CN205245598U - A overlapping low -temperature level unit sled piece for inflammable and explosive medium - Google Patents
A overlapping low -temperature level unit sled piece for inflammable and explosive medium Download PDFInfo
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- CN205245598U CN205245598U CN201520906025.8U CN201520906025U CN205245598U CN 205245598 U CN205245598 U CN 205245598U CN 201520906025 U CN201520906025 U CN 201520906025U CN 205245598 U CN205245598 U CN 205245598U
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- oil
- regenerator
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- inflammable
- screw compressor
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Abstract
The utility model discloses an overlapping low -temperature level unit sled piece for inflammable and explosive medium, regenerator, oil separator and cistern are installed on the support, and regenerator and cistern are located oil separator's rear, screw compressor and motor setting are on oil separator's upper portion, and screw compressor links to each other with the motor, and the intercommunication has the oil separator intake pipe between screw compressor and the oil separator, the evaporation -condensation ware is installed on the support, is located between regenerator and the cistern, oil cooler installs on the support, is located between cistern and the oil separator. The utility model discloses the available inflammable and explosive medium coolant that does to area is less, makes things convenient for whole cascade refrigeration system's installation.
Description
Technical field
The utility model relates to refrigeration plant, refers to particularly a kind of overlapping for inflammable and explosive mediumLow temperature level unit sled piece.
Background technology
Screw compressor is a kind of positive displacement compressor of high speed rotary, dwindles by swept volumeCarry out gas compression, except the screw rotor of two high speed rotaries, there is no other moving component.Refrigeration compressor has advantages of Rotary Compressor separately, for example: volume is little, lightweight, fortuneTurn steadily, few easy workout part, efficiency is high, single-stage pressure ratio large, energy step-less adjustment etc. Screw is pressedContracting machine is developed rapidly and is applied in compressor industry. Because screw compressor single-stage has largerWhen broad range of capacity of compression, therefore be applicable to the various operating modes of high, medium and low temperature, therefore,Screw compressor is widely used in each industrial circles such as air-conditioning, freezing, chemical industry, water conservancy,Particularly refrigerating field, belongs to the best type in industrial refrigeration field.
Because screw compressor is a kind of High speed Rotating Mechanical Devices, between rotor, rotor and housing itBetween by clearance seal, to spray into a certain amount of machine oil to compressor operating chamber and (be about therefore be in operation0.6～1.3% left and right of swept volume, larger this ratio of screw compressor of theoretical displacement moreLittle), to reach lubricated, seal, improve compressor operating efficiency, to reduce delivery temperature and noiseEtc. object. Need a set of efficient, reliable oil cooling apparatus for this reason.
So, in traditional cascade refrigeration system low temperature side, except what circulate for cooling mediumOutside condenser/evaporator, liquid reservoir, regenerator, also should comprise oil eliminator, oil cooler, oilFilters etc. are for the equipment of oil circulation. Thus, the floor space of whole low temperature side unit willIncrease, volume also can be larger. For in the time that whole cascade refrigeration system is installed, can bring all like thisHow inconvenient.
In traditional cascade refrigeration system low temperature side, be situated between as the not environmental protection often of cooling mediumMatter, such as freon etc.; And environmental protection medium often has inflammable and explosive shortcoming, such as ethene etc.Therefore, providing a kind of overlapping low-temperature level unit that can be used for inflammable and explosive medium is current refrigeration plantThe problem of the required solution in field.
Summary of the invention
The purpose of this utility model is to solve the deficiencies in the prior art, provides a kind of for inflammable easyThe overlapping low-temperature level unit sled piece of quick-fried medium, its available inflammable and explosive medium is cooling medium, andFloor space is less, facilitates the installation of whole cascade refrigeration system.
