CN113483198A - Ultra-low temperature vacuum freezing chamber bellows insulation construction - Google Patents
Ultra-low temperature vacuum freezing chamber bellows insulation construction Download PDFInfo
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- CN113483198A CN113483198A CN202110926748.4A CN202110926748A CN113483198A CN 113483198 A CN113483198 A CN 113483198A CN 202110926748 A CN202110926748 A CN 202110926748A CN 113483198 A CN113483198 A CN 113483198A
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- temperature vacuum
- ultra
- low temperature
- bellows
- working medium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/06—Arrangements using an air layer or vacuum
- F16L59/065—Arrangements using an air layer or vacuum using vacuum
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/028—Composition or method of fixing a thermally insulating material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/006—General constructional features for mounting refrigerating machinery components
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Thermal Insulation (AREA)
Abstract
The utility model provides an ultra-low temperature vacuum freezing chamber bellows insulation construction, bottom plate including ultra-low temperature vacuum freezing cavity and level arrangement, the bottom plate is located ultra-low temperature vacuum freezing cavity downside uncovered department and rather than the cooperation, be equipped with two through-holes that are used for installing mixed refrigeration working medium pipeline on the bottom plate, all be equipped with on every through-hole with the coaxial arrangement of through-hole and vertical downwardly extending and upper and lower open outer bellows, outer bellows downside is equipped with the mounting flange of a sealed outer bellows lower extreme, the mounting flange middle part is equipped with the mixed refrigeration working medium pipeline of vertical arrangement, mixed refrigeration working medium pipeline upper end is passed the through-hole and is got into ultra-low temperature vacuum freezing intracavity, mixed refrigeration working medium pipeline lower extreme surpasss mounting flange, mixed refrigeration working medium pipeline and outer bellows, ultra-low temperature vacuum freezing cavity, the bottom plate all is non-contact state. The direct contact between the mixed refrigeration medium pipeline and the outer wall of the ultralow-temperature vacuum freezing cavity is avoided, the frosting of the outer wall of the ultralow-temperature vacuum freezing cavity is prevented, and the loss of cooling capacity is reduced.
Description
Technical Field
The invention relates to a heat preservation structure of a bellows of an ultralow temperature vacuum freezing cavity.
Background
Need pass through the refrigeration process in the chip manufacture process, the refrigeration process needs go on in the ultra-low temperature vacuum freezing chamber, the ultra-low temperature vacuum freezing chamber includes the bottom plate that ultra-low temperature vacuum freezing chamber body and level were arranged, one advances one and goes out two mixed refrigeration working medium pipelines in the ultra-low temperature vacuum freezing chamber, will the evacuation when ultra-low temperature vacuum freezing chamber used, and because the outer wall difference in temperature of mixed refrigeration working medium pipeline and ultra-low temperature vacuum freezing chamber has 150 ℃, with mixed refrigeration working medium pipeline lug connection on the outer wall of ultra-low temperature vacuum freezing chamber, can cause a large amount of cold volume losses and vacuum cavity wall to frost.
Disclosure of Invention
The invention aims to solve the technical problem of providing a heat preservation structure of an ultralow temperature vacuum freezing cavity corrugated pipe, which avoids direct contact between a mixed refrigeration working medium pipeline and the outer wall of the ultralow temperature vacuum freezing cavity, prevents frosting of the outer wall of the ultralow temperature vacuum freezing cavity and reduces the loss of cooling capacity.
In order to solve the technical problem, the invention provides an ultralow temperature vacuum freezing cavity corrugated pipe heat-insulating structure, which comprises an ultralow temperature vacuum freezing cavity and a horizontally arranged bottom plate, wherein the bottom plate is arranged at an opening at the lower side of the ultralow temperature vacuum freezing cavity and is matched with the ultralow temperature vacuum freezing cavity, two through holes for installing mixed refrigerating medium pipelines are arranged on the bottom plate, each through hole is provided with an outer corrugated pipe which is coaxially arranged with the through hole, vertically and downwards extends and is provided with an upper opening and a lower opening, the lower side of the outer corrugated pipe is provided with a mounting flange for sealing the lower end of the outer corrugated pipe, the middle part of the outer corrugated pipe is provided with a vertically arranged mixed refrigerating medium pipeline, the upper end of the mixed refrigerating medium pipeline penetrates through the through hole to enter the ultralow temperature vacuum freezing cavity, the lower end of the mixed refrigerating medium pipeline exceeds the mounting flange, the mixed refrigerating medium pipeline, the outer corrugated pipe and the ultralow temperature vacuum freezing cavity, the bottom plates are all in a non-contact state.
For the sake of simple explanation, the bellows thermal insulation structure of the ultra-low temperature vacuum freezing chamber of the present invention is simply referred to as the present structure below.
