CN203501743U - Compact type double-machine two-stage-screw refrigeration compression system - Google Patents
Compact type double-machine two-stage-screw refrigeration compression system Download PDFInfo
- Publication number
- CN203501743U CN203501743U CN201320455755.1U CN201320455755U CN203501743U CN 203501743 U CN203501743 U CN 203501743U CN 201320455755 U CN201320455755 U CN 201320455755U CN 203501743 U CN203501743 U CN 203501743U
- Authority
- CN
- China
- Prior art keywords
- refrigerant
- refrigeration compressor
- oil separation
- machine
- condenser
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a compact type double-machine two-stage-screw refrigeration compression system which comprises a low-pressure-stage screw refrigeration compressor, a high-pressure-stage screw refrigeration compressor, an oil cooler, a middle cooler, an economizer and an evaporator which are connected with one another through a pipeline, a valve, a conveying pump and the like. The compact type double-machine two-stage-screw refrigeration compression system also comprises an integrated oil separation condenser, wherein an oil-gas mixing inlet of the integrated oil separation condenser is connected with a gas exhaust opening of the high-pressure-stage screw refrigeration compressor; a refrigerant outlet of the integrated oil separation condenser is connected with the input end of the evaporator through the middle cooler and the economizer in sequence; a lubricating oil outlet of the integrated oil separation condenser is connected with the input end of the oil cooler. According to the compact type double-machine two-stage-screw refrigeration compression system, the integrated oil separation condenser is adopted to replace an oil separator and a condenser which are separately arranged in the original system, so that only one set of equipment can implement oil separation and liquefaction of a refrigerant; therefore, the functions of the oil separator and the condenser can be combined; furthermore, the system disclosed by the utility model is more compact, easier to process and lower in cost.
Description
Technical field
The utility model relates to refrigeration system, refers to particularly a kind of compact double-machine two-stage screw bolt refrigerant compressibility.
Background technology
The kind of refrigeration cycle of double-machine two-stage screw bolt refrigerant compressibility is that not exclusively cool cycles, two-stage are crossed cold pattern for improved two stages of compression, one-level throttling, centre, its volumetric ratio flexible configuration, there is the features such as system is simple, with low cost, floor space is little, simple to operation, refrigerating efficiency is high, the covering of refrigerating capacity scope is large, being widely used in the industries such as food, dairy products, freezer, chemical industry, polysilicon, PVC, pharmacy, coal, is that evaporating temperature is at the first-selected product in-30 ℃ ~-55 ℃ of cryogenic refrigeration fields.
At present, the structure of double-machine two-stage screw bolt refrigerant compressibility is substantially as shown in present specification Fig. 1, and it is mainly comprised of parts such as the low-pressure stage Spiral Lobe Refrigeration Compressor 1 being connected by parts such as pipeline, valve and delivery pumps, hiigh pressure stage Spiral Lobe Refrigeration Compressor 4, oil eliminator 7, oil cooler 8, intercooler 10, economizer 11, condenser 9 and evaporimeters 12.Low-pressure stage Spiral Lobe Refrigeration Compressor 1 is connected with the first drive motors 3 by the first shaft coupling 2, and hiigh pressure stage Spiral Lobe Refrigeration Compressor 4 is connected with the second drive motors 6 by the second shaft coupling 5.
The predominating path of its kind of refrigeration cycle is: low-pressure stage Spiral Lobe Refrigeration Compressor 1 sucks low pressure refrigerant vapor from evaporimeter 12, after compression discharged to hiigh pressure stage Spiral Lobe Refrigeration Compressor 4, after again compressing, gas mixture is input in oil eliminator 7 separated, isolated refrigerant vapour flows to condenser 9, after cooling water condensation becomes refrigerant liquid, flow to again intercooler 10 and economizer 11 is excessively cold by secondary, secondary is crossed high pressure refrigerant liquid after cold through magnetic valve and choke valve throttling, then in evaporimeter 12, absorb the heat of secondary refrigerant liquid and explosive evaporation, gained refrigerant vapour is sucked by low-pressure stage Spiral Lobe Refrigeration Compressor 1 again, complete kind of refrigeration cycle.Isolated lubricating oil enters oil cooler 8, is again transported in low-pressure stage Spiral Lobe Refrigeration Compressor 1, hiigh pressure stage Spiral Lobe Refrigeration Compressor 4 and recycles after cooling.
