CN201954825U - Falling film type screw rod unit - Google Patents
Falling film type screw rod unit Download PDFInfo
- Publication number
- CN201954825U CN201954825U CN2011200458469U CN201120045846U CN201954825U CN 201954825 U CN201954825 U CN 201954825U CN 2011200458469 U CN2011200458469 U CN 2011200458469U CN 201120045846 U CN201120045846 U CN 201120045846U CN 201954825 U CN201954825 U CN 201954825U
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- screw rod
- falling film
- film type
- rod unit
- compressor
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Abstract
The utility model relates to a falling film type screw rod unit, belonging to the technical field of a refrigerating air conditioner, in particular to a falling film type flooded screw rod unit. The falling film type screw rod unit comprises a screw rod compressor (1), an oil-gas separator (2) and a shell and tube type condenser (3) which are sequentially connected with one another. The falling film type flooded screw rod unit is characterized in that a falling film type evaporator (4) is adopted between the screw rod compressor (1) and the shell and tube type condenser (3); the falling film type evaporator (4) is internally provided with an economizer (8) and a refrigerant distributor (9); the falling film type evaporator (4) is connected with the screw rod compressor (1) by two pipelines; one refrigerant pipeline is directly connected with the screw rod compressor (1), and the other oil pipeline is connected with the screw rod compressor (1) by an ejector (7); and the ejector (7) is also connected with the oil-gas separator (2). After the falling film type flooded screw rod unit is adopted, the energy efficiency of the screw rod unit is improved, and the material consumption and the later period use and maintenance cost can be reduced, so that the filling quality of system refrigerant is effectively reduced, and the working efficiency of the unit is further improved.
Description
Technical field
A kind of falling film type screw rod unit belongs to the refrigeration and air-conditioning technical field, is specifically related to a kind of full liquid screw rod unit of falling film type.
Background technology
Country is for realizing energy-saving and cost-reducing target, announced the energy-conservation evaluation criterion of a series of product, energy-conservation evaluation criterion comprising handpiece Water Chilling Units, at present, in the industry in order to improve the Energy Efficiency Ratio of product, more and more enterprises adopts the flooded evaporator technology in large-scale unit, but flooded evaporator is owing to need be immersed in heat exchanger tube fully in the refrigerant liquid, just can give full play to the characteristics of full liquid heat exchanger high heat transfer coefficient, and will certainly make that like this loading of refrigerant is excessive, and then cause the excessive use of resource and unnecessary waste, and the later stage can bring maintenance cost to cross problems such as height.
Summary of the invention
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, provide that a kind of refrigerant charging quantity is little, high energy efficiency, low-loss, falling film type screw rod unit that later maintenance cost is lower.
The technical scheme that its technical problem that solves the utility model adopts is: this falling film type screw rod unit, comprise the helical-lobe compressor, gs-oil separator and the package condenser that are linked in sequence, it is characterized in that: between helical-lobe compressor and package condenser, adopt falling film evaporator, economizer and coolant distributor are installed in the falling film evaporator, falling film evaporator is by two pipeline connecting screw rod compressors,, the direct connecting screw rod compressor of refrigerant pipeline, another oil pipe line is by injector connecting screw rod compressor, and injector also links to each other with gs-oil separator.
Be linked in sequence between described economizer and the coolant distributor device for drying and filtering and electric expansion valve, the economizer other end connects the package condenser.
Compared with prior art, the beneficial effect that the utility model had is:
1, adopt downward film evaporator, the charging quantity of system's refrigerant significantly reduces, and efficient is higher, has guaranteed the high energy efficiency of screw unit, has not only satisfied energy-saving and cost-reducing requirement, and the later stage easy to maintenance, cost is lower;
2, economizer is set in downward film evaporator, make the middle temperature refrigerant liquid that cools off through condenser reach further cold excessively through the built-in economizer of evaporimeter earlier, and the refrigerant after the evaporation enters helical-lobe compressor by after economizer further overheated, guaranteed that the cold media gas that enters compressor has certain degree of superheat, avoided hydraulic pressure to contract, both improve the operation stability of system, reduced the loss of freon again.
Description of drawings
Fig. 1 is the utility model structure annexation schematic diagram.
Fig. 2 is the utility model falling film evaporator front view schematic diagram.
Wherein: 1, helical-lobe compressor 2, gs-oil separator 3, package condenser 4, falling film evaporator 5, device for drying and filtering 6, electric expansion valve 7, injector 8, economizer 9, coolant distributor.
Fig. 1～2nd, most preferred embodiment of the present utility model is described further below in conjunction with 1～2 pair of the utility model of accompanying drawing:
The specific embodiment
With reference to accompanying drawing 1～2:
This falling film type screw rod unit, comprise the helical-lobe compressor 1 that is linked in sequence, gs-oil separator 2 and package condenser 3, between helical-lobe compressor 1 and package condenser 3, adopt falling film evaporator 4, economizer 8 and coolant distributor 9 are installed in the falling film evaporator 4, falling film evaporator 4 is by two pipeline connecting screw rod compressors 1,, the direct connecting screw rod compressor 1 of refrigerant pipeline, another oil pipe line is by injector 7 connecting screw rod compressors 1, injector 7 also links to each other with gs-oil separator 2, be linked in sequence between economizer 8 and the coolant distributor 9 device for drying and filtering 5 and electric expansion valve 6, economizer 8 other ends connect package condenser 3.