The advantage of this structure: by adopting the structure, the ultra-low temperature refrigerant of the vacuum cavity realizes frost-free transmission through the corrugated pipe, avoids the direct contact between the mixed refrigeration working medium pipeline and the outer wall of the ultra-low temperature vacuum refrigeration cavity, and because the ultra-low temperature vacuum refrigeration cavity is vacuumized when in use, no air is used as a heat transfer medium between the corrugated pipe and the mixed refrigeration working medium pipeline, the heat insulation effect is better, the frosting on the outer wall of the ultra-low temperature vacuum refrigeration cavity is prevented, and the cold loss is also reduced.
In order to achieve better using effect of the structure, the preferable scheme is as follows:
preferably, the lower side of the bottom plate is provided with an annular groove which is circumferentially arranged around each through hole and corresponds to each through hole.
The annular groove can reduce the area of the joint of the bottom plate and the outer corrugated pipe, so that the heat transfer effect is reduced, and the heat insulation effect is further improved.
Preferably, N inner corrugated pipes are further arranged between the mixed refrigeration working medium pipeline and the outer corrugated pipe, N is larger than or equal to 1, the N inner corrugated pipes and the mixed refrigeration working medium pipeline are sleeved inside and outside and are coaxially arranged, the N inner corrugated pipes sleeved inside and outside, the mixed refrigeration working medium pipeline and the outer corrugated pipe are in a non-contact state, the inner corrugated pipe is open up and down, the upper side of the inner corrugated pipe is flush with the upper side of the outer corrugated pipe, and the lower side of the inner corrugated pipe is connected with the mounting flange.
The addition of interior bellows can further completely cut off the heat radiation, increases the thermal-insulated effect of this structure, improves the energy efficiency ratio of system, according to thermal-insulated needs, and interior bellows number of piles N is greater than or equal to 1, and the more the number of piles of interior bellows is moreover, and the heat preservation effect is better.
Drawings
Fig. 1 is a schematic structural diagram of a first structural embodiment.
Fig. 2 is a schematic structural diagram of a second structural embodiment.
Fig. 1 and 2 both show only one through hole and its corresponding bellows and mixed refrigerant pipeline.
Detailed Description
Example one, an example using only an outer bellows:
referring to fig. 1, the ultra-low temperature vacuum freezing cavity corrugated pipe heat preservation structure comprises an ultra-low temperature vacuum freezing cavity 1 and a bottom plate 2 which is horizontally arranged, wherein the bottom plate 2 is arranged at an opening at the lower side of the ultra-low temperature vacuum freezing cavity 1 and is matched with the opening, two through holes 21 for installing mixed refrigerating working medium pipelines 5 are arranged on the bottom plate 2, each through hole 21 is provided with an outer corrugated pipe 3 which is coaxially arranged with the through hole 21, vertically and downwardly extends and is opened up and down, the lower side of the outer corrugated pipe 3 is provided with an installation flange 4 for sealing the lower end of the outer corrugated pipe 3, the middle part of the installation flange 4 is provided with the mixed refrigerating working medium pipeline 5 which is vertically arranged, the upper end of the mixed refrigerating working medium pipeline 5 penetrates through the through hole 21 to enter the ultra-low temperature vacuum freezing cavity, the lower end of the mixed refrigerating working medium pipeline 5 exceeds the installation flange 4, and the mixed refrigerating working medium pipeline 5, the outer corrugated pipe 3, the ultra-low temperature vacuum freezing cavity 1, The base plates 2 are all in a non-contact state.
The lower side of the bottom plate 2 is provided with an annular groove 22 which is circumferentially arranged around the through hole 21 and corresponds to each through hole 21.
The advantage of this structure: by adopting the structure, the ultra-low temperature refrigerant of the vacuum cavity realizes frost-free transmission through the corrugated pipe, avoids the direct contact between the mixed refrigeration working medium pipeline 5 and the outer wall of the ultra-low temperature vacuum refrigeration cavity, and because the ultra-low temperature vacuum refrigeration cavity is vacuumized when in use, no air is used as a heat transfer medium between the corrugated pipe and the mixed refrigeration working medium pipeline 5, the heat insulation effect is better, the frosting of the outer wall of the ultra-low temperature vacuum refrigeration cavity is prevented, and the cold quantity loss is also reduced.
The annular groove 22 can reduce the area of the junction of the bottom plate 2 and the outer bellows 3, thereby reducing the heat transfer effect and further improving the heat insulation effect.
