CN206221245U - Fluid ejection mechanisms and screw compressor - Google Patents

Abstract

The utility model provides fluid ejection mechanisms and screw compressor, wherein, fluid ejection mechanisms include：Fixed scroll, first flow is formed with the fixed scroll；Demarcation strip, second flow channel is formed with the demarcation strip；Bindiny mechanism, the bindiny mechanism is arranged between the fixed scroll and the demarcation strip, and the bindiny mechanism is used to connect the first flow with the second flow channel.According to fluid ejection mechanisms of the present utility model and screw compressor, with advantages below：1st, screw compressor high working efficiency, delivery temperature is relatively low, and reliability is higher；The 2nd, fluid ejection mechanisms are set between demarcation strip and fixed scroll, and simple structure assembles easy, are solved the problems, such as to open up flow jet channels complexity on the compressor and assembling is difficult.

Description

Fluid ejection mechanisms and screw compressor

Technical field

The utility model is related to scroll compression field, in particular to a kind of fluid ejection mechanisms and scroll compression Machine.

Background technology

Screw compressor has that simple structure, small volume, light weight, noise be low, mechanical efficiency is high and the spy such as smooth running Point.But when environment temperature than it is relatively low when, refrigerant suction specific volume increase, refrigerant mass fluxes reduce, and heating capacity is also corresponding Decline, then the operating efficiency of compressor decrease.Other environment temperature is down to below zero degrees celsius, evaporating temperature is too low When, common refrigerated air-conditioning system is used to heat can cause scroll compressor compresses than increase, there is repeated compression, so that pressure Contracting machine delivery temperature is drastically raised, and more than the working range that compressor is allowed, causes high frequent start-stop, and system cannot be normal Work, can cause compressor to burn when serious.

In order to solve that compressor operating efficiency is low and delivery temperature drastically elevated problem, common solution is from sudden strain of a muscle Hair device or economizer introduce low-temperature steam or a part of high-temperature high-pressure refrigerant liquid throttling of condensator outlet are turned into relatively low Temperature gas-liquid two-phase fluid is injected directly into the compression chamber of compressor, and temperature is vented to reach to improve compressor operating efficiency and reduce The purpose of degree.

Fluid injection head structure is realized reducing delivery temperature and improves operating efficiency：Connection member be used for connecting pipe part with External pipe part, and make the part be fixed with respect to housing, conduit component and connection member be arranged on compressor and (referring to patent 201010615711.1) outside independently of support member.But the fluid injection head structure assembles and moves fixed scroll Pump housing aligning is to complete simultaneously, therefore injection structure assembling is relatively difficult.

Utility model content

The utility model aims to provide a kind of fluid ejection mechanisms and screw compressor, and it can solve the problem that in the prior art The problem that flow jet channels are complicated and assembling is difficult.

The utility model provides a kind of fluid ejection mechanisms, including：

Fixed scroll, first flow is formed with the fixed scroll；

Demarcation strip, second flow channel is formed with the demarcation strip；

Bindiny mechanism, the bindiny mechanism is arranged between the fixed scroll and the demarcation strip, and the bindiny mechanism uses Connected with the second flow channel in by the first flow.

Further, the demarcation strip has the boss extended towards the fixed scroll, and the second flow channel is formed in institute State on boss.

Further, the second flow channel has the first opening and the second opening, and first opening is located at the separation The lateral surface of plate.

Further, the bindiny mechanism includes connector, and the connector has relative first end and the second end, institute The first end for stating connector is connected with the first flow, and the second end of the connector and the second of the second flow channel is open Connection.

Further, the bindiny mechanism includes fixed plate, and the fixed plate is arranged on the first end of the connector, institute Fixed plate is stated to be arranged in the fixed scroll.

Further, the second end of the connector is provided with for by the connector and connecing that the demarcation strip is connected Head.

Further, second opening is located at the downside of the demarcation strip, and the port of the first flow is located at institute The lateral wall of fixed scroll is stated, the connector is L-shaped.

Further, it is described second opening positioned at the demarcation strip downside, the port of the first flow upward and The second opening with the second flow channel is oppositely arranged, and the connector is in linear.

