Compressor cylinder mechanism and compressor thereof

Abstract

The utility model discloses a kind of compressor cylinder mechanism and its compressor, belong to compressor technical field.The device includes cylinder, the cylinder includes shell, the shell front side is provided with input interface and output interface, the shell inside cooperation is provided with piston, the shell rear side is fixedly provided with fixed outer edge, the shell side surface is coaxially provided with cooling sleeve, there is gap between the cooling sleeve side wall and shell side wall, the cooling sleeve rear side is fixedly provided with the connecting outer edge of the detachable connection with fixed outer edge, the cooling sleeve front side board wall is attached in shell front side, and the shell front side is detachably connected with the cooling sleeve front side.The utility model forms specific gap between cooling sleeve and cylinder shell when using, cooling liquid flows therein, can be fully contacted and absorb heat emitted by shell, so that cylinder is always kept in suitable working temperature range, effectively avoid the problem such as component wear aggravation caused by temperature too high.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and in particular to a compressor cylinder mechanism and its compressor. Background Technology

[0002] A compressor is a mechanical device used to compress gases. It mechanically draws in low-pressure gas and uses internal moving parts such as pistons, screws, and scrolls to do work on the gas, reducing its volume and increasing its pressure, ultimately outputting high-pressure gas. Compressors are widely used in many fields, including industrial production, refrigeration and air conditioning, automotive engines, and gas transportation.

[0003] A reciprocating compressor is a common type of positive displacement compressor that compresses gas by the reciprocating motion of a piston within a cylinder. During operation, as the piston moves downwards, a negative pressure is created inside the cylinder, drawing gas in; as the piston moves upwards, the gas is compressed, its pressure increases, and it is then expelled. This cycle repeats to achieve gas compression. Air compression typically generates a significant amount of heat, which is usually cooled by airflow generated by a fan. The fan is mounted on the compressor casing; during operation, air is forced across the surface of the compressor casing, carrying away the heat generated during compressor operation, thus lowering the compressor temperature and ensuring stable operation.

[0004] The shortcomings of the existing technical solutions are as follows: the cooling effect of air cooling is greatly affected by the environment. In high-temperature environments, the ambient air temperature is already high, and the amount of heat that can be absorbed is limited, making it difficult to effectively reduce the compressor temperature. Moreover, the heat dissipation efficiency of air cooling is relatively low. For large, high-power piston compressors, air cooling alone may not be able to remove a large amount of heat in time, causing the compressor to operate at a high temperature for a long time, which affects the service life of the sealing moving parts. Utility Model Content

[0005] This invention provides a compressor cylinder mechanism and its compressor, which can solve the problem of poor cooling effect of cylinders cooled by air in the prior art.

[0006] A compressor cylinder mechanism includes a cylinder, the cylinder comprising a housing, an input interface and an output interface on the front side of the housing, a piston fitted inside the housing, a fixed outer edge fixedly disposed on the rear side of the housing, a cooling sleeve coaxially disposed on the side of the housing, a gap existing between the side wall of the cooling sleeve and the side wall of the housing, a connecting outer edge fixedly disposed on the rear side of the cooling sleeve and detachably connected to the fixed outer edge, a front side plate wall of the cooling sleeve adhering to the front side of the housing, the front side of the housing and the front side of the cooling sleeve being detachably connected, an opening corresponding to the input interface and the output interface being opened at the front end of the cooling sleeve; a fluid return interface is disposed at the upper part of the cooling sleeve, and a fluid delivery interface is disposed at the lower part of the cooling sleeve; the device further includes a cooling circulation assembly for delivering coolant into the fluid delivery interface and extracting fluid from the fluid return interface.

[0007] As a further embodiment of this utility model: the cooling circulation component includes a cooling tank, on which a delivery pipe connected to a fluid delivery interface and a return pipe connected to a fluid return interface are connected, and a water pump cooperating with the return pipe is provided on the cooling tank, and a cooling assembly is provided inside the cooling tank.

[0008] As a further embodiment of this utility model: a limiting block is fixedly provided on the fixed outer edge, and a limiting port that cooperates with the limiting block is opened on the connecting outer edge.

[0009] As a further embodiment of this utility model: a washer that mates with the front side wall of the cooling sleeve is fixedly provided on the front edge of the outer shell.

