RU218787U1 - REFRIGERATOR UNIT TO ENSURE THE OPERATION OF SOIL THERMOSTABILIZERS IN THE PASSIVE PERIOD - Google Patents

Abstract

The utility model relates to the field of construction, namely to devices for cooling and freezing soil used in the construction of structures erected in permafrost areas. It is used for forced cooling of the soil thermal stabilizer at high air temperatures, when the thermal stabilizer is in a passive state and does not cool the soil.

The technical result, to which the claimed solution is directed, is to provide the calculated temperature difference between the condenser and evaporator parts necessary for the natural operation of soil thermal stabilizers during the passive period of operation, the possibility of a faster "start" of thermal stabilizers.

The technical result is achieved by the fact that a quick-detachable refrigeration device for ensuring the operation of soil thermal stabilizers in the passive period, containing a metal case, made with the possibility of fixing to the earth's surface by means of anchors, covered on the outside with a reflective, anti-corrosion paint and varnish coating and divided by a partition into two compartments, in the upper compartment of the case , the compressor is installed, fixed on the supporting structure, also in the upper part of the compartment there is a power cable with the possibility of connecting to the compressor, for connecting to a power source, there are also holes in the upper compartment, and a condenser circuit of the cooling system with the possibility of connecting to the compressor, in the lower compartment housing, the evaporator circuit of the cooling system and the fan system are installed, the condenser part of the soil thermal stabilizer is blown by means of the fan system, the fan system is fixed on the wall of the lower compartment, a technological hole is also made in the lower compartment of the housing, the lower compartment of the housing is made of a heat-insulating coating, in the transition area condenser circuit, a filter-drier and a throttle device are located in the evaporator circuit.

Description

The utility model relates to the field of construction, namely to devices for cooling and freezing soils used in the construction of buildings and structures on permafrost soils. It is used to ensure the operation of the soil thermal stabilizer during the passive period of operation (the period when the ambient air temperature is higher than the soil temperature).

The soil thermal stabilizer is a device consisting of a sealed metal tube filled with refrigerant, installed in the ground and having an above-ground tubular part with fins to increase the area of contact with air. The thermal stabilizer is designed to transfer the cold of the ambient air to the ground and works only in winter, when the air temperature is lower than the ground temperature.

A device is known to be a soil thermal stabilizer of year-round action for cold accumulation (Patent RU 150973 U1, IPC E02D 3/115, publ. 10.03.2015). The device consists of a condenser and an evaporator of a tubular sealed body of a heat pipe (vapor-liquid heat stabilizer) filled with a refrigerant, a forced-action cooling system, a split heat exchanger - conductor, consisting of two halves. The circulation of the coolant through the pipes of the horizontal cooling system in the form of a flat coil, located at the base of engineering structures, is carried out due to the operation of the pump of the liquid cooling unit based on the vapor-compression refrigeration machine.

The disadvantage of this device is the need for constant use of volatile equipment to ensure its operation during the entire period of its operation, as well as the possibility of damage to the device due to its large size in plan.

The proposed model makes it possible to provide a year-round operation of the thermal stabilizer and is installed for a limited period of time until the required soil temperature is provided.

The technical result, to which the claimed solution is directed, is to provide the calculated temperature difference between the condenser and evaporator parts necessary for the natural operation of soil thermal stabilizers during the passive period of operation, the possibility of a faster "start" of thermal stabilizers.

The technical result is achieved by the fact that a quick-detachable refrigeration device for ensuring the operation of soil thermal stabilizers in the passive period, containing a metal case, made with the possibility of fixing to the earth's surface by means of anchors, covered on the outside with a reflective, anti-corrosion paint and varnish coating and divided by a partition into two compartments, in the upper compartment of the case , the compressor is installed, fixed on the support structure, also in the upper part of the compartment there is a power cable with the possibility of connecting to the compressor, for connecting to a power source, there are also holes in the upper compartment, and a condenser circuit of the cooling system with the possibility of connecting to the compressor, in the lower compartment housing, the circuit of the evaporator of the cooling system and the fan system are installed, with the help of the fan system, the condenser part of the soil thermal stabilizer is blown, the fan system is fixed on the wall of the lower compartment, a technological hole is also made in the lower compartment of the housing, the lower compartment of the housing is made of a heat-insulating coating, in the area at the transition of the condenser circuit to the evaporator circuit there is a filter-drier and a throttle device.

