CN105804976B - Superposing type huge discharge diaphragm type compressor - Google Patents
Superposing type huge discharge diaphragm type compressor Download PDFInfo
- Publication number
- CN105804976B CN105804976B CN201610270408.XA CN201610270408A CN105804976B CN 105804976 B CN105804976 B CN 105804976B CN 201610270408 A CN201610270408 A CN 201610270408A CN 105804976 B CN105804976 B CN 105804976B
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- Prior art keywords
- oil
- hole
- soft
- distribution casing
- distribution plate
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
- F04B45/053—Pumps having fluid drive
- F04B45/0533—Pumps having fluid drive the fluid being actuated directly by a piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/125—Cylinder heads
Abstract
The invention discloses a kind of superposing type huge discharge diaphragm type compressor.It includes cylinder body, cylinder cap on cylinder body, at least provided with two groups of compression mechanisms being overlapped mutually in cylinder body, every group of compression mechanism includes oil distribution casing and gas distribution plate, diaphragm is provided between each pair oil distribution casing and gas distribution plate, piston is provided with cylinder body, the power end of piston connects flywheel by toggle, the side of flywheel is provided with repairing plunger pump, repairing fuel feed hole and superpressure spout hole are set on each oil distribution casing, repairing plunger pump is connected on repairing fuel feed hole, the outlet of superpressure spout hole connects a fuel tank, air admission hole and steam vent are respectively provided with gas distribution plate.After above-mentioned structure, gas distribution plate and oil distribution casing can reduce thickness, and to saving material, reducing difficulty of processing has positive role, is superimposed the mode of quantity with increase and decrease in addition and production cost is further reduced；Avoid oil guiding hole and the problem of the diaphragm position corresponding to air inlet/outlet is damaged.
Description
Technical field
The present invention relates to a kind of diaphragm type compressor, specifically a kind of superposing type huge discharge diaphragm type compressor.
Background technology
The compression section of traditional diaphragm type compressor mainly adds oil distribution casing blooming piece to add cylinder cap to form by cylinder body, and diaphragm will
Oil distribution casing and cylinder cap seal the curve-surface cavity to be formed and are divided into high-voltage oil cavity and high pressure air cavity, and head side surface side sets entering for air cavity
Gas port, venthole, cylinder body and cylinder cap will bear very High Voltage, so that does is more thick and heavy, make the compressor of huge discharge, generally
It is to increase cylinder body, oil distribution casing, the diameter of diaphragm and cylinder cap to realize that bearing the container of same pressure, diameter is bigger, thick
Degree is also bigger, and complete machine is heavy, cost of manufacture and difficulty increase.
In addition, curve-surface cavity is divided into high pressure air cavity and high-voltage oil cavity, oil pocket by existing diaphragm type compressor by diaphragm
Oil guiding hole is set on the oil distribution casing of side, and air cavity side cylinder cap sets air inlet/outlet, existing this structure, because oil gas both ends are present
Pressure difference, often makes diaphragm in reciprocal concussion and the moment of hole contact produces impulsive force, thus positioned at oil distribution casing oil guiding hole and
Diaphragm position corresponding to air inlet/outlet positioned at cylinder cap is particularly easy to damage.
The content of the invention
The present invention provides a kind of superposing type huge discharge diaphragm type compressor, the skill that the superposing type huge discharge diaphragm type compressor solves
One of art problem can increase discharge capacity in certain volume, and so as to reduce manufacture difficulty and reduce cost, the technology of solution is asked
The two of topic are can to avoid asking positioned at the diaphragm position damage corresponding to oil distribution casing oil guiding hole and air inlet/outlet positioned at cylinder cap
Topic.
