CN108386364A - Air intake duct group and its installation method and compressor - Google Patents
Air intake duct group and its installation method and compressor Download PDFInfo
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- CN108386364A CN108386364A CN201810273863.4A CN201810273863A CN108386364A CN 108386364 A CN108386364 A CN 108386364A CN 201810273863 A CN201810273863 A CN 201810273863A CN 108386364 A CN108386364 A CN 108386364A
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- air intake
- intake duct
- exhaust pipe
- duct group
- connecting tube
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The present invention provides a kind of air intake duct group and its installation methods and compressor, wherein air intake duct group is used for the shell and liquid storage device of connect compressor, offers connecting hole on shell, air intake duct group includes：Conduit is fixedly arranged on shell, and conduit forms enlarged portion along the expansion axially outward of connecting hole；Exhaust pipe is sheathed in conduit, and one end of exhaust pipe is stretched by connecting hole in shell；Instlated tubular is set in exhaust pipe, and the inner wall of instlated tubular and exhaust pipe connects；The inner segment of connecting tube, connecting tube stretches into the enlarged portion of conduit and inner segment is fixedly connected with enlarged portion, and the outer segment inner wall of connecting tube is fixedly connected with the outer wall of exhaust pipe, to be sheathed on outside exhaust pipe.Technical solution through the invention is fixedly connected using conduit with connecting tube, and enough fault tolerant workspaces are provided for the issuable deviation of axially bored line of the suction hole on the pipe axis and cylinder of exhaust pipe, reduces the required precision of the two, adaptability higher.
Description
Technical field
The present invention relates to compression device and refrigeration technology fields, in particular to a kind of air intake duct group, a kind of air intake duct
Group installation method and a kind of compressor.
Background technology
Compressor is a kind of driven fluid machinery that low-pressure gas is promoted to high pressure gas, is the heart of refrigeration system
It is dirty.Compressor generally comprises main casing and liquid storage device, is connected by air intake duct group between liquid storage device and main casing, so that liquid storage
Refrigerant in device, which can flow into the cylinder installed in main casing, to be compressed, and compressed high-temperature high-pressure refrigerant gas passes through
Exhaust pipe is discharged, to realize the refrigeration cycle of compression → condensation (heat release) → expansion → evaporation (heat absorption).
Studies have shown that suction superheat is to influence one of the principal element of compressor efficiency.It is existing special in order to avoid the problem
A kind of compressor assembly is disclosed in sharp (application publication number CN105221431A), in order to eliminate suction superheat problem,
Instlated tubular is added in air intake duct group, for obstructing the conduction of the heat of main casing to the gaseous coolant of air intake duct group internal flow.
However, this makes the subregion of air intake duct group be formed as four layers of tube body (drain of instlated tubular, intermediate tube, conduit and liquid storage device
Pipe) nested structure, it is complicated, it is unfavorable for manufacturing.Also, be easy to occur when pipe welding in air intake duct group due to
Leakage caused by failure welding.
Therefore, on this basis, existing solution is to use intermediate instlated tubular, i.e., by instlated tubular and centre effective one
There is root the tube body of heat insulation to substitute, to simplify the structure of air intake duct group.It is heat-insulated due to being equipped with inside liquid storage device exhaust pipe
Pipe, instlated tubular is usually the high molecular material of low melting point, will if be directly welded to connect with conduit to liquid storage device exhaust pipe
Tail Pipe Temperature may be caused excessively high, melt and fail so as to cause instlated tubular, therefore to use the welding method of input low in calories
Or it avoids directly acting on heat into the exhaust pipe for being equipped with instlated tubular.
However, during practical set, the air-breathing of the pipe axis height and the cylinder in main casing of the conduit on main casing
Be difficult to avoid that between the axially bored line height in hole there are difference in height, then the axially bored line of the suction hole of the pipe axis and cylinder of drain pipe
Between necessarily lead to deviation, it is desirable that structure has compared with strong fault tolerance ability.And the presence in uneven fault-tolerant gap, lead to Laser Welding, argon
The welding method that the low-heat such as arc-welding influence, which can not obtain, good connects effect.
Therefore, welding method, which is also required to meet, can also obtain qualified weld seam when workpiece joint gap is uneven.
To sum up, existing air intake duct group structure is further improved.
Invention content
The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.
For this purpose, it is an object of the present invention to provide a kind of air intake duct groups.
It is another object of the present invention to provide a kind of compressors.
Third object of the present invention is to provide a kind of installation method of air intake duct group.
