CN108344231B - Compressor, refrigerating system and method for mounting suction pipe group of compressor - Google Patents
Compressor, refrigerating system and method for mounting suction pipe group of compressor Download PDFInfo
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- CN108344231B CN108344231B CN201810272011.3A CN201810272011A CN108344231B CN 108344231 B CN108344231 B CN 108344231B CN 201810272011 A CN201810272011 A CN 201810272011A CN 108344231 B CN108344231 B CN 108344231B
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- air suction
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000003466 welding Methods 0.000 claims abstract description 44
- 238000007906 compression Methods 0.000 claims abstract description 26
- 230000006835 compression Effects 0.000 claims abstract description 25
- 238000009413 insulation Methods 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims abstract description 9
- 238000003860 storage Methods 0.000 claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 9
- 238000005057 refrigeration Methods 0.000 claims description 8
- NGONBPOYDYSZDR-UHFFFAOYSA-N [Ar].[W] Chemical compound [Ar].[W] NGONBPOYDYSZDR-UHFFFAOYSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000003507 refrigerant Substances 0.000 description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 230000008018 melting Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/006—Accumulators
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- Combustion & Propulsion (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Plasma & Fusion (AREA)
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention relates to a compressor structure, and discloses a compressor, a refrigerating system and a suction pipe set installation method of the compressor, wherein the compressor comprises a main shell and a liquid reservoir, a compression unit is installed in the main shell, a suction hole of the compression unit is communicated with the liquid reservoir in a sealing way through the suction pipe set, and the suction pipe set comprises: a conduit provided on an outer peripheral wall of the main casing and extending in a direction toward the reservoir; a connection pipe having one end hermetically connected to the suction hole of the compression unit and the other end extending outward through the guide pipe, the end of the connection pipe extending out of the guide pipe being provided with a first flange; the air suction pipe is provided with a second flange which is connected to the liquid storage device in a sealing way and is radially expanded at the other end, and the second flange and the first flange are welded and fixed with each other to connect the air suction pipe and the connecting pipe in a sealing way; the two ends of the heat insulation pipe are respectively inserted into the air suction pipe and the connecting pipe. The compressor can enable the welding position in the air suction pipe group to be far away from the heat insulation pipe, so that the limitation of a welding mode is avoided, and the air suction heat insulation capacity production degree is improved.
Description
Technical Field
The present invention relates to a compressor structure, and more particularly, to a compressor and a refrigeration system having the same. Correspondingly, the invention also relates to a mounting method of the suction pipe group of the compressor.
Background
The compressor is a driven fluid machine that lifts low pressure gas to high pressure gas and is the heart of the refrigeration system. The compressor generally comprises a main shell and a liquid storage device, wherein the liquid storage device is connected with the main shell through a suction pipe group, so that a refrigerant in the liquid storage device can flow into a cylinder arranged in the main shell for compression, and compressed high-temperature and high-pressure refrigerant gas is discharged through an exhaust pipe, thereby realizing a refrigeration cycle of compression, condensation (heat release), expansion and evaporation (heat absorption).
In the refrigeration cycle process, high-temperature and high-pressure gas is arranged in the main shell of the compressor, the air suction pipe group is always in sealing connection with the liquid storage device and the main shell, and heat of the main shell is easily conducted into low-temperature gaseous refrigerants flowing in the air suction pipe group through the outer wall of the air suction pipe group, so that the air suction overheating problem is caused. Studies have shown that suction superheat is one of the main factors affecting compressor efficiency. In order to avoid this problem, in the related art, a heat insulating tube is added to the suction tube group to block the conduction of heat from the main casing to the gaseous refrigerant flowing inside the suction tube group. However, the heat-insulating pipe is usually made of a polymer material with a low melting point, and when the air suction pipe group is directly welded and connected by adopting a welding method such as brazing, the heat of welding can cause the heat-insulating pipe to be excessively melted and lose efficacy; the welding method adopting laser welding and other low-heat input has high requirements on the machining precision, assembly clearance and the like of parts, and the mass production difficulty is high.