Further, the bindiny mechanism includes fixed plate, and the fixed plate is arranged on the second end of the connector, institute Fixed plate is stated to be arranged on the demarcation strip.

Further, the first end of the connector is provided with for by the connector and connecing that the fixed scroll is connected Head.

Further, second opening is located at the medial surface of the demarcation strip, and the port of the first flow is located at institute The back side of fixed scroll is stated, the connector is L-shaped.

Further, second opening is located at the downside of the demarcation strip, and the port of the first flow is located at institute State the back side of fixed scroll and be oppositely arranged with the second opening of the second flow channel, the connector is in linear.

Further, second opening is located at the downside of the demarcation strip, and the port of the first flow is located at institute State the back side of fixed scroll and be oppositely arranged with the second opening of the second flow channel, the connector is in linear, the connector First end be provided with first connecting portion for the connector to be connected with the fixed scroll, the second end of the connector It is provided with the second connecting portion for the connector to be connected with the demarcation strip.

Further, it is equipped with the pipeline that can fix with case weld and stretch out housing in first opening.

Further, the pipeline forms the passage of sealing with the described first opening interference fit.

Further, the second flow channel has relative the first opening and the second opening, and first opening is located at institute The lateral surface of demarcation strip is stated, positioned at the bottom of the demarcation strip, the second flow channel includes and described first for second opening Opening is located at same cross section and the horizontal interface with first open communication and is located at same vertical cut with the described second opening Face and with the longitudinal interface of second open communication, the horizontal interface connects with the longitudinal interface.

Further, the sealed groove for installing sealing ring is formed with the joint.

Disclosed herein as well is a kind of screw compressor, including the fluid ejection mechanisms described above.

According to fluid ejection mechanisms of the present utility model and screw compressor, with advantages below：

1st, screw compressor high working efficiency, delivery temperature is relatively low, and reliability is higher；

The 2nd, fluid ejection mechanisms are set between demarcation strip and fixed scroll, and simple structure is assembled easy, solved in compression The problem that flow jet channels are complicated and assembling is difficult is opened up on machine.

Brief description of the drawings

The accompanying drawing for constituting the part of the application is used for providing being further understood to of the present utility model, of the present utility model Schematic description and description is used to explain the utility model, does not constitute to improper restriction of the present utility model.In accompanying drawing In：

Fig. 1 is the screw compressor complete machine structure schematic diagram of embodiment one during the utility model is created；

Fig. 2 is the screw compressor close-up schematic view of embodiment one during the utility model is created；

Fig. 3 is the partition plate structure schematic diagram of embodiment one during the utility model is created；

Fig. 4 is the conduit component structural representation of embodiment one during the utility model is created；

Fig. 5 is the screw compressor close-up schematic view of embodiment two during the utility model is created；

Fig. 6 is the screw compressor close-up schematic view of embodiment three during the utility model is created；

Fig. 7 is the attachment structure schematic diagram of embodiment three during the utility model is created；

Fig. 8 is the screw compressor close-up schematic view of example IV during the utility model is created；

Fig. 9 is the screw compressor close-up schematic view of embodiment five during the utility model is created；

Figure 10 is the attachment structure schematic diagram of embodiment five during the utility model is created；

Description of reference numerals：1st, closure；2nd, fixed scroll；2a, fluid injection orifice；2b, injection channel；2c, first flow； 2d, the back side；2f, jet exit；2h, lateral wall；3rd, movable orbiting scroll；4th, housing；4a, hole；5th, upper bracket；6th, motor；7th, motor is solid Determine frame；8th, lower support ring；9th, lower cover；10th, lower carriage；11st, radome fairing；12nd, bent axle；13rd, rotor；14th, main balance weight；15th, on Support supporting plate；16th, eccentric bushing；17th, cross slip-ring；18th, bindiny mechanism；19th, blast pipe；20th, check-valves；21st, upper lid；22、 Demarcation strip；221st, second flow channel；222nd, the first opening；223rd, the second opening；22a, horizontal interface；22b, longitudinal interface；22c、 Boss；22d, medial surface；22f, lateral surface；22g, downside；23rd, fixed plate；231st, through hole；24th, connector；241st, first End；242nd, the second end；243rd, first connecting portion；244th, second connecting portion；25th, joint；251st, sealed groove；26th, sealing ring； 26a, sealing ring；26b, sealing ring；27th, pipeline；28th, annular groove.

