Novel tubular steam generator

Abstract

The utility model discloses a novel tubular steam generator, which relates to the technical field of steam generators and comprises a boiler body, a condenser and a water supply pump, and the condenser is positioned on the left side of the boiler body. The circulating water pump is arranged, soft water is pumped into the condenser, water in the condenser is preheated and deoxygenized through hot smoke and then enters the boiler body, the boiler body is heated through the combustor, and after air and natural gas are fully mixed through the combustor, combustion is more sufficient; the problems that most existing through-flow type gas steam generators have unsafe factors such as steam saturation and furnace body overheating phenomena, in addition, most condensers installed in equipment are pressure-bearing components, the pressure-bearing requirements of the condensers are high, and certain potential safety hazards exist are solved, and the purposes that the condensers are adopted as normal-pressure components, the potential safety hazards are reduced, and the service life of the condensers is prolonged are achieved. A special separating device is adopted inside, the steam saturation reaches up to 98% or above, and the phenomenon that a furnace body is overheated is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of steam generators, in particular to a novel cross-flow steam generator. Background Art

[0002] In recent years, with the development of science and technology, steam generator technology has undergone many changes. The types of steam generators are gradually increasing. Steam generators are widely used in various fields of industry, such as electronics, machinery, chemicals, food, clothing and other fields. The steam generator industry plays an important role in the development of the national economy. As the call for low-carbon and environmental protection becomes louder and louder, people are paying more and more attention to the carbon emissions generated by their own social activities. The economic model based on low energy consumption, low pollution and low emissions is another major progress of human society after agricultural civilization and industrial civilization. Therefore, the concept of "low carbon", "low carbon" life, "low carbon" products and services have been produced in various fields.

[0003] Steam generator technology is widely used in modern industry and plays an important role in the national economy. Since the reform and opening up, with the rapid development of machinery, electronics, information, aerospace, energy and defense industries, my country's steam generator technology has also achieved remarkable achievements.

[0004] The steam generator industry is a labor-intensive, capital-intensive, and technology-intensive industry. The economies of scale are obvious, the capital investment is huge, and the franchise model is adopted. Therefore, the industry entry barriers are very high. After so many years of development, China's steam generator industry has indeed made great progress. At the same time, steam generator companies are also facing various challenges. Steam generator companies must adhere to the market-oriented strategy, rely closely on scientific and technological progress and technological innovation, adjust the enterprise structure and product structure under the guidance of national energy and environmental protection policies, and produce and sell steam generators that meet market demand, so as to occupy a place in the fierce market competition. The steam generator industry is an industry with development potential under the background of the prevalence of environmental awareness, with a huge market and broad prospects.

[0005] However, most of the cross-flow gas steam generators on the current market have a water supply volume of less than 30 liters, which have unsafe factors such as steam saturation and furnace overheating. In addition, the condensers installed in the equipment are mostly pressure-bearing components, which have high pressure requirements and pose certain safety hazards. Utility Model Content

[0006] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a new type of cross-flow steam generator, which adopts the condenser as a normal pressure component to reduce safety hazards. A special separation device is used inside, and the steam saturation is as high as 98% or more. A layer of smoke barrier plate is added to the periphery of the furnace body finned tube, so that the smoke can be evenly discharged after sufficient heat exchange in the furnace body, thereby improving the boiler efficiency and greatly reducing the phenomenon of furnace overheating, and the water volume, that is, the geometric volume, is less than 50 liters.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of cross-flow steam generator, comprising a boiler body, a condenser and a feed water pump, wherein the condenser is located on the left side of the boiler body, the feed water pump is located at the bottom of the condenser, the bottom of the condenser is connected to a circulating water pump through a pipeline, the other end of the circulating water pump is connected to the right side of the bottom of the condenser through a pipeline, the bottom of the boiler body is connected to a burner, and the boiler body is connected to a liquid level meter through a pipeline.

[0008] As a preferred embodiment of the present invention, the top of the boiler body is connected to an upper header, the bottom of the boiler body is connected to a lower header, and the feed water pump is connected to the lower header through a pipeline.

[0009] As a preferred embodiment of the utility model, the top of the upper header is connected to a safety valve through a pipeline, the top of the liquid level gauge is connected to a pressure control device through a pipeline, and the pressure control device is connected to the top of the boiler body through a pipeline.

[0010] As a preferred embodiment of the utility model, a water vapor separation plate is fixedly connected to the interior of the upper header, and a spiral plate is fixedly connected to the interior of the upper header, and the spiral plate is located on the top of the water vapor separation plate.

