CN102914102A - Screw type brine unit - Google Patents
Screw type brine unit Download PDFInfo
- Publication number
- CN102914102A CN102914102A CN2011102235239A CN201110223523A CN102914102A CN 102914102 A CN102914102 A CN 102914102A CN 2011102235239 A CN2011102235239 A CN 2011102235239A CN 201110223523 A CN201110223523 A CN 201110223523A CN 102914102 A CN102914102 A CN 102914102A
- Authority
- CN
- China
- Prior art keywords
- oil
- compressor
- screw rod
- rod type
- type saline
- 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.)
- Granted
Links
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical group O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 title abstract 3
- 238000001035 drying Methods 0.000 claims abstract description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical group [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 31
- 239000011780 sodium chloride Substances 0.000 claims description 31
- 238000001816 cooling Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 230000001502 supplementing effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 description 5
- 239000000446 fuel Substances 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 235000019628 coolness Nutrition 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010836 blood and blood product Substances 0.000 description 1
- 229940125691 blood product Drugs 0.000 description 1
- 235000020965 cold beverage Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012384 transportation and delivery Methods 0.000 description 1
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a screw type brine unit, which comprises a compressor, and an oil cooler, a condenser, a drying filter, an economizer, an evaporator and an oil separator which are connected with the compressor, wherein an oil outlet pipe of the oil separator comprises a first branch and a second branch, oil in the first branch is not cooled by the oil cooler, and oil in the second branch is cooled by the oil cooler, then is connected with the first branch and is connected with the compressor. The oil temperature and the flow of the screw type brine unit entering the compressor are controllable, so that the oil temperature entering the compressor is stable and sufficient in oil supply is ensured; the two compressors are connected in parallel to realize the regulation of 12.5-100% of cold in a large range, and the outlet water temperature range is-10-50 ℃.
Description
Technical field
The present invention relates to a kind of industrial refrigeration field, refer in particular to a kind of screw rod type saline unit.
Background technology
The screw rod type saline unit is applicable to the freezing or similar applications of industry and commerce: comprise in the production process of the industries such as fine chemistry industry, plating, shoemaking, injection moulding, ice making, cold drink, health products, blood product, pharmacy providing the low temperature chilled water.The oil of the oil eliminator of the screw rod type saline unit of prior art directly enters compressor oil-supplying, and the oil temperature supplying of compressor is high and fuel feeding is unstable, affects the efficient of compressor.
Summary of the invention
Goal of the invention of the present invention provides a kind of screw rod type saline unit, and it can reduce the oil temperature supplying of compressor, improves reliability and the efficient of compressor.
The present invention is achieved in that
A kind of screw rod type saline unit comprises the compressor that connects in turn, oil eliminator, condenser, throttle part, evaporimeter; Also comprise oil cooler, oil temperature control valve; The flowline of described oil eliminator comprises the first branch road and the second branch road, flow through the oil of described the second branch road through mixing by described oil temperature control valve with the oil of described the first branch road of flowing through after the cooling of described oil cooler, and the described oil temperature control valve other end is connected with the oil-feed port of described compressor.
The oil of described the second branch road mixes with the oil of described the first branch road after described oil cooler cooling, enters described compressor by oil-feed port again, has reduced the temperature of the oil that enters described compressor, guarantees to enter the temperature stabilization of described compressor.
Preferably, described screw rod type saline unit also comprises device for drying and filtering, and described device for drying and filtering is connected between described condenser and the described throttle part.
Preferably, described screw rod type saline unit also comprises economizer, and described economizer is connected between described condenser and the described throttle part.
Preferably, described screw rod type saline unit includes two compressors, and two described compressor parallels connect.By the guiding valve of compressor and control respectively the output cold that opens, stops regulating the described compressor of separate unit of two described compressors.
Preferably, described economizer is provided with at least one escape pipe, at least two drain pipes, and wherein at least one described drain pipe is by being connected after the throttle part throttling with without the drain pipe of crossing throttling, and described escape pipe is connected with the gas supplementing opening of described compressor.On the one hand, increased the degree of supercooling of evaporimeter feed flow, made when getting back to the air entry of described compressor through the gaseous coolant of evaporimeter, pressure ratio increases, and namely is equivalent to carry out two-stage compression one time, and screw rod type saline unit cold is provided.
Preferably, the center height of described economizer is lower than the center height of described condenser, thereby has promoted refrigerant to flow to described economizer from described condenser, makes the mobile obstruction that can not be subject to gravity of refrigerant in this process.
Preferably, described oil cooler places the below of the oil-feed port of described compressor, and the highest point of described oil cooler cylindrical shell is not higher than the oil level of described oil eliminator, thereby has promoted oil to flow to oil cooler from oil eliminator, makes the mobile obstruction that can not be subject to gravity of oil in this process.
Preferably, be connected with the compressor valve control system between described condenser and the described oil eliminator, make the pressure reduction between described compressor suction duct and the blast pipe be higher than supply pressure, do not need to provide with oil pump the power of screw rod type saline unit oil circulation, save cost.
