left steel sleeve 2 and the right steel sleeve 3 being provided with a set of annular heat dissipation fins 6, each cylinder assembly including a cylinder body 7, the cylinder body 7 having a double-layer structure, the double-layer structure including an upper water chamber 8 and a lower air chamber 9, the upper water chamber 8 and the lower air chamber 9 being separated, the upper water chamber 8 being connected to an external water-cooling circulation system, and the lower air chamber 9 being connected to the air passage of the water-cooled reciprocating air compressor.

[0027] Specifically, the cylinder assembly further includes a cylinder top cover 10, a cylinder base 11, a first seal 12, and a second seal 13. The cylinder top cover 10 is fixed to the cylinder body 7 and is sealed by the first seal 12 to form the upper water chamber 8. The cylinder base 11 is fixed to the cylinder body 7 and is sealed by the second seal 13 to form the lower air chamber 9.

[0028] Specifically, the upper water chamber 8 of the left cylinder block assembly 4 and the upper water chamber 8 of the right cylinder block assembly 5 are synchronously connected in parallel to the same external water cooling circulation system.

[0029] Specifically, the water-cooled reciprocating air compressor further includes a first water pipe 14 and a second water pipe 15. The first water pipe 14 is provided with a water inlet 19, and the second water pipe 15 is provided with a drain outlet 20. The first water pipe 14 is connected to the left cylinder assembly 4 and the right cylinder assembly 5 respectively, and the second water pipe 15 is connected to the left cylinder assembly 4 and the right cylinder assembly 5 respectively. The upper water chamber 8 is connected to the external water-cooling circulation system through the water inlet 19 and the drain outlet 20. The external water-cooling circulation system includes a water-cooled pump, auxiliary fins, and an auxiliary fan.

[0030] In some specific embodiments, the water-cooled pump provides power to the water circulation system, and the auxiliary fins and auxiliary fan cool the high-temperature water discharged from the drain outlet 20. After being cooled, the high-temperature water becomes cold water and then enters the upper water chamber 8 through the inlet 19 to achieve water circulation and heat dissipation.

[0031] Specifically, the water-cooled piston air compressor also includes multiple sets of water-cooled fins 18, which are disposed in the upper water chamber 8 and are arranged in parallel to form an S-shaped water circulation channel.

[0032] In some specific embodiments, multiple water-cooled fins 18 are fins that extend from the two opposing inner walls of the cylinder body 7 in a staggered manner. The multiple water-cooled fins 18 are parallel to each other, and the upper end face of each water-cooled fin 18 abuts against the bottom surface of the cylinder top cover 10. The lower end face of each water-cooled fin 18 extends to the bottom cavity surface of the upper water cavity 8. The multiple water-cooled fins 18 are arranged to form an S-shaped water circulation channel. Cold water enters through the inlet 19, flows through the S-shaped water circulation channel in the upper water cavity 8, and is discharged from the outlet 20. The staggered arrangement of the water-cooled fins 18 is to increase the path of the water circulation channel, so that the heat exchange between the upper water cavity 8 and the lower air cavity 9 is more complete.

[0033] Specifically, the lower air chamber 9 of the left cylinder assembly 4 and the lower air chamber 9 of the right cylinder assembly 5 are synchronously connected in parallel to the same air passage. The parallel design ensures that the heat of the compressed air in both cylinders is similar, avoiding overheating on one side. Combined with the water cooling circulation of the upper water chamber 8, the heat exchange efficiency is further optimized.

[0034] Specifically, the water-cooled piston air compressor further includes a first air pipe 16 and a second air pipe 17. The first air pipe 16 is connected to the left cylinder assembly 4 and the right cylinder assembly 5 respectively, and the second air pipe 17 is connected to the left cylinder assembly 4 and the right cylinder assembly 5 respectively. The first air pipe 16 is provided with an air inlet 21, and the second air pipe 17 is provided with an exhaust port 22.

[0035] Specifically, the water-cooled piston air compressor also includes two cooling fans 23. Fan mounting holes are opened at the lower part of the steel sleeve body of the left steel sleeve 2 and the right steel sleeve 3. The two cooling fans 23 are installed in the fan mounting holes and are symmetrically distributed on both sides of the motor 1.

[0036] Specifically, the cylinder body 7 is a thermally conductive metal body, more specifically, the cylinder body 7 is preferably made of aluminum alloy, the annular heat dissipation fins 6 and the steel sleeve are integrally formed, and the water-cooling fins 18 and the cylinder body 7 are integrally formed.

[0037] A low-pressure oxygen-enriched chamber includes a chamber body 25, an air conditioning unit, and an air inlet pipe 26 and an air outlet pipe 27 connecting the chamber body. The air conditioning unit includes a water-cooled piston air compressor as described in any of the above claims. The air compressor 24 has an exhaust port 22 and an air inlet 21 in its air passage. The exhaust port 22 is connected to the air inlet pipe 26 of the chamber body 25, and the air inlet 21 is connected to the air outlet pipe 27 of the chamber body 25.

