Method for designing energy-saving type circulating cooling water system

A technology of circulating cooling water and design method, applied in computing, special data processing applications, instruments, etc., can solve the problems of high energy consumption of circulating water system, save operating costs and energy costs, good computing science, high thermal efficiency. Effect

Active Publication Date: 2012-07-04
浙江科维节能技术股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art, seek to design and provide an energy-saving optimization technical method for the circulating water system that can reasonably solve the problem of high energy consumption o...

Method used

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  • Method for designing energy-saving type circulating cooling water system
  • Method for designing energy-saving type circulating cooling water system
  • Method for designing energy-saving type circulating cooling water system

Examples

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Embodiment 1

[0024] Example 1: Select a 300,000-ton synthetic ammonia plant circulating cooling water system for optimal design.

[0025] The engineering overview of the process circulation cooling water system in this embodiment is as follows: 7 cooling water pumps are equipped, 2 of which are equipped with a power of 2240kW, 1 with a power of 900kW, and 4 with a power of 1000kW, correspondingly equipped with 7 cooling towers. The operation mode is divided into two operation modes: general operation mode: 1 large (2240kW) cooling pump + 3 small (1000kW) cooling pumps + 7 cooling towers + cooling equipment (synthetic ammonia plant + power plant + soda ash plant); 9 Monthly (270 days*24 hours) operation; summer operation mode: 1 large (2240kW) cooling pump + 4 small (1000kW) cooling pumps + 7 cooling towers + cooling equipment (synthetic ammonia plant + power plant + soda ash plant); every year 7, 8, and 9 months (90 days * 24 hours) operation; first explore the production process and circu...

Embodiment 2

[0027] Example 2: Select a 1780 blast furnace blower turbine driving device circulating cooling water system in a steel plant.

[0028] The engineering overview of the circulating cooling water system in this embodiment is as follows: the cooling water system is mainly used for the cooling of the condensers and auxiliary machines of the three blower turbine driving devices of the 1780 blast furnace, and the condensers equipped with each blower turbine driving device are replaced. The thermal area is 1900m 2 , double-channel condensation; the pump station is equipped with 6 sets of 900kW cooling pumps (2 for use and 4 for standby); the operation mode before technical transformation: 2 sets (900kw) of cooling pumps + 2 sets of blower turbine driving devices; this embodiment involves 6 sets in total The water pump is equipped with an independent metering system, which can independently accumulate running time and power consumption. The operating mode is as follows:

[0029] Ope...

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Abstract

The invention belongs to the technical field of circulating cooling water energy saving, and more particularly relates to a method for designing an energy-saving type circulating cooling water system. The method comprises the following steps of: drawing a circulating cooling water system and heat exchange network flow chart, acquiring technical parameters and heat load values of each heat exchange equipment, determining operation working conditions and environmental parameters of collecting points, and carrying out collection; judging reasonability of the heat exchange equipment or a heat exchange network layout, and acquiring a minimal heat exchange amount through calculation; analyzing, judging and determining high energy consumption reasons simultaneously; through optimization as well as diagnosis and analysis of high energy consumption reasons, judging reasonability of a water distribution pipe network layout, and acquiring pipeline characteristics of each branched loop and partial resistance-abnormal nodes; and calculating and designing water pump impellers by adopting a three dimensional flow technology method. The method provided by the invention has the characteristics of reasonable route design, good computability and scientificity of design parameters, accurate data, high operation heat efficiency, high economical value, good social benefits and capability of saving expenses and energy cost.

Description

Technical field: [0001] The invention belongs to the technical field of energy saving of circulating cooling water, and relates to a technical scheme for realizing energy saving of a circulating cooling water system through optimized design, in particular to a design method of an energy-saving circulating cooling water system. Background technique: [0002] At present, circulating cooling water systems are widely used in industry and daily life. The energy consumption of these systems, especially the power consumption, is relatively large. The existing circulating cooling water systems use water as the medium and are mainly used for cooling or heating of the process. Exchange and transmission are indispensable basic links in the fields of iron and steel metallurgy, petroleum and petrochemicals, chemicals, biochemical pharmaceuticals, thermoelectricity, machinery, building materials, central heating, and central air conditioning. Circulating cooling water systems generally us...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 林永辉贾小平
Owner 浙江科维节能技术股份有限公司
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