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Summer and winter cold and hot water supply method for cultivation farm

A technology of hot water supply and supply method, which is applied in the direction of heat pumps, refrigerators, refrigeration components, etc., can solve the problems of resource waste, pollutants are easy to pollute the environment, etc., and achieve the effects of environmental protection, convenient operation and operation management, and simple system

Inactive Publication Date: 2012-06-20
TIANJIN UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition to the use of renewable energy, significant environmental benefits, and no pollution during operation, the seawater source heat pump also has the characteristics of high efficiency, energy saving, and low operating costs. However, this technology has not been applied in farms so far. The field uses traditional fuel boilers or electric power for cooling and hot water, and the pollutants discharged are easy to pollute the environment and cause waste of resources

Method used

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  • Summer and winter cold and hot water supply method for cultivation farm
  • Summer and winter cold and hot water supply method for cultivation farm

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Embodiment 1

[0016] (1) A high-temperature hot water well is set up in the breeding farm with a water output of 50m 3 / h, the water outlet temperature is about 70℃; there are 2 fresh water wells, and the water output of a single well is 60m 3 / h, the outlet water temperature is about 19℃; there is sufficient 28℃ seawater available in summer.

[0017] (2) According to the requirements of the breeding technology, it can be supplemented with 30℃ hot water about 150m per hour in winter 3 / h, where 19℃ fresh water 75m 3 / h, 75m of sea water at -5℃ 3 / h; In summer, it can add about 150m of 16℃ cold water every hour 3 / h, where 19℃ fresh water 75m 3 / h, 75m in sea water at 28℃ 3 / h.

[0018] According to the overall load requirements of the project, two fully enclosed twin-screw water source heat pump units are selected, and the two units are set in parallel, which can be steplessly adjusted according to load changes. In order to ensure the amount of hot water source required by the host and reduce the...

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Abstract

The invention discloses a summer and winter cold and hot water supply method for a cultivation farm. In winter, firstly, acquired seawater and fresh water pumped from a fresh water well are mixed into mixed water; and secondly, after heat exchange, mixed water flows into condensers of two single-screw water source heat pump units in parallel and is turned into cultivation hot water after absorbing heat, after waste water formed by high-temperature water after heat exchange is mixed with fresh water pumped from the fresh water well, mixture of the waste water and the fresh water flows into a heat exchanger to indirectly exchange heat with water on evaporator sides of the two heat pump units, and circulating water in independent water systems of the evaporator sides flows into evaporators of the heat pump units in parallel after heat exchange to discharge heat. In summer, acquired seawater is mixed with fresh water pumped from the fresh water well, and then flows into the evaporators of the two heat pump units in parallel, and required cultivation cold water can be obtained after mixture of the seawater and the fresh water realizes heat discharge and is cooled; and a second channel of seawater directly flows into the condensers of the two heat pump units in parallel after being pressurized by a cooling water circulating water pump, and is drained after heat is absorbed. The method is efficient and energy-saving and is low in running expense.

Description

Technical field [0001] The invention relates to the technical field of cold and hot water supply in the breeding industry, in particular to the field of geothermal energy exploitation and utilization. Background technique [0002] In recent years, large-scale farms have developed rapidly. However, with the increasingly serious energy crisis and environmental pollution, the traditional cold and hot water supply methods of breeding farms have become increasingly unsuitable for modern large-scale breeding farms, and the development of new energy-saving and environmentally friendly cold and hot water supply methods has become more and more important. important. Geothermal resources are a kind of clean and renewable energy. Because of its advantages of easy development, low cost, cleanliness, and constant temperature, it has been widely used in residential heating, bathing industry, hotel catering and tourism service industries. Seawater source heat pump technology is a low-temperat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B30/06
Inventor 马洪亭王明辉王芳超杨国利郝夙枫梁普宋肖的
Owner TIANJIN UNIV
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