Device for the cold accumulation
(57) Abstract:The invention relates to the construction, namely, ground freezing is used to create Leopardi fencing. Device for the cold accumulation contains partially submerged in the ground well casing filled with refrigerant, supplied by shell mounted around the casing with a clearance. The gap between the casing pipe and the shell is filled with coolant. The new device is that the gap between the casing pipe and shell are the injection and discharge lines, which are connected with the evaporator of the refrigeration machine. Technical result provided by the invention is to reduce the time of freezing of the soil and extend the functionality of the device. 2 C.p. f-crystals, 2 Il. The invention relates to the field of construction and relates to the freezing of the soil used to create Leopardi fencing.A device for the cold accumulation, containing partially submerged in the ground well casing filled with a coolant . A disadvantage of this device is that in the summer at positive temperatures, the device does not work in achiev">The closest technical solution is a device for the cold accumulation , equipped with a shell mounted around the casing with a gap, and the space between the casing pipe and the casing filled with liquid, the freezing temperature below the phase transition of ice - water.A disadvantage of this device is a long process of freezing of the soil and the inability to use the device in areas with relatively warm and long summer period.The objective of the invention is to reduce the time of freezing of the soil and expanding the functionality of the device.The problem is solved due to the fact that the device for the cold accumulation contains partially submerged in the ground well casing filled with refrigerant and provided with a shell mounted around the casing with a gap, and the gap between the casing pipe and the shell is filled with coolant, and in the gap between the casing pipe and shell are the injection and discharge lines, which are connected with the evaporator of the refrigeration machine.The invention is illustrated in the drawing, where Fig. 1 shows the claimed device (raela 1, submerged in the ground, and the capacitor 2, which is located above the ground surface. Around the evaporator and part of the capacitor mounted on the casing 3 with a gap 4, which is filled with coolant. Shell mounted around the condenser, equipped with thermal protection 5. Shell announced the discharge 6 and outlet 7 piping and the discharge piping is located inside the shell and connected to the reservoir 8.The device operates as follows.With the onset of winter, when the outside temperature becomes lower than the temperature of the cooled soil is cooling and freezing of the soil and the freezing of the coolant in the gap 4, due to the circulation of the refrigerant in the casing pipe.With the onset of summer, when the outdoor temperature becomes higher than the temperature of frozen soil in the shell 3 through the supply pipe 6 is served cooled in the evaporator of the refrigeration machine coolant located in the gap 4, taleesa pairs of refrigerant and discharged through the discharge pipe 7, which provides a specified temperature. In the first case, this is achieved by transferring hellsbane described device allows to reduce time of freezing of the soil and increase the reliability of the device.Sources of information
1. Auth. St. N 495412, M. class. E 02 D 3/12, 09.10.72.2. Auth. St. N 553328. M CL E 02 D 3/12, 05.04.77. 1. Device for the cold accumulation, containing partially submerged in the ground well casing filled with refrigerant, supplied by shell mounted around the casing with a gap, and the gap between the casing pipe and the shell is filled with coolant, characterized in that the gap between the casing pipe and shell are the injection and discharge lines, which are connected with the evaporator of the refrigeration machine.2. Device for the cold accumulation under item 1, characterized in that the discharge line is equipped with a manifold located at the bottom of the shell.3. Device for the cold accumulation under item 1 or 2, characterized in that the collector has the shape of a torus sleeve surface in the upper part of which there are holes.
FIELD: heat engineering constructions.
SUBSTANCE: invention can be used as supports of different construction on permafrost. Proposed heated pile has reinforced concrete or metal shaft with inner or outer heated pipe in form of ribbed evaporator and condensers provided with metal strip ribbing arranged over ground surface with inclination to vertical part of shaft. Novelty is that heated pile is made T-shaped, and heated pipe in form of ribbed evaporator is made symmetrically double relative to axis of shaft with connection of some ends or its evaporators, other ends being connected with condensers. Evaporator ribbing is made in form of upward convex ring surfaces with central passes secured on inner surfaces of walls of heated pipe evaporators and uniformly distributed in height, and metal strip ribbing of condensers is element of horizontal part of T-shaped heated pile.
EFFECT: improved efficiency of heated pile, facilitated replacement of pile in case of failure.
2 cl, 4 dwg
FIELD: building heat-engineering structures, particularly for forming supports of different structures in permafrost areas.