To achieve the above object, the technical solution of first aspect present invention provides a kind of air intake duct group, for connecting pressure
The shell and liquid storage device of contracting machine offer connecting hole on shell, and air intake duct group includes：Conduit is fixedly arranged on shell, and conduit is along even
The expansion axially outward for connecing hole forms enlarged portion；Exhaust pipe is sheathed in conduit, and one end of exhaust pipe is stretched by connecting hole
In shell；Instlated tubular is set in exhaust pipe, and the inner wall of instlated tubular and exhaust pipe connects；The inner segment of connecting tube, connecting tube stretches into
The enlarged portion and inner segment of conduit are fixedly connected with enlarged portion, and the outer segment inner wall of connecting tube is fixedly connected with the outer wall of exhaust pipe, with
It is sheathed on outside exhaust pipe.
In the technical scheme, it is used for gaseous state of the trap heat to air intake duct group internal flow due to being arranged in exhaust pipe
The instlated tubular of the conduction of refrigerant stretches into the connecting hole on shell by the connecting tube being fixedly connected on exhaust pipe in exhaust pipe
Afterwards, be fixedly connected with the conduit for being fixedly connected on connecting hole outer end face using connecting tube, with improve the shell of compressor with
The stability of liquid storage device connection；It is fixedly connected again after connecting tube is stretched into enlarged portion, with the fixation of connecting tube and conduit
Junction is as far as possible far from instlated tubular, and connecting tube has protective effect to the instlated tubular inside exhaust pipe, avoids in fixation
Instlated tubular is impacted when connection and the heat-blocking action of instlated tubular is caused to fail；In addition, using matched connecting tube and leading
Pipe provides foot to fix exhaust pipe, to ensure that the pipe axis of exhaust pipe is overlapped with the axially bored line of the suction hole of compressor inside cylinder
Enough fault tolerant workspaces reduce the required precision of the two, adaptability higher；Since instlated tubular being arranged in exhaust pipe, can effectively hinder
Every conduction of the heat of shell and cylinder to the gaseous coolant of air intake duct group internal flow, there is good heat-blocking action.
In addition, the air intake duct group in above-mentioned technical proposal provided by the invention can also have following additional technical feature：
In the above-mentioned technical solutions, it is preferable that the inner segment of connecting tube and the other end of conduit are axially fixed connection, connection
Pipe further includes：Expansion segment is connected between outer segment and inner segment, and there are first between the inner wall of expansion segment and the outer wall of exhaust pipe
Gap.
In the technical scheme, air heat-insulation layer, the company of preventing are formed using the first gap between expansion segment and exhaust pipe
It takes over the heat generated when being fixedly connected with conduit to conduct to instlated tubular, avoids instlated tubular by thermal failure.Especially
When using induction brazing, induction welding heating is only to the expansion segment and heating conduit of outer layer, and exhaust pipe is due to the air gap
Presence, magnetic resistance is big, is hardly heated, ensure that instlated tubular safety.
In any of the above-described technical solution, it is preferable that expansion segment is tapered or tubaeform.
In the technical scheme, be formed as taper or tubaeform expansion segment, it both can be between connecting tube and exhaust pipe
Gap is formed, and exhaust pipe can be fixed in tail end, has the advantages of simple structure and easy realization, reduces the difficulty of processing of connecting tube
And production cost.
In any of the above-described technical solution, it is preferable that the first gap is greater than or equal to 2.5mm.
In any of the above-described technical solution, it is preferable that along the axial direction of ecto-entad, at least partly outer segment of connecting tube
Inside the outer end of connecting tube is inward-facing without leave is gradually reduced, and air intake duct group further includes：First weld part is formed in the outer segment of connecting tube
Between inner wall and exhaust tube wall.
In the technical scheme, the structure design being gradually reduced by internal diameter in connecting tube, to meet one end and exhaust pipe
Outer diameter moves closer to, and the other end forms welding space in order to weld operation with exhaust tube wall.
In any of the above-described technical solution, it is preferable that conduit includes：Linkage section, one end of linkage section and the side of connecting hole
Wall is fixedly connected, and the other end of linkage section is connected with enlarged portion；Enlarged portion includes：Expander section, by linkage section along the diameter of connecting hole
It to be formed to expanding outwardly；Straight pipe, by expander section being extending axially outward form along connecting hole.
In the technical scheme, supravasal straight pipe is the part being fixedly connected with connecting tube, straight pipe and connecting tube
Inner segment be straight tube, convenient for being welded to straight pipe and inner segment, expander section makes the part as far as possible far from instlated tubular,
The heat generated when being welded to connecting tube and conduit is not transferred on instlated tubular, there is protection well to make instlated tubular
With avoiding instlated tubular by thermal failure.
Further, since the aperture size of the connecting hole of shell has limitation, therefore the diameter of the linkage section of conduit cannot be too
Greatly, and then inner segment diameter is also limited, to which expander Duan Weiyu inner segments are coordinated so that there are corresponding gaps convenient for fault-tolerant.
In any of the above-described technical solution, it is preferable that further include：Second weld part is formed in inner segment outer wall and straight pipe
Between inner wall.