Screw rod type saline unit of the present invention compared with prior art has following beneficial effect:
It is controlled that screw rod type saline unit of the present invention enters oil temperature and the flow of described compressor, guaranteed to enter that the oil temperature of described compressor is stable and fuel feeding is sufficient; Be connected in parallel by two compressors and realize the 12.5%-100% adjusting of cold on a large scale, realize that the leaving water temperature scope is-10 ℃-50 ℃.
Description of drawings
Fig. 1 is the flow chart of screw rod type saline unit of the present invention;
Fig. 2 is the front view of screw rod type saline unit of the present invention;
Fig. 3 is the top view of screw rod type saline unit of the present invention;
Fig. 4 is the left view of screw rod type saline unit of the present invention;
Fig. 5 is the structural representation of oil cooler.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated:
As shown in Figure 1, screw rod type saline unit of the present invention, it comprises compressor 1A, 1B, and the oil cooler 2, condenser 3, device for drying and filtering 4, economizer 5, evaporimeter 6 and the oil eliminator 7 that are connected with described compressor 1A, 1B.
Wherein, described compressor 1A, 1B are connected in parallel.Guiding valve that can be by described compressor 1A, 1B and control respectively the output cold that opens, stops regulating described compressor 1A or 1B of two described compressor 1A, 1B.When screw rod type saline unit cold load hour, can open compressor 1A operation by control system, realize cold from 12.5%～50% operation of regulating, if refrigeration requirement is larger, the screw rod type saline unit control system detects refrigerating medium (CaCl automatically
2Solution) Inlet and outlet water temperature and compare with design temperature is opened two compressor 1A, 1B automatically, realizes 50%～100% large cold operation of regulating.Wherein, control described compressor by guiding valve, or by control system control described compressor 1A, 1B open, stop belonged to prior art, the present invention does not repeat them here.
As shown in Figure 5, wherein, direction shown in the arrow is the flow direction of oil.The flowline of described oil eliminator 7 comprises the first branch road 8 and the second branch road 9, the oil of described the first branch road 8 is without described oil cooler 2 coolings, and the oil of described the second branch road 9 is through described oil cooler 2 coolings, described the first branch road 8 is connected by oil temperature control valve 10 with the oil inlet pipe 11 of described the second branch road 9 and described compressor, finally makes oil enter respectively described compressor 1A, 1B by the oil-feed port 12 of described compressor 1A and the oil-feed port 13 of described compressor 1B.Described oil temperature control valve 10 is the mechanical type triple valve, that control valve 10 is regulated high temperature oil by described the first branch road 8 and the combined amount of the low temperature oil by described the second branch road 9 by described temperature, the temperature of the oil that enters described compressor 1A, 1B is remained near the setting value, for example temperature remains about 49 ℃, deviation is ± 2 ℃, realize the accurate control of the oil temperature supplying of compressor 1A, 1B, guaranteed the reliability of compressor 1A, 1B.In the present invention, described oil eliminator 7 is with oil storage function, guaranteed enough fuel deliveries of the oil-feed port 13 of the oil-feed port 12 of described compressor 1A and described compressor 1B.
Continue as shown in Figure 1, described economizer 5 is provided with 3 drain pipes and 2 escape pipes, wherein two described drain pipes 14 are connected without the drain pipe 15 of crossing throttling with another after throttle part 16 throttlings, and other two escape pipes 20 are connected with the gas supplementing opening of described compressor 1A, 1B.Through after described throttle part 16 throttlings, on the one hand, increased the degree of supercooling of described evaporimeter 6 feed flows, make when getting back to the air entry of described compressor 1A, 1B through the gaseous coolant of described evaporimeter 6, pressure ratio increases, namely be equivalent to carry out two-stage compression one time, described screw rod type saline unit cold is provided.
Preferably, be connected with the compressor valve control system between described condenser 3 and the described oil eliminator 7, make the air intake duct of described compressor 1A, 1B and the pressure reduction between the blast pipe be higher than supply pressure, and do not need to provide with oil pump the power of screw rod type saline unit oil circulation, save cost.
To shown in Figure 4, the center height of described economizer 5 is lower than the center height of described condenser 3, thereby has promoted the flow of refrigerant from described condenser 3 to described economizer 5 such as Fig. 2.Described oil cooler 2 places the below of the oil-feed port of described compressor 1A, 1B, and the highest point of the cylindrical shell of described oil cooler 2 is not higher than the oil level of described oil eliminator 7.The control section of screw rod type saline unit of the present invention and start-up circuit system divide and are arranged, switch board 17(comprises touch-screen) place on the described oil eliminator 7, easy operating, start cabinet 18 independent placing on the base, connect the signal transmission of described switch board 17 and the described startup cabinet 18 described switch boards 17 of realization and described startup cabinet 18 by cable.
Be specific embodiments of the invention only below, do not limit protection scope of the present invention with this; Any replacement and the improvement done on the basis of not violating the present invention's design all belong to protection scope of the present invention.