In order to solve the above-mentioned technical problem, superposing type huge discharge diaphragm type compressor of the invention, including cylinder body, installed in cylinder
Cylinder cap on body, from bottom to up at least provided with two groups of compression mechanisms being overlapped mutually, every group of compressor between cylinder body and cylinder cap
Structure includes the oil distribution casing and gas distribution plate being arranged in pairs, and diaphragm, oil distribution casing are provided between each pair oil distribution casing and gas distribution plate
On be provided with the oil guiding hole positioned at oil pocket side, set on each oil distribution casing towards the repairing fuel feed hole of the oil pocket of oil distribution casing and super
Pressurized overflow hole, slippage pump are connected to after in line check valve on repairing fuel feed hole, and the outlet of superpressure spout hole is overflow by one
A fuel tank is connected after flowing valve, air admission hole and steam vent are respectively provided with the gas distribution plate in each group compression mechanism.
The piston below orlop compression mechanism set in the cylinder body, the power end of piston pass through crank connecting link
Mechanism connects flywheel, and the slippage pump that the side of the flywheel is set is a repairing plunger pump.
Connection in line check valve after the repairing fuel feed hole of oil distribution casing is parallel with one another in compression mechanism described in each group, it is each described
The superpressure overflow hole exits rear connection overflow valve parallel with one another of oil distribution casing.
The rear total breather check valve of connection parallel with one another of the air admission hole on gas distribution plate in compression mechanism described in each group, each group institute
State the venthole rear total exhaust check valve of connection parallel with one another on the gas distribution plate in compression mechanism.
The high-voltage oil cavity and high pressure air cavity that the oil distribution casing being arranged in pairs and gas distribution plate are divided into by the diaphragm, the high pressure
Oil pocket shoulder hole is provided with the end face of oil pocket, the oil guiding hole is the soft oil-hole plug being placed in oil pocket shoulder hole, described
Air cavity shoulder hole is provided with the end face of high pressure air cavity, the air admission hole and venthole are respectively to be placed in air cavity shoulder hole
Soft air inlet stopple and soft outlet stopple.
Sealing ring is provided between the oil distribution casing and gas distribution plate.
After above-mentioned structure, due in cylinder body from bottom to up at least provided with two groups of compression mechanisms being overlapped mutually,
Oil distribution casing and gas distribution plate pressure at both sides is set to cancel out each other by way of being overlapped mutually, so gas distribution plate and oil distribution casing can subtract
Few thickness, to saving material, reducing difficulty of processing has positive role, and the mode for being superimposed quantity with increase and decrease in addition is not changing machine
It can easily change discharge capacity in the case of seat, avoid the different present situation of traditional compressor different displacements support model, make production
Cost further reduces；Further, since set pyramidal structure oil pocket shoulder hole and air cavity shoulder hole and respectively with oil pocket
Soft oil-hole plug, soft air inlet stopple and the soft outlet stopple that shoulder hole and air cavity shoulder hole coordinate, thus when oil gas two
There is pressure difference in end, diaphragm can play cushioning effect in reciprocal concussion, so as to avoid be located at oil distribution casing oil guiding hole and positioned at
The problem of diaphragm position corresponding to the air inlet/outlet of gas disk is damaged.
Brief description of the drawings
Fig. 1 is the structural representation of superposing type huge discharge diaphragm type compressor of the present invention；
Fig. 2 is the structure diagram of superposing type huge discharge diaphragm type compressor of the present invention.
Embodiment
With reference to the accompanying drawings and detailed description, it is further detailed to the superposing type huge discharge diaphragm type compressor work of the present invention
Describe in detail bright.