[0010] As a further embodiment of this utility model: the input interface is provided with a one-way valve with the output port facing the inside of the housing, and the output interface is provided with a one-way valve with the output port facing the outside of the housing.

[0011] As a further embodiment of this utility model, air valves are provided on both the input and output interfaces.

[0012] A compressor equipped with a compressor cylinder mechanism as described in any one of claims includes a support frame, a drive mechanism on the support frame, two sets of cylinders, each set of cylinders being equipped with a corresponding cooling sleeve, and the drive mechanism being able to drive the pistons in the two sets of cylinders to reciprocate.

[0013] As a further embodiment of this utility model: the driving mechanism includes a crankshaft rotatably mounted on a support frame and a motor fixedly mounted on the support frame for driving the crankshaft to rotate; a slide rod is fixedly connected to the rear side of each set of pistons, the slide rod passes through the rear side wall of the housing, a slider is fixedly connected to the end of each set of slide rods away from the piston, a connecting rod is movably connected to the side of each set of sliders away from the slide rod, and the other end of each set of connecting rods is rotatably connected to the crankshaft.

[0014] As a further embodiment of this utility model: a support box plate is fixedly provided on the rear side of each set of the outer shell, a sliding sleeve is fixedly provided on the support box plate, the sliding rod slides through the support box plate, and the slider is movably engaged with the sliding sleeve.

[0015] As a further embodiment of this utility model: a protective cover is fixedly installed on the support frame, covering the outside of the crankshaft, connecting rod, slider and sliding sleeve.

[0016] The beneficial effects of this utility model are:

[0017] 1. In use, this invention creates a specific gap between the cooling sleeve and the cylinder shell, allowing the coolant to flow within it and fully contact and absorb the heat emitted by the shell. The cooling circulation assembly operates continuously, with a water pump delivering low-temperature coolant to the cooling sleeve. The high-temperature coolant, after absorbing heat, promptly flows back to the cooling tank, is cooled by the cooling assembly, and then circulates again. This water-cooled circulation system can quickly remove the large amount of heat generated during cylinder operation, keeping the cylinder within a suitable operating temperature range and effectively preventing performance degradation and accelerated component wear caused by excessively high temperatures.

[0018] 2. During installation, this utility model achieves initial positioning through the cooperation of the limiting block and the limiting port. Bolts are then used to fix the connecting outer edge to the fixed outer edge, and the front end of the cooling sleeve to the front end of the outer shell, making the installation process simple and straightforward. When maintenance is required, simply reverse the operation: first unscrew the front bolt, then remove the bolts on the connecting outer edge to easily remove the cooling sleeve. Furthermore, the gaskets provided at the outer shell and connecting outer edge not only ensure a sealing effect but also facilitate replacement during disassembly, greatly reducing maintenance difficulty and cost. Attached Figure Description

[0019] Figure 1 A schematic diagram of a compressor cylinder mechanism and its overall compressor structure provided by this utility model;

[0020] Figure 2 A compressor cylinder mechanism and a schematic diagram of the compressor cylinder structure provided by this utility model;

[0021] Figure 3 A schematic diagram of a compressor cylinder mechanism and its separation structure between the compressor cylinder and the cooling sleeve provided by this utility model;

[0022] Figure 4 This utility model provides a compressor cylinder mechanism and a schematic diagram of the longitudinal section structure of the compressor cylinder.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Cylinder; 101. Housing; 102. Fixed outer edge; 103. Limiting block; 104. Washer; 105. Input interface; 106. Output interface; 107. Piston; 2. Support frame; 3. Cooling sleeve; 301. Opening; 302. Fluid return interface; 303. Fluid delivery interface; 304. Connecting outer edge; 305. Limiting port; 4. Drive mechanism; 401. Motor; 402. Crankshaft; 403. Connecting rod; 404. Slider; 405. Sliding rod; 406. Sliding sleeve; 5. Support box plate; 6. Cooling circulation assembly; 601. Delivery pipe; 602. Return pipe; 603. Water pump; 604. Cooling box. Detailed Implementation

[0025] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0026] like Figures 1 to 4 As shown, this embodiment of the present invention provides a compressor cylinder mechanism, including a cylinder body 1. The cylinder 1 includes a housing 101, with an input interface 105 and an output interface 106 disposed on the front side of the housing 101. A one-way valve with its output port facing inwards from the housing 101 is installed on the input interface 105, while a one-way valve with its output port facing outwards from the housing 101 is installed on the output interface 106. This allows the output interface 106 to be easily connected to a gas cylinder or other gas storage device, while the input interface 105 can be connected to a gas supply pipeline to provide the gas to be compressed. Inside the housing 101, a piston 107 is disposed, and the reciprocating motion of the piston 107 achieves effective compression of the gas.

