CN102777053B - Ecological residence system - Google Patents

Abstract

The application relates to an ecological residential system, including: electrical equipment; a biogas power generation system, including a biogas digester and a biogas generator set connected to the biogas digester to generate electricity using the biogas generated in the biogas digester; connected to the biogas generator to The electrical energy is transmitted to the electrical energy output interface of the electrical equipment; the heating and ventilation system includes a ground source heat pump system, and the end of the pipeline of the ground source heat pump system is connected with the biogas digester of the biogas system, so that the heating and ventilation system Heat is transferred to the digester, warming the digester. This application adopts the scheme that the HVAC system increases the temperature of the biogas digester, that is, the end of the HVAC system is connected to the biogas digester, so that the heat energy in the pipeline of the ground source heat pump system is transferred to the biogas digester. The invention increases the temperature of the biogas tank by using the low-level energy geothermal energy to generate high-level energy such as biogas, which is equivalent to realizing the conversion between low-level energy and high-level energy, reducing energy waste and improving energy utilization.

Description

an ecological housing system

technical field

The invention relates to the field of intelligent houses, and more specifically relates to an ecological house system.

Background technique

With the continuous development of science and technology and social economy, people's material life continues to improve, and the demand for energy is also increasing. In contrast, the reserves of non-renewable energy (such as oil and coal) are rapidly decreasing. trends, and the fact that the use of the aforementioned non-renewable energy sources is causing increasing air pollution.

Therefore, in order to cope with energy shortage and environmental degradation, various clean and renewable new energy sources have been developed, such as photovoltaic systems and biogas systems, among which, the biogas system uses the biogas produced by anaerobic fermentation as fuel to generate electricity through the engine Or thermal energy, both of these two energy sources have the characteristics of energy saving, safety and environmental protection, and are highly respected and applied.

However, during the process of creating the present invention, the inventors found that the amount of biogas produced by the biogas digesters of the existing biogas system is closely related to the temperature. When the temperature is low, the amount of biogas produced is small, which cannot meet the demand for power generation.

Contents of the invention

In view of this, the purpose of the present invention is to provide an ecological housing system to solve the problem in the prior art that the temperature of the biogas tank is too low to affect the utilization of biogas.

Technical scheme of the present invention is as follows:

An ecological housing system comprising:

Electrical equipment;

A biogas power generation system, including a biogas digester and a biogas generator set connected to the biogas digester to use the biogas generated in the biogas digester to generate electricity;

Connecting the biogas generator to transmit electric energy to the electric energy output interface of the electric device;

The heating and ventilation system includes a ground source heat pump system, the end of the pipeline of the ground source heat pump system is connected with the biogas pit of the biogas system, so as to transfer the heat of the heating and ventilation system to the biogas pit, and increase the heat of the biogas pit. temperature.

Preferably, in the aforementioned ecological housing system, the HVAC system further includes a photothermal system, and the pipes of the geothermal heat pump system communicate with the heat storage pool of the photothermal system.

Preferably, in the aforementioned ecological housing system, the end of the ground source heat pump is a heating coil, which is arranged at the bottom of the biogas pool.

Preferably, in the above-mentioned ecological housing system, the bottom of the biogas tank is provided with a heat-conducting component, which is connected to a heating coil as an end.

Preferably, in the above ecological housing system, the bottom of the biogas pool is made of heat conducting material.

Preferably, in the aforementioned ecological housing system, the end of the ground source heat pump is a capillary tube wound around the wall of the biogas tank.

Preferably, in the above-mentioned ecological housing system, a heat conduction component is provided at the part where the wall of the biogas digester is connected to the end capillary.

Preferably, in the aforementioned ecological housing system, the end of the ground source heat pump includes a warming coil and a capillary, wherein the warming coil is arranged at the bottom of the biogas tank, and the capillary is wound around the wall of the biogas tank.

Preferably, in the aforementioned ecological housing system, the biogas generating set is specifically a dual-fuel generating set using biogas and diesel as fuel.

It can be seen from the above technical solution that the present invention adopts the scheme that the HVAC system increases the temperature of the biogas digester, that is, the end of the HVAC system is connected to the biogas digester, so that the heat energy generated by the ground source heat pump is transferred to the biogas digester and realized as biogas pool warming purposes. Since the heat generated by the ground source heat pump itself belongs to a low-level energy source, the present invention uses the low-level energy geothermal heat to increase the temperature of the biogas digester to generate high-level energy such as biogas, which is equivalent to realizing the conversion between low-level energy and high-level energy, reducing Energy waste improves energy utilization.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

Fig. 1 is the structural representation of a kind of ecological house system that the embodiment of the present invention provides;

Fig. 2 is the structural schematic diagram of a kind of ecological housing system provided by the embodiment of the present invention, in this system, the end of the HVAC system is a heating coil;

Fig. 3 is the schematic structural diagram of a kind of ecological housing system provided by the embodiment of the present invention, in this system, the end of HVAC system is capillary;

Fig. 4 is the schematic structural diagram of a kind of ecological house system provided by the embodiment of the present invention, in this system, the end of HVAC system comprises capillary and heating coil;

Fig. 5 is a schematic structural diagram of another ecological housing system provided by an embodiment of the present invention.

