CN203501522U - Semi-hermetic screw chiller - Google Patents
Semi-hermetic screw chiller Download PDFInfo
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- CN203501522U CN203501522U CN201320494443.1U CN201320494443U CN203501522U CN 203501522 U CN203501522 U CN 203501522U CN 201320494443 U CN201320494443 U CN 201320494443U CN 203501522 U CN203501522 U CN 203501522U
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- flooded evaporator
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Abstract
The utility model relates to a semi-hermetic screw chiller, which comprises a pair of semi-hermetic compressors which are connected by a pipeline and a valve, an oil pump, and a flooded evaporator, wherein an air outlet of the flooded evaporator is connected with suction ports of the semi-hermetic compressors. The semi-hermetic screw chiller also comprises an oil built-in condenser, wherein the oil built-in condenser and the flooded evaporator are arranged on a common base side by side, and the oil pump and the pair of semi-hermetic compressors are sequentially arranged on the oil built-in condenser along the longitudinal direction; the exhaust ports of the semi-hermetic compressors are connected with an oil and gas mixing inlet of the oil built-in condenser, and a refrigerant outlet of the oil built-in condenser is connected with a liquid inlet of the flooded evaporator through a throttling device; a lubricating oil outlet of the oil built-in condenser is connected with the oil injection ports of the semi-hermetic compressors through the oil pump. The semi-hermetic screw chiller provided by the utility model has the advantages of compact and reasonable structure, capability of saving material and space, fewer equipment components, and small occupied area.
Description
Technical field
The utility model relates to screw-type water chiller, refers to particularly a kind of semi-closed screw type handpiece Water Chilling Units.
Background technology
At present, by semi-closed screw type handpiece Water Chilling Units as shown in Figure 1, it is mainly comprised of parts such as a pair of semi-closed compressor 1 being connected with valve by pipeline, oil eliminator 7, oil pump 2, shell-and-tube cooler 8, flooded evaporators 4 existing industrial refrigeration.In this semi-closed screw type handpiece Water Chilling Units, a pair of semi-closed compressor 1 is arranged on oil eliminator 7 with oil pump 2, and flooded evaporator 4 is placed on shell-and-tube cooler 8 by bearing, and is placed on a public base with oil eliminator 7.
In this semi-closed screw type handpiece Water Chilling Units, its kind of refrigeration cycle is: semi-closed compressor 1 sucks low-temperature low-pressure refrigerant steam from flooded evaporator 4, is discharged in oil eliminator 7 after being then collapsed into the refrigerant vapour of HTHP; In oil eliminator 7, high-temperature high-pressure refrigerant and its lubricating oil separation of carrying are opened, and lubricating oil enters oil pump 2, then by oil piping system, enters semi-closed compressor 1 and completes oil circulation; High-temperature high-pressure refrigerant steam enters into shell-and-tube cooler 8 after oil eliminator 7 separation, in shell-and-tube cooler 8, refrigerant vapour and cooling medium carry out heat exchange and are condensed into middle temperature highly pressurised liquid, subsequently, warm highly pressurised liquid becomes low-temp low-pressure liquid after throttling arrangement 6, and low-temp low-pressure liquid enters flooded evaporator 4; In flooded evaporator 4, low-temp low-pressure liquid and refrigerating medium carry out heat exchange, and the explosive evaporation of low-temp low-pressure liquid absorption heat becomes gas, and refrigerating medium is emitted heat, and temperature reduces, thereby have realized the object of refrigeration; Cold-producing medium gas in flooded evaporator 4 is sucked by semi-closed compressor 1, thereby has completed a kind of refrigeration cycle.
Because this semi-closed screw type handpiece Water Chilling Units width surpasses movement requirement, and unit comprises two semi-closed compressors in parallel 1, therefore unit height also surpasses movement requirement; Semi-closed compressor 1 or oil eliminator 7 separately need to be transported to user scene, and then re-assembly; This structure floor space is large, and pipeline is installed complicated.Wherein oil eliminator 7 and shell-and-tube cooler 8 separate, and volume heaviness is huge, need to separately transport and occupy larger construction area, and equipment investment expense, land development expense are significantly increased, i.e. the uneconomical needs of saving energy and reduce the cost of being also unfavorable for.
Summary of the invention
The purpose of this utility model will provide a kind of semi-closed screw type handpiece Water Chilling Units exactly, and its equipment forms more simplifies, and equipment mounting arrangement is compact and reasonable more, and equipment investment expense is few, floor space is little, can also realize energy-saving and cost-reducing object.
