CN1363770A - Piston-type compressor with ultrahigh compression ratio and independence of motor power from piston stroke - Google Patents
Piston-type compressor with ultrahigh compression ratio and independence of motor power from piston stroke Download PDFInfo
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- CN1363770A CN1363770A CN 01135627 CN01135627A CN1363770A CN 1363770 A CN1363770 A CN 1363770A CN 01135627 CN01135627 CN 01135627 CN 01135627 A CN01135627 A CN 01135627A CN 1363770 A CN1363770 A CN 1363770A
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- 238000007906 compression Methods 0.000 title claims abstract description 30
- 230000006835 compression Effects 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000004804 winding Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
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- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002650 habitual effect Effects 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
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Abstract
A piston-type compressor with ultrahigh compression ratio features that a linear motor is used as its power source and the power of motor is only related to the diameter of piston (output power), but not to the stroke of piston. Its compression ratio can be increase by increasing piston stroke as long as possibe.
Description
The present invention relates to adopt linear electric motor is the Compressor Technology of power.
The driving mode of existing piston formula compressor is mainly finished by electric rotating machine or linear electric motor.
The piston reciprocating compressor that electric rotating machine drives is because advantage such as its manufacturing is simple, with low cost and the life-span is very long, made it become on the world history the longest and most popular a kind of type in working life.Its deficiency is: exist between the piston diameter of this type, piston stroke and the power of motor three " best interlock connection ", that is: after the piston diameter that relates to the size of exerting oneself and power of motor were determined, piston stroke just can not extend again.The volume clearance efficient of this moment is also just fixed thereupon, is difficult to improve again.The work compression ratio of this type generally is controlled at and is no more than 10 and is advisable, otherwise, will adopt the multistage compression scheme to solve the problem of this high compression ratio on engineering, this becomes habitual matters already.
The piston compressor of linear motor driving still can not be used at present widely.Also in 1977 21 phases " external scientific and technological message ", just once reported the information of relevant " line motor compressor ".The real high frequency oscillation formula compressor that belongs to of this type in the report, its mechanical reciprocating vibration very high frequency, synchronous with the electric main of 50 hertz or 60 hertz.Piston stroke is extremely short, and volume clearance efficient is extremely low.The Stroke Control that this on-mechanical pins down the type piston guarantees by having sacrificed sizable volume clearance efficient again.Therefore, only much smaller than the operating mode of 10 low compression ratio the time, it just can be in the poor efficiency work in the normal range (NR).And, therefore, generally only being fit to make hectowatt with interior small-power type again because it is in work under the high-frequency mechanical vibration state, its practical value is very limited, may seldom see this type on the present international market.
But this oscillating type type of being tended to act by line motor that almost will disappear has but been started another developing direction of piston compressor.Because it has omitted the link of " rotation flattens moving " this mechanical switch in the piston compressor that is driven by electric rotating machine, and, in case realized its long stroke work, after having determined its Maximum operating pressure (relevant) with power of motor, power of motor that is consumed and its piston stroke are just irrelevant, this just can be under the prerequisite that does not change (raising) power of motor, for the stroke (its volume clearance efficient also increases substantially) that increases substantially piston has been created condition thereupon.
Yet, in the piston compressor that adopts linear electric motor to tend to act, again owing to two following key issues fail to solve always, to make such high efficiency (high compression ratio) type fail to come out always:
One. when the normal piston that back and forth moves moves when commutating at every turn, all can force the work of linear electric motor to be in periodic starting state, like that, the power consumption of linear electric motor must be so great that surprising, is worth so that lost the existence of this new architecture fully.
Two. when using linear electric motor as power, change to some extent under the situation of (unavoidably), still be difficult to control exactly the stroke that this on-mechanical pins down the type piston at work compression ratio according to the existing piston air cylinder structure.
Automatically controlled piston stroke also is a kind of method, but because its degree of reliability is not high enough, still under test at present.A kind of reciprocating-piston compressor that can control stroke that discloses in by (A) US-4067667 as far back as on January 10th, 1978 also is an a kind of technological scheme attempting to solve this class problem.
The present invention is that the employing linear electric motor are power, set about from solving above-mentioned two big key issues (Stroke Control of piston and commutation start) again, the existing piston reciprocal compressor is carried out the improvement that a kind of purpose is to increase substantially its work compression ratio or exhaust efficiency.Its general provisions are: overlength stroke of piston operation (irrelevant with power of motor) and low reciprocating frequence.
