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Inclined shaft freezing and cooling capacity recovery device capable of improving safe operation of ammonia system without shutdown

A technology of cold energy recovery and system safety, which is applied in shaft equipment, well sinking, mining equipment, etc., can solve the problems of water resource waste and cost increase, and achieve the effect of avoiding waste, reducing operating costs, and improving utilization efficiency.

Pending Publication Date: 2021-07-13
TIANDI SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] For this reason, the technical problem to be solved by the present invention is to provide an inclined shaft freezing and cooling capacity recovery device that can improve the safe operation of the ammonia system without stopping the machine, so as to solve the problems caused by reducing the load of equipment, increasing equipment or reducing cooling water in the prior art. Increased costs, waste of water resources, and safety issues caused by measures such as water temperature

Method used

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  • Inclined shaft freezing and cooling capacity recovery device capable of improving safe operation of ammonia system without shutdown
  • Inclined shaft freezing and cooling capacity recovery device capable of improving safe operation of ammonia system without shutdown
  • Inclined shaft freezing and cooling capacity recovery device capable of improving safe operation of ammonia system without shutdown

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Embodiment 1

[0037] An inclined shaft freezing and cooling capacity recovery device that improves the safe operation of the ammonia system without shutting down, including a brine system, an ammonia system, a clean water system, and a cooling capacity extraction system for the frozen wall in the completed stage. The brine system provides cooling capacity for the frozen wall in the unfinished stage , The ammonia system provides cooling capacity to the low-temperature brine in the brine system, the clean water system provides cooling capacity to the high-temperature and high-pressure ammonia gas in the ammonia system, and the frozen wall cooling extraction system in the completed stage provides cooling capacity to the clean water system. The device lowers the temperature of the clean water cooling water in the clean water system by extracting the cooling capacity of the frozen wall in the completed stage, which can effectively improve the utilization efficiency of the stored cold capacity in t...

Embodiment 2

[0046] An inclined shaft freezing and cooling capacity recovery device that improves the safe operation of the ammonia system without shutting down, including a brine system, an ammonia system, a clean water system, and a cooling capacity extraction system for the frozen wall in the completed stage. The brine system provides cooling capacity for the frozen wall in the unfinished stage , The ammonia system provides cooling capacity to the low-temperature brine in the brine system, the clean water system provides cooling capacity to the high-temperature and high-pressure ammonia gas in the ammonia system, and the frozen wall cooling extraction system in the completed stage provides cooling capacity to the clean water system.

[0047] The structures of the brine system and the ammonia system of this embodiment are the same as those of Embodiment 1, see for details figure 1 and figure 2 . Such as Figure 4 As shown, the cooling capacity extraction system of the frozen wall in t...

Embodiment 3

[0052] In this embodiment, in the inclined shaft freezing and cooling capacity recovery device for improving the safe operation of the ammonia system without stopping the machine, the structures of the brine system, the ammonia system and the frozen wall cooling capacity extraction system in the completed stage are the same as those in Example 2, and the clear water The difference between the system and Example 2 is that the way the clean water system provides cooling capacity to the high-temperature and high-pressure ammonia gas of the ammonia system is a closed type. The working principle of the closed water purification system is as follows: Figure 7 Shown, its specific structure see Figure 5 .

[0053] Such as Figure 5 As shown, the cooling capacity extraction system of the frozen wall in the completed stage includes the frozen wall 1-11 in the completed stage and the frozen pipe 1-10 in the completed stage; the clean water system includes a first clean water pump 9, ...

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Abstract

The invention discloses an inclined shaft freezing and cooling capacity recovery device capable of improving safe operation of an ammonia system without shutdown, which comprises a saline water system, an ammonia system, a clear water system and a completed stage frozen wall cooling capacity extraction system, the saline water system provides cooling capacity for an uncompleted stage frozen wall, the ammonia system provides cooling capacity for low-temperature saline water of the saline water system, and the clear water system provides cooling capacity for low-temperature saline water of the clear water system. The clear water system provides cold energy for high-temperature and high-pressure ammonia gas of the ammonia system, and the completed stage frozen wall cold energy extraction system provides cold energy for the clear water system. The refrigeration capacity accumulated in the freezing wall at the completed stage is extracted by additionally arranging the refrigeration capacity extraction system for the freezing wall at the completed stage, so that the inclined shaft freezing system can continuously run without shutdown, the running cost is reduced, the waste of water resources and energy is effectively avoided, and the safety of the shaft freezing system is greatly improved.

Description

technical field [0001] The invention relates to the technical field of cold energy recovery, in particular to an inclined well freezing and cold energy recovery device for improving the safe operation of the ammonia system without stopping the machine. Background technique [0002] Sinking by freezing is a construction method that uses artificial refrigeration technology to temporarily reinforce unstable formations and isolate groundwater. The freezing method is suitable for loose and unstable alluvium, fractured water-bearing rock formations, soft mudstone, and rock formations with particularly large water content and water pressure. Freezing method sinking can be used not only as a conventional construction method for mine engineering with complex geological conditions, but also as a means of emergency rescue and accident handling. It is also used in the construction of subways, bridges and culverts, large-volume underground chambers and deep foundation pits. In addition...

Claims

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Application Information

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IPC IPC(8): E21D1/12E21D1/14
CPCE21D1/12E21D1/14
Inventor 王恒王春光李建志汪宗文蔡光辉赵玉明张成涛徐兴保郭垒彭剑平王婧娟张博超杨明红苑正涛郭京林杨俊阳王玉群王鑫
Owner TIANDI SCI & TECH CO LTD
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