CN101571132A - Oil cooling device in screw compressor - Google Patents
Oil cooling device in screw compressor Download PDFInfo
- Publication number
- CN101571132A CN101571132A CNA2008100367458A CN200810036745A CN101571132A CN 101571132 A CN101571132 A CN 101571132A CN A2008100367458 A CNA2008100367458 A CN A2008100367458A CN 200810036745 A CN200810036745 A CN 200810036745A CN 101571132 A CN101571132 A CN 101571132A
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- oil cooler
- oil
- pipe
- heat exchanger
- oil cooling
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Abstract
The invention relates to an oil cooling device in a screw compressor, which comprises an oil cooler (3); the oil cooling device is characterized in that the oil cooler (3) is a bushing type heat exchanger; the bushing type heat exchanger is wound into a circular shape or an elliptical shape through two homocentric steel tubes or copper tubes, an inner tube (31) is longer than an outer tube (32), and the inner tube (31) and the outer tube (32) are divided into two independent parts, namely an inner tube cavity (33) and a gap cavity (34) between the inner tube and the outer tube through an end cover; and the oil cooling device has the advantages of low manufacturing cost and reasonable structure, and is particularly suitable for oil cooling of the screw compressors in a low-temperature freezing unit and an ice storage refrigerating unit.
Description
Technical field
The present invention relates to a kind of screw compressor, relate in particular to the oil cooler in this screw compressor.
Background technique
Lubricant oil has play a part very important to the proper functioning of need whelk bar compressor: sound insulation weakening, internal leakage sealing, heat absorption reduce delivery temperature etc.Lubricated oil properties is bigger with the variable effect of oil temperature, when especially the screw rod unit was operated in harsh relatively operating mode, the delivery temperature of compressor was higher, and at this moment lubricating oil temperature can raise accordingly, and with the lengthening of compressor operating time, the oily temperature of compressor self has an accumulation.The oil temperature rise, oil viscosity reduces, and internal leakage strengthens, and compression performance reduces; Oil temperature is too high, lubricant oil even can tie charcoal, and serious meeting causes that compressor " stings tooth " and damage.At this moment generally can take oil cooler in the freezing unit of low temperature screw rod, oil cooler commonly used has two kinds:
As seen from Figure 1: oil cooler 1 can adopt shell and tube heat exchanger or plate type heat exchanger, and two groups of pipelines are arranged on the oil cooler, and one the tunnel is used as the turnover of oil, and other one the tunnel is used as the turnover of refrigeration.By thermal switch 11 monitors oil temperature, when the needs cooling has been arrived in oily temperature rise, solenoid valve 12 on the temperature detect switch (TDS) controlling liquid pipeline is opened, one road refrigeration agent of drawing from the refrigerant liquid pipeline enters a passage of oil cooler through heating power expansion valve 13 like this, and the heat that absorbs high temperature oil in oil cooler becomes the intakeport that enters compressor behind the gas.The oil of high temperature is got back to compressor after lowering the temperature through oil cooler.Among the figure: condenser 100, vaporizer 200.This oil cooler system complex, and, can lose refrigeration system part refrigerating capacity owing to use refrigeration agent to be used as low-temperature receiver.Very uneconomical.
As seen from Figure 2: oil cooler 2 can adopt shell and tube heat exchanger or plate type heat exchanger, and two groups of pipelines are arranged on the oil cooler, and one the tunnel is used as the turnover of oil, and other one the tunnel is used as the turnover of cooling water.By thermal switch 21 monitors oil temperature, when the needs cooling has been arrived in oily temperature rise, solenoid valve 22 on the temperature detect switch (TDS) control cooling water pipeline is opened, and the cooling water that temperature is lower enters a passage of oil cooler like this, and the heat that absorbs high temperature oil in oil cooler is got back in the cooling water system.The oil of high temperature is got back to compressor after lowering the temperature through oil cooler.Among the figure: condenser 100, vaporizer 200.Relative Fig. 1, this oil cooler system is simpler, and owing to use cooling water to be used as low-temperature receiver, the heat exchange area of oil cooler is less relatively.But oil cooler system shown in Figure 2 is owing to adopt shell and tube heat exchanger or plate type heat exchanger, and when particularly adopting plate type heat exchanger, cooling water system meeting fouling causes the inconvenience that this system is cleaned.The consumption of lubricant oil is very big in the oil cooler system illustrated in figures 1 and 2 in addition, very waste.