The course of work is as follows:
Warm refrigerant in forming after gas process package condenser 3 condensations by gs-oil separator 2 discharges, in warm refrigerant at first enter in the built-in economizer 8 of falling film evaporator 4 by package condenser 3, after process economizer 8 further mistakes are cold, discharge from economizer 8 again, pass through device for drying and filtering 5 and electric expansion valve 6 successively, after electric expansion valve 6 throttlings, enter once more in the coolant distributor 9 of falling film evaporator 4, by coolant distributor 9 refrigerant is dispensed to uniformly and respectively organizes heat exchanger tube in the falling film evaporator 4, refrigerant after each group heat exchanger tube evaporation passes through the further overheated of economizer 8 once more, make the refrigerant after overheated get back in the helical-lobe compressor 1 by pipeline, guarantee that with this cold media gas that enters helical-lobe compressor 1 has certain degree of superheat, effectively avoids hydraulic pressure to contract.
The above, it only is preferred embodiment of the present utility model, be not to be the restriction of the utility model being made other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of technical solutions of the utility model according to technical spirit of the present utility model.
Claims (2)
1. falling film type screw rod unit, comprise the helical-lobe compressor (1) that is linked in sequence, gs-oil separator (2) and package condenser (3), it is characterized in that: between helical-lobe compressor (1) and package condenser (3), adopt falling film evaporator (4), economizer (8) and coolant distributor (9) are installed in the falling film evaporator (4), falling film evaporator (4) is by two pipeline connecting screw rod compressors (1),, the direct connecting screw rod compressor of refrigerant pipeline (1), another oil pipe line is by injector (7) connecting screw rod compressor (1), and injector (7) also links to each other with gs-oil separator (2).
2. a kind of falling film type screw rod unit according to claim 1, it is characterized in that: be linked in sequence between described economizer (8) and the coolant distributor (9) device for drying and filtering (5) and electric expansion valve (6), economizer (8) other end connects package condenser (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200458469U CN201954825U (en) | 2011-02-19 | 2011-02-19 | Falling film type screw rod unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200458469U CN201954825U (en) | 2011-02-19 | 2011-02-19 | Falling film type screw rod unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201954825U true CN201954825U (en) | 2011-08-31 |
Family
ID=44498935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200458469U Expired - Fee Related CN201954825U (en) | 2011-02-19 | 2011-02-19 | Falling film type screw rod unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201954825U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102759227A (en) * | 2012-07-16 | 2012-10-31 | 佛山市顺德区高美空调设备有限公司 | Falling film evaporator for refrigeration circuit |
| CN102853575A (en) * | 2012-08-22 | 2013-01-02 | 南京五洲制冷集团有限公司 | Air source falling film water chiller-heater unit |
| CN103363729A (en) * | 2012-03-31 | 2013-10-23 | 珠海格力电器股份有限公司 | Shell-and-tube condenser and air conditioning system with same |
| CN104854410A (en) * | 2012-12-13 | 2015-08-19 | 开利公司 | Low pressure chiller |
-
2011
- 2011-02-19 CN CN2011200458469U patent/CN201954825U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363729A (en) * | 2012-03-31 | 2013-10-23 | 珠海格力电器股份有限公司 | Shell-and-tube condenser and air conditioning system with same |
| CN103363729B (en) * | 2012-03-31 | 2015-07-15 | 珠海格力电器股份有限公司 | Shell-and-tube condenser and air conditioning system with same |
| CN102759227A (en) * | 2012-07-16 | 2012-10-31 | 佛山市顺德区高美空调设备有限公司 | Falling film evaporator for refrigeration circuit |
| CN102853575A (en) * | 2012-08-22 | 2013-01-02 | 南京五洲制冷集团有限公司 | Air source falling film water chiller-heater unit |
| CN102853575B (en) * | 2012-08-22 | 2015-02-18 | 南京五洲制冷集团有限公司 | Air source falling film water chiller-heater unit |
| CN104854410A (en) * | 2012-12-13 | 2015-08-19 | 开利公司 | Low pressure chiller |
| US9903659B2 (en) | 2012-12-13 | 2018-02-27 | Carrier Corporation | Low pressure chiller |
| CN104854410B (en) * | 2012-12-13 | 2018-05-22 | 开利公司 | Low pressure cooler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BOSCH THERMOTECHNOLOGY (SHANDONG) CO., LTD. Free format text: FORMER OWNER: SHANDONG OAK AIR CONDITIONING TECHNOLOGY CO., LTD. Effective date: 20120829 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120829 Address after: 256404, Dongfeng Road 77, Chen Zhuang Town, Huantai County, Zibo, Shandong Patentee after: BOSCH thermal technology (Shandong) Co., Ltd. Address before: 256404, No. 77 Zhang Tian Road, Chen Zhen, Huantai County, Zibo, Shandong Patentee before: Shandong OAK Central Air Conditioning Technology Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190125 Address after: Building 1 and 2, 960 Fengnian Road, Malu Town, Jiading District, Shanghai Patentee after: BOSCH thermal technology (Shanghai) Co., Ltd. Address before: No. 77 Dongfeng Road, Chenzhuang Town, Huantai County, Zibo City, Shandong Province Patentee before: BOSCH thermal technology (Shandong) Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20190219 |