CN106014942A - Continuous compression natural gas compressor - Google Patents
Continuous compression natural gas compressor Download PDFInfo
- Publication number
- CN106014942A CN106014942A CN201610323829.4A CN201610323829A CN106014942A CN 106014942 A CN106014942 A CN 106014942A CN 201610323829 A CN201610323829 A CN 201610323829A CN 106014942 A CN106014942 A CN 106014942A
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- China
- Prior art keywords
- natural gas
- cavity
- gas compressor
- valve
- cavity volume
- Prior art date
- 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.)
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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
- F04B45/041—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms double acting plate-like flexible pumping member
-
- 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
- F04B25/00—Multi-stage pumps
-
- 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
- F04B39/06—Cooling; Heating; Prevention of freezing
-
- 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
- F04B39/10—Adaptations or arrangements of distribution members
-
- 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
- F04B39/16—Filtration; Moisture separation
-
- 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
- F04B45/043—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms two or more plate-like pumping flexible members in parallel
-
- 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
- F04B45/045—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms with in- or outlet valve arranged in the plate-like pumping flexible members
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
- Compressor (AREA)
Abstract
The invention discloses a continuous compression natural gas compressor. The continuous compression natural gas compressor comprises a shell, a plurality of check valves, a plurality of deformation sheets, a first thin film, a second thin film, a crankshaft, a mounting frame, a plurality of connecting parts and a driving unit. The shell is provided with a gas inlet, a gas outlet and a plurality of mounting holes. A gas storage cavity and a plurality of accommodating cavities are formed in the shell, and the multiple accommodating cavities are arranged in sequence and correspond to the multiple mounting holes in a one-to-one mode. The gas storage cavity is located on the downstream side of the accommodating cavities. The multiple deformation sheets are arranged in the multiple accommodating cavities correspondingly. The edges of the deformation sheets are in sealing connection with the side walls of the accommodating cavities. Each accommodating cavity is divided into an upper chamber and a lower chamber from top to bottom through the corresponding deformation sheet. The lower chamber located on the uppermost upstream side communicates with the gas inlet, and the lower chamber located on the lowermost downstream side communicates with the gas storage cavity through the gas outlet. The continuous compression natural gas compressor is good in compression effect of natural gas.
Description
Technical field
The present invention relates to Compressor Technology field, particularly relate to a kind of compressed natural gas compressor continuously.
Background technology
Natural gas is a kind of preferable automobile-used alternative energy source, and its application technology reaches its maturity through many decades development.
It has the features such as low cost, high efficiency, pollution-free, use safe and convenient, the most day by day demonstrates powerful
Development potentiality.In recent years, constantly promoting gas combustion automobile along with country, the quantity of Gas Filling Stations in Cities constantly rises.
Natural gas compressor will directly affect the operation at full station as the key equipment of natural gas filling station, its performance.
Existing compressor arrangement is complicated, and volume is big, noise is big, and abrasion is relatively big, and pressure effect is not ideal enough,
Service life is short, is further improved.
Summary of the invention
In order to solve technical problem present in background technology, the present invention proposes a kind of compressed natural gas continuously
Compressor, effective.
A kind of compressed natural gas compressor continuously, including housing, multiple check valve, multiple deformation sheet, first
Thin film, the second thin film, bent axle, installing rack, multiple connector, driver element；
Housing is provided with air inlet, venthole, multiple installing hole, is provided with air storing cavity, multiple cavity volume in housing,
Multiple cavity volumes are arranged in order, and multiple cavity volumes are arranged with multiple installing hole one_to_one corresponding；Air storing cavity is positioned at cavity volume
Downstream；
Multiple deformation sheets are respectively placed in multiple cavity volume, and the edge of deformation sheet is tightly connected with the sidewall of cavity volume,
Cavity volume is divided into upper chamber, lower chambers by deformation sheet from top to bottom；It is positioned at lower chambers and the air inlet of side, most upstream
Connection, the lower chambers being positioned at most downstream side is connected with air storing cavity by venthole；
Two lower chambers of arbitrary neighborhood are all connected by interface channel；It is mounted on check valve on each interface channel；
The first film is placed in the bottom chamber of side, most upstream, and the first end of the first film is side walls hinged with cavity volume,
Second end of the first film is free end, and the first film is used for closing or opening air inlet；
Second thin film is placed in air storing cavity, and the first end of the second thin film is side walls hinged with cavity volume, the second thin film
The second end be free end, the second thin film is used for closing or opening venthole；
Bent axle is placed in the top of casing, and bent axle is rotationally connected with installing rack, and bent axle is provided with multiple connection axle journal,
Multiple connection axle journals are arranged with multiple cavity volume one_to_one corresponding；
Multiple connectors are respectively placed in multiple installing hole, and above-mentioned deformation sheet is hinged with connector, and deformation sheet leads to
Cross connector and be rotationally connected with being connected axle journal；
Driver element is used for driving crank rotation.
