CN111928024A - Refrigerating device pipeline connecting structure and evaporator pipeline connecting structure - Google Patents

Abstract

The invention discloses a pipeline connection structure of a refrigeration device and an evaporator pipeline connection structure. Evaporator, the device pipelines are located at both ends of the evaporator. In the present invention, the connecting ring moves along the pipeline and is tightly sleeved on the outer casing connecting section in the direction of the outer casing connecting section, so that the compression sealing section of the connecting ring moves to the outer peripheral wall of the outer casing connecting section, and makes the outer casing connecting section port The distance beyond the end face of the compression section of the connecting ring is not less than 1mm to ensure that the outer sleeve and the connecting section of the inner cannula are compressed and overlapped circumferentially after the compression and sealing section of the connecting ring is compressed. The structure is simple, easy to install, and has better sealing.

Description

Refrigeration device pipeline connection structure and evaporator pipeline connection structure

technical field

The invention relates to the technical field of bus refrigeration devices, in particular to a pipeline connection structure of a refrigeration device and an evaporator pipeline connection structure.

Background technique

For now, most of the evaporator pipelines in the bus air conditioning refrigeration unit and other pipelines in the device are connected by flame brazing, but in practical applications, the diameter of the bus air conditioning refrigeration pipeline is generally more than 12.7mm. , when using flame brazing, there are often the following technical defects: due to the limitation of the internal space of the refrigeration device, the welding is performed in the deep cavity structure, and the operator is inflexible; It is a large-diameter pipeline with thick wall thickness, which makes the welding process very difficult. During welding, it is easy to cause problems such as uneven distribution of the welding liquid after the welding rod melts, false welding, and excessive welding tumor, resulting in the leakage rate of the pipeline connection. higher, there is a certain impact.

SUMMARY OF THE INVENTION

The purpose of the present invention is to propose a pipeline connection structure of a refrigeration device and an evaporator pipeline connection structure in order to solve the shortcomings existing in the prior art.

In order to achieve the above purpose, the present invention adopts the following technical solutions: the pipeline connection structure of the refrigeration device and the pipeline connection structure of the evaporator, including the connecting ring, the device pipeline, the sealing liquid injection device, and the evaporator, including the connecting ring and the device pipe Road, sealing liquid injection device, evaporator, the device pipeline is located at both ends of the evaporator;

Wherein, the evaporator includes an evaporator pipeline, both ends of the evaporator pipeline are embedded and connected with the device pipeline, and the connecting ring is sleeved between the device pipeline and the evaporator pipeline;

The connecting ring is provided with a special hydraulic clamp;

The sealing liquid is provided inside the sealing liquid injection device.

As a further description of the above technical solution:

The evaporator pipeline includes an outer casing connection section, a crimping compression section, a connection limit portion, an evaporator return gas pipe connection end, and an evaporator capillary connection end. The connection ring is sleeved on the device pipeline to be connected, so The device pipeline includes a connecting section of an inner cannula.

As a further description of the above technical solution:

The gap between the outer sleeve connection section and the inner intubation tube connection section is filled with sealing liquid, and a circumferential compression overlapping seal is formed between the outer sleeve connection section and the inner intubation tube connection section.

As a further description of the above technical solution:

The connecting ring includes a conical guide section of the connecting ring and a compression sealing section of the connecting ring. The front end aperture of the conical guiding section of the connecting ring is larger than the outer pipe diameter of the connecting section of the outer casing, and the aperture of the compression sealing section of the connecting ring is larger than that of the inner casing. The outer pipe diameter of the cannula connection section is smaller than the outer pipe diameter of the outer casing connection section.

As a further description of the above technical solution:

The inner cannula connecting section is placed horizontally or obliquely downward.

As a further description of the above technical solution:

The connecting ring moves along the pipeline and is tightly sleeved on the outer casing connecting section in the direction of the outer casing connecting section.

