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A district heating system and method for high and low areas using ground source heat pump as heat source

A ground source heat pump and heating system technology, applied in hot water central heating systems, heating systems, heating methods, etc., can solve the problems of violation of renewable energy, increased initial investment cost of heat exchange and pressurization equipment, energy loss, etc., Achieve the effect of ensuring efficient and low-cost utilization, improving heating effect, and low initial investment cost

Inactive Publication Date: 2021-01-29
CHINA NORTHWEST ARCHITECTURE DESIGN & RES INST CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, from the perspective of energy saving, it can be found that such a solution will bring some problems, that is, the process of heat exchange and pressurization of the hot water used in the high and low areas will cause energy loss on the one hand, and on the other hand The increase of heat exchange and pressurization equipment will also increase the initial investment cost, which is contrary to the original intention of research and development of renewable energy

Method used

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  • A district heating system and method for high and low areas using ground source heat pump as heat source
  • A district heating system and method for high and low areas using ground source heat pump as heat source
  • A district heating system and method for high and low areas using ground source heat pump as heat source

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Effect test

Embodiment 1

[0048] The traditional high and low district heating system with ground source heat pump as heat source described in the background of the present invention, such as figure 1 As shown, the hot water from the heat source well 13 enters the evaporator 12 in the heat pump unit 1 through the heat source side circulation pump 7, and provides a heat source for the high-temperature heat medium passing into the condenser 11, and the heating return water in the condenser 11 After exchanging heat with the high-temperature heat medium to improve the thermal quality, the outlet water from the condenser 11 is divided into two paths and sent to the high-zone heat exchanger 2 and the low-zone heat exchanger 3 respectively, and then passes through the residential high-zone circulation pump 6 and the residential low-zone heat exchanger respectively. District circulation pump 5 sends to heating users in high and low districts.

[0049] The present invention provides a high and low district heat...

Embodiment 2

[0055] The present invention uses a ground source heat pump as a heating method for high and low zones, comprising the following steps:

[0056] a. The hot water in the heat source well 13 is supplied to the evaporator of the heat pump unit 1 through the heat source side circulation pump 7 to provide heat, and the hot water released by the evaporator is injected into the heat source well 13 through the pipeline to complete the circulation on the heating side ;

[0057] b. The heat medium in the evaporator is heated by hot water and then circulated to the condenser. After the high-temperature heat medium releases heat in the condenser and cools down, it returns to the evaporator to heat again to complete the heat exchange;

[0058] c. Two sets of independent water systems in the same condenser are heated by exothermic high-temperature heat medium, and then respectively pass through the high-zone circulation pump 6 and the low-zone circulation pump 5 to provide heating for high-...

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Abstract

The invention relates to the field of new energy applications, specifically a heating system and method for high and low zones using ground source heat pumps as heat sources, including heat source wells on the heating side, circulation pumps and heat pump units on the heat source side, and low zone circulation pumps on the heating side And the high area circulation pump; the heat pump unit includes a condenser and an evaporator connected through a heat medium circuit; the water inlet of the evaporator is connected to the water outlet of the circulation pump on the heat source side through the water inlet pipe, and the return water outlet is connected to the water injection port of the heat source well through the water return pipe Connection, the water outlet of the heat source well is connected to the water inlet of the circulation pump on the heat source side; there are heat exchange copper tubes inside the condenser, and end covers are provided at both ends. and the low-zone heating inlet; the condenser end cover is provided with a partition baffle, which divides the tube bundle composed of heat-exchanging copper tubes into two independent water systems, the high-zone heating and the low-zone heating, which are connected to the high-zone circulating pump and the low-zone heating respectively. The low zone circulation pump is used for heating of high zone heating users and low zone heating users.

Description

technical field [0001] The invention relates to the application field of new energy, in particular to a heating system and method for high and low zones using a ground source heat pump as a heat source. Background technique [0002] The gap in energy supply and the unreasonable energy consumption structure determine the importance and urgency of energy issues. For this reason, the central government promulgated and implemented the "Renewable Energy Law" in January 2006. Since then, water energy, wind energy, and biomass energy The application of recyclable clean energy such as solar energy, geothermal energy, etc. in the construction industry has increasingly attracted the attention of researchers. Among them, the use of ground source heat pumps for heating is a widely used renewable energy utilization method. [0003] When ground source heat pumps are used to provide heat sources for high-rise buildings, facing two independent water systems in the high and low areas of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24D3/18F24D19/00
Inventor 刘凯王楠李楠
Owner CHINA NORTHWEST ARCHITECTURE DESIGN & RES INST CO LTD