Improved air cylinder of carbon dioxide compressor

Abstract

The improved air cylinder of the carbon dioxide compressor comprises a machine base, an air cylinder body and a motor, a supporting plate is arranged on one side of the machine base, a double-rod hydraulic cylinder is arranged in the middle of the supporting plate, installation boxes are arranged on the left side and the right side of the supporting plate respectively, and two piston rods of the double-rod hydraulic cylinder face the two installation boxes respectively and are fixedly connected with vertical plates. A plurality of inserting rods are fixedly arranged on the side, close to the corresponding mounting box, of the vertical plate, the top of the mounting box is open, and first through holes are formed in the positions, corresponding to the inserting rods, of the left side and the right side of the mounting box correspondingly; the two fixing plates are inserted into the two mounting boxes respectively, second through holes are formed in the positions, corresponding to the first through holes, of the fixing plates, the vertical plates abut against the outer side portions of the corresponding mounting boxes, and the inserting rods penetrate through the corresponding first through holes and the second through holes to the other sides of the mounting boxes. The air cylinder body can be quickly disassembled, assembled and replaced, the stability of the air cylinder body is enhanced, and the air cylinder is more convenient and practical.

Description

Technical Field

[0001] The utility model belongs to the technical field of carbon dioxide compressors, and in particular relates to an improved cylinder of a carbon dioxide compressor. Background Art

[0002] A carbon dioxide compressor is a compressor used to pressurize and transport carbon dioxide gas. It is mainly used in urea synthesis units. This is a new series of subcritical carbon dioxide compressors designed to improve the standards of pressure vessels, especially when the system is in a state of long-term stagnation. Common carbon dioxide compressors are mainly composed of a motor, a compressor body, an exhaust valve, an intake valve, a mechanical seal, and a cooling system. The compressor body mainly includes a cylinder, which is equipped with a piston, a crankshaft, and other components. When in use, low-pressure carbon dioxide gas is sucked into the cylinder, the motor drives the crankshaft to rotate, and the crankshaft drives the piston to rise and fall, thereby continuously squeezing and discharging the gas. However, in actual use, the cylinder as a whole is usually welded or bolted to the base, and it is inconvenient to disassemble and assemble the crankshaft and the output shaft of the motor, resulting in the inability to quickly disassemble and assemble the cylinder part when it needs to be repaired and replaced separately. The use is not flexible and convenient, and the cylinder is not stable enough when working, which needs to be improved. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide an improved cylinder for a carbon dioxide compressor, which can realize quick disassembly, assembly and replacement of the entire cylinder and enhance the stability of the cylinder to solve the above-mentioned problems.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is: an improved cylinder of a carbon dioxide compressor, comprising a machine base, a cylinder body and a motor, a support plate is fixedly provided on one side of the machine base, a single-rod hydraulic cylinder is fixedly provided on the other side, a double-rod hydraulic cylinder is horizontally fixedly provided on the middle part of the support plate, and mounting boxes are fixedly provided on both the left and right sides, the two piston rods of the double-rod hydraulic cylinder are respectively facing the two mounting boxes and are fixedly connected with vertical plates, a plurality of plug rods distributed in a rectangular array are fixedly provided on one side of the vertical plate close to the corresponding mounting box, the top of the mounting box is open, and first through holes are provided at positions corresponding to the plug rods on the left and right sides, the cylinder body comprises a lower cylinder body and an upper cylinder body connected to the top of the lower cylinder body, fixed plates are fixedly provided on the left and right sides of the outer bottom of the lower cylinder body, the two fixed plates are respectively inserted into the two mounting boxes, and second through holes are provided at positions corresponding to the first through holes on the fixed plates, the vertical plates are pressed against the outer side of the corresponding mounting boxes, the plug rods penetrate the corresponding first through holes and second through holes to the other side of the mounting box, the The support plate, the mounting box and the fixing plate are all made of foam aluminum plates. A crankshaft is horizontally and rotatably arranged in the lower cylinder body. One end of the crankshaft extends out of the lower cylinder body and a cross-shaped blind groove is coaxially provided on the end surface of the end. A limiting disk is provided on the side fixing sleeve of the end. A plurality of blind holes evenly spaced at circumferential intervals are provided on the side of the limiting disk away from the lower cylinder body. The piston rod of the single-rod hydraulic cylinder faces the lower cylinder body and is fixedly connected to the motor. A rotating disk is coaxially and fixedly connected to the output shaft of the motor. The center of the rotating disk on the side away from the motor is coaxially A cross-shaped plug block is fixedly provided, and a plurality of plug posts are fixedly provided on the circumferential side. The rotating disk abuts against one end of the crankshaft extending out of the lower cylinder body, the cross-shaped plug block is plugged into the cross-shaped blind groove, and the plug posts correspond to and are plugged into the blind holes one by one. A connecting rod is sleeved on the connecting rod journal of the crankshaft, and a piston is provided in the upper cylinder body for sliding up and down. The top of the connecting rod is hinged to the bottom of the piston, and an intake check valve and an exhaust check valve are provided on the top of the upper cylinder body. The intake check valve and the exhaust check valve are both connected with hoses, and quick connectors are provided at the tail ends of the two hoses.