In the technical scheme, the second welding position is between the inner segment outer wall and straight pipe inner wall of connecting tube, and connects
There are the first gap between pipe and exhaust pipe, so that the second weld part is far from instlated tubular, when being welded to the second weld part
The heat of generation transfers heat to exhaust pipe, and magnetic induction heating when sensing heating is also reduced, and is had to instlated tubular good
Protective effect avoids instlated tubular by thermal failure.
In any of the above-described technical solution, it is preferable that there are the second gap between inner segment outer wall and straight pipe inner wall, second
Gap is less than or equal to 0.8mm.
In the technical scheme, by be formed between the inner segment outer wall of connecting tube and the straight pipe inner wall of conduit second
Gap, when ensureing that cylinder is not coaxial with guide hole, exhaust pipe can be inserted into cylinder-bore normally through conduit, around there is adjustment space,
Wherein, the selectable value in the second gap is 0.5mm, 1mm or 1.2mm.
In any of the above-described technical solution, it is preferable that the first gap is greater than or equal to 2.5mm.
In the technical scheme, by the way that the first gap to be limited in above range, ensureing the first gap to instlated tubular
Heat insulation under the premise of, reduce air intake duct group overall volume.
In any of the above-described technical solution, it is preferable that stretch into the length of the part inner segment of straight pipe less than its remaining part of inner segment
The length divided.
In the technical scheme, under the premise of ensureing that inner segment coordinates welding segment length enough with straight pipe, interior segment length is most
Amount reduces, under total length certain condition, outer segment maximum length so that heat is transferred to the distance of exhaust pipe as possible along outer segment
It is long, ensure that Tail Pipe Temperature is in compared with low state
In any of the above-described technical solution, it is preferable that inner segment stretches into partial-length 5mm~10mm of straight pipe.
In the technical scheme, inner segment is stretched into the length in straight pipe to limit within the above range, is reduced as far as possible
The integral thickness of air intake duct group, makes the volume smaller of air intake duct group, simplifies structure, reduce installation difficulty, selectable value is
6mm、7mm、8mm。
In any of the above-described technical solution, it is preferable that instlated tubular and exhaust pipe are interference fitted or Nian Jie to realize sealing company
It connects.
In the technical scheme, by the interference fit between instlated tubular and exhaust pipe, so that the outer wall of instlated tubular and row
Gap is not present between the inner wall of tracheae, ensures sealing shape between the two, prevents the heat of shell to air intake duct group inside stream
The conduction of dynamic gaseous coolant the phenomenon that avoid suction superheat, ensures the efficiency of compressor；Furthermore it is possible to instlated tubular
It is limited, avoids that play occurs in its operational process.
In any of the above-described technical solution, it is preferable that the thermal coefficient of instlated tubular is less than or equal to 5W/ (m ﹒ K), and connects
The material of pipe, conduit and exhaust pipe is steel or copper.
In the technical scheme, using the instlated tubular of above-mentioned thermal coefficient, the heat of shell can be prevented into air intake duct group
The conduction of the gaseous coolant of portion's flowing, the phenomenon that avoid suction superheat, ensures the efficiency of compressor.
The technical solution of second aspect of the present invention provides a kind of compressor, including：Shell and liquid storage device；Wherein, shell
It is interior to be equipped with compression unit, compression unit and the air intake duct group that any technical solution provides in liquid storage device through the invention first aspect
It is tightly connected.
In the technical scheme, compressor has any technique effect of the air intake duct group of first aspect present invention, herein
It repeats no more.
In addition, the compressor in above-mentioned technical proposal provided by the invention can also have following additional technical feature：
In the above-mentioned technical solutions, it is preferable that the exhaust pipe of air intake duct group stretches into one end in shell and compression unit mistake
It is full of cooperation.
In the technical scheme, by the interference fit between compression unit and exhaust pipe, ensure air intake duct group and compression
Leakproofness between unit prevents internal connection.
The technical solution of third aspect present invention provides a kind of air intake duct group installation method, is used for second aspect of the present invention
In the compressor that provides of any technical solution, air intake duct group installation method includes：Connect the exhaust pipe and air-breathing of air intake duct group
The outer segment of the connecting tube of pipe group；The instlated tubular of air intake duct group is sheathed in exhaust pipe, and shape between air intake duct group and exhaust pipe
At sealing；Exhaust pipe is stretched into the connecting hole on the shell of compressor, so that the air-breathing of the compression unit of exhaust pipe and compressor
Hole is connected；The outer segment of circumferential sealing connecting tube and the enlarged portion of conduit.
In this embodiment, the air intake duct group assembled using above-mentioned installation method, good airproof performance are simple to operate.
