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Municipal drainage main canal air source heat pump system and circulation method

An air source heat pump and municipal drainage technology, which is applied in the operation mode of the machine, the combination of heating and cooling, lighting and heating equipment, etc., can solve the problems of shutdown and drop of the heat pump unit, achieve low operating costs, large temperature difference, and avoid one-time The effect of sexual consumption

Inactive Publication Date: 2016-03-30
HARBIN UNIV OF COMMERCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the application range of air source heat pumps is limited by climatic conditions. When heating in winter, when the outdoor temperature drops to the point where the heating capacity of air source heat pumps is not enough to meet the needs of heating users, its COP will drop, and even the heat pump unit will be shut down. forced shutdown

Method used

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  • Municipal drainage main canal air source heat pump system and circulation method
  • Municipal drainage main canal air source heat pump system and circulation method
  • Municipal drainage main canal air source heat pump system and circulation method

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Example 1: Air source heat pump system for municipal drainage main canal

[0028] An air source heat pump system for municipal drainage main canals, its composition includes: a fan 1 arranged in the main canal, the fan is connected to a finned heat exchanger 2 arranged in the main canal, and the finned heat exchanger It is connected to the air source delivery pipe 3 downstream of the main canal, the finned heat exchanger is connected to the compressor and the four-way reversing valve of the air source heat pump unit 4 arranged outside the main canal, and the air source heat pump unit is connected to the terminal User 5 connects.

Embodiment 2

[0030] A kind of air source heat pump system of municipal drainage main canal, its composition comprises: the fan that is arranged in the main canal, described fan is connected with the finned heat exchanger that is arranged outside the main canal, and described finned heat exchanger is connected with the main canal The downstream air source delivery pipe is connected, the finned heat exchanger is connected with the compressor and the four-way reversing valve of the air source heat pump unit arranged outside the main canal, and the air source heat pump unit is connected with the end user.

Embodiment 3

[0032] In the circulation method of the air source heat pump system of the municipal drainage main canal mentioned above, the air in the municipal drainage main canal is in direct or indirect contact with the sewage and soil, and the cold and heat that does not exchange heat with the external environment in the relatively closed main canal space is obtained, and the fan is used to carry out Forced convection heat exchange, the main channel air carries cold heat into the heat pump unit system, the cold heat is transmitted through the evaporator or condenser in the heat pump unit, and the cold heat is finally transferred to the end user's room. When running in winter, the finned heat exchanger is equivalent to an evaporator, and the heat exchanger at the user end is a condenser, which dissipates heat to the user. When running in summer, the four-way reversing valve is opened, and the finned heat exchanger is equivalent to a condenser. The end radiator is an evaporator, which prov...

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Abstract

The invention provides a municipal drainage main channel air source heat pump system and a circulation method. The application range of an air source heat pump is restrained by the climate conditions, during the heat supply in winter, when the outdoor temperature is lowered to a degree that the heat generating quantity of the air source heat pump cannot sufficiently meet the requirements of heating users, the COP (coefficient of performance) can be lowered, or even a heat pump machine unit is forced to stop. How to solve the too low air temperature problem or how to find the more proper air resources becomes the key matter. The municipal drainage main channel air source heat pump system comprises a fan (1), wherein the fan (1) is arranged in a main channel and is connected with a fin type heat exchanger (2) arranged in the main channel, the fin type heat exchanger is connected with an air source conveying pipe (3) arranged at the downstream of the main channel, is connected with a four-way reversing valve and a compressor of an air source heat pump machine unit (4) arranged outside the main channel, and the air source heat pump machine unit is connected with a tail end user (5). The system and the method provided by the invention are used for the utilization of the municipal drainage main channel air source heat.

Description

Technical field: [0001] The invention relates to an air source heat pump system and a circulation method of a municipal drainage main canal. Background technique: [0002] With the rapid development of the national economy and urbanization, people's requirements for the comfort of work, study, and living environments are gradually increasing, and while maintaining a high level of comfort, more energy is consumed, most of which are Non-renewable energy, so the development of new energy and improving the efficiency of existing energy use become the key. [0003] A heat pump is a device that transfers heat energy from a low-temperature heat source to a high-temperature heat source, and it is also a new energy technology that has attracted much attention around the world. Heat pumps usually first obtain low-grade heat energy from natural air, water or soil, and then provide people with high-grade heat energy that can be used through electricity. [0004] The low-temperature he...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B29/00
Inventor 钱剑峰刘亚媛
Owner HARBIN UNIV OF COMMERCE
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