CN218065442U - Liquid storage device for compressor - Google Patents

Abstract

The utility model provides a reservoir for compressor, include: casing, fixed plate, oil return subassembly and connection nest of tubes. The fixed plate and the oil return assembly are arranged inside the shell, the oil return assembly comprises a connecting column and two oil return filter covers, a flow guide channel is arranged inside the connecting column, and the oil return filter covers are detachably arranged on the end face of the connecting column. The end face of the connecting column is provided with an oil guide hole, the side wall of the connecting column is also provided with two flow guide connecting pipes, and the oil guide hole and the flow guide connecting pipes are communicated with the flow guide channel. The connecting tube group includes: the top end of the air inlet pipe is arranged outside the shell, and the bottom end of the air inlet pipe is inserted into the shell. The top end of the air duct is positioned above the bottom end of the air inlet pipe, and the bottom end of the air duct is communicated with a flow guide connecting pipe. The top end of the air outlet pipe is arranged outside the shell, and the bottom end of the air outlet pipe is communicated with the other diversion connecting pipe. A reservoir for compressor, can effectively intercept solid impurity to avoid the oil gallery to take place to block up.

Description

Liquid storage device for compressor

Technical Field

The utility model belongs to the refrigeration plant field especially relates to a reservoir for compressor.

Background

In the process of the refrigeration system, the compressor sucks low-pressure refrigerant in the evaporator, and the refrigerant is input into the condenser for condensation after being boosted, so that the refrigeration work is finished by means of the phase change of the refrigerant. Because the refrigerating system can not ensure the complete vaporization of the refrigerant in the operation process, a worker usually sets a liquid storage device between an air inlet of the compressor and the evaporator, thereby avoiding the liquid impact phenomenon of the compressor caused by the entering of the liquid refrigerant.

As the operation period of the refrigeration system increases, the lubricant oil inside the compressor enters the inside of the circulation line along with the gas-phase refrigerant. In prior art, the staff can set up the oil gallery on the blast pipe of reservoir, when the compressor inhales the inside gaseous phase refrigerant of reservoir, deposit in the inside lubricating oil of reservoir will get into the compressor once more in the middle of to lubricate the protection to the compressor.

However, in actual operation, solid impurities inevitably occur inside the circulation line of the refrigeration system. When the refrigerant circulates and flows, the oil return hole is easily blocked by solid impurities. After the oil return hole is blocked, the compressor will have the conditions of reduced refrigeration efficiency, increased part abrasion and the like due to oil shortage, so that the working effect and the service life of the refrigeration system are seriously influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a liquid storage device for a compressor to solve the above technical problem.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

an accumulator for a compressor, comprising: the oil return device comprises a shell, a fixing plate, an oil return assembly and a connecting pipe group, wherein the fixing plate and the oil return assembly are arranged inside the shell, the fixing plate is provided with a flow guide hole, a first mounting hole and a second mounting hole, and the oil return assembly is positioned below the fixing plate; the oil return component comprises a connecting column and two oil return filtering covers, the axis of the connecting column is parallel to the bottom surface of the fixing plate, a flow guide channel is arranged inside the connecting column, and the two oil return filtering covers are respectively detachably arranged on two end surfaces of the connecting column; the two end faces of the connecting column are provided with oil guide holes, the side wall of the connecting column is also provided with two flow guide connecting pipes, and the oil guide holes and the flow guide connecting pipes are communicated with the flow guide channel; the connection tube group includes: the top end of the air inlet pipe is arranged outside the shell, and the bottom end of the air inlet pipe is inserted into the diversion hole; the air guide pipe is arranged in the first mounting hole, the top end of the air guide pipe is positioned above the bottom end of the air inlet pipe, and the bottom end of the air guide pipe is communicated with a flow guide connecting pipe; the air outlet pipe is arranged in the second mounting hole, the top end of the air outlet pipe is arranged on the outer side of the shell, and the bottom end of the air outlet pipe is communicated with the other diversion connecting pipe.

Furthermore, an air inlet filter cover is arranged in the shell, the air inlet filter cover is detachably arranged on the bottom surface of the fixing plate, and the air inlet filter cover is aligned with the flow guide holes.

Furthermore, the aperture of the filtering hole on the oil return filtering cover is smaller than that of the filtering hole on the air inlet filtering cover.

