CN116557261B - Compression cylinder of circulating liquid seal compressor - Google Patents
Compression cylinder of circulating liquid seal compressor Download PDFInfo
- Publication number
- CN116557261B CN116557261B CN202310637815.XA CN202310637815A CN116557261B CN 116557261 B CN116557261 B CN 116557261B CN 202310637815 A CN202310637815 A CN 202310637815A CN 116557261 B CN116557261 B CN 116557261B
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- piston
- cylinder
- support ring
- gland
- groove
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- 239000007788 liquid Substances 0.000 title claims abstract description 134
- 230000006835 compression Effects 0.000 title claims abstract description 22
- 238000007906 compression Methods 0.000 title claims abstract description 22
- 210000004907 gland Anatomy 0.000 claims abstract description 74
- 238000001816 cooling Methods 0.000 claims abstract description 44
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 3
- 229910052755 nonmetal Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 23
- 230000001050 lubricating effect Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 7
- 239000007769 metal material Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 1
- 239000002608 ionic liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/125—Cylinder heads
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The invention relates to the technical field of circulating liquid seal compressors, in particular to a compression cylinder of a circulating liquid seal compressor. The outer surface of the supporting ring body is provided with a plurality of supporting ring grooves, the positions of the outer surface of the piston corresponding to each supporting ring groove are respectively provided with a piston ring groove, and each supporting ring groove is internally provided with a plurality of through holes which are communicated with the supporting ring grooves and the piston ring grooves. The axial center hole side wall of the gland body is provided with an annular cooling groove, a radial liquid inlet channel and a radial liquid outlet channel which are communicated with the annular cooling groove are arranged in the gland body, the radial liquid inlet channel is communicated with an axial liquid inlet channel which is arranged in the gland body, and the radial liquid outlet channel is communicated with an axial liquid outlet channel which is arranged in the gland body. The cooling effect of the cylinder body of the cylinder is improved, the lubricating and liquid sealing effects are improved, the cooling effect of the piston is improved, the piston can slide smoothly, the cooling effect of the piston rod and the cylinder gland is improved, and the normal work of the cylinder is ensured.
Description
Technical field:
the invention relates to the technical field of circulating liquid seal compressors, in particular to a compression cylinder of a circulating liquid seal compressor.
The background technology is as follows:
the circulating liquid seal compressor mainly drives a piston in a cylinder body of a cylinder to reciprocate through a driving mechanism to realize the pressurization of gas, the driving mechanism comprises a crankshaft connecting rod, hydraulic driving or motor driving and the like, and a compression medium contains various flammable and explosive dangerous gases and toxic gases. In the reciprocating motion process of the piston, sliding friction can occur between the piston and the cylinder body on the one hand, a large amount of heat is generated, and because the piston and the cylinder body are made of metal materials and are different in materials, heat can be transferred between the piston and the cylinder body, common metal materials are easy to deform after being heated, metal heating deformation amounts of different materials are different, so that the piston is easy to slide unsmooth, and even the situation of clamping occurs when serious. At present, although a technology of adding circulating liquid between a piston and a cylinder body exists, the sealing and lubrication functions are mainly realized, the cooling effect is very weak, and the cooling effect on the piston and the cylinder body cannot be achieved far. In addition, a structure that a plurality of supporting rings are additionally arranged on the outer side of the piston is also available at present, but the axial dimension of the existing supporting rings is short, and the existing supporting rings are only arranged at two ends and the middle part of the piston to play a role in guiding the piston and increasing the axial supporting force, and can not play a role in cooling. At present, no effective means is available for effectively achieving the purpose of cooling between the piston and the cylinder body.
In the reciprocating motion process of the piston, sliding friction can occur between the piston rod and the cylinder gland to generate a large amount of heat, and as the piston rod and the cylinder gland are made of metal materials and are different in materials, heat can be transferred between the piston rod and the cylinder gland, the metal materials are easy to deform after being heated, the metal heating deformation amounts of different materials are different, so that the piston rod is easy to slide unsmooth, and even the situation of clamping occurs when serious. At present, no effective means is available for effectively realizing the purpose of cooling between the piston rod and the cylinder gland. In addition, at present, the piston rod and the cylinder gland are generally sealed only through the sealing ring, so that the sealing ring is easy to wear and lose efficacy for a long time, and gas is leaked outwards from the position between the piston rod and the cylinder gland, so that the compression efficiency of the cylinder is affected.