In above-mentioned traditional double-machine two-stage screw bolt refrigerant compressibility, oil eliminator 7 and condenser 9 are pressure vessels of two platform independent, that its structure is disperseed, made is complicated, unit change into high, floor space is large, particularly the air inlet of the exhaust outlet of oil eliminator 7 and condenser 9 is connected by extraneous pipeline, not only exhaust resistance is large, drive motors power consumption is high, and reduced the coefficient of performance of double-machine two-stage screw bolt refrigerant compressibility, limited its application at worst cold case refrigerating field.
Technical scheme
The purpose of this utility model will overcome the existing deficiency of prior art exactly, and the compact double-machine two-stage screw bolt refrigerant compressibility that a kind of structure is more simple, cost is cheaper, heating performance under low temperature is better is provided.
For achieving the above object, the compact double-machine two-stage screw bolt refrigerant compressibility that the utility model is designed, it comprises passes through pipeline, the low-pressure stage Spiral Lobe Refrigeration Compressor that valve is connected with parts such as delivery pumps, hiigh pressure stage Spiral Lobe Refrigeration Compressor, oil cooler, intercooler, economizer and evaporimeter, the suction end of the suction end of described low-pressure stage Spiral Lobe Refrigeration Compressor and hiigh pressure stage Spiral Lobe Refrigeration Compressor is all connected with the output of evaporimeter, the exhaust outlet of described low-pressure stage Spiral Lobe Refrigeration Compressor is connected with the air entry of hiigh pressure stage Spiral Lobe Refrigeration Compressor, the jet of the jet of described low-pressure stage Spiral Lobe Refrigeration Compressor and hiigh pressure stage Spiral Lobe Refrigeration Compressor is all connected with the output of oil cooler, its special character is:
It also comprises integrated form oil separation condenser, the air-fuel mixture import of described integrated form oil separation condenser is connected with the exhaust outlet of hiigh pressure stage Spiral Lobe Refrigeration Compressor, the refrigerant outlet of described integrated form oil separation condenser is connected with the input of evaporimeter with economizer by intercooler successively, and the described integrated form oil lubricating oil outlet of separation condenser and the input of oil cooler are connected.
As preferred version, described integrated form oil separation condenser comprises pressure cylinder, the two ends of described pressure cylinder are provided with end face tube sheet, the arranged outside of described end face tube sheet has end cap, and described pressure cylinder inside is separated into lubricating oil separation chamber and condensation of refrigerant chamber by the cambered plate on the tilt clapboard longitudinally arranging and two sides thereof;
Air-fuel mixture import and the lubricating oil outlet of described integrated form oil separation condenser are separately positioned on lubricating oil separation cavity outer wall, inner both sides, described lubricating oil separation chamber are respectively arranged with stainless steel oil collection net and stainless steel separate mesh, between described stainless steel oil collection net and stainless steel separate mesh, be vertically arranged with exhaust of oil pipe, the input of described air-fuel mixture delivery pipe is connected with air-fuel mixture import, the output of described air-fuel mixture delivery pipe is relative with stainless steel oil collection net, described stainless steel separate mesh inner side is provided with transverse gear oiled-plate method, the tilt clapboard upper end in described stainless steel separate mesh outside offers the connected entrance being connected with condensation of refrigerant chamber,
The refrigerant outlet of described integrated form oil separation condenser is arranged on condensation of refrigerant cavity outer wall, and inside, described condensation of refrigerant chamber is vertically arranged with the heat-exchanging tube bundle communicating with extraneous cooling water, and the two end supports of described heat-exchanging tube bundle is on end face tube sheet.