The Chinese patent publication with the application publication number of CN105221394A discloses a compressor assembly and a refrigerating system with the compressor assembly, and in the technical scheme, an everting pipe section is arranged on a guide pipe, and the everting pipe section is welded and fixed with a flanging pipe on a compressor shell, so that the assembly gap is reduced, and the requirements of laser welding on the assembly gap and the like are met. However, the following problems are unavoidable when the compressor assembly is actually performed in this way: the air suction pipe and the guide pipe are required to be welded and fixed. If the welding process is arranged before the guide pipe is pressed into the suction hole of the cylinder, the guide pipe is connected with the liquid storage device to form a whole, and the difficulty of the subsequent assembly process is increased; if this welding process is set after the duct has been pressed into the suction opening of the cylinder, in which duct the insulating tube has been previously installed, the welding process must take into account the effect of the welding heat on the insulating tube.
Therefore, the suction pipe group structure of the existing compressor needs to be further improved so as to meet the problem of heat insulation and production of suction air.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provide a compressor, a refrigeration system and a suction pipe assembly installation method of the compressor, wherein the compressor can enable a welding position in the suction pipe assembly to be far away from a heat insulation pipe, so that the limitation on a welding mode in the assembly process of the suction pipe assembly is eliminated, and the production degree of the suction heat insulation quantity is improved.
In order to achieve the above object, an aspect of the present invention provides a compressor including a main housing and a liquid reservoir, a compression unit installed in the main housing, a suction hole of the compression unit being in sealed communication with the liquid reservoir through a suction pipe group including: a duct provided on an outer peripheral wall of the main casing and extending toward the reservoir; one end of the connecting pipe is connected to the air suction hole of the compression unit in a sealing way, the other end of the connecting pipe penetrates through the guide pipe to extend outwards, and the end part of the connecting pipe, which extends out of the guide pipe, radially expands outwards to form a first flange; the air suction pipe is connected to the liquid storage device in a sealing way, a second flange which is expanded outwards in the radial direction is formed or connected at the other end of the air suction pipe, and the end surfaces of the second flange and the first flange, which are opposite to each other, are mutually welded and fixed so as to be connected with the air suction pipe and the connecting pipe in a sealing way; and two ends of the heat insulation pipe are respectively inserted into the air suction pipe and the connecting pipe.
Preferably, the second flange is located at a free end of the suction pipe on a side close to the main housing.
Preferably, the suction pipe group further comprises a flange having a connection section fitted and fixed to an outer pipe wall of the suction pipe, and the second flange is formed on the connection section.
Preferably, the connection section extends into or out of the connection tube.
Preferably, the end surface of the first flange facing away from the second flange is in sealing connection with the free end of the conduit facing the reservoir.
Preferably, a flaring section is formed on one end of the air suction pipe near the main shell, so that a heat insulation gap is formed between the outer pipe wall of the heat insulation pipe and the inner pipe wall of the air suction pipe at the flaring section.
Preferably, the second flange is located at the flared section.
Preferably, the air suction pipe is provided with a limiting protrusion, and the end part of the heat insulation pipe extending into the air suction pipe abuts against the limiting protrusion.
A second aspect of the present invention provides a refrigeration system comprising a compressor as described above.
A third aspect of the present invention provides a suction pipe group mounting method of a compressor including a main casing and a liquid reservoir, a compression unit being mounted in the main casing, a suction hole of the compression unit being in sealed communication with the liquid reservoir through a suction pipe group, the suction pipe group including: a duct provided on an outer peripheral wall of the main casing and extending toward the reservoir; one end of the connecting pipe is connected to the air suction hole of the compression unit in a sealing way, the other end of the connecting pipe penetrates through the guide pipe to extend outwards, and the end part of the connecting pipe, which extends out of the guide pipe, radially expands outwards to form a first flange; a suction pipe having one end hermetically connected to the reservoir and having a radially outwardly flared second flange formed or connected at the other end; the two ends of the heat insulation pipe are respectively inserted into the air suction pipe and the connecting pipe;
the suction pipe group installation method at least comprises the following steps:
s1, inserting the heat insulation pipe into the air suction pipe and axially fixing the heat insulation pipe;
s2, the connecting pipe is inserted and fixed into the air suction hole of the compression unit, and the first flange is abutted against the free end of the guide pipe, which faces the liquid reservoir;
s3, inserting the air suction pipe into the connecting pipe, and enabling the second flange to abut against the first flange;
s4, sealing and welding joints among the first flange, the second flange and the guide pipe.
