CN210134684U

CN210134684U - Freezer heat preservation system

Info

Publication number: CN210134684U
Application number: CN201920379439.8U
Authority: CN
Inventors: 黄达琦; 宋锴笛; 周宏军; 王兴; 苏涛峰; 黄金金
Original assignee: China Construction Second Engineering Bureau Co Ltd
Current assignee: China Construction Second Engineering Bureau Co Ltd
Priority date: 2019-03-22
Filing date: 2019-03-22
Publication date: 2020-03-10
Anticipated expiration: 2029-03-22

Abstract

The utility model provides a freezer heat preservation system belongs to building application technical field. The refrigeration house heat insulation system comprises a floor heat insulation system and a roof panel heat insulation system, wherein the floor heat insulation system sequentially comprises a concrete bottom layer, a first steam-insulating layer, a first heat insulation layer, a first waterproof coiled material layer, a second steam-insulating layer and a concrete surface layer from bottom to top; the roof board heat insulation system comprises a concrete outer layer, a non-woven polyester fiber cloth layer, an isolation layer, a second heat insulation layer, a second waterproof coil material layer, an inner steam insulation layer and a concrete inner layer from outside to inside in sequence. The utility model discloses a set floor insulation system and roof boarding heat preservation system with freezer heat preservation system to set up different insulation construction respectively to floor insulation system and roof boarding heat preservation system, improve the heat preservation quality of freezer, make the freezer have good heat insulating ability.

Description

Freezer heat preservation system

Technical Field

The utility model belongs to the technical field of the building is used, concretely relates to freezer heat preservation system.

Background

China is a country with energy shortage, and has been insufficient in energy supply for many years continuously, and a cold storage in a cold chain is a large energy consumption household, so that the construction of a safe and energy-saving cold storage is urgent. At present, the extrusion molding insulation board still stops in the construction of the insulation of the inner wall of the refrigeration house in a traditional anchor bolt mechanical fixing mode for structural fixation, and the insulation board and the gas insulation material are fixed on the wall body by using an anchoring part. For heat insulation projects with strict requirements on gas insulation and heat insulation, a traditional anchor bolt mechanical fixing mode can seriously damage a gas insulation layer and the structural strength of a wall body. If the air-isolating layer is damaged or leaked, cold air is leaked and cannot be maintained, so that the energy consumption is increased, and the operation cost of the refrigeration house is increased.

The roof is the topmost part of the roof of the house, and the heat preservation, steam insulation and waterproof effects of the roof are very important. The existing roof is generally made of concrete directly, so that the roof has the problem of poor heat insulation effect, and water leakage is easy to occur along with the increase of the service time, and water vapor in a room often enters a heat insulation layer to cause poor heat insulation effect; in the existing roof insulation structure construction, the insulation performance of the traditional insulation structure adopted at present cannot meet the requirements of the latest design specifications, great difficulty is brought to building elevation control, and the insulation performance and the fire-proof grade of the traditional material basically cannot meet the performance requirements of a permanent building after the reconstruction of the reconstruction building.

The existing refrigeration house system has the problems of poor cooling effect, cracking, poor sealing property and the like due to unreasonable design or unsuitable used materials, and has high repair rate after being used for a period of time.

Disclosure of Invention

The utility model discloses a freezer heat preservation system has solved the cooling effect of freezer among the prior art not good, and the not good scheduling problem of leakproofness makes the freezer have better thermal insulation performance.

In order to achieve the above object, the technical solution of the present invention is:

a heat preservation system of a refrigeration house comprises a floor heat preservation system and a roof panel heat preservation system, wherein the floor heat preservation system sequentially comprises a concrete bottom layer, a first steam-proof layer, a first heat preservation layer, a first waterproof coiled material layer, a second steam-proof layer and a concrete surface layer from bottom to top;

the roof board heat insulation system comprises a concrete outer layer, a non-woven polyester fiber cloth layer, an isolation layer, a second heat insulation layer, a second waterproof coil material layer, an inner steam insulation layer and a concrete inner layer from outside to inside in sequence.

Preferably, the concrete bottom layer is provided with a double-layer bidirectional reinforcing steel bar for reinforcement.

Preferably, the first steam-insulating layer is a PE film with the thickness of 0.12mm, and the second steam-insulating layer and the inner steam-insulating layer are polyurethane foam coatings.

Preferably, first heat preservation, second heat preservation are 200mm for thick, compressive strength is greater than 350kpa, and coefficient of heat conductivity K is 0.0289 w/m.k's extrusion molding heated board staggered joint overlap joint to form to fixed with special mounting and steel joist, be equipped with polyurethane foaming in the overlap joint gap and repair between the counter plate.

Preferably, the isolation layer is low-strength mortar with the thickness of 10 mm.

The utility model has the advantages that:

the utility model discloses a set floor insulation system and roof boarding heat preservation system with freezer heat preservation system to set up different insulation construction respectively to floor insulation system and roof boarding heat preservation system, improve the heat insulating ability of freezer.

Drawings

Fig. 1 is a schematic structural diagram of the heat preservation system of the refrigeration storage of the utility model.

In the figure: 11-concrete bottom layer; 12-a first vapour barrier; 13-a first insulating layer; 14-a first waterproof roll layer; 15-a second vapour barrier; 16-concrete surface layer; 21-concrete outer layer; 22-a non-woven polyester fiber cloth layer; 23-an isolation layer; 24-a second insulating layer; 25-a second waterproof roll layer; 26-inner vapor-separating layer; 27-inner layer of concrete.

Detailed Description

The utility model discloses a freezer heat preservation system has solved the cooling effect of freezer among the prior art not good, and the not good scheduling problem of leakproofness makes the freezer have the better performance of cooling, leakproofness, isolation effect.

For better understanding of the technical solutions of the present invention, the technical solutions of the present invention will be described in detail below with reference to the drawings and specific embodiments.

Referring to fig. 1, a freezer heat preservation system includes floor heat preservation system and roof boarding heat preservation system, floor heat preservation system is from supreme concrete bottom 11, first vapour barrier 12, first heat preservation 13, first waterproof roll material layer 14, second vapour barrier 15, concrete top layer 16 of being in proper order down. The concrete bottom layer 11 adopts 120 mm-thick fine aggregate concrete as a base layer, a double-layer bidirectional reinforcing steel bar reinforcing layer is arranged inside the base layer, and metal aggregate is further arranged on the surface of the base layer; the first steam-isolating layer 12 is a PE film with the thickness of 0.12 mm; the first heat-insulating layer 13 is an extruded polystyrene board which has the thickness of 200mm, the compression strength of more than 350KPa, the heat conductivity coefficient K of 0.0289w/m.k and the heat-insulating effect of B1 grade, is a material with high compression resistance, low water absorption, moisture resistance, air impermeability, light weight, corrosion resistance and super ageing resistance, is applied to a heat-insulating system of a refrigeration house, and can improve the water resistance, moisture resistance and lasting heat-insulating performance of the refrigeration house; first waterproofing membrane layer 14 is the two-sided self-adhesion waterproofing membrane of BAC of thickness 1.5mm, improves the waterproof performance of heat preservation system, and second vapour barrier 15 adopts polyurethane foam coating, strengthens the dampproofing vapour barrier property of freezer.

The construction method of the floor slab heat insulation system comprises the following steps:

1. paving fine stone concrete on the bottom layer of the floor slab, reinforcing the floor slab by using double-layer bidirectional reinforcing steel bars, paving a layer of metal aggregate on the surface of the concrete bottom layer to serve as a wear-resistant surface layer, wherein the thickness of the fine stone concrete is 120mm so as to ensure that the bottom layer structure is compact;

2. according to the construction site conditions, a first steam-isolating layer paving direction is established on the bottom layer of a floor slab, paving lines, paving a heat-insulating layer according to the planned lines, a PE film with the thickness of 0.12mm is used as a first steam-isolating layer to be adhered to the concrete bottom layer, then an extruded polystyrene board is paved on the PE film, the extruded polystyrene board heat-insulating layer is formed by staggered joint overlapping of extruded heat-insulating boards with the thickness of 200mm and the compression strength of more than 350kpa and the heat conductivity coefficient K of 0.0289w/m.k and is fixed by cold bridge-resistant plastic and steel keels, polyurethane foaming is arranged in the overlapped joints to repair the boards, the thicknesses of two adjacent boards are consistent when the boards are paved, the side lines are taken as straight lines, and the anchor bolts are arranged at the same side;

3. the asphalt base oil is stirred evenly and is sprayed on the extruded polystyrene board evenly by a sprayer to form continuous coverage, and in order to ensure the waterproof effect, the lap joint width is ensured to be more than 10cm at the lap joint position of the waterproof coiled material; after the base oil is dried, paving and pasting the waterproof coiled material: reasonably positioning according to the condition of a construction site, determining the paving direction of the waterproof coiled material, tearing off a PE film of the waterproof coiled material, and paving the coiled material on the exposed high-molecular modified asphalt surface from low to high along the flowing water direction; after the coiled materials are paved, scraping and pressing air from the middle to the other side of the lapping direction of the coiled materials by using a roller;

4. then polyurethane foam paint is used for coating, so that the moisture-proof and steam-proof performance of a refrigeration house is enhanced, and the heat preservation effect is enhanced; and finally, paving a concrete surface layer, and finishing construction.

The roof board heat insulation system comprises a concrete outer layer 21, a non-woven polyester fiber cloth layer 22, an isolation layer 23, a second heat insulation layer 24, a second waterproof roll material layer 25, an inner steam insulation layer 26 and a concrete inner layer 27 from outside to inside in sequence. The roof board heat preservation system has good isolation performance, water vapor is isolated, wherein the outer layer 21 of concrete is fine stone concrete with the thickness of 40mm, the non-woven polyester fiber cloth layer 22 is used as waterproof base cloth of a roof, cracks can be prevented, the sealing performance is enhanced, the isolation layer 23 is low-strength mortar with the thickness of 10mm, the water vapor is well isolated, the second heat preservation layer 24 adopts an extruded polystyrene board, and the extruded polystyrene board is a material with high compression resistance, low water absorption rate, moisture resistance, air impermeability, light weight, corrosion resistance and super aging resistance, and can improve the water resistance, moisture resistance and lasting heat insulation performance of a refrigeration house when being applied to the refrigeration house heat preservation system; the second waterproof roll layer 25 is an SBS modified asphalt waterproof roll and has a good waterproof effect.

The construction method of the roof board heat insulation system comprises the following steps:

1. the outer layer of the floor slab adopts fine stone concrete with the thickness of 40mm, a non-woven polyester fiber cloth layer is laid on the concrete to be used as a waterproof base fabric of the roof, sand, cement and the like are attached to the base fabric, cracks can be prevented, and then low-strength mortar with the thickness of 10mm is coated on the outer layer of the floor slab to well isolate water vapor;

2. sticking an extruded polystyrene board on the surface of the mortar, wherein an extruded polystyrene board heat-insulating layer is formed by overlapping extruded heat-insulating boards with the thickness of 200mm, the compression strength of more than 350kpa and the heat conductivity coefficient K of 0.0289w/m.k in a staggered manner and is fixed by cold-bridge-resistant plastic anchor bolts and steel keels, polyurethane foaming is arranged in the overlapped gaps for repairing the boards, the thicknesses of two adjacent boards are consistent when the boards are laid, and the edges are required to be in a straight line and the branches are arranged at the same time;

For the test the utility model discloses the heat preservation effect of freezer, in winter a day with the freezer cooling to-10 ℃, outdoor ambient temperature is about 7 ℃ then, about one third of storehouse dress product, shut down, 8 hours back freezer intensification 0.6 ℃, known according to the test result, this programming rate is less than conventional scope, explains that the freezer has better thermal insulation performance.

The utility model has the advantages that:

the utility model discloses a set floor insulation system and roof boarding heat preservation system with freezer heat preservation system to set up different insulation construction respectively to floor insulation system and roof boarding heat preservation system, improve the heat preservation quality of freezer, make the freezer have good heat insulating ability.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A heat preservation system of a refrigeration house is characterized by comprising a floor heat preservation system and a roof panel heat preservation system, wherein the floor heat preservation system sequentially comprises a concrete bottom layer, a first steam-insulating layer, a first heat preservation layer, a first waterproof coiled material layer, a second steam-insulating layer and a concrete surface layer from bottom to top;

2. The freezer thermal insulation system of claim 1, characterized in that the concrete bottom layer is provided with a double layer of bi-directional reinforcing steel for reinforcement.

3. The freezer thermal insulation system of claim 1, characterized in that, the first vapour barrier is to lay 0.12mm thick PE membrane, second vapour barrier, interior vapour barrier be polyurethane foam coating.

4. The freezer heat preservation system of claim 1, characterized in that, first heat preservation, second heat preservation be 200mm thick, compressive strength is greater than 350kpa, heat conductivity K0.0289 w/m.k's extrusion molding heated board fissure of displacement overlap joint forms to it is fixed with special mounting and steel joist, is equipped with polyurethane foaming in the overlap joint gap and repairs between the board.

5. The freezer thermal insulation system of claim 1, characterized in that the isolation layer is low strength mortar with a thickness of 10 mm.