For achieving the above object, the semi-closed screw type handpiece Water Chilling Units that the utility model is designed, comprise a pair of semi-closed compressor being connected with valve by pipeline, oil pump and flooded evaporator, the gas outlet of described flooded evaporator is connected with the air entry of semi-closed compressor, its special character is: it also comprises the built-in condenser of oil content, the built-in condenser of described oil content and flooded evaporator are placed on a common base side by side, described oil pump and a pair of semi-closed compressor are longitudinally arranged on the built-in condenser of oil content successively, the exhaust outlet of described semi-closed compressor is connected with the air-fuel mixture import of the built-in condenser of oil content, the refrigerant outlet of the built-in condenser of described oil content is connected with the inlet of flooded evaporator through throttling arrangement, the lubricating oil outlet of the built-in condenser of described oil content is connected with the jet of semi-closed compressor through oil pump.
As preferred version, the built-in condenser inner chamber of described oil content is separated into oil eliminator part and condenser portion by the cambered plate at the tilt clapboard longitudinally arranging and two ends thereof, described oil eliminator part bottom is provided with the flowline that leads to described lubricating oil outlet, in described oil eliminator part, be vertically arranged with the mixed oil and gas delivery pipe communicating with described air-fuel mixture import, described oil eliminator part one side is provided with oil and filters stainless steel cloth, the tilt clapboard upper end that described oil filters stainless steel cloth outside offers the connected entrance being connected with condenser portion, described oil filters stainless steel cloth inner side and is provided with oil baffle, the output of described mixed oil and gas delivery pipe is relative with oil eliminator part opposite side, described condenser portion inside is vertically arranged with the condensation pipe used in experiments of chemical engineering communicating with extraneous cooling water, and described condenser portion bottom is provided with the drain pipe communicating with described refrigerant outlet.
Further, it also comprises injector, and the gas outlet of the built-in condenser of described oil content is connected with the input of injector through stop valve, and the output of described injector divides two-way, one tunnel be connected with the oil return opening of flooded evaporator, another road is connected with the air entry of semi-closed compressor.Can open stop valve according to unit operation situation like this high-temperature high-pressure refrigerant steam Fen Yi in the built-in condenser of oil content is gone to injector in road, the refrigerator oil and the refrigerant mixture injection that accumulate in flooded evaporator are got back in semi-closed compressor, guaranteed the stable of flooded evaporator heat transfer effect.
The utility model has the advantage of: by semi-closed compressor and oil pump are arranged on the built-in condenser of oil content, the built-in condenser of oil content and flooded evaporator are placed on a public base, armamentarium is arranged on a public base, compact conformation is reasonable, floor space is little, can also be convenient to whole Transporting on-the-spot to user; Adopt the built-in condenser of oil content, the function of oil eliminator and shell-and-tube cooler is united two into one, met the object of minute oil and condensation simultaneously, can save material and space, equipment is formed and more simplify, floor space is little, be convenient to transport; High accuracy oil is set in the built-in condenser of oil content and filters stainless steel cloth, improved oil-dividing efficiency; By the built-in condenser of described oil content is connected with injector by pipeline, described injector is connected with the oil return mouth of pipe of flooded evaporator and the air entry of semi-closed compressor simultaneously, the built-in condenser Fen Yi of oil content road high-temperature high-pressure refrigerant steam is gone to injector like this, its energy, for existing refrigerator oil and refrigerant mixture injection in flooded evaporator to get back to semi-closed compressor, guarantees the stable of flooded evaporator heat transfer effect.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of existing semi-closed screw type handpiece Water Chilling Units.
Fig. 2 is the schematic flow sheet of semi-closed screw type handpiece Water Chilling Units of the present utility model.
Fig. 3 is the main TV structure schematic diagram of semi-closed screw type handpiece Water Chilling Units of the present utility model.
Fig. 4 is the side view of semi-closed screw type handpiece Water Chilling Units of the present utility model.
Fig. 5 is the top view of semi-closed screw type handpiece Water Chilling Units of the present utility model.
Fig. 6 is the structural representation of the built-in condenser of oil content in Fig. 3.
Fig. 7 is that the A of Fig. 6 is to sectional structure schematic diagram.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Existing semi-closed screw type handpiece Water Chilling Units has as shown in Figure 1 been done detailed introduction in background technology, in this, repeats no more.
