CN203335360U - Novel variable working condition multi-stage diaphragm compressor - Google Patents
Novel variable working condition multi-stage diaphragm compressor Download PDFInfo
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- CN203335360U CN203335360U CN2013202734937U CN201320273493U CN203335360U CN 203335360 U CN203335360 U CN 203335360U CN 2013202734937 U CN2013202734937 U CN 2013202734937U CN 201320273493 U CN201320273493 U CN 201320273493U CN 203335360 U CN203335360 U CN 203335360U
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- 239000003921 oil Substances 0.000 claims abstract description 74
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 12
- 230000006835 compression Effects 0.000 claims description 34
- 238000007906 compression Methods 0.000 claims description 34
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 230000037361 pathway Effects 0.000 claims description 5
- 230000001502 supplementing effect Effects 0.000 abstract 3
- 238000004904 shortening Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 6
- 238000005247 gettering Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002357 endometrial effect Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The utility model discloses a novel variable working condition multi-stage diaphragm compressor which comprises lower pressure and high pressure compressing cylinders in multiple stages. An oil cylinder or oil cavity and an air cavity are arranged in the compressing cylinder in each stage. The compressing cylinder in each stage is provided with a hydraulic oil supplementing path and a pressuring adjusting and oil returning path, wherein a diffluent oil quantity adjusting path is arranged between the hydraulic oil supplementing path and the oil returning path of the compressing cylinder; the oil quantity adjusting path is parallel to an oil cylinder or oil cavity oil line in the compressing cylinder to adjust the quantity of oil entering the oil cylinder or oil cavity from the hydraulic oil supplementing path; the oil quantity adjusting path is provided with an oil quantity control valve and a solenoid valve, wherein the oil quantity control valve and the solenoid valve are used for adjusting the oil quantity in the oil quantity adjusting path. According to the novel variable working condition multi-stage diaphragm compressor, when suction pressure is high, the operation of the diaphragm compressor can be balanced by means of lowering the exhaust efficiency (in the mode of adjusting the quantity of supplemented oil) of the low pressure cylinders (in the primary stage and secondary stage), so that the compressor is in a stable operation state all the time, air flow is smoother, and the purposes of not increasing the running noise of the diaphragm compressor and not shortening the service life of a diaphragm are achieved at the same time.
Description
Technical field
The utility model relates to the multistage diaphragm type compressor of a kind of novel variable working condition, is specifically related to the repairing path of multistage diaphragm type compressor.
Background technique
Diaphragm type compressor is a kind of positive displacement compressor, by its structural characteristics, determines that it has two large characteristics: compression ratio is large, good airproof performance, and this is the vitality place of diaphragm type compressor just also.Its groundwork principle is: reciprocating by driving mechanism driven plunger or plunger, piston or plunger promote fluid (fluid cannot compress) the drive diaphragm pressurized gas in oil cylinder, in the film chamber, the volume of gas has obtained change, has realized the purpose of gas compression under the cooperation of suction, outlet valve.
In each work cycle of compressor, fluid amount in oil cylinder all has loss, this is excessive the causing of adjusting by oil circuit leakage or other valves, so diaphragm type compressor is in order to realize the stable of oil cylinder inner fluid pressure, will in oil cylinder, supplement fluid in each work cycle, and supplementary fluid amount can be more than the oil mass of loss.
The repairing route structure of multistage diaphragm type compressor as shown in Figure 1, low pressure (LP) cylinder 9 and high-pressure cylinder 10 are provided with independent repairing route, carry out repairing by slippage pump 4 and slippage pump 14 respectively, the oil return route all is connected to gear pump 6 (fuel tank float chamber), forms hydraulic oil circuit.In order to regulate the operating oil pressure in low pressure (LP) cylinder 9, low pressure (LP) cylinder 9 also is provided with pressure regulator valve 2, the purpose of pressure regulator valve 2 is to remain on the required oil pressure of pressurized gas for the operating oil pressure by low pressure (LP) cylinder 9, but pressure regulator valve 2 is only pressure release from the oil cylinder of low pressure (LP) cylinder 9, the oil mass that fills into low pressure (LP) cylinder 9 in work cycle is still too much, and this oil circuit is not suitable for variable working condition compression operation.About variable working condition compression operation, detailed explanation is arranged in following word.
Traditional diaphragm type compressor, start or shutdown all need manual control, for example when gas is carried in the needs compression, start shooting, or need to set according to the client opening and closing that the condition of starting shooting or shutting down is carried out automatic control compressor.Along with diaphragm type compressor is applied more widely, under some particular case, diaphragm type compressor must be all the time in the start running state.Because diaphragm type compressor is compressed the gas sucking-off and is transported in other container from certain container; by the air pressure in gettering container, can be reduced gradually; this is exactly the running state of a variable working condition for compressor, and namely compressor will be moved in low variable working condition by hypermutation gradually by institute's pressure of inspiration(Pi) in not shutdown situation.If diaphragm type compressor be in the situation of single stage compression or just exhaust pressure to change in high situation operation generally no problem by low gradually, and institute's pressure of inspiration(Pi) is especially had while changing by a relatively large margin to low by hypermutation gradually, owing in the film chamber at compressor, can producing unbalanced pressure difference, the diaphragm type compressor that is provided with two-stage or three grades of compressions just can't adapt to this variation, one-level compression cylinder and follow-up compression cylinder can't normally coordinate, and air-breathing and compression operation also just can't normally be carried out.While unbalanced pressure difference occurring, also can make compression cylinder produce larger noise, reduce the working life of film endometrial cavity sheet.
