CN111255968A - Butt joint assembly, oil removal device and large-scale air conditioner heat exchanger - Google Patents

Abstract

The present application provides a docking assembly, a degreasing device and a large air conditioner heat exchanger. The butt assembly is used for butt joint between a first pipe and a second pipe. The butt assembly includes a connecting head, the connecting head is sleeved on the end of the first pipe, and the first pipe is connected to the first pipe through the connecting head. The second pipe is connected in butt joint; the connecting head is partially inserted into the second pipe, and the contact surface between the connecting head and the second pipe where the connecting head is inserted is set as a tapered surface. A connector with a tapered surface is sleeved at the end of the first pipe, which can adapt to the butt joint of second pipes of different diameters, and because the butt joint surface is tapered, it is convenient for the two to be inserted into each other, and the docking process can be quickly Finish.

Description

Docking assemblies, degreasing units and large air conditioner heat exchangers

technical field

The application belongs to the technical field of air conditioners, and in particular relates to a docking assembly, a degreasing device and a large air conditioner heat exchanger.

Background technique

The fins and copper tubes of the air-conditioning heat exchanger are integrated through tube expansion. During the process of tube expansion, volatile oil needs to be added for lubrication to reduce equipment wear, but the volatile oil must be removed in time before the finished product to avoid ant nest corrosion and system leakage. . At present, there are two main methods for degreasing heat exchangers: direct-fired drying and degreasing and vacuum infrared drying. Oil removal method: The compressed air is centrally heated by the heater and then split, and is introduced into each heat exchange tube by the butt sealing device at the inlet end, so that the volatile oil inside the pipe is vaporized and blown out to achieve oil removal; and then guided by the butt sealing device at the recovery end And confluence to the recovery mechanism to realize the recovery and reuse of volatile oil; how to realize the butt sealing of the heat source gas circuit and the copper pipe circuit is a major and difficult problem of the new oil removal method.

SUMMARY OF THE INVENTION

Therefore, the technical problem to be solved by the present application is to provide a docking assembly, an oil removal device and a large air conditioner heat exchanger, which can quickly complete the docking of two pipes.

In order to solve the above problems, the present application provides a butt assembly for the butt of a first pipe and a second pipe, the butt assembly includes a connecting head, the connecting head is sleeved on the end of the first pipe, so The first pipe is connected to the second pipe through the connecting head; the connecting head is partially inserted in the second pipe, and the contact surface of the connecting head and the second pipe is inserted into the pipe. for the conical surface.

Preferably, the connector comprises a silica gel block.

Preferably, the docking assembly further includes an elastic assembly, the elastic assembly is sleeved on the first pipe or/and the second pipe; The elastic force is applied to make the connection head and the second pipeline tightly connected.

Preferably, the elastic assembly includes a fixing base and an elastic member, one end of the elastic member abuts on the fixing base, and the other end abuts on the first pipe or/and the second pipe.

Preferably, the elastic assembly further includes a sliding sleeve, and the sliding sleeve is arranged between the elastic member and the fixing seat.

According to another aspect of the present application, there is provided an oil removal device comprising the docking assembly as described above.

Preferably, the first pipe is a ventilation pipe, a limiting protrusion is provided on the outer wall of the end portion of the first pipe, and the connecting head covers the limiting protrusion.

Preferably, a positioning block is further provided on the outer wall of the ventilation pipe, one end of the connecting head abuts the positioning block, and the positioning block restricts the connecting head to move away from the limit along the axial direction of the ventilation pipe. Move in the direction of the bulge.

Preferably, there are two first pipes, which are respectively butted on both ends of the second pipe.

According to yet another aspect of the present application, a large-scale air-conditioning heat exchanger is provided, comprising the above-mentioned docking assembly or the above-mentioned oil removal device.

The application provides a docking assembly for docking a first pipeline and a second pipeline. The docking component includes a connecting head, and the connecting head is sleeved on the end of the first pipeline. The first pipeline The connecting head is connected with the second pipeline through the connecting head; the connecting head is partially inserted into the second pipeline, and the contact surface between the connecting head and the second pipeline is set as a tapered surface . A connector with a tapered surface is sleeved at the end of the first pipe, which can adapt to the butt joint of second pipes of different diameters, and because the butt joint surface is tapered, it is convenient for the two to be inserted into each other, and the butt joint process can be quickly Finish.

Description of drawings

FIG. 1 is a schematic structural diagram of a docking assembly according to an embodiment of the present application.

Reference numerals are indicated as:

1. The first pipe; 11. The limit protrusion; 12. The positioning block; 2. The second pipe; 3. The silica gel block; 31. The spring; 32. The sliding sleeve;

Detailed ways

Referring to FIG. 1 , according to an embodiment of the present application, a docking assembly is used for docking a first pipe 1 and a second pipe 2 . The butt assembly includes a connecting head, and the connecting head is sleeved on the first pipe. On the end of a pipe 1, the first pipe 1 is connected to the second pipe 2 through the connecting head; the connecting head is partially inserted into the second pipe 2, and the connecting head is connected to the second pipe 2. The contact surface where the second pipe 2 is inserted is set as a tapered surface.

The first pipe 1 and the second pipe 2 are butted together, a connecting head is sleeved on the end of the first pipe 1, and a part of the connecting head is inserted into the second pipe 2, wherein the outer peripheral surface of the connecting head is the contact surface, or the second pipe 2 is inserted into the connector, the end face of the connector is provided with a concave contact surface, and the above two contact surfaces are both conical surface structures, which can be inserted quickly, and the connector can be connected with a variety of second pipes with different inner diameters 2. docking.