As shown in Fig. 2～7, the semi-closed screw type handpiece Water Chilling Units that the utility model is designed, comprise a pair of semi-closed compressor 1, oil pump 2 and the flooded evaporator 4 that by pipeline, are connected with valve, the gas outlet of described flooded evaporator 4 is connected with the air entry of semi-closed compressor 1; It also comprises the built-in condenser 3 of oil content, the built-in condenser 3 of described oil content is placed on a common base 9 side by side with flooded evaporator 4, described oil pump 2 and a pair of semi-closed compressor 1 are longitudinally arranged on the built-in condenser 3 of oil content successively, the exhaust outlet of described semi-closed compressor 1 is connected with the air-fuel mixture import of the built-in condenser 3 of oil content, the refrigerant outlet of the built-in condenser 3 of described oil content is connected with the inlet of flooded evaporator 4 through throttling arrangement 6, and the lubricating oil outlet of the built-in condenser 3 of described oil content is connected with the jet of semi-closed compressor 1 through oil pump 2.
In addition, built-in condenser 3 inner chambers of described oil content are separated into oil eliminator part 11 and condenser portion 12 by the cambered plate 20 at the tilt clapboard 10 longitudinally arranging and two ends thereof, described oil eliminator part 11 bottoms are provided with the flowline 14 that leads to described lubricating oil outlet, in described oil eliminator part 11, be vertically arranged with the mixed oil and gas delivery pipe 13 communicating with described air-fuel mixture import, described oil eliminator part 11 1 sides are provided with oil and filter stainless steel cloth 15, tilt clapboard 10 upper ends that described oil filters stainless steel cloth 15 outsides offer the connected entrance 21 being connected with condenser portion 12, described oil filters stainless steel cloth 15 inner sides and is provided with oil baffle 16, the output of described mixed oil and gas delivery pipe 13 is relative with oil eliminator part 11 opposite sides, described condenser portion 12 inside are vertically arranged with the condensation pipe used in experiments of chemical engineering 17 communicating with extraneous cooling water, and described condenser portion 12 bottoms are provided with the drain pipe 18 communicating with described refrigerant outlet.
In addition, the utility model also comprises injector 5, the gas outlet of the built-in condenser 3 of described oil content is connected with the input of injector 5 through stop valve 19, the output of described injector 5 divides two-way, one tunnel be connected with the oil return opening of flooded evaporator 4, another road is connected with the air entry of semi-closed compressor 1.Can open stop valve according to unit operation situation like this injector 5 is gone to in the oil content interior high-temperature high-pressure refrigerant steam Fen Yi of built-in condenser 3 road, the refrigerator oil and the refrigerant mixture injection that accumulate in flooded evaporator 4 are got back in semi-closed compressor 1, guaranteed the stable of flooded evaporator heat transfer effect.
Kind of refrigeration cycle predominating path of the present invention is: semi-closed compressor 1 sucks the refrigerant vapour of low-temp low-pressure from flooded evaporator 4, be collapsed into high-temperature high-pressure refrigerant steam, it is drained in the built-in condenser 3 of oil content to built-in condenser 3 air inlets of oil content by pipeline by semi-closed compressor 1 exhaust outlet, in the built-in condenser 3 of oil content, high-temperature high-pressure refrigerant steam oil eliminator part 11 in the built-in condenser 3 of oil content is opened with its lubricating oil separation of carrying, high-temperature high-pressure refrigerant and its lubricating oil carrying are separated to oil eliminator part 11 bottoms through first separation by part oil droplet through mixed oil and gas delivery pipe 13 rear steerings, the oil that remainder is arranged through oil eliminator part 11 1 sides filters stainless steel cloth 15 and again separates, separated lubricating oil enters oil pump 2 from flowline 14, then by oil piping system, enter semi-closed compressor 1 and complete oil circulation, high-temperature high-pressure refrigerant steam after separation enters into condenser portion 12 condensations again, high-temperature high-pressure refrigerant steam enters condenser portion 12, and the heat exchange of process condensation pipe used in experiments of chemical engineering 17 is cooled to middle temperature high pressure refrigerant liquid, subsequently, warm high pressure refrigerant liquid flows out from drain pipe 18, becomes low-temperature low-pressure refrigerant liquid after throttling arrangement 6, and low-temperature low-pressure refrigerant liquid flows into flooded evaporator 4 again, in flooded evaporator 4, low-temperature low-pressure refrigerant liquid and refrigerating medium carry out heat exchange, and the heat explosive evaporation of low-temperature low-pressure refrigerant liquid absorption refrigerating medium becomes gas, and refrigerating medium is emitted heat, and temperature reduces, thereby have realized the object of refrigeration, cold-producing medium gas in flooded evaporator 4 is finally sucked by semi-closed compressor 1, completes kind of refrigeration cycle.
[0023]start before semi-closed compressor, oil pump 2 is automatically opened semi-closed compressor 1 is forced to fuel feeding, guarantees that semi-closed compressor 1 can not turn round by oil starvation, until pressure reduction, sets up gradually after semi-closed compressor 1 can draw oil lubrication automatically and automatically closes, and is converted into pressure reduction fuel feeding.