Further, the oil guide hole includes: the flow guide device comprises a conical gathering section, a cylindrical communicating section and a conical diffusion section, wherein the inner diameter of the cylindrical communicating section is smaller than that of the flow guide channel, the small end of the conical gathering section is communicated with one end of the cylindrical communicating section, the other end of the cylindrical communicating section is communicated with the small end of the conical diffusion section, and the large end of the conical diffusion section is communicated with the flow guide channel.

Furthermore, a screwed connection pipe is arranged on the end face of the connecting column, and the oil guide hole is arranged on the end face of the screwed connection pipe; the opening side of the oil return filter mantle is provided with a first connecting sleeve, the first connecting sleeve is sleeved outside the threaded connection pipe, and an internal thread matched with the threaded connection pipe is arranged on the inner side wall of the first connecting sleeve.

Furthermore, the flow guide connecting pipe comprises a connecting section and a bearing section, the connecting section is arranged above the bearing section, and the outer diameter of the connecting section is smaller than that of the bearing section; the outer side wall of the connecting section is provided with external threads, the bottom ends of the guide pipe and the air outlet pipe are respectively provided with a second connecting sleeve, and the inner side wall of the second connecting sleeve is provided with internal threads matched with the external threads.

Furthermore, be equipped with the sealing washer on the linkage segment, be equipped with annular sealing arch on the bottom surface of sealing washer be equipped with on the top surface of bearing the weight of the section and be used for holding the bellied sealed annular of annular sealing.

Compared with the prior art, a reservoir for compressor have following advantage:

(1) A reservoir for compressor, can make inside lubricating oil of reservoir get into water conservancy diversion passageway through leading the oilhole inside, when the compressor inhales the inside gaseous phase material of reservoir, inside lubricating oil can follow gaseous phase material and get into the compressor to lubricate the protection to the compressor. In addition, this device is equipped with the oil return filter mantle at the tip of spliced pole, can filter the lubricating oil that gets into the oil guide hole through the oil return filter mantle to avoid solid impurity to block up the oil guide hole.

(2) A reservoir for compressor, be equipped with the filter mantle that admits air on the fixed plate, after lubricating oil got into this reservoir along with the refrigerant, the filter mantle that admits air can carry out the prefilter to lubricating oil, the oil return filter mantle can filter lubricating oil once more to further reduce solid impurity and get into the possibility of leading the oilhole, make and lead the oilhole and keep unblocked in long-time course of the work.

(3) A reservoir for compressor, its oil guide hole includes circular cone gathering section, cylinder intercommunication section and circular cone divergent section, and the internal diameter of cylinder intercommunication section is less than the internal diameter of water conservancy diversion passageway. After gaseous phase material inside the casing enters the diversion channel along the air duct, the flow of gaseous phase material can inhale lubricating oil into the oil guide hole. When the lubricating oil flows from the conical gathering section to the cylindrical communicating section, the flow velocity of the lubricating oil can be improved, and therefore the speed of the lubricating oil entering the oil guide hole is increased. When the lubricating oil flows from the cylindrical communicating section to the conical diffusion section, the flow velocity of the lubricating oil is reduced, so that the lubricating oil can be uniformly diffused into the gas-phase substance.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural diagram of a liquid reservoir according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a reservoir according to an embodiment of the present invention;

fig. 3 is a cutaway inside view of the housing according to the embodiment of the present invention;

fig. 4 is a schematic structural view of an oil return assembly, an air duct and an air outlet duct according to an embodiment of the present invention;

fig. 5 is a sectional inner view of the connection column according to the embodiment of the present invention.

Description of reference numerals:

1-a shell; 2, fixing a plate; 21-diversion holes; 22-a first mounting hole; 23-a second mounting hole; 3-connecting a column; 31-a flow guide channel; 32-oil guide holes; 321-a conical gathering section; 322-cylindrical communicating section; 323-conical diffuser section; 331-a connecting segment; 332-a carrier segment; 333-sealing ring groove; 34-a nipple; 4-return oil filter mantle; 41-a first connection sleeve; 51-an intake pipe; 52-an airway tube; 53-an air outlet pipe; 54-a second connection sleeve; 6-air inlet filter cover; 7-sealing ring; 71-annular sealing projection.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be combined with each other.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

A reservoir for a compressor, the structure of which can be schematically shown in fig. 1-3, wherein the reservoir in this embodiment comprises: casing 1, fixed plate 2, oil return subassembly and connecting pipe group, wherein fixed plate 2 and oil return subassembly all set up inside casing 1, and the connecting pipe group is used for realizing the medium intercommunication of this device and evaporimeter and compressor. When the compressor is used, the low-pressure refrigerant in the evaporator enters the shell 1 under the action of the suction force of the compressor, the liquid refrigerant and the lubricating oil are accumulated at the bottom of the shell 1 under the influence of gravity, and the gaseous refrigerant is sucked into the compressor.

