阅读说明：本技术 制冷管路的密封方法及制冷管路 (Refrigeration pipeline sealing method and refrigeration pipeline ) 是由 管毓贤 魏绍军 程峰 孙贤 许贵琳 胡凤驰 陈立敬 于 2021-09-15 设计创作，主要内容包括：本发明提供了一种制冷管路的密封方法及制冷管路,制冷管路的密封方法包括：将密封装置包覆于第一管路的对接处,其中,密封装置至少具有储胶腔,储胶腔用于包覆于第一管路的对接处。从储胶腔的开口处向密封装置内注入密封胶。将密封装置向远离对接处的方向移动以露出对接处。将密封装置向对接处的方向移动以使密封装置包覆于第二管路与第一管路的对接处。由于,第一管路和第二管路之间充满密封胶；密封装置和第一管路之间充满密封胶,密封装置和第二管路之间充满密封胶。因此,第一管路和第二管路的对接处获得双重的密封防护,密封效果良好。本发明的制冷管路采用密封装置和密封胶密封,解决目前火焰钎焊密封不安全等技术问题。(The invention provides a sealing method of a refrigeration pipeline and the refrigeration pipeline, wherein the sealing method of the refrigeration pipeline comprises the following steps: and coating the sealing device at the butt joint of the first pipeline, wherein the sealing device at least is provided with a glue storage cavity which is used for coating the butt joint of the first pipeline. And injecting sealant into the sealing device from the opening of the sealant storage cavity. The sealing device is moved away from the abutment to expose the abutment. And moving the sealing device towards the direction of the butt joint so that the sealing device is coated at the butt joint of the second pipeline and the first pipeline. Because the sealant is filled between the first pipeline and the second pipeline; sealant is filled between the sealing device and the first pipeline, and sealant is filled between the sealing device and the second pipeline. Therefore, the butt joint of the first pipeline and the second pipeline obtains double sealing protection, and the sealing effect is good. The refrigeration pipeline is sealed by adopting a sealing device and a sealant, and the technical problems of unsafe flame brazing sealing and the like in the prior art are solved.)

1. A method of sealing a refrigerant line, comprising:

coating a sealing device at the butt joint of a first pipeline, wherein the sealing device at least is provided with a glue storage cavity, and the glue storage cavity is used for coating the butt joint of the first pipeline;

injecting sealant into the sealing device from the opening of the sealant storage cavity;

moving the sealing device away from the interface to expose the interface;

sleeving a second pipeline on the butt joint part;

and moving the sealing device to the direction of the joint so as to coat the joint of the second pipeline and the first pipeline with the sealing device.

2. The method of sealing a refrigeration circuit as recited in claim 1 wherein the step of cladding the sealing device at the juncture of the first circuit includes:

and coating the sealing device at the butt joint of the first pipeline, wherein at least the end part of the butt joint extends out of the sealing device.

3. The method for sealing a refrigeration circuit as set forth in claim 1, wherein said step of injecting sealant into said sealing device from said opening of said sealant storage chamber is followed by the steps of:

rotating the sealing device to make the surface of the first pipeline be full of glue; thereafter the step of moving the sealing device away from the abutment to expose the abutment is performed.

4. The method of claim 1, wherein said step of sleeving said second tubing over said interface is followed by the steps of:

and applying pressure to the butt joint part sleeved on the second pipeline so as to prevent the first pipeline from sliding out of the second pipeline.

5. The method of sealing a refrigeration circuit as set forth in claim 1 wherein said step of moving said sealing device in the direction of said interface to encase said sealing device at the interface of said second circuit with said first circuit further includes:

and injecting sealant into the sealing device from the opening of the sealant storage cavity.

6. A refrigeration circuit, comprising:

a first pipeline for the first liquid to be pumped,

the second pipeline is sleeved at the butt joint of the first pipeline;

a sealing device, comprising:

the sealing device comprises two sealing pieces, wherein the two sealing pieces are arranged to be capable of being matched and buckled to at least form a glue storage cavity, the glue storage cavity is used for being coated at the butt joint of the second pipeline, an opening for injecting glue is formed in the glue storage cavity, and sealing glue is filled between the first pipeline and the second pipeline.

7. Refrigeration circuit according to claim 6,

the two sealing elements are arranged to be matched, buckled and molded into a first cylinder, a glue storage cavity and a second cylinder which are connected in sequence; the first cylinder, the glue storage cavity and the second cylinder are sequentially coated on the first pipeline, the butt joint part and the second pipeline; the inner diameter of the first cylinder is matched with the outer diameter of the first pipeline, and the inner diameter of the second cylinder is matched with the outer diameter of the second pipeline.

