Assembly type freezer

Abstract

The invention discloses an assembly type freezer. The assembly type freezer comprises two parallel guide rails vertically inserted in soft soil, freezing holes used for containing freezing pipes are formed in the soft soil, and an upper section, a middle section and a lower section of the freezing pipe A, the freezing pipe B and the freezing pipe C are arranged on the guide rails. The upper freezing pipe, the middle freezing pipe and the lower freezing pipe are clamped to the outer walls of the guide rails at the corresponding positions through clamping grooves, each freezing pipe can independently perform refrigerant circulation, freezing in the segmented range is achieved, for example, low-temperature refrigerants are injected from a first feeding pipe, a second feeding pipe and a third feeding pipe, heat exchange is carried out between the refrigerants and the soft soil stratum, and heat in the soft soil passes through corresponding spiral pipes and then flows back to a ground system from a first air outlet pipe, a second air outlet pipe and a third air outlet pipe, so that freezing of the soft soil is completed.

Description

technical field [0001] The invention relates to the technical field of artificial freezing construction, more specifically, it relates to an assembled freezer. Background technique [0002] In underground engineering construction, when encountering complex geological conditions such as water-rich soft soil strata, artificial freezing technology is often used to reinforce the soil layer to improve the performance of the stratum, so as to complete excavation and structure construction in the water-rich stratum. For the current construction process, generally, according to the engineering requirements, the pre-processed freezer is arranged in the freezing hole, and the freezing curtain is formed in the length direction of the freezing pipe through the freezing effect to withstand the earth pressure and block the groundwater, creating a good environment. construction environment. Therefore, the traditional freezers used in construction are pre-processed before construction. Whe...

AI Technical Summary

Problems solved by technology

Therefore, the traditional freezers used in construction are pre-processed before construction. When the length of the freezing pipe is large, large lifting equipment is required to complete the installation of the freezing pipe, and the length of the freezing pipe cannot be adjusted during construction. The processed freezing tube can only adapt to a single freezing depth, and the reusability is not good

Since the low-temperature refrigerant circulates throughout the entire length of the freezing pipe, the freezing time at different freezing depths is the same during the construction process, and segmental freezing cannot be realized. When the upper structure does not need to be frozen after construction, it cannot be frozen at any time. stop freezing

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