In summary, the above-mentioned problems of the compression cylinder of the circulating liquid seal compressor have become a technical problem to be solved in industry.
The invention comprises the following steps:
the invention provides a compression cylinder of a circulating liquid seal compressor, which solves the problem that the piston motion is blocked caused by high-temperature deformation due to sliding friction between a piston and a cylinder body in the past, solves the problem that the sliding is unsmooth due to deformation caused by sliding friction heat generation between a piston rod and a cylinder gland in the past, and solves the problem that the sealing ring between the piston rod and the cylinder gland is easy to fail to cause gas leakage.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the compression cylinder of the circulating liquid seal compressor comprises a cylinder body, wherein a piston structure is arranged in the cylinder body, cylinder glands and cylinder bases are arranged at two ends of the cylinder body, the piston structure comprises a piston rod and a piston, the piston is movably arranged in the cylinder body, the piston rod is movably arranged in the cylinder glands, an air inlet and an air outlet are formed in the cylinder body, a support ring structure is arranged on the outer surface of the piston, the support ring structure comprises a support ring body, the support ring body is arranged between the cylinder body and the piston, a plurality of support ring grooves are formed in the outer surface of the support ring body and are used for storing circulating liquid to cool, lubricate and seal the cylinder body, a piston ring groove is formed in the outer surface of the piston corresponding to each support ring groove, a plurality of through holes which are used for communicating the support ring grooves with the piston ring grooves are formed in each support ring groove, the through holes are used for cooling the circulating liquid in the support ring grooves to the piston ring grooves, and liquid inlets and liquid outlets which are communicated with the support ring grooves are formed in the cylinder body;
the cylinder gland comprises a gland body, an axle center hole in sliding fit with the piston rod is formed in the center of the gland body, an annular cooling groove is formed in the side wall of the axle center hole, circulating liquid is stored in the annular cooling groove to cool, lubricate and hydraulically seal the piston rod, sealing ring grooves are respectively formed in the side wall of the axle center hole, sealing rings are arranged in the sealing ring grooves, and the sealing rings are used for preventing the circulating liquid in the annular cooling groove from leaking from gaps between the gland body and the piston rod to two sides; the gland body is internally provided with a radial liquid inlet channel and a radial liquid outlet channel which are communicated with the annular cooling groove, the radial liquid inlet channel is communicated with an axial liquid inlet channel which is arranged in the gland body, the radial liquid outlet channel is communicated with an axial liquid outlet channel which is arranged in the gland body, and circulating liquid in the axial liquid inlet channel, the radial liquid outlet channel and the axial liquid outlet channel is used for cooling the gland body.
The support ring body is made of metal or nonmetal composite materials, and an opening is formed in the support ring body along the axial direction.
The support ring body is sleeved in the mounting groove on the outer surface of the piston, the outer surfaces of the two ends of the piston are reserved with sealing ring grooves, sealing rings are mounted in the sealing ring grooves, and the support ring body is sleeved on the outer surface of the piston between the two sealing ring grooves.
The plurality of support ring annular grooves are uniformly formed in the outer surface of the support ring body, the piston ring grooves are uniformly formed in the outer surface of the piston, the plurality of through holes are uniformly formed in the support ring annular grooves along the circumference, and the positions of the plurality of through holes in each support ring annular groove are correspondingly arranged.
The piston is clamped and fixed through an annular boss arranged on the piston rod and a shaft end nut arranged on the piston rod.
Expansion grooves are respectively arranged on the side walls of the cylinder body at the inner ends of the liquid inlet and the liquid outlet.
The edge of the gland body is provided with a gland flange which is fixedly connected with the cylinder body through a plurality of connecting bolts.
The two sides of the inner end of the gland body are respectively provided with a chamfer angle, and the two sides of the inner end of the cylinder base are respectively provided with a chamfer angle.
The radial liquid inlet channel and the radial liquid outlet channel respectively penetrate through the side wall of the gland body.
And an accommodating groove matched with the shaft end nut is formed in the middle of the inner end of the cylinder base.