[0005] Preferably, the fixing plate is matched with the corresponding installation box.

[0006] Preferably, the insertion rod is matched with the corresponding first through hole and second through hole.

[0007] Preferably, the cross-shaped plug block is matched with the cross-shaped blind groove.

[0008] Preferably, the plug post is matched with the corresponding blind hole.

[0009] Preferably, the motor is fixedly mounted on a support base made of foam aluminum material.

[0010] Preferably, a sliding block is fixedly provided at the bottom of the support seat, and a matching sliding groove is provided on the top of the machine seat corresponding to the sliding block, and the sliding block is slidably arranged in the sliding groove.

[0011] The beneficial effect of the utility model is that when in use, the installation of the cylinder body is completed first, specifically: first align the two fixing plates on the cylinder body with the two installation boxes and insert them in place, then operate the double-rod hydraulic cylinder to extend its two piston rods, drive the vertical plate to press against the corresponding outer side of the installation box, so that the insertion rod can penetrate the corresponding first through hole and second through hole to the other side of the installation box, and the fixing plate can be inserted and fixed, thereby achieving effective fixed installation of the cylinder body, and the installation is stable and does not affect subsequent use. Then, align the cross-shaped blind groove on the crankshaft with the cross-shaped plug block, and then operate the single-rod hydraulic cylinder to extend its piston rod, so that the motor can be driven to move toward the cylinder body until the rotating disk presses against the crankshaft, so that the cross-shaped plug block is inserted into the cross-shaped slot at this time, and the plug column is inserted into the corresponding blind hole at this time, so that the transmission connection between the motor and the crankshaft can be completed, so that in subsequent work, the crankshaft can be driven to rotate synchronously through the operation of the motor. Next, use the quick connectors on the two hoses to connect the two hoses to the existing intake and exhaust pipes on the whole machine, and then you can start the compression work;

[0012] During compression, the motor runs, driving the crankshaft to rotate. Driven by the connecting rod, the rotation of the crankshaft can be converted into the up and down movement of the piston, causing the piston to slide up and down in the upper cylinder body. When the piston slides down, it can inhale carbon dioxide gas through the intake check valve. When the piston slides up, it can squeeze the inhaled carbon dioxide gas and discharge the pressurized carbon dioxide gas through the exhaust check valve, thereby achieving the compression of carbon dioxide gas. During the process, since the support plate, mounting box and fixing plate are all made of foamed aluminum, and foamed aluminum is an existing material with high damping, shock absorption and energy absorption characteristics, it can play a good role in buffering and shock absorption for the entire cylinder body, which is more conducive to the smooth operation of the cylinder body and more practical. When the cylinder body needs to be repaired or replaced, it is only necessary to disconnect the connection between the two hoses and the corresponding pipelines through the quick connector in the shutdown state, and then operate the single-rod hydraulic cylinder to retract its piston rod and drive the motor to return to its original position, thereby disconnecting the transmission connection between the crankshaft and the motor. Then, operate the double-rod hydraulic cylinder again to retract its two piston rods and drive the vertical plate to return until the plug rod is withdrawn from the installation box, thereby releasing the plug-in lock of the fixed plate, and finally pulling out the fixed plate, so that the original cylinder body can be removed separately for maintenance and other operations. After that, take out the new cylinder body, install and connect it as described above, and use it. In this way, the cylinder body can be quickly disassembled and assembled, and it is more convenient to perform separate repair and replacement of the cylinder body, making the overall use more flexible, convenient, and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a main structural schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the main structure of the support plate of the utility model;

