Anti-corrosion composite pipeline for refrigerating machine
The composite structure of the inner copper tube, the middle support sleeve and the outer plastic sleeve solves the corrosion problem of the refrigerator copper tube in the acidic environment, realizes the anti-corrosion protection of the copper tube, prolongs the service life and reduces the maintenance and production costs.
Patent Information
- Application Number
- CN202423180235.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-12-23
AI Technical Summary
The copper tubes of refrigerators are easily corroded in acidic environments, which shortens their service life and requires frequent replacement, affecting production efficiency and costs.
It adopts a composite structure of inner copper tube, middle support sleeve and outer plastic sleeve. The clamping connection of the tube body is achieved through the design of outer seal and inner seal. The outer plastic sleeve wraps the inner copper tube to avoid direct contact with the acidic environment.
Effectively prevent copper pipe corrosion, extend service life, reduce maintenance and production costs, and improve production efficiency.
Smart Images
Figure CN223460048U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to freezer technical field especially relates to a freeze machine is with anticorrosive composite pipeline. BACKGROUND
[0002] Epoxy resin plasticizer production process will use freezer and compressor, and the production environment will contain acid gas, the freezer will use copper pipe, and copper pipe is exposed in the acid environment for a long time, is easily corroded, causes copper pipe service life to reduce greatly, needs frequent replacement, makes production efficiency unable to promote, simultaneously production cost cannot reduce. UTILITY MODEL CONTENTS
[0003] The utility model solves the technical problem to provide a freeze machine is with anticorrosive composite pipeline.
[0004] To solve the above technical problem, the technical scheme of the utility model is as follows: a freeze machine is with anticorrosive composite pipeline, and the innovation point lies in: including a pipe body and the end seal set up at the length both sides of the pipe body;
[0005] The pipe body is transversely arranged and includes an inner copper pipe, a middle support sleeve pipe and an outer plastic sleeve pipe which are sequentially sleeved from inside to outside, a rectangular groove is formed in the inner wall of the length both sides of the inner copper pipe, so that the inner copper pipe has a first vertical surface, a first horizontal surface, a second vertical surface and a second horizontal surface which are sequentially arranged, and the first vertical surface is the end surface of the inner copper pipe;
[0006] The end seal includes an outer seal and an inner seal, the outer seal includes a connecting outer ring part on the outer side of the pipe body and a clamping inner ring part on the outer wall of the outer plastic sleeve pipe, the inner seal includes a circular ring body, the cross section of the circular ring body is an L-shaped structure, the vertical part of the L-shaped structure is threadedly connected with the connecting outer ring part, and the horizontal section of the L-shaped structure extends into the groove and is arranged in close contact with the first horizontal surface and the second vertical surface, so that the end structure of the pipe body is clamped by the copper pipe inner seal and the outer seal.
[0007] Further, the outer seal includes a first annular block and a second annular block which are oppositely arranged, the bottom extension sides of the first annular block and the second annular block are hingedly connected, a connecting groove is arranged in the top extension side of the first annular block, a connecting protrusion is arranged on the top extension side of the second annular block and just arranged in the connecting groove, and a bolt is arranged through the connecting groove and the connecting protrusion, so that the outer seal can be quickly disassembled and the outer plastic sleeve pipe can be quickly replaced, thereby reducing the maintenance cost.
[0008] Further, the middle support sleeve is arranged outside the central part of the inner copper pipe, the length of the middle support sleeve is smaller than that of the inner copper pipe, the inner sealing element further has an extending ring segment, the extending ring segment is arranged on the inner wall of the ring body above the horizontal segment, is arranged between the inner copper pipe and the outer plastic sleeve and is attached to the end surface of the middle support sleeve, and a space for arranging the end part of the outer plastic sleeve is left between the extending ring segment and the outer sealing element, so that the connection tightness between the end sealing element and the pipe body is improved.
[0009] Further, a chamfer is arranged at the top end of the vertical part of the ring body close to the outer plastic sleeve, so that the outer sealing element and the inner sealing element are quickly connected.
[0010] Further, a plurality of through holes are arranged on the middle support sleeve, so that the heat conduction performance of the structure is improved.
[0011] Further, the end part of the middle support sleeve is provided with a round corner, so that the outer plastic sleeve is not damaged during the sleeving process.
[0012] Further, an arc-shaped protruding block is arranged on the inner wall of the clamping inner ring part of the outer sealing element, so that the outer plastic sleeve is clamped.
[0013] The utility model has the advantages that:
[0014] In the structure, the middle support sleeve is arranged outside the inner copper pipe, and the outer plastic sleeve is arranged outside the middle support sleeve, the inner copper pipe can be wrapped and protected by the outer plastic sleeve, so that the copper pipe is not easily corroded due to long-term direct exposure to an acidic environment, the safe service life of the copper pipe is prolonged, frequent replacement is avoided, the safety production efficiency is improved, and the safety production cost is reduced.