Further, the output of described air-fuel mixture delivery pipe is also provided with muffler, and with the blowdown presssure of balanced gas mixture, noise decrease pollutes.
Further, inside, described condensation of refrigerant chamber is provided with gas averaging board corresponding to connected entrance below, to avoid the impact of high-temperature high-pressure refrigerant steam heat exchanging tube bank, the working life that extends heat-exchanging tube bundle.
Again further, on described heat-exchanging tube bundle, be arranged at intervals with gripper shoe, to strengthen the rigidity of heat-exchanging tube bundle, improve the shock resistance of equipment.
Operation principle of the present utility model is such: low-pressure stage Spiral Lobe Refrigeration Compressor sucks low pressure refrigerant vapor from evaporimeter, discharged to hiigh pressure stage Spiral Lobe Refrigeration Compressor, after again compressing, enter integrated form oil separation condenser inside and complete separation and condensation process after compression.Then, refrigerant liquid direction of flow intercooler and economizer are excessively cold by secondary, and the high pressure refrigerant liquid of crossing after cold is input in evaporimeter again, absorb the heat of secondary refrigerant liquid and explosive evaporation, and gained steam is sucked by low-pressure stage Spiral Lobe Refrigeration Compressor again.
The utility model has the advantage of: adopt integrated form oil separation condenser to replace in traditional two-shipper two-stage screw bolt refrigerant compressibility oil eliminator and the condenser minute being arranged, only by an equipment, just can complete oil separation and the liquefaction processing of cold-producing medium, not only the function of oil eliminator and condenser can be united two into one, and make the structure of system compacter, processing especially easily, cost is more cheap.Meanwhile, its piping connects and is tending towards succinct, and occupation area of equipment greatly reduces, and working stability is reliable, and refrigerating efficiency is better.
Accompanying drawing explanation
Fig. 1 is the structural representation of traditional double-machine two-stage screw bolt refrigerant compressibility.
Fig. 2 is the structural representation of compact double-machine two-stage screw bolt refrigerant compressibility of the present utility model.
Fig. 3 be in Fig. 2 integrated form oil separation condenser analyse and observe structure for amplifying schematic diagram.
Fig. 4 is the left sectional structure schematic diagram of Fig. 3.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Existing double-machine two-stage screw bolt refrigerant compressibility shown in Fig. 1, its structure and the operation principle background technology above partly have been described in detail, and in this, repeat no more.
Compact double-machine two-stage screw bolt refrigerant compressibility of the present utility model shown in Fig. 2, is mainly comprised of parts such as the low-pressure stage Spiral Lobe Refrigeration Compressor 1 being connected by parts such as pipeline, valve and delivery pumps, hiigh pressure stage Spiral Lobe Refrigeration Compressor 4, oil cooler 8, intercooler 10, economizer 11 and evaporimeters 12.The suction end of the suction end of low-pressure stage Spiral Lobe Refrigeration Compressor 1 and hiigh pressure stage Spiral Lobe Refrigeration Compressor 4 is all connected with the output of evaporimeter 12, the exhaust outlet of low-pressure stage Spiral Lobe Refrigeration Compressor 1 is connected with the air entry of hiigh pressure stage Spiral Lobe Refrigeration Compressor 4, and the jet of the jet of low-pressure stage Spiral Lobe Refrigeration Compressor 1 and hiigh pressure stage Spiral Lobe Refrigeration Compressor 4 is all connected with the output of oil cooler 8.
It also has integrated form oil separation condenser 13, the air-fuel mixture import 13f of integrated form oil separation condenser 13 is connected with the exhaust outlet of hiigh pressure stage Spiral Lobe Refrigeration Compressor 4, the refrigerant outlet 13k of integrated form oil separation condenser 13 is connected with the input of evaporimeter 12 with economizer 11 by intercooler 10 successively, and the lubricating oil outlet 13g of integrated form oil separation condenser 13 is connected with the input of oil cooler 8.