In addition, the air intake duct group installation method in above-mentioned technical proposal provided by the invention can also have additional skill as follows
Art feature：
In the above-mentioned technical solutions, it is preferable that the exhaust pipe of connection air intake duct group and the connecting tube of air intake duct group it is outer
Section specifically includes：By furnace brazing to realize the connection of the outer segment of exhaust pipe and connecting tube.
In the above-mentioned technical solutions, it is preferable that the outer segment of circumferential sealing connecting tube and the enlarged portion of conduit specifically include：
The circumferential sealing of the outer segment of connecting tube and the enlarged portion of conduit is realized by being brazed.
By above structure scheme, the welding method of the high heat inputs such as induction brazing or gas brazing may be used to even
The enlarged portion sealing welding of the outer segment and conduit taken over, without causing heat-insulated tube failure.And method for welding mature and reliable, technique
Simply, cost is relatively low, is relatively had a clear superiority using low_input_powers schemes such as Laser Weldings.
The additional aspect and advantage of the present invention will become apparent in following description section, or practice through the invention
Recognize.
Description of the drawings
Fig. 1 shows the structural schematic diagram of air intake duct group involved according to embodiments of the present invention；
Fig. 2 shows the structural schematic diagrams of involved compressor according to embodiments of the present invention；
Fig. 3 shows the schematic flow diagram of air intake duct group installation method involved according to embodiments of the present invention；
Correspondence in Fig. 1 to Fig. 3 between reference numeral and component names is：
10 shells, 102 connecting holes, 20 liquid storage devices, 30 conduits, 302 linkage sections, 304 expander sections, 306 straight pipes, 40 exhausts
Pipe, 50 instlated tubulars, 60 connecting tubes, 602 inner segments, 604 outer segments, 606 expansion segments, 608 first gaps, 70 first weld parts, 80 the
Two weld parts, 90 second gaps.
Specific implementation mode
To better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real
Mode is applied the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be implemented different from other modes described here using other, therefore, protection scope of the present invention is not limited to following public affairs
The limitation for the specific embodiment opened.
With reference to Fig. 1 to Fig. 3 to air intake duct group according to an embodiment of the invention and its installation method and compressor into
Row illustrates.
As depicted in figs. 1 and 2, air intake duct group according to an embodiment of the invention is used for the shell of connect compressor
10 with liquid storage device 20, offer connecting hole 102 on shell 10, air intake duct group includes：Conduit 30 is fixedly arranged on shell 10, conduit
30 form enlarged portion along the expansion axially outward of connecting hole 102；Exhaust pipe 40 is sheathed in conduit 30, and the one of exhaust pipe 40
End is stretched by connecting hole 102 in shell 10；Instlated tubular 50 is set in exhaust pipe 40, and instlated tubular 50 and exhaust pipe 40 is interior
Wall connects；The inner segment 602 of connecting tube 60, connecting tube 60 stretches into the enlarged portion of conduit 30 and inner segment 602 is fixedly connected with enlarged portion,
604 inner wall of outer segment of connecting tube 60 is fixedly connected with the outer wall of exhaust pipe 40, to be sheathed on outside exhaust pipe 40.
In this embodiment, it is used for gaseous state of the trap heat to air intake duct group internal flow due to being arranged in exhaust pipe 40
The instlated tubular 50 of the conduction of refrigerant stretches into shell 10 by the connecting tube 60 being fixedly connected on exhaust pipe 40 in exhaust pipe 40
On connecting hole 102 after, be fixedly connected with the conduit 30 for being fixedly connected on 102 outer end face of connecting hole using connecting tube 60,
The stability that shell 10 to improve compressor is connect with liquid storage device 20.
Suction superheat is as one of the principal element for influencing compressor efficiency, in order to avoid the problem, in exhaust pipe 40
Instlated tubular 50 is set, can effectively conduction of the trap heat to the gaseous coolant of air intake duct group internal flow, instlated tubular 50 be usually
The high molecular material of low melting point, if be directly welded to connect with conduit 30 to 20 exhaust pipe 40 of liquid storage device, it would be possible to cause
40 temperature of exhaust pipe is excessively high, melts and fails so as to cause instlated tubular 50.It is fixed again after connecting tube 60 is stretched into enlarged portion
Connection, with the fixed connection place of connecting tube 60 and conduit 30 as far as possible far from instlated tubular 50, and connecting tube 60 is to exhaust pipe 40
Internal instlated tubular 50 has protective effect, avoids impacting instlated tubular 50 when being fixedly connected and leads to instlated tubular 50
Heat-blocking action fails.