Summary of the invention
The technical issues that need to address of the present invention have provided the oil cooler in a kind of screw compressor, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
The present invention includes: oil cooler; Described oil cooler is a double pipe heat exchanger; Described double pipe heat exchanger adopts two concentric steel pipes or copper pipe to turn to circle or ellipse, and interior pipe is outer pipe range, the spatia two-part in interior pipe and outer tube are divided into independently by end cap between tube chamber and the inner and outer pipes.
Compared with prior art, the invention has the beneficial effects as follows: cheap, rational in infrastructure; The oil cooling that is particularly useful for helical-lobe compressor in cryogenic freezing unit and the ice storage cooling machine set but.
Description of drawings
Fig. 1 adopts refrigerant cools type oil cooler and vaporizer, compressor, condenser composite structure schematic representation;
Fig. 2 adopts water cooling type oil cooler and vaporizer, compressor, condenser composite structure schematic representation;
Fig. 3 is a structural representation of the present invention;
Fig. 4 is the generalized section of Fig. 3 middle sleeve heat exchanger.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
By Fig. 3, Fig. 4 as seen: the present invention includes: oil cooler 3; Described oil cooler 3 is double pipe heat exchangers; Described double pipe heat exchanger adopts two concentric steel pipes or copper pipe to turn to circle or ellipse, and interior pipe 31 is long than outer tube 32, spatia 34 two-part in interior pipe 31 and outer tube 32 are divided into independently by end cap between tube chamber 33 and the inner and outer pipes.
As shown in Figure 3, the present invention directly draws a branch road from the cooling water system of unit, and the control of cooling water process temperature control electromagnetic 4 enters the spatia of oil cooler 3, and cooling water flows in spatia and absorbs the high temperature grease liberated heat.The lubricant oil of high temperature enters the interior tube chamber of oil cooler 3 through piping in addition, flows to flow back to compressor after emitting the heat cooling in interior tube chamber.Temperature control electromagnetic 4 is by heat responsive element monitoring returning-oil temperature, can control the flow of cooling water and then accurately control the temperature of lubricant oil.Two heat exchanging fluids can be realized complete countercurrent flow in this oil cooler.The heat-exchange performance excellence, and the internal surface of interior pipe is smooth, and it is convenient to clean.
The present invention detects through actual thermal property, is designed to the copper pipe of 19mm in the equivalent diameter of interior pipe, and outer tube is 1, and " steel pipe, sleeve-tube heat exchanger length are 12m, and when heat transferring medium was respectively water and lubricant oil ISO VG320, heat exchange quantity can reach 30kw.The cost of material of this sleeve-tube heat exchanger only is about 1200 yuan.Low more than the purchasing price that adopts case tube heat exchanger shown in Figure 1 and plate type heat exchanger shown in Figure 2.The business economic benefit is considerable.
Claims (2)
1. the oil cooler in the screw compressor comprises: oil cooler (3); It is characterized in that: described oil cooler (3) is a double pipe heat exchanger; Described double pipe heat exchanger adopts two concentric steel pipes or copper pipe to turn to circle or ellipse, interior pipe (31) is long than outer tube (32), spatia (34) two-part in interior pipe (31) and outer tube (32) are divided into independently by end cap between tube chamber (33) and the inner and outer pipes.