[0038] In summary, this water-cooled reciprocating air compressor improves upon the traditional annular steel sleeve of a reciprocating air compressor by replacing it with a steel sleeve featuring an annular finned structure. The annular heat dissipation fins 6, due to their multiple fin surfaces, have a larger heat dissipation area compared to the annular type. This structure increases the heat dissipation area of ​​the steel sleeve itself, improving heat exchange efficiency and facilitating faster heat transfer from the friction between the internal piston cup and the inner side of the steel sleeve during compressor piston movement. Furthermore, this water-cooled reciprocating air compressor features a double-layer structure within the cylinder body 7, consisting of an upper water chamber 8 and a lower air chamber 9. The upper water chamber 8 is connected to an external water-cooling circulation system, and the circulating cold water carries away the heat generated by air compression in the lower air chamber 9 through heat transfer. Specifically, the upper water chamber 8 also contains… Multiple water-cooled fins 18 increase the heat dissipation area of ​​the cylinder body 7 and lengthen the water circulation channel, resulting in more efficient heat exchange. Compared with traditional piston air compressors, the compressor with this structure has a significant heat dissipation effect. During operation, the temperature at the exhaust port 22 of the air compressor 24 can be significantly reduced. Since the exhaust port 22 is connected to the intake pipe 26 of the compartment 25, the air compressor 24 can significantly reduce the temperature of the compartment 25. In addition, the water-cooling structure of this water-cooled piston air compressor is located in the upper water chamber 8. The water-cooling structure and the cylinder body are integrated into one design. Compared with the traditional common external tube-type water-cooling structure of air compressors, it is more compact, occupies less space, reduces costs, and is easier to move and transport.

[0039] It should be noted that this utility model is not limited to the above-described embodiments. Based on the inventive spirit of this utility model, those skilled in the art can make other changes, and these changes made based on the inventive spirit of this utility model should be included within the scope of protection claimed by this utility model.

Claims

1. A water-cooled piston air compressor, comprising a motor, a left steel sleeve and a right steel sleeve respectively assembled to both ends of the motor, characterized in that, It also includes cylinder assembly, which includes a left cylinder assembly correspondingly installed above the left steel sleeve and a right cylinder assembly correspondingly installed above the right steel sleeve. Each of the left and right steel sleeves has a set of annular heat dissipation fins on the outer periphery of its upper part. Each cylinder assembly includes a cylinder body, which has a double-layer structure, including an upper water chamber and a lower air chamber. The upper water chamber and the lower air chamber are separated. The upper water chamber is connected to an external water-cooling circulation system, and the lower air chamber is connected to the air passage of the water-cooled piston air compressor.

2. A water-cooled reciprocating air compressor as described in claim 1, characterized in that, The cylinder assembly further includes a cylinder top cover, a cylinder base, a first seal, and a second seal. The cylinder top cover is fixed to the cylinder body and is sealed by the first seal to form the upper water chamber. The cylinder base is fixed to the cylinder body and is sealed by the second seal to form the lower air chamber.

3. A water-cooled reciprocating air compressor as described in claim 1, characterized in that, The upper water chambers of the left cylinder block assembly and the right cylinder block assembly are synchronously connected in parallel to the same external water cooling circulation system.

4. A water-cooled reciprocating air compressor as described in claim 1, characterized in that, The water-cooled reciprocating air compressor further includes a first water pipe and a second water pipe. The first water pipe is provided with a water inlet, and the second water pipe is provided with a water outlet. The first water pipe is connected to the left and right cylinder assemblies respectively, and the second water pipe is connected to the left and right cylinder assemblies respectively. The upper water chamber is connected to the external water-cooling circulation system through the water inlet and the water outlet. The external water-cooling circulation system includes a water-cooling pump, auxiliary fins, and an auxiliary fan. The water-cooling pump provides water circulation power for the external water-cooling circulation system. The auxiliary fins and the auxiliary fan work together to cool the water discharged from the water outlet.

5. A water-cooled reciprocating air compressor as described in claim 1, characterized in that, The water-cooled piston air compressor also includes multiple sets of water-cooled fins, which are disposed in the upper water cavity and are arranged in a staggered parallel manner to form an S-shaped water circulation channel.

6. A water-cooled reciprocating air compressor as described in claim 1, characterized in that, The lower air chambers of the left cylinder block assembly and the lower air chambers of the right cylinder block assembly are synchronously connected in parallel to the same air passage.

7. A water-cooled reciprocating air compressor as described in claim 1, characterized in that, The water-cooled piston air compressor also includes a first air pipe and a second air pipe. The first air pipe is connected to the left and right cylinder assemblies respectively, and the second air pipe is connected to the left and right cylinder assemblies respectively. The first air pipe is provided with an air inlet, and the second air pipe is provided with an exhaust outlet.

8. A water-cooled reciprocating air compressor as described in claim 1, characterized in that, The water-cooled piston air compressor also includes two cooling fans. Fan mounting holes are opened at the lower part of the steel sleeve body of the left and right steel sleeves. The two cooling fans are installed in the fan mounting holes and are symmetrically distributed on both sides of the motor.

9. A water-cooled reciprocating air compressor as described in claim 5, characterized in that, The cylinder body is a thermally conductive metal body, the annular heat dissipation fins and the steel sleeve are integrally formed, and the water-cooling fins and the cylinder body are integrally formed.

10. A low-pressure oxygen-enriched chamber, comprising a chamber body, an air conditioning unit, and an air inlet pipe and an air outlet pipe connecting the chamber body, characterized in that, The air conditioning device includes a water-cooled reciprocating air compressor as described in any one of claims 1 to 9, wherein the air passage of the water-cooled reciprocating air compressor has an exhaust port and an air inlet, the exhaust port is connected to the air inlet pipe of the cabin, and the air inlet is connected to the air outlet pipe of the cabin.

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