CN108331733A - A kind of open-type second vapor injection two-cylinder piston refrigeration compressor - Google Patents
A kind of open-type second vapor injection two-cylinder piston refrigeration compressor Download PDFInfo
- Publication number
- CN108331733A CN108331733A CN201810441724.8A CN201810441724A CN108331733A CN 108331733 A CN108331733 A CN 108331733A CN 201810441724 A CN201810441724 A CN 201810441724A CN 108331733 A CN108331733 A CN 108331733A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- vapor injection
- open
- plunger
- extra block
- 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.)
- Pending
Links
- 238000005057 refrigeration Methods 0.000 title claims abstract description 27
- 238000002347 injection Methods 0.000 title claims abstract description 26
- 239000007924 injection Substances 0.000 title claims abstract description 26
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 16
- 230000001502 supplementing effect Effects 0.000 claims abstract description 10
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- 230000000740 bleeding effect Effects 0.000 claims description 5
- 238000001816 cooling Methods 0.000 abstract description 4
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000004141 microcephaly Diseases 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 244000089486 Phragmites australis subsp australis Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- 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
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/005—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders with two cylinders
-
- 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
- F04B39/123—Fluid connections
Abstract
The present invention discloses a kind of open-type second vapor injection two-cylinder piston refrigeration compressor, position on the outside casing wall of two cylinder close to cylinder cap is equipped with the extra block for being formed radially intermediate fill gas mouth by the groove of formation respectively, it is axially placed with reed in the groove that the medial surface of the extra block is formed, the position that the extra block is corresponded on the outside casing wall of the cylinder is formed through the gas supplementing opening of casing wall being mutually parallel and plunger aperture on the outside of the cylinder, plunger is installed in the plunger aperture, one end medial surface of the reed is bonded with the corresponding end of plunger, other end lateral surface with the intermediate fill gas mouth on extra block is closed is bonded.Two cylinders of the present invention utilize second vapor injection, realize quasi- Two-stage Compression, reduce the enthalpy of evaporator inlet, increase refrigerating capacity, increase output tolerance, reduce delivery temperature, that is, meet the requirement of cold cooling temperature, while improving the thermal performance of refrigeration system.
Description
Technical field
The present invention relates to a kind of open-type second vapor injection two-cylinder piston refrigeration compressors.
Background technology
Piston refrigeration compressor is simple in structure, easy to maintain, the piston refrigeration compressor of twin-tub, can be uneven from offsetting
Revolution inertia force, smooth running, noise are small, displacement increase, be now widely used in refrigerating plant system, in certain spies
Determine place, such as automobile-used and marine refrigerating plant, need open-type double-cylinder refrigeration compressor, when the evaporating temperature of refrigeration system reduces
When, the pressure ratio of refrigeration compressor increases, power consumption increases, delivery temperature increases, and the thermal performance of refrigeration system declines, compressor
Runnability and reliability reduce.
However, existing open-type two-cylinder piston refrigeration compressor, in refrigeration property in energy service life, still to need further
It improves, therefore, designs or develop performance more preferably open-type two-cylinder piston refrigeration compressor, made with meeting cooling needs and improving
The service life of cold compressor, reduces cost, has great importance.
Invention content
The present invention is to provide a kind of open-type second vapor injection two-cylinder piston system to overcome shortcoming in the prior art
Cold compressor, to meet the variation demand of cooling load.
The technical solution adopted to achieve the purpose of the present invention is as follows：
A kind of open-type second vapor injection two-cylinder piston refrigeration compressor, including body and inclined on the body
Mandrel is mounted on two on two eccentric parts of the eccentric shaft and be located in the body by two connecting rods respectively and is located at
The piston of homonymy, loaded in two cylinders formed in the body, the end side of two cylinders is equipped with two pistons
Cylinder cap with suction muffler and discharge chamber is equipped with the valve of the inlet valve with cylinder and air bleeding valve between the cylinder cap and two cylinders
Plate is equipped on the outside casing wall of two cylinders by the groove of formation close to the position of the cylinder cap and is formed radially respectively
The extra block of intermediate fill gas mouth, is axially placed with reed in the groove that the medial surface of the extra block is formed, the cylinder it is outer
The position that the extra block is corresponded on the casing wall of side is formed through the gas supplementing opening being mutually parallel and column of casing wall on the outside of the cylinder
Consent mouth, the intermediate fill gas mouth is opposite with gas supplementing opening, and plunger, one end inside of the reed are equipped in the plunger aperture
Face is bonded with the corresponding end of plunger, other end lateral surface with the intermediate fill gas mouth on extra block is closed is bonded
The intermediate fill gas mouth connects second vapor injection pipe.
The suction muffler is connect by the air entry of cylinder cap with air intake duct, exhaust outlet and row of the discharge chamber by cylinder cap
Tracheae connects.
The short end of the eccentric main axis is fixedly connected with oil pump, and the oil pump is located at outside the body.
It is welded to connect with the gas vent of economizer after the inlet parallel of two second vapor injection pipes.