Due to the axially bored line height of the pipe axis height and the suction hole of the cylinder in shell 10 of the conduit 30 on shell 10
Between be difficult to avoid that there are differences in height, then necessarily lead between the axially bored line of the suction hole of the pipe axis and cylinder of exhaust pipe 40
Deviation needs the structure of air intake duct group to have compared with strong fault tolerance ability.For this purpose, utilizing the outer end face conduit 30 positioned at connecting hole 102
It is fixedly connected with connecting tube 60 after exhaust pipe 40 stretches into shell 10, the pipe axis to ensure exhaust pipe 40 and the air-breathing on cylinder
The axially bored line coincidence in hole provides enough fault tolerant workspaces, reduces the required precision of the two, adaptability higher.
In the above embodiment, it is preferable that as shown in Figure 1, the other end of the inner segment 602 of connecting tube 60 and conduit 30 is along axis
To being fixedly connected, connecting tube 60 further includes：Expansion segment 606 is connected between outer segment 604 and inner segment 602, and expansion segment 606
There are the first gaps 608 between inner wall and the outer wall of exhaust pipe 40.
In this embodiment, due to being equipped with instlated tubular 50 inside exhaust pipe 40, instlated tubular 50 is usually the height of low melting point
Molecular material such as welds, it would be possible to lead to 40 temperature mistake of exhaust pipe when being fixedly connected to exhaust pipe 40 and conduit 30
Height is melted so as to cause instlated tubular 50 and is failed.To avoid this problem, first between expansion segment 606 and exhaust pipe 40 is utilized
Air heat-insulation layer is formed, prevents the heat that connecting tube 60 is generated with conduit 30 when being fixedly connected from being conducted to instlated tubular 50,
Instlated tubular 50 is avoided by thermal failure.Especially when using induction brazing, induction welding heating is only to the expansion segment 606 of outer layer
And conduit 30 heats, and exhaust pipe 40 is due to the presence of the air gap, magnetic resistance is big, is hardly heated, and ensure that instlated tubular
50 safety.
In the present embodiment, expansion segment 606 is tapered or tubaeform, both can between connecting tube 60 and exhaust pipe 40 shape
At the first gap 608, and exhaust pipe 40 can be fixed in tail end, be had the advantages of simple structure and easy realization, reduce connecting tube 60
Difficulty of processing and production cost.
Wherein, the first gap 608 is greater than or equal to 2.5mm, selectable value 3mm, 3.5mm, 4mm, by by the first gap
608 are limited in above range, under the premise of ensureing heat insulation of first gap 608 to instlated tubular 50, reduce air intake duct
The overall volume of group.
In any of the above-described embodiment, it is preferable that as shown in Figure 1, along the axial direction of ecto-entad, connecting tube 60 is extremely
The outer end of connecting tube 60 is inward-facing without leave in small part outer segment 604 is gradually reduced, and air intake duct group further includes：First weld part 70,
It is formed between 40 outer wall of 604 inner wall of outer segment and exhaust pipe of connecting tube 60.
In this embodiment, the structure design being gradually reduced by internal diameter in connecting tube 60, to meet one end and exhaust pipe
40 outer diameters move closer to, and the other end forms welding space in order to weld operation with 40 outer wall of exhaust pipe.
In any of the above-described embodiment, it is preferable that as shown in Figure 1, conduit 30 includes：Linkage section 302, linkage section 302
One end is fixedly connected with the side wall of connecting hole 102, and the other end of linkage section 302 is connected with enlarged portion；Enlarged portion includes：Expander section
304, the radial outward dilations by linkage section 302 along connecting hole 102 are formed；Straight pipe 306, by expander section 304 along connecting hole 102
Be extending axially outward form.
In this embodiment, the straight pipe 306 on conduit 30 is the part being fixedly connected with connecting tube 60, straight pipe 306
Inner segment 602 with connecting tube 60 is straight tube, and convenient for being welded to straight pipe 306 and inner segment 602, expander section 304 makes the portion
Divide as far as possible far from instlated tubular 50, the heat generated when being welded to connecting tube 60 and conduit 30 is not transferred to heat-insulated
On pipe 50, there is good protective effect to instlated tubular 50, avoid instlated tubular 50 by thermal failure.
Further, since the aperture size of the connecting hole 102 of shell has limitation, therefore the linkage section 302 of conduit 30 is straight
Diameter cannot be too big, and then 602 diameter of inner segment is also limited, to which expander section 304 is to be coordinated so that there are corresponding with inner segment 602
Gap is convenient for fault-tolerant.
In any of the above-described embodiment, it is preferable that as shown in Figure 1, further including：Second weld part 80, is formed in inner segment 602
Between 306 inner wall of outer wall and straight pipe.
In this embodiment, the second weld part 80 be located at 602 outer wall of inner segment of connecting tube 60 and 306 inner wall of straight pipe it
Between, and there are the first gap 608 between connecting tube 60 and exhaust pipe 40, so that the second weld part 80 is far from instlated tubular 50, right
Second weld part 80 transfers heat to exhaust pipe when being welded, and magnetic induction heating when sensing heating is also reduced, to heat-insulated
Pipe 50 has good protective effect, avoids instlated tubular 50 by thermal failure.
