In the daily use of the business, paying more attention to the maintenance and maintenance of the cold storage can not only prolong the overall service life of the cold storage, but also greatly improve the efficiency ratio of the refrigeration system.

Cold storage can be divided into ammonia refrigeration and fluorine refrigeration according to the refrigeration system. If the cold storage with ammonia refrigeration is well maintained, the service life is about 15 years, and the service life of the cold storage with fluorine system is about 20 years.

Some problems often encountered by cold storage installation companies:

(1) Cold storage preset: There are some preset units and individual preset positions, because there is a little misunderstanding about the awareness of the moisture-proof, air-insulating and thermal insulation layer of the cold storage. There is a sense of confusion in the impact of operation. It is felt that whether the waterproof and air barrier is used or not has a great impact on the thermal insulation effect of the cold storage, and even more, there is not much difference between whether it is done or not, what material is used to make it, because this preset Close, guarding the gate is not in place.

(2) The lack of strict control of the gate during the start of construction: In the process of starting the construction, the lack of strict control of the gate by a functional department is also the main reason.

Since the reform and opening up, the construction scale of the installation of cold storage in my country has increased from small to large, from small to large, and the rapid progress has been made all over the country. The installation of cold storage in coastal areas and fruit and vegetable production areas has progressed more rapidly, and it has occupied a considerable share of the national economy. However, until now, there are still some serious problems in the design and construction of the cold storage, resulting in a reduction in the number of years of use of the cold storage and serious consumption of energy and substances, which greatly increases the operating cost of the cold storage and weakens the company's performance. Competitive experience. When the preset temperature difference on both sides of the envelope is equal to or greater than 5°C, an air barrier should be installed on the side with the higher temperature. However, this article is not listed as a mandatory clause, because it is not strict enough in implementation, and the lack of awareness of waterproof and gas insulation in all links from the presetting to the start of construction of the cold storage, the loss brought to the operation of my country's refrigeration companies is quite serious. .

(3) The private opinion of the cold storage construction company: the private opinion of the construction unit is the main cause of the problem;

The above three points may lead to the shortening of the service life of the cold storage, and the energy consumption during the use of the cold storage is also relatively serious, so we must fundamentally improve it to increase the service life of the cold storage. For example, a cold storage construction unit deems it appropriate and uses the on-site spray polyurethane foam insulation material, but does not set up a gas barrier and moisture-proof layer, and even does not wipe the Shimin soil mortar after some cold storage masonry, and directly sprays the polyurethane foam layer. They do not correctly think that the hard foam will form a skin. They don’t know that every spraying will damage the skin on the upper layer, and the hot and cold water vapor will suffer serious damage to the thermal layer if there is no barrier. Destruction, the temperature of the warehouse is quite uncertain, which brings great difficulties to the operation of the cold storage.

In addition, after many years of use of the cold storage, due to the aging of the refrigeration equipment and insulation materials, the cooling speed of the cold storage is very slow, and even the temperature required for storage cannot be reached, and the power consumption will also increase. To a certain extent, it will also Lead to the weakening of the cold storage life.

So, what can we do to prolong the service life of the cold storage? Here are a few methods:

The first point is to pay special attention to the maintenance of the cold storage insulation board to avoid the dent and corrosion of the storage board caused by sharp and hard objects colliding or scratching the insulation package, which will sometimes seriously affect the insulation performance of the cold storage.

The second point is to pay attention to the maintenance of the sealing parts of the cold storage;

The third point is that the combined cold storage is made up of multiple insulation boards, so there are certain gaps between the storage boards. These gaps are sealed with silica gel. In use, some parts of the sealing failure should be repaired with silica gel in time.

Fourth, pay attention to the maintenance of the floor of the cold storage; the floor of the cold storage is best covered with a thermal insulation layer to prevent the thermal expansion and contraction of the ground from squeezing the ground insulation board.

Extending the service life of cold storage can not only save costs and improve efficiency for enterprises, but also make full use of resources. Attention to buyers of cold storage equipment.