[0027] A fixed outer edge 102 is fixedly provided on the rear side of the housing 101. Simultaneously, a cooling sleeve 3 is coaxially provided on the side of the housing 101, with a certain gap between the side wall of the cooling sleeve 3 and the side wall of the housing 101 to allow cooling water to flow, thereby achieving effective cooling of the cylinder 1. A connecting outer edge 304 is fixedly provided on the rear side of the cooling sleeve 3, and this connecting outer edge 304 is detachably connected to the fixed outer edge 102 by bolts. The front side plate of the cooling sleeve 3 is tightly fitted to the front side of the housing 101, and the front side of the housing 101 and the front side of the cooling sleeve 3 are also detachably connected by bolts. Furthermore, the front end of the cooling sleeve 3 has an opening 301 corresponding to the input interface 105 and the output interface 106, so that the input interface 105 and the output interface 106 can be easily connected to other devices.

[0028] To achieve coolant circulation, the upper part of the cooling sleeve 3 is provided with a fluid return port 302, while the lower part is provided with a fluid delivery port 303. The device also includes a cooling circulation assembly 6, which is used to deliver coolant into the fluid delivery port 303 and extract fluid from the fluid return port 302, thereby achieving coolant circulation.

[0029] In one specific embodiment, the cooling circulation component includes a cooling tank 604. The cooling tank 604 is connected to a delivery pipe 601 connected to a fluid delivery interface 303 and a return pipe 602 connected to a fluid return interface 302. Valves are installed on both the delivery pipe 601 and the return pipe 602. A water pump 603, cooperating with the return pipe 602, is also installed on the cooling tank 604. During operation, the coolant between the cooling sleeve 3 and the outer shell 101 enters the cooling tank 604 from the return pipe 602 under the action of the water pump 603. The coolant at the bottom of the cooling tank 604 is naturally drawn in by the negative pressure environment between the cooling sleeve 3 and the outer shell 101, thereby effectively cooling the surface of the outer shell 101. Furthermore, a cooling assembly is provided inside the cooling tank 604. This cooling assembly can be a fan, a cooling block, or other devices capable of achieving a cooling effect, all of which fall within the protection scope of this patent.

[0030] The cooling sleeve 3 is relatively easy to maintain. A limiting block 103 is fixedly installed on the fixed outer edge 102, while a limiting port 305 that mates with the limiting block 103 is opened on the connecting outer edge 304. During installation, the cooling sleeve 3 is first placed on the outside of the outer shell 101, and the limiting port 305 is attached to the limiting block 103, thus achieving initial positioning of the cooling sleeve 3 and the outer shell 101. Then, the connecting outer edge 304 is fixed to the fixed outer edge 102 with bolts, and the front end of the cooling sleeve 3 is fixed to the front end of the outer shell 101 with bolts. In this way, a gap for coolant flow is formed between the cooling sleeve 3 and the outer shell 101, thus completing the installation of the cooling sleeve 3 and the outer shell 101. When a lot of scale adheres to the outside of the outer shell 101 and the inside of the cooling sleeve 3, affecting the cooling effect of the cooling water, the above installation method can be used for disassembly, cleaning, and reinstallation.

[0031] To prevent coolant leakage and ensure a proper seal, a washer 104 is provided on the front edge of the outer casing 101 to mate with the front sidewall of the cooling sleeve 3. Simultaneously, a washer 104 is also provided on the fixed outer edge 102 to mate with the connecting outer edge 304. These washers 104 need to be replaced periodically (ideally during each scheduled maintenance) to prevent seal failure due to wear.

[0032] like Figure 2 As shown, in this embodiment, the output interface 106 has one set (the interface marked OUT below), and the input interface 105 has four sets (the interfaces marked IN below). To facilitate the operator's control of the connection status between the input interface 105 and the output interface 106, air valves are provided on both the input interface 105 and the output interface 106. These air valves can be opened or closed as needed to achieve precise control of the gas flow.