In any of the above-described embodiment, it is preferable that there are the second gaps between 306 inner wall of 602 outer wall of inner segment and straight pipe
90, the second gap 90 is less than or equal to 0.8mm.
In this embodiment, by be formed in 602 outer wall of inner segment of connecting tube 60 and conduit 30 306 inner wall of straight pipe it
Between the second gap 90, ensure cylinder it is not coaxial with guide hole when, exhaust pipe can normally through conduit insertion cylinder-bore, around have
Adjustment space, wherein the selectable value in the second gap 90 is 0.2mm, 0.5mm or 0.7mm.
In any of the above-described embodiment, it is preferable that as shown in Figure 1, stretching into the length of the part inner segment 602 of straight pipe 306
H2 is less than the length H1 of 602 rest part of inner segment.
In this embodiment, under the premise of ensureing that inner segment 602 coordinates welding segment length enough with straight pipe 306, inner segment 602
Length minimizes, under total length certain condition, outer segment maximum length so that heat is transferred to the distance of exhaust pipe along outer segment
It is long as possible, ensure that Tail Pipe Temperature is in compared with low state.
In any of the above-described embodiment, it is preferable that inner segment 602 stretches into partial-length 5mm~10mm of straight pipe 306.
In this embodiment, inner segment 602 length in straight pipe 306 is stretched into limit within the above range, as far as possible
The integral thickness for reducing air intake duct group makes the volume smaller of air intake duct group, simplifies structure, reduces installation difficulty, optional
Value is 6mm, 7mm, 8mm.
In any of the above-described embodiment, it is preferable that instlated tubular 50 and exhaust pipe 40 are interference fitted or Nian Jie are sealed with realizing
Connection.
In this embodiment, by the interference fit between instlated tubular 50 and exhaust pipe 40, so that the outer wall of instlated tubular 50
Gap is not present between the inner wall of exhaust pipe 40, ensures sealing shape between the two, prevents the heat of shell 10 to air intake duct
The conduction of the gaseous coolant of group internal flow, the phenomenon that avoid suction superheat, ensures the efficiency of compressor；Furthermore it is possible to
Instlated tubular is limited, avoids that play occurs in its operational process.
In any of the above-described embodiment, it is preferable that the thermal coefficient of instlated tubular 50 is less than or equal to 5W/ (m ﹒ K), and connects
The material of pipe 60, conduit 30 and exhaust pipe 40 is steel or copper.
In this embodiment, using the instlated tubular 50 of above-mentioned thermal coefficient, the heat of shell 10 can be prevented to air intake duct group
The conduction of the gaseous coolant of internal flow the phenomenon that avoid suction superheat, ensures the efficiency of compressor；Meanwhile copper or
The instlated tubular 50 of steel is not easy the refrigerant corrosion flowed in exhaust pipe 40, improve using effect and ensure instlated tubular 50 every
The thermal efficiency.
As depicted in figs. 1 and 2, compressor according to an embodiment of the invention, including：Including：Shell 10 and liquid storage
Device 20；Wherein, compression unit is equipped in shell 10, any of the above-described embodiment provides compression unit through the invention with liquid storage device 20
Air intake duct group be tightly connected.
In this embodiment, compressor has any technique effect of the air intake duct group of first aspect present invention, herein not
It repeats again.
In the above embodiment, it is preferable that the exhaust pipe 40 of air intake duct group stretches into one end and compression unit in shell 10
Interference fit.
In this embodiment, by the interference fit between compression unit and exhaust pipe 40, ensure air intake duct group and compression
The tightness of leakproofness and connection between unit, so that air intake duct group is not easily to fall off；And the heat of shell 10 can be effectively prevent
The conduction for measuring the gaseous coolant to air intake duct group internal flow the phenomenon that avoid suction superheat, ensures the efficiency of compressor.
As shown in figure 3, air intake duct group installation method according to an embodiment of the invention, is used for any of the above-described embodiment
The compressor of offer, air intake duct group installation method include：
S100 connects the outer segment 604 of the exhaust pipe 40 of air intake duct group and the connecting tube 60 of air intake duct group；
The instlated tubular 50 of air intake duct group is sheathed in exhaust pipe 40 by S200, and shape between air intake duct group and exhaust pipe 40
At sealing；
Exhaust pipe 40 is stretched into the connecting hole 102 on the shell 10 of compressor by S300, so that exhaust pipe 40 and compressor
The suction hole of compression unit is connected；
S400, the outer segment 604 of circumferential sealing connecting tube 60 and the enlarged portion of conduit 30.
In this embodiment, the air intake duct group assembled using above-mentioned installation method, good airproof performance are simple to operate.