Preferably, in step S4, the joints of the first flange, the second flange and the duct are sealed and welded by means of gas metal arc welding or argon tungsten-arc welding.
Through the technical scheme, in order to reduce or avoid the air suction overheat problem of the compressor, the air suction pipe is internally inserted with the heat insulation pipe, and the heat insulation pipe extends into the connecting pipe. When the first flange formed by radially expanding on the connecting pipe is welded with the second flange on the air suction pipe, the welding seams of the two flanges are radially far away from the inner heat insulation pipe, so that the welding is not limited to the welding forms of low heat input such as laser welding, and the high heat input welding can be performed in the forms of welding seams formed by filling and melting welding wires. In the welding mode, the requirements on the assembly precision of the suction pipe group and the machining and manufacturing precision of the internal parts are reduced, so that the manufacturing of the compressor with the suction pipe group can be realized in mass production more easily.
Other advantageous effects of the present invention will be described in detail in the following detailed description.
Drawings
FIG. 1 is a block diagram of a compressor in accordance with a preferred embodiment of the present invention, shown partially in section at a suction tube set;
FIG. 2 is a view showing the mounting structure of the suction tube group in the first preferred embodiment;
FIG. 3 is a view showing the mounting structure of the suction tube group in the second preferred embodiment;
FIG. 4 is a view showing the mounting structure of the suction tube group in the third preferred embodiment;
FIG. 5 is a view showing the mounting structure of the suction tube group in the fourth preferred embodiment;
fig. 6 is a view showing a mounting structure of the suction tube group in the fifth preferred embodiment;
fig. 7 is a view showing a mounting structure of the suction tube group in the sixth preferred embodiment.
Description of the reference numerals
1-a main housing; 2-a reservoir; a 3-compression unit; 30-an air suction hole; 4-a suction tube group; 40-conduit; 41-connecting pipes; 410-a first flange; 42-suction pipe; 420-a second flange; 421-flaring segment; 422-limit protrusions; 43-heat insulating pipe; 44-flanges; 440-connection segment.
Detailed Description
In the present invention, unless otherwise indicated, terms of orientation such as "upper, lower, left, right" and the like are used to generally refer to terms of positional relationship of various components with respect to one another, either with respect to the direction shown in the drawings or with respect to the vertical, vertical or neutral directions. The "inner and outer" means that the space covered by the main casing, the pipe wall, the side wall, and the like is "inner" and the other side is "outer" with respect to the casing wall of the main casing, the pipe wall of each pipe body, the side wall of the cylinder, and the like.
As shown in fig. 1, a compressor according to a preferred embodiment of the present invention includes a main housing 1 and a liquid reservoir 2, wherein a compression unit 3 is installed in the main housing 1, and preferably includes a cylinder and a piston installed in the cylinder, and a motor in the main housing 1 drives the compression unit 3 to act, thereby accomplishing compression of a refrigerant sucked from the liquid reservoir 2.
The refrigerant to be compressed is stored in the liquid reservoir 2, and the suction hole 30 on the compression unit 3 is communicated with the liquid reservoir 2 in a sealing way through the suction pipe group 4, so that the gaseous refrigerant in the liquid reservoir 2 can enter the main shell 1 through the suction hole 30. The suction pipe group 4 includes a guide pipe 40, a connection pipe 41, a suction pipe 42, and a heat insulation pipe 43, wherein:
the duct 40 is provided on the outer peripheral wall of the main casing 1 and extends in the direction of the reservoir 2, two ways of shaping the duct 40 being shown in fig. 2 and 3, wherein: in fig. 2, the conduit 40 is integrally formed on the main housing 1 through a flanging process; in fig. 3, the duct 40 is processed separately from the main casing 1 and is fixed to the main casing 1 by welding or the like.
One end of the connection pipe 41 is hermetically connected to the suction hole 30 of the compression unit 3, and the other end extends from the guide pipe 40 toward the reservoir 2, and a first flange 410 is formed radially outwardly from an end of the connection pipe 41 extending from the guide pipe 40.
One end of the suction tube 42 is sealingly connected to the interior of the reservoir 2 and the other end forms or is connected with a radially outwardly diverging second flange 420.