8. Refrigeration circuit according to claim 6,

the sealing device is made of transparent materials so as to observe the state of the sealing glue.

9. Refrigeration circuit according to claim 6,

the pipe wall of the first pipeline protrudes along the radial direction to form at least one first sealing ring, the pipe wall of the second pipeline protrudes along the radial direction to form at least one second sealing ring, and when the second pipeline is sleeved at the butt joint of the first pipeline, the first sealing ring is accommodated in the second sealing ring corresponding to the first sealing ring.

10. Refrigeration circuit according to claim 9,

the number of the first sealing rings is multiple, and the first sealing rings are distributed along the axial direction of the first pipeline; the number of the second sealing rings is multiple and is distributed along the axial direction of the second pipeline.

Technical Field

The invention relates to the field of refrigeration, in particular to a sealing method of a refrigeration pipeline and the refrigeration pipeline.

Background

The refrigeration system of existing refrigeration devices generally comprises: the refrigerating system comprises a compressor, a condenser, a capillary tube, an evaporator and the like, wherein all the parts are connected through a refrigerating pipeline to form a sealed system, and a refrigerant is subjected to gas-liquid change in the sealed system to realize the refrigerating effect. For the whole system, the sealing performance is crucial, and once the refrigerant leaks, the refrigeration performance is affected and certain potential safety hazard is possibly brought.

In the existing refrigeration system, the refrigeration pipelines are generally sealed by flame brazing, the process has high-level requirements on operators, and belongs to special posts in the production process, but the production line is generally operated by a plurality of workers, so that the stability and the consistency of the product quality cannot be ensured, and more importantly, the welding needs to use fire, and certain potential safety hazards exist.

Disclosure of Invention

An object of the present invention is to provide a method for sealing a refrigeration pipeline and a refrigeration pipeline, which are used to solve the above technical problems.

In particular, the present invention provides a method of sealing a refrigeration circuit, comprising:

coating a sealing device at the butt joint of the first pipeline, wherein the sealing device at least is provided with a glue storage cavity which is used for coating the butt joint of the first pipeline;

injecting sealant into the sealing device from the opening of the sealant storage cavity;

moving the sealing device away from the butt joint to expose the butt joint;

sleeving the second pipeline on the butt joint part;

and moving the sealing device towards the direction of the butt joint so that the sealing device is coated at the butt joint of the second pipeline and the first pipeline.

Optionally, the step of wrapping the sealing device at the interface of the first pipeline comprises:

and coating the sealing device at the butt joint of the first pipeline, wherein at least the end part of the butt joint extends out of the sealing device.

Optionally, the step of injecting the sealant into the sealing device from the opening of the sealant storage cavity includes:

rotating the sealing device to enable the surface of the first pipeline to be fully coated with glue; thereafter the step of moving the sealing device away from the abutment to expose the abutment is performed.

Optionally, the step of sleeving the second pipeline on the butt joint comprises:

and applying pressure to the butt joint part sleeved on the second pipeline so as to prevent the first pipeline from sliding out of the second pipeline.

Optionally, the step of moving the sealing device to the direction of the joint to coat the sealing device at the joint of the second pipeline and the first pipeline further includes:

and injecting sealant into the sealing device from the opening of the sealant storage cavity.

According to a second aspect of the invention, there is also provided a refrigeration circuit comprising:

a first pipeline for the first liquid to be pumped,

the second pipeline is sleeved at the butt joint of the first pipeline;

a sealing device, comprising:

two sealing members, two sealing members set up to can the adaptation lock in order to form at least and store up gluey chamber, store up gluey chamber and be used for the cladding in the butt joint department of second pipeline, store up gluey chamber and offer the opening that is used for the injecting glue, fill sealed glue between sealing device and first pipeline and the second pipeline.

Optionally, the two sealing elements are arranged to be matched and buckled into a first cylinder, a glue storage cavity and a second cylinder which are connected in sequence; the first cylinder, the glue storage cavity and the second cylinder are sequentially coated on the first pipeline, the butt joint part and the second pipeline; the inner diameter of the first cylinder is matched with the outer diameter of the first pipeline, and the inner diameter of the second cylinder is matched with the outer diameter of the second pipeline.

Optionally, the material of the sealing device is transparent to observe the state of the sealant.