[0015] Figure 3 This is a schematic diagram of the main structure of the cylinder of the utility model;

[0016] Figure 4 This is a schematic diagram of the main structure of the utility model when the fixing plate is connected to the installation box;

[0017] Figure 5 It is a right side structural schematic diagram of the crankshaft of the utility model;

[0018] Figure 6 This is a schematic diagram of the main structure of the rotating disk of the utility model;

[0019] Figure 7 It is a left-side structural schematic diagram of the rotating disk of the utility model.

[0020] The numbers in the figure are: 1 is a machine base, 2 is a cylinder body, 3 is a motor, 4 is a support plate, 5 is a single-rod hydraulic cylinder, 6 is a double-rod hydraulic cylinder, 7 is a mounting box, 8 is a vertical plate, 9 is a plug rod, 10 is a first through hole, 11 is a lower cylinder body, 12 is an upper cylinder body, 13 is a fixed plate, 14 is a second through hole, 15 is a crankshaft, 16 is a cross-shaped blind groove, 17 is a limit plate, 18 is a blind hole, 19 is a rotating plate, 20 is a cross-shaped plug block, 21 is a plug column, 22 is a connecting rod, 23 is a piston, 24 is an intake check valve, 25 is an exhaust check valve, 26 is a hose, 27 is a quick connector, 28 is a support seat, 29 is a slider, and 30 is a slide groove. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods:

[0022] like Figures 1 to 7As shown, an improved cylinder of a carbon dioxide compressor includes a base 1, a cylinder body 2 and a motor 3. A support plate 4 is fixed on one side of the base 1, and a single-rod hydraulic cylinder 5 is fixed on the other side. A double-rod hydraulic cylinder 6 is fixed horizontally on the middle of the support plate 4, and mounting boxes 7 are fixed on both the left and right sides. The two piston rods of the double-rod hydraulic cylinder 6 face the two mounting boxes 7 respectively and are fixedly connected to vertical plates 8. A plurality of plug rods 9 distributed in a rectangular array are fixed on one side of the vertical plate 8 close to the corresponding mounting box 7. The top of the mounting box 8 is open, and first through holes 10 are opened at positions on the left and right sides corresponding to the plug rods 9. The cylinder body 2 includes a lower cylinder body 11 and an upper cylinder body 12 connected to the top of the lower cylinder body 11. A fixing plate 13 is fixed on both sides of the outer bottom of the lower cylinder body 11. The two fixing plates 13 are respectively inserted into the two installation boxes 7 and the fixing plates 13 are provided with second through holes 14 at positions corresponding to the first through holes 10. The vertical plate 8 is pressed against the outer side of the corresponding installation box 7, and the insertion rod 9 passes through the corresponding first through hole 10 and the second through hole 14 to the other side of the installation box 7. The support plate 4, the installation box 7 and the fixing plate 13 are all made of foam aluminum plates. A crankshaft 15 is horizontally and rotatably arranged in the lower cylinder body 11. One end of the crankshaft 15 extends out of the lower cylinder body 11 and a cross-shaped blind groove 16 is coaxially provided on the end surface of the end. A limit plate 17 is provided on the side fixed sleeve of the end. A plurality of blind holes 18 evenly spaced at circumferential intervals are provided on the side of the limit plate 17 away from the lower cylinder body 11. The piston rod of the single-rod hydraulic cylinder 5 faces the lower cylinder body 11 and is fixedly connected to the motor 3. The output shaft of the motor 3 is coaxially fixedly connected to a rotating disk 19. A cross-shaped plug block 20 is coaxially fixed to the center of the rotating disk 19 on the side away from the motor 3, and a plurality of plug posts 21 are fixed on the peripheral side. The rotating disk 19 abuts against the end of the crankshaft 15 extending out of the lower cylinder body 11. The cross-shaped plug block 20 is plugged into the cross-shaped blind groove 16. The plug posts 21 correspond to and are plugged into the blind holes 18 one by one. A connecting rod 22 is sleeved on the connecting rod journal of the crankshaft 15. A piston 23 is slidably provided in the upper cylinder body 12. The top of the connecting rod 22 is hinged to the bottom of the piston 23. An intake check valve 24 and an exhaust check valve 25 are provided at the top of the upper cylinder body 12. A hose 26 is connected to the intake check valve 24 and the exhaust check valve 25. The tail ends of the two hoses 26 are provided with quick connectors 27.