Specific embodiment

Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

According to fluid ejection mechanisms of the present utility model, including：Fixed scroll 2, first flow is formed with the fixed scroll 2 2c；Demarcation strip 22, is formed with second flow channel 221 on the demarcation strip 22；Bindiny mechanism 18, the bindiny mechanism 18 is arranged on institute State between fixed scroll 2 and the demarcation strip 22, the bindiny mechanism 18 is used for the first flow 2c and the second flow channel 221 connections.

First flow 2c, second flow channel 221 form the injection channel of sealing by bindiny mechanism 18.Due in compressor Bindiny mechanism 18 is set between fixed scroll 2 and demarcation strip 22, and demarcation strip 22 also serves as being formed a part for fluid injection runner.Should Flow jet channels are warm to reduce exhaust to the steam that relative low temperature is sprayed into the compression chamber of fixed scroll 2 when evaporating temperature is too low Degree, and the low-temperature heating ability of compressor is enhanced, to improve compressor efficiency.When evaporating temperature is too low and condensation temperature is higher When to the liquid that relative low temperature is sprayed into fixed scroll compression chamber, to reduce the delivery temperature of compressor, improve the reliability of compressor Property.

Additionally, bindiny mechanism 18 can be fixed after movable orbiting scroll 3 and the positioning aligning of fixed scroll 2, therefore it is easy to assembling.

Further describe below in conjunction with the accompanying drawings：

As shown in figure 1, screw compressor mainly includes motor 6, upper bracket 5, lower carriage 10, fixed scroll 2, movable orbiting scroll 3, ten Word slip ring 17, bent axle 12.Motor 6 is fixed on housing 4 by motor fixing frame 7, and upper bracket 5 is stopped by interference fit and axially Push away and be fixed on housing 4.Movable orbiting scroll 3 and the carrier phase shift 180 degree of fixed scroll 2 are opposed on upper bracket 5, and movable orbiting scroll 3 exists Moved under the driving of bent axle 12, engage that to form a series of mutually isolated and volume consecutive variations crescent closed with fixed scroll 2 Cavity volume.Closure 1 is arranged on the back side 2d of fixed scroll 2, and closure 1 can axially float and demarcation strip 22 in compressor operation Form the exhaust passage of sealing.It is to be noted that fixed scroll 2 has axial elasticity, you can axially float, but worked Cheng Zhong, axial gas forces are closely pressed in movable orbiting scroll 3 in the middle pressure chamber that fixed scroll 2 is formed by the back side 2d of closure 1 and fixed scroll 2 On.Demarcation strip 22 and upper lid 21 are fixed by welding on housing 4, and demarcation strip 22 and upper lid 21 form high pressure gas chamber.

During compressor operation, motor 6 drives bent axle 12 to rotate, and the crank section of bent axle 12 installs the bias with radial compliance Set 16, eccentric bushing 16 drive movable orbiting scroll 3 move, cross slip-ring 17 anti-rotation limitation under, movable orbiting scroll 3 around crankshaft center with Fixed radius does translational motion.The refrigerant entered from outside compressor is inhaled into the crescent that movable orbiting scroll 3 and fixed scroll 2 are formed In suction muffler, entered in the high pressure chest that upper lid 21 is formed with demarcation strip 22 by the steam vent of fixed scroll 2 after overcompression, then through row Tracheae 19 is discharged.

As shown in Fig. 2 in embodiment of the present utility model, be provided with fixed scroll 2 fluid injection orifice 2a and with spray The injection channel 2b that perforation 2a is connected.Fluid injection orifice 2a is extended longitudinally.Injection channel 2b is substantially extended transversely.And One end of injection channel 2b is located on the lateral wall 2h of the fixed scroll 2.Fluid injection orifice 2a and injection channel 2b can be formed First flow 2c.The outlet (i.e. the outlet of injection channel 2b) of first flow 2c can be connected with bindiny mechanism 18.