The present invention is achieved in that
One. its structure and work characteristics:
A. structurally comprise at least: a. is as the structure of the linear motion actuator of power plant: the mover component that is in straight reciprocating motion by it is done straight reciprocating motion by link rod and the direct driven plunger of universal joint; B. the cylinder of peripheral hardware water-cooling heat radiating device: its exhaust port position is to adopt the full structural type that opens wide to the turnover of piston; C. control the back and forth transfer switch device of operation of linear electric motor: when piston was done compression and air-breathing merit, its continued power was done the electric power merit, and when the piston commutation started, it was stopped power supply and avoids the electric power acting.
B. after piston diameter and power of motor were determined, the piston stroke in the cylinder was more than 1.8 times of its diameter.
Two. the piston of normal operation is back and forth to move under the situation that on-mechanical pins down, and the Stroke Control of piston and commutation start-up control are to rely on " pressure " acting of two ends height draught head to implement:
A. permitting needs piston go out the non-electricity stroke control method that cylinder reduces the Stroke Control requirement significantly:
Piston dependence this moment its own inertial heads on exhaust valve plate and will go out cylinder, and relying on the cylinder end afterwards again is that established high-pressure retrains the scope that its stroke changes at least, in this process, directly done work by difference force, and electric power does not do work.
Non-electricity controlling method when B. commutation starts after piston is gone out cylinder:
This moment, piston relied on the high pressure (to the pressure reduction of low pressure) that the cylinder end has formed, and drove its commutation and oppositely accelerated to speed V, in this process, still directly done work by difference force, and electric power did not do work.--have only after piston reverses direction accelerates to V, electric power just begins to recover acting, that is: driven plunger is done compression and air-breathing merit again.
In addition: the cylinder coolig system under superelevation compression ratio operating conditions, adopt the water-cooling heat radiating device that is formed by the double spiral stream guidance body that dispels the heat of water conservancy diversion to constitute usually; The cylinder mouth of cylinder and the top of piston when contacting with exhaust valve plate simultaneously, can not form the clearance space (except the glade plane space of oil filling) that is made of any solid geometry shape between the three.
The present invention's characteristics compared with the prior art:
One. because power of motor of the present invention is only relevant with the piston stroke that relates to the size of exerting oneself, and it is irrelevant with the piston stroke that relates to volume clearance efficient, according to the need and possibility, can be under the constant prerequisite of power of motor and piston diameter, the lengthening as far as possible (dwindling the clearance ratio row) by piston stroke increases substantially work compression ratio of the present invention or exhaust efficiency has been created condition;
Two. because piston of the present invention, cylinder and exhaust valve plate three have constituted the exhaust structure of no air gap shape, this has created condition for improving overall volume clearance efficient of the present invention (dwindling the clearance ratio row) again;
Three. the commutation when normally moving owing to piston of the present invention starts merit, rely on difference force to finish, and can avoid electric power to participate in doing this commutation startup merit of piston simultaneously, this has just created condition for making linear electric motor be applied to this class Reciprocatory mechanical device of piston reciprocating compressor;
Four. and since running state of the present invention (long stroke and low frequency) determine that its linear motor rotor and the air gap between the stator can be done minimumly, make linear electric motor be applied in the electrical efficiency that can give play to maximum when of the present invention and created condition.
Fig. 1 is the structure principle chart as one embodiment of the invention.
Fig. 2 is the power supply the principle figure among the embodiment.
1: cylinder head; 2: water-cooling heat radiating device; 3: limit spring; 4: suction valve chip; 5: piston; 6: staor winding; 7: mover component; 8: low-pressure chamber; 9: bearing; 10: cylinder; 11: exhaust valve plate; 12: link rod; 13: the transfer switch device; 14: base; 15: universal joint; 16: the spiral stream guidance body that water conservancy diversion is held concurrently heat radiation; 17: plenum chamber; T: the time period of electric power acting; T: the time period of avoiding the electric power acting.
By shown in Figure 1:
Staor winding among the present invention " 6 " and mover component " 7 " have been formed the linear AC motor driving mechanism, Ac is by go up the transverse horizontal shifting magnetic field that produces at staor winding " 6 ", the mover component " 7 " of tending to act is done transverse horizontal motion, and mover component " 7 " to be universal joint " 15 " by link rod " 12 " two ends impel the piston " 5 " at their two ends to do compression work and air-breathing merit respectively.The major function of limit spring " 3 " is to make exhaust valve plate " 11 " location.Plenum chamber " 17 " is made of the end position and the cylinder head " 1 " of cylinder " 10 ".
