CN114412006B - Be applied to compound heat preservation system of freezer - Google Patents

Be applied to compound heat preservation system of freezer Download PDF

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Publication number
CN114412006B
CN114412006B CN202210134303.7A CN202210134303A CN114412006B CN 114412006 B CN114412006 B CN 114412006B CN 202210134303 A CN202210134303 A CN 202210134303A CN 114412006 B CN114412006 B CN 114412006B
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China
Prior art keywords
polyurethane
heat preservation
heat
keel
wall
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CN202210134303.7A
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Chinese (zh)
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CN114412006A (en
Inventor
邴全
包双福
李君�
徐忠成
汪锴亮
李澎
王子聪
张志猛
白辉祥
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China Construction Third Bureau Group Beijing Co ltd
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China Construction Third Bureau Group Beijing Co ltd
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Priority to CN202210134303.7A priority Critical patent/CN114412006B/en
Publication of CN114412006A publication Critical patent/CN114412006A/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/762—Exterior insulation of exterior walls
    • E04B1/7625—Details of the adhesive connection of the insulation to the wall
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/74—Removable non-load-bearing partitions; Partitions with a free upper edge
    • E04B2/80—Removable non-load-bearing partitions; Partitions with a free upper edge with framework or posts of wood
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
    • E04C5/03—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
    • E04H5/10—Buildings forming part of cooling plants
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2002/0202—Details of connections
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/24—Structural elements or technologies for improving thermal insulation
    • Y02A30/244—Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Building Environments (AREA)

Abstract

The invention discloses a composite heat preservation system applied to a refrigeration house, wherein a storage room is arranged in the refrigeration house, a penetrating room is arranged at one side of the storage room, goods doors for entering and exiting goods are arranged between the penetrating room and the storage room, masonry walls are arranged between the storage room and the penetrating room, an inner heat preservation wall is arranged on the wall, which is correspondingly positioned at the inner side of the penetrating room, of the storage room, and an outer heat preservation wall is arranged on the wall, which is correspondingly contacted with the outer environment, of the storage room; the inner heat-insulating wall body comprises a polyurethane heat-insulating layer, a wood keel and a color steel veneer, wherein the polyurethane heat-insulating layer is sprayed on the masonry wall body, the wood keel is fixed on the masonry wall body, and the color steel veneer is fixed on the wood keel; the outer heat preservation wall body includes polyurethane cushion, fossil fragments subassembly, polyurethane heat preservation and various steel rock wool sandwich decorative board, and fossil fragments subassembly is fixed on the masonry wall body in the storing room outside, and corresponds the junction transition and have the polyurethane cushion that plays the effect of broken cold bridge, and polyurethane heat preservation spraying is on the masonry wall body, and various steel rock wool sandwich decorative board is fixed on fossil fragments subassembly.

