阅读说明：本技术 一种新型分布式热网供暖系统 (Novel distributed heating network heating system ) 是由 苏树强 肖洪海 刘迟 于 2020-07-20 设计创作，主要内容包括：本发明提供一种新型分布式热网供暖系统,其至少包括：太阳能集热器、气水换热器、循环风机、散热末端、热单元,其特点是,太阳能集热器以空气为传热介质,内置相变蓄能芯,将多余太阳能热量储存在相变蓄能材料中；气水换热器一端接太阳能集热器,另一端接循环风机,太阳能集热器出来的热空气与气水换热器中冷水进行热交换,将温度较低的水加热汇入供水管路,通过散热末端将热量供给用户使用；供暖热水主要由热单元提供,太阳能集热器辅助加热,形成了整个分布式热网供暖系统。(The invention provides a novel distributed heating network heating system, which at least comprises: the solar energy heat collector is characterized in that the solar energy heat collector takes air as a heat transfer medium, a phase change energy storage core is arranged in the solar energy heat collector, and redundant solar heat is stored in a phase change energy storage material; one end of the gas-water heat exchanger is connected with the solar heat collector, the other end of the gas-water heat exchanger is connected with the circulating fan, hot air from the solar heat collector exchanges heat with cold water in the gas-water heat exchanger, the water with lower temperature is heated and converged into a water supply pipeline, and heat is supplied to a user through the heat dissipation tail end; the heating hot water is mainly provided by the heat unit, and the solar heat collector is used for auxiliary heating, so that the whole distributed heat supply network heating system is formed.)

1. A novel distributed heat network heating system, comprising at least: the solar heat collector comprises a solar heat collector, a gas-water heat exchanger, a circulating fan, a heat dissipation tail end and a heat unit, and is characterized in that the solar heat collector takes air as a heat transfer medium; one end of the gas-water heat exchanger is connected with the solar heat collector, the other end of the gas-water heat exchanger is connected with the circulating fan, hot air from the solar heat collector exchanges heat with cold water in the gas-water heat exchanger, the water with lower temperature is heated and converged into a water supply pipeline, and heat is supplied to a user through the heat dissipation tail end; the heating hot water is mainly provided by the heat unit, and the solar heat collector is used for auxiliary heating, so that the whole distributed heat supply network heating system is formed.

2. The system of claim 1, further comprising: the distributed heat supply network heating system is divided into three modules, namely a solar heat utilization module, a heat unit module and a hydraulic module.

3. The system of claim 1, further comprising: the solar heat collector uses air as a medium, exchanges heat between the collected heat and hot water through the air-water heat exchanger, and uses solar energy as an energy source.

4. The system of claim 1, further comprising: the solar heat collector comprises a two-way direct current vacuum tube with a spiral structure at the bottom and a phase change energy storage core arranged in the vacuum tube.

5. The system of claim 1, further comprising: the heat unit can be composed of an air source heat pump, a solar energy combined air source heat pump, a valley point electricity energy storage boiler and the like.

6. The system of claim 1, further comprising: the hydraulic module consists of a circulating water pump and auxiliary equipment thereof, and the heat dissipation tail end can be composed of a geothermal coil, a radiator and the like.

7. The system of claim 1, further comprising: the distributed heat supply network heating system preferentially uses solar energy and secondly uses the heat unit for heat supply.

8. The system of claim 1, further comprising: all pipelines of the distributed heat supply network heating system are controlled by temperature, and the temperature which can be sensed by the temperature probe is in a smaller range, so that the flow of the pipelines is controlled, and the air volume of the fan is controlled.

Technical Field

The invention relates to a novel distributed heating network heating system, and belongs to the field of new energy technology and clean energy.