[0023] When in use, first complete the installation of the cylinder body 2, specifically: first align the two fixing plates 13 on the cylinder body 2 with the two mounting boxes 7 and plug them into place, then operate the double-rod hydraulic cylinder 6 to extend its two piston rods, driving the vertical plate 8 to press against the corresponding outer side of the mounting box 7, so that the insertion rod 9 can now pass through the corresponding first through hole 10 and second through hole 14 to the other side of the mounting box 7, and the fixing plate 13 can be plugged and fixed, thereby achieving effective fixed installation of the cylinder body 2, and the installation is stable and does not affect subsequent use. Then, align the cross-shaped blind slot 16 on the crankshaft 15 with the cross-shaped plug 20, and then operate the single-rod hydraulic cylinder 5 to extend its piston rod, which can drive the motor 3 to move toward the cylinder body 2 until the rotating disk 19 presses against the crankshaft 15, so that the cross-shaped plug 20 is inserted into the cross-shaped slot 16, and the plug post 21 is inserted into the corresponding blind hole 18, so that the transmission connection between the motor 3 and the crankshaft 15 can be completed, so that in subsequent work, the operation of the motor 3 can drive the crankshaft 15 to rotate synchronously. Next, use the quick connector 27 on the two hoses 26 to connect the two hoses 26 to the existing intake and exhaust pipes on the whole machine, and then the compression work can be carried out;

[0024] During compression, the motor 3 runs, driving the crankshaft 15 to rotate. Driven by the connecting rod 22, the rotation of the crankshaft 15 can be converted into the up and down movement of the piston 23, so that the piston 23 slides up and down in the upper cylinder body 12. When the piston 23 slides down, it can inhale carbon dioxide gas through the intake check valve 24. When the piston slides up, it can squeeze the inhaled carbon dioxide gas and discharge the pressurized carbon dioxide gas through the exhaust check valve 25, thereby realizing the compression of carbon dioxide gas. During the process, since the support plate 4, the installation box 7 and the fixing plate 13 are all made of foamed aluminum, and foamed aluminum is an existing material with high damping, shock absorption and energy absorption characteristics, it can play a good role in buffering and shock absorption for the entire cylinder body 2, which is more conducive to the smooth operation of the cylinder body 2 and more practical. When the cylinder body 2 needs to be repaired and replaced, it is only necessary to disconnect the connection between the two hoses 26 and the corresponding pipelines through the quick connector 27 in the shutdown state, and then operate the single-rod hydraulic cylinder 5 to retract its piston rod and drive the motor 3 to return to its original position, so as to disconnect the transmission connection between the crankshaft 15 and the motor 3, and then operate the double-rod hydraulic cylinder 6 again to retract its two piston rods and drive the vertical plate 8 to return until the plug rod 9 is withdrawn from the installation box 7, so as to release the plug-in lock of the fixed plate 13, and finally pull out the fixed plate 13, so as to remove the original cylinder body 2 separately for maintenance and other operations. After that, take out the new cylinder body 2, install and connect it as described above, and use it. In this way, the cylinder body 2 can be quickly disassembled and assembled, and it is more convenient to perform separate repair and replacement of the cylinder body 2, and the overall use is more flexible, convenient and practical.

[0025] In this embodiment, the fixing plate 13 is matched with the corresponding installation box 7 to ensure that the fixing plate 13 is smoothly plugged into place, thereby realizing the positioning installation of the cylinder body 2.

[0026] In this embodiment, the insertion rod 9 is matched with the corresponding first through hole 10 and second through hole 14 to ensure that the insertion rod 9 is smoothly inserted into place, thereby realizing the insertion and fixed installation of the cylinder body 2.

[0027] In this embodiment, the cross-shaped plug block 20 is matched with the cross-shaped blind groove 16 to ensure that the cross-shaped plug block 20 is smoothly plugged into place, thereby realizing the transmission connection between the motor 3 and the crankshaft 15 .

