GB/T 3839-1983
Active
T/AHEMA 21-2022
Active
Group standards
T/AHEMA 21-2022 Technical specifications for utilizing the waste heat of coal mine water and bath wastewater in coal mining enterprises
T/AHEMA 21-2022 Technical specifications for utilizing the waste heat of coal mine water and bath wastewater in coal mining enterprises
Price:
$ 20.00
Basic Information
Standard Code:
T/AHEMA 21-2022
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
\nPollutant emission standards
ICS Name:
\nWastewater
Publish Date:
2022-06-01
Implement Date:
2022-06-01
Pages:
21 pages
Scope
Scope: This document applies to the design, construction, and acceptance of systems engineering projects using primary wastewater such as mine water and bath wastewater as low-temperature heat sources, and water or water solutions with antifreeze additives as heat transfer media, employing steam compression heat pump technology for cooling, heating, and generating domestic hot water during the new construction, expansion, and renovation of coal mining enterprises. Planning and design of waste heat utilization systems require comprehensive consideration of current technical and economic conditions, building energy consumption characteristics, heat usage nature, and water quality, with rational design and standardized construction aimed at ensuring system economic efficiency. To ensure advanced technology, economic feasibility, and safe reliability in engineering design, construction, and acceptance of mine-area waste heat utilization projects, this document is formulated. The planning, design, construction, and acceptance of waste heat utilization systems shall comply with this document, as well as applicable national laws, standards, and regulations. This document does not apply to the design of waste heat recovery systems for urban heating purposes. Main technical content: 5. Waste heat utilization system design parameters 5.1.1 Before designing the waste heat utilization system, field surveys should be conducted on the maximum and minimum annual (daily) flow rates, flow velocities, daily drainage periods, and annual maximum and minimum water temperatures of the wastewater, while recording the seasonal variations and hourly data of typical days. 5.1.2 The available temperature drop (rise) of the wastewater source under design conditions should not be less than 3℃. 5.1.3 When the wastewater source is mine water, the wastewater temperature should be around 25℃. 5.1.4 When the wastewater source is bath wastewater, the wastewater temperature should be around 35℃. 5
Development Information
Related Standards
GB 4284-1984
Replaced
GB 4284-1984 Control standards for pollutants in sludges from agricultural use
GB 4914-1985
Replaced
GB 4914-1985 Effluent standards for oil-bearing waste water from offshore petroleum development industry
GB/T 4918-1985
Abolished
GB/T 4918-1985 Waste water from manufacturing process—Determination of total nitro compounds—Spectrophotometric method
GB/T 4919-1985
Abolished
GB/T 4919-1985 Waste water from manufacturing process—Determination of total nitro compounds—Gas chromatographic method
GB 9135-1988
Abolished