Optionally, the pipe wall of the first pipeline protrudes along the radial direction to form at least one first sealing ring, the pipe wall of the second pipeline protrudes along the radial direction to form at least one second sealing ring, and when the second pipeline is sleeved at the butt joint of the first pipeline, the first sealing ring is accommodated in the second sealing ring corresponding to the first sealing ring.

Optionally, the number of the first sealing rings is multiple, and the first sealing rings are distributed along the axial direction of the first pipeline; the number of the second sealing rings is multiple and is distributed along the axial direction of the second pipeline.

The invention provides a sealing method of a refrigeration pipeline and the refrigeration pipeline, wherein the sealing method of the refrigeration pipeline comprises the following steps: and coating the sealing device at the butt joint of the first pipeline, wherein the sealing device at least is provided with a glue storage cavity which is used for coating the butt joint of the first pipeline. And injecting sealant into the sealing device from the opening of the sealant storage cavity. The sealing device is moved away from the abutment to expose the abutment. And moving the sealing device towards the direction of the butt joint so that the sealing device is coated at the butt joint of the second pipeline and the first pipeline. Because the sealant is filled between the first pipeline and the second pipeline; sealant is filled between the sealing device and the first pipeline, and sealant is filled between the sealing device and the second pipeline. Therefore, the butt joint of the first pipeline and the second pipeline obtains double sealing protection, and the sealing effect is good. The refrigeration pipeline of the invention is sealed by adopting the sealing device and the sealant, thereby solving the technical problems of unsafe sealing, high operation requirement and the like of the existing flame brazing.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic diagram of a refrigeration circuit according to one embodiment of the present invention;

FIG. 2 is a top view of a sealing arrangement for a refrigeration circuit according to one embodiment of the present invention;

FIG. 3 is a side view of a sealing arrangement for a refrigeration circuit according to one embodiment of the present invention;

FIG. 4 is a schematic illustration of the interfacing of a first circuit and a second circuit of a refrigeration circuit according to one embodiment of the present invention;

FIG. 5 is an exploded schematic view of a first circuit and a second circuit of a refrigeration circuit according to one embodiment of the present invention;

FIG. 6 is a flow chart of a method of sealing a refrigerant line according to one embodiment of the present invention;

fig. 7 is a flowchart of a sealing method of a refrigeration line according to another embodiment of the present invention.

Detailed Description

FIG. 1 is a schematic diagram of a refrigeration circuit according to one embodiment of the present invention; FIG. 2 is a top view of a sealing arrangement for a refrigeration circuit according to one embodiment of the present invention; FIG. 3 is a side view of a sealing arrangement for a refrigeration circuit according to one embodiment of the present invention; FIG. 4 is a schematic illustration of the interfacing of a first circuit and a second circuit of a refrigeration circuit according to one embodiment of the present invention; FIG. 5 is an exploded schematic view of a first circuit and a second circuit of a refrigeration circuit according to one embodiment of the present invention; FIG. 6 is a flow chart of a method of sealing a refrigerant line according to one embodiment of the present invention; fig. 7 is a flowchart of a sealing method of a refrigeration line according to another embodiment of the present invention.

The present embodiment provides a refrigeration circuit including a first circuit 110, a second circuit 120, and a sealing device 130. The refrigeration pipeline is applied to refrigeration equipment, and the refrigeration equipment can be a refrigerator, an ice chest and the like.

As shown in fig. 1, the second pipeline 120 is sleeved at the joint of the first pipeline 110, and the sealing device 130 covers the joint of the first pipeline 110 and the second pipeline 120. As shown in fig. 1, in the present embodiment, the first pipe 110 and the second pipe 120 are cylindrical, but this is merely exemplary, and the shapes of the first pipe 110 and the second pipe 120 are not particularly limited. In the present embodiment, the inner diameter of the second pipeline 120 is slightly larger than the outer diameter of the first pipeline 110, but this is merely exemplary, and the sizes of the first pipeline 110 and the second pipeline 120 are not particularly limited, but the inner diameter of the butt end of the second pipeline 120 is the same as or slightly larger than the outer diameter of the butt end of the first pipeline 110.

The sealing device 130 includes two sealing members 132, the two sealing members 132 are configured to be fittingly fastened to form at least a glue storage chamber 131, and the glue storage chamber 131 is used for covering the joint of the second pipeline 120. In this embodiment, as shown in fig. 1 to 3, the sealing elements 132 are made of plastic, and the two sealing elements 132 are integrally formed, wherein one sealing element 132 can be turned over relative to the other sealing element 132. Each seal 132 is prepared by forming a hemispherical cavity and a groove 134 at the plastic sheet. When the two sealing members 132 are fastened, the two hemispherical cavities are combined oppositely to form the glue storage cavity 131. The groove 134 of one of the sealing members 132 is received in the groove 134 of the other sealing member 132 to snap the two sealing members 132 together, and the structure of the sealing members 132 is simple and easy to manufacture and light in weight. It should be understood that the above-mentioned sealing members 132 are only exemplary and not exclusive, for example, the two sealing members 132 may be independent from each other, and the two sealing members 132 may be fastened by other structures.