The two ends of the heat insulation pipe 43 are respectively inserted into the air suction pipe 42 and the connecting pipe 41, and the heat insulation pipe 43 is made of a polymer material with low melting point so as to reduce or even isolate the heat conduction between the refrigerant flow path inside the air suction pipe group 4 and the outside, and avoid the air suction overheat phenomenon of the compressor.
The first flange 410 and the second flange 420 are welded to each other to sealingly connect the suction pipe 42 and the connection pipe 41.
Since the first flange 410 and the second flange 420 are both of radially outwardly expanding structures, the weld formed between the first flange 410 and the second flange 420 is radially away from the heat insulating tube 43 in the intake tube group 4, and even if a welding form in which energy input such as gas shielded welding is high is adopted between the first flange 410 and the second flange 420, thermal damage to the heat insulating tube 43 is not caused. Therefore, after the suction pipe set 4 adopts the structure, the welding wire can be filled at the joint of the first flange 410 and the second flange 420, and the welding wire is melted to form the welding seam through the gas shielded welding and other forms, and further, the suction pipe set 4 adopting the welding form has better fault tolerance capability for assembly clearance and assembly precision, so that mass production of the compressor adopting the suction pipe set 4 is facilitated.
A first preferred embodiment of the suction tube set 4 is shown in fig. 2. In this preferred embodiment, the second flange 420 is formed on the air intake pipe 42 by an eversion process at the free end of the air intake pipe 42, or by welding or the like before inserting the heat insulating pipe 43.
In order to further reduce the external heat entering the refrigerant flow path in the heat insulating tube 43, a flared section 421 is formed on the air suction tube 42 at an end close to the main housing 1, and the second flange 420 is preferably disposed on the flared section 421, and the flared section 421 forms a heat insulating gap between the outer tube wall of the heat insulating tube 43 and the inner tube wall of the air suction tube 42 at the location where the flared section 421 is disposed. The formation of the heat-insulating gap is not only beneficial to improving the suction overheat phenomenon of the compressor, but also can further increase the radial distance between the heat-insulating tube 43 and the welding seam at the joint of the second flange 420 and the first flange 410 when the second flange 420 is arranged on the flaring section 421, so as to reduce the influence of energy input on the heat-insulating tube 43 during welding. The pipe section of the connection pipe 41 passing through the guide pipe 40 is also preferably provided in a flared manner (as shown in fig. 2), so that a gap is also formed between the outer pipe wall of the heat insulating pipe 43 and the inner pipe wall of the connection pipe 41 in the vicinity of the side wall of the main casing 1, and the suction overheat phenomenon of the compressor can be further improved.
Further, as shown in the fifth preferred embodiment of the suction pipe group 4 in fig. 6, the suction pipe 42 has a spacing protrusion 422, and the end portion of the heat insulating pipe 43 extending into the suction pipe 42 abuts against the spacing protrusion 422, so that the heat insulating pipe 43 and the suction pipe 42 can be axially positioned by the spacing protrusion 422. When the heat insulating tube 43 is mounted, the heat insulating tube 43 may be inserted into the air suction tube 42 first until the end of the heat insulating tube 43 abuts against the limiting protrusion 422, and then the heat insulating tube 43 is inserted into the connecting tube 41 until the first flange 410 and the second flange 420 abut against each other, and the end of the heat insulating tube 43 preferably extends into the air suction hole 30. The limiting projection 422 may be formed by, but not limited to, a rolling groove process, which is provided to form a concave structure in the suction pipe 42, defining the axial position of the heat insulating pipe 43.
Further, the end surface of the first flange 410 facing away from the second flange 420 is in sealing connection with the free end of the conduit 40 facing the reservoir 2. Due to the radially outwardly expanding arrangement of the first flange 410, the inner diameter of the duct 40 can be made larger without taking into consideration the problem of sealing the orifice of the duct 40, so that even when there is an error in the installation position of the cylinder 3 in the vertical direction, the existence of the error in the installation position can be tolerated by increasing the form of the inner diameter of the duct 40, the suction tube group 4 is prevented from being bent and deformed when passing through the duct 40 due to the installation error, and the orifice of the duct 40 is sealed by the radially outwardly expanding first flange 410.