The invention adopts the scheme and has the following advantages:
the outer surface of the piston is provided with the support ring body, the outer surface of the support ring body is provided with the plurality of support ring grooves, and the support ring grooves are used for storing circulating liquid and can cool, lubricate and seal the cylinder body, so that the cooling effect of the cylinder body is improved, and the lubricating and sealing effect is improved; the piston annular grooves are respectively arranged at the positions of the outer surfaces of the pistons, corresponding to the annular grooves of each supporting ring, a plurality of through holes which are used for communicating the annular grooves of the supporting ring with the annular grooves of the piston ring are respectively arranged in the annular grooves of each supporting ring, circulating liquid in the annular grooves of the supporting ring is led to the annular grooves of the piston to cool the pistons, the heat exchange area between the circulating liquid and the pistons can be increased by the annular grooves of the piston, the cooling effect of the pistons is improved, the phenomenon that the pistons are blocked due to the high-temperature deformation caused by sliding friction between the pistons and the cylinder bodies is effectively avoided, the smooth sliding of the pistons is facilitated, and the normal working of the cylinders is ensured.
The annular cooling groove is formed in the side wall of the axial center hole of the gland body and is used for storing circulating liquid to cool the piston rod, so that the cooling effect of the piston rod is improved, meanwhile, the lubricating and liquid sealing effects are improved, gas is effectively prevented from leaking out from between the piston rod and the gland body, and the compression efficiency of the cylinder is guaranteed; the circulating liquid in the axial liquid inlet channel, the radial liquid outlet channel and the axial liquid outlet channel is used for cooling the gland body, so that the cooling effect of the gland body is improved, the problem of poor cooling effect caused by sliding friction heat between the piston rod and the gland body is effectively solved, the sliding smoothness of the piston rod is facilitated, and the normal work of the cylinder is ensured.
Description of the drawings:
fig. 1 is a schematic cross-sectional view of the present invention.
Fig. 2 is a schematic perspective view of a piston structure according to the present invention.
Fig. 3 is a schematic cross-sectional view of the piston structure of the present invention.
Fig. 4 is a schematic perspective view of a cylinder gland according to the present invention.
Fig. 5 is a schematic cross-sectional view of a cylinder gland according to the present invention.
In the figure, 1, a cylinder body, 2, a cylinder gland, 3, a cylinder base, 4, a piston rod, 5, a piston, 6, a support ring body, 7, a support ring annular groove, 8, a piston ring groove, 9, a through hole, 10, a gland body, 11, an annular cooling groove, 12, a seal ring groove, 13, a seal ring, 14, a radial liquid inlet channel, 15, a radial liquid outlet channel, 16, an axial liquid inlet channel, 17, an axial liquid outlet channel, 18, an opening, 19, an annular boss, 20, a shaft end nut, 21, a gland flange, 22, a connecting bolt, 23, a chamfer, 24, a containing groove, 25, a liquid inlet, 26, a liquid outlet, 27 and an expansion groove.
The specific embodiment is as follows:
in order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below with reference to the following detailed description and the accompanying drawings.
As shown in fig. 1-5, a compression cylinder of a circulating liquid seal compressor comprises a cylinder body 1, wherein a piston structure is arranged in the cylinder body 1, a cylinder gland 2 and a cylinder base 3 are arranged at two ends of the cylinder body 1, the piston structure comprises a piston rod 4 and a piston 5, the piston 5 is movably arranged in the cylinder body 1, the piston rod 4 is movably arranged in the cylinder gland 2, an air inlet and an air outlet are formed in the cylinder body 1, and when the circulating liquid seal compressor works, the piston rod 4 drives the piston 5 to reciprocate in the cylinder body 1, and after air enters the cylinder body 1 from the air inlet for pressurization, high-pressure air is discharged from the air outlet, so that the pressurization function of the air is realized. The outer surface of the piston 5 is provided with a supporting ring structure, the supporting ring structure comprises a supporting ring body 6, the supporting ring body 6 is arranged between the cylinder body 1 and the piston 5, the outer surface of the supporting ring body 6 is provided with a plurality of supporting ring grooves 7, the supporting ring grooves 7 are used for storing circulating liquid to cool, lubricate and seal the cylinder body 1, the outer surface of the piston 5 is respectively provided with a piston ring groove 8 corresponding to the position of each supporting ring groove 7, each supporting ring groove 7 is respectively provided with a plurality of through holes 9 which are used for communicating the supporting ring groove 7 with the piston ring groove 8, the through holes 9 are used for leading the circulating liquid in the supporting ring groove 7 to the piston ring groove 8 to cool the piston 5, the piston ring groove 8 can enlarge the heat exchange area between the circulating liquid and the piston 5, the cooling effect is improved, and the cylinder body 1 is internally provided with a liquid inlet 25 and a liquid outlet 26 which are communicated with the supporting ring groove 7;