In the above embodiment, it is preferable that in the step s 100, connecting the exhaust pipe 40 and air intake duct group of air intake duct group
The outer segment 604 of connecting tube 60 be to be realized by furnace brazing.
In this embodiment, the outer segment 604 of exhaust pipe 40 and connecting tube 60 is carried out using the welding method of furnace brazing
Welding can be very good influence of the control temperature to instlated tubular 50, avoid the heat generated in welding make instlated tubular 50 every
Heat effect is failed.
In the above embodiment, it is preferable that in step S400, the outer segment 604 and conduit of circumferential sealing connecting tube 60
30 enlarged portion is realized by being brazed.To reduce leakage, enhance the filling capacity in gap.
Technical scheme of the present invention is described in detail above in association with attached drawing, the present invention provides a kind of air intake duct group and its peaces
Dress method and compressor are fixedly connected again after injecting connecting tube 60 in enlarged portion, with consolidating for connecting tube 60 and conduit 30
Junction is determined as far as possible far from instlated tubular 50, and connecting tube 60 has protective effect to the instlated tubular 50 inside exhaust pipe 40,
It avoids impacting instlated tubular 50 when being fixedly connected and the heat-blocking action of instlated tubular 50 is caused to fail；In addition, using matching
The connecting tube 60 and conduit 30 of conjunction are the pipe axis and the suction hole of compressor inside cylinder of exhaust pipe 40 to fix exhaust pipe 40
The issuable deviation of axially bored line provides enough fault tolerant workspaces, reduces the required precision of the two, adaptability higher.
In the present invention, term " first ", " second ", " third " are only used for the purpose of description, and should not be understood as indicating
Or imply relative importance；Term " multiple " then refers to two or more, unless otherwise restricted clearly.Term " installation ",
The terms such as " connected ", " connection ", " fixation " shall be understood in a broad sense, for example, " connection " may be a fixed connection, can also be can
Dismantling connection, or be integrally connected；" connected " can be directly connected, can also be indirectly connected through an intermediary.For this
For the those of ordinary skill in field, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In description of the invention, it is to be understood that the instructions such as term "upper", "lower", "left", "right", "front", "rear"
Orientation or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention and simplification is retouched
It states, specific direction must be had, with specific azimuth configuration and operation by not indicating or implying the indicated device or unit,
It is thus impossible to be interpreted as limitation of the present invention.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the present invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical implementation or example.
Moreover, the particular features, structures, materials, or characteristics of description can be in any one or more of the embodiments or examples with suitable
Mode combine.
It these are only the preferred embodiment of the present invention, be not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification made by all within the spirits and principles of the present invention,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (17)
1. a kind of air intake duct group is used for the shell and liquid storage device of connect compressor, which is characterized in that the company of offering on the shell
Hole is connect, the air intake duct group includes：
Conduit is fixedly arranged on the shell, and the conduit forms enlarged portion along the expansion axially outward of the connecting hole；
Exhaust pipe is sheathed in the conduit, and one end of the exhaust pipe is stretched by the connecting hole in the shell；
Instlated tubular is set in the exhaust pipe, and the instlated tubular is connect with the inner wall of the exhaust pipe；
The inner segment of connecting tube, the connecting tube stretches into the enlarged portion of the conduit and the inner segment is fixed with the enlarged portion
Connection, the outer segment inner wall of the connecting tube is fixedly connected with the outer wall of the exhaust pipe, to be sheathed on outside the exhaust pipe.
2. air intake duct group according to claim 1, which is characterized in that the inner segment of the connecting tube is another with the conduit
End is axially fixed connection, and the connecting tube further includes：
Expansion segment is connected between the outer segment and the inner segment, and the outer wall of the inner wall of the expansion segment and the exhaust pipe
Between there are the first gaps.
3. air intake duct group according to claim 2, which is characterized in that the expansion segment is tapered or tubaeform.
4. air intake duct group according to claim 2, which is characterized in that first gap is greater than or equal to 2.5mm.
5. air intake duct group according to claim 4, which is characterized in that along the axial direction of ecto-entad, the connecting tube
At least partly outer segment in the connecting tube without leave outer end it is inward-facing be gradually reduced, the air intake duct group further includes：
First weld part is formed between the outer segment inner wall and the exhaust tube wall of the connecting tube.
6. air intake duct group according to any one of claim 1 to 5, which is characterized in that the conduit includes：
Linkage section, one end of the linkage section are fixedly connected with the side wall of the connecting hole, the other end of the linkage section and institute
Enlarged portion is stated to be connected；
The enlarged portion includes：
Expander section, the radial outward dilations by the linkage section along the connecting hole are formed；
Straight pipe, by expander section being extending axially outward form along the connecting hole.
7. air intake duct group according to claim 6, which is characterized in that further include：
Second weld part is formed between the inner segment outer wall and the straight pipe inner wall.