For achieving the above object, the designed overlapping for inflammable and explosive medium of the utility model is lowTemperature level unit sled piece, comprises regenerator, screw compressor, oil pump, evaporative condenser, oil contentFrom device, motor, liquid reservoir and oil cooler, its special character is: described regenerator, oil contentBe arranged on bearing from device and liquid reservoir, described regenerator and liquid reservoir are positioned at the rear of oil eliminator;Described screw compressor and motor are arranged on the top of oil eliminator, described screw compressor withMotor is connected, and is communicated with oil eliminator air inlet pipe between described screw compressor and oil eliminator;Described evaporative condenser is arranged on bearing, between regenerator and liquid reservoir; Described oil cooling butDevice is arranged on bearing, between liquid reservoir and oil eliminator; Described regenerator and screw are pressedContracting machine connects by regenerator escape pipe, and described evaporative condenser and oil eliminator enter by condenserTracheae connects, and described evaporative condenser is connected by liquid reservoir feed tube with liquid reservoir, described oil contentBe connected by oil cooling feed pipe with oil cooler from device, described regenerator and liquid reservoir pass through regeneratorFeed tube connects; On described regenerator escape pipe, being provided with the expansion vessel being connected with expansion vessel returnsTracheae, described condenser air inlet pipe is provided with the expansion vessel air inlet pipe being connected with expansion vessel, instituteState and on regenerator, be provided with the regenerator drain pipe that is connected with device for drying and filtering and be connected with evaporimeterEvaporimeter muffler; Between described evaporative condenser and liquid reservoir, be also connected with balance pipe; Described oilPump is positioned at the below of oil eliminator, and one end is connected with oil cooler, the other end respectively with oily coarse filtrationOne end of device is connected with one end of olein filter; One end of described oily coarse filter also with screwCompressor is connected, and the other end is connected with oil cooler; The other end of described olein filter and screw rodFormula compressor is connected; Between described screw compressor and oil eliminator, be also communicated with oil pipe; DescribedIn the tube side side of liquid reservoir, oil eliminator and regenerator and shell side side, be respectively arranged with a safety valve.
Further, on described oil eliminator, be placed with electric control box.
Further, described evaporative condenser is shell-and-plate evaporative condenser.
Further, on described liquid reservoir, be provided with magnetic flap level gauge and Pressure gauge.
In technique scheme, the position of described evaporative condenser is higher than liquid reservoir.
In the utility model, by regenerator, screw compressor, oil pump, evaporative condenser,The important devices such as oil eliminator, motor, liquid reservoir and oil cooler are all arranged on same bearing,Not only save floor space but also facilitated the installation of whole cascade refrigeration system. In the utility model, establishBe equipped with olein filter and oily coarse filter, make refrigerator oil classified filtering, press to meet screwThe lubricating requirement of different parts in contracting machine. Due in the utility model, what use is inflammable easyQuick-fried medium, so be all respectively arranged with safety valve on liquid reservoir, oil eliminator and regenerator, usesIn the protection to whole low temperature side. Between described evaporative condenser and liquid reservoir, be also connected with balancePipe, the inert gas of saving bit by bit in evaporative condenser is got rid of in acting as of balance pipe, in order to avoid impact originallyThe refrigeration performance of utility model. Evaporative condenser in the utility model is shell-and-plate evaporative condenser,Because traditional shell-and-tube evaporative condenser volume is large, floor space is large, is difficult on support stacking;Although plate evaporating condensator volume is little, can not be applicable to inflammable and explosive medium; So plateIt is the most suitable that shell-type evaporative condenser is used in the utility model.
In sum, the utility model floor space is little, is easy to the installation of whole cascade refrigeration system;And can use inflammable and explosive medium as cooling medium.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the rearview of Fig. 1, omits the rear side part that is blocked in figure.
Fig. 4 is flowage structure schematic diagram of the present utility model.
In figure: regenerator 1, regenerator escape pipe 2, bearing 3, expansion vessel muffler 4, spiral shellRod-type compressor 5, oil pump 6, evaporative condenser 7, oil eliminator 8, motor 9, regenerator go outLiquid pipe 10, balance pipe 11, condenser air inlet pipe 12, liquid reservoir feed tube 13, expansion vessel enterTracheae 14, liquid reservoir 15, oil cooler 16, oil cooling feed pipe 17, oily coarse filter 18, electricityGas control cabinet 19, olein filter 20, evaporimeter muffler 21, oil eliminator air inlet pipe 22,Regenerator feed tube 23, safety valve 24, magnetic flap level gauge 25, Pressure gauge 26.
Detailed description of the invention
Describe performance of the present utility model in detail below in conjunction with accompanying drawing, but it does not form to thisThe restriction of utility model, only does for example. By explanation, advantage of the present utility model will simultaneouslyBecome more clear and easily understand.
As shown in the figure, regenerator 1, evaporative condenser 7, oil eliminator 8 are installed on bearing 3With liquid reservoir 15. Oil eliminator 8 is positioned at the rear side of regenerator 1 and liquid reservoir 15, evaporative condenserDevice 7 is between regenerator 1 and liquid reservoir 15. The position of evaporative condenser 7 will be higher than liquid reservoir15. Electric control box 19, screw compressor 5 and motor are installed successively on oil eliminator 89; Screw compressor 5 is connected with motor 9 with electric control box 19 respectively, screw compressor5 and oil eliminator 8 between be communicated with oil eliminator air inlet pipe 22. Peace below oil eliminator 8Oil pump 6 is housed. Oil cooler 16 is arranged on bearing 3, is positioned at liquid reservoir 15 and oil eliminator 8Between.
Between regenerator 1 and screw compressor 5, be connected with regenerator escape pipe 2; Evaporating coldBetween condenser 7 and oil eliminator 8, be connected with condenser air inlet pipe 12; Evaporative condenser 7 and storage liquidBetween device 15, be connected with liquid reservoir air inlet pipe 13; Between oil eliminator 8 and oil cooler 16, connectThere is oil cooling feed pipe 17; Between regenerator 1 and liquid reservoir 15, be connected with regenerator feed tube 23.
On described regenerator escape pipe 2, be provided with the expansion vessel muffler being connected with expansion vessel4; In described condenser air inlet pipe 12, be provided with the expansion vessel air inlet pipe being connected with expansion vessel14; On described regenerator 1, be provided with the regenerator drain pipe 10 that is connected with device for drying and filtering and withThe evaporimeter muffler 21 that evaporimeter is connected. Device for drying and filtering and evaporimeter are user's side, not peaceBe contained in sled piece described in the utility model.
For example, because the utility model used medium is inflammable and explosive medium, ethene. So at storage liquidIn the pipe layer side of device 15, oil eliminator 8 and regenerator 1 and shell side, be respectively arranged with a safetyValve 24; And the material of regenerator 1, evaporative condenser 7 and liquid reservoir 15 is all stainless steel. ThisThe structure of sample is not only applicable to inflammable and explosive medium, and is applicable to have higher to cooling low temperature yetSituation about requiring.
Inert gas is easily saved bit by bit by the corner on evaporative condenser 7 tops, if this inert gas is notBe discharged from, can affect the performance of whole cascade refrigeration system, so evaporative condenser 7 HesBetween liquid reservoir 15, be also connected with balance pipe 11. Balance pipe 11 can be effectively by evaporative condenserInert gas in 7 is discharged after being incorporated in liquid reservoir 15.
Described oil pump 6 is positioned at the below of oil eliminator 8, and one end is connected with oil cooler 16, anotherEnd is connected with one end of olein filter 20 with one end of oily coarse filter 18 respectively. Oil coarse filtrationOne end of device 18 is also connected with screw compressor 5 in addition, and the other end is connected with oil cooler 16;The other end of described olein filter 20 is connected with screw compressor 5. Described screw compressor5 and oil eliminator 8 between be also communicated with oil pipe.
