Square casting middle connecting cylinder

Abstract

The utility model relates to the technical field of compressors, in particular to a square casting middle connecting cylinder which comprises a connecting cylinder body and a flow dividing disc, an emptying opening is formed in one side of the upper end of the inner wall of the connecting cylinder body, the flow dividing disc is arranged on one side of the inner wall of the connecting cylinder body, and a third pipe connector is arranged on the outer wall of the flow dividing disc. The third pipe connector is connected with a nitrogen charging pipe, an exhaust pipe, a water inlet pipe, an oil injection pipe and a water outlet pipe, the connecting cylinder body and the connecting flanges on the two sides are pulled through the first reinforcing rib and the second reinforcing rib respectively, the rigidity of the connecting cylinder body can be enhanced, the alternating load resistance is improved, and the vibration intensity of a unit is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a square casting middle cylinder. Background Art

[0002] The intermediate sleeve in large reciprocating piston compressors is a crucial component connecting the cylinders, transmitting force and gas flow. While a relatively small component, the intermediate sleeve plays a crucial role in the design and operation of these compressors. It primarily connects the two cylinders in the compressor, ensuring proper alignment and a secure connection. During operation, the intermediate sleeve must withstand and transmit tremendous gas pressure and reciprocating inertial forces. These forces are transmitted through the piston to the sleeve, and then to the entire machine structure, ensuring stable operation.

[0003] Although the intermediate connecting barrel in the existing technology has many benefits, it still has the following problems: the traditional circular connecting barrel has insufficient rigidity, which increases the vibration of the unit and may cause fracture accidents in severe cases, thus affecting the service life of the equipment. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a square cast middle cylinder.

[0005] The technical solution adopted by the utility model to solve its technical problems is a square cast middle connecting sleeve, which includes a connecting sleeve body and a diverter plate. A vent is opened on one side of the upper end of the inner wall of the connecting sleeve body, and a diverter plate is provided on one side of the inner wall of the connecting sleeve body. A third pipe joint is provided on the outer wall of the diverter plate, and the third pipe joint is respectively connected to a nitrogen filling pipe, an exhaust pipe, a water inlet pipe, an oil filling pipe and a water outlet pipe.

[0006] By adopting the above technical solution, the diverter disc ensures the separate flow of liquid and gas, and can maintain the position of the third pipe joint to ensure the stability of medium transportation.

[0007] Specifically, a shell is provided on one side of the inner wall of the connecting tube body, an oil scraper is provided on one side of the inner wall of the shell, and studs are symmetrically installed on the outer wall of the connecting tube body.

[0008] By adopting the above technical solution, the oil scraper cooperates with the shell to prevent the lubricating oil in the crankcase from entering the cylinder, avoiding the process gas medium being contaminated by the lubricating oil, and the connecting sleeve body can be connected to the external equipment through the stud.

[0009] Specifically, flanges are provided on the upper and lower outer walls of the connecting tube body, and the flanges correspond to the positions of the vent and the first pipe joint respectively.

[0010] By adopting the above technical solution, the external equipment can be connected to the vent and the first pipe joint respectively through the flange, thereby maintaining internal communication of the connecting tube body and allowing the air in the inner cavity of the connecting tube body to be discharged.

[0011] Specifically, connecting flanges are welded to the outer walls on both sides of the connecting tube body, and second reinforcing ribs distributed in a circular array are installed on the outer wall of the connecting tube body, and the second reinforcing ribs are connected to the outer wall of the connecting flange. The upper and lower outer walls of the connecting tube body are installed with first reinforcing ribs distributed equidistantly and in parallel, and the first reinforcing ribs are connected to the outer wall of the connecting flange.

[0012] By adopting the above technical solution, the connecting tube body is connected to the cylinders on both sides through the connecting flange, and a sealing gasket is provided at the connection between the connecting flange and the cylinder to maintain the connection sealing between the connecting flange and the cylinders on both sides. The first reinforcing rib and the second reinforcing rib can increase the overall stiffness of the connecting tube body.

[0013] Specifically, first pipe joints are provided on both sides of the lower end of the inner wall of the connecting tube body, and the two first pipe joints are respectively connected to the nitrogen filling pipe and the exhaust pipe.

[0014] By adopting the above technical solution, the external air pump can deliver nitrogen to the nitrogen protection device through the first pipe joint and the nitrogen filling pipe. The leaked air inside the device can be discharged through the exhaust pipe.

[0015] Specifically, the upper and lower ends of the inner wall of the connecting tube body are both provided with second pipe joints, and a spherical sleeve is provided on one side of the inner wall of the second pipe joint. The second pipe joint is connected to the water inlet pipe, oil filling pipe and water outlet pipe respectively through the spherical sleeve.

