CN216812167U

CN216812167U - Enthalpy-increasing air suction pipe and compressor

Info

Publication number: CN216812167U
Application number: CN202122806109.2U
Authority: CN
Inventors: 张文科; 郭晓东; 蔡庆波; 曾鸿健; 李成龙; 陈建康
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Landa Compressor Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Landa Compressor Co Ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-06-24
Anticipated expiration: 2031-11-16

Abstract

The utility model provides an enthalpy-increasing air suction pipe and a compressor, belonging to the field of compressors; the enthalpy-increasing air suction pipe is applied to a compressor, is integrally formed by expanding a steel pipe in an expanding way and comprises a first air suction pipe and a second air suction pipe; the injection section with smaller inner diameter, the flaring section with larger inner diameter and the transition section between the injection section and the flaring section; the outer diameter of the injection section is D1, the outer diameter of the flaring section is D2, and the following relations are satisfied: D2/D1 is more than or equal to 1.2 and less than or equal to 1.8. The enthalpy-increasing air suction pipe is integrally formed by expanding a steel pipe, so that the requirement on the connection strength of the enthalpy-increasing air suction pipe and an injection hole of a pump body can be met; the inner wall surface and the outer wall surface of the opening expanding section of the enthalpy-increasing air suction pipe are respectively provided with a copper plating layer, so that the enthalpy-increasing air suction pipe can be conveniently welded with a copper liquid separator bent pipe. The enthalpy-increasing air suction pipe provided by the utility model has the advantages of strength and corrosion resistance, simple structure and manufacturing process and capability of reducing the cost of the enthalpy-increasing air suction pipe.

Description

Enthalpy-increasing air suction pipe and compressor

Technical Field

The utility model belongs to the field of compressors, and particularly relates to an enthalpy-increasing air suction pipe and a compressor.

Background

At present, an enthalpy-increasing air suction pipe used in the existing compressor is generally an injection needle assembly, in order to take strength and wear resistance and corrosion resistance under a working state into consideration, one end of a traditional injection assembly 2 is provided with a steel pipe, the other end connected with a cylinder connecting pipe is provided with a copper pipe, and the copper pipe part and the steel pipe part are connected together in a welding or interference fit mode. The interference fit and/or welded connection mode of the copper pipe portion 203 and the steel pipe portion 201 has the advantages that different materials are affected by expansion with heat and contraction with cold and the different thicknesses of the pipes in the working state, along with the vibration of the long-term compressor, the enthalpy-increasing air suction pipe is poor in stability, the process is complex, and the manufacturing cost is high. If only the steel pipe is adopted, the requirement of corrosion resistance can not be met, and the steel pipe is not easy to be welded with a copper compressor liquid distributor bent pipe during installation; if only the copper tube is adopted, the requirement of strength cannot be met and the cost is higher. Therefore, how to achieve the enthalpy-increasing intake pipe with the strength and the corrosion resistance and the low manufacturing cost is a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art or the related art.

Therefore, the utility model provides an enthalpy-increasing air suction pipe which is applied to a compressor and is integrally formed by flaring a steel pipe, and the enthalpy-increasing air suction pipe comprises a pipe body and a pipe body;

the injection section with smaller inner diameter, the flaring section with larger inner diameter and the transition section between the injection section and the flaring section;

the outer diameter of the injection section is D1, the outer diameter of the flaring section is D2, and the following relations are satisfied:

1.2≤D2/D1≤1.8。

furthermore, copper plating layers are arranged on the inner wall surface and the outer wall surface of the flaring section.

Further, the enthalpy-increasing air suction pipe has a thickness T, and satisfies the relationship: t is more than or equal to 0.4mm and less than or equal to 1.2 mm.

Further, the outer diameter of the injection section is D1, and satisfies the relation: d1 is more than or equal to 5mm and less than or equal to 7 mm.

Further, the length of the flared section is L2, which satisfies the relationship: l2 is more than or equal to 8mm and less than or equal to 14 mm.

Further, the outer diameter of the transition section is gradually increased from one end close to the injection section to one end close to the flaring section.

Further, the outer peripheral surface of the transition section is tapered.

Further, the injection section is used for being connected with an injection hole of the compressor pump body; the flaring section is used for being connected with a liquid distributor bent pipe of the compressor.