SUBSTANCE: method involves condensing gaseous working agent in condensing chamber by cooling thereof with ambient air over ground surface; moving condensed liquid under gravity through transporting channel to evaporating chamber; evaporating thereof inside evaporating chamber and returning gaseous working agent into condensing chamber. Gaseous working agent is condensed in space having volume exceeding volume of space for working liquid evaporation. T-shaped pile for ground cooling comprises vertical reinforced concrete body with horizontal support located above ground surface, condenser part of heat pipe made of tubes and having transporting channel located inside pile body and connected to finned evaporator part along heat pipe axis. The heat pipe is also located above ground surface. Condenser part is formed of symmetrically bended tube with parts inclined towards center thereof. Condenser tube diameter exceeds that of transporting channel communicating with central area of condenser part. Transporting channel part connected with evaporator part is made as inner wall thereof and forms annular cavity defined by transporting channel and outer wall of evaporator part in cross-sectional plane thereof. Volume of the transporting channel is less than condenser part volume. Transporting channel is closed with end cap located behind the cavity and has side orifices to communicate the cavity with evaporator part. The side orifices are formed in front of the end cap.
EFFECT: increased efficiency of ground cooling around the pile.
4 cl, 1 dwg
FIELD: hydraulic building, particularly to create water-tight frozen shields having height up to 100 m or more.
SUBSTANCE: device comprises freezing column arranged in borehole, outer heat exchanger which transfers heat from liquid coolant to source of cold and pump to provide coolant circulation. Freezing column is made as two coaxial tubes, namely outer, freezing, and inner, supplying, ones. Freezing tube is formed of metal. At least part of supplying tube adjoining borehole head is formed of material with low heat conductivity or supplying tube comprises material with low heat conductivity in cross-section thereof. Outer and inner tubes define annular channel for liquid coolant circulation. Upper part of borehole and part of outer tube adjoining borehole head have the greatest diameters. Gap is created between outer tube wall and borehole wall. The gap is filled with filling material taken in the form of particles having high heat conductivity in amount corresponding to predetermined particle concentration along channel length. Particle concentration in upper part adjoining borehole head is maximal.
EFFECT: increased operational efficiency due to increased capacity of liquid coolant unit to carry away heat from ground related to tall freezing column as a whole and to separate parts thereof along with uniform distribution of heat removed from freezing column parts.
8 cl, 1 tbl, 5 dwg
FIELD: refrigeration engineering, particularly to freeze ground used for ice-ground barrier creation.
SUBSTANCE: cold accumulation device comprises casing pipe filled with coolant and including ground-submersed evaporator and condenser. Device also has condensing unit arranged over condenser and connected with line by pressure and discharge pipelines. The line is located in space defined between evaporator and shell and formed as pipe having elliptical cross-section densely wound on condenser. The space between the line and the shell is filled with heat insulation means. Cold accumulation device additionally has inlet pipeline with pressure compressor inlet and outlet pipeline. Inlet pipeline extends for the full length of casing pipe from the pressure inlet to evaporator through condensation zone. Outlet pipeline passes from pressure pipeline to casing pipe condenser.
EFFECT: increased economical efficiency, reduced casing pipe defrosting time and extended operational capabilities.
FIELD: improving or preserving soil or rock by thermal, electrical or electro-chemical means, particularly by freezing.
SUBSTANCE: cold accumulation device comprises casing pipe filled with coolant. The casing pipe includes evaporator submersed in ground and condenser comprising condensing zones A and B. Compression-and-condensing unit is arranged over condenser and connected with pipeline through pressure and discharge lines. The pipeline is made as tube of elliptic cross-section wound on tube having D1 diameter. Casing pipe has variable cross-section so that lower evaporator part L having diameter D is located in down casing pipe part and is brought in direct contact with ground. Remainder evaporator part L1 has diameter D1, wherein D>D1. Space defined by D-D1 difference is filled with air.
EFFECT: improved economical efficiency and performance, increased manufacturability and extended functional capabilities.
FIELD: heating systems.
SUBSTANCE: invention is intended for cooling of ground and can be used in construction industry. Heat pipe includes tubular housing, condenser of which is located above the ground surface, and evaporator - in cooled ground, which are provided with external finnings, filler pipe for vacuum treatment and filling of heat pipe with heat carrier with its further sealing. Heat pipe is provided with removable refill capacity tightly installed on the end of heat pipe condenser by means of coupling nut and by using annular seal. Filler pipe is connected to cavity of the above capacity, through end wall of which in direction of longitudinal axis of heat pipe there tightly installed is female wrench for the sealing screw installed in the edge of condenser along longitudinal line of heat pipe. From lower edge of sealing screw there made is central channel with side outlet for passage of heat carrier from cavity of removable refill capacity to cavity of heat pipe. Side outlet is located above annular seal of sealing screw when it is not completely screwed and below the above annular seal when the screw is completely tightened. Heat pipe is provided with sealing element in the form of a plug for installation instead of removable refill capacity after filling is completed.