8. air intake duct group according to claim 7, which is characterized in that between the inner segment outer wall and the straight pipe inner wall
There are the second gap, second gap is less than or equal to 0.8mm.
9. air intake duct group according to claim 8, which is characterized in that stretch into the length of the part inner segment of the straight pipe
Length of the degree less than the inner segment rest part.
10. air intake duct group according to claim 9, which is characterized in that grow the part that the inner segment stretches into the straight pipe
Degree is greater than or equal to 5mm.
11. air intake duct group according to any one of claim 1 to 10, which is characterized in that the instlated tubular and the row
Tracheae is interference fitted or is bonded and is tightly connected with realizing.
12. air intake duct group according to claim 11, which is characterized in that the thermal coefficient of the instlated tubular is less than or equal to
5W/ (m ﹒ K), and the material of the connecting tube, the conduit and the exhaust pipe is steel or copper.
13. a kind of compressor, which is characterized in that including：
Shell and liquid storage device；
Wherein, compression unit is equipped in the shell, the compression unit is with the liquid storage device by appointing in claim 1 to 11
Air intake duct group described in one is tightly connected.
14. compressor according to claim 13, which is characterized in that the exhaust pipe of the air intake duct group stretches into the shell
Interior one end is interference fitted with the compression unit.
15. a kind of air intake duct group installation method, for the compressor described in claim 13 or 14, which is characterized in that the suction
Tracheae group installation method includes：
Connect the outer segment of the exhaust pipe of air intake duct group and the connecting tube of the air intake duct group；
The instlated tubular of the air intake duct group is sheathed in the exhaust pipe, and shape between the air intake duct group and the exhaust pipe
At sealing；
The exhaust pipe is stretched into the connecting hole on the shell of the compressor, so that the pressure of the exhaust pipe and the compressor
The suction hole of contracting unit is connected；
The enlarged portion of the outer segment of connecting tube described in circumferential sealing and the conduit.
16. air intake duct group installation method according to claim 15, which is characterized in that the exhaust of the connection air intake duct group
The outer segment of the connecting tube of pipe and the air intake duct group specifically includes：
By furnace brazing to realize the connection of the exhaust pipe and the outer segment of the connecting tube.
17. air intake duct group installation method according to claim 15, which is characterized in that connecting tube described in the circumferential sealing
Outer segment and the enlarged portion of the conduit specifically include：
By being brazed to realize the circumferential sealing of the outer segment of the connecting tube and the enlarged portion of the conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810273863.4A CN108386364B (en) | 2018-03-29 | 2018-03-29 | Suction pipe group, method of mounting suction pipe group, and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810273863.4A CN108386364B (en) | 2018-03-29 | 2018-03-29 | Suction pipe group, method of mounting suction pipe group, and compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108386364A true CN108386364A (en) | 2018-08-10 |
| CN108386364B CN108386364B (en) | 2020-06-05 |
Family
ID=63072516
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810273863.4A Active CN108386364B (en) | 2018-03-29 | 2018-03-29 | Suction pipe group, method of mounting suction pipe group, and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108386364B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238093A (en) * | 2018-11-29 | 2020-06-05 | 安徽美芝精密制造有限公司 | Pipe assembly, compressor, refrigeration equipment and installation method of pipe assembly |
| CN111255697A (en) * | 2018-11-30 | 2020-06-09 | 安徽美芝精密制造有限公司 | Compressor assembly |
| CN112555135A (en) * | 2020-12-03 | 2021-03-26 | 湖北理工学院 | Compressor air suction structure, compressor and refrigeration equipment |
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| CN201779032U (en) * | 2010-09-15 | 2011-03-30 | 广东美芝制冷设备有限公司 | Rotary type compressor |
| CN104595191A (en) * | 2015-01-15 | 2015-05-06 | 广东美芝制冷设备有限公司 | Compressor assembly |
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| JPH045485A (en) * | 1990-04-20 | 1992-01-09 | Hitachi Ltd | rotary compressor |
| JP3783346B2 (en) * | 1997-06-30 | 2006-06-07 | 松下電器産業株式会社 | Hermetic compressor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111238093A (en) * | 2018-11-29 | 2020-06-05 | 安徽美芝精密制造有限公司 | Pipe assembly, compressor, refrigeration equipment and installation method of pipe assembly |
| CN111255697A (en) * | 2018-11-30 | 2020-06-09 | 安徽美芝精密制造有限公司 | Compressor assembly |
| CN111255697B (en) * | 2018-11-30 | 2022-07-26 | 安徽美芝精密制造有限公司 | Compressor assembly |
| CN112555135A (en) * | 2020-12-03 | 2021-03-26 | 湖北理工学院 | Compressor air suction structure, compressor and refrigeration equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108386364B (en) | 2020-06-05 |
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