At this moment, the piston at two ends " 5 " is just at right lateral: the piston " 5 " in left hand cylinder " 10 ", by the suction valve chip of opening in the middle of it " 4 ", just air-breathing from low-pressure chamber " 8 " (air-breathing method is a downflow type), and the piston " 5 " in right cylinder " 10 " is just heading on exhaust valve plate " 11 " and is going out cylinder " 10 ".At this moment, the pressurized gas that will be compressed in right cylinder " 10 " are all discharged from cylinder " 10 ".
--allow piston " 5 " to go out cylinder " 10 ", just can reduce the requirement to piston " 5 " Stroke Control significantly, this important techniques that is why the present invention can set up guarantees.
When piston " 5 " is gone out cylinder " 10 " beginning, transfer switch device " 13 " is promptly stopped power supply, since about two pistons " 5 " two ends mainly be the effect of height difference force, can force piston " 5 " to stop right lateral very soon, and begin in the other direction left lateral immediately.When the piston " 5 " of left lateral is accelerated to (afterwards if the unregulated power acting will reduce speed now again) when having the highest speed V by that height difference force again, transfer switch device " 13 " just begin to restore electricity (opposite polarity power supply), impel the electric power of mutual displacement to produce between staor winding " 6 " and the mover component " 7 ", allow the piston " 5 " in left side begin to do compression work, and the piston on right side " 5 " is done air-breathing merit, heading on exhaust valve plate " 11 " when going out cylinder " 10 " up to the piston " 5 " in left side, transfer switch device " 13 " is just stopped power supply, and begins the process that piston " 5 " commutation that repetition mainly tended to act by the height difference force starts again.
This moment that begins to stop power supply in the running of above-mentioned piston " 5 " left and right sides, can be chosen in piston " 5 " head on exhaust valve plate " 11 " when going out cylinder " 10 " slightly before or after a while time period internal modulation.
--guaranteeing that electric power avoids participating in doing the periodicity " commutation start merit " of piston " 5 " when normally moving, is that another important techniques why the present invention can set up guarantees.
Certainly, have only when compressor and just start working, and the height pressure reduction (work compression ratio) of its internal body still before the no show rating value, just done work by electric power fully and finish by this " initially " of piston " 5 " " commutation starts merit ".
By shown in Figure 2:
When the piston " 5 " of an end do compression work and after the exhaust merit, and in the trip segment of the piston of the other end " 5 " when doing air-breathing merit, be the time period " T " of electric power acting.
When the piston " 5 " of an end is done pure exhaust merit and the piston " 5 " of the other end is still being done when air-breathing, that is: piston " 5 " heads in the process time section of exhaust valve plate " 11 " when going out cylinder " 10 ", and piston after this " 5 ", being tended to act and do by the pressure at two ends difference " commutation starts merit " and the piston " 5 " of the other end has begun to do in the process time section of initial stage during compression work, is the time period " t " of avoiding the electric power acting.
Transfer switch device " 13 " needs automatic conversion power supply polarity, just can become to making piston " 5 " to do commutation and start merit.
Relevant issues in the relevant the invention process:
One. because the mover component " 7 " of driven plunger " 5 " operation is in low frequency and lower-speed state operation down among the present invention, therefore, air gap between staor winding " 6 " and the mover component " 7 " can be done minimumly, even less than level with the electric rotating machine of magnitude, electromagnetic efficiency after handling like this will be greatly improved, in the electrical efficiency that improves linear electric motor is extremely beneficial, and this can remedy linear electric motor and exist unfavorable that limit end effect problem is caused.
Two. because the present invention is a kind of type that the existing compression system that needs the multistage compression process can be reduced to the single stage compression system, therefore, under the operating mode of superelevation compression ratio, its cooling system should adopt effect water-cooling heat radiating device " 2 " preferably, for improving its cooling effect again, can also and then improve the water temperature of the flow velocity and the reduction cooling water of cooling water.
Three. because cylinder " 10 " among the present invention and piston " 5 " and exhaust valve plate " 11 " three will form the exhaust structure of no air gap type, that is: do not have clearance space between the above-mentioned three when piston " 5 " goes out inlet casing " 10 ", this raising for whole volume clearance efficient is extremely beneficial.
