CN214199289U - Push-expansion type heat exchanger - Google Patents

Abstract

The utility model provides a push away expanded heat exchanger, including import pipe, copper pipe and pressure dispersion subassembly, the import pipe is including the necking down section and locate the flaring section at necking down section both ends, be equipped with the toper changeover portion between necking down section and the flaring section, the copper pipe is inserted and is located import pipe front end, the pressure dispersion subassembly include snap ring and lock nut, be equipped with on the outer wall of copper pipe with lock nut complex external screw thread, be equipped with the opening that makes things convenient for the cover to advance the necking down section on the snap ring, the snap ring diameter is less than flaring section diameter, the snap ring internal face be with toper changeover portion complex conical surface, be connected with many between snap ring and the lock nut and connect the rope, it evenly sets up along snap ring and lock nut outer wall circumference to connect the rope. The utility model provides a pair of push away expanded heat exchanger adopts inlet and outlet pipe to carry out the throat earlier, carry out the flaring again, obtains throat section and flaring section, reduces the aperture through the throat section, realizes the function of making an uproar, strengthens the whole market competition of its goods.

Description

Push-expansion type heat exchanger

Technical Field

The utility model relates to a heat exchanger technical field especially relates to a push away expanded heat exchanger.

Background

The heat exchanger is an important part in four major refrigeration parts, and low-temperature condensed liquid is subjected to heat exchange with external air through the evaporator, and is gasified to absorb heat, so that the refrigeration effect is achieved.

When observing traditional finned evaporator, discover that the evaporator mainly carries out the optimization of throttling, making an uproar that falls through the reservoir end of its outlet pipe, does not carry out the complete excavation to the throughput of inlet and outlet end, leads to the frequent great problem of refrigerator and like preparation noise that appears in market.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: in order to overcome the defects of high flow speed and large noise of the condensate in the heat exchange tube of the heat exchanger in the prior art, the utility model provides a push-expansion heat exchanger.

The utility model provides a technical scheme that its technical problem will adopt is: the utility model provides a push away expanded heat exchanger, includes import pipe, copper pipe and pressure dispersion subassembly, the import pipe is including the necking down section and locate the flaring section at necking down section both ends, be equipped with the toper changeover portion between necking down section and the flaring section, the copper pipe is inserted and is located the import pipe front end, the pressure dispersion subassembly includes snap ring and lock nut, be equipped with on the outer wall of copper pipe with lock nut complex external screw thread, be equipped with the opening that makes things convenient for the cover to advance the necking down section on the snap ring, the snap ring diameter is less than flaring section diameter, the snap ring internal face be with toper changeover portion complex conical surface, be connected with many between snap ring and the lock nut and connect the rope, it evenly sets up along snap ring and lock nut outer wall circumference to connect the rope.

The inlet and outlet pipes of the heat exchange pipe of the heat exchanger are firstly necked and then flared to obtain a necked section and a flared section, and the aperture is reduced through the necked section to realize the functions of throttling and noise reduction, so that the integrated heat exchange pipe is obtained, argon-free welding point connection is realized, the leakage risk is reduced, and the overall market competitiveness of the product is enhanced; the flaring section at the front end of the inlet pipe is welded with the copper pipe, and in order to prevent leakage caused by overlarge pressure of a welding point, a pressure dispersion assembly is arranged to distribute the pressure of the welding point; the snap ring passes through the cover behind the opening card inlet section and establishes on the inlet section, lock nut and copper pipe thread fit, be connected with many between snap ring and the lock nut and connect the rope, lock nut twists when moving to the direction of keeping away from the snap ring along the external screw thread on the copper pipe, snap ring internal face and toper changeover portion cooperation, because the reason of frictional force, the snap ring can not follow lock nut rotatoryly, each is connected the rope and is tightened gradually and evenly twined on copper pipe and import outside the wall, until lock nut locking, copper pipe and import pipe welding point pressure are dispersed this moment, can prolong welding life greatly, reduce the leakage risk.

Furthermore, in order to increase the friction force between the conical transition section and the clamping ring, a layer of rubber pad is arranged on the inner wall surface of the clamping ring.

Further, in order to increase the friction force between the conical transition section and the clamping ring, the surface of the conical transition section is subjected to sanding treatment.

Furthermore, in order to prevent that lock nut from receiving the influence of connecting rope pulling force in long-term use, to pull ring direction rotary motion becoming loose, lead to pressure dispersion subassembly effect to become invalid, one side that lock nut is close to the snap ring is equipped with the counter lock nut with copper pipe external screw thread fit. The back locking nut is locked at one side of the locking nut close to the clamping ring to fix the position of the locking nut.

Further, in order to prevent that the snap ring from being influenced by the opening, atress is uneven when leading to pressure dispersion, influences life, the snap ring opening goes out to be equipped with annular connecting plate, the connecting plate radius is the same with the snap ring radius, the connecting plate passes through the bolt with the snap ring and can dismantle the connection. After the snap ring passes through the notch card inlet section, a circular ring is complemented with the snap ring through the connecting plate, so that the stress of the snap ring is ensured to be even, and the snap ring cannot deform in the long-term use process.

The utility model has the advantages that: the utility model provides a pair of push away bloated formula heat exchanger adopts and imports and exports the pipe and carry out the throat earlier, carry out the flaring again, obtains the throat section and the flaring section, reduces the aperture through the throat section, realizes the throttle and falls the function of making an uproar, and copper pipe and import and export set up pressure dispersion subassembly between the pipe, pressure between dispersion copper pipe and the import and export pipe welding point, extension welding point life reduces the leakage risk.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;

FIG. 2 is an enlarged schematic view of A of FIG. 1;

FIG. 3 is a schematic view of the structure of the inlet tube;

fig. 4 is a schematic structural view of the snap ring.

