CN202597022U - Gas-liquid buffer compensation device for natural gas piston compressor - Google Patents
Gas-liquid buffer compensation device for natural gas piston compressor Download PDFInfo
- Publication number
- CN202597022U CN202597022U CN2012202200282U CN201220220028U CN202597022U CN 202597022 U CN202597022 U CN 202597022U CN 2012202200282 U CN2012202200282 U CN 2012202200282U CN 201220220028 U CN201220220028 U CN 201220220028U CN 202597022 U CN202597022 U CN 202597022U
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- gas
- liquid
- compensating part
- compensation
- compensation piece
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Abstract
The utility model relates to a gas-liquid buffer compensation device, in particular to a gas-liquid buffer compensation device for a natural gas piston compressor. A throttling channel connected with a buffer cavity of a middle connecting body is formed inside the middle connecting body; the other end of the throttling channel is communicated with a gas-liquid compensation piece; the gas-liquid compensation piece comprises a compensation piece cylinder, an inflation valve arranged on one side of the compensation piece cylinder, and a compensation piece piston arranged inside the compensation piece cylinder; the interior of the compensation piece cylinder is separated into a compensation piece gas chamber and a compensation piece liquid chamber through the compensation piece piston; the compensation piece gas chamber is connected with the inflation valve; and the compensation piece liquid chamber is connected with the throttling channel. By the device, when the pressure of the buffer cavity is increased due to the piston movement, the pressure in the buffer cavity is transmitted to the gas-liquid compensation piece through the throttling channel, the buffer compensation is realized through the gas-liquid compensation piece, and the peak pressure is avoided, so that the hydraulic cylinder is prevented from being impacted and damaged, the service life of a sealing piece is prolonged, and complete buffering is realized.
Description
Technical field
The utility model relates to a kind of Liquid and gas damper compensation device, relates in particular to a kind of rock gas piston compressor Liquid and gas damper compensation device.
Background technique
When the piston element in the rock gas piston compressor is made high-speed motion to stroke terminal, can produce very big impact and noise, even violent mechanical collision can take place, can damage other element of oil hydraulic cylinder and hydraulic system like this, have very big danger.The impact of rock gas piston compressor compression cylinder is mainly from inertial force, hydraulic thrust, gas pressure, the effect that surmounts load and gravity, and is wherein remarkable with the effect of inertial force.
Existing buffer is the buffer cavity that is located at rock gas piston compressor middle part connecting body, buffer be with the hydraulic pressure that buffer cavity produces can resist inertia can and the effect of other external force realize buffering.The size of buffering internal pressure is difficult to control.When piston movement speed reduce fast more, the pressure of buffer cavity is also high more, its surge pressure exceeds more than several times of working pressure sometimes, for the impact failure that prevents oil hydraulic cylinder must increase cylinder barrel wall thickness and the intensity that increases other part.And this kind buffer is because huge surge pressure influence is very big to the influence in working life of Sealing.And the designing and calculating of the whole bag of tricks buffer all to exist parameter to select with essential condition be design considerations, ignoring the method for other condition carries out designing and calculating, its result is difficult to reach the purpose of buffering fully.
The model utility content
The utility model technical problem to be solved is, overcomes the deficiency that exists in the existing technology, and a kind of oil hydraulic cylinder impact failure of avoiding is provided, and prolongs seal durability, realizes the rock gas piston compressor Liquid and gas damper compensation device of buffering fully.
The utility model is to be achieved through following technological scheme:
A kind of rock gas piston compressor Liquid and gas damper compensation device; The middle part connecting body that comprises the rock gas piston compressor that has buffer cavity; Be provided with the throttling passage that connects middle part connecting body buffer cavity in connecting body inside, said middle part, the said throttling passage the other end is communicated with the gas-liquid compensating part, and said gas-liquid compensating part comprises the compensating part cylinder body; Be located at the gas charging valve of compensating part cylinder body one side and be located at the compensating part piston of compensating part cylinder interior; At a distance from being divided into compensating part air chamber and compensating part liquid chamber, said compensating part air chamber is connected with gas charging valve said compensating part piston with the compensating part cylinder interior, and said compensating part liquid chamber links to each other with throttling passage.
Said gas-liquid compensating part is affixed through throttling joint and middle part connecting body.
Said gas charging valve is provided with the gas charging valve safety cover outward.
The beneficial effect of the utility model is:
Owing to be provided with the throttling passage that is communicated with portion connecting body buffer cavity; Make that the buffer cavity internal pressure is passed in the gas-liquid compensating part through throttling passage when piston motion raises the pressure of buffer cavity, realize the buffering compensation through the gas-liquid compensating part; Avoided the generation of surge pressure; Thereby avoided the oil hydraulic cylinder impact failure, prolonged seal durability, and realized buffering fully.