Description

Be applied to compound heat preservation system of freezer
Technical Field
The invention relates to a heat preservation project, in particular to a composite heat preservation system applied to a refrigeration house.
Background
The cold storage is a building which uses an artificial refrigeration method to enable a fixed space to reach a specified temperature so as to store articles, can get rid of the influence of climate, prolongs the storage and preservation period of farm animal products, and is convenient for processing foods at any time. In recent years, with the rapid development of the cold chain logistics industry in China, the design and construction market of the cold storage also step into the fast lanes of industry development. In order to realize the function of the refrigeration house, the heat preservation process is the core in the design and construction process. The traditional refrigeration house mostly adopts an internal heat preservation process, and has low engineering quality, high cost and poor operation effect.
Therefore, how to provide a composite heat preservation system of a refrigeration house with high engineering quality, low cost, good operation effect, energy conservation and environmental protection is a problem to be solved by the person skilled in the art.
Disclosure of Invention
In view of the above, the invention provides a composite heat preservation system applied to a refrigeration house, which has the advantages of easier control of engineering quality, low cost, good later operation effect, energy conservation and environmental protection.
In order to achieve the above purpose, the invention adopts the following technical scheme: the composite heat preservation system is applied to a refrigeration house, wherein a storage room is arranged in the refrigeration house, a hall is arranged on one side of the storage room, a goods door for entering and exiting goods is arranged between the hall and the storage room, masonry walls are arranged between the storage room and the hall, an inner heat preservation wall is arranged on the wall, which is correspondingly positioned on the inner side of the hall, of the storage room, and an outer heat preservation wall is arranged on the wall, which is correspondingly contacted with the external environment, of the storage room;
the inner heat-insulating wall body comprises a polyurethane heat-insulating layer, a wood keel and a color steel veneer, wherein the polyurethane heat-insulating layer is sprayed on the masonry wall body, the wood keel is fixed on the masonry wall body, and the color steel veneer is fixedly connected on the wood keel;
the outer heat preservation wall body includes polyurethane cushion, fossil fragments subassembly, polyurethane heat preservation and various steel rock wool sandwich decorative board, fossil fragments subassembly is fixed on the masonry wall in the storing room outside, and correspond the junction transition have play the effect of broken cold bridge the polyurethane cushion, polyurethane heat preservation spraying is on the masonry wall body, various steel rock wool sandwich decorative board fixed connection is in on the fossil fragments subassembly.
The beneficial effects of the invention are as follows: the traditional heat preservation process in the refrigerator is changed, an outer heat preservation wall body and an inner heat preservation wall body are arranged on the outer side of a refrigerator storage room and the inner side of a hall, so that heat preservation effects are achieved, construction is convenient, construction cost is reduced as a whole, energy is saved, environment is protected, the inner heat preservation wall body comprises a polyurethane heat preservation layer, a wood keel and a color steel veneer, the polyurethane heat preservation layer is sprayed on a masonry wall body, the wood keel is fixed on the masonry wall body, and the color steel veneer is fixedly connected on the wood keel; the wooden fossil fragments play the effect of broken cold bridge, outer heat preservation wall body includes polyurethane cushion, fossil fragments subassembly, polyurethane heat preservation and various steel rock wool presss from both sides the sandwich decorative board, fossil fragments subassembly is fixed on the masonry wall body in the storing room outside, and correspond the junction transition to have the polyurethane cushion that plays the effect of broken cold bridge, polyurethane heat preservation spraying is on the masonry wall body, various steel rock wool presss from both sides sandwich decorative board fixed connection on fossil fragments subassembly, various steel rock wool presss from both sides the sandwich decorative board and regard as the decorative board, not only possess the function of closure, decoration, the rock wool layer of its sandwich also possesses certain thermal-insulated, heat preservation effect.
Preferably, the polyurethane thermal insulation layer is formed of polyurethane spray foam.
Preferably, the fossil fragments subassembly includes bracket board, channel-section steel conversion spare, horizontal main joist and vertical secondary joist, reserve the bolt hole on the polyurethane cushion, the bracket board is fixed with masonry wall fixed connection, the polyurethane cushion is in between bracket board and the masonry wall, the channel-section steel conversion spare with the fixed welding of bracket board, channel-section steel conversion spare perpendicular to masonry wall, horizontal main joist fixed welding is in on the channel-section steel conversion spare, vertical secondary joist welds on the horizontal main joist, horizontal main joist all has the predetermined distance of spraying polyurethane heat preservation thickness with the masonry wall.
Preferably, the transverse main joists are galvanized square steel pipes, and the longitudinal secondary joists are galvanized C-shaped steel.
Preferably, a mortar leveling layer is arranged on the outer side surface of the polyurethane heat insulation layer, and a steel wire mesh is fixedly connected in the mortar leveling layer.
Preferably, the self-adhesive heat insulation steam barrier film is paved on the mortar leveling layer, and the self-adhesive heat insulation steam barrier film is formed by compounding an aluminum film and an asphalt material.
Drawings
FIG. 1 is a schematic diagram of a refrigerator layout according to the present invention;
FIG. 2 is a schematic view of an external thermal insulation wall of a composite thermal insulation system for a refrigerator according to the present invention;
fig. 3 is a schematic view of an internal heat-insulating wall of a composite heat-insulating system applied to a refrigeration house according to the invention.