In some embodiments, the connector includes a silicone block 3 .

Using the silica gel block 3 as the connecting head can not only be conveniently sleeved on the end of the first pipe 1 , but also form a buffer when the first pipe 1 and the second pipe 2 are butted without causing damage to the pipes.

In some embodiments, the docking component further includes an elastic component, which is sleeved on the first pipe 1 or/and the second pipe 2; the elastic component applies elastic force to the first pipe 1 or/and the second pipe 2, so that The connection head is tightly connected with the second pipeline 2 .

Through the additional elastic components, the sealing strength of the two pipes can be provided, and the force during butting can be buffered at the same time.

In a specific structure, the elastic assembly includes a fixing base 33 and an elastic piece, one end of the elastic piece is connected to the fixing base 33 , and the other end is connected to the first pipe 1 or/and the second pipe 2 .

In some embodiments, the elastic component further includes a sliding sleeve 32 , and the sliding sleeve 32 is provided between the elastic member and the fixing base 33 .

According to another embodiment of the present application, a degreasing device includes the docking assembly as described above.

In some embodiments, the first pipe 1 is a ventilation pipe, a limiting protrusion 11 is provided on the outer wall of the end portion of the ventilation pipe, and the connecting head covers the limiting protrusion 11 .

A limit protrusion 11 is provided at the end of the first pipe 1 , and the connecting head covers the limit protrusion 11 , which can prevent the connecting head from falling off the first pipe 1 and improve the connection between the connecting head and the first pipe 1 . strength.

In some embodiments, the outer wall of the ventilation pipe is further provided with a positioning block 12 , one end of the connecting head abuts the positioning block 12 , and the positioning block 12 restricts the connecting head from moving upward along the axial direction of the ventilation pipe away from the limiting protrusion 11 .

A fixing block is arranged on the outer wall of the first pipe 1 to prevent the connection head from being deformed during the process of inserting the second pipe 2 , so that the tight connection with the second pipe 2 cannot be achieved.

Preferably, there are two first pipes 1 , which are respectively butted on both ends of the second pipe 2 .

In the oil removal device, the oil-containing second pipeline 2 is usually cleaned. Both ends of the second pipeline 2 are connected to the first pipeline 1. One first pipeline 1 is used as an air supply pipeline, and the other first pipeline 1 is used as a return air duct.

In this oil removal device, the tapered silicone block 3 is connected to the bell mouth of the copper pipe, and can meet the butt connection of the bell mouths of different pipe diameters; the compression spring 31 applies a certain pressure to the silicone block 3 to make it well sealed with the bell mouth, and Tolerate the difference in length of copper pipe.

According to yet another embodiment of the present application, a large-scale air-conditioning heat exchanger includes the above-mentioned docking assembly or the above-mentioned oil removal device.

Those skilled in the art can easily understand that, under the premise of no conflict, the above embodiments can be combined and superimposed freely.

The above descriptions are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection of the present application. within the range. The above are only the preferred embodiments of the present application. It should be pointed out that for those skilled in the art, without departing from the technical principles of the present application, several improvements and modifications can also be made. These improvements and modifications It should also be regarded as the protection scope of this application.

Claims (10)

1. A docking assembly for the docking of a first pipe (1) and a second pipe (2), characterized in that the butt assembly comprises a connecting head, and the connecting head is sleeved on the first pipe (1) ), the first pipe (1) is connected with the second pipe (2) through the connecting head; the connecting head is partially inserted into the second pipe (2), so The contact surface where the connecting head and the second pipe (2) are inserted is set as a tapered surface. 2. The docking assembly according to claim 1, wherein the connecting head comprises a silicone block (3). 3. The docking assembly according to claim 1 or 2, characterized in that, the docking assembly further comprises an elastic assembly, the elastic assembly is sleeved on the first pipe (1) or/and the second pipe (2) ); the elastic component applies elastic force to the first pipe (1) or/and the second pipe (2), so that the connecting head and the second pipe (2) are tightly connected. 4. The docking assembly according to claim 3, wherein the elastic assembly comprises a fixing seat (33) and an elastic member, one end of the elastic member abuts on the fixing seat (33), and the other end abuts on the fixing seat (33) connected to the first pipe (1) or/and the second pipe (2). 5. The docking assembly according to claim 4, characterized in that, the elastic assembly further comprises a sliding sleeve (32), and the sliding sleeve (32) is provided on the elastic member and the fixing seat (33) between. 6. A degreasing device, characterized in that it comprises the docking assembly according to any one of claims 1-5. 7. The oil removal device according to claim 6, characterized in that, the first pipe (1) is a ventilation pipe, and a limit protrusion (11) is provided on the outer wall of the end of the first pipe (1) , the connecting head covers the limiting protrusion (11). 8 . The oil removal device according to claim 7 , wherein a positioning block ( 12 ) is further provided on the outer wall of the ventilation pipe, one end of the connecting head abuts the positioning block ( 12 ), and the positioning block ( 12 ) The block (12) restricts the movement of the connecting head in the direction of moving away from the limiting protrusion (11) in the axial direction of the ventilation pipe. 9. The oil removal device according to claim 6, 7 or 8, characterized in that, there are two first pipes (1), which are respectively butted at both ends of the second pipe (2). 10. A large-scale air conditioner heat exchanger, characterized in that it comprises the docking assembly according to any one of claims 1-5 or the degreasing device according to any one of claims 6-9.

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