As shown in Figure 3, the concrete structure of above-mentioned integrated form oil separation condenser 13 comprises pressure cylinder 13d, the two ends of pressure cylinder 13d are provided with end face tube sheet 13a, the arranged outside of end face tube sheet 13a has end cap 13i, and pressure cylinder 13d inside is separated into lubricating oil separation chamber 13p and condensation of refrigerant chamber 13r by the cambered plate 13u at the tilt clapboard 13j longitudinally arranging and two ends thereof.
Air-fuel mixture import 13f and the lubricating oil outlet 13g of above-mentioned integrated form oil separation condenser 13 are separately positioned on the 13p outer wall of lubricating oil separation chamber, 13p inner both sides in lubricating oil separation chamber are respectively arranged with stainless steel oil collection net 13h and stainless steel separate mesh 13c, between stainless steel oil collection net 13h and stainless steel separate mesh 13c, be vertically arranged with exhaust of oil pipe 13q, the input of air-fuel mixture delivery pipe 13q is connected with air-fuel mixture import 13f, the output of air-fuel mixture delivery pipe 13q is relative with stainless steel oil collection net 13h, and the output of air-fuel mixture delivery pipe 13q is provided with muffler 13t.Stainless steel separate mesh 13c inner side is provided with transverse gear oiled-plate method 13n, and the tilt clapboard 13j upper end in stainless steel separate mesh 13c outside offers the connected entrance 13s being connected with condensation of refrigerant chamber 13r.
The refrigerant outlet 13k of above-mentioned integrated form oil separation condenser 13 is arranged on the 13r outer wall of condensation of refrigerant chamber, 13r inside, condensation of refrigerant chamber is vertically arranged with the heat-exchanging tube bundle 13e communicating with extraneous cooling water, the two end supports of heat-exchanging tube bundle 13e is on end face tube sheet 13a, and heat-exchanging tube bundle 13e midfeather has been provided with the gripper shoe 13m of reinforcement effect.In 13r inside, condensation of refrigerant chamber, be provided with gas averaging board 13b below corresponding to connected entrance 13s, to prevent that high-temperature high-pressure refrigerant steam is directly injected on heat-exchanging tube bundle 13e.
The advantage of above-mentioned integrated form oil separation condenser 13 is to have integrated oil eliminator and shell-and-tube cooler, the oil-filled amount while having reduced oily separation; Its topology layout is simultaneously compact, floor space is little, be convenient to transportation, with low cost.
The course of work of the present utility model is as follows: low-pressure stage Spiral Lobe Refrigeration Compressor 1 sucks low pressure refrigerant vapor from evaporimeter 12, need not carry out after compression oil separated, but after cooling by the middle temperature return-air from intercooler 10, enter hiigh pressure stage Spiral Lobe Refrigeration Compressor 4 together with oil band gas, after again compressing, be transported to the air-fuel mixture import 13f of lubricating oil separation chamber 13p, gas mixture is after exhaust of oil pipe 13q turns to, by muffler 13t output, spray to the stainless steel oil collection net 13h of lubricating oil separation chamber 13p mono-side, wherein a part of oil droplet separates, then gas mixture is turned back to the stainless steel separate mesh 13c of lubricating oil separation chamber 13p opposite side and is carried out complete separation.
The most of oil droplet separating is blocked in transverse gear oiled-plate method 13n inner side, by lubricating oil outlet 13g, enters oil cooler 8, is again transported in low-pressure stage Spiral Lobe Refrigeration Compressor 1 and hiigh pressure stage Spiral Lobe Refrigeration Compressor 4 and recycles after cooling.
The refrigerant vapour of separating flows into condensation of refrigerant chamber 13r by connected entrance 13s, by the cooling water condensation in heat-exchanging tube bundle 13e, become refrigerant liquid, the refrigerant outlet 13k output of this refrigerant liquid from the 13r outer wall of condensation of refrigerant chamber subsequently, pass through successively intercooler 10 and economizer 11 two-stages are excessively cold, send back to again and in evaporimeter 12, reuptake the heat of secondary refrigerant liquid and explosive evaporation, gained refrigerant vapour is sucked by low-pressure stage Spiral Lobe Refrigeration Compressor 1 again, completes kind of refrigeration cycle.