Claims (4)
1. the irrelevant superelevation compression ratio type piston compressor of power of motor and piston stroke, its structure and work characteristics:
A. structurally comprise at least:
A. as the structure of the linear motion actuator of power plant: the mover component " 7 " that is in straight reciprocating motion by it drives
Piston " 5 " is done straight reciprocating motion;
B. the cylinder " 10 " of peripheral hardware water-cooling heat radiating device " 2 ": its exhaust port position is to piston " 5 "
Go out into is to adopt the structural type that opens wide fully;
C. control the back and forth transfer switch device " 13 " of operation of linear electric motor: when piston " 5 " do compression and
During air-breathing merit, its continued power is done the electric power merit, and when piston " 5 " commutation started, it was stopped power supply and avoids
The electric power acting;
B. after piston " 5 " diameter and power of motor were determined, piston " 5 " stroke in the cylinder " 10 " was its diameter
More than 1.8 times;
2. the Stroke Control of piston " 5 " when normally moving in the irrelevant superelevation compression ratio type piston compressor claim 1 of power of motor and piston stroke and " non-electricity " method of commutation start-up control:
A. permitting needs piston go out " non-electricity " controlling method that cylinder reduces the Stroke Control requirement significantly:
Piston this moment " 5 " relies on its own inertial to head on exhaust valve plate " 11 " will go out cylinder " 10 ",
Relying on cylinder " 10 " end afterwards again is that established high-pressure retrains the scope that its stroke changes at least,
In this process, directly do work by difference force, and electric power does not do work;
B. " non-electricity " controlling method when piston " 5 " commutation starts:
Piston this moment " 5 " relies on the high pressure (to the pressure reduction of low pressure) that cylinder " 10 " end has formed,
Drive its commutation and oppositely accelerate to speed V, in this process, still directly do work by difference force, and electric power
Do not do work.--have only after piston " 5 " oppositely accelerates to V, electric power just begins acting, that is: drive again
Moving piston " 5 " is done compression and air-breathing merit;
3. according to claim 1 and 2 described power of motor and the irrelevant superelevation compression ratio type piston compressor of piston stroke, it is characterized in that: described water-cooling heat radiating device " 2 ", it is to be made of the double spiral stream guidance body " 16 " that dispels the heat of water conservancy diversion;
4. according to the irrelevant superelevation compression ratio type piston compressor of claim 1,2 and 3 described power of motor and piston stroke, it is characterized in that: described cylinder " 10 ", when its top of cylinder mouth and piston " 5 ", the two simultaneously with exhaust valve plate " 11 " when contacting, can not form the clearance space of any solid geometry shape between their threes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011356278A CN100387837C (en) | 2001-10-08 | 2001-10-08 | Piston-type compressor with ultrahigh compression ratio and independence of motor power from piston stroke |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011356278A CN100387837C (en) | 2001-10-08 | 2001-10-08 | Piston-type compressor with ultrahigh compression ratio and independence of motor power from piston stroke |
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| Publication Number | Publication Date |
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| CN1363770A true CN1363770A (en) | 2002-08-14 |
| CN100387837C CN100387837C (en) | 2008-05-14 |
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| CNB011356278A Expired - Fee Related CN100387837C (en) | 2001-10-08 | 2001-10-08 | Piston-type compressor with ultrahigh compression ratio and independence of motor power from piston stroke |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100408855C (en) * | 2004-01-08 | 2008-08-06 | Lg电子株式会社 | Linear compressor and method for controlling the same |
| CN102261321A (en) * | 2010-08-30 | 2011-11-30 | 梁嘉麟 | All-clearance-free structure design scheme for piston reciprocating compressor |
| CN109944768A (en) * | 2017-12-21 | 2019-06-28 | 汉斯克国际有限公司 | Electric drive gas booster |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1004505B (en) * | 1986-07-11 | 1989-06-14 | 梁嘉麟 | Motor power of compressor independent of piston stroke |
| CN2098558U (en) * | 1991-08-22 | 1992-03-11 | 上海柴油机厂 | Cylinder cover with spiral groove |
-
2001
- 2001-10-08 CN CNB011356278A patent/CN100387837C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100408855C (en) * | 2004-01-08 | 2008-08-06 | Lg电子株式会社 | Linear compressor and method for controlling the same |
| CN102261321A (en) * | 2010-08-30 | 2011-11-30 | 梁嘉麟 | All-clearance-free structure design scheme for piston reciprocating compressor |
| CN109944768A (en) * | 2017-12-21 | 2019-06-28 | 汉斯克国际有限公司 | Electric drive gas booster |
| US11519402B2 (en) | 2017-12-21 | 2022-12-06 | Haskel International, Llc | Electric driven gas booster |
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| Publication number | Publication date |
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| CN100387837C (en) | 2008-05-14 |
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Owner name: CHINA METROLOGY COLLEGE Free format text: FORMER OWNER: LIANG JIALIN Effective date: 20070119 |
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Effective date of registration: 20070119 Address after: 310018 Xiasha Higher Education Zone, Zhejiang, Hangzhou Province, China Jiliang University Applicant after: China Jiliang University Address before: 310012 China Jiliang University, Xueyuan Road, Hangzhou, 129, Zhejiang Applicant before: Liang Jialin |
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