CN106766364B - A kind of energy pile - hollow interlayer steel pipe concrete column geothermal heating system - Google Patents

Abstract

The invention relates to an energy pile-a hollow interlayer concrete-filled steel pipe column geothermal heating system, which belongs to the field of heating and ventilation engineering. The heating system includes energy piles, hollow interlayer concrete-filled steel pipe columns, plate heat exchangers, water source heat pump units, and indoor heating and air-conditioning systems. The energy pile is an application technology that combines the vertical buried pipe heat pump system with the pile foundation, that is, heat exchange pipes are arranged in the pile foundation; the hollow interlayer concrete-filled steel pipe column is used as the vertical load-bearing system of the building structure, and at the same time, the interlayer concrete Laying plumbing pipes for indoor heating and air-conditioning systems; the plate heat exchanger is used for heat energy exchange; the water source heat pump unit is composed of compressors, condensers, evaporators, circulation pumps, etc., and converts part of geothermal energy into usable high-level energy . The invention provides an energy pile-a hollow interlayer concrete-filled steel tube column geothermal heating system, which can be used in a building structure using a pile foundation and a hollow interlayer concrete-filled steel tube column, and can realize the purpose of saving energy.

Description

A kind of energy pile - hollow interlayer steel pipe concrete column geothermal heating system

technical field

The invention relates to the field of heating and ventilation engineering.

Background technique

Ground source heat pump is recognized as a sustainable application technology because of its recovery and recycling of geothermal energy, and its function is essentially a seasonal energy storage mechanism. Compared with conventional refrigeration and heating methods, ground source heat pumps have many advantages: first, it is a renewable and clean energy source that does not pollute the environment; Decrease in thermal capacity. In addition, the efficiency of the unit is high, and the heat exchanger does not have the problem of frosting and defrosting in winter. At present, ground source heat pump has been considered as the most potential energy-saving and environment-friendly HVAC technology in the way of realizing green buildings.

Ground source heat pump systems usually require a large enough outdoor area to install buried pipe heat exchangers, that is, to arrange buried pipe heat exchange systems in soil, surface water or groundwater. Compared with no advantage, it has become the main obstacle restricting the development of ground source heat pump system. The core of the ground source heat pump system is the ground heat exchanger. Geothermal heat exchangers come in various forms, and can be installed horizontally in trenches or vertically in shafts in the shape of a "U" tube. If the vertical buried pipe ground source heat pump system is combined with the pile foundation, a new type of application technology-energy pile will be formed, that is, heat exchange pipes are arranged in the pile foundation. The essential difference between energy piles and traditional earth heat collection systems or underground heat exchange drilling systems is that as a heat exchanger connected to the earth, it has structural functions and does not have to be built separately. Concrete and steel have higher thermal conductivity than soil, which further improves energy conversion efficiency. The energy pile adopts this new type of buried pipe, which solves the problems of large area requirements and high drilling costs. The relatively stable underground temperature provides conditions for foundation piles to act as geothermal heat exchangers, while helping to reduce heat pump compressors when heating and cooling buildings and being more environmentally friendly.

Hollow sandwich concrete-filled steel tube column is a vertical load-bearing member widely used in high-rise and super high-rise building structures. It is characterized in that the concrete is restrained by steel tubes on both sides of the inner and outer sides, thereby improving the compressive bearing capacity of the concrete and reducing the weight of the column. The pipes of the heating and air-conditioning system and the hot water system are laid in the interlayer concrete, thereby saving the building space. The invention combines the hollow sandwich steel pipe concrete column with the energy pile, thereby organically combining the ground source heat pump system and the building structure, and has the characteristics of good economic benefits, energy saving, convenient construction and the like.

Contents of the invention

In order to save energy and promote the popularization and application of the ground source heat pump system, the present invention provides an energy pile—a hollow interlayer concrete-filled steel pipe column geothermal heating system, which combines the energy pile with the hollow interlayer concrete-filled steel pipe column, and the ground source heat pump System, indoor air-conditioning, heating and air-conditioning system are arranged inside the structural components, which can save building space, rationally utilize geothermal energy, convenient and quick construction, and have good social and economic benefits.

Technical scheme of the present invention is as follows:

An energy pile-a hollow interlayer concrete-filled steel pipe column geothermal heating system is characterized in that the system includes an energy pile, a hollow interlayer concrete-filled steel pipe column, a plate heat exchanger, a water source heat pump unit, and an indoor heating and air-conditioning system. The vertical heat pump system in the energy pile exchanges heat with the water source heat pump unit through the plate heat exchanger, and the heat is input into the indoor heating and air conditioning system. The pile foundation of the energy pile is used as the foundation of the hollow interlayer concrete-filled steel pipe column, and the pipes of the indoor heating and air-conditioning system are arranged in the interlayer concrete of the column.