Claims (6)
1. a compact double-machine two-stage screw bolt refrigerant compressibility, it comprises passes through pipeline, the low-pressure stage Spiral Lobe Refrigeration Compressor (1) that valve is connected with parts such as delivery pumps, hiigh pressure stage Spiral Lobe Refrigeration Compressor (4), oil cooler (8), intercooler (10), economizer (11) and evaporimeter (12), the suction end of the suction end of described low-pressure stage Spiral Lobe Refrigeration Compressor (1) and hiigh pressure stage Spiral Lobe Refrigeration Compressor (4) is all connected with the output of evaporimeter (12), the exhaust outlet of described low-pressure stage Spiral Lobe Refrigeration Compressor (1) is connected with the air entry of hiigh pressure stage Spiral Lobe Refrigeration Compressor (4), the jet of the jet of described low-pressure stage Spiral Lobe Refrigeration Compressor (1) and hiigh pressure stage Spiral Lobe Refrigeration Compressor (4) is all connected with the output of oil cooler (8), it is characterized in that:
It also comprises integrated form oil separation condenser (13), the air-fuel mixture import (13f) of described integrated form oil separation condenser (13) is connected with the exhaust outlet of hiigh pressure stage Spiral Lobe Refrigeration Compressor (4), the refrigerant outlet (13k) of described integrated form oil separation condenser (13) is connected with the input of evaporimeter (12) with economizer (11) by intercooler (10) successively, and the lubricating oil outlet (13g) of described integrated form oil separation condenser (13) is connected with the input of oil cooler (8).
2. compact double-machine two-stage screw bolt refrigerant compressibility according to claim 1, it is characterized in that: described integrated form oil separation condenser (13) comprises pressure cylinder (13d), the two ends of described pressure cylinder (13d) are provided with end face tube sheet (13a), the arranged outside of described end face tube sheet (13a) has end cap (13i), and the inner cambered plate (13u) by the tilt clapboard longitudinally arranging (13j) and two ends thereof of described pressure cylinder (13d) is separated into lubricating oil separation chamber (13p) and condensation of refrigerant chamber (13r);
Air-fuel mixture import (13f) and the lubricating oil outlet (13g) of described integrated form oil separation condenser (13) are separately positioned on the outer wall of lubricating oil separation chamber (13p), inner both sides, described lubricating oil separation chamber (13p) are respectively arranged with stainless steel oil collection net (13h) and stainless steel separate mesh (13c), between described stainless steel oil collection net (13h) and stainless steel separate mesh (13c), be vertically arranged with exhaust of oil pipe (13q), the input of described air-fuel mixture delivery pipe (13q) is connected with air-fuel mixture import (13f), the output of described air-fuel mixture delivery pipe (13q) is relative with stainless steel oil collection net (13h), described stainless steel separate mesh (13c) inner side is provided with transverse gear oiled-plate method (13n), tilt clapboard (13j) upper end in described stainless steel separate mesh (13c) outside offers the connected entrance (13s) being connected with condensation of refrigerant chamber (13r),
The refrigerant outlet (13k) of described integrated form oil separation condenser (13) is arranged on the outer wall of condensation of refrigerant chamber (13r), inside, described condensation of refrigerant chamber (13r) is vertically arranged with the heat-exchanging tube bundle (13e) communicating with extraneous cooling water, and the two end supports of described heat-exchanging tube bundle (13e) is on end face tube sheet (13a).
3. compact double-machine two-stage screw bolt refrigerant compressibility according to claim 2, is characterized in that: the output of described air-fuel mixture delivery pipe (13q) is also provided with muffler (13t).
