- Insulation work is the basis for cold room works, with thermal insulation performing good work and directly affecting electricity costs, temperature stability and life of equipment.
- Cold roomthermal insulation generally use polymer (PU) or potassium permanganate (PIR) hotinsulated panels, which recommend the use of mineral cotton as treasurythermal insulation.
- Insulation work prices are mainly cooked: materials, thickness, surface material, area, target temperature, cold room door, floor protection against unfrozen conditions of work.
- The complete cold room price is buried in the refrigeration unit, electricity, temperature monitoring and maintenance, so it must be clear about the price bag.
- Accurate quotations are up to the gate. In comparing bids, the net bath price is better than the specifications per item.
Preamble: It is important to point out the work of ininsulation?
Hong Kong is also hot and wet in summer, with high temperatures both inside and outside cold room. The cold room, refrigerated warehouse,walk-in cold room is not operational for a year 365 days, as long as the thermal insulation is good, the outer flash heat and wet gas will continue to infiltrated and the refrigeration unit is more struggling. The result was an increase in electricity costs, a stable temperature dam and even early damage to equipment.
Multiple visitors ' queriescold room priceWhenever, the first problem was a few square metres of money? It is a uniform criterion for the price of its work in realins, as materials, thickness, temperature and site conditions make it far cheaper. The newspaper article, Kam Hing Engineering helped you to break down the Einsulation Work Price Feasing Points, sympathetic programme points and to keep abreast when compared with the buried bids, e.g. to a genuinely appropriate programme of work in cold room.
insulation work with cold room basic knowledge
insulation work is fertile?
Insulation work refers to reduced heat transfer works with thermal insulation materials. ⁇ refrigeration engineering injection, the role of ininsulation work is to prevent the infiltration into cold room of external flash heat with water vapours, which can maintain low temperatures with less energy. Insulation work is well applied, including cold room pools, refrigerant runwaythermal insulation, cooling thermal insulation etc. The ⁇ cold room works in the face, with the most core chromosomal panels, cold room gate and floorthermal insulation.
Insulation work is correlated with refrigeration engineering?
One cold room can be divided into two parts simply:
- thermal insulation system: Einsulated panels, cold room gate, floorthermal insulation, sealed envelope to cover cooling chromosote
- Refrigeration system: compressors, refrigerators, hairs, flashers, temperature controllers, responsible for cooling.
Thermal insulation performed poorly, and the refrigeration unit was to operate for long periods of time, with an increase in the cost of electricity homogeneous items. As a result, insulation workrefrigeration engineeringIt is important to plan together. Information on the operation of refrigeration system points can be found on the service pagecold room refrigeration。
Cold room, chilled room,freezer room,walk-in cold room, refrigerated warehouses?
| Name | General temperature range | Common uses |
|---|---|---|
| chilled room／cold storage facility | Approximately 0°C to +10°C | apples, dairy products, beverages, part of drugs |
| freezer room／walk-in cold room | Approximately -18°C to -25°C | Unfrozen meat, seafood, emergency food, copper |
| Emergencies | Approximately - 30°C or below | Rapid unfrozen food |
| refrigerated warehouse/refrigerated warehouse | By cargo subdivision | Logistics, wholesale, import and export |
| wine cellar | General +12°C to +16°C | Storage of red alcohol while wet control |
The ⁇ cold room aluminium system states that the remaining names are distinguished mainly by temperature, use and size. The lower the temperature, the higher the demand for insulation work and the corresponding increase in the cost of work.
cold roomthermal insulation materials comparison
The most important of the judgement thermal insulation material is the coating heat coefficient (growth value, unit W/m K). The lower the value, the better the thermal insulation. In addition, cold roomthermal insulation ultraviolet defence tide. If the water vapour insulation layer is infiltrated into thermal insulation, the effect of thermal insulation will be drastically reduced, with zero environmental refrigeration and damage to the treasury.
| Materials | General guidance heat coefficient (reference) | Detection | cold room applications |
|---|---|---|---|
| Polymer (PU) | Approximately 0.022–0.026 W/m K | Preconception structure, tide | cold room heartinsulated panels, mainstream selection |
| Polymonium nitrate (PIR) | Approximately 0.022–0.025 W/m K | Preconception structure, tide | Thermal insulation performance is similar to PU, with fire resistance generally better and cost higher |
| Digested polystyrene (XPS) | Approximately 0.029–0.035 W/m K | Low water intake | Often used incold roomfloorthermal insulation |
| foam polystyrene (EPS) | Approximately 0.033–0.040 W/m K | General | More economically, thermal insulation performance is less than PU, with more thickness to achieve the same effect |
| Mineral cotton/carn | Approximately 0.035–0.045 W/m K | fibre structure, reduced intake and post-humidity performance | Fire patience, but general tumours are suitable for cold room bank bodythermal insulation |
Most of the decomposition cold room is used by PU ⁇ heartinsulated panels?