1 storage room, 2 through rooms, 3 masonry wall, 4 inner heat preservation wall, 41 polyurethane heat preservation, 42 wooden joists, 43 color steel veneer, 5 outer heat preservation wall, 51 polyurethane cushion block, 52 joist components, 521 support plates, 522 channel steel conversion parts, 523 transverse main joists, 524 longitudinal secondary joists, 53 color steel rock wool sandwich decorative board, 6 goods doors and 7 mortar leveling layers.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. Referring to fig. 1 to 3 of the drawings, according to an embodiment of the invention, a composite heat insulation system applied to a refrigeration house is provided with a storage room 1, one side of the storage room 1 is provided with a hall 2, a goods door 6 for entering and exiting goods is arranged between the hall 2 and the storage room 1, both the storage room 1 and the hall 2 are provided with masonry walls 3, the storage room 1 is correspondingly provided with an inner heat insulation wall 4 on the wall on the inner side of the hall 2, and the storage room 1 is correspondingly provided with an outer heat insulation wall 5 on the wall contacted with an external environment;
traffic lines are not directly generated in low-temperature rooms and outdoor spaces such as a freezer, a freezing room and a refrigerating room of a refrigerator, and a hall is generally arranged at a goods inlet and outlet passage of the cooling room, the freezing room, the refrigerating room and the like.
The inner heat-insulating wall body 4 comprises a polyurethane heat-insulating layer 41, a wood keel 42 and a color steel veneer 43, wherein the polyurethane heat-insulating layer 41 is sprayed on the masonry wall body, the wood keel 42 is fixed on the masonry wall body, and the color steel veneer is fixedly connected on the wood keel; the wood joist is used as a support joist of the color steel plate, and meanwhile, the function of a broken cold bridge is realized; the polyurethane heat-insulating layer is the core of the heat-insulating system and plays a main role in heat insulation; the color steel veneer only plays a role of decoration.
The outer heat preservation wall body 5 includes polyurethane cushion 51, fossil fragments subassembly 52, polyurethane heat preservation and various steel rock wool sandwich decorative board 53, and fossil fragments subassembly 52 is fixed on the masonry wall body in the storing room 1 outside, and corresponds the junction transition and has the polyurethane cushion 51 that plays the effect of broken cold bridge, and polyurethane heat preservation spraying is on the masonry wall body, various steel rock wool sandwich decorative board fixed connection is on fossil fragments subassembly. The color steel rock wool sandwich decorative board is used as a decorative board, has the functions of sealing and decoration, and the rock wool layer of the sandwich has certain heat insulation and heat preservation effects.
Specifically, the polyurethane thermal insulation layer is formed by polyurethane spray foam. The main material is polyurethane spraying foam, which is formed by reacting isocyanate and combined polyether. The polyurethane has the advantages of heat insulation, high electricity saving efficiency and green; the weight is light, and the load is reduced; the waterproof performance is excellent; long service life and strong adaptation environment; strong binding ability, good flame retardance and the like. It is used for heat insulation and water proof of refrigerator car, storage tank, pipeline, cold storage, beer fermentation tank and fresh-keeping barrel, and is also suitable for prefabricated polyurethane board, pipe shell, arc plate, etc.
The combined polyether contains a foaming agent, the boiling point of the foaming agent is low, and the foaming agent can be quickly vaporized after the air temperature exceeds the boiling point; under the action of foaming agent, catalyst, fire retardant and other assistants, the materials are mixed in special equipment and foamed in-situ through high pressure spraying.
In other embodiments, the keel assembly 52 includes a seat plate 521, a channel steel conversion member 522, a transverse main keel 523 and a longitudinal secondary keel 524, bolt holes are reserved on the polyurethane cushion blocks 51, the seat plate 521 is fixedly connected with the masonry wall, the polyurethane cushion blocks 51 are fixed between the seat plate and the masonry wall, the channel steel conversion member is fixedly welded with the seat plate 521, the channel steel conversion member is perpendicular to the masonry wall, the transverse main keel 523 is fixedly welded on the channel steel conversion member 522, the longitudinal secondary keel 524 is welded on the transverse main keel 523, and the transverse main keel 523 and the longitudinal secondary keel 524 are both in a predetermined distance with the masonry wall by spraying polyurethane insulation layer thickness.
In other embodiments, the transverse main runners 523 are galvanized square steel pipes and the 160 x 80 x 6 longitudinal cross runners 524 are galvanized C-section steel. The specification is c100×50×20×2.5.
In other embodiments, the outer side surface of the polyurethane heat-insulating layer is provided with a mortar leveling layer, and a steel wire mesh is fixedly connected in the mortar leveling layer.
In other embodiments, a self-adhesive thermal insulation vapor barrier is laid on the mortar leveling layer, and the self-adhesive thermal insulation vapor barrier is formed by compounding an aluminum film and an asphalt material.
(1) The construction process comprises the following steps: base cleaning, mounting of a wall surface steel plate support and a channel steel conversion piece (arranging a polyurethane cushion block between a support plate and a masonry wall surface and fixing by bolts of the support plate), mounting of a transverse main keel, a longitudinal secondary keel, spraying of a polyurethane heat-insulating layer, coating of an anti-cracking mortar leveling layer (internally provided with a steel wire mesh), self-adhesive heat-insulating steam-insulating film paving and mounting of a color steel rock wool sandwich plate facing.
(2) Before heat preservation construction, the structural main body and the like should be accepted and qualified by related departments. The perpendicularity and flatness of the wall surface base layer meet the national current construction and acceptance specification requirements. The outer base layer of the masonry wall should be cleaned before construction operation, and the base layer should be dry, clean, solid and smooth, and should not have floating dust, slurry dripping, greasy dirt, hollowness, edge tilting and the like.