[0016] By adopting the above technical solution, the external equipment can be connected to the water inlet pipe, oil filling pipe and water outlet pipe respectively through the second pipe joint, so as to realize oil filling and water injection. The oil can be transported through the oil filling pipe, and the coolant circulates through the water inlet pipe and the water outlet pipe to regulate the operating temperature of the equipment.

[0017] Specifically, a drainage pipe is plugged and installed on one side of the lower end of the inner wall of the connecting tube body, and a ball valve is provided on one side of the outer wall of the drainage pipe.

[0018] By adopting the above technical solution, the liquid inside the connecting tube body can be discharged through the drain pipe, and the ball valve controls the controlled communication of the drain pipe, thereby controlling the controlled discharge of liquid from the drain pipe.

[0019] Specifically, baffles are provided on the outer walls of both sides of the connecting tube body, bolts distributed in a rectangular array are provided inside the baffles, and the baffles are connected to the connecting tube body through the bolts.

[0020] By adopting the above technical solution, the baffle shields both sides of the connecting tube body, and the position of the baffle on the outside of the connecting tube body is kept stable by the bolts.

[0021] Beneficial effects of the utility model:

[0022] (1) The square cast middle connecting sleeve described in the present invention, the oil scraper cooperates with the shell to prevent the lubricating oil in the crankcase from entering the cylinder, so as to avoid the process gas medium being contaminated by the lubricating oil. The drain pipe can discharge the liquid inside the inner cavity of the connecting sleeve body, and the gas in the inner cavity of the connecting sleeve body can be discharged through the vent port, so that the inner cavity is always kept at normal pressure, which can avoid accidents caused by increased pressure in the inner cavity. Nitrogen is pressurized and transported to the nitrogen filling pipe by an external air pump, so that nitrogen is transported to the inside of the nitrogen protection device, which can prevent flammable, explosive or toxic media in the cylinder from entering the crankcase. The oil flows through the oil filling pipe, and the coolant flows through the water inlet pipe and the water outlet pipe to cool the equipment and maintain the normal operating temperature of the equipment.

[0023] (2) The square cast middle connecting tube described in the present invention can enhance the rigidity of the connecting tube body and improve the ability to resist alternating loads and reduce the vibration intensity of the unit by respectively pulling the connecting tube body and the connecting flanges on both sides through the first reinforcing rib and the second reinforcing rib. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a schematic cross-sectional view of the connecting tube body structure of the present utility model;

[0026] Figure 2 This is a side sectional view of the connecting tube body structure of the present utility model;

[0027] Figure 3 This is a partially enlarged schematic diagram of the oil filling pipe structure of the utility model;

[0028] Figure 4 This is a partially enlarged schematic diagram of the nitrogen filling pipe structure of the present invention;

[0029] Figure 5 This is a partially enlarged schematic diagram of the water outlet pipe structure of the present utility model;

[0030] Figure 6 This is a partially enlarged schematic diagram of the water outlet pipe structure of the present utility model;

[0031] Figure 7 It is a partially enlarged schematic diagram of the oil filling pipe structure of the present utility model.

[0032] In the figure: 1. Connector body; 2. Shell; 3. Oil scraper; 4. Stud; 5. Nitrogen charging pipe; 6. Exhaust pipe; 7. Water inlet pipe; 8. Oil filling pipe; 9. Water outlet pipe; 10. Connecting flange; 11. Vent; 12. Diverter plate; 13. Baffle; 14. Drain pipe; 15. Flange; 16. First pipe joint; 17. Second pipe joint; 18. Spherical sleeve; 19. Third pipe joint; 20. First reinforcing rib; 21. Second reinforcing rib. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0034] In order to save manpower and improve efficiency, as an embodiment of the present invention, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 As shown, the square casting middle connecting sleeve described in the present invention includes a connecting sleeve body 1 and a diverter plate 12. A vent 11 is opened on one side of the upper end of the inner wall of the connecting sleeve body 1, and a diverter plate 12 is provided on one side of the inner wall of the connecting sleeve body 1. A third pipe joint 19 is provided on the outer wall of the diverter plate 12. The third pipe joint 19 is respectively connected to the nitrogen filling pipe 5, the exhaust pipe 6, the water inlet pipe 7, the oil injection pipe 8 and the water outlet pipe 9. The nitrogen filling pipe 5, the exhaust pipe 6, the water inlet pipe 7, the oil injection pipe 8 and the water outlet pipe 9 are all designed with copper pipe material.

[0035] When in use, the diverter plate 12 ensures the separate flow of liquid and gas, and can maintain the position of the third pipe joint 19 to ensure the stability of medium transportation. The use size of the third pipe joint 19 is compatible with the diameters of the nitrogen filling pipe 5, the exhaust pipe 6, the water inlet pipe 7, the oil filling pipe 8 and the water outlet pipe 9.

[0036] For scraping oil, for example, Figure 1 As shown, a shell 2 is provided on one side of the inner wall of the connecting tube body 1, an oil scraper 3 is provided on one side of the inner wall of the shell 2, and studs 4 are symmetrically installed on the outer wall of the connecting tube body 1.

[0037] When in use, the oil scraper 3 cooperates with the shell 2 to prevent the lubricating oil in the crankcase from entering the cylinder, thereby avoiding contamination of the process gas medium by the lubricating oil, and the connecting tube body 1 can be connected to the external equipment through the stud 4, and there is a rubber plate between the shell 2 and the connecting tube body 1, and the rubber plate is designed with oil-resistant asbestos rubber plate material.

[0038] In order to connect with external devices, for example, Figure 1As shown, flanges 15 are provided on the upper and lower outer walls of the connecting tube body 1, and the flanges 15 correspond to the positions of the vent 11 and the first pipe joint 16 respectively.

[0039] When in use, the external device can be connected to the vent 11 and the first pipe joint 16 respectively through the flange 15, so as to maintain internal communication of the connecting tube body 1 and allow the air in the inner cavity of the connecting tube body 1 to be discharged.

[0040] To connect with the cylinder, for example, Figure 1 As shown, connecting flanges 10 are welded to the outer walls on both sides of the connecting tube body 1, and second reinforcing ribs 21 distributed in a circular array are installed on the outer wall of the connecting tube body 1. The number of the second reinforcing ribs 21 is designed to be 12, and the second reinforcing ribs 21 are connected to the outer wall of the connecting flange 10. The upper and lower outer walls of the connecting tube body 1 are installed with first reinforcing ribs 20 distributed in parallel at equal distances. The first reinforcing ribs 20 are arranged up and down, and 5 are designed on the upper and lower sides. The connecting flange 10 located on the left side of the connecting tube body 1 is designed in a square shape, and the first reinforcing ribs 20 are connected to the outer wall of the connecting flange 10.

[0041] When in use, the connecting tube body 1 is connected to the cylinders on both sides through the connecting flange 10, and there is a sealing gasket at the connection between the connecting flange 10 and the cylinders on both sides to maintain the connection sealing between the connecting flange 10 and the cylinders on both sides. The first reinforcing rib 20 and the second reinforcing rib 21 can increase the overall stiffness of the connecting tube body 1.

[0042] For gas delivery, for example, Figure 1 As shown, first pipe joints 16 are provided on both sides of the lower end of the inner wall of the connecting tube body 1, and the two first pipe joints 16 are connected to the nitrogen filling pipe 5 and the exhaust pipe 6 respectively.

[0043] When in use, the external air pump can deliver nitrogen to the nitrogen protection device through the first pipe joint 16 and the nitrogen filling pipe 5. The leaked air inside the device can be discharged through the exhaust pipe 6.

[0044] For the flow of oil and coolant, for example, Figure 1 As shown, a second pipe joint 17 is provided at the upper and lower ends of the inner wall of the connecting tube body 1, and a spherical sleeve 18 is provided on one side of the inner wall of the second pipe joint 17. The second pipe joint 17 is connected to the water inlet pipe 7, the oil filling pipe 8 and the water outlet pipe 9 respectively through the spherical sleeve 18.

[0045] When in use, the external equipment can be connected to the water inlet pipe 7, the oil filling pipe 8 and the water outlet pipe 9 respectively through the second pipe joint 17, so as to realize oil and water injection. The oil can be transported through the oil filling pipe 8, and the coolant circulates through the water inlet pipe 7 and the water outlet pipe 9 to adjust the operating temperature of the equipment. The second pipe joint 17 is fixed by nut extrusion, and a sealing gasket is provided therein to contact the outer wall of the connecting tube body 1 to seal the second pipe joint 17 and the connecting tube body 1. The spherical sleeve 18 is connected to the oil filling pipe 8 and the water outlet pipe 9 respectively by nuts.

[0046] In order to discharge the waste liquid, for example, Figure 1 As shown, a drain pipe 14 is plugged and installed on one side of the lower end of the inner wall of the connecting tube body 1, and a ball valve is provided on the outer wall of one side of the drain pipe 14.

[0047] When in use, the liquid inside the connecting tube body 1 can be discharged through the drain pipe 14 , and the ball valve controls the drain pipe 14 to be connected in a controlled manner, thereby controlling the drain pipe 14 to discharge liquid in a controlled manner.