In the present embodiment, bindiny mechanism 18 includes fixed plate 23, connector 24, joint 25.As shown in figure 4, fixed Plate 23 is provided with two through holes 231, and fixed plate 23 is fixed on the lateral wall 2h of fixed scroll 2 by through hole 231 and bolt connection, One end of connector 24 is fixed by welding in fixed plate 23, and the other end of connector 24 is also by welding and the phase of joint 25 Connection.The connector 24 have the relative end 242 of first end 241 and second, the first end 241 of the connector 24 with it is described First flow 2c is connected, and the second end 242 of the connector 24 connects with the second opening 223 of the second flow channel 221.At this In implementation method, connector 24 can be L-shaped pipeline.The port of joint 25 is cylindrical to be provided with sealed groove 251, sealed groove Sealing ring 26 can be housed, then during joint 25, sealing ring 26 may be inserted into the second flow channel 221 of demarcation strip 22 in 251.

As shown in figure 3, second flow channel 221 has the first opening 222 and the second opening 223.First opening 222 is used for Second flow channel 221 is set to be in communication with the outside.Second opening 223 is used to make bindiny mechanism 18 be connected with second flow channel 221 by it.

First opening 222 is located at the lateral surface 22f of the demarcation strip 22.Second opening 223 is located at the demarcation strip 22 Downside 22g.The horizontal interface 22a is located at same cross section and is connected with the described first opening 222.The longitudinal interface 22b is located at same longitudinal section and is connected with the described second opening 223 with the described second opening 223.

In one preferred embodiment, it is considered to which demarcation strip of the prior art 22 is relatively thin, for the ease of in demarcation strip Second flow channel 221 is formed on 22, demarcation strip 22 can have the boss 22c extended towards the fixed scroll 2, the second flow channel 221 are formed on the boss 22c.

Pipeline 27 can form the passage of sealing with the horizontal interface 22a interference fits on demarcation strip 22, and pipeline 27 passes through It is weldingly fixed on housing 4.When pipeline 27 is soldered on housing 4, at least part of pipeline 27 can stretch out housing 4, so as to It is connected in other equipment.

In compressor assembling process, the fixed plate 23 shown in Fig. 4, connector 24,25 3 parts of joint are led to first Cross and be welded and fixed together, sealing ring 26 is enclosed within the sealed groove 251 of joint 25, fixed plate 23 is consolidated by bolt then It is scheduled on the lateral wall 2h of fixed scroll 2, after movable orbiting scroll 3, the pump housing aligning of fixed scroll 2 are fastened, then the longitudinal direction of demarcation strip 22 is connect Mouth 22b alignment joints 25 are loaded onto, in the horizontal interface 22a pipeline 27 by the hole 4a insertion demarcation strips 22 on housing 4, then Pipeline 27 is welded on housing 4 again.

When screw compressor works, from the outside fluid drawn by the interconnection 22a on pipeline 27, demarcation strip 22 and Vertical passage 22b, then compression is sprayed into through the and of fixed scroll 2 by the injection channel 2b in connector 24, fixed scroll 2 and jet 2a In the compression chamber that movable orbiting scroll 3 is formed.

As shown in figure 5, in embodiment of the present utility model two, first flow 2c includes the fluid injection orifice being sequentially communicated 2a, injection channel 2b and jet exit 2f.Fluid injection orifice 2a substantially vertically extends.Injection channel 2b substantially along Horizontal direction extends.Process for convenience, drill bit can be penetrated from the lateral wall 2h of fixed scroll 2, and will be bored by plug The hole that head gets out is blocked in one end of the lateral wall 2h near fixed scroll 2, so as to form injection channel 2b.The fluid injection orifice 2a is connected with the injection channel 2b away from one end of the lateral wall 2h of the fixed scroll 2.The outlet of jet exit 2f upward, and Substantially vertically extend.

In the present embodiment, second flow channel 221 is substantially horizontally extending.First opening 222 is located at the separation The lateral surface 22f of plate 22.Second opening 223 is located at the medial surface 22d of the demarcation strip 22.For the ease of processing, the first opening 222 and second opening 223 can be oppositely arranged.