In prior art in order to realize that multistage diaphragm type compressor can not shut down running in the variable working condition situation, the method that usually adopts gas circuit to regulate, as shown in Figure 1, a kind of method is, at intakeport, decompressor 1 is set, if initial excessive by gettering container air pressure when air-breathing, it is implemented to reduced pressure treatment, higher suction pressures is got off Pressure Drop by decompressor 1, if what at this moment the progression of compressor was controlled the pressure of inspiration(Pi) excursion more at most is tighter, regulating effect is undesirable, secondly between the air-breathing path of final exhaust pathway and one-level compression cylinder, circulation loop is set, in the air-breathing operation later stage, air pressure by gettering container is too low, one-level compression cylinder can't run well (diaphragm in the film chamber can't normally recover), can enter the one-level compression cylinder from a part of air-flow of exhaust pathway backflow, make the one-level compression cylinder can maintain in the film chamber that normal pressure is poor to work on, but compressor in fact now can't normally suck with Exhaust Gas, and still there is portion gas to be deposited in the gas circulation path of compressor, this can reduce air-breathing operation quality.
Piston compressor is by the clearance of change low pressure (LP) cylinder (one-level) Aspirating valves or insert valve arrangement etc. at low pressure (LP) cylinder (one-level) upper increase clearance cylinder or employing, by reducing the exhaust efficiency of low pressure (LP) cylinder (one-level), realize when institute's pressure of inspiration(Pi) changes from high to low the adjusting to flow effect, but the diaphragm type compressor cylinder because can't adopting said method, the reasons such as structure and working principle is regulated.
The model utility content
For the problem existed in background technique, the purpose of this utility model is to provide a kind of novel variable working condition multistage diaphragm type compressor, the repairing path of this diaphragm type compressor is provided with new controlling device, can adapt to pressure of inspiration(Pi) gradually by hypermutation to low variation by a relatively large margin, all the time still can stable operation under running state in start at diaphragm type compressor.
The purpose of this utility model is achieved through the following technical solutions:
The multistage diaphragm type compressor of novel variable working condition, described diaphragm type compressor is provided with the multistage compression cylinder, be provided with oil cylinder or oil pocket and air cavity in compression cylinder, compression cylinders at different levels are provided with hydraulic oil repairing and pressure regulation oil return path, be provided with the fuel-flow control path of shunting between the repairing of described compression cylinder and oil return path, the oil cylinder of described fuel-flow control path and described compression cylinder or oil pocket oil circuit are parallel, regulate the repairing path and enter the oil mass in oil cylinder or oil pocket; Described fuel-flow control path is provided with quantity control valve and the solenoid valve of regulating this path oil mass size.
Further, flow to along hydraulic oil the quantity control valve that is disposed with solenoid valve and controls this total oil mass in path on described fuel-flow control path.
Further, be provided with baroceptor on the air-breathing path of described diaphragm type compressor and exhaust pathway.
Further, described diaphragm type compressor is provided with automatic controller and carries out overall operation control, and the break-make of described solenoid valve is controlled by described automatic controller.
Further, described automatic controller adopts PLC or is provided with the control circuit of relay.
Multistage diaphragm type compressor of the present utility model, increase the fuel-flow control path on the repairing path, can regulate the oil mass entered in compression cylinder oil cylinder or oil pocket, if higher by the air pressure in gettering container, the fuel-flow control path is by the most of oil mass shunting on the repairing path, now the working efficiency of one-level compression cylinder is lower, and the working efficiency of advanced compression cylinder is higher; Along with the air pressure by gettering container progressively reduces, the hydraulic oil of fuel-flow control path shunting also gradually reduces, and the working efficiency of one-level compression cylinder progressively improves, and the working efficiency of advanced compression cylinder progressively reduces.
Multistage diaphragm type compressor of the present utility model, can carry out the balance diaphragm type compressor by the exhaust efficiency (by the mode of regulating the repairing amount) that reduces low pressure (LP) cylinder (one-level) when pressure of inspiration(Pi) is higher, make compressor all the time in steady operational status, gas flow is more steady, has reached again the operation noise that does not increase diaphragm type compressor and has not reduced the diaphragm purpose in working life simultaneously.
The accompanying drawing explanation
Fig. 1 is the gas circuit regulating system structural drawing of prior art septation compressor;
Fig. 2 is the oil circuit regulating system structural drawing of diaphragm type compressor of the present utility model.