[0048] In order to cover the connecting tube body 1, for example, Figure 2 As shown, baffles 13 are provided on the outer walls of both sides of the connecting tube body 1, and bolts distributed in a rectangular array are provided inside the baffles 13, and the baffles 13 are connected to the connecting tube body 1 through the bolts.

[0049] When in use, the baffle 13 blocks both sides of the connecting tube body 1 and is kept stable at the outside of the connecting tube body 1 by bolts. There is a gasket between the baffle 13 and the connecting tube body 1, and the gasket is designed with asbestos rubber sheet material.

[0050] When the utility model is in use, the connecting tube body 1 is connected to the external cylinder through the connecting flange 10, so as to keep the position of the connecting tube body 1 between the two cylinders in the compressor stable;

[0051] The oil scraper 3 cooperates with the housing 2 to prevent the lubricating oil in the crankcase from entering the cylinder. The drain pipe 14 can drain the liquid inside the inner cavity of the connecting tube body 1, and the ball valve controls the controlled connection of the drain pipe 14. The gas in the inner cavity of the connecting tube body 1 can be discharged through the vent 11;

[0052] Nitrogen is pressurized by an external air pump and transported to the nitrogen filling pipe 5, so that the nitrogen is transported to the interior of the nitrogen protection device, the oil flows through the oil filling pipe 8, and the coolant flows through the water inlet pipe 7 and the water outlet pipe 9.

[0053] The first reinforcing rib 20 and the second reinforcing rib 21 respectively pull the connecting sleeve body 1 and the connecting flanges 10 on both sides, thereby enhancing the rigidity of the connecting sleeve body 1.

[0054] It should be noted that the present invention is a square cast intermediate sleeve. The components in the present invention are all components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0055] 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 illustrative of the principles of 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 are intended to 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. Square casting intermediate sleeve, characterized by: The invention comprises a connecting tube body (1) and a diverter disc (12), wherein a vent (11) is provided on one side of the upper end of the inner wall of the connecting tube body (1), the diverter disc (12) is provided on one side of the inner wall of the connecting tube body (1), and a third pipe joint (19) is provided on the outer wall of the diverter disc (12), and the third pipe joint (19) is respectively connected to a nitrogen filling pipe (5), an exhaust pipe (6), a water inlet pipe (7), an oil filling pipe (8), and a water outlet pipe (9).

2. The square casting intermediate sleeve according to claim 1, characterized in that: A shell (2) is provided on one side of the inner wall of the connecting tube body (1), an oil scraper (3) is provided on one side of the inner wall of the shell (2), and stud bolts (4) are symmetrically installed on the outer wall of the connecting tube body (1).

3. The square casting intermediate sleeve according to claim 1, characterized in that: Flanges (15) are provided on both upper and lower outer walls of the connecting tube body (1), and the flanges (15) correspond to the positions of the vent (11) and the first pipe joint (16) respectively.

4. The square casting intermediate sleeve according to claim 1, characterized in that: The outer walls on both sides of the connecting tube body (1) are welded with connecting flanges (10), the outer wall of the connecting tube body (1) is equipped with second reinforcing ribs (21) distributed in a circular array, and the second reinforcing ribs (21) are connected to the outer wall of the connecting flange (10), and the upper and lower outer walls of the connecting tube body (1) are equipped with first reinforcing ribs (20) distributed in parallel at equal distances, and the first reinforcing ribs (20) are connected to the outer wall of the connecting flange (10).

5. The square casting intermediate sleeve according to claim 1, characterized in that: First pipe joints (16) are provided on both sides of the lower end of the inner wall of the connecting tube body (1), and the two first pipe joints (16) are respectively connected to the nitrogen filling pipe (5) and the exhaust pipe (6).

6. The square casting intermediate sleeve according to claim 1, characterized in that: A second pipe joint (17) is provided at both the upper and lower ends of the inner wall of the connecting tube body (1), a spherical sleeve (18) is provided on one side of the inner wall of the second pipe joint (17), and the second pipe joint (17) is connected to the water inlet pipe (7), the oil filling pipe (8) and the water outlet pipe (9) respectively through the spherical sleeve (18).

7. The square casting intermediate sleeve according to claim 1, characterized in that: A drainage pipe (14) is plugged and installed on one side of the lower end of the inner wall of the connecting tube body (1), and a ball valve is provided on one side of the outer wall of the drainage pipe (14).

8. The square casting intermediate sleeve according to claim 1, characterized in that: Baffles (13) are provided on both sides of the outer walls of the connecting tube body (1), bolts distributed in a rectangular array are provided inside the baffles (13), and the baffles (13) are connected to the connecting tube body (1) via the bolts.

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