As shown in fig. 2, the oil return assembly in the present device is disposed below the fixed plate 2. Since the density of the lubricating oil is high, the liquid stored in the casing 1 is stratified after the refrigerant mixed with the lubricating oil enters the casing 1, and the lubricating oil is stored in the lower layer region. The staff can select the setting position of oil return subassembly according to actual work experience to make oil return subassembly be in the inside of lubricating oil deposit layer when working.

Specifically, the oil return assembly comprises a connecting column 3 and two oil return filter housings 4, wherein the axis of the connecting column 3 is parallel to the bottom surface of the fixing plate 2, a flow guide channel 31 for containing gaseous refrigerant and lubricating oil is arranged inside the connecting column 3, and oil guide holes 32 communicated with the flow guide channel 31 are arranged on two end surfaces of the connecting column 3. When in use, the lubricating oil enters the flow guide channel 31 along the oil guide hole 32. In addition, in order to avoid the solid impurities from blocking the oil guide hole 32, the two oil return filter covers 4 should be detachably arranged on the two end faces of the connecting column 3 respectively, and when the lubricating oil flows into the oil guide hole 32, the oil return filter covers 4 will filter the lubricating oil, so that the solid impurities are intercepted outside the oil return filter covers 4.

Optionally, in order to realize the assembly between the return oil filter housing 4 and the connection column 3, a nipple 34 may be disposed on the end surface of the connection column 3, and the oil guide hole 32 is disposed on the end surface of the nipple 34. Correspondingly, a first connecting sleeve 41 is arranged on the opening side of the return oil filter housing 4, and an internal thread is arranged on the inner side wall of the first connecting sleeve 41. When the oil return filter cover is installed, a worker can sleeve the first connecting sleeve 41 outside the nipple 34 and realize the connection between the oil return filter cover 4 and the connecting column 3 through threads.

In order to facilitate the refrigerant entering and leaving the shell 1, the connection pipe set in this embodiment includes: an inlet pipe 51, an air duct 52, and an outlet pipe 53. Correspondingly, two flow guide connecting pipes are further arranged on the side wall of the connecting column 3, and the two flow guide connecting pipes are communicated with the flow guide channel 31. When assembling, the inlet pipe 51 is used to facilitate the refrigerant to enter the housing 1, and the top end of the inlet pipe 51 is disposed outside the housing 1 and the bottom end is inserted into the housing 1. The air duct 52 is used for guiding gaseous refrigerant inside the shell 1 into the reflux assembly, the bottom end of the air duct 52 is communicated with a flow guide connecting pipe on the connecting column 3, and the top end of the air duct is arranged inside the shell 1. The gas outlet pipe 53 is used for guiding the gaseous refrigerant out of the shell 1, the bottom end of the gas outlet pipe 53 is communicated with the other flow guide connecting pipe on the connecting column 3, the top end of the gas outlet pipe 53 is arranged on the outer side of the shell 1, and when the gas outlet pipe 53 is used, a worker can communicate the gas outlet pipe 53 with the compressor through the guide pipe.

It should be noted that, when installing the air duct 52, the worker should ensure that the top end of the air duct 52 is located above the bottom end of the air inlet pipe 51, so as to avoid the refrigerant entering the casing 1 along the air inlet pipe 51 directly entering the air duct 52, and at the same time, provide sufficient time for the liquid component in the refrigerant to fall down.

In order to improve the fixing effect of the connecting pipe group in the casing 1, the fixing plate 2 should be provided with a diversion hole 21, a first mounting hole 22 and a second mounting hole 23. When assembling the connection pipe set, the bottom end of the air inlet pipe 51 should be inserted into the diversion hole 21, the air duct 52 is disposed inside the first mounting hole 22, and the air outlet pipe 53 is disposed inside the second mounting hole 23.