The refrigeration device is a metal case equipped with a cooling and ventilation system for internal air and covered on the outside with a reflective, anti-corrosion paint and varnish coating.

The design of the refrigeration device is shown in figure 1: the refrigeration device is a metal case coated on the outside with a reflective, anti-corrosion paint coating (1). The body is divided by a partition into two compartments. In the upper compartment of the housing (2) there is a compressor (3) resting on a support structure (4) and a condenser circuit (5) of the cooling system. The upper compartment of the housing has openings (6) that allow outside air to carry out the process of removing heat from the surface of the condenser. In the lower compartment of the housing (7) there is an evaporator circuit (8) of the cooling system and a fan system (9) that blows the condenser part of the soil thermal stabilizer. The bottom compartment of the housing has a special technological hole (10) that allows mounting/dismounting the metal housing without damaging the above-ground part of the soil thermal stabilizer. The metal case is installed on the earth's surface and fixed with special anchors (11) immersed in the ground. In order to increase the efficiency of the soil thermal stabilizer by reducing heat loss to the environment, the inner part of the lower compartment of the body is made in a heat-insulating coating (12). The upper circuit contains a power cable (13) with which the refrigeration unit can be connected to an external power source for the operation of the cooling and ventilation system. The device is equipped with a thermometer (14) showing the air temperature inside the device during operation. The transition section between the condenser circuit and the evaporator circuit is equipped with a filter-drier (15) and a throttle device (16).

The principle of operation is as follows: during the period when the ambient temperature rises above the ground temperature, the condenser part of the soil thermal stabilizer is covered with a metal case (1), put on through a special technological hole (10) and fastened to the ground using special anchors (11), immersed in the ground . The lower contour (7) is made in a heat-insulating coating (12) from the inside, which makes it possible to significantly reduce heat losses with the environment. The power supply to the cooling and ventilation systems is carried out from an external power source connected to the unit through a power cable (13) located in the upper compartment of the housing (2). The removal of heat from the air in the lower compartment of the housing (7) is carried out due to the boiling of the refrigerant inside the evaporator circuit (8) and the release of energy to the environment through the condenser circuit (5) located in the upper compartment of the housing (2). Heat is removed by means of outside air entering the upper compartment of the housing (2) through special openings (6). The system has a compressor (3) located on the support structure (4), which performs forced circulation of the refrigerant. An increase in the efficiency of the soil thermal stabilizer is achieved by blowing the condenser part of the soil thermal stabilizer with a fan system (9). In order to determine the operability of the refrigeration device, it can be equipped with a thermometer (14), showing the air temperature of the lower compartment of the housing during operation. At the transition section of the condenser circuit (5) to the evaporator circuit (8), there is a filter-drier (15) that serves to remove moisture from the refrigerant and a throttle device (16) that regulates the refrigerant pressure between the evaporator circuit (8) and condenser (5) . During the period of active operation of the soil thermal stabilizer, the metal case (1) is dismantled.

Claims (1)

A quick-detachable refrigeration device for ensuring the operation of soil thermal stabilizers in the passive period, containing a metal case, made with the possibility of fixing to the earth's surface by means of anchors, covered on the outside with a reflective, anti-corrosion paint and varnish coating and divided by a partition into two compartments, a compressor mounted on a support is installed in the upper compartment of the housing design, also in the upper part of the compartment there is a power cable with the possibility of connecting to a compressor, for connecting to a source of electricity, there are also holes in the upper compartment, and a condenser circuit of the cooling system with the possibility of connecting to a compressor, in the lower compartment of the housing there is an evaporator circuit of the cooling system and fan system, with the help of a fan system, the condenser part of the soil thermal stabilizer is blown, the fan system is fixed on the wall of the lower compartment, a technological hole is also made in the lower compartment of the housing, the lower compartment of the housing is made of a heat-insulating coating, a filter is located at the transition section of the condenser circuit to the evaporator circuit dryer and throttle device.

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