Further, another aspect of the present invention provides a compressor having the enthalpy-increasing suction pipe of any one of the above technical solutions.

Further, the compressor includes: the pump body injection hole is connected with the injection section of the enthalpy-increasing air suction pipe;

and the liquid separator bent pipe is inserted into the flared section of the enthalpy-increasing air suction pipe.

The utility model provides an enthalpy-increasing air suction pipe and a compressor, wherein the enthalpy-increasing air suction pipe is applied to the compressor and is integrally formed by flaring a steel pipe; the injection section with smaller inner diameter, the flaring section with larger inner diameter and the transition section between the injection section and the flaring section; the outer diameter of the injection section is D1, the outer diameter of the flaring section is D2, and the following relations are satisfied: D2/D1 is more than or equal to 1.2 and less than or equal to 1.8. The injection section with the smaller external diameter of the enthalpy-increasing air suction pipe is connected with the injection hole of the compressor pump body; the flaring section with larger outer diameter is connected with the elbow pipe of the liquid separator. The enthalpy-increasing air suction pipe is integrally formed by flaring a steel pipe, so that the requirement on the connection strength of the enthalpy-increasing air suction pipe and an injection hole of a pump body can be met; the inner wall surface and the outer wall surface of the opening expanding section of the enthalpy-increasing air suction pipe are respectively provided with a copper plating layer, so that the corrosion resistance of the enthalpy-increasing air suction pipe can be enhanced, and the enthalpy-increasing air suction pipe is convenient to weld with a copper liquid distributor bent pipe. The enthalpy-increasing air suction pipe provided by the utility model has the advantages of considering the strength, along with simple structure and manufacturing process, and reduces the cost of the enthalpy-increasing air suction pipe, thereby reducing the cost of the enthalpy-increasing compressor.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a front view of an enthalpy increasing intake pipe according to an embodiment of the present invention;

fig. 2 is a schematic diagram of an injection assembly in the background of the utility model.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 2 is:

1. an enthalpy-increasing air intake duct; 101. an injection section; 102. a transition section; 103. a flared section; 112. plating a copper layer; 2. an injection assembly; 201. a steel pipe portion; 203. a copper pipe portion.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

An enthalpy-increasing suction pipe and compressor according to some embodiments of the present invention will be described with reference to fig. 1 and 2.

Example one

As shown in fig. 1, in one embodiment of the present invention, an enthalpy-increasing intake pipe 1 is applied to a compressor, and the enthalpy-increasing intake pipe 1 is integrally formed by flaring a steel pipe, including; an injection section 101 with a smaller inner diameter, a flaring section 103 with a larger inner diameter, and a transition section 102 between the injection section 101 and the flaring section 103; the outer diameter of the injection section 101 is D1, the outer diameter of the flaring section 103 is D2, and the following relations are satisfied: D2/D1 is more than or equal to 1.2 and less than or equal to 1.8. The injection section 101 with the smaller external diameter of the enthalpy-increasing air suction pipe 1 is connected with the injection hole of the compressor pump body; the flared section 103 with the larger outer diameter is connected with the liquid separator elbow. The enthalpy-increasing air suction pipe 1 is integrally formed by flaring a steel pipe, so that the requirement on the connection strength of the enthalpy-increasing air suction pipe 1 and an injection hole of a pump body can be met; the arrangement of the transition part can avoid the damage of the enthalpy-increasing intake pipe 1 caused by the excessive local stress generated by the difference of the outer diameters of the injection section 101 and the flared section 103. The outer diameter of the transition section 102 is gradually increased from one end close to the injection section 101 to one end close to the flaring section 103; preferably; the outer peripheral surface of the transition portion may be tapered. If the external diameter ratio of flaring section 103 and injection section 101 is too big, receive the influence of enthalpy increase breathing pipe 1 self structure and stress, enthalpy increase breathing pipe 1 is broken off easily or the fracture, if the ratio undersize will influence the enthalpy increase air supplement volume, makes the compressor performance influenced, and the external diameter D2 of flaring section 103 and the external diameter ratio of injection section 101 satisfy the relation: D2/D1 of 1.2 is more than or equal to 1.8, and the enthalpy-increasing air-compensating quantity of the compressor is met while the strength of the compressor is ensured, so that the performance requirement of the compressor is met. The copper plating layers 112 are arranged on the inner wall surface and the outer wall surface of the flaring section 103, so that the corrosion resistance of the enthalpy-increasing air suction pipe 1 can be enhanced, and the welding with a copper liquid distributor elbow can be conveniently realized. The outer wall surface of the injection section 101 can be processed by fine grinding, so that the injection section 101 and the injection hole of the pump body can be matched accurately, and the sealing performance is ensured. The enthalpy-increasing air suction pipe 1 provided by the utility model has the advantages of considering both strength and corrosion resistance, along with simple structure and manufacturing process, and the cost of the enthalpy-increasing air suction pipe 1 is reduced, so that the cost of an enthalpy-increasing compressor is reduced.