[0015] 2. The outer sealing element comprises first and second annular blocks arranged opposite to each other, the bottom extension sides of the first and second annular blocks are hingedly connected, the top extension side of the first annular block is provided with a connecting groove in the middle part, the top extension side of the second annular block is provided with a connecting protruding block arranged in the connecting groove, and a bolt is arranged through the connecting groove and the connecting protruding block, so that the outer plastic sleeve can be quickly replaced by quickly disassembling the outer sealing element, and the maintenance cost is reduced.
[0016] 3. The middle support sleeve is arranged outside the central part of the inner copper pipe, the length of the middle support sleeve is smaller than that of the inner copper pipe, the inner sealing element further has an extending ring segment, the extending ring segment is arranged on the inner wall of the ring body above the horizontal segment, is arranged between the inner copper pipe and the outer plastic sleeve and is attached to the end surface of the middle support sleeve, and a space for arranging the end part of the outer plastic sleeve is left between the extending ring segment and the outer sealing element, so that the connection tightness between the end sealing element and the pipe body is improved.
[0017] 4. A chamfer is provided at the top of the vertical portion of the ring body near the outer plastic sleeve to facilitate the rapid docking of the outer seal and the inner seal.
[0018] 5. A plurality of through holes are provided on the middle support sleeve to improve the thermal conductivity of the structure.
[0019] 6. The outer corners of the ends of the middle support sleeve are set as rounded corners to avoid damage to the outer plastic sleeve during the installation process.
[0020] 7. An arc-shaped protrusion is provided on the inner wall of the clamping inner ring of the outer seal, which cooperates with the middle support sleeve to clamp the outer plastic sleeve. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Fig. 1 It is a cross-sectional view of the present utility model.
[0022] Fig. 2 It is a side view of the present utility model.
[0023] Fig. 3 It is an enlarged view of part of the structure of the utility model. DETAILED DESCRIPTION
[0024] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.
[0025] like Figs. 1-3 The anti-corrosion composite pipe for a refrigerator shown includes a pipe body and end seals arranged on both sides of the pipe body.
[0026] The tube body is arranged horizontally, and comprises an inner copper tube 1, a middle supporting sleeve 2 and an outer plastic sleeve 3 which are sleeved in sequence from the inside to the outside.
[0027] A plurality of through holes 4 are provided on the middle support sleeve 2 , and the through holes 4 improve the thermal conductivity of the structure.
[0028] The outer corners of the ends of the middle support sleeve 2 are rounded to avoid damage to the outer plastic sleeve 3 during the sleeve installation process.
[0029] A rectangular groove 5 is provided on the inner wall of both sides of the inner copper tube 1 , so that the inner copper tube 1 has a first vertical surface, a first horizontal surface, a second vertical surface and a second horizontal surface arranged in sequence, and the first vertical surface is the end surface of the inner copper tube 1 .
[0030] The end seal comprises an outer seal 6 and an inner seal 7. The outer seal 6 comprises a connecting outer ring part 61 on the outer side of the pipe body and a clamping inner ring part 62 arranged on the outer wall of the outer plastic sleeve 3. An arc-shaped protrusion 63 is arranged on the inner wall of the clamping inner ring part 62 of the outer seal 6, which cooperates with the middle support sleeve 2 to clamp the outer plastic sleeve 3. An inner thread is arranged on the inner wall of the connecting outer ring part 61.
[0031] The outer seal 6 comprises a first annular block 64 and a second annular block 65. The first annular block 64 and the second annular block 65 are arranged opposite to each other, and the bottom extension sides of the first annular block 64 and the second annular block 65 are hingedly connected. A connecting recess is arranged in the middle of the top extension side of the first annular block 64. A connecting protrusion 66 is arranged on the top extension side of the second annular block 65 and is arranged in the connecting recess. A bolt 67 is arranged through the connecting recess and the connecting protrusion 66, so that the outer seal 6 can be quickly disassembled to realize quick replacement of the outer plastic sleeve 3 and reduce maintenance costs.
[0032] The inner seal 7 comprises a circular ring body. The cross section of the circular ring body is an L-shaped structure. The top end of the vertical part of the circular ring body is threadedly connected with the connecting outer ring part 61. The top end of the vertical part is provided with an outer thread. The horizontal section of the circular ring body extends into the rectangular recess 5 and is arranged in abutment with the first horizontal surface and the second vertical surface. Thus, the end structure of the pipe body is clamped by the copper pipe inner seal 7 and the outer seal 6.
[0033] The middle support sleeve is arranged on the outer side of the inner copper pipe 1. The length of the middle support sleeve 2 is less than that of the inner copper pipe 1. The inner seal 7 further comprises an extended circular ring section 8 arranged on the inner wall of the circular ring body above the horizontal section. The extended circular ring section 8 is arranged between the inner copper pipe 1 and the outer plastic sleeve 3 and abuts against the end surface of the middle support sleeve 2. The extended circular ring section 8 and the outer seal 6 leave a space for accommodating the end part of the outer plastic sleeve 3, thereby improving the connection tightness between the end seal and the pipe body.
