CN202673670U - Sealing device for compensation oil pump of diaphragm compressor - Google Patents
Sealing device for compensation oil pump of diaphragm compressor Download PDFInfo
- Publication number
- CN202673670U CN202673670U CN 201220311966 CN201220311966U CN202673670U CN 202673670 U CN202673670 U CN 202673670U CN 201220311966 CN201220311966 CN 201220311966 CN 201220311966 U CN201220311966 U CN 201220311966U CN 202673670 U CN202673670 U CN 202673670U
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- China
- Prior art keywords
- oil pump
- compensation oil
- plunger
- sealing
- sealing device
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a sealing device for a compensation oil pump of a diaphragm compressor, and belongs to the technical field of diaphragm compressors. The sealing device comprises the compensation oil pump, plunger sleeves, plungers and sealing grooves formed in the plungers, wherein the plunger sleeves are pressed into a pump body of the compensation oil pump; and the plungers are inserted into the plunger sleeves. The sealing device has the beneficial effects that labyrinth seal is adopted for sealing between the plungers and the plunger sleeves of the compensation oil pump, namely the action of the sealing grooves in the plungers is used for sealing, so that the sealing device has a good using effect, and the influence of a sealing problem of the compensation oil pump on the normal running of the diaphragm compressor can be effectively eliminated.
Description
Technical field
The utility model is a kind of seal arrangement of diaphragm type compressor compensation oil pump specifically, belongs to the diaphragm type compressor technical field.
Background technique
Membrane compressor is a kind of positive displacement compressor of special construction, the characteristics that have that compression ratio is large, good airproof performance, pressurized gas do not polluted by lubricant oil and other solid impurity.Usually, diaphragm type compressor mainly is comprised of driving mechanism, cylinder part, lubricating oil system, air pipe parts, crankcase components etc.Press the working principle of membrane compressor, the lubricant oil in the diaphragm type compressor oil cylinder extracts by the compensation oil pump in crankcase.The seal form of traditional compensation oil pump is by oil sealing, and the oil sealing of taking out of by the gap during plunger motion is lived.But the problem of the stuck plunger of oil sealing and the problem of the aging rear poor sealing of oil sealing in use often can appear in this method, cause compensation oil pump cisco unity malfunction, thereby affect the normal operation of diaphragm type compressor.
Summary of the invention
For the problem that above-mentioned prior art exists, the utility model provides a kind of seal arrangement of diaphragm type compressor compensation oil pump, can effectively eliminate the normal operation that affects diaphragm type compressor because of the sealing problem of compensation oil pump.
To achieve these goals, the technical solution adopted in the utility model is: the seal arrangement of this diaphragm type compressor compensation oil pump comprises the compensation oil pump, plunger bushing, plunger, and be arranged on seal groove on the plunger, plunger bushing is pressed into the pump housing of compensation oil pump, and plunger inserts in the plunger bushing;
As preferably, the degree of depth of seal groove is A=0.8～1.0mm.
The beneficial effects of the utility model are: labyrinth seal is adopted in the sealing of compensation oil pump, plunger and plunger bushing, namely rely on the effect of the seal groove on the plunger to seal, using effect is fine, can effectively eliminate the normal operation that affects diaphragm type compressor because of the sealing problem of compensation oil pump.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the seal groove structure schematic diagram on the plunger.
Among the figure: 1, compensation oil pump, 2, plunger bushing, 3, plunger, 4, seal groove.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, the seal arrangement of this diaphragm type compressor compensation oil pump, by compensation oil pump 1, plunger bushing 2, plunger 3, and the seal groove 4 that is arranged on the plunger 3 forms, and plunger bushing 2 is pressed into the pump housing of compensation oil pump 1, and plunger 3 inserts in the plunger bushings 2;
The degree of depth of described seal groove 4 is A=0.8～1.0mm, and like this, plunger 3 assembles rear favorable sealing property with plunger bushing 2, can effectively eliminate the phenomenon of poor sealing.
During work, because the effect of compensation oil pump 1, when its plunger 3 moves up and down, seal groove 4 on the plunger 3 can form labyrinth seal, the oil film that produces when being the seal groove 4 interior lubricant oil of depositing and plunger bushing 2 relative movement has played seal action, using effect is fine, can effectively eliminate the normal operation that affects diaphragm type compressor because of the sealing problem of compensation oil pump 1.
Claims (2)
1. the seal arrangement of diaphragm type compressor compensation oil pump, comprise compensation oil pump (1), it is characterized in that, also comprise plunger bushing (2), plunger (3), and be arranged on seal groove (4) on the plunger (3), and plunger bushing (2) is pressed into the pump housing of compensation oil pump (1), and plunger (3) inserts in the plunger bushing (2).
2. the seal arrangement of a kind of diaphragm type compressor compensation oil pump according to claim 1 is characterized in that, the degree of depth of described seal groove (4) is A=0.8～1.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220311966 CN202673670U (en) | 2012-06-30 | 2012-06-30 | Sealing device for compensation oil pump of diaphragm compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220311966 CN202673670U (en) | 2012-06-30 | 2012-06-30 | Sealing device for compensation oil pump of diaphragm compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673670U true CN202673670U (en) | 2013-01-16 |
Family
ID=47494577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220311966 Expired - Fee Related CN202673670U (en) | 2012-06-30 | 2012-06-30 | Sealing device for compensation oil pump of diaphragm compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202673670U (en) |
-
2012
- 2012-06-30 CN CN 201220311966 patent/CN202673670U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 221000 No. 99 Yang Shan Road, Xuzhou economic and Technological Development Zone, Jiangsu, Xuzhou Patentee after: JIANGSU PERMANENT MACHINERY CO., LTD. Address before: 221000 No. 99 Yang Shan Road, Xuzhou economic and Technological Development Zone, Jiangsu, Xuzhou Patentee before: Jiangsu Permanent Machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20180630 |