Preferably, it is additionally provided with drying chamber in housing；
Also include that heater, drying tube, heater, drying tube are placed in drying chamber；The first of drying tube
End connects with air storing cavity, and the second end of drying tube is connected with the external world.
Preferably, the middle part curl of drying tube is arranged.
Preferably, also include impurity removing unit, impurity removing unit include main exhaust, secondary exhaustor, filter screen, the
One valve, the second valve, the 3rd valve；First end of main exhaust is connected with the second end of drying tube, main
Second end of exhaustor is connected with the external world；First end of secondary exhaustor connects with main exhaust, secondary exhaustor
Second end downwardly extends；First end of filter screen is placed in secondary exhaustor, and the second end of filter screen withstands on main exhaust
On the inner circumferential surface of tube wall；
First valve, the second valve are installed on main exhaust and are respectively placed in the both sides of filter screen；
Preferably, the 3rd valve is arranged on secondary exhaustor.
Preferably, the quantity of impurity removing unit is two.
Preferably, housing being additionally provided with air-vent, above-mentioned upper chamber is in communication with the outside by air-vent.
In the present invention, utilize driver element to drive crank rotation, bent axle by connector band dynamic deformation sheet constantly,
Deformation repeatedly.
The deformation direction of two deformation sheets adjacent one another are is contrary, in Fig. 1, from left to right, and first deformation
Sheet is downwardly convex, therefore the pressure of first bottom chamber increases, owing to the first film covers air inlet,
Under the effect of air pressure, check valve is opened, and the gas of first bottom chamber enters second time through interface channel
In chamber, now second deformation sheet raises up, and the second bottom chamber pressure reduces, it is simple to gas enters.
3rd deformation sheet is downwardly convex, and the 3rd bottom chamber gas is pushed the second thin film open and entered in air storing cavity.
Bent axle is rotated further, first deformation sheet, second deformation sheet, the 3rd deformation sheet reversal deformation,
Ambient atmos enters first lower chambers through air inlet, and the gas of second bottom chamber is through interface channel
Enter the 3rd bottom chamber.The most repeatedly, constantly circulate, gas is repeatedly pressurizeed.
Gas in air storing cavity enters in drying tube, in drying chamber, utilizes heater to add drying tube
Heat, the moisture of gas in removing drying tube, and then dry natural gas is outwardly provided.
Gas enters in main exhaust, utilizes filter screen to carry out remove impurity, in order to outwardly to provide pure gas.
By arranging two impurity removing unit, it is used separately, utilizes an impurity removing unit every time, when needs are removed
On filter screen during impurity, close the first valve, the second valve, utilize another impurity removing unit remove impurity.
Opening the 3rd valve, under the influence of air pressure, the foreign material on filter screen are blown out by gas, also allow for filter
Net is carried out.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment
Combination that can be mutual；Below with reference to the accompanying drawings and in conjunction with the embodiments to the present invention elaborate.
With reference to Fig. 1:
A kind of compressed natural gas compressor continuously that the present invention proposes, including housing 1, multiple check valve 2, many
Individual deformation sheet 3, the first film the 4, second thin film 5, bent axle 6, installing rack 7, multiple connector 8, driving
Unit, heater 15,16, two impurity removing unit of drying tube.