[0034] A chamfer is arranged on the top end of the vertical part of the circular ring body close to the outer plastic sleeve 3, which facilitates the quick butt joint of the outer seal 6 and the inner seal 7.
[0035] The working principle of the patent is as follows:
[0036] The middle supporting sleeve 2 is sleeved on the outer wall of the inner copper pipe 1, the outer plastic sleeve 3 is sleeved on the middle supporting sleeve 2, the pipe body is obtained, the first annular block 64 and the second annular block 65 of the outer sealing element 6 are sleeved and clamped by the bolt 67, the clamping inner ring part 62 of the outer sealing element 6 is clamped and arranged on the outer wall of the outer plastic sleeve 3, the connecting outer ring part 61 of the outer sealing element 6 is arranged on the outer side of the pipe body, the extension circular segment 8 and the horizontal segment of the circular ring body are respectively aligned between the outer plastic sleeve 3 and the middle supporting sleeve 2, the rectangular recess 5 is inserted, and the connecting outer ring part 61 of the outer sealing element 6 is screwed, so that the pipe body is clamped and sealed. The outer plastic sleeve 3 is used for wrapping and protecting the inner copper pipe 1, so that the copper pipe is not directly exposed to the acidic environment for a long time, is not easy to be corroded, the service life of the copper pipe is prolonged, frequent replacement is avoided, the production efficiency is improved, and the production cost is reduced.
[0037] When the outer plastic sleeve 3 is damaged, the bolt 67 is pulled out, the outer sealing element 6 is removed, the inner sealing element 7 is removed, a new outer plastic sleeve 3 is sleeved, and the outer sealing element 6 and the inner sealing element 7 are installed.
[0038] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments, as long as the changes or modifications do not deviate from the technical scheme of the present application. Any modification, equivalent change and modification of the above embodiments, which does not deviate from the technical scheme of the present application, is still within the scope of the present application.
Claims
1. A corrosion resistant composite pipe for refrigeration, characterized by: The utility model relates to a pipe body and end seals arranged on both sides of the length of the pipe body; The pipe body is arranged transversely and comprises an inner copper pipe, a middle support sleeve and an outer plastic sleeve which are sequentially sleeved from inside to outside, a rectangular groove is formed on the inner wall of the length of the inner copper pipe, so that the inner copper pipe has a first vertical surface, a first horizontal surface, a second vertical surface and a second horizontal surface which are sequentially arranged, and the first vertical surface is the end surface of the inner copper pipe; The end seal comprises an outer seal and an inner seal, the outer seal comprises a connecting outer ring arranged on the outside of the pipe body and a clamping inner ring arranged on the outer wall of the outer plastic sleeve, and the inner seal comprises a circular ring body, the cross section of the circular ring body is an L-shaped structure, the top end of the vertical part of the circular ring body is threadedly connected with the connecting outer ring, and the horizontal section of the circular ring body extends into the groove and is arranged in close contact with the first horizontal surface and the second vertical surface.
2. A corrosion resistant composite pipe for refrigeration according to claim 1, characterized in that: The outer seal comprises first and second annular blocks which are arranged oppositely, the bottom extension sides of the first and second annular blocks are hingedly connected, a connecting groove is arranged in the top extension side of the first annular block, a connecting protrusion is arranged on the top extension side of the second annular block and just arranged in the connecting groove, and a bolt is arranged through the connecting groove and the connecting protrusion.
3. A corrosion resistant composite pipe for refrigeration according to claim 1, wherein: The middle support sleeve is arranged on the outside of the central part of the inner copper pipe, the length of the middle support sleeve is smaller than that of the inner copper pipe, the inner seal further has an extended circular ring section, the extended circular ring section is arranged on the inner wall of the circular ring body above the horizontal section, is arranged between the inner copper pipe and the outer plastic sleeve and in close contact with the end surface of the middle support sleeve, and a space is left between the extended circular ring section and the outer seal for accommodating the end part of the outer plastic sleeve.
4. A corrosion resistant composite pipe for refrigeration according to claim 1, wherein: A chamfer is arranged on the top end of the vertical part of the circular ring body close to the outer plastic sleeve.
5. A corrosion resistant composite pipe for refrigeration according to claim 2, wherein: A plurality of through holes are formed on the middle support sleeve.
6. A corrosion resistant composite pipe for refrigeration according to claim 5, wherein: The outer corner of the end part of the middle support sleeve is chamfered.
7. A corrosion resistant composite pipe for refrigeration according to claim 1, wherein: An arc-shaped protrusion is arranged on the inner wall of the clamping inner ring of the outer seal.