(3) The steel plate support of the outer wall surface of the refrigeration house is separated from the masonry wall surface, so that a cold bridge is avoided, and only a rear embedded part can be adopted. The preformed hole on the polyurethane cushion block is consistent with the preformed hole on the support plate in position, the chemical anchor bolts are used for fixing the polyurethane cushion block on the wall surface through the preformed holes of the polyurethane cushion block and the steel plate support, and the polyurethane cushion block is arranged between the support plate and the wall surface to play a role of a broken cold bridge. The seat plate and the channel steel conversion piece are welded in advance, the steel plate seat is installed, and meanwhile the channel steel conversion piece is installed.
(4) Firstly, a transverse main keel is welded on a channel steel conversion piece, the main keel adopts a galvanized square steel pipe, the specification is 160 x 80 x 6, the distance between the main keel and a wall surface is required to be paid attention to during welding, the thickness of the polyurethane insulation layer cannot be ensured to be smaller than that of the polyurethane insulation layer, the keel is prevented from invading the insulation layer, and the thickness of the insulation layer is prevented from being influenced.
After the welding of the main joists is completed, welding of the vertical secondary joists is carried out, and the vertical secondary joists are galvanized C-shaped steel with the specification of C100-50-20-2.5. Similarly, the distance between the keel and the wall surface is also needed to be noted when the secondary keel is welded, so that the thickness of the polyurethane heat insulation layer cannot be ensured to be smaller than that of the polyurethane heat insulation layer, and the keel is prevented from invading the heat insulation layer to influence the thickness of the heat insulation layer.
The main joist and the secondary joist can be adjusted according to the stress of the facing of the outer wall, but the safety of the outer wall is ensured, and meanwhile, the positions of the steel pipes and the welding seams are required to be subjected to corrosion prevention treatment.
(5) The polyurethane heat-insulating layer needs to be sprayed from top to bottom in a layering way, the foam thickness of the first spraying of the priming layer is generally about 10mm, and the thickness of the subsequent single layer is controlled to be about 30 mm. The distance between the spray gun and the basal plane or the upper spraying finishing surface is preferably about 800mm, and the design thickness requirement is met after spraying for several times. In the spraying process, interval spraying is adopted, so that the polyurethane fully releases stress, and the property of the rigid foam polyurethane is more stable. The interval type spraying is characterized in that the interval type spraying adopts a transverse interval or a longitudinal interval, the transverse interval is generally set according to the distance between main keels and is generally 3-4 m, the spraying of a first span, a third span … … and the like is respectively carried out from top to bottom, and then the spraying of a second span, a fourth span … … and the like is carried out; the longitudinal intervals are generally set according to the spacing of the secondary keels, generally 3-4 m, from left to right or from right to left, and the construction sequence is similar to the transverse intervals, and the description is omitted here.
(6) After the polyurethane foaming spraying construction is completed for 48 hours, after the polyurethane foaming is stable, fixing a steel wire mesh on the surface of the polyurethane heat-insulating layer by using plastic heat-insulating nails, and then plastering by using anti-crack mortar.
(7) The self-adhesive heat-insulating steam-isolating film is formed by compounding an aluminum film and asphalt, and the self-adhesive function is realized by using the viscosity of asphalt. The self-adhesive heat-insulating steam barrier film is paved on the anti-cracking mortar leveling layer, the self-adhesive heat-insulating steam barrier film is paved from bottom to top, the lap joint position is not less than 100mm, the self-adhesive film on the upper side is ensured to cover the self-adhesive film on the lower side, and the paving is required to be smooth and orderly.
(8) After the heat-insulating steam-isolating film is paved, the color steel rock wool sandwich decorative board is installed to be an external facing. The rock wool sandwich decorative plate is fixed on the C-shaped steel secondary joist by self-tapping nails, the installation is straight and smooth, and the plate seam is closed by adopting a decorative pressing strip.
The heat preservation system used by the invention has good waterproof performance. Because of the on-site spraying, the foam holes are closed, the sealing rate reaches 95%, an integral waterproof layer is formed, no seam exists, rainwater cannot permeate from the holes, the construction cost is reduced, meanwhile, the foam holes are not easy to damage, the maintenance workload is reduced, and the later maintenance rate is reduced.
If the heat-insulating layer and the waterproof layer are separated, the construction cost is high, the construction period is long, and the polyurethane foam survives once, has heat-insulating and waterproof functions, and has low construction cost. The comprehensive single square meter manufacturing cost of the traditional internal heat-insulation process wall surface integral heat-insulation waterproof system is 1150-1250 yuan; when the external heat preservation technology is adopted, the comprehensive single square meter manufacturing cost of the wall surface integral heat preservation and water prevention system is about 1100 yuan, so that the better heat preservation and water prevention effect can be achieved, and meanwhile, the manufacturing cost can be saved.
Is beneficial to the realization of energy conservation and environmental protection. The core heat-insulating material of the heat-insulating system is polyurethane hard foam, has a heat conductivity coefficient of about 0.025, and is a material with good heat-insulating performance for buildings. By the aid of the method, operation energy consumption can be reduced to the greatest extent, and energy conservation and environmental protection in the operation process are facilitated.
The construction is simple and fast. The method adopts the high-efficiency polyurethane spraying machine, is simple to operate, and can realize the control of equipment by only three persons (one gunner and 2 control hands); each unit can be sprayed with about 200 square meters every day, the construction efficiency is high, and the construction progress is guaranteed.
For the device and the use method disclosed in the embodiments, since the device and the use method correspond to the method disclosed in the embodiments, the description is relatively simple, and the relevant places refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (5)