As illustrated, the superposing type huge discharge diaphragm type compressor of the present invention, including cylinder body 1, the cylinder cap on cylinder body
2, from bottom to up at least provided with two groups of compression mechanisms being overlapped mutually between cylinder body 1 and cylinder cap 2, two are provided with the present embodiment
The compression mechanism that group is overlapped mutually, it is fixedly connected between cylinder body 1 and cylinder cap 2 by fastener and is pressed in compression mechanism wherein,
Every group of compression mechanism includes the oil distribution casing 17 and gas distribution plate 18 being arranged in pairs, between each pair oil distribution casing 17 and gas distribution plate 18
Diaphragm 19 is provided with, diaphragm 19 is high-voltage oil cavity 10 by oil distribution casing side, is high pressure air cavity 11 by gas distribution plate side, is set in cylinder body 1
There is the piston 3 below orlop compression mechanism, the power end of piston 3 connects flywheel 5, flywheel 5 by toggle 4
Side be provided with repairing plunger pump 6, set on each oil distribution casing 17 towards the repairing fuel feed hole 19 of the oil pocket of oil distribution casing and super
Pressurized overflow hole 20, repairing plunger pump 6 are connected to after in line check valve 7 on repairing fuel feed hole 19, and superpressure spout hole 20 goes out
Connect a fuel tank 9 mouthful after an overflow valve 8, air admission hole and exhaust are respectively provided with the gas distribution plate in each group compression mechanism
Hole, air admission hole connect air inlet pipe 22 after connecting breather check valve 21, blast pipe 24 are connected after steam vent connection exhaust check valve 23.
Connection in line check valve 7, the superpressure of each oil distribution casing after the repairing fuel feed hole 19 of oil distribution casing is parallel with one another in each group compression mechanism
Spout hole 20 export it is parallel with one another after connection overflow valve 8, after the air admission hole on gas distribution plate in each group compression mechanism is parallel with one another
Connect total breather check valve 25, the total outgassing nonreturn valve of connection after the venthole on gas distribution plate in each group compression mechanism is parallel with one another
26。
Further, the high-voltage oil cavity 10 and high pressure that the oil distribution casing being arranged in pairs and gas distribution plate are divided into by described diaphragm
Air cavity 11, sealing ring is provided between oil distribution casing 17 and gas distribution plate 18, oil pocket shoulder hole is provided with the end face of high-voltage oil cavity 10
12, oil guiding hole is the soft oil-hole plug 13 being placed in oil pocket shoulder hole, and air cavity shoulder is provided with the end face of high pressure air cavity 11
Hole 14, air admission hole and venthole are respectively soft air inlet stopple 15 and the soft outlet stopple 16 being placed in air cavity shoulder hole,
The material of described soft oil-hole plug, soft air inlet stopple and soft outlet stopple is elastomeric material, soft oil-hole plug 13,
The center of soft air inlet stopple 15 and soft outlet stopple 16 is through hole so as to form oilhole or stomata.
Wherein, oil pocket shoulder hole 12 and air cavity shoulder hole 14 are disposed as taper, soft oil-hole plug, soft air inlet stopple with
And soft outlet stopple is equally disposed as pyramidal structure, thus pressure difference be present when oil gas both ends, and diaphragm is back and forth shaking
Shi Buhui makes hole inaccessible, ensure that normal use, when soft oil-hole plug, soft air inlet stopple and soft outlet stopple are installed
Afterwards, the curved surface radian of its upper surface and oil distribution casing and gas distribution plate curved surface radian are quite and in same camberline.
Claims (8)
1. a kind of superposing type huge discharge diaphragm type compressor, including cylinder body（1）, the cylinder cap on cylinder body（2）, its feature exists
In：The cylinder body（1）And cylinder cap（2）Between from bottom to up at least provided with two groups of compression mechanisms being overlapped mutually, described in every group
Compression mechanism includes the oil distribution casing and gas distribution plate being arranged in pairs, and film is provided between oil distribution casing and gas distribution plate described in each pair
Piece, the oil distribution casing（1）On be provided with the oil guiding hole positioned at oil pocket side, set on each oil distribution casing towards oil distribution casing
The repairing fuel feed hole and superpressure spout hole of oil pocket, slippage pump pass through in line check valve（7）After be connected on repairing fuel feed hole, it is described
An overflow valve is passed through in the outlet of superpressure spout hole（8）A fuel tank is connected afterwards（9）, the gas distribution plate in compression mechanism described in each group
On be respectively provided with air admission hole and steam vent.