[0011] As a preferred embodiment of the present invention, the left side of the boiler body is connected with a flue, and the left side of the flue is connected with the right side of the condenser.

[0012] As a preferred embodiment of the utility model, a smoke blocking plate is installed inside the boiler body, one side of the upper header is connected to a downcomer, and the other end of the downcomer is connected to one side of the lower header.

[0013] As a preferred embodiment of the present invention, fin tubes are installed inside the boiler body.

[0014] As a preferred embodiment of the utility model, the bottom of the boiler body is fixedly connected to a base, the circulating water pump is installed on the top of the base, the feed water pump is installed on the top of the base, the condenser is installed on the top of the base, lower flame retardant mud is installed on the inner side of the lower header, and upper flame retardant mud is installed on the top of the upper header.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model provides a circulating water pump to send soft water into the condenser. The water in the condenser is preheated and deoxygenated by hot smoke and then enters the boiler body. The boiler body is heated by the burner. The burner fully mixes air and natural gas to make its combustion more complete. This solves the problem that most of the cross-flow gas steam generators on the existing market have unsafe factors such as steam saturation and furnace overheating. In addition, most of the condensers installed in the equipment are pressure-bearing components, and the pressure requirements are high, which has certain safety hazards. The condenser is used as a normal pressure component to reduce safety hazards. A special separation device is used inside, and the steam saturation is as high as 98%. A layer of smoke blocking plate is added to the periphery of the furnace finned tube, so that the smoke is evenly discharged after sufficient heat exchange in the furnace body, the boiler efficiency is improved, and the effect of furnace overheating is greatly reduced.

[0017] 2. The utility model sets an upper header and a lower header. The upper header is mainly used for water vapor separation and can effectively collect condensed water droplets. The lower header can evenly replenish water in the fin tube when the fin tube needs to be replenished with water, so that the water in the fin tube can rise evenly.

[0018] 3. The utility model is provided with a safety valve and a pressure control device. The safety valve plays a safety protection role during use. When the pressure exceeds the specified value, the safety valve opens to discharge a part of the gas or fluid into the atmosphere or outside the pipeline, so that the pressure does not exceed the allowable value, thereby ensuring that no accidents occur due to excessive pressure. The pressure control device can be used for overpressure alarm, over-high pressure shutdown protection, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the boiler body of the utility model;

[0021] Figure 3 The utility model is a schematic diagram of a sectional structure of a boiler body.

[0022] In the figure: 1. Boiler body; 2. Condenser; 3. Feed water pump; 4. Circulating water pump; 5. Burner; 6. Liquid level gauge; 7. Safety valve; 8. Pressure control device; 9. Base; 1-1. Upper header; 1-2. Lower header; 1-4. Flue; 1-1-1. Water vapor separation plate; 1-1-2. Spiral plate; 1-5. Smoke barrier plate; 1-6. Downcomer; 1-7. Finned tube; 1-8. Lower flame retardant mud; 1-9. Upper flame retardant mud. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figures 1 to 3 As shown, the utility model provides a new type of cross-flow steam generator, including a boiler body 1, a condenser 2 and a feed water pump 3, the condenser 2 is located on the left side of the boiler body 1, the feed water pump 3 is located at the bottom of the condenser 2, the bottom of the condenser 2 is connected to a circulating water pump 4 through a pipeline, the other end of the circulating water pump 4 is connected to the right side of the bottom of the condenser 2 through a pipeline, the bottom of the boiler body 1 is connected to a burner 5, and the boiler body 1 is connected to a liquid level meter 6 through a pipeline.

[0025] refer to Figure 2 The top of the boiler body 1 is connected to an upper header 1-1, the bottom of the boiler body 1 is connected to a lower header 1-2, and the feed water pump 3 is connected to the lower header 1-2 through a pipeline.

[0026] As a technical optimization scheme of the utility model, by setting the upper header 1-1 and the lower header 1-2, the upper header 1-1 is mainly used for water vapor separation, which can effectively collect condensed water droplets, and the lower header 1-2 can evenly replenish water in the fin tube 1-7 when the fin tube 1-7 needs to be replenished with water, so that the water in the fin tube 1-7 can rise evenly.

[0027] refer to Figure 1 The top of the upper header 1-1 is connected to a safety valve 7 through a pipeline, the top of the liquid level gauge 6 is connected to a pressure control device 8 through a pipeline, and the pressure control device 8 is connected to the top of the boiler body 1 through a pipeline.