Detailed ways

Biogas fermentation, also known as anaerobic digestion, refers to the use of human and animal feces, straw, sewage and other organic matter in a sealed biogas digester, under anaerobic conditions (without oxygen), to be decomposed and transformed by a variety of biogas fermentation microorganisms, and finally produce In the process of biogas, microorganisms are the most active factor in this process. They decompose and transform various solid or dissolved complex organic matter according to their respective nutritional needs, and finally generate biogas. Biogas is a mixture and can be burned. Because this gas was first discovered in swamps, it is called biogas. Its main components are about 55% to 70% of methane and about 25% to 40% of carbon dioxide. In addition, there are small amounts of hydrogen, hydrogen sulfide, carbon monoxide, nitrogen, and ammonia.

Biogas fermentation is completed by a variety of bacteria (yeasts). They need certain living conditions during their metabolism and growth and reproduction in the biogas tank. Only by artificially creating suitable production conditions for them can a large number of The rapid reproduction of microorganisms accelerates the decomposition of organic matter in the biogas digester. On the other hand, certain conditions are also required to control the normal operation of the fermentation process in the biogas digester. Therefore, only by meeting the growth conditions of microorganisms and the normal operation conditions of the biogas digester can the effect of high gas production rate be obtained.

Among various conditions, temperature is one of the important conditions. The temperature of the fermented liquid in the suitable temperature biogas tank has a great influence on the amount of biogas produced. This is because the higher the temperature in the most suitable temperature range, the more biogas bacteria The faster the growth and reproduction, the more biogas will be produced. If the temperature is not suitable, the biogas bacteria will grow slowly and produce little or no gas.

In order to increase the temperature in the biogas digester, people generally choose to build a biogas digester in a place where the sun can shine all year round. This method is completely dependent on the weather and location. of heat. In the process of invention and creation, the inventor thought of using solar thermal system or even a biogas boiler to increase the temperature of the biogas digester, but after careful analysis, it was found that the problem of solar thermal instability always existed, which affected the biogas production of the biogas digester. The high-level energy generated by the biogas boiler heats the low-level energy generated by the biogas digester, but there is a problem of energy waste.

Therefore, after many tests and analyzes, this paper adopts the scheme of heating the biogas digester by the HVAC system, that is, the heating coil or capillary tube of the HVAC system surrounds the wall of the biogas digester, so that the heat energy generated by the ground source heat pump is transferred to the biogas Pool, to achieve the purpose of warming the biogas pool. Since the heat generated by the ground source heat pump itself is a low-level energy source, it will not cause too much energy waste, and it also overcomes the problem of being greatly affected by the weather.

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The application provides an ecological residential system, a structure of which is shown in Figure 1, including a HVAC system 1 (not shown in the figure), a biogas power generation system 2, an electrical energy output interface 3 and electrical equipment 4, wherein:

The HVAC system 1 includes a ground source heat pump system 11, and the ground source heat pump system 11 includes a heat pump unit 111 and a pipeline 112 for transporting liquid or gas.

The biogas power generation system 2 includes a biogas pit 21 and a biogas generator set 22 connected to the biogas pit 21, the biogas pit 21 is used to generate biogas, and the biogas generator set 22 is used to generate electricity using the biogas, and The electric energy is transmitted to the electric energy output interface 3 .

The electric energy output interface 3 is connected with the electrical equipment 4 for transmitting the electrical energy transmitted from the biogas generating set 22 to the electrical equipment 4 . The specific form of the power output interface 3 may be a port connected to a plug board, or it may be a plug board itself.

The end 113 of the pipeline 112 is connected to the biogas tank, and is used for transporting heat to the biogas tank 21 . Specifically, when the heat pump unit 111 is working, the liquid in the pipeline 112 is formed to circulate, and when the liquid flows to the end 113, the heat is transferred to the biogas digester 21 through heat displacement, thereby realizing the temperature increase of the biogas digester 21 the goal of.

The end 113 can have a variety of structural forms, for example, it can be in the form of a heating coil. As shown in FIG. The bottom is transferred to the biogas digester to promote the growth and reproduction of biogas bacteria in the biogas digester 21, thereby increasing the amount of biogas produced. The structure of this method is simple and effective, and the effect is obvious.

For another example, the end 113 may be in the form of a capillary. As shown in FIG. 3 , the capillary is wound on the wall of the biogas digester 21 and transfers heat to the biogas digester 21 through the wall of the biogas digester 21 .