A second preferred embodiment of the suction tube set 4 is shown in fig. 3. Which differs from the suction tube group 4 shown in fig. 2 in the structure: also included within the suction tube set 4 is a flange 44, the flange 44 having a connecting section 440 that fits over and is secured to the outer tube wall of the suction tube 42, and a second flange 420 is formed on the connecting section 440. Unlike the form of fig. 2 in which the second flange 420 is directly formed at the pipe end of the air intake pipe 42, in the embodiment shown in fig. 3, the flange 44 is fixedly fitted to the air intake pipe 42, so that the air intake pipe 42 has the second flange 420. The flange 44 may be welded to the suction pipe 42 in advance during the manufacturing process of the reservoir 2.
The connecting section 440 of the flange 44 shown in fig. 3 extends directly into the connecting tube 41 and is not located between the outer tube wall of the insulating tube 43 and the inner tube wall of the connecting tube 41. In contrast, in the sixth preferred embodiment shown in fig. 7, the connection section 440 does not extend between the heat insulating pipe 43 and the connection pipe 41, but is directly fixed to the outer pipe wall of the air suction pipe 42.
In the third preferred embodiment of the suction tube set 4 shown in fig. 4, the difference from the embodiment shown in fig. 3 is mainly in the manner in which the duct 40 is formed, the duct 40 of the suction tube set 4 shown in fig. 3 being formed separately from the main casing 1, and the duct 40 in fig. 4 being integrally formed with the main casing 1.
In the fourth preferred embodiment shown in fig. 5, the main differences from the embodiment shown in fig. 4 are: the air suction pipe 42 is sleeved and fixed on a flaring section 421 on the air suction pipe 42.
Another aspect of the present invention provides a refrigeration system employing a compressor of any one of the foregoing preferred embodiments.
In addition, the invention also provides an installation method of the compressor suction pipe group, which at least comprises the following steps:
s1, inserting the heat insulation pipe 43 into the air suction pipe 42 and axially fixing the heat insulation pipe 42, wherein in the preferred embodiment with the limit projection 422, the heat insulation pipe 42 is inserted into the pipe end to abut against the fiber projection 422, and in the embodiment adopting the flange 44, the flange 44 is sleeved and fixed with the air suction pipe 42 before inserting the heat insulation pipe 43;
s2, inserting and fixing the connecting pipe 41 into the suction hole 30 of the compression unit 3, and enabling the first flange 410 to abut against the free end of the conduit 40 facing the reservoir 2;
s3, inserting the air suction pipe 42 into the connecting pipe 41, and enabling the second flange 420 to abut against the first flange 410;
s4, sealing and welding joints of the first flange 410, the second flange 420 and the guide pipe 40.
In step S4, the joints between the first flange 410, the second flange 420, and the duct 40 are preferably sealed by gas metal arc welding or argon tungsten-arc welding, and the welding wire is preferably filled into all the joints to be welded at one time during the welding, and the welding is completed at one time.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, a plurality of simple variants of the technical proposal of the invention can be carried out, comprising that each specific technical feature is combined in any suitable way, and in order to avoid unnecessary repetition, the invention does not need to be additionally described for various possible combinations. Such simple variations and combinations are likewise to be regarded as being within the scope of the present disclosure.
Claims (11)
1. Compressor, including main casing (1) and reservoir (2), install compression unit (3) in main casing (1), suction hole (30) of compression unit (3) with reservoir (2) are through inhaling nest of tubes (4) sealed intercommunication, characterized in that, inhale nest of tubes (4) include:
a conduit (40), the conduit (40) being provided on the outer peripheral wall of the main housing (1) and extending in the direction of the reservoir (2);
a connecting pipe (41), one end of the connecting pipe (41) is connected to the air suction hole (30) of the compression unit (3) in a sealing way, the other end of the connecting pipe (41) extends outwards through the guide pipe (40), and the end of the connecting pipe (41) extending out of the guide pipe (40) is radially outwards expanded to form a first flange (410);
an air suction pipe (42), wherein one end of the air suction pipe (42) is connected to the liquid storage device (2) in a sealing way, a second flange (420) expanding outwards in a radial direction is formed or connected at the other end of the air suction pipe, and the end surfaces of the second flange (420) and the first flange (410) which are opposite to each other are mutually welded and fixed so as to connect the air suction pipe (42) and the connecting pipe (41) in a sealing way;
and a heat insulating pipe (43), wherein both ends of the heat insulating pipe (43) are respectively inserted into the air suction pipe (42) and the connecting pipe (41).
