CN114198308A - Marine adjustable-speed screw compressor function adjusting structure - Google Patents
Marine adjustable-speed screw compressor function adjusting structure Download PDFInfo
- Publication number
- CN114198308A CN114198308A CN202111472616.5A CN202111472616A CN114198308A CN 114198308 A CN114198308 A CN 114198308A CN 202111472616 A CN202111472616 A CN 202111472616A CN 114198308 A CN114198308 A CN 114198308A
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- Prior art keywords
- adjustable
- sealing ring
- oil piston
- oil
- adjusting
- Prior art date
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- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 46
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 238000005299 abrasion Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 abstract description 7
- 230000008859 change Effects 0.000 abstract description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
- F04C28/12—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves
- F04C28/125—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using sliding valves with sliding valves controlled by the use of fluid other than the working fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/008—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
Abstract
The invention relates to a speed-adjustable screw compressor adjusting structure for a ship, which is provided with an oil piston, wherein the oil piston is connected with a slide valve through a connecting rod, two sides of the outer cylinder of an oil piston body are respectively provided with a set of sealing rings, the middle of the outer cylinder of the oil piston body is provided with a guide ring, the oil piston body is in matched, guided, sealed and sliding connection with an oil cylinder body through the two sets of sealing rings and the guide ring, the outer side of the left sealing ring is provided with an adjustable pressure plate, the adjustable pressure plate is connected with the left end surface of the oil piston body through four adjusting screws, and the compression amount between the left sealing ring and the oil cylinder body is adjusted through the four adjusting screws. The energy adjusting structure can meet the use requirements of the original unit, reserve an adjusting function, adjust the stability of the energy adjusting mechanism according to the actual use requirements, and meet the system requirements of air conditioners, electronic equipment and the like with great difference in load change rate. Because this structure can be adjusted at the scene, convenient operation, greatly reduced the maintainability of real ship, alleviateed spare part pressure.
Description
Technical Field
The invention relates to a slide valve energy adjusting mechanism of a screw compressor, which is mainly suitable for the field control of the stability of the slide valve energy adjusting mechanism of the screw compressor.
Background
At present, the marine screw compressor works stably, and an external oil pump is still partially adopted to lift oil pressure so as to push a piston to drive a slide valve to complete the load increasing and decreasing actions of the compressor. The structure of the oil piston is generally shown in figure 1, and the system is shown in figure 2. In the use process of the compressor, due to the fact that the compressor has certain abrasion of air suction and exhaust pressure difference and a sealing structure, the oil piston generally has the conditions that the oil piston cannot stably operate and automatically moves under the counter-acting force of the sliding valve. In the actual use process, a compressor manufacturer requires a user to adjust the load increase and load decrease operation time of the compressor and strengthen the unit running state monitoring so as to adjust the running state of the compressor and meet the unit requirements. In the use mode, under the condition that the system is provided with the external oil pump, the load of the oil pump fluctuates due to frequent adjustment. And because the use requirement on the ship is complicated, the continuously-changed adjusting speed cannot meet the requirement of the tail end equipment such as an air conditioner tail end and electronic equipment on the refrigerating capacity.
Disclosure of Invention
The invention aims to provide a speed-adjustable screw compressor adjusting structure for a ship, which is convenient to disassemble, assemble and adjust on site and can be deployed on mobile platforms such as ships.
In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a marine adjustable speed screw compressor adjustable structure, an oily piston has, oily piston passes through the connecting rod and is connected with the sliding valve, be equipped with one set of sealing ring on the outer cylinder both sides of oily piston body respectively, the centre is equipped with a guide ring, oily piston body is through two sets of sealing rings and a guide ring and the sealed sliding connection of hydro-cylinder body cooperation direction, wherein, the left side sealing ring outside is equipped with adjustable clamp plate, and adjustable clamp plate is connected with the left end face of oily piston body through four adjusting screw, and adjust the compression capacity between left side sealing ring and the hydro-cylinder body through four adjusting screw.
Further, when the adjustable pressure plate does not have the left sealing ring, the left sealing ring is in a relaxed state, so that the oil piston is guided and sealed through a set of guide ring and the right sealing ring.
Furthermore, the oil piston is in matched sliding connection with the oil cylinder body through the right sealing ring and a set of guide rings, so that the conventional use requirement of the compressor can be met, the oil piston can freely move under the pressure difference of 3bar, the oil piston keeps sealed after an oil way is closed, and the oil piston is prevented from moving under the reaction force of the sliding valve.
Furthermore, after the adjustable pressure plate adjusts the extrusion amount of the left sealing ring through the adjusting screw, the left sealing ring can enhance the sealing effect, compensate the abrasion of the abraded right part or independently realize the aim of enhancing the sealing effect, and the adjustable pressure plate is used in a state with higher requirement on the energy adjusting speed in a marine environment.
Furthermore, the adjustable pressure plate adjusts the extrusion amount of the left sealing ring through an adjusting screw, increases the pressure difference required by the movement of the oil piston to 5bar or 7bar, and avoids frequent energy adjustment of the compressor in the use process.
The invention has the beneficial effects that:
the existing energy adjusting mechanism has the problems of instability and incapability of adjusting. The adjustable-speed screw compressor adjustable structure for the ship can meet the use requirements of the original unit, can reserve an adjusting function, can adjust the stability of an energy adjusting mechanism according to the actual use requirements, and meets the system requirements of air conditioners, electronic equipment and the like with great difference in load change rate. Because the mechanism can be adjusted on site, the operation is convenient, the maintainability of the real ship is greatly reduced, and the pressure of spare parts is reduced.
Drawings
FIG. 1 is a view of a prior art oil piston;
FIG. 2 is a schematic diagram of an energy modulation system;
fig. 3 is a structural view of an oil piston of the marine variable speed adjustment mechanism of the present invention.
Detailed Description
The invention is further described with reference to the following figures and examples.
As shown in figure 3, the adjustable structure of the marine adjustable-speed screw compressor comprises an adjustable pressure plate 5, four adjusting screws 6, a guide ring 3, two sets of sealing rings and an oil piston body 1. The oil piston is connected with the slide valve through a connecting rod. The two sides of the outer cylinder of the oil piston body 1 are respectively provided with a set of sealing rings, the middle of the outer cylinder is provided with a guide ring 3, and the oil piston body 1 is in matched guide sealing sliding connection with the oil cylinder body through the two sets of sealing rings and the guide ring 3. Wherein, right side sealing ring 2 is fixed seal ring, and the left side sealing ring 4 outside is equipped with adjustable clamp plate 5, and adjustable clamp plate 5 is connected with the left end face of oil piston body 1 through four adjusting screw 6 to adjust the compression capacity between left side sealing ring 4 and the oil cylinder body through four adjusting screw 6.
During the routine use wherein, adjustable clamp plate 5 need not to compress tightly, and left side sealing ring 4 is in the state of relaxing, relies on guide ring 3 and right side sealing ring 2 to realize functions such as direction, sealed. A sealing ring and a set of guide rings can meet the conventional use requirement of the compressor, can move freely under the pressure difference of 3bar, and keep good sealing after an oil path is closed, so that the sealing ring and the set of guide rings can be prevented from moving under the reaction force of a slide valve.
When the energy regulation speed is high in the marine environment, the left side sealing ring 4 is extruded by adjusting the adjusting screw 6, the sealing effect is enhanced, the abrasion of an abraded right side part can be compensated, or the aim of enhancing the sealing effect is achieved independently, the pressure difference required by the movement of the oil piston is further increased to 5bar or 7bar, and the compressor is prevented from frequently adjusting energy in the using process.
Claims (5)
1. The utility model provides a marine adjustable speed screw compressor can transfer structure, has an oil piston, and oil piston passes through the connecting rod to be connected with the sliding valve, is equipped with one set of sealing ring, centre respectively on the outer cylinder both sides of oil piston body, is equipped with a guide ring, and oil piston body is through two sets of sealing rings and a guide ring and the sealed sliding connection of hydro-cylinder body cooperation direction, its characterized in that: the adjustable pressure plate is arranged on the outer side of the left sealing ring and connected with the left end face of the oil piston body through four adjusting screws, and the compression amount between the left sealing ring and the oil cylinder body is adjusted through the four adjusting screws.
2. The adjustable structure of the marine adjustable-speed screw compressor of claim 1, characterized in that: when the adjustable pressure plate does not compress the left sealing ring, the left sealing ring is in a relaxed state, so that the oil piston is guided and sealed through a set of guide ring and the right sealing ring.
3. The adjustable structure of the marine adjustable-speed screw compressor of claim 2, characterized in that: the oil piston is in sliding connection with the oil cylinder body in a matched mode through the right sealing ring and a set of guide rings, can meet the conventional use requirements of the compressor, can freely move under the pressure difference of 3bar, keeps sealed after an oil way is closed, and avoids moving under the reaction force of the sliding valve.
4. The adjustable structure of the marine adjustable-speed screw compressor of claim 1, characterized in that: after the adjustable pressure plate adjusts the extrusion amount of the left sealing ring through the adjusting screw, the left sealing ring can enhance the sealing effect, compensate the abrasion of the abraded right part or independently realize the aim of enhancing the sealing effect, and the adjustable pressure plate is used in a state with higher requirement on the energy adjusting speed in a marine environment.
5. The adjustable structure of the marine adjustable-speed screw compressor of claim 4, wherein: the adjustable pressure plate adjusts the extrusion amount of the left sealing ring through an adjusting screw, increases the pressure difference required by the movement of the oil piston to 5bar or 7bar, and avoids frequent energy adjustment of the compressor in the using process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111472616.5A CN114198308B (en) | 2021-12-06 | 2021-12-06 | Marine adjustable speed screw rod can adjust structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111472616.5A CN114198308B (en) | 2021-12-06 | 2021-12-06 | Marine adjustable speed screw rod can adjust structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114198308A true CN114198308A (en) | 2022-03-18 |
| CN114198308B CN114198308B (en) | 2024-07-12 |
Family
ID=80650595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111472616.5A Active CN114198308B (en) | 2021-12-06 | 2021-12-06 | Marine adjustable speed screw rod can adjust structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114198308B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB430913A (en) * | 1933-12-22 | 1935-06-24 | George Hancock Reid | Improvements in or relating to pistons, plungers and the like |
| TW200523490A (en) * | 2002-06-14 | 2005-07-16 | Kurashiki Boseki Kk | Syringe device |
| CN101265925A (en) * | 2007-03-12 | 2008-09-17 | Smc株式会社 | Pressure booster |
| CN201908840U (en) * | 2011-01-24 | 2011-07-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Slide valve regulation mechanism and screw compressor with same |
| CN102782375A (en) * | 2009-12-11 | 2012-11-14 | 大洋洲工程集团有限公司 | Hydraulic cylinder including a variable-shape o-ring |
| CN202914719U (en) * | 2012-09-06 | 2013-05-01 | 中国石油化工股份有限公司 | Self-dedusting anti-jamming piston |
| CN104314811A (en) * | 2014-09-22 | 2015-01-28 | 珠海格力电器股份有限公司 | Compressor slide valve assembly and refrigeration screw compressor |
| CN204153128U (en) * | 2014-09-17 | 2015-02-11 | 河北玉星生物工程有限公司 | A kind of piston |
| CN207349426U (en) * | 2017-10-30 | 2018-05-11 | 北京圣伦食品有限公司 | A kind of piston with durable seal circle |
| CN111878401A (en) * | 2020-08-25 | 2020-11-03 | 珠海格力电器股份有限公司 | Accurately-controlled slide valve loading and unloading structure, screw compressor and control method |
-
2021
- 2021-12-06 CN CN202111472616.5A patent/CN114198308B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB430913A (en) * | 1933-12-22 | 1935-06-24 | George Hancock Reid | Improvements in or relating to pistons, plungers and the like |
| TW200523490A (en) * | 2002-06-14 | 2005-07-16 | Kurashiki Boseki Kk | Syringe device |
| CN101265925A (en) * | 2007-03-12 | 2008-09-17 | Smc株式会社 | Pressure booster |
| CN102782375A (en) * | 2009-12-11 | 2012-11-14 | 大洋洲工程集团有限公司 | Hydraulic cylinder including a variable-shape o-ring |
| CN201908840U (en) * | 2011-01-24 | 2011-07-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Slide valve regulation mechanism and screw compressor with same |
| CN202914719U (en) * | 2012-09-06 | 2013-05-01 | 中国石油化工股份有限公司 | Self-dedusting anti-jamming piston |
| CN204153128U (en) * | 2014-09-17 | 2015-02-11 | 河北玉星生物工程有限公司 | A kind of piston |
| CN104314811A (en) * | 2014-09-22 | 2015-01-28 | 珠海格力电器股份有限公司 | Compressor slide valve assembly and refrigeration screw compressor |
| CN207349426U (en) * | 2017-10-30 | 2018-05-11 | 北京圣伦食品有限公司 | A kind of piston with durable seal circle |
| CN111878401A (en) * | 2020-08-25 | 2020-11-03 | 珠海格力电器股份有限公司 | Accurately-controlled slide valve loading and unloading structure, screw compressor and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114198308B (en) | 2024-07-12 |
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