Housing 1 is provided with air inlet 9, venthole 10, air-vent, multiple installing hole 11, sets in housing 1
Having air storing cavity 12, multiple cavity volume, multiple cavity volumes are arranged in order, multiple cavity volumes and multiple installing holes 11 1 a pair
Should arrange；Air storing cavity 12 is positioned at the downstream of cavity volume.
Multiple deformation sheets 3 are respectively placed in multiple cavity volume, and the edge of deformation sheet 3 seals even with the sidewall of cavity volume
Connecing, cavity volume is divided into upper chamber, lower chambers by deformation sheet 3 from top to bottom；Be positioned at the lower chambers of side, most upstream with
Air inlet 9 connects, and the lower chambers being positioned at most downstream side is connected with air storing cavity 12 by venthole 10.
Two lower chambers of arbitrary neighborhood are all connected by interface channel 13；It is mounted on each interface channel 13
Check valve 2；
The first film 4 is placed in the bottom chamber of side, most upstream, the first end of the first film 4 and the sidewall of cavity volume
Hinged, the second end of the first film 4 is free end, and the first film 4 is used for closing or open air inlet 9.
Second thin film 5 is placed in air storing cavity 12, and the first end of the second thin film 5 is side walls hinged with cavity volume, the
Second end of two thin film 5 is free end, and the second thin film 5 is used for closing or open venthole 10.
Bent axle 6 is placed in the top of casing, and bent axle 6 is rotationally connected with installing rack 7, and bent axle 6 is provided with multiple
Connecting axle journal, multiple connection axle journals are arranged with multiple cavity volume one_to_one corresponding, and arbitrary neighborhood two connects axle journal and divides
It is not positioned at the both sides at crank rotation center.
Multiple connectors 8 are respectively placed in multiple installing hole 11, and above-mentioned deformation sheet 3 is hinged with connector 8,
Deformation sheet 3 is rotationally connected with being connected axle journal by connector 8.
Driver element is used for driving bent axle 6 to rotate.
In the present embodiment, in housing 1, it is additionally provided with drying chamber 14；Heater 15, drying tube 16 are placed in doing
In dry chamber 14；First end of drying tube 16 connects with air storing cavity 12.
In the present embodiment, the middle part curl of drying tube 16 is arranged；Improve drying time, improve and be dried effect
Really.
Impurity removing unit includes main exhaust 17, secondary exhaustor 18, filter screen the 19, first valve the 20, second valve
Door the 21, the 3rd valve 22；First end of main exhaust 17 is connected with the second end of drying tube 16, main exhaust
Second end of pipe 17 is connected with the external world；First end of secondary exhaustor 18 connects with main exhaust 17, secondary aerofluxus
Second end of pipe 18 downwardly extends；First end of filter screen 19 is placed in secondary exhaustor 18, the of filter screen 19
Two ends withstand on the inner circumferential surface of main exhaust 17 tube wall.
First valve the 20, second valve 21 is installed on main exhaust 17 and is respectively placed in the two of filter screen 19
Side.
3rd valve 22 is arranged on secondary exhaustor 18.
Above-mentioned upper chamber is in communication with the outside by air-vent；Reduce the resistance of deformation sheet 3 deformation.
Rotating with driver element band dynamic crankshaft 6, bent axle 6 is by connector 8 band dynamic deformation sheet 3 constantly, instead
Multiple deformation.
The deformation direction of two deformation sheets 3 adjacent one another are is contrary, in Fig. 1, from left to right, and first change
Shape sheet 3 is downwardly convex, therefore the pressure of first bottom chamber increases, owing to the first film 4 covers air inlet
Hole 9, under the influence of air pressure, check valve 2 is opened, and the gas of first bottom chamber is through interface channel
13 enter the second bottom chamber, and now second deformation sheet 3 raises up, and the second bottom chamber pressure reduces,
It is easy to gas enter.3rd deformation sheet 3 is downwardly convex, and the 3rd bottom chamber gas pushes the second thin film 5 open
Enter in air storing cavity 12.
