Method for supplying heat by means of sea of steam

Abstract

The present invention creates a new heat supply method, namely a method for supplying heat by means of a sea of steam. The present invention belongs to the field of heat supply. A heat supply device fabricated according to the conception of the present method thoroughly solves the water return problem of steam heating. A pressure-bearing container and a pressure-bearing heat-exchange device are connected to form an integral whole, jointly forming a closed system. The pressure-bearing container is placed at the very bottom, and is pre-loaded with a liquid. The interior of the closed system is treated until a vacuum state is reached, the liquid in the container is heated, and then generated steam is uniformly dispersed in the internal space of the whole closed system. When the internal temperature of the closed system exceeds the external temperature, the steam comes into contact with the inner wall of the closed system, continuously releases latent heat, and condenses to a liquid, which spontaneously flows to a lower place under the action of gravity and finally flows into the pressure-bearing container again, after which the cycle of evaporating the liquid by means of heating continues without end. The present invention is mainly used for industrial, commercial and household heat supply.

Description

Air sea heating method TECHNICAL FIELD The present application belongs to the technical field of heating BACKGROUND So far, the world's mainstream heating technology has air source heat pump heating, gas hot air furnace heating, heat conducting oil boiler heating, steam boiler heating, electric heating direct heating and the like. The above-mentioned heating methods have their own advantages and disadvantages, and the most suitable heating method is selected according to different use scenarios. The present application is derived from steam boiler heating. The traditional steam boiler heating method is divided into two categories: 1: cogeneration, the waste steam after power generation is sold by the thermal power plant and connected to each steam point through a pipeline. 2: self-provided steam boiler, burning as needed. The self-provided steam boiler is further divided into coal-fired, gas-fired, oil-fired, biomass-fired and electric heating, etc. Regardless of the type of steam heating, continuous water supply is required, and the problem of backwater plagues countless users. Since the steam boiler heating was invented, the problem of recycling the waste heat of backwater has not been effectively solved. TECHNICAL PROBLEM The most fundamental technical problem of the traditional steam boiler heating is that the backwater is difficult to utilize, and the present application can completely solve the problem of backwater of the traditional steam boiler heating. TECHNICAL SOLUTION First, a pressure vessel is manufactured, the capacity of which is determined according to the total capacity of the pressure heat exchange equipment. The pressure vessel and the pressure heat exchange equipment are connected to form a whole, which constitutes a closed system. The pressure vessel is placed at the bottom, and the pressure vessel is preloaded with liquid. Then, the inside of the closed system is processed to be in a vacuum state. There are two processing methods: 1. vacuum extraction method, which extracts the air in the closed system (suitable for liquids other than water); 2. pressurized exhaust method, which pre-installs exhaust valves at key nodes of the whole closed system (the number and installation position of the exhaust valves are determined according to the structure of the pressure heat exchange equipment), heats the liquid in the container to make the liquid evaporate in large quantities, generates a large amount of steam, and then opens the pre-installed exhaust valve to exhaust the air by the internal steam pressure (suitable for water as the preloaded liquid, because water vapor is non-toxic and harmless, and water vapor overflow is allowed when the exhaust valve is opened). After the above operation is completed, the inside of the closed system is in a vacuum state without air at room temperature. The preloaded liquid in the pressure vessel is heated to drive the liquid to evaporate in large quantities to generate a large amount of steam. Because the inside of the closed system is in a vacuum state, the generated steam is uniformly dispersed in the whole space inside the closed system. When the temperature inside the closed system is higher than the outside temperature, the steam inside the closed system contacts the inner wall of the closed system and continuously releases latent heat to condense into liquid. Under the action of gravity, the liquid spontaneously flows to the low place and finally reflows into the pressure vessel to continue to be heated and evaporated, which circulates repeatedly and endlessly. The present application is not limited by the structure and shape of the pressure heat exchange equipment. As long as the heat exchange equipment can withstand pressure and can be connected to the pressure vessel by technical means to form a closed system, it is suitable for the present application. Advantages Compared with the existing steam boiler heating method, the present application has the following advantages: 1. No need for continuous water replenishment, which eliminates the large waste of freshwater resources. 2. The problem of water return in steam heating is completely solved, and the waste of steam return heat will never occur again. 3. Because there is no waste of return heat, the energy consumption is greatly reduced, and the energy-saving effect is remarkable. 4. Abandoning the traditional steam boiler heating which needs to be equipped with many devices such as steam flow meter, steam trap, flash tank, water pump, etc. .