Claims (3)
1. a semi-closed screw type handpiece Water Chilling Units, comprise a pair of semi-closed compressor (1) being connected with valve by pipeline, oil pump (2) and flooded evaporator (4), the gas outlet of described flooded evaporator (4) is connected with the air entry of semi-closed compressor (1), it is characterized in that: it also comprises the built-in condenser of oil content (3), the built-in condenser of described oil content (3) is placed on a common base (9) side by side with flooded evaporator (4), described oil pump (2) and a pair of semi-closed compressor (1) are longitudinally arranged on the built-in condenser of oil content (3) successively, the exhaust outlet of described semi-closed compressor (1) is connected with the air-fuel mixture import of the built-in condenser of oil content (3), the refrigerant outlet of the built-in condenser of described oil content (3) is connected with the inlet of flooded evaporator (4) through throttling arrangement (6), the lubricating oil outlet of the built-in condenser of described oil content (3) is connected with the jet of semi-closed compressor (1) through oil pump (2).
2. semi-closed screw type handpiece Water Chilling Units according to claim 1, it is characterized in that: the built-in condenser of described oil content (3) inner chamber is separated into oil eliminator part (11) and condenser portion (12) by the cambered plate (20) at the tilt clapboard longitudinally arranging (10) and two ends thereof, described oil eliminator part (11) bottom is provided with the flowline (14) that leads to described lubricating oil outlet, in described oil eliminator part (11), be vertically arranged with the mixed oil and gas delivery pipe (13) communicating with described air-fuel mixture import, described oil eliminator part (11) one sides are provided with oil and filter stainless steel cloth (15), tilt clapboard (10) upper end that described oil filters stainless steel cloth (15) outside offers the connected entrance (21) being connected with condenser portion (12), described oil filters stainless steel cloth (15) inner side and is provided with oil baffle (16), the output of described mixed oil and gas delivery pipe (13) is relative with oil eliminator part (11) opposite side, described condenser portion (12) inside is vertically arranged with the condensation pipe used in experiments of chemical engineering (17) communicating with extraneous cooling water, and described condenser portion (12) bottom is provided with the drain pipe (18) communicating with described refrigerant outlet.
3. semi-closed screw type handpiece Water Chilling Units according to claim 1 and 2, it is characterized in that: it also comprises injector (5), the gas outlet of the built-in condenser of described oil content (3) is connected with the input of injector (5) through stop valve (19), the output of described injector (5) divides two-way, one tunnel be connected with the oil return opening of flooded evaporator (4), another road is connected with the air entry of semi-closed compressor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320494443.1U CN203501522U (en) | 2013-08-14 | 2013-08-14 | Semi-hermetic screw chiller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320494443.1U CN203501522U (en) | 2013-08-14 | 2013-08-14 | Semi-hermetic screw chiller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203501522U true CN203501522U (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320494443.1U Expired - Lifetime CN203501522U (en) | 2013-08-14 | 2013-08-14 | Semi-hermetic screw chiller |
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| Country | Link |
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| CN (1) | CN203501522U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571184A (en) * | 2015-12-21 | 2016-05-11 | 重庆美的通用制冷设备有限公司 | Water chilling unit |
| CN106168423A (en) * | 2016-07-18 | 2016-11-30 | 瑞冬集团有限公司 | The condenser of a kind of built-in oil eliminator and double-screw compressor handpiece Water Chilling Units |
| EP3627073A1 (en) | 2018-09-18 | 2020-03-25 | Daikin applied Europe S.p.A. | Flooded evaporator |
| CN114034130A (en) * | 2021-11-29 | 2022-02-11 | 武汉冰谷制冷科技有限公司 | Open-type screw type brine unit |
-
2013
- 2013-08-14 CN CN201320494443.1U patent/CN203501522U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571184A (en) * | 2015-12-21 | 2016-05-11 | 重庆美的通用制冷设备有限公司 | Water chilling unit |
| CN106168423A (en) * | 2016-07-18 | 2016-11-30 | 瑞冬集团有限公司 | The condenser of a kind of built-in oil eliminator and double-screw compressor handpiece Water Chilling Units |
| CN106168423B (en) * | 2016-07-18 | 2018-07-27 | 瑞冬集团有限公司 | A kind of condenser and double-screw compressor handpiece Water Chilling Units of built-in oil eliminator |
| EP3627073A1 (en) | 2018-09-18 | 2020-03-25 | Daikin applied Europe S.p.A. | Flooded evaporator |
| CN114034130A (en) * | 2021-11-29 | 2022-02-11 | 武汉冰谷制冷科技有限公司 | Open-type screw type brine unit |
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Granted publication date: 20140326 |