Described evaporative condenser 7 is shell-and-plate evaporative condenser. On described liquid reservoir 15, be provided withMagnetic flap level gauge 25 and Pressure gauge 26, can monitor at any time.
The utility model, in the time of work, is divided into two circulations. In using ethene as the utility modelMedium, a kind of refrigeration cycle that circulation is ethene, the circulation that another circulation is refrigerator oil oil.
In screw compressor 5, be compacted into ethylene gas and the refrigerator oil content of HTHPDo not enter to oil eliminator 8 by oil eliminator air inlet pipe 22. After oil eliminator 8 separates,Ethylene gas and the refrigerator oil of HTHP are divided into two-way, the ethylene gas that a road is HTHP,Another road is the refrigerator oil of HTHP. The ethylene gas of HTHP is by oil eliminator 8The drain tap of portion enters into condenser air inlet pipe 12, is then sent into by condenser air inlet pipe 12Cooling to carrying out in evaporative condenser 7. The ethylene gas of HTHP is cooling through evaporative condenser 7After, the Ethylene Liquid that becomes high pressure enters the top cylinder of liquid reservoir 15 by liquid reservoir feed tube 13Body. The Ethylene Liquid of high pressure enters after liquid reservoir 15, then flows into back by regenerator feed tube 23The tube side of hot device 1, with low-temp low-pressure ethylene gas heat exchange outside tube side, cooling. The ethene of high pressureAfter being cooled, liquid flow to the choke valve of user's side by regenerator drain pipe 10. Described throttling valve positionBetween the device for drying and filtering and evaporimeter of user's side. Choke valve act as step-down, so now,The Ethylene Liquid of high pressure, through choke valve, becomes the ethylene gas liquid mixture of low-temp low-pressure. Then lowThe ethylene gas liquid mixture of temperature low pressure flows into the evaporimeter shell of user's side, on the way the outer high temperature of absorption tubeThe heat of monosilane and explosive evaporation, thus the ethylene gas of low-temp low-pressure become. Low-temp low-pressureEthylene gas enters the shell of regenerator 1 by evaporimeter muffler 21, for absorbing above-mentioned stepsThe heat of the high-pressure ethylene liquid in middle regenerator 1 tube side. Then, ethylene gas is now logical againCross regenerator escape pipe 2 and get back to helical-lobe compressor 5. Thereby complete the kind of refrigeration cycle of whole low-pressure side.
Another is convenient, and a refrigerator oil part for HTHP separates from oil by oil cooling feed pipe 17Device 8 enters into oil cooler 16; The less refrigerator oil of another part impurity separates by oilOil pipe between device 8 and helical-lobe compressor 5 is got back in helical-lobe compressor 5. Enter into oil coolerA cooling machine oil part in 16 enters into oily coarse filter 18, and wherein a part is by by oily thick mistakeAfter filter 18 filters, return to helical-lobe compressor 5, another part flows into olein filter 20 and filtersAfter return to again helical-lobe compressor; The another part of cooling machine oil that enters into oil cooler 16 is coldBut machine oil flows into oil pump 6, then sends into olein filter 20 by oil pump 6 and filter and return to screw rodCompressor 5. Thus, complete the circulation of whole low-pressure side cooling machine oil. Enter into oil cooler 16In cooling machine oil enter into oily coarse filter 18, a part by filtering by oily coarse filter 18After return to helical-lobe compressor 5, another part flows into after olein filter 20 filters and returns to spiral shell againBar compressor; In the time that oil pressure is larger, cooling machine oil returns by the check valve before olein filter 20Flow to oil cooler 16, thus, complete the circulation of whole low-pressure side cooling machine oil. Oil pump 6 beWhile adding cooling machine oil, open, do not participate in cyclic process.