[0028] In this embodiment, the plug post 21 is matched with the corresponding blind hole 18 to ensure that the plug post 21 is smoothly plugged into place, thereby realizing the transmission connection between the motor 3 and the crankshaft 15.

[0029] In this embodiment, the motor 3 is fixedly mounted on a support base 28 made of foam aluminum material, which can effectively reduce vibration and protect the motor 3 and improve the stability of the motor 3 during operation.

[0030] In this embodiment, a slider 29 is fixedly provided at the bottom of the support seat 28, and a matching slide groove 30 is opened on the top of the base 1 corresponding to the slider 29. The slider 29 is slidably arranged in the slide groove 30 to effectively guide and limit the movement of the motor 3.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An improved cylinder for a carbon dioxide compressor, comprising a base, a cylinder body and a motor, characterized in that: A support plate is fixed on one side of the machine base, and a single-rod hydraulic cylinder is fixedly mounted on the other side. A double-rod hydraulic cylinder is horizontally fixedly mounted on the middle part of the support plate, and mounting boxes are fixed on the left and right sides. The two piston rods of the double-rod hydraulic cylinder face the two mounting boxes respectively and are fixedly connected with vertical plates. A plurality of plug rods distributed in a rectangular array are fixed on one side of the vertical plate close to the corresponding mounting box. The top of the mounting box is open, and first through holes are opened at positions corresponding to the plug rods on the left and right sides. The cylinder body includes a lower cylinder body and an upper cylinder body connected to the top of the lower cylinder body. Fixed plates are fixed on the left and right sides of the outer bottom of the lower cylinder body. The two fixed plates are respectively inserted into the two mounting boxes and second through holes are opened at positions corresponding to the first through holes on the fixed plates. The vertical plate is pressed against the outer side of the corresponding mounting box, and the plug rod passes through the corresponding first through hole and the second through hole to the other side of the mounting box. The support plate, the mounting box and the fixed plate are all made of foam aluminum plate. The cam is provided with a crankshaft which is flat and rotatable, one end of the crankshaft extends out of the lower cylinder body and the end surface of the end is coaxially provided with a cross-shaped blind groove, and the side fixed sleeve of the end is provided with a limit plate, and the side of the limit plate away from the lower cylinder body is provided with a plurality of blind holes evenly distributed at circumferential intervals, the piston rod of the single-rod hydraulic cylinder faces the lower cylinder body and is fixedly connected to the motor, the output shaft of the motor is coaxially fixedly connected to a rotating disk, the center of the rotating disk away from the motor is coaxially fixed with a cross-shaped plug block, and the circumferential side is fixed with a plurality of plug columns, the rotating disk abuts against the end of the crankshaft extending out of the lower cylinder body, the cross-shaped plug block is plugged into the cross-shaped blind groove, and the plug columns correspond to and are plugged into the blind holes one by one, a connecting rod is sleeved on the connecting rod journal of the crankshaft, a piston is provided on the upper cylinder body for sliding up and down, the top of the connecting rod is hinged with the bottom of the piston, an intake check valve and an exhaust check valve are provided on the top of the upper cylinder body, and hoses are connected to the intake check valve and the exhaust check valve, and quick connectors are provided at the tail ends of the two hoses.

2. The improved cylinder of the carbon dioxide compressor according to claim 1, characterized in that: The fixing plate is matched with the corresponding installation box.

3. The improved cylinder of the carbon dioxide compressor according to claim 1, characterized in that: The insertion rod is matched with the corresponding first through hole and the second through hole.

4. The improved cylinder of the carbon dioxide compressor according to claim 1, characterized in that: The cross-shaped insert block is matched with the cross-shaped blind groove.

5. The improved cylinder of the carbon dioxide compressor according to claim 1, characterized in that: The plug post is matched with the corresponding blind hole.

6. The improved cylinder of the carbon dioxide compressor according to claim 1, characterized in that: The motor is fixedly mounted on a support base made of foam aluminum material.

7. The improved cylinder of the carbon dioxide compressor according to claim 6, characterized in that: A sliding block is fixedly arranged at the bottom of the support seat, and a matching sliding groove is arranged on the top of the machine seat corresponding to the sliding block, and the sliding block is slidably arranged in the sliding groove.

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