Example two

As shown in fig. 1, in one embodiment of the utility model, the enthalpy-increasing intake pipe 1 has a thickness T satisfying the relationship: t is more than or equal to 0.4mm and less than or equal to 1.2 mm. The enthalpy-increasing air suction pipe 1 is formed by integrally flaring a steel pipe. The thickness of the tube wall of the injection section 101 and the flared section 103 may be different; the enthalpy-increasing air suction pipe 1 with the excessively thin wall thickness is easy to have pipe cracks in the production process and is easy to have the risk of breaking in use, so that the production yield of the enthalpy-increasing air suction pipe 1 is greatly reduced. The thickness of the pipe wall is too thick and is limited by the size of a pump body injection hole, and if the inner diameter of the enthalpy-increasing air suction pipe 1 is reduced, the ventilation quantity is insufficient, and the performance of the compressor is affected. The thickness T of the tube wall of the enthalpy-increasing air suction tube 1 in this embodiment satisfies the relationship: t is more than or equal to 0.4mm and less than or equal to 1.2mm, thus not only meeting the requirement of self strength, but also ensuring the ventilation capacity of the enthalpy-increasing air suction pipe 1.

Preferably, the outer diameter D1 of the injection section 101 of the enthalpy-increasing gas suction pipe 1 satisfies the relation: d1 is more than or equal to 5mm and less than or equal to 7 mm. The enthalpy-increasing air suction pipe 1 is usually assembled on a lower flange of a shell of a compressor or a partition plate of a pump body, the thickness of the lower flange or the pump body is thinner, the outer diameter D1 of the enthalpy-increasing air suction pipe 1 is set to be more than or equal to 5mm and less than or equal to D1 and less than or equal to 7mm, and damage caused by insufficient thickness of the lower flange or the partition plate due to overlarge outer diameter of the enthalpy-increasing air suction pipe 1 is avoided. Meanwhile, the problems that the ventilation quantity of the enthalpy-increasing air suction pipe 1 is insufficient due to too small outer diameter and relatively small inner diameter of the enthalpy-increasing air suction pipe 1, the enthalpy-increasing air supplement quantity is influenced, and the performance of the compressor is further influenced are avoided.

Preferably, the full length of the flared section 103 of the enthalpy-increasing intake pipe 1 is L2, satisfying the relation: l2 is more than or equal to 8mm and less than or equal to 14 mm. Because the compressed enthalpy-increasing air suction pipe 1 is generally a universal part, compressors of different models are generally used with the enthalpy-increasing air suction pipe 1, and the flared section 103 of the enthalpy-increasing air suction pipe 1 is generally matched with a liquid separator bent pipe. The problem of easy pipe breakage can be increased by too long length of the flaring segment 103, the flaring segment 103 cannot be installed and matched with the liquid distributor bent pipe due to too short length, and cannot be used universally, and new liquid distributors and liquid distributor bent pipes need to be manufactured. In this embodiment, the length L2 of the flared section 103 satisfies the relationship: l2 is more than or equal to 8mm and less than or equal to 14mm, so that the processing difficulty is reduced, and the enthalpy-increasing air suction pipe 1 meets the universal requirement of compressors of different models.

EXAMPLE III

As shown in fig. 1, the present invention proposes a compressor having an enthalpy-increasing suction pipe 1 according to any one of the above embodiments, thereby providing all the advantages and benefits of the enthalpy-increasing suction pipe 1 according to any one of the above embodiments. Further, the compressor includes: the pump body injection hole is connected with the injection section 101 of the enthalpy-increasing air suction pipe 1; for example, the inner wall surface of the pump body injection hole may be a surface subjected to finish grinding treatment; a liquid separator bend; inserted in the flared section 103 of the enthalpy-increasing gas suction pipe 1.