Description of drawings
Fig. 1 is the main TV structure schematic representation of the utility model.
Among the figure: 1. piston, 2. buffering ring, 3. liquid chamber, 4. buffer cavity, 5. middle part connecting body, 6. throttling passage, 7. throttling joint, 8. gas charging valve, 9. compensating part liquid chamber, 10. compensating part air chamber, 11. compensating part pistons, 12. compensating part cylinder bodies, 13. gas charging valve safety covers.
Embodiment
For the technician who makes the present technique field understands the technological scheme of the utility model better, the utility model is done further to specify below in conjunction with accompanying drawing and most preferred embodiment.
As shown in Figure 1; The utility model comprises the middle part connecting body 5 of the rock gas piston compressor that has buffer cavity 4; Be provided with the throttling passage 6 that connects middle part connecting body buffer cavity in connecting body inside, said middle part, the said throttling passage the other end is communicated with the gas-liquid compensating part, and said gas-liquid compensating part comprises compensating part cylinder body 12; Be located at the gas charging valve 8 of compensating part cylinder body one side and be located at the compensating part piston 11 of compensating part cylinder interior; At a distance from being divided into compensating part air chamber 10 and compensating part liquid chamber 9, said compensating part air chamber is connected with gas charging valve said compensating part piston with the compensating part cylinder interior, and said compensating part liquid chamber links to each other with throttling passage.
Said gas-liquid compensating part is affixed through throttling joint 7 and middle part connecting body.
Said gas charging valve is provided with gas charging valve safety cover 13 outward.
During work; Oil hydraulic pump unloading when piston; The oil pressure that acts on the piston 1 disappears, and continues motion because inertial force promotes piston, and buffering ring 2 seals the part hydraulic oil that will flow back to fuel tank in the liquid chamber 3 at last in the buffer cavity 4; Hydraulic oil in the buffer cavity is pressed in producing simultaneously, realizes buffering with the effect of opposing inertial force and other external force; Hydraulic oil flows out through throttling passage 6, gets in the compensating part liquid chamber 9, and hydraulic oil promotes compensating part piston 11 to 10 motions of compensating part air chamber; Gas in the compensating part air chamber 10 compresses, and utilizes the compressible principle of gas to reduce the hydraulic shock power of cylinder body, and existing buffering compensates; Avoided the generation of surge pressure; Thereby avoided the oil hydraulic cylinder impact failure, prolonged seal durability, and realized buffering fully.
The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (3)
1. rock gas piston compressor Liquid and gas damper compensation device; Comprise the middle part connecting body of the rock gas piston compressor that has buffer cavity, be characterised in that, be provided with the throttling passage that connects middle part connecting body buffer cavity in connecting body inside, said middle part; The said throttling passage the other end is communicated with the gas-liquid compensating part; Said gas-liquid compensating part comprises the compensating part cylinder body, be located at the gas charging valve of compensating part cylinder body one side and be located at the compensating part piston of compensating part cylinder interior, said compensating part piston with the compensating part cylinder interior at a distance from being divided into compensating part air chamber and compensating part liquid chamber; Said compensating part air chamber is connected with gas charging valve, and said compensating part liquid chamber links to each other with throttling passage.
2. a kind of rock gas piston compressor Liquid and gas damper compensation device according to claim 1 is characterised in that said gas-liquid compensating part is affixed through throttling joint and middle part connecting body.
3. a kind of rock gas piston compressor Liquid and gas damper compensation device according to claim 1 and 2 is characterised in that said gas charging valve is provided with the gas charging valve safety cover outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202200282U CN202597022U (en) | 2012-05-16 | 2012-05-16 | Gas-liquid buffer compensation device for natural gas piston compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202200282U CN202597022U (en) | 2012-05-16 | 2012-05-16 | Gas-liquid buffer compensation device for natural gas piston compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202597022U true CN202597022U (en) | 2012-12-12 |
Family
ID=47314569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202200282U Expired - Fee Related CN202597022U (en) | 2012-05-16 | 2012-05-16 | Gas-liquid buffer compensation device for natural gas piston compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202597022U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168780A (en) * | 2017-12-11 | 2018-06-15 | 西北机电工程研究所 | A kind of gas liquid type balancing machine |
| CN108168779A (en) * | 2017-12-11 | 2018-06-15 | 西北机电工程研究所 | A kind of design method of gas liquid type balancing machine |
-
2012
- 2012-05-16 CN CN2012202200282U patent/CN202597022U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168780A (en) * | 2017-12-11 | 2018-06-15 | 西北机电工程研究所 | A kind of gas liquid type balancing machine |
| CN108168779A (en) * | 2017-12-11 | 2018-06-15 | 西北机电工程研究所 | A kind of design method of gas liquid type balancing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20190516 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |