CN2388573Y

CN2388573Y - Refrigeration compressor

Info

Publication number: CN2388573Y
Application number: CN 99228449
Authority: CN
Inventors: 李强
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-05-21
Filing date: 1999-05-21
Publication date: 2000-07-19
Anticipated expiration: 2009-05-21

Abstract

The utility model discloses a refrigeration compressor. A rotary shaft of an electric engine is connected with a centrifugal disc. One surface of the centrifugal disc is a compressed pipe, and the other surface is an air collecting pipe. The compressed pipe of the centrifugal disc is connected with the air collecting pipe and a liquid transporting pipe. The air collecting pipe is connected with an air discharge pipe by a shaft core bore and an oil storage exhaust chamber. The liquid transporting pipe is connected with a liquid inlet pipe. The liquid inlet pipe is connected with a front cover. The inner side of the front cover is connected with a partition board. Compared with the reciprocating type compressor, and under the standard work condition, the energy can be economized of 57% by using the refrigerating fluid of R502 to realize continuous air transmission, few friction component and residual heat utilization, etc. Therefore, the refrigeration compressor has the advantages of small volume, light weight and high refrigerating efficiency. The size of the refrigerating capacity is totally adaptable. The refrigeration compressor also has the advantages of high reliability, long service life, simple structure and low cost.

Description

Refrigeration compressor

The utility model relates to a kind of refrigeration compressor.

Known refrigeration compressor as reciprocating compressor, is by a driven by motor connecting rod, and connecting rod is connected with the piston of cylinder interior, has air-breathing door, exhaust valve to be connected with air intake duct, blast pipe respectively on the cylinder; As centrifugal compressor, it is that impeller is connected with spiral case by a driven by motor impeller, and spiral case is connected with blast pipe.Though the refrigerant vapor compression that they can reach low pressure becomes the purpose of the refrigerant vapour of high pressure-temperature, it is very low that but they all are the gas transmission coefficients, excessive discharge temperature, the degree of superheat of discharging steam is too big, make the mechanical energy on the motor not caused the energy loss of quite a few by good reusing.These compressor operating are when standard condition, and the degree of superheat of high pressure high temperature vapor is all more than 100 degree, because the degree of superheat is too big, make the input power of compressor increase, add reasons such as the gas transmission coefficient is little, just caused very big energy waste, thereby refrigerating efficiency is low, the life-span short.

The purpose of this utility model is that a kind of refrigerating efficiency height, long refrigeration compressor of life-span will be provided.

The purpose of this utility model is achieved in that this compressor comprises protecgulum, bonnet and casing, protecgulum connects blast pipe, and bonnet connects air inlet pipe, connects motor in the casing, connect centrifugal pan on the drive axle of motor, centrifugal pan simultaneously is a compressed pipe, and another side is a discharge, and the compressed pipe of centrifugal pan connects discharge and woven hose, discharge is connected blast pipe by axle core hole with the oil storage exhaust chamber, woven hose connects feed tube, and feed tube connects protecgulum, and the inboard of protecgulum connects dividing plate.

Described centrifugal pan is three layers, and the discharge in the centrifugal pan is the involute shape.

Described casing inner wall is connected with rifling.

Also be connected with annular pump oil device on the described power transmission shaft.

The utility model is compared with reciprocating compressor, under standard condition, can save energy 57% with the R502 cold-producing medium, owing to realized continuous gas transmission, few, the UTILIZATION OF VESIDUAL HEAT IN of friction parts etc., in light weight so volume is little, the refrigerating efficiency height.The refrigerating capacity size all suits.The reliability height, long service life.Simple in structure, cost is low.Running is steady, low, the easy starting of noise.Compression ratio is changeable, good seal, and the gas transmission coefficient is big.

Elaborate below in conjunction with drawings and Examples.

Fig. 1 is the structure chart of an embodiment of the present utility model.

Fig. 2 is that the A-A of Fig. 1 is to view.

Fig. 3 is that the B-B of Fig. 1 is to view.

Fig. 4 is that the C-C of Fig. 1 is to view.

Fig. 5 is the D of Fig. 1 ₁-D ₁To view.

Fig. 6 is the D of Fig. 1 ₂-D ₂To view.

Fig. 7 is the D of Fig. 1 ₃-D ₃To view.

Fig. 8 is the E of Fig. 1 ₁-E ₁To view.

Fig. 9 is the E of Fig. 1 ₂-E ₂To view.

Figure 10 is the E of Fig. 1 ₃-E ₃To view.

Figure 11 is the F of Fig. 1 ₁-F ₁To view.

1. joints among the figure, 2. protecgulum, 3. dividing plate, 4. bearing cap, 5. blast pipe, 6. bearing, 7. woven hose support, 8. feed tube, 9. woven hose, 10 power transmission shafts, 11. refrigeration oil, 12. pump oil device, 13. centrifugal pan, 13-1. compressed pipe, 13-2. compressed pipe, 13-3. compressed pipe, 13-4. discharge, 13-5. discharge, 13-6. discharge, 14. steel ball, 15. air inlet pipe, 16. power pack, 17. bonnet, 18. electric power connection line, 19. stator, 20. rotor, 21. casing, 22 coils.

The diameter of centrifugal pan 13 is 228mm, and the inlet area of compressed pipe 13-1,13-2,13-3 is respectively 1.82cm ², 0.6cm ², 0.2cm ², discharge area is respectively 0.6cm ², 0.2cm ², 0.07cm ²The sectional area of discharge 13-4,13-5,13-6 all is 0.6cm ², the interior diameter of woven hose 9 is 0.85mm.

In Fig. 1, protecgulum 2 connects blast pipe 5, and bonnet 17 connects air inlet pipe 15, connects motor in the casing 21, connects centrifugal pan 13 on the drive axle of motor 10.Centrifugal pan 13 is three layers, and the left side of every leafing cartridge 13 is respectively compressed pipe 13-1,13-2,13-3, and the right side is respectively discharge 13-4,13-5,13-6.The compressed pipe 13-3 of centrifugal pan 13 connects discharge 13-6 and woven hose 9, and discharge 13-6 is connected blast pipe 5 by axle core hole with the oil storage exhaust chamber, and woven hose 9 connects feed tube 8, and feed tube 8 connects protecgulum 2, and the inboard of protecgulum 2 connects dividing plate 3.Woven hose 9 is bearing in the axle core hole of power transmission shaft 13 by woven hose support 7.

In Figure 11, the discharge 13-4 in the centrifugal pan 13 is the involute shape.

Casing 21 inwalls around centrifugal pan 13 connect a helical form rifling.

Be connected an annular pump oil device 12 respectively on the left side drive shafts 10 of centrifugal pan 13 with on the power transmission shaft 10 on motor right side.

During installation, each pipe joint of rotor 20, centrifugal pan 13, woven hose 9, woven hose support 7 at first are installed, having welded centrifugal pan 13 on power transmission shaft 10, in casing 21, set son 19 then, in the casing 21 around the centrifugal pan 13, connect a helical form rifling, bonnet 17 is welded in the right-hand member of casing 21, on power transmission shaft 10, install pump oil device 12, steel ball 14, power transmission shaft 10 is pushed bearing 6, on protecgulum 2, install blast pipe 5, feed tube 8, dividing plate 3, bearing 6 successively, then the left end of protecgulum 2 with casing 21 is connected.After errorless on inspection, can welding point 1.Woven hose 9 connects the output of refrigeration plant condenser, and blast pipe 5 connects the input of condenser, and air inlet pipe 15 connects the output of evaporimeter.Inject an amount of refrigeration oil from air inlet pipe 15 and blast pipe 5, errorless on inspection back just can be installed in test-run a machine use on the refrigeration plant.

The logical power supply of going up, and then power transmission shaft 10 runnings of centrifugal pan 13, refrigerant vapour is inhaled into casing 21 from air inlet pipe 15, take away behind the heat that motor sends near centrifugal pan 13, steam is followed centrifugal pan 13 motions and is imported protecgulum 2 by rifling under the effect of degree of being stained with, form the air inlet of small pressure current to centrifugal pan 13, the centrifugal compression by repeatedly in centrifugal pan 13 and entad afflux just formed the refrigerant vapour of HTHP.In the exit of compressed pipe 13-3, the porch of discharge 13-4 just, the refrigerant vapour of HTHP mixes with the refrigerant liquid that woven hose 9 is sent here.Refrigerant liquid exists after mixing, and evaporation forms a part of power to centrifugal pan 13 rapidly here, discharges the condenser that compressor enters refrigeration plant through axle core hole, the blast pipe 5 of discharge 13-6, power transmission shaft 10 then.

Under standard condition, after work after a while, the absolute pressure of air intake duct 15 inside is 3.56kg/cm ², the absolute pressure of blast pipe 5 inside is 13.3kg/cm ², temperature is 30 ℃, operating current 4.55A.If it is working properly that each parameter all just is considered as in above-mentioned scope.

Owing to producing the power backspace in centrifugal pan 13 inner evaporations, the part of refrigerator liquid acts on centrifugal pan 13, thereby make compressor use the waste heat of superheat section, the amount of these waste heats is 860 kilocalories every kilowatt-hour, the steam that blast pipe 5 is discharged is not the high pressure-temperature superheated vapor, but the full steam that closes of high pressure.

Because the friction parts are few especially, so the utility model can reduce friction than reciprocating compressor, the life-span has also prolonged greatly.Simultaneously, owing to do not have the inlet and outlet valve, so can reduce pressure at expulsion 0.5kg/cm ²

Because refrigerant vapour finishes to compression from entering centrifugal pan 13, discharging centrifugal pan 13 all is to finish in the system of a sealing, adding refrigerant vapour resulting energy in centrifugal pan 13 is directly proportional with the proportion of steam, with square being directly proportional of the rotating speed of centrifugal pan 13, so, output factor can be brought up to more than 0.97 by original 0.69.

Claims

1. refrigeration compressor, this compressor comprises protecgulum, bonnet and casing, protecgulum connects blast pipe, bonnet connects air inlet pipe, connect motor in the casing, it is characterized in that connecting on the drive axle of motor centrifugal pan, centrifugal pan simultaneously is a compressed pipe, another side is a discharge, the compressed pipe of centrifugal pan connects discharge and woven hose, and discharge is connected blast pipe by axle core hole with the oil storage exhaust chamber, and woven hose connects feed tube, feed tube connects protecgulum, and the inboard of protecgulum connects dividing plate.

2. refrigeration compressor according to claim 1 is characterized in that centrifugal pan is three layers, and the discharge in the centrifugal pan is the involute shape.

3. refrigeration compressor according to claim 1 is characterized in that casing inner wall is connected with rifling.

4. refrigeration compressor according to claim 1 is characterized in that also being connected with on the power transmission shaft annular pump oil device.