Claims (5)
1. for an overlapping low-temperature level unit sled piece for inflammable and explosive medium, comprise regenerator (1),Screw compressor (5), oil pump (6), evaporative condenser (7), oil eliminator (8),Motor (9), liquid reservoir (15) and oil cooler (16), is characterized in that:
Described regenerator (1), oil eliminator (8) and liquid reservoir (15) are arranged on bearing (3)Upper, described regenerator (1) and liquid reservoir (15) are positioned at the rear of oil eliminator (8);
Described screw compressor (5) and motor (9) are arranged on the top of oil eliminator (8),Described screw compressor (5) is connected with motor (9), described screw compressor (5) and oilBetween separator (8), be communicated with oil eliminator air inlet pipe (22);
It is upper that described evaporative condenser (7) is arranged on bearing (3), is positioned at regenerator (1) and storage liquidBetween device (15);
It is upper that described oil cooler (16) is arranged on bearing (3), is positioned at liquid reservoir (15) and oil contentBetween device (8);
Described regenerator (1) is connected by regenerator escape pipe (2) with screw compressor (5),Described evaporative condenser (7) is connected by condenser air inlet pipe (12) with oil eliminator (8),Described evaporative condenser (7) is connected by liquid reservoir feed tube (13) with liquid reservoir (15), instituteState oil eliminator (8) and be connected by oil cooling feed pipe (17) with oil cooler (16), described timeHot device (1) is connected by regenerator feed tube (23) with liquid reservoir (15);
On described regenerator escape pipe (2), be provided with the expansion vessel muffler being connected with expansion vessel(4), described condenser air inlet pipe (12) is provided with the expansion vessel air inlet being connected with expansion vesselPipe (14), is provided with the regenerator drain pipe being connected with device for drying and filtering on described regenerator (1)(10) with the evaporimeter muffler (21) being connected with evaporimeter;
Between described evaporative condenser (7) and liquid reservoir (15), be also connected with balance pipe (11);
Described oil pump (6) is positioned at the below of oil eliminator (8), one end and oil cooler (16)Be connected, the other end respectively with one of one end of oily coarse filter (18) and olein filter (20)End is connected; One end of described oily coarse filter (18) is also connected with screw compressor (5), anotherOne end is connected with oil cooler (16); The other end and the screw of described olein filter (20)Compressor (5) is connected; Between described screw compressor (5) and oil eliminator (8), be also communicated withThere is oil pipe;
Pipe layer side and the shell of described liquid reservoir (15), oil eliminator (8) and regenerator (1)In side, be respectively arranged with a safety valve (24).
2. the sled of the overlapping low-temperature level unit for inflammable and explosive medium according to claim 1Piece, is characterized in that: on described oil eliminator (8), be placed with electric control box (19).
3. the overlapping low-temperature level unit for inflammable and explosive medium according to claim 1 and 2Sled piece, is characterized in that: described evaporative condenser (7) is shell-and-plate evaporative condenser.
4. the overlapping low-temperature level unit for inflammable and explosive medium according to claim 1 and 2Sled piece, it is characterized in that: on described liquid reservoir (15), be provided with magnetic flap level gauge (25) andPressure gauge (26).
5. the overlapping low-temperature level unit for inflammable and explosive medium according to claim 1 and 2Sled piece, is characterized in that: the position of described evaporative condenser (7) is higher than liquid reservoir (15).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520906025.8U CN205245598U (en) | 2015-11-13 | 2015-11-13 | A overlapping low -temperature level unit sled piece for inflammable and explosive medium |
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| CN201520906025.8U CN205245598U (en) | 2015-11-13 | 2015-11-13 | A overlapping low -temperature level unit sled piece for inflammable and explosive medium |
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| CN205245598U true CN205245598U (en) | 2016-05-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023108856A1 (en) * | 2021-12-16 | 2023-06-22 | 福建雪人制冷设备有限公司 | Ammonia refrigeration compression, condensation and liquid storage unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023108856A1 (en) * | 2021-12-16 | 2023-06-22 | 福建雪人制冷设备有限公司 | Ammonia refrigeration compression, condensation and liquid storage unit |
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