2. superposing type huge discharge diaphragm type compressor according to claim 1, it is characterised in that：It is additionally included in cylinder body（1）It is interior
The piston below orlop compression mechanism set（3）, piston（3）Power end pass through toggle（4）Connection
Flywheel（5）, the flywheel（5）Side set slippage pump be a repairing plunger pump（6）.
3. according to the superposing type huge discharge diaphragm type compressor described in claim 1, it is characterised in that：In compression mechanism described in each group
The repairing fuel feed hole rear connection in line check valve parallel with one another of oil distribution casing, the superpressure overflow hole exits of each oil distribution casing are mutual
Overflow valve is connected after parallel connection.
4. according to the superposing type huge discharge diaphragm type compressor described in claim 1, it is characterised in that：In compression mechanism described in each group
Gas distribution plate on air admission hole it is parallel with one another after the total breather check valve of connection, going out on the gas distribution plate in compression mechanism described in each group
The total exhaust check valve of connection after stomata is parallel with one another.
5. according to the superposing type huge discharge diaphragm type compressor described in claim 1, it is characterised in that：The diaphragm will be arranged in pairs
Oil distribution casing and the high-voltage oil cavity that is divided into of gas distribution plate（10）With high pressure air cavity（11）, it is provided with the end face of the high-voltage oil cavity
Oil pocket shoulder hole（12）, the oil guiding hole is the soft oil-hole plug being placed in oil pocket shoulder hole（13）, the high pressure air cavity
（11）End face on be provided with air cavity shoulder hole（14）, the air admission hole and venthole are respectively to be placed in air cavity shoulder hole
Soft air inlet stopple（15）With soft outlet stopple（16）.
6. according to the superposing type huge discharge diaphragm type compressor described in claim 5, it is characterised in that：The oil distribution casing and gas distribution plate
Between be provided with sealing ring.
7. according to the superposing type huge discharge diaphragm type compressor described in claim 6, it is characterised in that：The oil pocket shoulder hole is gentle
Chamber shoulder hole is disposed as taper, and the soft oil-hole plug, soft air inlet stopple and soft outlet stopple are equally disposed as
Pyramidal structure.
8. according to the superposing type huge discharge diaphragm type compressor described in claim 7, it is characterised in that：It is the soft oil-hole plug, soft
The material of matter air inlet stopple and soft outlet stopple is elastomeric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270408.XA CN105804976B (en) | 2016-04-27 | 2016-04-27 | Superposing type huge discharge diaphragm type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610270408.XA CN105804976B (en) | 2016-04-27 | 2016-04-27 | Superposing type huge discharge diaphragm type compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105804976A CN105804976A (en) | 2016-07-27 |
| CN105804976B true CN105804976B (en) | 2018-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610270408.XA Active CN105804976B (en) | 2016-04-27 | 2016-04-27 | Superposing type huge discharge diaphragm type compressor |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109356822B (en) * | 2018-09-11 | 2019-11-08 | 西安交通大学 | A kind of processing method of autoclave diaphragm compressor and its cylinder cap and cylinder cap |
| CN109404267A (en) * | 2018-09-27 | 2019-03-01 | 西安交通大学 | A kind of diaphragm type compressor and its gas flow adjusting method |
| CN109469603B (en) * | 2018-12-28 | 2020-10-27 | 西安交通大学 | High-pressure diaphragm compressor and oil supplementing system and method thereof |