Background

The energy is essential material resource for human production and life, plays a vital role in social development and human survival, and is large in energy use condition waste, heavy in pollution and low in resource utilization rate in China. The energy storage technology is an important technology for improving the energy application efficiency, adjusting the energy structure and further promoting the upgrading of the industrial structure in China and realizing the economic green growth, the containment growth and the continuous growth. Compared with the electricity storage technology, the energy storage technology has low cost and high efficiency, and has obvious competitive advantages in the fields of heat utilization and heat demand.

The heating modes in China mainly comprise coal-fired boilers, gas wall-mounted boilers, electric boilers, air source heat pumps and the like. The coal-fired boiler is adopted for heating, the heating capacity is strong, but the coal-fired boiler is often limited by the laying of a gas pipe network, the requirements of most people cannot be met, the use cost is too high, and the environmental pollution is serious; the wall-mounted gas boiler is suitable for household use, has a small heat supply range and high use cost, and has certain pollution to the environment; when the air source heat pump is used for heating, the energy-saving effect is good, but the defects that the heating temperature is low, the comfort cannot be guaranteed, the fault is high, the requirement on the maintenance specificity is high and the like exist.

The invention provides a novel distributed heat supply network heating system which mainly utilizes a phase change energy storage technology and combines solar energy to meet the requirements of building heating, domestic hot water and the like in a centralized manner. The system integrates renewable energy technology, comprises a solar heat utilization module, a heat unit and a hydraulic module, and forms a multi-energy complementary integrated system. The distributed heat supply network is optimized from design to operation according to the same principle: solar energy is preferentially utilized, and a heat supply technology in a heat unit is used as a final basic guarantee, so that the cascade utilization of energy is realized, and the operating cost of the system is reduced.

Disclosure of Invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide a novel distributed heat supply network heating system that can satisfy heating requirements and solar energy utilization, and reduce environmental pollution.

The invention provides a novel distributed heating network heating system, which comprises: the solar heat collector comprises a solar heat collector, a gas-water heat exchanger, a circulating fan, a heat dissipation tail end and a heat unit, and is characterized in that the solar heat collector takes air as a heat transfer medium; one end of the gas-water heat exchanger is connected with the solar heat collector, the other end of the gas-water heat exchanger is connected with the circulating fan, hot air from the solar heat collector exchanges heat with cold water in the gas-water heat exchanger, the water with lower temperature is heated and converged into a water supply pipeline, and heat is supplied to a user through the heat dissipation tail end; the heating hot water is mainly provided by the heat unit, and the solar heat collector is used for auxiliary heating, so that the whole distributed heat supply network heating system is formed.

Further, the distributed heating network heating system of the present invention is characterized in that: the distributed heat supply network heating system is divided into three modules, namely a solar heat utilization module, a heat unit module and a hydraulic module.

Further, the distributed heating network heating system of the present invention is characterized in that: the solar heat collector uses air as a medium, exchanges heat between the collected heat and hot water through the air-water heat exchanger, and uses solar energy as an energy source.

Further, the distributed heating network heating system of the present invention is characterized in that: the solar heat collector comprises a two-way direct current vacuum tube with a spiral structure at the bottom and a phase change energy storage core arranged in the vacuum tube, wherein the phase change energy storage core stores redundant solar energy.

Further, the distributed heating network heating system of the present invention is characterized in that: the hydraulic module consists of a circulating water pump and auxiliary equipment thereof, and the heat dissipation tail end can be composed of a geothermal coil, a radiator and the like.

Further, the distributed heating network heating system of the present invention is characterized in that: the heat unit can be composed of an air source heat pump, a solar energy combined air source heat pump, a valley point electricity energy storage boiler and the like.

Further, the distributed heating network heating system of the present invention is characterized in that: the distributed heat supply network heating system preferentially uses solar energy and secondly uses the heat unit for heat supply.

Further, the distributed heating network heating system of the present invention is characterized in that: all pipelines of the distributed heat supply network heating system are controlled by temperature, and the temperature which can be sensed by the temperature probe is in a smaller range, so that the flow of the pipelines is controlled, and the air volume of the fan is controlled.

