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Novel inclined shaft energy-saving freezer

A technology for freezers and inclined shafts, which is applied in the direction of sinking shafts, shaft equipment, mining equipment, etc., can solve the problems of wasting refrigeration energy and loss of cooling capacity of freezers, and achieve the goals of slowing down heat exchange, ensuring stability, and saving refrigeration energy Effect

Pending Publication Date: 2018-08-03
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the technical problems of cooling capacity loss and waste of refrigeration energy in the freezer during the freezing construction process of the inclined shaft, the invention uses thermal insulation materials with small thermal conductivity to fill the liquid inlet pipe and the freezing pipe in the non-freezing area to form a new type Inclined shaft energy-saving freezer

Method used

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  • Novel inclined shaft energy-saving freezer
  • Novel inclined shaft energy-saving freezer
  • Novel inclined shaft energy-saving freezer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] 1. Drill vertical holes on the ground above the inclined shaft to form frozen holes and lower them image 3 For the shown freezing pipe (1), the freezing area of ​​the inclined well shaft in the range of the solid pipe wall of the freezing pipe (1) is overlapped, and the insulating material is filled in the hollow pipe wall of the freezing pipe (1), and then in the freezing pipe (1) top mount Figure 5 Cover plate (3) shown. will be like Figure 4 The shown liquid inlet pipe (2) is lowered into the freezing pipe (1) from the round hole in the middle of the cover plate (3), and the hollow pipe wall of the liquid inlet pipe (2) is filled with thermal insulation material, thus forming a new type of inclined well Energy-saving freezer, the overall effect and assembly as Figure 1~2 shown. The working diagram of the freezer is shown in Image 6 shown.

[0013] 2. Inject frozen brine into the liquid inlet pipe (2) on the ground surface, and the heat exchange is slowed d...

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Abstract

The invention discloses a novel inclined shaft energy-saving freezer. A hollow area of each of the pipe walls of a freezing pipe and a liquid inlet pipe is filled with a filling heat insulation material, to slow down the heat exchange between a non-frozen area and a stratum and the heat exchange between inlet liquid on the upper portion of the liquid inlet pipe and return liquid, so that the goalof saving refrigeration energy is achieved. The novel inclined shaft energy-saving freezer is mainly applied to the field of freezing construction during the inclined shaft freezing method shaft digging construction.

Description

Technical field: [0001] The invention is a novel energy-saving freezer for inclined shafts, which is suitable for the freezing construction field in the drilling construction process of inclined shaft freezing method. Background technique: [0002] Freezing method drilling construction is to use artificial freezing technology to freeze the water-bearing soil around the wellbore to form a frozen wall to resist the water and soil pressure of the formation and ensure the safe construction of the wellbore. During the drilling construction process of the inclined shaft freezing method, a certain length of freezer is lowered near the shaft of the inclined shaft, and the bottom of the freezer will be about 5m deeper than the bottom of the shaft of the inclined shaft. The water-bearing soil conducts heat exchange, and then forms a closed freezing curtain, that is, the freezing wall, within a range of about 5m around the wellbore. Different from shaft freezing method for drilling we...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D1/14
CPCE21D1/14
Inventor 赵健张泽沛
Owner CHINA UNIV OF MINING & TECH (BEIJING)