Heating and cooling system using swallet waste heat by industrial and mining enterprises

A technology for mine water inrush and industrial and mining enterprises, which is applied in the field of waste heat and waste heat resource utilization in coal systems, can solve the problems of high maintenance costs, complex system maintenance, and high operating costs for coal-fired boiler systems, and achieve sustainable development, system safety and reliability. Automation-intensive effects

Inactive Publication Date: 2012-05-23
SHANDONG TONGFANG ENERGY ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Coal enterprises are large energy consumers. Existing coal enterprises basically use coal-fired boiler systems to provide heat sources for mine heating, wellhead antifreeze, and employee bathing. The coal-fired boiler system has the following main problems: (1) High operating costs; ( 2) The environment is seriously polluted; (3) The annual maintenance cost of the coal-fired boiler system is very high, and the system maintenance is complicated
The refrigeration systems of office buildings and apartment buildings now adopt a single refrigeration air source heat pump system. Compared with the water source heat pump system, the air source heat pump system has low energy efficiency ratio, high operating cost and high maintenance cost.

Method used

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  • Heating and cooling system using swallet waste heat by industrial and mining enterprises
  • Heating and cooling system using swallet waste heat by industrial and mining enterprises

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: The three systems of wellhead antifreeze, employee bathing, factory building heating and cooling are independent, of which the wellhead antifreezing and employee bathing systems each have 50% unit spare capacity; the factory building heating and refrigeration systems have no spare units, but can be used The spare capacity of the wellhead antifreeze system and employee bathing system provides spare capacity for the heating and cooling system of the factory building. A set of water treatment and water replenishment system is selected to replenish water for the three systems respectively.

[0021] According to this idea, three SRSW-250-2 type water source heat pump units (standard working condition heating capacity is 947.5kW) are selected for the wellhead antifreeze system, dual-purpose and one standby; three SRSW-ZGW-100M-1 type ( Standard working condition heating capacity is 327.4kW) water source heat pump unit, dual-purpose and one standby; factory heating ...

Embodiment 2

[0023] Example 2: The wellhead antifreeze system and the employee bathing system are independent operating systems, but they share a backup water source heat pump unit, the reserve capacity of the employee bathing system is 100%, and the reserve capacity of the wellhead antifreeze system is 40%; the factory building heating and cooling systems It is an independent system without standby unit.

[0024] According to this idea, one SRSW-200-2 type water source heat pump unit (heating capacity of 769.5kW under standard working conditions) is configured for the employee bathing system; two SRSW-250-2 type (heating capacity of 947.5kW) water source heat pump unit; when the heat pump of the employee bathing system or the wellhead antifreeze system fails, the standby unit will supplement the heat source. This backup method is for emergency use; the heating and cooling system of the factory building uses two SRSW-ZGW-400M -4 type (standard working condition heating capacity is 1309.5kW...

Embodiment 3

[0026] Example 3: Two water source heat pump units are used for the wellhead antifreeze system, one water source heat pump unit for full heat recovery is used for the employee bathing system, and two large ones and one small three water source heat pump units are used for the heating and cooling system of the factory building. Among them, the small unit of the factory building heating and cooling system forms a one-way backup with the wellhead antifreeze system and the employee bathing system respectively. Wellhead antifreeze system or employee bathing system for heating. This backup mode is an emergency backup mode, and the original operation mode should be restored immediately after the fault is eliminated.

[0027] In summer, the employee bathing system not only provides employees with hot water for bathing, but also provides free cold sources for air conditioning in mine office buildings and apartment buildings. In this way, during the air conditioning and cooling of mine...

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Abstract

The invention discloses a heating and cooling system using swallet waste heat by industrial and mining enterprises, relating to the field of residual heat waste heat resource utilization. The heating and cooling system comprises a well-head freeze protection water source heat pump unit (5), a worker bath water source heat pump unit (6), an industrial heating and cooling water source heat pump unit (7), a mine water recycle pump (2), a primary water recycle pump (4), three secondary water recycle pumps, a bath water heating recycle pump (13), two plate-type heat exchangers and a sub-water catcher (17). In the invention, a water source heat pump technology is used and reclaimed water waste heat in a mine water treatment plant is comprehensively utilized for worker bath, industrial heating in winter, well-head freeze protection and cooling of office buildings and apartment blocks in summer; a coal-fired boiler system is thoroughly replaced; a water source heat pump system only extracts the heat of the reclaimed water of the treated mine water and domestic sewage, and additional water resources are not consumed; and the heating and cooling system has the advantages of remarkable energy saving effect, obvious economic benefit, outstanding environmental benefit and the like.

Description

technical field [0001] The invention relates to the field of utilization of waste heat and waste heat resources in coal systems, in particular to a heating and cooling system for industrial and mining enterprises using mine water gushing waste heat. Background technique [0002] In recent years, with the acceleration of industrialization and urbanization, the growth rate of my country's energy consumption has been significantly faster than the economic growth rate, and the contradiction of energy constraints facing economic development has become increasingly prominent. The per capita possession of major mineral resources is less than half of the world's average level. Only about 32%, more than 10 percentage points lower than the foreign advanced level. "The Outline of the Eleventh Five-Year Plan for National Economic and Social Development of the People's Republic of China" proposes that the energy consumption per unit of GDP at the end of the "Eleventh Five-Year Plan" will ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B29/00E21B36/00F24F5/00
CPCY02B30/52Y02B30/123Y02P80/10
Inventor 黄德洪姜官军高慎法曹磊马先勇刘波
Owner SHANDONG TONGFANG ENERGY ENG TECH
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