The glue storage cavity 131 is provided with an opening 133 for injecting glue, and the sealing device 130, the first pipeline 110 and the second pipeline 120 are filled with sealing glue. The opening 133 of the glue storage cavity 131 may be a hemispherical cavity on any one of the sealing members 132, and the opening 133 is opened, so that the sealing device 130 and the first pipeline 110 are filled with sealant, and the sealing device 130 and the second pipeline 120 are also filled with sealant, so as to seal the first pipeline 110 and the second pipeline 120.

In other embodiments, as shown in fig. 1 to 3, two sealing members 132 are configured to be fittingly fastened and formed as a first cylinder 135, a glue storage chamber 131 and a second cylinder 136 connected in series; the first cylinder 135, the glue storage cavity 131 and the second cylinder 136 are sequentially coated on the first pipeline 110, the butt joint part and the second pipeline 120; the first cylinder 135 has an inner diameter adapted to the outer diameter of the first pipe 110 and the second cylinder 136 has an inner diameter adapted to the outer diameter of the second pipe 120. The inner diameter of the first cylinder 135 is matched with the outer diameter of the first pipeline 110, and the inner diameter of the second cylinder 136 is matched with the outer diameter of the second pipeline 120, that is, the first cylinder 135 is tightly attached to the first pipeline 110, and the second cylinder 136 is tightly attached to the second pipeline 120, so that the sealant is prevented from flowing out of the sealant storage bin, and waste and environmental pollution are avoided.

In other embodiments, the material of the sealing device 130 is transparent to observe the state of the sealant. The sealing device 130 is made of transparent material, and it can be observed whether there is any bubble in the sealant, whether the sealant storage bin is full, whether the sealant leaks or not through the transparent sealing device 130. In other embodiments, pigments may be added to the sealant for viewing.

In other embodiments, as shown in fig. 4 to 5, the pipe wall of the first pipe 110 protrudes along the radial direction to form at least one first sealing ring, the pipe wall of the second pipe 120 protrudes along the radial direction to form at least one second sealing ring, and when the second pipe 120 is sleeved at the butt joint of the first pipe 110, the first sealing ring is received in the corresponding second sealing ring. Since the first and second sealing rings are protruded in a radial direction of the pipe line, a flow direction of the refrigerant in the pipe line is perpendicular to the first and second sealing rings. The first sealing ring and the second sealing ring have certain blocking effect on leaked refrigerant, and the refrigerant is effectively prevented from leaking.

In other embodiments, the number of the first sealing rings is multiple, and the first sealing rings are distributed along the axial direction of the first pipeline 110; the number of the second sealing rings is plural, and the second sealing rings are distributed along the axial direction of the second pipeline 120. As shown in fig. 4 to 5, the number of the first seal rings is 3, and the number of the second seal rings is also 3. This effectively prevents refrigerant leakage and also prevents air ingress.

As shown in fig. 6, the present embodiment provides a sealing method for a refrigeration pipeline, which includes:

step S602: the sealing device 130 is wrapped at the joint of the first pipeline 110, wherein the sealing device 130 at least has a glue storage cavity 131, and the glue storage cavity 131 is used for wrapping the joint of the first pipeline 110.

The specific shape of the sealing device 130 is not limited, and the shape of the sealing device 130 in the above embodiments is only exemplary, and the sealing device 130 is taken as an example. The sealing device 130 is fastened to at least form a glue storage cavity 131, and the glue storage cavity 131 is located at the joint of the first pipeline 110.

Optionally, sealing device 130 is wrapped around the interface of first conduit 110, with at least the end of the interface extending beyond sealing device 130. The end of the butt joint extends out of the sealing device 130, so that the first pipeline 110 can be effectively prevented from being plugged by the sealant, and the first pipeline 110 is prevented from being blocked. The amount of protrusion of the butt joint is not particularly limited, and at least the end portion may protrude. In some optional embodiments, the first pipeline 110 is sequentially provided with a plurality of first sealing rings, and the joint can extend from the inside of the sealing device 130 to the first sealing ring closest to the end, and the first sealing ring can further prevent the sealant from leaking to the first pipeline 110, so as to avoid the blockage of the first pipeline 110.