For another example, the end 113 may include the two structural forms of the above-mentioned warming coil and capillary, as shown in FIG. A location at or near the bottom of a pool. The capillary tube and the warming coil transfer heat to the biogas digester through the wall of the biogas digester 21 and the bottom of the biogas digester 21 to increase the temperature in the biogas digester 21 . This structural form can ensure that all parts of the biogas digester 21 are evenly heated, and better promote the growth and reproduction of biogas bacteria.

In some other embodiments, the structure of the ecological house system can also be shown in Figure 5. On the basis of the above-mentioned embodiments, the HVAC system 1 further includes a photothermal system 12, which is used for ground source heat pump system 11 provides a heat source, the photothermal system 12 includes a heat collector 121 and a heat storage pool 122 , and the pipeline 112 of the ground source heat pump system communicates with the heat storage pool 122 .

The bottom of the biogas digester 21 can be provided with a heat conducting component, which is directly connected to the heating coil as the end 113 . Alternatively, the bottom of the biogas tank 21 is made of heat-conducting material, and is directly connected to the heating coil. Similarly, the part where the wall of the biogas digester 21 is connected to the end capillary is also provided with some materials with good thermal conductivity, such as metal.

The biogas generator set can be a dual-fuel generator set that uses biogas and diesel as fuel to compress the mixture of "air combustion gas" in the cylinder, burn it with ignition fuel, and get power through the reciprocating motion of the piston, and then connect the generator generate electricity. This kind of unit can work with liquid fuel or gaseous fuel, and can adapt to changes in biogas production and methane concentration (diesel is used as fuel to generate electricity when the concentration of biogas is insufficient), and the work of using gaseous fuel to generate electricity with diesel fuel After stopping, there will be no residual unburned gas in the generator set.

The electrical equipment includes various electrical equipment and electronic equipment, such as washing machines, air conditioners, televisions, computers, lamps, and the like.

This application provides an ingenious way of thinking, using low-level energy such as geothermal energy to increase the temperature of the biogas digester and increase the production of biogas, which is equivalent to converting low-level energy into high-level energy, improving the utilization rate of geothermal energy, and at the same time increasing the biogas output. Utilization rate, to avoid waste of energy caused by other high-level energy that consumes limited resources.

It should be noted that the various embodiments in this specification can complement each other, each embodiment focuses on the differences from other embodiments, and the same and similar parts of the various embodiments can be referred to each other.

In addition, it should also be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations, any such actual relationship or order exists. Additionally, herein, the terms "comprises", "comprising", or any other variation thereof are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a series of elements includes not only those elements, but also includes Other elements not expressly listed, or elements inherent in the process, method, article, or apparatus are also included. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. A kind of ecological house system, is characterized in that, comprises: Electrical equipment; A biogas power generation system, including a biogas digester and a biogas generator set connected to the biogas digester to use the biogas generated in the biogas digester to generate electricity; Connecting the biogas generator to transmit electric energy to the electric energy output interface of the electric device; The heating and ventilation system includes a ground source heat pump system, the end of the pipeline of the ground source heat pump system is connected with the biogas pit of the biogas system, so as to transfer the heat of the heating and ventilation system to the biogas pit, and increase the heat of the biogas pit. temperature; Wherein, the ground source heat pump system includes a heat pump unit. When the heat pump unit is working, the liquid in the pipes of the ground source heat pump system forms a circulation. When the liquid flows to the end, the heat is transferred to the biogas digester through heat replacement , to achieve warming to the biogas digester; Wherein, the HVAC system also includes a photothermal system, and the pipeline of the ground source heat pump system is connected with the heat storage pool of the photothermal system; The end of the ground source heat pump is a warming coil and/or a capillary tube, the heating coil is arranged at the bottom of the biogas pool, and transfers heat to the biogas pool through the bottom of the biogas pool, and the capillary is wound around the biogas pool The pool wall, and the heat is transferred to the biogas digester through the biogas digester wall. 2. The ecological housing system according to claim 1, characterized in that, the bottom of the biogas tank is provided with a heat-conducting component, which is connected with a heating coil as an end. 3. The ecological housing system according to claim 1, characterized in that, the bottom of the digester is made of heat-conducting material. 4 . The ecological housing system according to claim 1 , characterized in that, a heat-conducting component is provided at the part where the wall of the biogas tank is connected with the end capillary. 5 . 5. The ecological house system according to claim 1, wherein the end of the ground source heat pump includes a warming coil and a capillary, wherein the warming coil is arranged at the bottom of the digester, and the capillary is wound on the wall of the biogas digester. 6. The ecological house system according to claim 1, characterized in that, the biogas generating set is specifically a dual-fuel generating set using biogas and diesel as fuel.