Claims (8)
1. a screw rod type saline unit is characterized in that, comprises the compressor that connects in turn, oil eliminator (7), condenser (3), throttle part (16), evaporimeter (6); Also comprise oil cooler (2), oil temperature control valve (10); The flowline of described oil eliminator (7) comprises the first branch road (8) and the second branch road (9), flow through described the second branch road (9) oil through described oil cooler (2) cooling after mix by described oil temperature control valve (10) with the oil of described the first branch road (8) of flowing through, described oil temperature control valve (10) other end is connected with the oil-feed port of described compressor.
2. screw rod type saline unit as claimed in claim 1 is characterized in that, also comprises device for drying and filtering (4), and described device for drying and filtering (4) is connected between described condenser (3) and the described throttle part (16).
3. screw rod type saline unit as claimed in claim 1 is characterized in that, also comprises economizer (5), and described economizer (5) is connected between described condenser (3) and the described throttle part.
4. screw rod type saline unit as claimed in claim 1 is characterized in that, it includes two compressors (1A, 1B), and two described compressor parallels connect.
5. screw rod type saline unit as claimed in claim 3, it is characterized in that, described economizer (5) is provided with at least one escape pipe, at least two drain pipes, described escape pipe links to each other with described compressor, at least one described drain pipe is by being connected after throttle part (16) throttling with without the drain pipe of crossing throttling, and described escape pipe is connected with the gas supplementing opening of described compressor.
6. screw rod type saline unit as claimed in claim 1 is characterized in that, the height of the center of described economizer (5) is lower than the height of the center of described condenser (3).
7. screw rod type saline unit as claimed in claim 1 is characterized in that, described oil cooler (2) places the below of the oil-feed port of described compressor, and the highest point of the cylindrical shell of described oil cooler (2) is not higher than the oil level of described oil eliminator (7).
8. screw rod type saline unit as claimed in claim 1 is characterized in that, is connected with the compressor valve control system between described condenser (3) and the described oil eliminator (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110223523.9A CN102914102B (en) | 2011-08-05 | 2011-08-05 | Screw type brine unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110223523.9A CN102914102B (en) | 2011-08-05 | 2011-08-05 | Screw type brine unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102914102A true CN102914102A (en) | 2013-02-06 |
| CN102914102B CN102914102B (en) | 2015-06-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110223523.9A Active CN102914102B (en) | 2011-08-05 | 2011-08-05 | Screw type brine unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102914102B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042953A (en) * | 2015-05-25 | 2015-11-11 | 珠海格力电器股份有限公司 | Air supplementing and enthalpy increasing method of economizer and air conditioning system |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0924478A2 (en) * | 1997-12-15 | 1999-06-23 | Carrier Corporation | Refrigeration system with integrated oil cooling heat exchanger |
| US20080184721A1 (en) * | 2004-05-28 | 2008-08-07 | Johnson Controls Technology Company | System and method for controlling an economizer circuit |
| CN101893354A (en) * | 2010-07-01 | 2010-11-24 | 大连三洋压缩机有限公司 | Subcooled oil cooler and novel economizer screw machine refrigeration cycle system |
| CN201680645U (en) * | 2009-07-10 | 2010-12-22 | 特灵空调系统(中国)有限公司 | Return oil system of flooded screw water chiller |
| CN201858811U (en) * | 2010-10-22 | 2011-06-08 | 武汉新世界制冷工业有限公司 | Screw type liquid cooling unit |
| CN202188704U (en) * | 2011-08-05 | 2012-04-11 | 珠海格力电器股份有限公司 | Screw type brine unit |
-
2011
- 2011-08-05 CN CN201110223523.9A patent/CN102914102B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0924478A2 (en) * | 1997-12-15 | 1999-06-23 | Carrier Corporation | Refrigeration system with integrated oil cooling heat exchanger |
| US20080184721A1 (en) * | 2004-05-28 | 2008-08-07 | Johnson Controls Technology Company | System and method for controlling an economizer circuit |
| CN201680645U (en) * | 2009-07-10 | 2010-12-22 | 特灵空调系统(中国)有限公司 | Return oil system of flooded screw water chiller |
| CN101893354A (en) * | 2010-07-01 | 2010-11-24 | 大连三洋压缩机有限公司 | Subcooled oil cooler and novel economizer screw machine refrigeration cycle system |
| CN201858811U (en) * | 2010-10-22 | 2011-06-08 | 武汉新世界制冷工业有限公司 | Screw type liquid cooling unit |
| CN202188704U (en) * | 2011-08-05 | 2012-04-11 | 珠海格力电器股份有限公司 | Screw type brine unit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042953A (en) * | 2015-05-25 | 2015-11-11 | 珠海格力电器股份有限公司 | Air supplementing and enthalpy increasing method of economizer and air conditioning system |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US11919363B2 (en) | 2017-08-25 | 2024-03-05 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102914102B (en) | 2015-06-10 |
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