EFFECT: increasing heat pipe efficiency.
2 cl, 3 dwg
SUBSTANCE: pile support intended for use in erection of structures erected in regions with permanently frozen soil comprises metal or reinforced concrete tubular shaft 1 with closed ends, which is partially deepened into soil 2. Upper end 3 is a supporting platform. Support also comprises cooling device of seasonal effect. In deepened part of shaft 1 there is a reservoir 5 arranged with substance 7 that accumulates cold. Support feature is in making reservoir 5 from elastic material and its placement with adjacency to internal surface of shaft 1 wall, and also use of water as substance that accumulates cold. Cooling device is arranged in the form of one or several vertically oriented gravitational heat pipes 4 arranged outside tubular shaft 1 with zones of evaporation 11 and condensation 9, and transport zone 10 arranged in between. Besides evaporation zone 11 in each thermal pipe is located below, and zone of condensation is arranged higher than soil surface.
EFFECT: invention provides for improved reliability of structures, using cooled pile supports, in combination with improved efficiency of cooling and freezing.
3 cl, 1 dwg
SUBSTANCE: pile support intended for use in construction of structures erected in regions with permanently frozen soil comprises metal or reinforced concrete shaft 1 partially deepened into soil 2 and equipped with supporting platform 3 on the side of upper end. Support also comprises cooling device of seasonal action and reservoir 5 with substance 7 that accumulates cold. Support feature is in making reservoir from elastic material and placement of it outside shaft 1 in vertical well 13 closed with cover 14 with its adjacency to its walls, and also use of water as cold-accumulating substance. Cooling device is arranged in the form of one or several vertically oriented gravitational heat pipes 4 arranged outside tubular shaft 1 with zones of evaporation 11 and condensation 9, and transport zone 10 arranged in between. Besides evaporation zone 11 in each thermal pipe is located below, and zone of condensation is arranged higher than soil surface.
EFFECT: invention provides for improved reliability of structures, using supports of abovementioned design, in combination with improved efficiency of cooling and freezing, and also possibility to use supports with monolithic shaft.
5 cl, 1 dwg
SUBSTANCE: device for stabilisation of plastic-frozen soils with year-round mode of operation for accumulation of cold in base of structures includes underground and aboveground parts of tubular tight vessel filled with refrigerating fluid, underground part of which is evaporator, and aboveground one is condenser equipped with shelf, having thermoelectric modules in the form of Peltier elements battery arranged on its surface. Device is equipped with thermal pipe, one end of which has shelf joined to hot surface of thermoelectric modules. The other end, being zone of condensation, has ribbed surface, besides axis of condensation zone has the angle φ of inclination to horizon.
EFFECT: improved efficiency of device operation and expansion of area of application.
3 cl, 3 dwg
SUBSTANCE: system for temperature stabilisation of structures foundation on permafrost soils equipped with hydraulic lock, levelling vessel, serially connected to condenser and evaporator arranged in foundation soil fill, joined to pipelines that supply and drain heat medium. It additionally comprises vertical heat-exchangers-evaporators arranged along depth of foundation soil fill, which are made as tube in tube, and their lower ends are plugged, and upper ends are connected directly to evaporator, which is arranged in the form of system of pipes laid in horizontal plane evenly along whole area of foundation soil fill, equipped with a layer of heat insulation joined by means of pipelines by its supply end to condenser and by its drain end - by means of pipelines with a levelling vessel. Height of above mentioned vertical heat-exchangers-evaporators is equal to at least distance "b" between border of depth of "X-X" evaporator arranged in the form of piping system laid in horizontal plane evenly along whole area of foundation soil fill, and upper border of "Z-Z" permafrost soils depth. Lower part of inner pipes of specified heat-exchangers-evaporators arranged concentrically to outer pipes is arranged with perforation, and upper part is arranged as funnel-shaped.
EFFECT: improved reliability, efficiency, operational and technical properties of systems for temperature stabilisation, reduced material intensity.
6 cl, 5 dwg