4. according to the compact double-machine two-stage screw bolt refrigerant compressibility described in claim 2 or 3, it is characterized in that: described condensation of refrigerant chamber (13r) is inner is provided with gas averaging board (13b) corresponding to connected entrance (13s) below.
5. according to the compact double-machine two-stage screw bolt refrigerant compressibility described in claim 2 or 3, it is characterized in that: on described heat-exchanging tube bundle (13e), be arranged at intervals with gripper shoe (13m).
6. compact double-machine two-stage screw bolt refrigerant compressibility according to claim 4, is characterized in that: on described heat-exchanging tube bundle (13e), be arranged at intervals with gripper shoe (13m).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320455755.1U CN203501743U (en) | 2013-07-29 | 2013-07-29 | Compact type double-machine two-stage-screw refrigeration compression system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320455755.1U CN203501743U (en) | 2013-07-29 | 2013-07-29 | Compact type double-machine two-stage-screw refrigeration compression system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203501743U true CN203501743U (en) | 2014-03-26 |
Family
ID=50332719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320455755.1U Expired - Lifetime CN203501743U (en) | 2013-07-29 | 2013-07-29 | Compact type double-machine two-stage-screw refrigeration compression system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203501743U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352608A (en) * | 2015-07-13 | 2017-01-25 | 开利公司 | Economizer assembly and refrigerating system with same |
| US11867466B2 (en) | 2018-11-12 | 2024-01-09 | Carrier Corporation | Compact heat exchanger assembly for a refrigeration system |
-
2013
- 2013-07-29 CN CN201320455755.1U patent/CN203501743U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352608A (en) * | 2015-07-13 | 2017-01-25 | 开利公司 | Economizer assembly and refrigerating system with same |
| US11867466B2 (en) | 2018-11-12 | 2024-01-09 | Carrier Corporation | Compact heat exchanger assembly for a refrigeration system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101443615B (en) | Refrigerating system with economizing cycle | |
| CN100491866C (en) | Multistage-cascaded compression type heat pump set under large temperature difference | |
| CN104848574B (en) | A kind of fractional condensation type Vapor Compression Refrigeration Cycle system of injector synergy | |
| CN202757337U (en) | Screw type refrigeration compressor unit for economizer | |
| CN202928188U (en) | Integral heat exchanging type double-unit double-level screw refrigeration compression system | |
| CN105627608B (en) | A kind of Auto-cascade cycle steam compressed refrigerating circulating system of gas gas blowout emitter synergy | |
| CN105180492B (en) | A kind of complex supercharge auxiliary twin-stage vapor compression refrigeration system and its method of work | |
| CN105004100A (en) | Single-refrigerant loop and multiple-suction pressure steam compression refrigeration/heat pump system | |
| CN104864622A (en) | Auto-cascade steam compression type refrigeration cycle system | |
| CN201858811U (en) | Screw type liquid cooling unit | |
| CN102901259A (en) | Double-machine double-stage compression refrigeration unit | |
| CN203501743U (en) | Compact type double-machine two-stage-screw refrigeration compression system | |
| CN104792054A (en) | Ejector enhanced auto-cascade steam compressing type refrigeration cycle system | |
| CN105526166B (en) | Compressor and the heat-exchange system with it | |
| CN203501522U (en) | Semi-hermetic screw chiller | |
| CN204787383U (en) | From overlapping vapour pressure formula cooling cycle system that contracts | |
| CN104567124A (en) | Condensing device | |
| CN109442804B (en) | Double-stage compression heat pump circulation system for deep condensation of exhaust steam | |
| CN104697232A (en) | A heat pump system | |
| CN105299964B (en) | Refrigeration machine condenser | |
| CN208059355U (en) | Compression refrigerating machine condenser | |
| CN209415834U (en) | A kind of heat-pump apparatus | |
| CN209355485U (en) | Air-heater system and air-conditioning | |
| CN110345707A (en) | A kind of multi-stage condensing system and multi-stage condensing method for petroleum vapor recovery | |
| CN206695420U (en) | Overlapping type heat pump device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140326 |