The open-type second vapor injection two-cylinder piston refrigeration compressor of the present invention, two cylinders utilize second vapor injection, realize accurate
Two-stage Compression reduces the enthalpy of evaporator inlet, increases refrigerating capacity, increases output tolerance, reduces delivery temperature, that is, meet cold
The requirement of cooling temperature, while improving the thermal performance of refrigeration system.
In addition, the configuration of the present invention is simple, easy to assembly, control is flexible, securely and reliably.
Description of the drawings
Fig. 1 is the schematic diagram of open-type second vapor injection two-cylinder piston refrigeration compressor of the present invention；
Fig. 2 is A-A to broken section enlarged drawing；
Specific implementation mode
Below in conjunction with the drawings and specific embodiments to the detailed description of the invention.
As shown in Figure 1 to Figure 2, a kind of open-type second vapor injection two-cylinder piston refrigeration compressor, including：
Air intake duct 1, cylinder cap 2, exhaust pipe 3, the second gas supplementing opening 4, the second extra block 5, the second second vapor injection pipe 6, the second spring
Piece 7, the second plunger 8, oil pump 9, second piston 10, body 11, second connecting rod 12, first connecting rod 13, first piston 14, the first column
Plug 15, eccentric crankshaft 16, the first reed 17, the second extra block 18, the first second vapor injection pipe 19, the first gas supplementing opening 20, valve plate 21；
The body 11 is that the integral structure of monoblock cast includes the first, second cylinder, left shaft holder and right bearing portions
Point.Left shaft holder is sleeved on outside the long end of eccentric main axis 16, and right bearing cover for seat is outside the short end of eccentric main axis, eccentric main axis
Short end external stability be combined with oil pump 9, drive oil pump 9 to rotate together；The outer cover of the first eccentric part of the eccentric main axis
Equipped with 13 major part part of first connecting rod, 13 microcephaly of first connecting rod part is connect by first piston pin with first piston 14, and first
Piston 14 is in the first cylinder and opposite sliding, the outer cover of the second eccentric part of eccentric main axis are equipped with 12 enlarged head of second connecting rod
Point, second connecting rod 12 microcephaly part is connect by second piston pin with second piston 10, second piston 10 in the second cylinder simultaneously
Opposite sliding；
Sealing is equipped with valve plate 21 between first cylinder and the second cylinder head and cylinder cap 2, and valve plate 21 is equipped with the first gas
The inlet valve of cylinder and the second cylinder, air bleeding valve, cylinder cap 2 is interior to be equipped with suction muffler and discharge chamber, the air entry that suction muffler passes through cylinder cap 2
It welds and connects with air intake duct 1, discharge chamber is welded to connect by the exhaust outlet of cylinder cap 2 with exhaust pipe 2, with the skill of upper cylinder cover and valve plate
Art is the technology of existing open-type two-cylinder piston refrigeration compressor, is no longer explained in detail to this structure.
First cylinder is radially offered recessed with the sealing cooperation of the first extra block 18 on the side wall of top side
Slot, the first extra block 18 open up fluted with the side that cylinder coordinates, and the bottom of groove is curved surface, axially placed the in groove
One reed 17,18 radial direction of the first extra block open up perforative aperture and one end of the first second vapor injection pipe 19 and are welded to connect, and first
The one side of one end of reed 17 is bonded with one end of the first plunger 15, the another side of 17 other end of the first reed and first attached
The closed fitting in the aperture of block 18, cylinder is added to correspond to the position in 18 aperture of the first extra block, open up perforative first gas supplementing opening 20, with
The axial parallel position of first gas supplementing opening 20 opens up perforative aperture, and the first plunger 15 is placed in this aperture.
On the side wall of top side, warp-wise offers recessed with the sealing cooperation of the second extra block 5 second cylinder
Slot, the second extra block 5 open up fluted with the side that cylinder coordinates, and the bottom of groove is curved surface, axially placed the in groove
Two reeds 7,5 radial direction of the second extra block open up perforative aperture and one end of the second second vapor injection pipe 6 and are welded to connect, the second reed
The one side of 7 one end is bonded with one end of the second plunger 8, the another side of 7 other end of the second reed and the second extra block 5
The closed fitting in aperture, the second cylinder correspond to the position in 5 aperture of the second extra block, open up perforative second gas supplementing opening 4, are mended with second
The axial parallel position of gas port 4 opens up perforative aperture, and the second plunger 8 is placed in this aperture.
The inlet parallel of the first second vapor injection pipe 6 and the second second vapor injection pipe 19, and with the gas vent of economizer
It is welded to connect.
Wherein, the economizer is the economizer in conventional refrigerant system.
When work, by evaporator Lai low-temp low-pressure gas refrigeration working medium by air intake duct 1 enter compressor cylinder cap 2 in
Suction muffler, the inlet valve on open-top valve plate respectively enters the work of the first cylinder, the second cylinder and corresponding two top lands
Make in space, when the pressure of compressed gas is enough to overcome the elastic force of the first reed, the second reed in the working space, the first column
Plug, the open-top corresponding reed of the second plunger make corresponding reed be detached from the aperture of the extra block connected in second vapor injection pipe, intermediate
The gas of pressure enters through tonifying Qi hole in the working space, and mixed gas continues to be compressed to when being enough to open air bleeding valve, high
Warm high pressure gas refrigeration working medium is through the air bleeding valve and exhaust pipe discharge compressor in cylinder cap 2.