The present invention has the following beneficial effects:

1. The pipeline connection structure of the refrigeration device and the evaporator pipeline connection structure, when in use, are connected through the set connection ring, device pipeline, evaporator pipeline, sealing liquid, hydraulic clamp, sealing liquid injection device, evaporator , insert the inner tube connecting section at the front of the device pipeline into the lumen of the outer tube connecting section at the front end of the evaporator tube, and place the sealing droplet on the outer circumference of the inner tube connecting section at the mouth end of the outer tube connecting section on the wall, so that the sealing liquid automatically flows through the capillary effect to fill the fitting gap between the inner peripheral wall of the outer casing connecting section and the outer peripheral wall of the inner intubation connecting section, and in order to ensure a good capillary effect, the gap is guaranteed to be 0.1mm ~0.2mm; use hydraulic pliers to move the connecting ring along the pipeline and tightly cover the outer casing connecting section in the direction of the outer casing connecting section, so that the compression sealing section of the connecting ring moves to the outer peripheral wall of the outer casing connecting section, and makes the outer casing The distance between the port of the pipe connection section and the end face of the compression section of the connection ring is not less than 1mm, to ensure that the outer casing and the inner tube connection section are compressed and overlapped circumferentially after the compression and sealing section of the connection ring is compressed. The structure is simple, easy to install, and has better performance. of sealing.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is the sectional view of A in Fig. 1 of the present invention;

FIG. 3 is a schematic diagram of the connection method of the evaporator pipeline of the refrigeration device of the present invention.

illustration:

1. Connecting ring; 11. Conical guide section of connecting ring; 12. Compression sealing section of connecting ring; 2. Device pipeline; 21. Connecting section of inner tube; 3. Evaporator pipeline; 31. Connecting section of outer casing; 32. Crimping compression section; 33. Connection limiter; 34. Connection end of evaporator return gas pipe; 35. Connection end of evaporator capillary; 4. Sealing fluid; 5. Hydraulic clamp; 6. Sealing fluid injection device; 7 ,Evaporator.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention; the terms "first", "second", "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance, and unless otherwise Clearly stipulated and defined, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or a Electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

1-3, an embodiment provided by the present invention: a refrigeration device pipeline connection structure and an evaporator pipeline connection structure, including a connecting ring 1, a device pipeline 2, a sealing liquid injection device 6, and an evaporator 7, It includes a connecting ring 1, a device pipeline 2, a sealing liquid injection device 6, and an evaporator 7. The device pipeline 2 is located at both ends of the evaporator 7; wherein, the evaporator 7 includes an evaporator pipeline 3 and an evaporator pipeline. Both ends of 3 are embedded and connected with the device pipeline 2, and the connecting ring 1 is sleeved between the device pipeline 2 and the evaporator pipeline 3; the connecting ring 1 is provided with a special hydraulic clamp 5; A sealing liquid 4 is provided.

The evaporator pipeline 3 includes an outer casing connection section 31, a crimping compression section 32, a connection limiter 33, an evaporator return gas pipe connection end 34, and an evaporator capillary connection end 35. The connection ring 1 is sleeved on the device pipe to be connected. On the road 2, the device pipeline 2 includes an inner cannula connecting section 21, which can facilitate the installation of the device and improve the installation efficiency; the gap between the outer cannula connecting section 31 and the inner cannula connecting section 21 is filled with sealing liquid 4, and A circumferential compression overlapping seal is formed between the outer casing connecting section 31 and the inner casing connecting section 21, and the hydraulic pliers 5 can move and tighten the connecting ring 1 along the pipe in the direction of the outer casing, so that the outer casing connecting section 31 is connected to the inner casing. A circumferential compression overlapping seal is formed between the pipe connecting sections 21; the connecting ring 1 includes a connecting ring conical guide section 11, a connecting ring compression sealing section 12, and the front end aperture of the connecting ring conical guide section 11 is larger than that of the outer casing connecting section 31. The diameter of the outer tube, the diameter of the connecting ring compression sealing section 12 is larger than the outer diameter of the inner tube connection section 21 and smaller than the outer tube diameter of the outer sleeve connection section 31, so that the connection ring tapered guide section 11 and the connection ring can be compressed. The sealing section 12 is respectively connected with the outer casing connecting section 31 and the inner casing connecting section 21; the inner casing connecting section 21 is placed horizontally or obliquely downward, which is convenient for installation and connection; the connecting ring 1 moves along the pipeline and connects to the outer casing The section 31 is tightly sleeved on the outer casing connecting section 31, so that the outer casing and the inner cannula connecting section 21 can be compressed and overlapped in the circumferential direction after the compression sealing section 12 of the connecting ring is compressed.

