Pipeline connecting structure of carbon dioxide refrigerator
By using a beveled cone and clamp structure in a carbon dioxide freezer and using a threaded sleeve to drive the clamp to tighten the flange, the problem of intimate connection in the prior art is solved, and higher sealing and reduced gas leakage are achieved.
Patent Information
- Application Number
- CN202422818223.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-11-18
AI Technical Summary
The connection between the compressor and the condenser of the existing carbon dioxide freezer is not tight enough, causing high-pressure and high-temperature gas to penetrate through the gap between the flanges, causing gas leakage.
The inclined cone and clamp structure is connected by bumps, bolts and nuts, and the threaded sleeve is driven to rotate by eight-sided screw sleeves, so that the clamp assembly is closed simultaneously, ensuring that the flange is tightly attached and enhancing sealing.
Improves the sealing of pipe connections, reduces gas leakage, and enhances the tightness of the connection.
Smart Images
Figure CN223228053U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of carbon dioxide refrigerators, in particular to a pipeline connection structure for a carbon dioxide refrigerator. Background Art
[0002] The operating principle of a CO2 refrigerator is primarily based on the phase change of CO2. Specifically, it involves the following steps: ① Compression: The compressor compresses CO2 gas into high-pressure gas, increasing its temperature and pressure. ② Condensation: The high-pressure CO2 gas enters the condenser, where it is converted to liquid through cooling, releasing heat. ③ Expansion: The liquid CO2 passes through the expansion valve, throttling it, reducing its pressure and temperature. ④ Evaporation: In the evaporator, the low-pressure, low-temperature liquid CO2 absorbs heat and evaporates into gas, achieving the cooling effect.
[0003] Conventional compressors and condensers are connected by pipes, flanges, bolts and nuts. High-pressure and high-temperature carbon dioxide gas passes through the pipes and flanges, and the high-pressure gas will penetrate through the gaps between the flanges, resulting in a loose connection between the two. Utility Model Content
[0004] (1) Technical problems solved
[0005] In view of the deficiencies in the prior art, the utility model provides a carbon dioxide refrigerator pipe connection structure, which has the advantage of tight connection and solves the above-mentioned problems.
[0006] (2) Technical solution
[0007] In order to achieve the above-mentioned purpose of tight connection, the present invention provides the following technical solution: a carbon dioxide refrigerator pipe connection structure, including a compressor output pipe and a condenser input pipe, the compressor output pipe and the condenser input pipe are fixedly installed with an inclined cone at one end corresponding to the other, a flange is fixedly installed on the side of the inclined cone, a lower clamp is sleeved on the outer side of the inclined cone, an upper clamp is hingedly connected to one end of the lower clamp, and a protrusion is fixedly installed on the end of the lower clamp and the upper clamp away from the hinge, a notch is opened on the surface of the protrusion, and a bolt and a nut are inserted into the inside of the notch.
[0008] Preferably, vertical plates are fixedly installed on the outer sides of the lower clamp and the upper clamp, supports are fixedly installed on the sides of the vertical plates, a movable shaft is fixedly installed on the inner wall of the support, a movable sleeve is sleeved on the outer side of the movable shaft, a threaded rod is fixedly installed on the side of the movable sleeve, a threaded sleeve is threadedly connected to the outer side of the threaded rod, and an octagonal screw sleeve is fixedly installed on the outer side of the threaded sleeve.
[0009] Preferably, the inner walls of the lower clamp and the upper clamp are both provided with a tangent surface with the inclined cone.
[0010] Preferably, the lower clamp is detachably connected to the upper clamp via a protrusion, a notch, a bolt and a nut.
[0011] Preferably, the inner walls on both sides of the threaded sleeve are provided with thread grooves with opposite paths.
[0012] Preferably, the two threaded rods are threadedly connected to each other via a threaded sleeve.
[0013] Preferably, a gasket is provided between the inner wall of the lower clamp and the upper clamp and the inclined cone.
[0014] (3) Beneficial effects
[0015] Compared with the prior art, the present invention provides a carbon dioxide refrigerator pipe connection structure with the following beneficial effects:
[0016] The carbon dioxide refrigerator pipeline connection structure has a lower clamp and an upper clamp that are sleeved on the inclined cone of the pipeline through a protrusion, a bolt, and a nut. A gasket is provided between the inclined cone and the clamp. The threaded sleeve is driven to rotate by the octagonal screw sleeve. The threaded grooves on the inner walls of the two ends of the threaded sleeve have opposite trajectories. The threaded sleeve can tighten the threaded rods on both sides during rotation. The clamp assemblies on both sides are then simultaneously retracted toward the middle. The flanges of the pipelines on both sides are then tightly attached, thereby improving the sealing between the pipelines and reducing gas leakage. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the utility model after the upper clamp is opened;
[0019] Figure 3 This is a schematic structural diagram of the upper clamp and the inclined cone of the utility model;
[0020] Figure 4 This is a schematic diagram of the exploded structure of the threaded rod and threaded sleeve of the utility model;
[0021] Figure 5 This is a schematic diagram of the combined structure of the threaded rod and the threaded sleeve of the utility model.
[0022] In the figure: 1. Compressor output pipe; 2. Condenser input pipe; 3. Bevel cone; 4. Flange; 5. Lower clamp; 6. Upper clamp; 7. Bump; 8. Notch; 9. Bolt and nut; 10. Vertical plate; 11. Support; 12. Movable shaft; 13. Movable sleeve; 14. Threaded rod; 15. Threaded sleeve; 16. Octagonal screw sleeve. DETAILED DESCRIPTION
[0023] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0024] See also Figure 1-5 A carbon dioxide refrigerator pipe connection structure includes a compressor output pipe 1 and a condenser input pipe 2. The compressor output pipe 1 and the condenser input pipe 2 are fixedly installed with an inclined cone 3 at one end corresponding to the compressor output pipe 1 and the condenser input pipe 2. A flange 4 is fixedly installed on the side of the inclined cone 3. An elastic gasket is also provided between the flanges 4, which deforms under pressure to reduce gas leakage; a lower clamp 5 is sleeved on the outer side of the inclined cone 3, and an upper clamp 6 is hinged at one end of the lower clamp 5. The inner walls of the lower clamp 5 and the upper clamp 6 are both provided with a cross-section with the inclined cone 3, and a gasket is provided between the inner walls of the lower clamp 5 and the upper clamp 6 and the inclined cone 3 to block the gap between the two and prevent excessive contact wear.
[0025] See also Figure 1-5 The lower clamp 5 and the upper clamp 6 are fixedly installed with a protrusion 7 at the end away from the hinge. A notch 8 is opened on the surface of the protrusion 7, and a bolt and a nut 9 are inserted into the inside of the notch 8. The lower clamp 5 is detachably connected to the upper clamp 6 through the protrusion 7, the notch 8 and the bolt and nut 9.
[0026] See also Figure 1-5 The lower clamp 5 and the upper clamp 6 are both fixedly mounted with a vertical plate 10 on their outer sides. A support 11 is fixedly mounted on the side of the vertical plate 10. A movable shaft 12 is fixedly mounted on the inner wall of the support 11. A movable sleeve 13 is sleeved on the outer side of the movable shaft 12. A threaded rod 14 is fixedly mounted on the side of the movable sleeve 13. The outer side of the threaded rod 14 is threadedly connected to a threaded sleeve 15. The inner walls of the threaded sleeve 15 have thread grooves with opposite paths. The two threaded rods 14 are threadedly connected to each other through the threaded sleeve 15. An octagonal screw sleeve 16 is fixedly mounted on the outer side of the threaded sleeve 15. The octagonal screw sleeve 16 can drive the threaded sleeve 15 to rotate, thereby controlling the threaded rods 14 on both sides to move closer or farther apart.
[0027] Working principle: When in use, the lower clamp 5 and the upper clamp 6 are installed on the inclined cone 3 of the pipe through the protrusion 7 and the bolt and nut 9. A gasket is set between the inclined cone 3 and the clamp. The threaded sleeve 15 is driven to rotate by the octagonal screw sleeve 16. The threaded groove trajectories on the inner walls of the two ends of the threaded sleeve 15 are opposite. Then, the rotating threaded sleeve 15 can tighten the threaded rods 14 on both sides, and then the clamp assemblies on both sides are simultaneously retracted to the middle, and then the flanges 4 of the pipes on both sides will be tightly attached, thereby improving the sealing between the pipes and reducing gas leakage.
[0028] On the contrary, the threaded sleeve 15 can be driven to flip through the octagonal screw sleeve 16, and then the threaded rods 14 on both sides will separate, and the clamps on both sides will no longer restrain the inclined cone 3. Then, by removing the bolts and nuts 9, the lower clamp 5 and the upper clamp 6 can be removed from the pipeline.
[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A carbon dioxide refrigerator pipe connection structure, comprising a compressor output pipe (1) and a condenser input pipe (2), characterized in that: The compressor output pipe (1) and the condenser input pipe (2) are both fixedly mounted with an inclined cone (3) at one end corresponding to the other, a flange (4) is fixedly mounted on the side of the inclined cone (3), a lower clamp (5) is sleeved on the outer side of the inclined cone (3), an upper clamp (6) is hingedly mounted at one end of the lower clamp (5), and a protrusion (7) is fixedly mounted at the ends of the lower clamp (5) and the upper clamp (6) away from the hinge, a notch (8) is provided on the surface of the protrusion (7), and a bolt and a nut (9) are inserted into the inside of the notch (8).
2. The carbon dioxide refrigerator pipe connection structure according to claim 1, characterized in that: A vertical plate (10) is fixedly mounted on the outer sides of the lower clamp (5) and the upper clamp (6); a support (11) is fixedly mounted on the side of the vertical plate (10); a movable shaft (12) is fixedly mounted on the inner wall of the support (11); a movable sleeve (13) is sleeved on the outer side of the movable shaft (12); a threaded rod (14) is fixedly mounted on the side of the movable sleeve (13); a threaded sleeve (15) is threadedly connected to the outer side of the threaded rod (14); and an octagonal screw sleeve (16) is fixedly mounted on the outer side of the threaded sleeve (15).
3. The carbon dioxide refrigerator pipe connection structure according to claim 1, characterized in that: The inner walls of the lower clamp (5) and the upper clamp (6) are both provided with a tangent surface with the inclined cone (3).
4. The carbon dioxide refrigerator pipe connection structure according to claim 1, characterized in that: The lower clamp (5) is detachably connected to the upper clamp (6) via a protrusion (7), a notch (8), a bolt and a nut (9).
5. The carbon dioxide refrigerator pipe connection structure according to claim 2, characterized in that: The inner walls of both sides of the threaded sleeve (15) are provided with thread grooves with opposite paths.
6. The carbon dioxide refrigerator pipe connection structure according to claim 2, characterized in that: The two threaded rods (14) are threadedly connected to each other via a threaded sleeve (15).
7. The carbon dioxide refrigerator pipe connection structure according to claim 1, characterized in that: Gaskets are provided between the inner walls of the lower clamp (5) and the upper clamp (6) and the inclined cone (3).