Although the present invention is particularly described with reference to embodiment, embodiments described above be it is illustrative without
It is restrictive, without departing from the spirit and scope of the present invention, all change and modification are all in the model of the present invention
Within enclosing.
Claims (5)
1. a kind of open-type second vapor injection two-cylinder piston refrigeration compressor, including body and the bias on the body
Axis is mounted on two on two eccentric parts of the eccentric shaft and be located in the body by two connecting rods respectively and is located at together
The piston of side, for two pistons loaded in two cylinders formed in the body, the end side of two cylinders is equipped with band
There is the cylinder cap of suction muffler and discharge chamber, the valve of the inlet valve with cylinder and air bleeding valve is equipped between the cylinder cap and two cylinders
Plate, which is characterized in that pacified respectively by the groove of formation close to the position of the cylinder cap on the outside casing wall of two cylinders
Equipped with the extra block for being formed radially intermediate fill gas mouth, it is axially placed with reed in the groove of the medial surface formation of the extra block,
The position that the extra block is corresponded on the outside casing wall of the cylinder is formed through being mutually parallel for casing wall on the outside of the cylinder
Gas supplementing opening and plunger aperture, the intermediate fill gas mouth is opposite with gas supplementing opening, and plunger, the spring are equipped in the plunger aperture
One end medial surface of piece is bonded with the corresponding end of plunger, other end lateral surface with the intermediate fill gas mouth on extra block is closed is bonded.
2. open-type second vapor injection two-cylinder piston refrigeration compressor according to claim 1, which is characterized in that the intermediate benefit
Gas port connects second vapor injection pipe.
3. open-type second vapor injection two-cylinder piston refrigeration compressor according to claim 1, which is characterized in that the suction muffler
It is connect with air intake duct by the air entry of cylinder cap, the discharge chamber is connect by the exhaust outlet of cylinder cap with exhaust pipe.
4. open-type second vapor injection two-cylinder piston refrigeration compressor according to claim 1, which is characterized in that described eccentric main
The short end of axis is fixedly connected with oil pump, and the oil pump is located at outside the body.
5. open-type second vapor injection two-cylinder piston refrigeration compressor according to claim 2, which is characterized in that two centres
It is welded to connect with the gas vent of economizer after the inlet parallel of blowdown pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810441724.8A CN108331733A (en) | 2018-05-10 | 2018-05-10 | A kind of open-type second vapor injection two-cylinder piston refrigeration compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810441724.8A CN108331733A (en) | 2018-05-10 | 2018-05-10 | A kind of open-type second vapor injection two-cylinder piston refrigeration compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108331733A true CN108331733A (en) | 2018-07-27 |
Family
ID=62934771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810441724.8A Pending CN108331733A (en) | 2018-05-10 | 2018-05-10 | A kind of open-type second vapor injection two-cylinder piston refrigeration compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108331733A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209876A (en) * | 2018-08-17 | 2019-01-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump assembly, casting mould and rotary compressor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2570562Y (en) * | 2002-05-29 | 2003-09-03 | 舒国平 | Safety gas valve |
| CN201351610Y (en) * | 2008-12-22 | 2009-11-25 | 珠海格力电器股份有限公司 | Oscillating compressor with air-supplying enthalpy-adding device |
| CN201486856U (en) * | 2009-06-30 | 2010-05-26 | 珠海格力电器股份有限公司 | Rotary compressor with enthalpy gaining device |
| CN203847385U (en) * | 2014-02-27 | 2014-09-24 | 广东美芝精密制造有限公司 | Rotary compressor and air conditioning system |
| CN208330647U (en) * | 2018-05-10 | 2019-01-04 | 天津商业大学 | A kind of open-type second vapor injection two-cylinder piston refrigeration compressor |
-
2018
- 2018-05-10 CN CN201810441724.8A patent/CN108331733A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2570562Y (en) * | 2002-05-29 | 2003-09-03 | 舒国平 | Safety gas valve |
| CN201351610Y (en) * | 2008-12-22 | 2009-11-25 | 珠海格力电器股份有限公司 | Oscillating compressor with air-supplying enthalpy-adding device |
| CN201486856U (en) * | 2009-06-30 | 2010-05-26 | 珠海格力电器股份有限公司 | Rotary compressor with enthalpy gaining device |
| CN203847385U (en) * | 2014-02-27 | 2014-09-24 | 广东美芝精密制造有限公司 | Rotary compressor and air conditioning system |
| CN208330647U (en) * | 2018-05-10 | 2019-01-04 | 天津商业大学 | A kind of open-type second vapor injection two-cylinder piston refrigeration compressor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209876A (en) * | 2018-08-17 | 2019-01-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump assembly, casting mould and rotary compressor |
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