Working principle: When using the refrigeration device pipeline connection structure and the evaporator pipeline connection structure, first, insert the inner tube connection section 21 at the front of the device pipeline 2 to the outer tube connection section at the front end of the evaporator tube 3 In the lumen of 31, the sealing liquid 4 is dropped on the outer peripheral wall of the inner intubation connection section 21 at the mouth end of the outer casing connection section 31, so that the sealing liquid 4 automatically flows through the capillary effect and fills the inner peripheral wall of the outer casing connection section 31. In the fitting gap with the outer peripheral wall of the connecting section 21 of the inner cannula, and in order to ensure a good capillary effect, the connecting ring 1 is moved along the pipeline and is tightly sleeved on the connecting section 31 of the outer casing in the direction of the connecting section 31 of the outer casing. Then, use the hydraulic pliers 5 to move the connecting ring compression sealing section 12 to the outer peripheral wall of the outer casing connecting section 31, and make the outer casing connecting section 31 port beyond the connecting ring compression section 12 The distance from the end face of the 12 is not less than 1mm to ensure that the connecting ring is compressed After the sealing section 12 is compressed, the outer sleeve and the inner intubation connecting section 21 are compressed and overlapped in the circumferential direction, and the structure is simple and easy to install.

Finally, it should be noted that the above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still The technical solutions described in the foregoing embodiments can be modified, or some technical features thereof can be equivalently replaced, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included. within the protection scope of the present invention.

Claims (6)

1. Refrigerating plant pipeline connection structure and evaporimeter pipeline connection structure, annotate material device (6), evaporimeter (7) including go-between (1), device pipeline (2), sealed liquid, its characterized in that: the device comprises a connecting ring (1), a device pipeline (2), a sealing liquid injection device (6) and an evaporator (7), wherein the device pipeline (2) is positioned at two ends of the evaporator (7);

the evaporator (7) comprises an evaporator pipeline (3), two ends of the evaporator pipeline (3) are connected with the device pipeline (2) in an embedded mode, and the connecting ring (1) is sleeved between the device pipeline (2) and the evaporator pipeline (3);

the connecting ring (1) is provided with a special hydraulic clamp (5);

and sealing liquid (4) is arranged in the sealing liquid injection device (6).

2. A refrigerating apparatus piping connection structure and an evaporator piping connection structure as recited in claim 1, wherein: the evaporator pipeline (3) comprises an outer sleeve connecting section (31), a compression joint section (32), a connection limiting part (33), an evaporator air return pipe connecting end (34) and an evaporator capillary connecting end (35), the connecting ring (1) is sleeved on the device pipeline (2) to be connected, and the device pipeline (2) comprises an inner inserting pipe connecting section (21).

3. A refrigerating apparatus piping connection structure and an evaporator piping connection structure as recited in claim 2, wherein: and a gap between the outer sleeve connecting section (31) and the inner inserting tube connecting section (21) is filled with sealing liquid (4), and a circumferential compression superposition seal is formed between the outer sleeve connecting section (31) and the inner inserting tube connecting section (21).

4. A refrigerating apparatus piping connection structure and an evaporator piping connection structure as recited in claim 1, wherein: the connecting ring (1) comprises a connecting ring conical guide section (11) and a connecting ring compression sealing section (12), wherein the aperture of the front end of the connecting ring conical guide section (11) is larger than the outer tube diameter of the outer tube connecting section (31), and the aperture of the connecting ring compression sealing section (12) is larger than the outer tube diameter of the inner tube connecting section (21) and smaller than the outer tube diameter of the outer tube connecting section (31).

5. A refrigerating apparatus piping connection structure and an evaporator piping connection structure as recited in claim 2, wherein: the inner intubation connection section (21) is placed horizontally or obliquely downwards.

6. A refrigerating apparatus piping connection structure and an evaporator piping connection structure as recited in claim 2, wherein: the connecting ring (1) moves along the pipeline and is tightly sleeved on the outer sleeve connecting section (31) towards the outer sleeve connecting section (31).

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