the cylinder gland 2 comprises a gland body 10, an axle center hole in sliding fit with the piston rod 4 is arranged in the center of the gland body 10, an annular cooling groove 11 is arranged on the side wall of the axle center hole, circulating liquid is stored in the annular cooling groove 11 to cool, lubricate and seal the piston rod 4, sealing ring grooves 12 are respectively arranged on two sides of the side wall of the axle center hole, sealing rings 13 are arranged in the sealing ring grooves 12, and the sealing rings 13 are used for preventing the circulating liquid in the annular cooling groove 11 from leaking from gaps between the gland body 10 and the piston rod 4 to two sides; the gland body 10 is internally provided with a radial liquid inlet channel 14 and a radial liquid outlet channel 15 which are communicated with the annular cooling groove 11, the radial liquid inlet channel 14 is communicated with an axial liquid inlet channel 16 arranged in the gland body 10, the radial liquid outlet channel 15 is communicated with an axial liquid outlet channel 17 arranged in the gland body 10, and circulating liquid in the axial liquid inlet channel 16, the radial liquid inlet channel 14, the radial liquid outlet channel 15 and the axial liquid outlet channel 17 is used for cooling the gland body 10.
The circulating liquid can be various liquids such as water, ionic liquid, oil and the like.
The supporting ring body 6 is made of metal or nonmetal composite materials, and the metal materials are metals with small thermal expansion coefficients.
The support ring body 6 is provided with an opening 18 along the axial direction, the opening 18 can be straight or inclined, the support ring body 6 has certain elasticity, the support ring body 6 is conveniently propped open through the opening 18 and sleeved in a mounting groove on the outer surface of the piston 5, and the outer surface of the support ring body 6 is slightly higher than the outer surface of the piston 5 after mounting.
The supporting ring body 6 cover is established in the mounting groove of piston 5 surface, the surface at piston 5 both ends is reserved the sealing washer groove, installs sealing washer 13 in the sealing washer groove, seals the circulation liquid of inboard and external medium, and the piston 5 surface cover between two sealing washer grooves is equipped with supporting ring body 6, and supporting ring body 6 covers the surface of piston 5 mostly, can reduce the area of contact between two metals of cylinder body 1 and piston 5 greatly to reduce the heat that sliding friction produced, in addition, can also increase the heat transfer area of circulation liquid, promote the cooling effect. The total length of all the annular grooves 7 of the support ring is longer than the stroke of the piston.
The support ring annular grooves 7 are uniformly formed in the outer surface of the support ring body 6, the piston ring grooves 8 are uniformly formed in the outer surface of the piston 5, the through holes 9 are uniformly formed in the support ring annular grooves 7 along the circumference, so that the heat exchange cooling effect is more uniform, and the positions of the through holes 9 in each support ring annular groove 7 are correspondingly arranged, so that the processing is convenient.
The piston 5 is clamped and fixed by an annular boss 19 arranged on the piston rod 4 and a shaft end nut 20 arranged on the piston rod 4.
The side walls of the cylinder body 1 at the inner ends of the liquid inlet 25 and the liquid outlet 26 are respectively provided with an expansion groove 27, the expansion grooves 27 can correspond to the plurality of support ring annular grooves 7, circulating liquid can enter the support ring annular grooves 7 from the liquid inlet 25, and the circulating liquid in the support ring annular grooves 7 can be discharged outwards from the liquid outlet 26. Through the movement of the piston, the annular grooves 7 of each supporting ring are independently cooled by liquid circulation, and each circulation is carried out for 1-2 times, so that dead liquid areas can be prevented, and liquid at certain positions is prevented from not circulating.
The edge of the gland body 10 is provided with a gland flange 21, and the gland flange 21 is fixedly connected with the cylinder body 1 through a plurality of connecting bolts 22.
The two sides of the inner end of the gland body 10 are respectively provided with a chamfer 23, the two sides of the inner end of the cylinder base 3 are respectively provided with a chamfer 23, the chamfer 23 can guide gas on one hand, and on the other hand, the clearance volume among the gland body 10, the cylinder base 23 and the cylinder body 1 can be reduced, so that the performance of the whole machine is improved.