Optionally, in order to reduce the difficulty of connecting the connecting column 3 with the air duct 52 and the air outlet duct 53, as shown in fig. 4, the flow guiding connection tube may include a connecting section 331 and a bearing section 332. Wherein the connecting section 331 is disposed above the carrying section 332, and an outer diameter of the connecting section 331 is smaller than an outer diameter of the carrying section 332. The outer side wall of the connecting section 331 is provided with external threads, correspondingly, the bottom ends of the guide pipe and the air outlet pipe 53 are provided with second connecting sleeves 54, and the inner side wall of each second connecting sleeve 54 is provided with internal threads. When assembling, the staff can realize the connection between the connecting column 3 and the air duct 52 and the air outlet tube 53 by means of threaded connection, thereby improving the assembling efficiency of the device.

In addition, in order to improve the sealing effect between the connecting column 3 and the air duct 52 and the air outlet duct 53, a sealing ring 7 may be disposed on the connecting section 331. Specifically, an annular sealing protrusion 71 is disposed on the bottom surface of the sealing ring 7, and a sealing ring groove 333 is disposed on the top surface of the bearing section 332. When the air duct connecting structure is installed, the bottom surface of the second connecting sleeve 54 and the top surface of the bearing section 332 extrude the sealing ring 7, and meanwhile, the sealing protrusion 71 is inserted into the sealing ring groove 333, so that the splicing part of the connecting column 3, the air duct 52 and the air outlet pipe 53 obtains a good sealing effect, and the refrigerant is prevented from leaking.

In the actual working process, because the refrigerant can smuggle solid impurity in the circulation process, therefore the oil return hole of reservoir often takes place to block up, for avoiding this condition to take place, this embodiment still can be equipped with air intake filter cover 6 in casing 1 inside. Specifically, the air inlet filter cover 6 is detachably arranged on the bottom surface of the fixing plate 2 through a bolt, and the air inlet filter cover 6 is aligned with the diversion hole 21. After the refrigerant enters the casing 1 along the inlet pipe 51, the inlet filter cover 6 will filter the refrigerant, so as to prevent solid impurities from entering the inside of the casing 1.

In addition, for promoting the inside filter effect of this device, the filtration pore aperture on the oil return filter mantle 4 is less than the filtration pore aperture on the filter mantle 6 that admits air. When the refrigerant flows through the intake filter housing 6, the intake filter housing 6 will block large solid particles. When the lubricating oil in the shell 1 flows to the inside of the oil return assembly, the oil return filter cover 4 filters the lubricating oil for the second time, so that small solid impurities are intercepted outside the oil return assembly, and the oil guide hole 32 is prevented from being blocked.

Fig. 5 is a sectional inside view of the connecting column 3, and as shown in the drawing, the oil guide hole 32 may include: a conical converging section 321, a cylindrical communicating section 322 and a conical diverging section 323. The inner diameter of the cylindrical communicating section 322 should be smaller than the inner diameter of the flow guide channel 31, the small end of the conical gathering section 321 is communicated with one end of the cylindrical communicating section 322, the other end of the cylindrical communicating section 322 is communicated with the small end of the conical diffusing section 323, and the large end of the conical diffusing section 323 is communicated with the flow guide channel 31. When the gaseous refrigerant flows inside the flow guide passage 31, a negative pressure is formed inside the oil guide hole 32, so that the lubricating oil inside the casing 1 is sucked into the flow guide hole 32. When the lubricant oil flows from the conical collecting section 321 to the cylindrical communicating section 322, the flow rate of the lubricant oil is increased due to the decrease of the inner diameter of the passage, and thus the speed of the lubricant oil entering the oil guide hole 32 can be increased. When the lubricating oil flows from the cylindrical communicating section 322 to the conical diffusing section 323, the flow velocity of the lubricating oil is reduced due to the increase of the inner diameter of the channel, so that the lubricating oil can be conveniently and uniformly diffused into the gas-phase refrigerant, and the difficulty of carrying the lubricating oil by the gas-phase refrigerant is reduced.