Example two, an example using an inner bellows:
referring to fig. 2, the ultra-low temperature vacuum freezing cavity corrugated pipe heat insulation structure comprises an ultra-low temperature vacuum freezing cavity 1 and a bottom plate 2 which is horizontally arranged, wherein the bottom plate 2 is arranged at an opening at the lower side of the ultra-low temperature vacuum freezing cavity 1 and is matched with the opening, two through holes 21 for installing mixed refrigerating working medium pipelines 5 are arranged on the bottom plate 2, each through hole 21 is provided with an outer corrugated pipe 3 which is coaxially arranged with the through hole 21, vertically and downwardly extends and is opened up and down, the lower side of the outer corrugated pipe 3 is provided with an installation flange 4 for sealing the lower end of the outer corrugated pipe 3, the middle part of the installation flange 4 is provided with the mixed refrigerating working medium pipeline 5 which is vertically arranged, the upper end of the mixed refrigerating working medium pipeline 5 penetrates through the through hole 21 to enter the ultra-low temperature vacuum freezing cavity, the lower end of the mixed refrigerating working medium pipeline 5 exceeds the installation flange 4, and the mixed refrigerating working medium pipeline 5, the outer corrugated pipe 3, the ultra-low temperature vacuum freezing cavity 1, The base plates 2 are all in a non-contact state.
Still be equipped with an interior bellows 31 between mixed refrigeration working medium pipeline 5 and the 3 papers of outer bellows, interior bellows 31 and mixed refrigeration working medium pipeline 5 coaxial arrangement, and interior bellows 31 and mixed refrigeration working medium pipeline 5, outer bellows 3 all are non-contact state, and interior bellows 31 is uncovered from top to bottom, and interior bellows 31 upside and 3 upside parallel and level of outer bellows, interior bellows 31 downside meet with mounting flange 4.
The addition of interior bellows 31 can further completely cut off the heat radiation, increases the thermal-insulated effect of this structure, improves the energy efficiency ratio of system. According to the requirement of heat insulation, the number N of the layers of the inner corrugated pipe is more than or equal to 1
It should be noted that the above description is only two embodiments of the present application, and is not intended to limit the present application in any way, for example, in the second embodiment, one inner bellows may be replaced by a plurality of inner bellows that are coaxially sleeved, and it will be understood by those skilled in the art that various changes or modifications may be made to the corresponding embodiments without departing from the scope of the present application. However, any modification, equivalence and equivalent changes made to the above embodiments according to the content of the present application are still within the scope of the technical solution of the present invention, without departing from the spirit of the technical solution of the present application.
Claims (3)
1. The utility model provides an ultra-low temperature vacuum refrigeration chamber bellows insulation construction which characterized in that: including the bottom plate that ultra-low temperature vacuum freezing cavity and level were arranged, the uncovered department of ultra-low temperature vacuum freezing cavity downside is located to the bottom plate and rather than the cooperation, be equipped with two through-holes that are used for installing mixed refrigeration working medium pipeline on the bottom plate, all be equipped with on every through-hole with the coaxial arrangement of through-hole and vertical downwardly extending and upper and lower open outer bellows, outer bellows downside is equipped with the mounting flange of a sealed outer bellows lower extreme, the mounting flange middle part is equipped with the mixed refrigeration working medium pipeline of vertical arrangement, mixed refrigeration working medium pipeline upper end is passed the through-hole and is got into the ultra-low temperature vacuum freezing intracavity, mixed refrigeration working medium pipeline lower extreme surpasss mounting flange, mixed refrigeration working medium pipeline and outer bellows, the ultra-low temperature vacuum freezing cavity, the bottom plate all is non-contact state.
2. The bellows insulation structure of ultra-low temperature vacuum freezing chamber of claim 1, characterized in that: the bottom plate downside position on correspond every through-hole department and all be equipped with the annular groove of encircleing through-hole circumference and arranging.
3. The bellows insulation structure of ultra-low temperature vacuum freezing chamber of claim 1, characterized in that: still be equipped with N interior bellows between mixed refrigeration working medium pipeline and the outer bellows, N is greater than or equal to 1, and cup joints and coaxial arrangement inside and outside N interior bellows and mixed refrigeration working medium pipeline, all is non-contact state between inside and outside N interior bellows that cup joints, mixed refrigeration working medium pipeline and the outer bellows, and interior bellows is uncovered from top to bottom, and interior bellows upside and outer bellows upside parallel and level, interior bellows downside meet with mounting flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110926748.4A CN113483198A (en) | 2021-08-12 | 2021-08-12 | Ultra-low temperature vacuum freezing chamber bellows insulation construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110926748.4A CN113483198A (en) | 2021-08-12 | 2021-08-12 | Ultra-low temperature vacuum freezing chamber bellows insulation construction |
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| Publication Number | Publication Date |
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| CN113483198A true CN113483198A (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110926748.4A Pending CN113483198A (en) | 2021-08-12 | 2021-08-12 | Ultra-low temperature vacuum freezing chamber bellows insulation construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163947A (en) * | 2022-05-24 | 2022-10-11 | 安徽万瑞冷电科技有限公司 | Vacuum sealing pipe joint device for fluid transmission |
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2021
- 2021-08-12 CN CN202110926748.4A patent/CN113483198A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163947A (en) * | 2022-05-24 | 2022-10-11 | 安徽万瑞冷电科技有限公司 | Vacuum sealing pipe joint device for fluid transmission |
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