Step S604: sealant is injected into the sealing device 130 from the opening 133 of the sealant storage chamber 131.

At this time, since the glue storage cavity 131 is coated at the butt joint of the first pipeline 110, the sealant is injected into the glue storage cavity 131, and the butt joint of the first pipeline 110 is stained with the sealant, so that the sealant is injected into the glue storage cavity 131 in this step to coat the butt joint of the first pipeline 110 with the sealant. The joint of the first pipeline 110 is coated with the sealant, and the second pipeline 120 is sleeved on the first pipeline 110, so that the sealing effect is better, and the refrigerant is prevented from leaking.

Optionally, sealing device 130 is rotated to coat the surface of first conduit 110 with glue. The rotary sealing device 130 can effectively prevent the surface of the first pipeline 110 from being not coated with the glue due to the existence of the air bubbles in the sealing device 130, that is, the surface of the first pipeline 110 can be prevented from being coated with the sealing glue.

Step S606: the sealing device 130 is moved away from the interface to expose the interface.

Because the butt joint of the first pipeline 110 is located in the glue storage cavity 131, the sealing device 130 moves in the direction away from the butt joint, so that the butt joint can be exposed, and the second pipeline 120 can be conveniently sleeved on the butt joint.

Step S608: the second pipeline 120 is sleeved on the butt joint.

At this time, the joint between the second pipeline 120 and the first pipeline 110 is filled with the sealant, so that the first pipeline 110 and the second pipeline 120 have good sealing effect.

Optionally, pressure is applied to the abutting portion of the second pipeline 120, so that the first pipeline 110 does not slide out of the second pipeline 120. After the second pipeline 120 is sleeved on the first pipeline 110, the sealant between the first pipeline 110 and the second pipeline 120 is not cured, and the first pipeline 110 and the second pipeline 120 still generate relative displacement. Applying pressure to the interface of the second tube 120 secures the second tube 120 to the first tube 110, preventing movement of the second tube 120 relative to the first tube 110 during subsequent processing steps.

Step S610: the sealing device 130 is moved toward the joint so that the sealing device 130 covers the joint of the second pipeline 120 and the first pipeline 110.

And moving the sealing device 130 to the joint of the second pipeline 120 and the first pipeline 110, so that the sealing device 130 and the first pipeline 110 are filled with the sealing glue, the sealing device 130 and the second pipeline 120 are filled with the sealing glue, and further the joint of the first pipeline 110 and the second pipeline 120 is sealed.

Optionally, sealant is injected into the sealing device 130 again from the opening 133 of the sealant storage chamber 131.

Since the sealing device 130 moves back and forth relative to the first pipeline 110 and the second pipeline 120, the sealant in the sealing device 130 may be lost, and the sealant is injected into the sealing device 130 again, so as to further ensure the sealing effect of the first pipeline 110 and the second pipeline 120.

In summary, in the refrigeration pipeline prepared by the above refrigeration pipeline preparation method, the sealant is filled between the first pipeline 110 and the second pipeline 120; the sealing device 130 and the first pipeline 110 are filled with sealing glue, and the sealing device 130 and the second pipeline 120 are filled with sealing glue. The joint of the first pipeline 110 and the second pipeline 120 obtains double sealing protection, and the sealing effect is good. The refrigeration pipeline of the invention is sealed by adopting the sealing device 130 and the sealant, thus solving the technical problems of unsafe sealing, high operation requirement and the like of the existing flame brazing.

As shown in fig. 7, this embodiment can also be implemented as follows.

Step S702: sealing device 130 is wrapped around the butt joint of first pipeline 110, and at least the end of the butt joint extends out of sealing device 130.

Step S704: sealant is injected into the sealing device 130 from the opening 133 of the sealant storage chamber 131.

Step S706: the sealing device 130 is rotated to coat the surface of the first pipe 110 with glue.

Step S708: the sealing device 130 is moved away from the interface to expose the interface.

Step S710: the second pipeline 120 is sleeved on the butt joint.

Step S712: pressure is applied to the abutting portion of the second pipeline 120 so that the first pipeline 110 does not slide out of the second pipeline 120.

Step S714: the sealing device 130 is moved toward the joint so that the sealing device 130 covers the joint of the second pipeline 120 and the first pipeline 110.

Step S716: sealant is injected into the sealing device 130 again from the opening 133 of the sealant storage chamber 131.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.