The utility model provides an enthalpy-increasing air suction pipe and a compressor, wherein the enthalpy-increasing air suction pipe 1 comprises: the injection section 101 with the smaller inner diameter and the flaring section 103 with the larger inner diameter are integrally formed by flaring of a steel pipe and are transited through a conical transition section 102 with the stress relieving function. In the present embodiment, the outer diameter D2 of the flare section 103 and the outer diameter D1 of the injection section 101 satisfy the relationship: D2/D1 is more than or equal to 1.2 and less than or equal to 1.8. The enthalpy-increasing air suction pipe 1 has a thickness T and satisfies the relationship: t is more than or equal to 0.4mm and less than or equal to 1.2 mm. The outer diameter of the injection section 101 is D1, satisfying the relationship: d1 is more than or equal to 5mm and less than or equal to 7 mm. The flared section 103 has a length L2, which satisfies the relationship: l2 is more than or equal to 8mm and less than or equal to 14 mm. On the premise of ensuring the strength of the enthalpy-increasing air suction pipe 1, the enthalpy-increasing air volume of the injection is ensured, so that the enthalpy-increasing air suction pipe 1 has universality and is suitable for compressors of different models. For injection subassembly 2 of compressor among the prior art, steel pipe portion 201 and copper pipe portion 203 welded connected mode, the enthalpy-increasing air suction pipe 1 of this embodiment compromises intensity, corrosion resistance, and structure and manufacturing process are simple, have reduced the cost of enthalpy-increasing air suction pipe 1 to the cost of enthalpy-increasing compressor has been reduced.

In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically defined, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An enthalpy-increasing air suction pipe (1) is applied to a compressor, and is characterized in that the enthalpy-increasing air suction pipe (1) is integrally formed by flaring a steel pipe and comprises a first end and a second end;

an injection section (101) with a smaller inner diameter, a flared section (103) with a larger inner diameter and a transition section (102) between the injection section (101) and the flared section (103);

the outer diameter of the injection section (101) is D1, the outer diameter of the flaring section (103) is D2, and the following relations are satisfied: D2/D1 is more than or equal to 1.2 and less than or equal to 1.8.

2. Enthalpy-increasing gas suction pipe (1) according to claim 1, characterized in that the flared section (103) is provided with copper plating (112) on both inner and outer wall surfaces.

3. An enthalpy inlet manifold (1) according to claim 1, characterized in that the enthalpy inlet manifold (1) has a thickness T satisfying the relation: t is more than or equal to 0.4mm and less than or equal to 1.2 mm.

4. Enthalpy-increasing gas suction pipe (1) according to claim 1, characterized in that the outer diameter of the injection section (101) is D1, satisfying the relation: d1 is more than or equal to 5mm and less than or equal to 7 mm.

5. An enthalpy-increasing intake tube (1) according to claim 1, characterized in that the flared section (103) has a length L2, satisfying the relation: l2 is more than or equal to 8mm and less than or equal to 14 mm.

6. An enthalpy-increasing gas suction pipe (1) according to claim 1, characterized in that the outer diameter of the transition section (102) increases gradually from an end near the injection section (101) to an end near the flared section (103).

7. Enthalpy-increasing gas suction pipe (1) according to claim 6, characterized in that the outer circumference of the transition section (102) is conical.

8. Enthalpy-adding suction pipe (1) according to claim 1, characterized in that the injection section (101) is intended to be connected with a pump body injection hole of a compressor; the flaring segment (103) is used for being connected with a liquid distributor elbow of the compressor.

9. Compressor, characterized by the fact that it has an enthalpy-increasing suction duct (1) according to any of claims 1-7.

10. Compressor, characterized by the fact that it has an enthalpy-increasing suction pipe (1) according to claim 8.

11. The compressor as set forth in claim 10, wherein said compressor includes:

the pump body injection hole is connected with the injection section (101) of the enthalpy-increasing air suction pipe (1);

the liquid separator bent pipe is inserted into the flaring section (103) of the enthalpy-increasing air suction pipe (1).