2. the oil cooler in the screw compressor according to claim 1 is characterized in that: pipe (31) adopts special-shaped copper pipe or manages the steel pipe of external welding around steel disc in described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100367458A CN101571132A (en) | 2008-04-28 | 2008-04-28 | Oil cooling device in screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100367458A CN101571132A (en) | 2008-04-28 | 2008-04-28 | Oil cooling device in screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101571132A true CN101571132A (en) | 2009-11-04 |
Family
ID=41230575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100367458A Pending CN101571132A (en) | 2008-04-28 | 2008-04-28 | Oil cooling device in screw compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101571132A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822507A (en) * | 2014-03-03 | 2014-05-28 | 无锡市飞天油脂有限公司 | Casing type temperature control device for lubricating grease |
| CN103867451A (en) * | 2014-04-01 | 2014-06-18 | 杭州凯嘉节能科技有限公司 | High-temperature waste heat recovery machine and process for screw type air compressor |
| CN104235334A (en) * | 2013-10-30 | 2014-12-24 | 莱州市盛乐机械有限公司 | Air-cooling and water-cooling integrated finned tubular radiator for lubricating oil of gear box |
| CN104713384A (en) * | 2015-03-13 | 2015-06-17 | 芜湖凯博实业股份有限公司 | Cooling tower |
| CN109028624A (en) * | 2018-06-25 | 2018-12-18 | 山东阿尔普尔节能装备有限公司 | A kind of frost removal type air-cooled screw unit |
| CN109028626A (en) * | 2018-06-25 | 2018-12-18 | 山东阿尔普尔节能装备有限公司 | A kind of high accumulation energy type air-cooled screw unit |
| CN109028625A (en) * | 2018-06-25 | 2018-12-18 | 山东阿尔普尔节能装备有限公司 | A kind of high-efficiency air cooling Screw chiller |
| CN109028251A (en) * | 2018-06-25 | 2018-12-18 | 山东阿尔普尔节能装备有限公司 | A kind of multifunctional wind cooling Screw chiller ground heating system |
| CN109059325A (en) * | 2018-06-25 | 2018-12-21 | 山东阿尔普尔节能装备有限公司 | A kind of composite solar low form air-cooled screw unit |
-
2008
- 2008-04-28 CN CNA2008100367458A patent/CN101571132A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235334A (en) * | 2013-10-30 | 2014-12-24 | 莱州市盛乐机械有限公司 | Air-cooling and water-cooling integrated finned tubular radiator for lubricating oil of gear box |
| CN103822507A (en) * | 2014-03-03 | 2014-05-28 | 无锡市飞天油脂有限公司 | Casing type temperature control device for lubricating grease |
| CN103867451A (en) * | 2014-04-01 | 2014-06-18 | 杭州凯嘉节能科技有限公司 | High-temperature waste heat recovery machine and process for screw type air compressor |
| CN103867451B (en) * | 2014-04-01 | 2016-04-27 | 杭州凯嘉节能科技有限公司 | A kind of screw-rod air compressor high-temperature residual heat recycling machine and technique |
| CN104713384A (en) * | 2015-03-13 | 2015-06-17 | 芜湖凯博实业股份有限公司 | Cooling tower |
| CN109028624A (en) * | 2018-06-25 | 2018-12-18 | 山东阿尔普尔节能装备有限公司 | A kind of frost removal type air-cooled screw unit |
| CN109028626A (en) * | 2018-06-25 | 2018-12-18 | 山东阿尔普尔节能装备有限公司 | A kind of high accumulation energy type air-cooled screw unit |
| CN109028625A (en) * | 2018-06-25 | 2018-12-18 | 山东阿尔普尔节能装备有限公司 | A kind of high-efficiency air cooling Screw chiller |
| CN109028251A (en) * | 2018-06-25 | 2018-12-18 | 山东阿尔普尔节能装备有限公司 | A kind of multifunctional wind cooling Screw chiller ground heating system |
| CN109059325A (en) * | 2018-06-25 | 2018-12-21 | 山东阿尔普尔节能装备有限公司 | A kind of composite solar low form air-cooled screw unit |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091104 |