PU ⁇ heartinsulated panels will have the following advantages between two metal floors of polyurethane foams:
- Low guidance heat coefficients and less thickness required for the samethermal insulation effects, allowing more space within the base
- Precautionary structures, suitable for wet weather in Hong Kong
- Prefabricated painting, shorter construction time and later convenience of expansion or demolition
- The surface may thicken steel plates or unchest steel plates, in conjunction with derivative requirements
insulated panels ' surface material point?
| Surface material | Special characteristics | Availability |
|---|---|---|
| Column steel plate | Lower cost and selection | Generalchilled room,freezer room, refrigerated warehouse |
| Reflection of steel plate | Corrosure, easy to clean and higher costs | Food processing, central kitchens, breeding requirements |
insulated panels thickness points?
Insulated panels ' thickness directly affects thermal intake rate. A simple heat-heating formula can be used to estimate thermal infiltration of panels per square metre:
PU insulated panels ( ⁇ 0.022 W/m.K), outdoor temperature assumptions 35°C, purely model thickness effects, unspecified crunch, cold room door, floor and open gates, taken into thermal volume:
| insulated panels thickness | chilled room (Case +2°C, temperature 33°C) | freezer room (kuin -20°C, temperature 55°C) |
|---|---|---|
| 75mm | Approximately 9.7 W/m2 | approximately 16.1 W/m2 |
| 100mm | Approximately 7.3 W/m2 | approximately 12.1 W/m2 |
| 150mm | Approximately 4.8 W/m2 | Approximately 8.1 W/m2 |
| 200mm | Approximately 3.6 W/m2 | 6.1 W/m2 |
Two points can be reached from the above table:
- Lower temperature, higher thicknessAs well as 100 mm, the poor lezer room hot infiltration ranged from chilled room ⁇ 1.7 times.
- Reduction in thickness benefits: 75mm plus 100 mm, freezer room approximately 4 W per square metre. However, by 150 mm and up to 200 mm, only about 2 W is less. As a result, the better the thickness of the clouds, the cost of buried is space.
Industry generalinsulated panels thickness reference
| cold room type | General PU insulated panels thickness |
|---|---|
| chilled room/cold storage facility (0°C above) | Approximately 75mm to 100 mm |
| freezer room/walk-in cold room (approximately -18°C to -25°C) | Approximately 100 mm to 150 mm |
| Eagle Rock (some - 30°C or below) | Approximately 150mm to 200 mm |
Physical thicknessCold room design and designPhases are determined by environmental temperature, cold room location (e.g. near windows, astronomy, heat source of the roof), budget and energy efficiency objectives.
9 major factors affecting the cost of work ininsulation
1. thermal insulation materials
PU, PIR, EPS and other materials are co-existed. PIR fire resistance is generally better, but at higher cost. EPS is even more equitable, but it requires more arduous results.
2. Insulated panels thickness
The higher the thickness, the higher the cost of materials. The freezer room and the emergency unfrozen treasury need to be thicken, with a price of money naturally higher than chilled room.
3. Surface material
Frequent steel surfaces are usually more dried than sterile steel plates, but are more durable and easy to clean.
4. Reservoir homogeneous
Insulated panels are measured by wall, astronomical and total floor area. Orthopaedic rules, spinnings or migrating to the bottom cold room of the floor will increase manual congeners if they are to be matched by additional entry.
5. Target temperature
The lower the temperature, the more thick the Einsulated panels, the cold room door is tied to frozen heat and the floor is frustrated, with a significant increase in the overall cost of work for ininsulation.
6. Cold room type
There is a large gap between open gates, pushers and fast door price. Frequency of accessrefrigerated warehouse engineeringMost need fast valves or winds, with higher pre-investment but can reduce cool erosion.
7. floorthermal insulation and protection
The freezer room is chronically sporadic, and the bottom-floor water plumbing is likely to flourish, causing the floor mounting, i.e. frustrating inflation. As a result, the freezer room and refrigerated warehouses are generally to be floorthermal insulation and, as appropriate, frozen measures at higher costs than chilled room.
8. Increments
A cold room is divided into more temperate areas, with the spacing of walls and the insulated panels and cold room door usage increasing.
9. On-site construction conditions
The building floor, the use of a lift machine, the need to move, the time limit for the construction of the dam, the size of the tunnel and the need to dismantle the old cold room all affect the cost of manual and transportation.
Cold room price is made up of copper?
The fact that the price of cold room is equal to the cost of the insulated panels is only part of its work. A complete cold room offer usually includes the following items:
| Item | Content |
|---|---|
| insulation work | Wallboards, ceilings, floorthermal insulation, sealed seals, receipts |
| cold room gate | Gates, pushers or fast gates, door boxes to prevent froze heating, rubber articles, security devices |
| Refrigeration system | compressor/refrigeration unit, evaporation, flash, refrigerant tube and pipethermal insulation |
| Electricity and control | Electrical receptacles, appliances, temperature control, cyanide control, inner lighting |
| Water drainage | Flood discharge plumbing, freezer room to be processed |
| Temperature monitoring | Temperature records, hyper temperature alerts (freezer room plates with relevant requirements) |
| Construction and transportation | Transport, cooking, dismantling and clean-up |
| Testing and handover | Pressure tests, vacuum, refrigerant, temperature test |
| Maintenance and post-sale | Maintenance period, regular maintenance arrangements |
Therefore, comparisoncold room priceThe package must be clear on a case-by-case basis. There is a good price for quotations, which may be due to leakage of electricity, floor or temperature monitoring.
Cold room type ⁇ thermal insulation requirements
chilled room engineering
The temperature is moderate and the insulated panels are relatively small. The focus is on temperature stability and the avoidance of refrigeration.
chilled room installation ⁇freezer room engineering
To be more thick ininsulated panels, cold room door would have frozen heating and the floor would be thermal insulation and unfrozen.
freezer room installation ⁇walk-in cold room engineering
Spatial details are to be relocated with the refrigeration unit position on the floor floor. Catering uses can be considered without steel surfaces.
walk-in cold room installationrefrigerated warehouse engineering
Large and frequent access, fast doors and floor loads are most important insulation.
refrigerated warehouse engineering ⁇Cold Storage Facilities
Drugs and medical material are sensitive to temperature fluctuations, and thermal insulation cooperates with temperature records and alerts.
Cold storage facility engineering ⁇wine cellar
Wet wet, thermal insulation, while taking into account the fluid and low-earth dynamics.
wine cellar engineering ⁇A sample comparing insulation job offers?
Pre-price preparation of information
- Storage of goods with object
- Cold room approximate size (long, large, high)
- On-site photographs or pictures
- Electricity supply
- Frequency of access, fast gate
- Projected completion date
A detailed list can be consultedPre-examination information。
Check-by-case checking when compared bids
| Checking of projects | The question of clarity is asked. |
|---|---|
| insulated panels | Use of copper materials? How thick? The surface steel plates are sterilized? |
| floor | Are the floorthermal insulation? Freer room? |
| cold room gate | Type of copper? Is there a door box for heating? Is there a safe opening mechanism in the bank? |
| refrigeration unit | Laptops? The refrigeration point is counted? |
| Electricity | Electrical access to cable bags? If electricity is to be added? |
| Temperature monitoring | Have a cloud temperature record with an hyper temperature warning? |
| Construction | Transport, cooking, demolition of old parcels? |
| Maintenance | (b) Several patient maintenance periods? Are there regular maintenance services at a later date? |
Receipt and acceptance of sterile work quality method
- Copper seals: The receptacle of the insulated panels is properly sealed and clearly depressed.
- Crude clouds: After a certain period of operation, the outer walls, doorboxes should have concrete water or scrap.
- cold room door seal: Laptops are tightly placed after the gate and leakproof. The freezer room gatebox is functioning properly.
- Line crossing wallsrefrigerant tubes, electrical cables across the insulated panels ' positions are equipped with thermal insulation seals.
- Rain temperature test: Cold room can be reduced to the target temperature within a reasonable time and stability is maintained.
- DocumentationRequirement for insulated panels ' specifications, refrigeration unit information and maintenance provisions.
The ultraviolet is closed and doorboxed, often on behalf of a hot bridge, i.e., the refrigerant runs, tube lines or direct loss of structural position. The details of tumours are in the process of being stereotyped.
Common insulation work error zones
Missersion 1: petty cash only
PPPs may be used in smaller or poorer insulated panels, or leaked floorthermal insulation. The prelude may be even more expensive for electricity and maintenance per month thereafter.
Errency II: The better the thickness of the panels
Thermal computation can be seen, with a gradual reduction in thickness. Excessive thickness can only increase costs to reduce the space in the treasury, the most important being the appropriate thickness of temperatures.
Errency III: Looking at the floor withcold room door
The wall is fed but the floor thermal insulation, cold room door seals are lost. The freezer room floor was handled well and there could be unfrozen inflation.
Missquad IV: ⁇ thermal insulation materials
Fibrous materials, such as mineral cotton, can be found to fall significantly in the effects of sulation and suitable for cold room reservoirmal insulation.
Breaked area 5: Completed dressing
The ageing of the rubber, the damage to the sealed seals and the incalculation of the doorbox will result in a gradual change in the effect of thermal insulation. Regularcold room maintenanceIt is important.
insulation work maintenance and extended lifetime
- Periodic inspection and replacement of old plutonium cold room door rubber
- Crude sealed rubber, which is fractured to be filled
- Looking out of the outer wall, door boxes or clouds
- Avoiding forklift or hand drive to ininsulated panels
- freezer room gatebox heating with drain pipe heating to test regularly
- Concretes are regularly cleaned to reduce the burden of refrigeration systems
If cold room is found to be sufficiently frozen, refrigerated or leaked, reference can be madeCold Room RepairsFrequent malfunctions, or direct contact with me to arrange inspections.
Insulation work price common problems
cold roominsulation work price point?
The material and thickness of the panels, surface materials, treasury areas, target temperatures, cold room door type, floorthermal insulation and protection, on-site construction conditions are affected by transport cooking. The complete cold room price is buried refrigeration unit, power-to- temperature monitoring, and it is generally up to the door level for accurate bids.
freezer roominsulated panels are thick?
The industry generally refers to chilled room approximately 75–100mm, freezer room orwalk-in cold room (18°C to -25°C) about 100–150 mm and an acute freeze bank (-30°C or below) about 150–200 mm. The physical thickness is calculated on the basis of environmental temperature, location and energy efficiency requirements.
Is the better the panels insulated?
It is certain. Sickness could reduce heat infiltration, but benefits would be reduced gradually and cost-sharing space would increase. The appropriate thickness of the same-use plutonium should be treated at temperatures, along with bricks, cold room door cobalt.
Cold roomthermal insulation can be used as mineral cotton?
Mineral cotton is fibrous material, and wet thermal insulation performance is expected to decline significantly. The cold room and external temperatures are very poor, and water vapour is easily infiltrated into concrete or even ice, so cold room is generally used in closed structures to PU or PIR ⁇ insulated panels.
The comparativecold room offer is left to be redundant?
The comparing of panels materials, thickness and surface material, cold room door, floor processing, refrigeration unit brand and refrigerant, electricity, temperature monitoring, maintenance period with post-sale service packages. It is easy to miss only the general price specifications.
Summary
Insulation work price earns a one-size-fits-all standard. The material, thickness, temperature, cold room door and floor-to-work conditions all affect the final offer. The ⁇ insulation work programme should be matched by appropriate specifications to the temperature of the goods, and the price content should be compared on a case-by-case basis, taking into account the cost of future cooking and maintenance.
Kam Hing Engineering and Trading Co. Limited is professionally engaged in various types of large-scale cold room, thermal insulation and maintenance works, including large pharmaceutical warehousing, logistics warehouses, Wine cellar and food refrigerated warehouses, providing one-stop services for project design, procurement, installation, periodic inspection and maintenance. If more is known, intimidation can be avoidedAbout us、Our clientsSame asProject gallery。