[0009] 5. The gas sea heating method is simple in concept and strong in implementation, and can be miniaturized, which is the first choice for modular heating. 6. The control is simple. Compared with the traditional steam heating which needs to frequently open and close the valve to ensure constant temperature, the present application only needs to control one of the temperature transmitter and the pressure transmitter. 7. The upper limit of the temperature is high and stable and reliable. Compared with the existing heat conduction oil boiler heating mode, the application has the following beneficial effects: 1: The heat conduction oil boiler needs to circulate the heat conduction oil in the heating system by a high-temperature oil pump, which belongs to liquid circulation, has large circulation resistance and high energy consumption. The gas sea heating method is simple in concept, belongs to gas-liquid circulation, does not need complex equipment, refers to natural principles, and has no additional energy consumption. 2: Because the heat conduction oil boiler is liquid circulation, a large amount of heat conduction oil is needed, and the cost is high. The gas sea heating method is gas-liquid circulation, only a small amount of preloaded liquid is needed, the whole closed system can be uniformly heated, and the cost is low. BRIEF DESCRIPTION OF DRAWINGS In order to more authoritatively verify the technical scheme of the application, the explanations of several key words are intercepted from the seventh edition of the modern Chinese dictionary. Fig. 1 is the explanation of steam, Fig. 2 is the explanation of steam, and Fig. 3 is the explanation of water vapor. BEST MODE FOR CARRYING OUT THE INVENTION The application has a wide range of applications, and the best mode of implementation should be adapted to local conditions. EMBODIMENTS OF THE INVENTION The application is simple in concept, only a pressure-bearing heated container needs to be made, and then connected with various different types of pressure-bearing heat exchange equipment. The pressure-bearing heated container needs to be provided with some threaded holes for the installation of various control devices: 1: Pressure gauge, negative pressure pressure gauge must be assembled, which is convenient for observing the pressure condition of the equipment in the non-working state. If the closed system is not tightly sealed, air will leak in, which will affect the heating effect of the pressure-bearing heat exchange equipment 2: Safety valve, to prevent the pressure in the closed system from rising sharply due to sudden conditions 3: Temperature gauge, to observe the temperature in the closed system at any time 4: Liquid level meter, to detect the liquid level in the pressure-bearing container at any time to prevent dry burning 5: Pressure transmitter, which is essential if the control method is pressure control. 6: Temperature transmitter, which is essential if the control method is temperature control. In addition, the pressure-bearing container should also be provided with gas outlets, the number of which is indefinite, and the function is to connect the pressure-bearing heat exchange equipment, so that the steam in the pressure-bearing container rises into the pressure-bearing heat exchange equipment, and the condensed liquid in the pressure-bearing heat exchange equipment sinks into the pressure-bearing container. The structure and shape of the pressure-bearing container can be designed according to the heating form. The pressure-bearing container is not limited by the heating form, which can be gas heating, oil heating, biomass heating or electric heating, and there are various forms, as long as the liquid in the pressure-bearing container can be heated, any heating form can be used. INDUSTRIAL UTILITY The heat supply temperature range is wide, the heat supply temperature is uniform, operation is safe, convenient, simple, efficient, stable and reliable. Small size can be achieved, and it is the best operation mode of distributed and modular heat supply. No steam heat pollution to the environment.

Claims

1. Gas sea heating method, derived from steam boiler heating, but not limited to the steam boiler heating method, its common technical features are: Both are gas-liquid circulation heating, which is to heat the liquid to vapor, and then release latent heat in the pressure exchange equipment, and then condense into liquid. The backward technology of traditional steam boiler heating is that the condensed water contains a lot of heat when the steam condenses into water, which is usually wasted.

2. The gas sea heating method has the unique technical feature that when the steam releases latent heat in the pressure exchange equipment and condenses into liquid, the condensed liquid is not discharged but flows downward by gravity into the pressure container for further heating and evaporation.

3. The gas sea heating method according to claim 2 has the specific feature that the pressure container and the pressure exchange equipment are connected to form a closed system, the pressure container is placed at the bottom, the pressure container is preloaded with liquid, and the inside of the closed system is processed into a vacuum state. There are two processing methods: "1: vacuum method, the air inside the closed system is extracted clean (suitable for liquids other than water); 2: pressurized exhaust method, install exhaust valves at key nodes in the entire closed system (the number and installation position of the exhaust valves are determined by the structure of the pressure exchange equipment), heat the liquid in the container to make the liquid evaporate, generate a large amount of steam, and increase the internal pressure of the closed system, then open the pre-installed exhaust valve to exhaust the air with the help of internal steam pressure (suitable for using water as preloaded liquid, because water vapor is non-toxic and harmless, water vapor can be allowed to overflow when the exhaust valve is opened)". After the above operations are completed, the inside of the closed system is in a vacuum state without air at room temperature, and the preloaded liquid in the pressure container is heated to evaporate a large amount of steam. Because the inside of the closed system is in a vacuum state, the generated steam will be evenly distributed in the entire internal space of the closed system. When the internal temperature of the closed system exceeds the external temperature, the steam in the closed system contacts the inner wall of the closed system and continuously releases latent heat, condenses into liquid, and flows spontaneously to the lower part under the action of gravity, and finally reenters the pressure container for further heating and evaporation.

4. The method of claim 3, wherein the air sea heating method is characterized by: The gas sea heating method is not limited by the structure and shape of the pressure exchange equipment, as long as the pressure exchange equipment can withstand pressure and can be connected to the pressure container to form a closed system.

5. The method of claim 3, wherein the air sea heating method is characterized by: The pressure container is not limited by the heating form, which can be gas heating, oil heating, biomass heating, or electric heating, as long as the liquid in the pressure container can be heated.

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