The following explains the effects of the above-described scheme:

the embodiment provides a reservoir for compressor, can carry out twice filtration to lubricating oil through admit air filter mantle and oil return filter mantle to avoid solid impurity to get into and lead the oilhole, make and lead the oilhole and keep unblocked in long-time working process. In addition, the oil guide hole in the device comprises a cone gathering section, a cylinder communicating section and a cone diffusing section, the speed of lubricating oil entering the oil return assembly can be increased through the cone gathering section, the uniform diffusion degree of the lubricating oil can be increased through the cone diffusing section, and therefore the oil return effect of the liquid storage device is improved.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a reservoir for compressor which characterized in that: the method comprises the following steps: the oil return device comprises a shell (1), a fixing plate (2), an oil return assembly and a connecting pipe group, wherein the fixing plate (2) and the oil return assembly are arranged inside the shell (1), a flow guide hole (21), a first mounting hole (22) and a second mounting hole (23) are formed in the fixing plate (2), and the oil return assembly is located below the fixing plate (2); the oil return component comprises a connecting column (3) and two oil return filtering covers (4), the axis of the connecting column (3) is parallel to the bottom surface of the fixing plate (2), a flow guide channel (31) is arranged in the connecting column (3), and the two oil return filtering covers (4) are respectively detachably arranged on two end faces of the connecting column (3); two end faces of the connecting column (3) are respectively provided with an oil guide hole (32), the side wall of the connecting column (3) is also provided with two flow guide connecting pipes, and the oil guide holes (32) and the flow guide connecting pipes are communicated with the flow guide channel (31); the connection pipe group includes: the air inlet pipe (51), the air guide pipe (52) and the air outlet pipe (53), wherein the top end of the air inlet pipe (51) is arranged on the outer side of the shell (1), and the bottom end of the air inlet pipe is inserted into the diversion hole (21); the air duct (52) is arranged in the first mounting hole (22), the top end of the air duct (52) is positioned above the bottom end of the air inlet pipe (51), and the bottom end of the air duct (52) is communicated with one flow guide connecting pipe; the air outlet pipe (53) is arranged in the second mounting hole (23), the top end of the air outlet pipe (53) is arranged on the outer side of the shell (1), and the bottom end of the air outlet pipe (53) is communicated with the other diversion connecting pipe.

2. An accumulator for a compressor according to claim 1, characterized in that: the air inlet filter cover (6) is further arranged inside the shell (1), the air inlet filter cover (6) is detachably arranged on the bottom surface of the fixing plate (2), and the air inlet filter cover (6) is aligned with the flow guide holes (21).

3. The accumulator for a compressor of claim 2, wherein: the aperture of the filtering hole on the oil return filtering cover (4) is smaller than that of the filtering hole on the air inlet filtering cover (6).

4. An accumulator for a compressor according to claim 1, characterized in that: the oil guide hole (32) includes: the flow guide device comprises a conical gathering section (321), a cylindrical communicating section (322) and a conical diffusing section (323), wherein the inner diameter of the cylindrical communicating section (322) is smaller than that of the flow guide channel (31), the small end of the conical gathering section (321) is communicated with one end of the cylindrical communicating section (322), the other end of the cylindrical communicating section (322) is communicated with the small end of the conical diffusing section (323), and the large end of the conical diffusing section (323) is communicated with the flow guide channel (31).

5. The accumulator for a compressor of claim 1, wherein: a nipple (34) is arranged on the end surface of the connecting column (3), and the oil guide hole (32) is arranged on the end surface of the nipple (34); the opening side of oil return filter mantle (4) is equipped with first adapter sleeve (41), first adapter sleeve (41) cover is established in nipple (34) outside, and is equipped with the internal thread with nipple (34) matched with on the inside wall of first adapter sleeve (41).

6. The accumulator for a compressor of claim 1, wherein: the flow guide connection pipe comprises a connecting section (331) and a bearing section (332), wherein the connecting section (331) is arranged above the bearing section (332), and the outer diameter of the connecting section (331) is smaller than that of the bearing section (332); the outer side wall of the connecting section (331) is provided with external threads, the bottom ends of the guide pipe and the air outlet pipe (53) are respectively provided with a second connecting sleeve (54), and the inner side wall of the second connecting sleeve (54) is provided with internal threads matched with the external threads.

7. The accumulator of claim 6, wherein: the connecting section (331) is provided with a sealing ring (7), the bottom surface of the sealing ring (7) is provided with an annular sealing bulge (71), and the top surface of the bearing section (332) is provided with a sealing ring groove (333) for accommodating the annular sealing bulge (71).

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