2. Compressor according to claim 1, characterized in that the second flange (420) is located at the free end of the suction pipe (42) on the side close to the main casing (1).
3. The compressor of claim 1, wherein the suction pipe group (4) further comprises a flange (44), the flange (44) having a connection section (440) fitted over and fixed to an outer pipe wall of the suction pipe (42), the second flange (420) being formed on the connection section (440).
4. A compressor according to claim 3, characterized in that the connection section (440) extends into the connection tube (41) or is located outside the connection tube (41).
5. The compressor according to claim 1, characterized in that the end face of the first flange (410) facing away from the second flange (420) is in sealing connection with the free end of the conduit (40) facing towards the reservoir (2).
6. A compressor according to any one of claims 1-5, characterized in that a flared section (421) is formed on the suction pipe (42) near the end of the main housing (1) such that a heat insulating gap is formed between the outer pipe wall of the heat insulating pipe (43) and the inner pipe wall of the suction pipe (42) at the flared section (421).
7. The compressor of claim 6, wherein the second flange (420) is located at the flared section (421).
8. The compressor according to claim 6, characterized in that the suction pipe (42) has a limit projection (422), against which limit projection (422) the end of the insulating pipe (43) that protrudes into the suction pipe (42) abuts.
9. A refrigeration system comprising a compressor according to any one of claims 1 to 8.
10. A suction pipe group installation method of a compressor, characterized in that the compressor comprises a main shell (1) and a liquid reservoir (2), a compression unit (3) is installed in the main shell (1), a suction hole (30) of the compression unit (3) is communicated with the liquid reservoir (2) in a sealing way through a suction pipe group (4), and the suction pipe group (4) comprises:
a conduit (40), the conduit (40) being provided on the outer peripheral wall of the main housing (1) and extending in the direction of the reservoir (2);
a connecting pipe (41), one end of the connecting pipe (41) is connected to the air suction hole (30) of the compression unit (3) in a sealing way, the other end of the connecting pipe (41) extends outwards through the guide pipe (40), and the end of the connecting pipe (41) extending out of the guide pipe (40) is radially outwards expanded to form a first flange (410);
a suction pipe (42), one end of the suction pipe (42) is connected to the liquid reservoir (2) in a sealing way, and a second flange (420) expanding outwards in a radial direction is formed or connected at the other end;
a heat insulating pipe (43), wherein both ends of the heat insulating pipe (43) are respectively inserted into the air suction pipe (42) and the connecting pipe (41);
the suction pipe group installation method at least comprises the following steps:
s1, inserting the heat insulation pipe (43) into the air suction pipe (42) and axially fixing the heat insulation pipe;
s2, inserting and fixing the connecting pipe (41) into the air suction hole (30) of the compression unit (3) and enabling the first flange (410) to abut against the free end of the conduit (40) facing the liquid reservoir (2);
s3, inserting the air suction pipe (42) into the connecting pipe (41) and enabling the second flange (420) to abut against the first flange (410);
s4 sealing and welding joints among the first flange (410), the second flange (420) and the conduit (40).
11. The suction pipe group mounting method according to claim 10, wherein in step S4, a seam between the first flange (410), the second flange (420), and the duct (40) is sealed and welded using a consumable electrode gas arc welding or a tungsten argon arc welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810272011.3A CN108344231B (en) | 2018-03-29 | 2018-03-29 | Compressor, refrigerating system and method for mounting suction pipe group of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810272011.3A CN108344231B (en) | 2018-03-29 | 2018-03-29 | Compressor, refrigerating system and method for mounting suction pipe group of compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108344231A CN108344231A (en) | 2018-07-31 |
| CN108344231B true CN108344231B (en) | 2023-07-28 |
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| CN201810272011.3A Active CN108344231B (en) | 2018-03-29 | 2018-03-29 | Compressor, refrigerating system and method for mounting suction pipe group of compressor |
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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 |
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