The radial liquid inlet channel 14 and the radial liquid outlet channel 15 respectively penetrate through the side wall of the gland body 10, so that the processing is convenient.
The middle part of the inner end of the cylinder base 3 is provided with a containing groove 24 matched with the shaft end nut 20.
The working principle between the piston 5 and the cylinder body 1 is as follows:
the external circulating liquid enters through the liquid inlet 25 in the cylinder body 1 and can be stored in the support ring groove 7 of the support ring body 6, so that the support ring body 6 and the cylinder body 1 can be cooled, lubricated and sealed with liquid, the cooling effect of the cylinder body 1 is improved, and the lubricating and sealing effect is improved; the circulating fluid in the annular groove 7 of the support ring is led to the annular groove 8 of the piston through a plurality of through holes 9 to perform heat exchange, so that the piston 5 can be cooled, the annular groove 8 of the piston can enlarge the heat exchange area between the circulating fluid and the piston 5, the cooling effect of the piston 5 is improved, and the circulating fluid in the annular groove 7 of the support ring and the annular groove 8 of the piston ring is finally discharged outwards through a liquid outlet 26 in the cylinder body 1 for recycling.
The working principle between the piston rod 4 and the cylinder gland 2 is as follows:
the external circulating liquid enters through the axial liquid inlet channel 16 and the radial liquid inlet channel 14 in the gland body 10 and can be stored in the annular cooling groove 11, so that the piston rod 4 can be cooled, the cooling effect of the piston rod 4 is improved, meanwhile, the lubrication and liquid sealing effects between the piston rod 4 and the gland body 10 are improved, the outward leakage of gas from between the piston rod 4 and the gland body 10 is effectively prevented, and the compression efficiency of the cylinder is ensured; the circulating liquid in the annular cooling groove 11 is finally discharged outwards through the radial liquid outlet channel 15 and the axial liquid outlet channel 17 for recycling. The circulating liquid in the axial liquid inlet channel 16, the radial liquid inlet channel 14, the radial liquid outlet channel 15 and the axial liquid outlet channel 17 can also cool the gland body 10, so that the cooling effect of the gland body 10 is improved, the problem of poor sliding friction heat generation cooling effect between the piston rod 4 and the gland body 10 is effectively solved, the sliding smoothness of the piston rod 4 is facilitated, and the normal work of the cylinder is ensured.
The above embodiments are not to be taken as limiting the scope of the invention, and any alternatives or modifications to the embodiments of the invention will be apparent to those skilled in the art and fall within the scope of the invention.
The present invention is not described in detail in the present application, and is well known to those skilled in the art.
Claims (10)
1. The utility model provides a compression cylinder of circulation liquid seal compressor, includes the cylinder body, be equipped with piston structure in the cylinder body, cylinder body both ends are equipped with cylinder gland and cylinder base, and piston structure includes piston rod and piston, and piston movable mounting is in the cylinder body, and piston rod movable mounting is in the cylinder gland, is equipped with air inlet and gas vent on the cylinder body, its characterized in that: the outer surface of the piston is provided with a support ring structure, the support ring structure comprises a support ring body, the support ring body is arranged between a cylinder body and the piston, the outer surface of the support ring body is provided with a plurality of support ring grooves, the support ring grooves are used for storing circulating liquid to cool, lubricate and seal the cylinder body, the positions of the outer surface of the piston corresponding to each support ring groove are respectively provided with a piston ring groove, each support ring groove is internally provided with a plurality of through holes which are used for communicating the support ring groove with a piston ring groove, the through holes are used for leading the circulating liquid in the support ring groove to the piston ring groove to cool the piston, and the cylinder body is internally provided with a liquid inlet and a liquid outlet which are communicated with the support ring groove;
the cylinder gland comprises a gland body, an axle center hole in sliding fit with the piston rod is formed in the center of the gland body, an annular cooling groove is formed in the side wall of the axle center hole, circulating liquid is stored in the annular cooling groove to cool, lubricate and hydraulically seal the piston rod, sealing ring grooves are respectively formed in the side wall of the axle center hole, sealing rings are arranged in the sealing ring grooves, and the sealing rings are used for preventing the circulating liquid in the annular cooling groove from leaking from gaps between the gland body and the piston rod to two sides; the gland body is internally provided with a radial liquid inlet channel and a radial liquid outlet channel which are communicated with the annular cooling groove, the radial liquid inlet channel is communicated with an axial liquid inlet channel which is arranged in the gland body, the radial liquid outlet channel is communicated with an axial liquid outlet channel which is arranged in the gland body, and circulating liquid in the axial liquid inlet channel, the radial liquid outlet channel and the axial liquid outlet channel is used for cooling the gland body.
2. The compression cylinder of a circulating liquid seal compressor of claim 1, wherein: the support ring body is made of metal or nonmetal composite materials, and an opening is formed in the support ring body along the axial direction.
3. A compression cylinder of a circulating liquid seal compressor according to claim 1 or 2, characterized in that: the support ring body is sleeved in the mounting groove on the outer surface of the piston, the outer surfaces of the two ends of the piston are reserved with sealing ring grooves, sealing rings are mounted in the sealing ring grooves, and the support ring body is sleeved on the outer surface of the piston between the two sealing ring grooves.
4. The compression cylinder of a circulating liquid seal compressor of claim 1, wherein: the plurality of support ring annular grooves are uniformly formed in the outer surface of the support ring body, the piston ring grooves are uniformly formed in the outer surface of the piston, the plurality of through holes are uniformly formed in the support ring annular grooves along the circumference, and the positions of the plurality of through holes in each support ring annular groove are correspondingly arranged.
5. The compression cylinder of a circulating liquid seal compressor of claim 1, wherein: the piston is clamped and fixed through an annular boss arranged on the piston rod and a shaft end nut arranged on the piston rod.
6. The compression cylinder of a circulating liquid seal compressor of claim 1, wherein: expansion grooves are respectively arranged on the side walls of the cylinder body at the inner ends of the liquid inlet and the liquid outlet.
7. The compression cylinder of a circulating liquid seal compressor of claim 1, wherein: the edge of the gland body is provided with a gland flange which is fixedly connected with the cylinder body through a plurality of connecting bolts.
8. The compression cylinder of a circulating liquid seal compressor of claim 1, wherein: the two sides of the inner end of the gland body are respectively provided with a chamfer angle, and the two sides of the inner end of the cylinder base are respectively provided with a chamfer angle.
9. The compression cylinder of a circulating liquid seal compressor of claim 1, wherein: the radial liquid inlet channel and the radial liquid outlet channel respectively penetrate through the side wall of the gland body.
10. The compression cylinder of a circulating liquid seal compressor of claim 5, wherein: and an accommodating groove matched with the shaft end nut is formed in the middle of the inner end of the cylinder base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310637815.XA CN116557261B (en) | 2023-05-30 | 2023-05-30 | Compression cylinder of circulating liquid seal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310637815.XA CN116557261B (en) | 2023-05-30 | 2023-05-30 | Compression cylinder of circulating liquid seal compressor |
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| Publication Number | Publication Date |
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| CN116557261A CN116557261A (en) | 2023-08-08 |
| CN116557261B true CN116557261B (en) | 2024-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310637815.XA Active CN116557261B (en) | 2023-05-30 | 2023-05-30 | Compression cylinder of circulating liquid seal compressor |
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|---|---|---|---|---|
| CN201412300Y (en) * | 2009-06-03 | 2010-02-24 | 汪潜 | Piston reciprocating air compressor totally without oil lubrication |
| CN204716500U (en) * | 2015-05-20 | 2015-10-21 | 仪征威龙发动机零部件有限公司 | Piston and piston-ring packing |
| CN209586844U (en) * | 2019-02-26 | 2019-11-05 | 江苏力源液压机械有限公司 | A kind of hydraulic cylinder |
| CN215566494U (en) * | 2021-06-24 | 2022-01-18 | 成都安迪生测量有限公司 | High-pressure cylinder side wall cooling structure and hydrogen compressor thereof |
| JP2023019120A (en) * | 2021-07-28 | 2023-02-09 | 株式会社神戸製鋼所 | Piston and reciprocating compressor |
| CN216617823U (en) * | 2021-12-27 | 2022-05-27 | 新乡市玖鼎机械有限公司 | Annular groove cooling cylinder sleeve for hydraulic piston type hydrogen compressor head |
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| CN116557261A (en) | 2023-08-08 |
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