1. The composite heat preservation system is characterized in that masonry walls are arranged between the storage room and the through room, an inner heat preservation wall is arranged on the wall correspondingly positioned at the inner side of the through room, and an outer heat preservation wall is arranged on the wall correspondingly contacted with the outer environment;
the inner heat-insulating wall body comprises a polyurethane heat-insulating layer, a wood keel and a color steel veneer, wherein the polyurethane heat-insulating layer is sprayed on the masonry wall body, the wood keel is fixed on the masonry wall body, and the color steel veneer is fixedly connected on the wood keel;
the outer heat-insulating wall comprises a polyurethane cushion block, a keel assembly, a polyurethane heat-insulating layer and a color steel rock wool sandwich decorative plate, wherein the keel assembly is fixed on a masonry wall at the outer side of the storage room, the polyurethane cushion block playing a role of a broken cold bridge is transitionally arranged at a corresponding joint, the polyurethane heat-insulating layer is sprayed on the masonry wall, a mortar leveling layer is arranged on the outer side surface of the polyurethane heat-insulating layer, a steel wire mesh is fixedly connected in the mortar leveling layer, a self-adhesive heat-insulating steam barrier film is paved on the mortar leveling layer, and the color steel rock wool sandwich decorative plate is fixedly connected on the keel assembly;
the keel assembly comprises a support plate, a channel steel conversion piece, a transverse main keel and a longitudinal secondary keel, wherein the support plate is fixedly connected with a masonry wall, the polyurethane cushion block is fixed between the support plate and the masonry wall, the channel steel conversion piece is fixedly welded with the support plate, the channel steel conversion piece is perpendicular to the masonry wall, the transverse main keel is fixedly welded on the channel steel conversion piece, and the longitudinal secondary keel is welded on the transverse main keel.
2. The composite insulation system for a refrigerator according to claim 1, wherein the polyurethane insulation layer is formed of polyurethane spray foam.
3. The composite heat preservation system applied to a refrigerator according to claim 1, wherein bolt holes are reserved in the polyurethane cushion blocks, and the transverse main keels and the longitudinal secondary keels are both in a preset distance with the masonry wall for spraying polyurethane heat preservation layers.
4. The composite insulation system for a refrigerator according to claim 3, wherein the transverse main joists are galvanized square steel pipes and the longitudinal secondary joists are galvanized C-section steel.
5. The composite heat preservation system applied to a refrigeration house according to claim 1, wherein the self-adhesive heat insulation steam barrier film is formed by compounding an aluminum film and an asphalt material.
CN202210134303.7A 2022-02-14 2022-02-14 Be applied to compound heat preservation system of freezer Active CN114412006B (en)

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CN114412006B true CN114412006B (en) 2024-03-12

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Citations (17)

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