In figure: 1. decompressor, 2. pressure regulator valve, 3. solenoid valve, 4. slippage pump, 5. spill valve, 6. gear pump, 7. quantity control valve, 8. oil cooler, 9. low pressure (LP) cylinder, 10. high-pressure cylinder, 11. quantity control valve, 12. solenoid valves, 13. servo valves, 14. slippage pump, 15. pneumatic ball valves, 16. one-level coolers, 17. secondary coolers, 18. safety check, 19. pneumatic ball valves.
Embodiment
Be to reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the utility model, below in conjunction with accompanying drawing and preferred embodiment, structure of the present utility model, workflow be described in detail as follows.
Be illustrated in figure 2 one of the utility model embodiment, in this embodiment, the multistage diaphragm type compressor of novel variable working condition is provided with multistage compression cylinder or oil pocket, be respectively low pressure (LP) cylinder 9 and high-pressure cylinder 10, be provided with oil cylinder or oil pocket and air cavity in compression cylinder, low pressure (LP) cylinder 9 and high-pressure cylinder 10 are provided with hydraulic oil repairing and oil return path, be provided with the fuel-flow control path of shunting between the repairing of described compression cylinder and oil return path, the oil cylinder of described fuel-flow control path and described compression cylinder or oil pocket oil circuit are parallel, regulate the repairing path and enter the oil mass in oil cylinder or oil pocket; Described fuel-flow control path is provided with the solenoid valve of regulating this path oil mass size, is respectively solenoid valve 3 and solenoid valve 12.
As shown in Figure 2, flow to along hydraulic oil the quantity control valve 7 that is disposed with solenoid valve 3 and controls this total oil mass in path on the fuel-flow control path of low pressure (LP) cylinder 9, on the fuel-flow control path of high-pressure cylinder 10, along hydraulic oil, flow to the quantity control valve 11 that is disposed with solenoid valve 12 and controls this total oil mass in path.
Because solenoid valve 3 and solenoid valve 12 are automatic control components, control the break-make in fuel-flow control path, so being provided with automatic controller, diaphragm type compressor of the present utility model carries out overall operation control, and be provided with baroceptor on air-breathing path and exhaust pathway, be respectively Pt-1 and Pt-2, for automatic controller provides pneumatic parameter, the break-make of solenoid valve 3 and solenoid valve 12 is controlled by described automatic controller, and automatic controller can adopt PLC or be provided with the control circuit of relay.
Table 1. Figure of description control point Schedule
Table 2. Figure of description graphic symbol table
Above describedly just for the utility model is described, is construed as the utility model and is not limited to above embodiment, meet the various flexible form of the utility model thought all within protection domain of the present utility model.
Claims (5)
1. the multistage diaphragm type compressor of novel variable working condition, described diaphragm type compressor is provided with the multistage compression cylinder, be provided with oil cylinder or oil pocket and air cavity in compression cylinder, compression cylinders at different levels are provided with hydraulic oil repairing and pressure regulation oil return path, it is characterized in that, be provided with the fuel-flow control path of shunting between the repairing of described compression cylinder and oil return path, the oil cylinder of described fuel-flow control path and described compression cylinder or oil pocket oil circuit are parallel, regulate the repairing path and enter the oil mass in oil cylinder or oil pocket; Described fuel-flow control path is provided with quantity control valve and the solenoid valve of regulating this path oil mass size.
2. diaphragm type compressor as claimed in claim 1, is characterized in that, on described fuel-flow control path, along hydraulic oil, flows to the quantity control valve that is disposed with solenoid valve and controls this total oil mass in path.
3. diaphragm type compressor as claimed in claim 1, is characterized in that, on the air-breathing path of described diaphragm type compressor and exhaust pathway, is provided with baroceptor.
4. diaphragm type compressor as claimed in claim 1, is characterized in that, described diaphragm type compressor is provided with automatic controller and carries out overall operation control, and the break-make of described solenoid valve is controlled by described automatic controller.
5. diaphragm type compressor as claimed in claim 4, is characterized in that, described automatic controller adopts PLC or is provided with the control circuit of relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202734937U CN203335360U (en) | 2013-05-20 | 2013-05-20 | Novel variable working condition multi-stage diaphragm compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202734937U CN203335360U (en) | 2013-05-20 | 2013-05-20 | Novel variable working condition multi-stage diaphragm compressor |
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| Publication Number | Publication Date |
|---|---|
| CN203335360U true CN203335360U (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202734937U Expired - Fee Related CN203335360U (en) | 2013-05-20 | 2013-05-20 | Novel variable working condition multi-stage diaphragm compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223498A (en) * | 2018-03-14 | 2018-06-29 | 顾兴坤 | A kind of hydraulic control system using hydraulic oil cooling clearance adjustment actuating mechanism |
-
2013
- 2013-05-20 CN CN2013202734937U patent/CN203335360U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223498A (en) * | 2018-03-14 | 2018-06-29 | 顾兴坤 | A kind of hydraulic control system using hydraulic oil cooling clearance adjustment actuating mechanism |
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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: 20131211 Termination date: 20190520 |
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| CF01 | Termination of patent right due to non-payment of annual fee |