CN219795493U - Elastic vortex sealed vertical reciprocating compressor - Google Patents
Elastic vortex sealed vertical reciprocating compressor Download PDFInfo
- Publication number
- CN219795493U CN219795493U CN202321261466.8U CN202321261466U CN219795493U CN 219795493 U CN219795493 U CN 219795493U CN 202321261466 U CN202321261466 U CN 202321261466U CN 219795493 U CN219795493 U CN 219795493U
- Authority
- CN
- China
- Prior art keywords
- piston body
- piston
- sealing sleeve
- reciprocating compressor
- vertical reciprocating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 59
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 2
- 238000007790 scraping Methods 0.000 claims 1
- 230000005489 elastic deformation Effects 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Compressor (AREA)
Abstract
The utility model discloses an elastic vortex sealed vertical reciprocating compressor, which comprises a cylinder body, a piston and a piston rod, and is characterized in that: the outer side of the piston is sleeved with a sealing sleeve, a gap is sealed between the outer circle of the sealing sleeve and the inner wall of the cylinder body, and a row of sealing ring grooves matched with each other are respectively arranged on the outer circle of the corresponding sealing sleeve and the inner wall of the cylinder body; the piston comprises an upper piston body and a lower piston body, the upper piston body and the lower piston body are sleeved on the piston rod, the distance between the upper piston body and the lower piston body is adjustable, the sealing sleeve is sleeved on the outer sides of the upper piston body and the lower piston body, an upper step and a lower step are arranged on the inner circle of the sealing sleeve, and the upper step and the lower step are pressed between the outer ends of the upper piston body and the lower piston body. The sealing gap can be adjusted by adjusting the elastic deformation of the sealing sleeve, so that the sealing gap can be adjusted by elastic deformation within a certain range.
Description
Technical Field
The utility model relates to an improved utility model of a compressor, in particular to an improved utility model of an elastic vortex sealed vertical reciprocating compressor.
Background
The labyrinth compressor is a novel compressor which adopts a non-contact labyrinth sealing technology between a piston and a cylinder wall and between a piston rod and a filler.
The sealing structure of the labyrinth piston compressor is non-contact vortex sealing, and the piston and the stuffing box are sealed by virtue of the labyrinth, so that the discharged gas is ensured not to be provided with lubricating oil, and no abrasive dust is generated, and the sealing performance and the use reliability of the labyrinth piston compressor are not affected by the solid particles contained in the gas.
However, the sealing gap between the existing piston and the inner wall of the cylinder body is not adjustable, the piston moves up and down under the influence of the pressure of the fluid, and the quantity of vortex generated by the labyrinth structure is small, so that the tightness of the vortex seal to the fluid is influenced, and leakage is caused.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide an elastic vortex sealed vertical reciprocating compressor.
In order to solve the technical problems, the utility model is realized by adopting the following technical scheme: the elastic vortex sealed vertical reciprocating compressor comprises a cylinder body, a piston and a piston rod, and is characterized in that: the outer side of the piston is sleeved with a sealing sleeve, a gap is sealed between the outer circle of the sealing sleeve and the inner wall of the cylinder body, and a row of sealing ring grooves matched with each other are respectively arranged on the outer circle of the corresponding sealing sleeve and the inner wall of the cylinder body; the piston comprises an upper piston body and a lower piston body, the upper piston body and the lower piston body are sleeved on the piston rod, the distance between the upper piston body and the lower piston body is adjustable, the sealing sleeve is sleeved on the outer sides of the upper piston body and the lower piston body, an upper step and a lower step are arranged on the inner circle of the sealing sleeve, and the upper step and the lower step are pressed between the outer ends of the upper piston body and the lower piston body.
Preferably, the cross section of the sealing ring groove on the outer circle of the sealing sleeve is triangular, and the cross section of the sealing ring groove on the inner wall of the cylinder body is trapezoidal.
Preferably, the front end of the piston rod is a diameter-reducing section, the upper piston body and the lower piston body are sleeved on the diameter-reducing section, and a locking nut is arranged at the outer end of the diameter-reducing section.
Preferably, the upper end and the lower end of the outer circle of the sealing sleeve are arranged in conical surfaces.
Preferably, the piston rod outside the cylinder body is provided with an oil scraper ring, a guide bearing and a cross head in sequence, the cross head is provided with a cross head slideway, and the cross head is connected with the crankshaft in a transmission way.
Preferably, the cylinder is provided with a separation section which is of an open or sealed inflatable arrangement.
Preferably, the compressor is provided with a hermetic crankcase or a hermetic pressure-resistant crankcase.
The improved elastic vortex sealed vertical reciprocating compressor has the advantages that firstly, the sealing gap between the piston and the inner wall of the cylinder body can be adjusted by adjusting the elastic deformation of the sealing sleeve, so that the elastic deformation can be realized within a certain range to adjust the sealing gap; the upper end and the lower end of the excircle of the sealing sleeve are conical surfaces, and when the piston moves up and down, the automatic centering is realized under the action of fluid pressure; the cross section of the sealing ring groove on the outer circle of the sealing sleeve is triangular, the cross section of the sealing ring groove on the inner wall of the cylinder body is trapezoid, and the number of vortex is effectively increased. The advantages are improved gap sealing performance and reduced leakage.
Drawings
The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a diagram of the piston structure of the present utility model.
Fig. 3 is a diagram of the clearance seal fit of the present utility model.
Detailed Description
The drawings illustrate the structure of the present utility model, and details thereof are further described below with reference to the drawings. In the embodiment, the elastic vortex sealed vertical reciprocating compressor comprises a cylinder body 1, a piston 2 and a piston rod 3, wherein a sealing sleeve 4 is sleeved on the outer side of the piston 2, a gap is sealed between the outer circle of the sealing sleeve 4 and the inner wall of the cylinder body 1, and a row of sealing ring grooves 5 which are matched with each other are respectively arranged on the outer circle of the corresponding sealing sleeve 4 and the inner wall of the cylinder body 1; the piston 2 comprises an upper piston body 21 and a lower piston body 22, the upper piston body 21 and the lower piston body 22 are sleeved on the piston rod 3, the distance between the upper piston body 21 and the lower piston body 22 is adjustable, the sealing sleeve 4 is sleeved on the outer sides of the upper piston body 21 and the lower piston body 22, an upper step 41 and a lower step 41 are arranged on the inner circle of the sealing sleeve 4, and the upper step 41 is pressed between the outer ends of the upper piston body 21 and the lower piston body 22.
According to the working principle of the utility model, the piston 2 moves up and down in the cylinder body 1 under the drive of the piston rod 3, the piston 2 and the inner wall of the cylinder body 1 are sealed through a gap, and particularly, a sealing ring groove 5 between the piston 2 and the inner wall of the cylinder body 1 forms vortex sealing; meanwhile, the sealing sleeve 4 can be extruded by adjusting the tiny distance between the upper piston body 21 and the lower piston body 22, so that the sealing sleeve 4 is elastically deformed and protrudes outwards, thereby adjusting the sealing gap and improving the gap sealing performance.
As a further improved specific embodiment, the cross section of the sealing ring groove 5 on the outer circle of the sealing sleeve 4 is triangular, and the cross section of the sealing ring groove 5 on the inner wall of the cylinder body 1 is trapezoidal, so that the air flow forms primary vortex at the triangular position, and the air flow forms secondary vortex at two feet of the trapezoid, thereby increasing the number of the vortices and improving the gap sealing performance.
As a further improved specific embodiment, the front end of the piston rod 3 is a reduced diameter section 31, the upper piston body 21 and the lower piston body 22 are sleeved on the reduced diameter section 31, the outer end of the reduced diameter section 31 is provided with a lock nut 32, the upper piston body 21 and the lower piston body 22 are mutually close by screwing the lock nut 32, the gap between the upper piston body 21 and the lower piston body 22 is reduced, and the piston 2 is extruded to elastically deform to two sides to adjust the gap between the piston 2 sleeve and the inner wall of the cylinder body 1.
As a further improved specific embodiment, the upper end and the lower end of the outer circle of the sealing sleeve 4 are conical surfaces, when the piston 2 moves up and down, the conical surfaces realize the automatic centering of the piston 2 under the action of fluid pressure, and are determined by the characteristics of the conical surfaces.
As a further improved specific embodiment, the oil scraper ring 6, the guide bearing 7 and the cross head 8 are sequentially arranged on the piston rod 3 outside the cylinder body 1, the cross head 8 is provided with a cross head slideway, the cross head 8 is in transmission connection with the crankshaft 9, the crankshaft 9 drives the cross head 8 to move up and down in the cross head slideway through the connecting rod, and then the piston rod 3 is driven to move up and down under the action of the guide bearing 7.
As a further improved embodiment, the cylinder 1 is provided with a separation section 12, which separation section 12 is provided in an open arrangement or in a sealed inflatable arrangement, when the open arrangement the leakage gas is vented to the atmosphere, when the sealed inflatable arrangement the leakage gas can be vented in a directed manner. The above-mentioned isolation sections are all of a conventional structure and will not be described in detail herein.
As a further improved embodiment, the compressor is provided with a hermetic crankcase or a hermetic pressure-resistant crankcase, and in the case of the hermetic crankcase, the compressor can be sealed with gas, and in the case of the hermetic pressure-resistant crankcase, the compressor can be sealed with gas and pressure-resistant. The above-described crankcase is a conventional structure and will not be described in detail herein.
In summary, the above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (7)
1. The utility model provides a vertical reciprocating compressor of elasticity vortex seal, includes cylinder body, piston and piston rod, its characterized in that: the outer side of the piston is sleeved with a sealing sleeve, a gap is sealed between the outer circle of the sealing sleeve and the inner wall of the cylinder body, and a row of sealing ring grooves matched with each other are respectively arranged on the outer circle of the corresponding sealing sleeve and the inner wall of the cylinder body; the piston comprises an upper piston body and a lower piston body, the upper piston body and the lower piston body are sleeved on the piston rod, the distance between the upper piston body and the lower piston body is adjustable, the sealing sleeve is sleeved on the outer sides of the upper piston body and the lower piston body, an upper step and a lower step are arranged on the inner circle of the sealing sleeve, and the upper step and the lower step are pressed between the outer ends of the upper piston body and the lower piston body.
2. The elastic vortex sealed vertical reciprocating compressor of claim 1 wherein: the cross section of the sealing ring groove on the outer circle of the sealing sleeve is triangular, and the cross section of the sealing ring groove on the inner wall of the cylinder body is trapezoidal.
3. The elastic vortex sealed vertical reciprocating compressor of claim 1 wherein: the front end of the piston rod is a reducing section, the upper piston body and the lower piston body are sleeved on the reducing section, and a locking nut is arranged at the outer end of the reducing section.
4. The elastic vortex sealed vertical reciprocating compressor of claim 1 wherein: the upper end and the lower end of the outer circle of the sealing sleeve are arranged in a conical surface mode.
5. The elastic vortex sealed vertical reciprocating compressor of claim 1 wherein: the piston rod outside the cylinder body is provided with an oil scraping ring, a guide bearing and a cross head in sequence, the cross head is provided with a cross head slideway, and the cross head is connected with a crankshaft in a transmission way.
6. The elastic vortex sealed vertical reciprocating compressor of claim 5 wherein: the cylinder body is provided with an isolation section which is arranged in an open type or a sealed inflatable type.
7. The elastic vortex sealed vertical reciprocating compressor of claim 5 wherein: the compressor is provided with a hermetic crankcase or a hermetic pressure-resistant crankcase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321261466.8U CN219795493U (en) | 2023-05-24 | 2023-05-24 | Elastic vortex sealed vertical reciprocating compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321261466.8U CN219795493U (en) | 2023-05-24 | 2023-05-24 | Elastic vortex sealed vertical reciprocating compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219795493U true CN219795493U (en) | 2023-10-03 |
Family
ID=88154838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321261466.8U Active CN219795493U (en) | 2023-05-24 | 2023-05-24 | Elastic vortex sealed vertical reciprocating compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219795493U (en) |
-
2023
- 2023-05-24 CN CN202321261466.8U patent/CN219795493U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210218296U (en) | Hydraulic cylinder sealing structure | |
| CN219795493U (en) | Elastic vortex sealed vertical reciprocating compressor | |
| CN201687688U (en) | Oilless packing assembly of piston type compressor | |
| CN212615707U (en) | Hydraulic cylinder | |
| CN219865394U (en) | Labyrinth seal reciprocating compressor with horizontal structure | |
| CN205503989U (en) | Hydro -cylinder compensation formula sliding seal structure | |
| CN210178480U (en) | Roller type piston of internal combustion engine | |
| CN208718885U (en) | A kind of single-stage double acting gas booster pump | |
| CN210599645U (en) | Sealed oil cylinder | |
| CN203585189U (en) | Sealing structure for shock absorber | |
| CN208934876U (en) | A kind of compression assembly and compressor | |
| CN113153953A (en) | Novel shock absorber | |
| CN201916278U (en) | Air cylinder | |
| CN201661681U (en) | Piston rod sealing system | |
| CN111706502A (en) | Sealing device for high-pressure plunger water injection pump packing of offshore oil platform | |
| CN212454743U (en) | Oil scraping filler of vertical compressor | |
| CN211449261U (en) | Hydraulic oil cylinder | |
| CN217081413U (en) | Reciprocating oil seal | |
| CN218094181U (en) | Piston seal ring | |
| CN206419412U (en) | A kind of good damper dust-proof cover of sealed preventing dust effect | |
| CN205423673U (en) | Inflatable bumper shock absorber director seal structure | |
| CN218031485U (en) | Stop valve and multi-linear compensation type sealing structure thereof | |
| CN215567459U (en) | Universal fuel-saving seal capable of exhausting | |
| CN221423856U (en) | Pneumatic sliding sleeve sealing device | |
| CN221322939U (en) | Oil leakage prevention lifting machine oil cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |