Selection and design of cold storage doors-Changzhou yanghu refrigeration equipment co., LTD.

Selection and design of cold storage doors

发布时间：

2016-11-17

Under normal circumstances, the cold storage door, as one of the cold storage equipment, only accounts for less than 10% of the cost of the entire system. After the whole system is put into use, it almost becomes the "facade" of the whole system. Every day in and out, it needs to open, close and lock the door. The highest frequency can even reach 1000 times/day. If there is a problem during this period, it will cause leakage and leakage, which will affect the production progress. If it is large, it will affect the corporate image and even cause safety accidents. Therefore, it is necessary for us to pay enough attention to cold storage doors, and it is urgent for the country to formulate and improve our country's cold storage door standards with reference to the standards of developed countries in Europe and the United States. 1) Pass

1) Usually, when we select and design, we firstly choose the thickness of 120~150mm when the temperature exceeds 60°C according to the temperature difference between the inside and outside of the warehouse. If the thickness exceeds this thickness, it has no practical significance, because the conduction of the sealing strip at this time. Heat dissipation is the main factor of cooling loss. MTH's approach is to add a second sealing strip, which can well prevent the loss of cold air.

2) The material of the panel mainly includes sprayed color steel plate, stainless steel, glass fiber reinforced plastic, ABS, PE, aluminum plate, etc. The choice of the panel material is mainly based on the environment of use. In ordinary environments, sprayed color steel plate (the quality of the color steel plate must pass the test) can meet the requirements. Stainless steel and other materials are mainly used in food factories, seafood, or other environments with certain corrosion. ABS, PE, FRP, etc. are emerging materials in recent years, with the advantages of corrosion resistance, collision resistance and light weight.

3) The door frame is a key factor of the cold storage door, its quality directly affects the thermal insulation effect of the cold storage door. The standard practice of MTH is the all-inclusive method of PVC profiles (which can be outsourced with other materials), which enhances the thermal insulation on the one hand and the load-bearing capacity of the door frame and guide rails on the other hand. In a low temperature environment, the thickness of the side door frame insulation should exceed 100mm. The door frame should try to use materials with poor thermal conductors such as PVC, FRP and other materials should be the first choice.

4) When selecting and designing, we should take into account the opening direction of the door, the size of the clear door opening, the style of the threshold, etc. According to the size of the clear door opening, the thickness of the insulation layer should be reserved to further calculate the reserved door opening for civil construction and pre-embed it according to a certain size. pieces. The best way is for cold storage door manufacturers to participate in the design, which can avoid many cross-problems and hidden dangers in the later stage.

5) Safety performance is always our top priority in production. According to EU standards, the cold storage door must have a qualified escape function, that is, after the cold storage door is locked, the person can easily open the lock to escape from the inside, and no additional tools are required. Other problems such as cold leakage, in this regard, our domestic locks often have the problem of freezing and cold leakage after escaping. Regarding the electric system, there are at least two safety anti-crowding protections, which are mostly not available in our domestic systems.

In short, when we choose the cold storage door and its surrounding facilities, we should focus on the following factors: the temperature difference determines the thickness, and the largest equipment in and out determines the size of the clear door opening (generally, each side should exceed the maximum equipment size by 150~400mm), if necessary The strength support determines the form of the door frame, the environment determines the material, the normative operation of the workers determines the necessary anti-collision measures, the necessary safety escape function, the anti-pinch and anti-collision functions as far as possible, and other needs to be considered according to the use requirements, such as air curtains , between cages, interlocks, quick switches, etc.