Capillary connecting pipe with sheath for cooling-water machine

Abstract

The utility model relates to the technical field of connecting pipe devices, in particular to a capillary connecting pipe with a sheath for a cooling-water machine, which comprises a pure copper capillary tube. The horn mouth copper elbow is welded at one end of the pure copper capillary tube; the horn mouth straight joint is welded at the other end of the pure copper capillary tube; the warm upsetting nut is sleeved at the joint of the pure copper capillary tube, the horn mouth copper elbow and the horn mouth straight joint; the two ends of the brass ripple protection tube shell are installed on the horn mouth copper elbow and the horn mouth straight joint respectively, and the pure copper capillary tube is arranged in the brass ripple protection tube shell. The brass corrugated protection tube shell effectively protects the internal pure copper capillary tube, the pure copper capillary tube is prevented from being damaged after being worn for a long time, and the reliability of the cooling-water machine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting pipe devices, in particular to a capillary connecting pipe with a sheath for a chiller. Background Art

[0002] Capillary copper tubes are often used in the refrigeration system of chillers to transmit the pressure at different locations in the system to pressure components such as pressure gauges, pressure switches, pressure sensors and pressure valves.

[0003] The traditional capillary copper tube has a simple structure, consisting only of the capillary tube body and lacking corresponding protection. When used in a chiller, due to the presence of vibrating components such as compressors and water pumps and the complex internal structure of the chiller, the capillary copper tube will come into contact with vibrating components when passing through the chiller. Long-term use will cause the capillary copper tube to break due to friction with related components, or even leakage. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art. The utility model proposes a capillary connecting pipe with a sheath for a chiller, aiming to provide a capillary copper tube assembly that can effectively perform self-protection and can meet the use requirements in the chiller.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a capillary connecting pipe with a sheath for a chiller, comprising:

[0006] Pure copper capillary;

[0007] A bell-mouth copper elbow, wherein the bell-mouth copper elbow is welded to one end of a pure copper capillary;

[0008] A bell-mouth straight connector, wherein the bell-mouth straight connector is welded to the other end of the pure copper capillary;

[0009] A warm upsetting nipple, which is sleeved on the connection between the pure copper capillary and the bell-mouth copper elbow and the bell-mouth straight joint;

[0010] The brass corrugated protective tube shell has two ends respectively mounted on a bell-mouth copper elbow and a bell-mouth straight connector, and the pure copper capillary is placed in the brass corrugated protective tube shell.

[0011] Furthermore, the bell-mouth copper elbow and the bell-mouth straight connector are welded to both ends of the pure copper capillary by copper brazing.

[0012] Furthermore, the bell-mouth straight joint and the bell-mouth copper elbow are fixedly connected with a clamping mechanism, and circular grooves are provided on the top and bottom of both sides of the brass corrugated protective tube shell. The two clamping mechanisms are pressed into the circular grooves on both sides of the brass corrugated protective tube shell to fix the brass corrugated protective tube shell.

[0013] Furthermore, the clamping mechanism includes a connecting plate, and the top and bottom of the bell-mouth straight joint or the bell-mouth copper elbow are fixedly connected to the connecting plate, and one side of the two connecting plates is fixedly connected to a cross plate, and a threaded hole is opened on the cross plate, and a threaded rod is threadedly connected to the threaded hole. The threaded rod can be pressed in a circular groove, and the outer wall of the threaded rod is threadedly connected to a screw, which is used to keep the threaded rod stationary after clamping the brass corrugated protective tube shell.

[0014] Furthermore, two ends of the brass corrugated protective tube shell are respectively fixedly mounted on the bell-mouth copper elbow and the bell-mouth straight head through clamps.

[0015] Furthermore, the warm upsetting element is connected to the joint and the pressure part on the pipeline where the pressure needs to be detected.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the brass corrugated protective tube shell effectively protects the pure copper capillary tube inside, preventing it from being damaged after long-term wear, thereby improving the reliability of the chiller;

[0017] The brass corrugated protective tube shell has good deformation plasticity, which improves the adaptability of the capillary connecting tube and facilitates the removal and replacement of the brass corrugated protective tube shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The disclosure of the present invention is described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the accompanying drawings, the same reference numerals are used to refer to the same components. Among them:

[0019] Figure 1 The schematic diagram shows the structure of a device according to one embodiment of the present invention;

[0020] Figure 2 The cross-sectional structure diagram of the detachable brass corrugated protective tube shell of the device proposed according to one embodiment of the utility model is schematically shown.

[0021] Numbers in the figure: 1. pure copper capillary; 2. bell-mouth copper elbow; 3. bell-mouth straight connector; 4. brass corrugated protective tube shell; 5. warm upsetting nipple; 6. connecting plate; 7. cross plate; 8. threaded hole; 9. screw; 10. round groove; 11. threaded rod. DETAILED DESCRIPTION

[0022] It is easy to understand that according to the technical solution of the utility model, without changing the essential spirit of the utility model, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction to the technical solution of the utility model.

[0023] Example:

[0024] like Figure 1-2 As shown, a capillary connecting pipe with a sheath for a chiller comprises a pure copper capillary 1, a bell-mouth copper elbow 2, a bell-mouth straight connector 3, a brass corrugated protective tube shell 4, and a warm upsetting nipple 5.

[0025] The bell-mouth copper elbow 2 and the bell-mouth straight joint 3 are welded to the two ends of the pure copper capillary 1 by using the copper brazing process, and the warm upsetting nipple 5 is sleeved on the joint of the bell-mouth copper elbow 2 and the bell-mouth straight joint 3 away from the pure copper capillary 1.

[0026] A connecting plate 6 is fixedly connected to the top and bottom of the bell-mouth copper elbow 2 and the bell-mouth straight connector 3, a horizontal plate 7 is fixedly connected to one side of the two connecting plates 6, a threaded hole 8 is opened on the horizontal plate 7, a threaded rod 11 is threadedly connected to the threaded hole 8, circular grooves 10 are opened on the top and bottom of both sides of the brass corrugated protective tube shell 4, the threaded rod 11 can be pressed in the circular groove 10, and a screw 9 is threadedly connected to the outer wall of the threaded rod 11, which is used to keep the threaded rod 11 stationary after the brass corrugated protective tube shell 4 is pressed.

[0027] When in use, the joints and pressure components (such as pressure gauges) on the pipelines to be detected are connected through the warm upsetting nipples 5 at both ends. The pure copper capillary 1 is inside the brass corrugated protective tube shell 4 and passes through the internal structure of the chiller under the protection of the brass corrugated protective tube shell 4. The brass corrugated protective tube shell 4 has good deformation plasticity and can meet the bending requirements of the capillary copper tube when in use. When the brass corrugated protective tube shell 4 needs to be replaced, just loosen the screws 9.

[0028] The technical scope of the present invention is not limited to the contents described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical concept of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A capillary connecting pipe with a sheath for a chiller, characterized in that: include: Pure copper capillary (1); A bell-mouth copper elbow (2), wherein the bell-mouth copper elbow (2) is welded to one end of the pure copper capillary (1); A bell-mouth direct connector (3), wherein the bell-mouth direct connector (3) is welded to the other end of the pure copper capillary (1); A warm upsetting nipple (5), wherein one end of the bell-mouth copper elbow (2) and the bell-mouth straight joint (3) away from the pure copper capillary (1) is connected to the warm upsetting nipple (5); A brass corrugated protective tube shell (4), wherein both ends of the brass corrugated protective tube shell (4) are detachably mounted on a bell-mouth copper elbow (2) and a bell-mouth straight connector (3), and the pure copper capillary (1) is placed inside the brass corrugated protective tube shell (4).

2. A capillary connecting pipe with a sheath for a chiller according to claim 1, characterized in that: The bell-mouth copper elbow (2) and the bell-mouth straight joint (3) are welded to the two ends of the pure copper capillary (1) by copper brazing.

3. The capillary connecting pipe with a sheath for a chiller according to claim 1, characterized in that: The bell-mouth straight joint (3) and the bell-mouth copper elbow (2) are both fixedly connected with a clamping mechanism, and the top and bottom of both sides of the brass corrugated protective tube shell (4) are provided with circular grooves (10), and the two clamping mechanisms are pressed into the circular grooves (10) on both sides of the brass corrugated protective tube shell (4) to fix the brass corrugated protective tube shell (4).

4. A capillary connecting pipe with a sheath for a chiller according to claim 3, characterized in that: The clamping mechanism comprises a connecting plate (6), the top and bottom of the bell-mouth straight joint (3) or the bell-mouth copper elbow (2) are fixedly connected to the connecting plate (6), one side of the two connecting plates (6) is fixedly connected to a transverse plate (7), the transverse plate (7) is provided with a threaded hole (8), a threaded rod (11) is threadedly connected to the threaded hole (8), the threaded rod (11) can be pressed into the circular groove (10), and the outer wall of the threaded rod (11) is threadedly connected to a screw (9), which is used to keep the threaded rod (11) in a stationary state after the brass corrugated protective tube shell (4) is pressed.

5. The capillary connecting pipe with a sheath for a chiller according to claim 1, characterized in that: The two ends of the brass corrugated protective tube shell (4) are respectively fixedly mounted on the bell-mouth copper elbow (2) and the bell-mouth straight connector (3) through clamps.

6. The capillary connecting pipe with a sheath for a chiller according to claim 1, characterized in that: The warm upsetting nipple (5) is connected to the joint and the pressure parts on the pipeline whose pressure needs to be detected.

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