[0033] This patent also provides a compressor equipped with the aforementioned compressor cylinder 1 mechanism. Specifically, the compressor has two sets of cylinders 1, each set of cylinders 1 being equipped with a corresponding cooling sleeve 3. In addition, the compressor also includes a support frame 2, on which a drive mechanism 4 is provided for driving the pistons 107 in the two sets of cylinders 1 to reciprocate.

[0034] In one specific embodiment, the drive mechanism 4 includes a crankshaft 402 rotatably mounted on a support frame 2, and a motor 401 fixedly mounted on the support frame 2 for driving the crankshaft 402 to rotate. A slide rod 405 is fixedly connected to the rear side of each set of pistons 107, and the slide rod 405 passes through the rear sidewall of the housing 101. A slider 404 is fixedly connected to the end of each set of slide rods 405 away from the piston 107, and a connecting rod 403 is movably connected to the side of each set of sliders 404 away from the slide rod 405. The other end of each set of connecting rods 403 is rotatably connected to the crankshaft 402. In use, the motor 401 drives the crankshaft 402 to rotate, and the crankshaft 402 in turn drives one end of the two sets of connecting rods 403 to perform circular motion. This in turn drives the other end of the connecting rods 403 to drive the slider 404 to reciprocate, and the slider 404 then drives the slide rod 405 and the piston 107 to move, thereby achieving effective compression of the gas.

[0035] To further ensure operational stability, a support plate 5 is fixedly installed on the rear side of each housing 101. The support plate 5 has a certain mass and is placed on the ground. A sliding sleeve 406 is fixedly installed on the support plate 5, and a sliding rod 405 slides through the support plate 5, while a slider 404 is in movable cooperation with the sliding sleeve 406. This design allows the sliding rod 405 and the slider 404 to be effectively supported and guided during movement, thereby ensuring operational stability and reliability.

[0036] In addition, a protective cover (not shown in the figure) is fixedly installed on the support frame 2, covering the crankshaft 402, connecting rod 403, slider 404, and sliding sleeve 406. This protective cover is used to reduce the interference of the external environment on the movement of the crankshaft 402, connecting rod 403, and slider 404, thereby further ensuring the stable operation of the compressor and extending its service life.

[0037] Working principle: When the compressor starts, the motor 401 starts running, driving the crankshaft 402 to rotate. The rotational motion of the crankshaft 402 is converted into the reciprocating linear motion of the slider 404 through the connecting rod 403. Since the slider 404 is fixedly connected to the slide rod 405, and the other end of the slide rod 405 is connected to the piston 107, the reciprocating motion of the slider 404 drives the piston 107 to reciprocate inside the outer shell 101 of the cylinder 1.

[0038] During the reciprocating motion of piston 107, cylinder 1 draws in gas through input port 105. Because a one-way valve is installed on input port 105, gas can only flow into cylinder 1 in one direction. As piston 107 compresses, the gas is compressed and generates high pressure. When the gas pressure reaches a certain level, the one-way valve on output port 106 opens, and the high-pressure gas is discharged through output port 106, which can then be connected to a gas cylinder or other gas storage device for storage or further use.

[0039] Meanwhile, to reduce the heat generated by cylinder 1 during operation, cooling circulation assembly 6 starts working. Water pump 603 starts, and coolant in cooling tank 604 is delivered to fluid delivery port 303 of cooling sleeve 3 through delivery pipe 601. Coolant enters the gap between cooling sleeve 3 and outer shell 101, cooling outer shell 101, and the temperature of coolant rises after absorbing heat. Subsequently, the heated coolant flows back to cooling tank 604 through fluid return port 302 and return pipe 602.

[0040] When maintenance of the cooling sleeve is required, disassembly is performed first. The operator uses tools to unscrew the bolts connecting the front end of the cooling sleeve 3 to the front end of the outer casing 101, thus releasing the front-end fixation. Next, the bolts connecting the outer edge 304 and the fixed outer edge 102 are also unscrewed. At this point, the fixing constraint between the cooling sleeve 3 and the outer casing 101 is essentially released. During disassembly, the washers 104 on the front side of the outer casing 101 and the fixed outer edge 102 need to be removed, the seams wiped clean, and new washers 104 reattached.