Bent axle 6 is rotated further, and first deformation sheet 3, second deformation sheet 3, the 3rd deformation sheet 3 are reverse
Deformation, ambient atmos enters first lower chambers through air inlet 9, and the gas of second bottom chamber passes through
Interface channel 13 enters the 3rd bottom chamber.The most repeatedly, constantly circulate, gas is repeatedly added
Pressure.
Gas in air storing cavity 12 enters in drying tube 16, in drying chamber 14, utilizes heater 15 right
Drying tube 16 heats, the moisture of gas in removing drying tube 16, and then outwardly provides dry sky
So gas.
Gas enters in main exhaust 17, utilizes filter screen 19 to carry out remove impurity, in order to outwardly to provide pure
Gas.
By arranging two impurity removing unit, it is used separately, utilizes an impurity removing unit every time, when needs are removed
On filter screen 19 during impurity, close first valve the 20, second valve 21, utilize another impurity removing unit remove impurity.
Opening the 3rd valve 22, under the influence of air pressure, the foreign material on filter screen 19 are blown out by gas, also allow for
Filter screen 19 is carried out.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention not office
Being limited to this, any those familiar with the art is in the technical scope that the invention discloses, according to this
The technical scheme of invention and inventive concept thereof in addition equivalent or change, all should contain the protection in the present invention
Within the scope of.
Claims (6)
1. a continuous compressed natural gas compressor, it is characterised in that include housing, multiple check valve, many
Individual deformation sheet, the first film, the second thin film, bent axle, installing rack, multiple connector, driver element；
Housing is provided with air inlet, venthole, multiple installing hole, is provided with air storing cavity, multiple cavity volume in housing,
Multiple cavity volumes are arranged in order, and multiple cavity volumes are arranged with multiple installing hole one_to_one corresponding；Air storing cavity is positioned at cavity volume
Downstream；
Multiple deformation sheets are respectively placed in multiple cavity volume, and the edge of deformation sheet is tightly connected with the sidewall of cavity volume,
Cavity volume is divided into upper chamber, lower chambers by deformation sheet from top to bottom；It is positioned at lower chambers and the air inlet of side, most upstream
Connection, the lower chambers being positioned at most downstream side is connected with air storing cavity by venthole；
Two lower chambers of arbitrary neighborhood are all connected by interface channel；It is mounted on check valve on each interface channel；
The first film is placed in the bottom chamber of side, most upstream, and the first end of the first film is side walls hinged with cavity volume,
Second end of the first film is free end, and the first film is used for closing or opening air inlet；
Second thin film is placed in air storing cavity, and the first end of the second thin film is side walls hinged with cavity volume, the second thin film
The second end be free end, the second thin film is used for closing or opening venthole；
Bent axle is placed in the top of casing, and bent axle is rotationally connected with installing rack, and bent axle is provided with multiple connection axle journal,
Multiple connection axle journals are arranged with multiple cavity volume one_to_one corresponding；
Multiple connectors are respectively placed in multiple installing hole, and above-mentioned deformation sheet is hinged with connector, and deformation sheet leads to
Cross connector and be rotationally connected with being connected axle journal；
Driver element is used for driving crank rotation.
Continuous compressed natural gas compressor the most according to claim 1, it is characterised in that in housing also
It is provided with drying chamber；
Also include that heater, drying tube, heater, drying tube are placed in drying chamber；The first of drying tube
End connects with air storing cavity, and the second end of drying tube is connected with the external world.
Continuous compressed natural gas compressor the most according to claim 2, it is characterised in that drying tube
Middle part curl is arranged.
Continuous compressed natural gas compressor the most according to claim 2, it is characterised in that also include removing
Different kinds of bonding units, impurity removing unit include main exhaust, secondary exhaustor, filter screen, the first valve, the second valve, the
Three valves；First end of main exhaust is connected with the second end of drying tube, and the second end of main exhaust is with extraneous
Connect；First end of secondary exhaustor connects with main exhaust, and the second end of secondary exhaustor downwardly extends；Filter screen
The first end be placed in secondary exhaustor, the second end of filter screen withstands on the inner circumferential surface of main exhaust tube wall；
First valve, the second valve are installed on main exhaust and are respectively placed in the both sides of filter screen；
3rd valve is arranged on secondary exhaustor.