The present invention has the following effective effects:

1. The pipes of the indoor heating and air-conditioning system and the hot water system are arranged in the column, so as to save the building space.

2. The purpose of saving energy is achieved through the ground source heat pump system, and there is no pollution to the environment.

3. There is no need to set up an outdoor buried heat exchanger, thereby reducing costs and making construction more convenient.

4. It can use geothermal energy to provide clean energy for buildings, which has good social and comprehensive economic benefits.

The energy pile-hollow interlayer concrete-filled steel tube column geothermal heating system can save energy, is convenient for construction, has good social and economic effects, and has broad engineering application prospects.

Description of drawings

Fig. 1 is the elevation view of the system of the present invention.

Fig. 2 is a cross-sectional view of the hollow interlayer concrete filled steel tube column of the present invention.

In the figure: 1—energy pile, 2—hollow interlayer concrete-filled steel pipe column, 3—plate heat exchanger, 4—water source heat pump unit, 5—indoor heating and air conditioning system

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings.

As shown in the accompanying drawings, the present invention is an energy pile-a hollow interlayer concrete-filled steel tube column geothermal heating system, which consists of an energy pile, a hollow interlayer concrete-filled steel tube column, a plate heat exchanger, a water source heat pump unit, and an indoor heating and air-conditioning system. Its assembly procedure is as follows:

a. Prefabricate the steel pipe member of the hollow interlayer concrete filled steel pipe column 2 in the factory;

b. On-site energy pile 1 construction;

c. Install the pipes of the indoor heating and air-conditioning system 5 after the steel pipes of the hollow interlayer concrete-filled steel pipe columns 2 are hoisted in place, and pour concrete;

d. Install plate heat exchanger 3 and water source heat pump unit 4 and other equipment.

The invention provides an energy pile-a hollow interlayer concrete-filled steel tube column geothermal heating system. The energy pile and the hollow interlayer concrete-filled steel tube column are combined together, and a ground-source heat pump system and an indoor air-conditioning heating and air-conditioning system are arranged inside the structural member. The construction space can be saved, the geothermal energy can be rationally utilized, the construction is convenient and quick, and the utility model has good social and economic benefits.

Claims (4)

1. a kind of energy pile-Concrete-filled Double Skin Steel Tube Columns geothermal heating system, it is characterised in that: its system includes the energy Stake (1), Concrete-filled Double Skin Steel Tube Columns (2), plate heat exchanger (3), water source heat pump units (4), indoor heating air-conditioning system (5)；The energy pile (1) is the application technology for combining perpendicularly buried pipe heat pump system with pile foundation, i.e., in pile foundation lining If heat exchanging pipe；Vertical bearing system of the Concrete-filled Double Skin Steel Tube Columns (2) as building structure, while interlayer is mixed The plumbing pipe of indoor heating air-conditioning system (5) is laid in solidifying soil；The plate heat exchanger (3) is used for thermal energy exchange；The water Source heat pump unit (4) is made of compressor, condenser, evaporator, circulating pump, converts utilizable height for part geothermal energy The position energy.

2. energy pile according to claim 1-Concrete-filled Double Skin Steel Tube Columns geothermal heating system, it is characterised in that: The energy pile (1) is the application technology for combining perpendicularly buried pipe heat pump system with pile foundation, i.e., sets heat in pile foundation lining Pipeline is exchanged, pipe laying arrangement can select pipe laying according to stake diameter using " W " type, single U-typed, double U-typeds or three U-typeds Quantity, generallys use high density polyvinyl-chloride or polybutene plastic tube, and energy pile can be according to the type of pile foundation using cast-in-place mixed Solidifying soil energy pile, precast concrete energy pile or steel energy pile.

3. energy pile according to claim 1-Concrete-filled Double Skin Steel Tube Columns geothermal heating system, it is characterised in that: Vertical bearing system of the Concrete-filled Double Skin Steel Tube Columns (2) as building structure, while room is laid in sandwich concrete The plumbing pipe of interior heating and air-conditioning system (5), Concrete-filled Double Skin Steel Tube Columns (2) can need to use according to structure different Cross-sectional shape.

4. energy pile according to claim 1-Concrete-filled Double Skin Steel Tube Columns geothermal heating system, it is characterised in that: The plate heat exchanger (3) is used for thermal energy exchange, and shallow layer geothermal energy is exchanged to water source heat pump units (4), will be followed in building Ring water system and ground water regime separate, so that geothermal energy be made to can be not only used for indoor heating air-conditioning system (5), can also directly carry out Hot water supply.