| CN110942898B (en) * | 2019-11-22 | 2022-08-26 | 中车株洲电机有限公司 | Oil pump oil supplementing method for bullet train traction transformer |
| CN111271263A (en) * | 2020-03-30 | 2020-06-12 | 四川金星清洁能源装备股份有限公司 | Modular diaphragm compressor with large-displacement and multi-stage compression structure |
| CN112502948A (en) * | 2020-11-18 | 2021-03-16 | 安徽科海压缩机制造有限公司 | Novel diaphragm compressor |
| CN112431747B (en) * | 2020-11-23 | 2021-08-31 | 西安交通大学 | Full-automatic diaphragm compressor oil way system and starting method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR804430A (en) * | 1935-07-19 | 1936-10-23 | Improvement in compressors or diaphragm pumps | |
| FR864365A (en) * | 1940-03-26 | 1941-04-25 | Further development of diaphragm compressors | |
| GB1111602A (en) * | 1964-08-10 | 1968-05-01 | Compresseurs A Membrane Corbli | Improvements in or relating to diaphragm pumps and compressors |
| US3402667A (en) * | 1967-04-03 | 1968-09-24 | Panther Pumps & Equipment Co | Fluid power transfer apparatus |
| US6174144B1 (en) * | 1998-09-04 | 2001-01-16 | Bran + Luebbe Gmbh | Diaphragm piston pump |
| CN202560524U (en) * | 2012-03-15 | 2012-11-28 | 元宁企业有限公司 | Diaphragm compressor |
| CN103244393A (en) * | 2013-05-10 | 2013-08-14 | 北京京城压缩机有限公司 | Diaphragm type compressor integration cylinder body component with single cylinder body and multiple cylinder covers |
| CN105484897A (en) * | 2016-01-19 | 2016-04-13 | 江苏源之翼电气有限公司 | Hydraulic diaphragm sealing system of hot air engine |
| CN205654517U (en) * | 2016-04-27 | 2016-10-19 | 江苏源之翼电气有限公司 | Big discharge capacity diaphragm compressor of stack formula |
-
2016
- 2016-04-27 CN CN201610270408.XA patent/CN105804976B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR804430A (en) * | 1935-07-19 | 1936-10-23 | Improvement in compressors or diaphragm pumps | |
| FR864365A (en) * | 1940-03-26 | 1941-04-25 | Further development of diaphragm compressors | |
| GB1111602A (en) * | 1964-08-10 | 1968-05-01 | Compresseurs A Membrane Corbli | Improvements in or relating to diaphragm pumps and compressors |
| US3402667A (en) * | 1967-04-03 | 1968-09-24 | Panther Pumps & Equipment Co | Fluid power transfer apparatus |
| US6174144B1 (en) * | 1998-09-04 | 2001-01-16 | Bran + Luebbe Gmbh | Diaphragm piston pump |
| CN202560524U (en) * | 2012-03-15 | 2012-11-28 | 元宁企业有限公司 | Diaphragm compressor |
| CN103244393A (en) * | 2013-05-10 | 2013-08-14 | 北京京城压缩机有限公司 | Diaphragm type compressor integration cylinder body component with single cylinder body and multiple cylinder covers |
| CN105484897A (en) * | 2016-01-19 | 2016-04-13 | 江苏源之翼电气有限公司 | Hydraulic diaphragm sealing system of hot air engine |
| CN205654517U (en) * | 2016-04-27 | 2016-10-19 | 江苏源之翼电气有限公司 | Big discharge capacity diaphragm compressor of stack formula |
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| Publication number | Publication date |
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| CN105804976A (en) | 2016-07-27 |
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Effective date of registration: 20180223 Address after: Hongze District of Huaian city in 223001 Jiangsu County of Hongze Province east of Shuanggou Town Industrial Zone Applicant after: Source wing intelligent equipment manufacturing (Jiangsu) Co., Ltd. Address before: 212132 Zhenjiang City, Jiangsu Province, Zhenjiang New District, the town of Side Village Applicant before: JIANGSU YUANZHIYI ELECTRIC CO., LTD. |
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Effective date of registration: 20190605 Address after: 014000 Shenhua Science Park No. 1, Jiuyuan Industrial Park, Baotou City, Inner Mongolia Autonomous Region Patentee after: Baotou Yingde Gas Co., Ltd. Address before: 223001 industrial zone of East double ditch town, Hongze District, Hongze, Huaian, Jiangsu Patentee before: Source wing intelligent equipment manufacturing (Jiangsu) Co., Ltd. |