Continuous compressed natural gas compressor the most according to claim 4, it is characterised in that impurity removing unit
Quantity be two.
Continuous compressed natural gas compressor the most according to claim 1, it is characterised in that on housing also
Being provided with air-vent, above-mentioned upper chamber is in communication with the outside by air-vent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610323829.4A CN106014942B (en) | 2016-05-13 | 2016-05-13 | A kind of continuous compression natural gas compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610323829.4A CN106014942B (en) | 2016-05-13 | 2016-05-13 | A kind of continuous compression natural gas compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106014942A true CN106014942A (en) | 2016-10-12 |
| CN106014942B CN106014942B (en) | 2019-06-04 |
Family
ID=57097921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610323829.4A Active CN106014942B (en) | 2016-05-13 | 2016-05-13 | A kind of continuous compression natural gas compressor |
Country Status (1)
| Country | Link |
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| CN (1) | CN106014942B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB403660A (en) * | 1932-06-24 | 1933-12-27 | Frederick William Wilson | Improvements relating in air compressors |
| CN2355126Y (en) * | 1998-12-25 | 1999-12-22 | 常财刚 | Twist air pump |
| CN201190647Y (en) * | 2008-04-23 | 2009-02-04 | 英维康医疗器械（苏州）有限公司 | Split type gas compressor |
| US20140259664A1 (en) * | 2013-03-12 | 2014-09-18 | Mcalister Technologies, Llc | Insert kits for multi-stage compressors and associated systems, processes and methods |
| CN204099165U (en) * | 2014-04-14 | 2015-01-14 | 沈阳远大压缩机股份有限公司 | The y-type filter of gas compressor |
| CN204239235U (en) * | 2014-11-25 | 2015-04-01 | 淮南市华源矿用机电设备厂 | A kind of membrane pump with pneumatic drive being convenient to removal of impurities |
| CN105545715A (en) * | 2016-01-27 | 2016-05-04 | 蚌埠移山压缩机制造有限公司 | Marsh gas compressor good in leakproofness |
-
2016
- 2016-05-13 CN CN201610323829.4A patent/CN106014942B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB403660A (en) * | 1932-06-24 | 1933-12-27 | Frederick William Wilson | Improvements relating in air compressors |
| CN2355126Y (en) * | 1998-12-25 | 1999-12-22 | 常财刚 | Twist air pump |
| CN201190647Y (en) * | 2008-04-23 | 2009-02-04 | 英维康医疗器械（苏州）有限公司 | Split type gas compressor |
| US20140259664A1 (en) * | 2013-03-12 | 2014-09-18 | Mcalister Technologies, Llc | Insert kits for multi-stage compressors and associated systems, processes and methods |
| CN204099165U (en) * | 2014-04-14 | 2015-01-14 | 沈阳远大压缩机股份有限公司 | The y-type filter of gas compressor |
| CN204239235U (en) * | 2014-11-25 | 2015-04-01 | 淮南市华源矿用机电设备厂 | A kind of membrane pump with pneumatic drive being convenient to removal of impurities |
| CN105545715A (en) * | 2016-01-27 | 2016-05-04 | 蚌埠移山压缩机制造有限公司 | Marsh gas compressor good in leakproofness |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106014942B (en) | 2019-06-04 |
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Address after: 233000 No. 8319, Huangshan Avenue, Bengbu City, Anhui Province (101, building 4, North Industrial Zone, Bengbu base, shanglida science and Technology Park) Patentee after: Bengbu Jinpeng Compressor Manufacturing Co.,Ltd. Address before: 233000 intersection of COFCO Avenue and Yanshan Road, Bengbu City, Anhui Province Patentee before: BENGBU CITY JINPENG GAS EQUIPMENT MANUFACTURING Co.,Ltd. |
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