In the present embodiment, the bindiny mechanism 18 between demarcation strip 22 and fixed scroll 2 and the embodiment one illustrated in 2 It is substantially the same.Shown in reference picture 4, bindiny mechanism 18 includes connector 24, fixed plate 23 and joint 25.The company of being arranged on of joint 25 The first end 241 of fitting 24, and can insert the jet exit 2f of first flow 2c.Fixed plate 23 is arranged on the of connector 24 Two ends 242, and be connected with the medial surface 22d of demarcation strip 22 by screw.In the present embodiment, connector 24 can be in The pipeline of L-shaped.

In the assembling of embodiment two, the fixed plate 23 shown in Fig. 4 is fixed by screws in the inner side of demarcation strip 22 first On the 22d of face, the longitudinal interface 2c that joint 25 is directed at fixed scroll 2 is loaded when demarcation strip 22 is installed then.

As shown in fig. 6, in embodiment of the present utility model three, second opening 223 is located at the demarcation strip 22 Downside 22g, the port (jet exit 2f) of the first flow 2c is open upward and with the second of the second flow channel 221 223 are oppositely arranged, and the joint 25 is substantially in linear.

In the present embodiment, between demarcation strip 22 and fixed scroll 2 bindiny mechanism 18 is as shown in fig. 7, the connection member Including fixed plate 23, joint 25, sealing ring 26, sealed groove 251 is provided with joint 25.Fixed plate 23 is fixed on the back of the body of fixed scroll Face 2d, the longitudinal interface 22a of joint 25, sealing ring 26 and demarcation strip forms sealing passage.

The injection structure assembly method of the embodiment is close with embodiment, and this is no longer discussed in detail.

As shown in figure 8, in example IV of the present utility model, second opening 223 is located at the demarcation strip 22 Downside 22g, the port (jet exit 2f) of the first flow 2c is open upward and with the second of the second flow channel 221 223 are oppositely arranged, and the joint 25 is substantially in linear.The implementation of bindiny mechanism 18 and Fig. 6 between demarcation strip 22 and fixed scroll 2 Example three it is identical, simply installation method is different.Fixed plate 23 is bolted on the downside 22g for being fixed on demarcation strip 22, The interface 2c of joint 25, sealing ring 26 and fixed scroll 2 forms sealing passage.

As shown in figure 9, in embodiment of the present utility model five, second opening 223 is located at the demarcation strip 22 Downside 22g, the port (jet exit 2f) of the first flow 2c is open upward and with the second of the second flow channel 221 223 are oppositely arranged, and the connector 24 is substantially in linear.

As shown in Figure 10, the first end 241 of the connector 24 is set connector 24 between demarcation strip 22 and fixed scroll 2 There are the first connecting portion 243 for the connector 24 to be connected with the fixed scroll 2, the second end 242 of the connector 24 It is provided with the second connecting portion 244 for the connector 24 to be connected with the demarcation strip 22.First connecting portion 243 and second Connecting portion 244 has the annular groove 28 for installing sealing ring 26.It is connector 24, sealing ring 26a, sealing ring 26b, quiet The jet exit 2f of whirlpool disk 2, the interface 22a of demarcation strip 22 form the passage of sealing.In assembling process, first will be with sealing Enclose in the jet exit 2f of any one end of connector 28 insertion fixed scroll 2 of 26a, 26b, then the horizontal interface of fixed plate 22 The other end of 22a alignment connectors 28 loads.

Disclosed herein as well is a kind of screw compressor, it includes fluid ejection mechanisms described above.

Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.

Claims (18)

1. a kind of fluid ejection mechanisms, it is characterised in that including：

Fixed scroll (2), first flow (2c) is formed with the fixed scroll (2)；

Demarcation strip (22), second flow channel (221) is formed with the demarcation strip (22)；

Bindiny mechanism (18), the bindiny mechanism (18) is arranged between the fixed scroll (2) and the demarcation strip (22), described Bindiny mechanism (18) is for the first flow (2c) to be connected with the second flow channel (221).

2. fluid ejection mechanisms according to claim 1, it is characterised in that the demarcation strip (22) is with towards described quiet The boss (22c) that whirlpool disk (2) extends, the second flow channel (221) is formed on the boss (22c).

3. fluid ejection mechanisms according to claim 1, it is characterised in that the second flow channel (221) is opened with first Mouth (222) and the second opening (223), the lateral surface (22f) of first opening (222) positioned at the demarcation strip (22).

4. fluid ejection mechanisms according to claim 3, it is characterised in that the bindiny mechanism (18) is including connector (24), the connector (24) is with relative first end (241) and the second end (242), the first end of the connector (24) (241) connected with the first flow (2c), the second end (242) and the second flow channel (221) of the connector (24) Second opening (223) connection.

5. fluid ejection mechanisms according to claim 4, it is characterised in that the bindiny mechanism (18) is including fixed plate (23), the fixed plate (23) is arranged on the first end (241) of the connector (24), and the fixed plate (23) is arranged on described In fixed scroll (2).

6. fluid ejection mechanisms according to claim 5, it is characterised in that second end (242) of the connector (24) It is provided with the joint (25) for the connector (24) to be connected with the demarcation strip (22).

7. fluid ejection mechanisms according to claim 5, it is characterised in that second opening (223) is positioned at described point The downside (22g) of dividing plate (22), the port of the first flow (2c) is located at the lateral wall (2h) of the fixed scroll (2), institute State connector (24) L-shaped.

8. fluid ejection mechanisms according to claim 4, it is characterised in that second opening (223) is positioned at described point Open upward and with the second of the second flow channel (221) downside (22g) of dividing plate (22), the port of the first flow (2c) Mouth (223) is oppositely arranged, and the connector (24) is in linear.

9. fluid ejection mechanisms according to claim 4, it is characterised in that the bindiny mechanism (18) is including fixed plate (23), the fixed plate (23) is arranged on second end (242) of the connector (24), and the fixed plate (23) is arranged on described On demarcation strip (22).

10. fluid ejection mechanisms according to claim 9, it is characterised in that the first end (241) of the connector (24) It is provided with the joint (25) for the connector (24) to be connected with the fixed scroll (2).

11. fluid ejection mechanisms according to claim 9, it is characterised in that second opening (223) is positioned at described point The medial surface (22d) of dividing plate (22), the port of the first flow (2c) is located at the back side (2d) of the fixed scroll (2), described Connector (24) is L-shaped.

12. fluid ejection mechanisms according to claim 9, it is characterised in that second opening (223) is positioned at described point The downside (22g) of dividing plate (22), the port of the first flow (2c) be located at the back side (2d) of the fixed scroll (2) and with institute The second opening (223) for stating second flow channel (221) is oppositely arranged, and the connector (24) is in linear.

13. fluid ejection mechanisms according to claim 4, it is characterised in that second opening (223) is positioned at described point The downside (22g) of dividing plate (22), the port of the first flow (2c) be located at the back side (2d) of the fixed scroll (2) and with institute The second opening (223) for stating second flow channel (221) is oppositely arranged, the connector (24) in linear, the connector (24) First end (241) is provided with the first connecting portion (243) for the connector (24) to be connected with the fixed scroll (2), institute State connector (24) the second end (242) be provided with for the connector (24) is connected with the demarcation strip (22) second Connecting portion (244).

14. fluid ejection mechanisms according to claim 3, it is characterised in that be equipped with energy in first opening (222) The pipeline (27) of housing (4) is welded and fixed and stretched out with housing (4).

15. fluid ejection mechanisms according to claim 14, it is characterised in that the pipeline (27) and the described first opening (222) interference fit forms the passage of sealing.

16. fluid ejection mechanisms according to claim 1, it is characterised in that the second flow channel (221) is with relative First opening (222) and the second opening (223), lateral surface of first opening (222) positioned at the demarcation strip (22) (22f), positioned at the downside (22g) of the demarcation strip (22), the second flow channel (221) includes for second opening (223) With the described first opening (222) positioned at same cross section and with the described first opening (222) horizontal interface (22a) for connecting and with Second opening (223) positioned at same longitudinal section and with described second opening (223) longitudinal interface (22b) for connecting, it is described Horizontal interface (22a) is connected with the longitudinal interface (22b).

17. fluid ejection mechanisms according to claim 6 or 10, it is characterised in that be formed with use on the joint (25) In the sealed groove (251) for installing sealing ring.

A kind of 18. screw compressors, it is characterised in that the fluid ejection mechanisms including such as any one of claim 1 to 17.