The distributed heat supply network heating system utilizes solar energy, converts the solar energy into heat energy to generate heat exchange with water, and redundant heat is stored in the energy storage material in the energy storage core.

The distributed heat supply network heating system can realize energy cascade utilization, renewable energy utilization and phase change heat storage, simultaneously improves the operating efficiency and the solar energy utilization rate of the heating system, and the heat unit can avoid the operation of the system under the most unfavorable working condition, thereby ensuring the stability of the system operation and improving the system operation efficiency.

Drawings

Fig. 1 shows a schematic diagram of a distributed heating network heating system according to the present invention.

Detailed Description

The invention provides a novel distributed heating network heating system, which at least comprises: the solar energy heat collector, gas-water heat exchanger, circulating fan, heat dissipation end, thermal unit. The heat dissipating ends may be formed from geothermal coils, radiators, and the like. The heat unit can be composed of an air source heat pump, a solar energy combined air source heat pump, a valley point electricity energy storage boiler and the like. The novel distributed heat supply network heating system preferentially utilizes solar energy, and the heat supply technology in the heat unit is used as the final basic guarantee, so that the requirements of building heating, domestic hot water and the like are met.

The distributed heat supply network heating system is characterized by comprising a heat collector heating mode, a heat unit heating mode, a hybrid heating mode, a heat storage mode and a domestic hot water mode, and can be freely set according to the requirements of users in the operation process of the system.

The heat supply mode of the heat collector is as follows: in the time period when solar energy is sufficient and heating is needed, hot air in the heat collector enters the air-water heat exchanger to exchange heat with water, and the heat is taken out through flowing hot water; the flowing hot water releases heat through the heat dissipation tail end, the indoor temperature is increased, and the requirement of heating a room in winter is met.

Thermal unit heating mode: the heat unit is the last basic guarantee of heating system, and when no solar energy, provides the heat by heat unit hot water, satisfies the building heat supply demand. The hot water of the heat unit is provided by heat exchange between a heat exchanger in the air source heat pump and water or provided by a valley point energy storage boiler.

And (3) hybrid heating mode: under the condition of insufficient solar energy, the heat unit and the heat collector jointly supply heat to meet the heat supply requirement of the building. The hot water of the heat unit is provided by heat exchange between a heat exchanger in the air source heat pump and water or provided by a valley point energy storage boiler.

A heat storage mode: under the condition that solar energy is sufficient and surplus exists, the phase-change energy storage core completes storage of solar heat through the phase-change energy storage material, and the stored energy can release heat when the solar energy is insufficient. The phase-change energy storage core improves the utilization rate of solar energy and improves the stability of the heat collector.

The life hot water mode: through the combination of air type solar energy and a heat unit heat supply technology, hot water required by life can be provided at any time.

In the operation process of the system, the system is regulated and controlled through PLC logic control, and a temperature monitor and a pressure monitor are arranged on each pipeline to provide system data. The user side can freely set the required temperature and start and stop the system to regulate the temperature of the room. The air outlet temperature of the air type solar heat collector is controlled by the temperature probe of the outlet, and the temperature of a room can be controlled by adjusting the bypass circulating water quantity on the user side.

Effects of the implementation

This novel distributed heat supply network heating system can realize energy cascade utilization, renewable energy utilization, phase change heat accumulation, has improved the operating efficiency and the solar energy utilization ratio of system simultaneously, and the operation of system under the most unfavorable operating mode can be avoided to the thermal unit to the stability of system's operation has been guaranteed.

The novel distributed heat supply network heating system has the characteristics of environmental protection, energy conservation, no pollution emission and the like; the energy storage material is non-toxic and non-corrosive, and has high energy storage density and small occupied area; PLC programming control is adopted, and remote management operation can be realized; the surplus energy is efficiently utilized, and the operation cost is low.