[0041] During installation, first, place the cooling sleeve 3 on the outside of the outer casing 101, align the limiting port 305 with the limiting block 103, and hang it on to achieve initial positioning. Then, use bolts to fix the connecting outer edge 304 to the fixing outer edge 102, and then fix the front end of the cooling sleeve 3 to the front end of the outer casing 101 with bolts, so that a gap for coolant flow is formed between the cooling sleeve 3 and the outer casing 101. The installation is then complete, and the device can be put back into use.

[0042] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A compressor cylinder mechanism, comprising a cylinder (1), the cylinder (1) including a housing (101), an input interface (105) and an output interface (106) being provided on the front side of the housing (101), and a piston (107) being fitted inside the housing (101), characterized in that, A fixed outer edge (102) is fixedly provided on the rear side of the outer shell (101), and a cooling sleeve (3) is coaxially provided on the side of the outer shell (101). There is a gap between the side wall of the cooling sleeve (3) and the side wall of the outer shell (101). A connecting outer edge (304) is fixedly provided on the rear side of the cooling sleeve (3) and detachably connected to the fixed outer edge (102). The front side plate of the cooling sleeve (3) is attached to the front side of the outer shell (101). The front side of the outer shell (101) and the cooling sleeve (3) are connected together. 3) The front side is detachable. The front end of the cooling sleeve (3) has an opening (301) corresponding to the input interface (105) and the output interface (106). The upper part of the cooling sleeve (3) is provided with a fluid return interface (302), and the lower part of the cooling sleeve (3) is provided with a fluid delivery interface (303). The mechanism also includes a cooling circulation component (6) for delivering coolant into the fluid delivery interface (303) and extracting fluid from the fluid return interface (302).

2. The compressor cylinder mechanism as described in claim 1, characterized in that, The cooling circulation component includes a cooling tank (604), on which a delivery pipe (601) connected to a fluid delivery interface (303) and a return pipe (602) connected to a fluid return interface (302) are connected. A water pump (603) that cooperates with the return pipe (602) is provided on the cooling tank (604), and a cooling assembly is provided inside the cooling tank (604).

3. A compressor cylinder mechanism as described in claim 1, characterized in that, A limiting block (103) is fixedly provided on the fixed outer edge (102), and a limiting port (305) that cooperates with the limiting block (103) is provided on the connecting outer edge (304).

4. A compressor cylinder mechanism as described in claim 1, characterized in that, The front edge of the outer shell (101) is fixedly provided with a washer (104) that mates with the front side wall of the cooling sleeve (3).

5. A compressor cylinder mechanism as described in claim 1, characterized in that, The input interface (105) is equipped with a one-way valve whose output port faces the inside of the outer shell (101), and the output interface (106) is equipped with a one-way valve whose output port faces the outside of the outer shell (101).

6. A compressor cylinder mechanism as described in claim 5, characterized in that, Both the input interface (105) and the output interface (106) are equipped with air valves.

7. A compressor equipped with a compressor cylinder mechanism as described in any one of claims 1 to 6, comprising a support frame (2), characterized in that, The support frame (2) is provided with a drive mechanism (4), and the cylinder (1) is provided in two sets. Each set of cylinders (1) is equipped with a corresponding cooling sleeve (3). The drive mechanism (4) can drive the pistons (107) in the two sets of cylinders (1) to reciprocate.

8. The compressor as claimed in claim 7, characterized in that, The drive mechanism (4) includes a crankshaft (402) rotatably mounted on the support frame (2) and a motor (401) fixedly mounted on the support frame (2) for driving the crankshaft (402) to rotate; each set of pistons (107) is fixedly connected to a slide rod (405) on the rear side, the slide rod (405) penetrates the rear side wall of the outer shell (101), each set of slide rods (405) is fixedly connected to a slider (404) at the end away from the piston (107), each set of sliders (404) is movably connected to a connecting rod (403) on the side away from the slide rod (405), and the other end of each set of connecting rods (403) is rotatably connected to the crankshaft (402).

9. The compressor as claimed in claim 8, characterized in that, Each set of the outer shell (101) is fixedly provided with a support box plate (5) on the rear side, and a sliding sleeve (406) is fixedly provided on the support box plate (5). The sliding rod (405) slides through the support box plate (5), and the slider (404) is in movable cooperation with the sliding sleeve (406).

10. The compressor as claimed in claim 8, characterized in that, The support frame (2) is fixedly equipped with a protective cover that covers the outside of the crankshaft (402), connecting rod (403), slider (404) and sliding sleeve (406).

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