In the figure: 1. the device comprises an inlet pipe, 1-1 parts of a necking section, 1-2 parts of an expanding section, 1-3 parts of a conical transition section, 2 parts of a copper pipe, 3 parts of a clamping ring, 3-1 parts of a notch, 4 parts of a locking nut, 5 parts of a connecting rope, 6 parts of an anti-locking nut, 7 parts of a connecting plate.

Detailed Description

The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.

As shown in fig. 1-4, the push-expansion heat exchanger of the present invention comprises an inlet tube 1, a copper tube 2 and a pressure dispersion assembly, wherein the inlet tube 1 comprises a necking section 1-1 and an expanding section 1-2 arranged at both ends of the necking section 1-1, a tapered transition section 1-3 is arranged between the necking section 1-1 and the expanding section 1-2, the copper tube 2 is inserted at the front end of the inlet tube 1, the pressure dispersion assembly comprises a snap ring 3 and a locking nut 4, an external thread matched with the locking nut 4 is arranged on the outer wall surface of the copper tube 2, an opening 3-1 for conveniently sleeving the necking section 1-1 is arranged on the snap ring 3, the diameter of the snap ring 3 is smaller than that of the expanding section 1-2, the inner wall surface of the snap ring 3 is matched with the tapered transition section 1-3, a plurality of connecting ropes 5 are connected between the snap ring 3 and the locking nut 4, the connecting rope 5 is uniformly arranged along the circumferential direction of the outer wall surfaces of the snap ring 3 and the locking nut 4.

A layer of rubber pad is arranged on the inner wall surface of the snap ring 3, and the surface of the conical transition section 1-3 is subjected to frosting treatment.

And one side of the locking nut 4 close to the snap ring 3 is provided with a counter locking nut 6 matched with the external thread of the copper pipe 2.

An annular connecting plate 7 is arranged at the opening 3-1 of the clamping ring 3, the radius of the connecting plate 7 is the same as that of the clamping ring 3, and the connecting plate 7 is detachably connected with the clamping ring 3 through a bolt.

The working principle is as follows:

an inlet pipe and an outlet pipe of a heat exchange pipe of a heat exchanger are firstly reduced and then flared to obtain a reduced section 1-1 and a flared section 1-2, the aperture is reduced through the reduced section 1-1 to realize the functions of throttling and noise reduction, a copper pipe 2 is inserted in the front end of the inlet pipe 1 and is welded with the inlet pipe 1, a snap ring 3 is sleeved on the reduced section 1-1 through a notch 3-1 clamped in the reduced section 1-1, the taper on the inner wall surface of the snap ring 3 is arranged towards the direction of the copper pipe 2, a locking nut 4 is matched with the external thread of the copper pipe 2, a plurality of connecting ropes 5 are connected between the snap ring 3 and the locking nut 4, when the locking nut 4 is screwed on the copper pipe 2 along the external thread towards the direction far away from the snap ring 3, the rubber pad on the snap ring 3 is attached to the taper transition section 1-3 close to the copper pipe 2, and the snap ring 3 can not rotate along with the locking nut 4 due to the friction force, each is connected rope 5 and is tightened gradually and evenly around establishing on copper pipe 2 and the outer wall of import pipe 1, until lock nut 4 locking, copper pipe 2 and the 1 welding point pressure of import pipe are dispersed on lock nut 4, snap ring 3 and connection rope 5 this moment, can bear or bear the weight of the pressure of copper pipe 2 and the 1 welding point department of import pipe, can prolong greatly weld life, reduce the leakage risk.

Directions and references (e.g., up, down, left, right, etc.) in the present disclosure may be used solely to aid in the description of the features in the figures. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (5)

1. A push-expansion heat exchanger is characterized in that: the device comprises an inlet pipe (1), a copper pipe (2) and a pressure dispersion assembly, wherein the inlet pipe (1) and the outlet pipe are identical in structure, the inlet pipe (1) comprises a necking section (1-1) and flaring sections (1-2) arranged at two ends of the necking section (1-1), a conical transition section (1-3) is arranged between the necking section (1-1) and the flaring sections (1-2), the copper pipe (2) is inserted at the front end of the inlet pipe (1), the pressure dispersion assembly comprises a clamping ring (3) and a locking nut (4), external threads matched with the locking nut (4) are arranged on the outer wall surface of the copper pipe (2), an opening (3-1) which is convenient to sleeve the necking section (1-1) is formed in the clamping ring (3), and the diameter of the clamping ring (3) is smaller than that of the flaring sections (1-2), the inner wall surface of the clamping ring (3) is a conical surface matched with the conical transition section (1-3), a plurality of connecting ropes (5) are connected between the clamping ring (3) and the locking nuts (4), and the connecting ropes (5) are uniformly arranged along the outer wall surfaces of the clamping ring (3) and the locking nuts (4) in the circumferential direction.

2. A push-and-expand heat exchanger as claimed in claim 1, wherein: and a layer of rubber pad is arranged on the inner wall surface of the snap ring (3).

3. A push-and-expand heat exchanger as claimed in claim 2, wherein: the surface of the conical transition section (1-3) is subjected to sanding treatment.

4. A push-and-expand heat exchanger as claimed in claim 2 or 3, wherein: and one side of the locking nut (4) close to the snap ring (3) is provided with a counter locking nut (6) matched with the external thread of the copper pipe (2).

5. A push-and-expand heat exchanger as claimed in claim 1, wherein: the clamp ring (3) opening (3-1) is provided with an annular connecting plate (7), the radius of the connecting plate (7) is the same as that of the clamp ring (3), and the connecting plate (7) is detachably connected with the clamp ring (3) through a bolt.

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