[0028] As a technical optimization scheme of the utility model, by setting the safety valve 7 and the pressure control device 8, the safety valve 7 plays a safety protection role in use. When the pressure exceeds the specified value, the safety valve 7 opens to discharge part of the gas or fluid into the atmosphere or outside the pipeline, so that the pressure does not exceed the allowable value, thereby ensuring that no accidents occur due to excessive pressure. The pressure control device 8 can be used for overpressure alarm, over-pressure shutdown protection, etc.

[0029] refer to Figure 3 A water vapor separation plate 1-1-1 is fixedly connected to the interior of the upper header 1-1, and a spiral plate 1-1-2 is fixedly connected to the interior of the upper header 1-1. The spiral plate 1-1-2 is located on the top of the water vapor separation plate 1-1-1.

[0030] As a technical optimization scheme of the utility model, by setting the water vapor separation plate 1-1-1 and the spiral plate 1-1-2, the water vapor separation plate 1-1-1 and the spiral plate 1-1-2 can make the water vapor separation effect better, increase the water vapor travel in the collecting box, make the water vapor saturation drier, and the steam saturation better.

[0031] refer to Figure 2 The left side of the boiler body 1 is connected to the flue 1-4, and the left side of the flue 1-4 is connected to the right side of the condenser 2.

[0032] As a technical optimization scheme of the utility model, by setting up flues 1-4, smoke can be circulated or discharged, and the flues 1-4 are connected with the condenser 2, so that the smoke can be transported to the inside of the condenser 2, making it convenient for the condenser 2 to preheat the water passing through.

[0033] refer to Figure 2 A smoke blocking plate 1-5 is installed inside the boiler body 1, one side of the upper header 1-1 is connected to a downcomer 1-6, and the other end of the downcomer 1-6 is connected to one side of the lower header 1-2.

[0034] As a technical optimization scheme of the utility model, by arranging the smoke baffle plate 1-5 and the downcomer 1-6, the smoke baffle plate 1-5 can prevent the smoke from dissipating too quickly, so that the smoke is fully discharged after heat exchange in the furnace, thereby increasing the thermal efficiency of the boiler. The structure is made by open mold to ensure that the smoke dissipation holes are uniform, so that the smoke is evenly distributed. The downcomer 1-6 is connected with the upper header 1-1 and the lower header 1-2, so that the moisture separated by the upper header 1-1 can flow back to the lower header 1-2 for evaporation. The downcomer 1-6 passes through the upper header 1-1 and the lower header 1-2, so that the pressure of the boiler body 1 is balanced.

[0035] refer to Figure 2 Fin tubes 1-7 are installed inside the boiler body 1.

[0036] As a technical optimization scheme of the utility model, finned tubes 1-7 are provided, and finned tubes 1-7 adopt spiral finned tubes to increase the heat exchange area of ​​the boiler tube bundle, so that the water in the water tube can better absorb heat for evaporation. In addition, the finned tubes 1-7 are arranged in two circles, inner and outer, so that the combustion flue gas can undergo two-stage heat exchange, which greatly improves the heat exchange efficiency of the boiler and avoids overheating of the furnace body due to insufficient heat exchange efficiency.

[0037] refer to Figure 1 The bottom of the boiler body 1 is fixedly connected to a base 9, a circulating water pump 4 is installed on the top of the base 9, a feed water pump 3 is installed on the top of the base 9, a condenser 2 is installed on the top of the base 9, a lower flame retardant mud 1-8 is installed on the inner side of the lower header 1-2, and an upper flame retardant mud 1-9 is installed on the top of the upper header 1-1.

[0038] As a technical optimization scheme of the utility model, by setting a base 9, lower flame retardant mud 1-8 and upper flame retardant mud 1-9, it is convenient for the user to place the furnace body on the base 9 to support the boiler body 1, circulating water pump 4, feed water pump 3 and condenser 2. The lower flame retardant mud 1-8 prevents the lower header 1-2 from being heated, and the heat is transferred to the bottom, causing hidden dangers to the burner 5. The upper flame retardant mud 1-9 prevents the upper header 1-1 from being heated and generating stress.

[0039] The working principle and use process of the utility model are as follows: when in use, the circulating water pump 4 can be started to make the circulating water pump 4 pump soft water into the condenser 2. The water in the condenser 2 is preheated and deoxygenated by hot smoke and then enters the furnace body. The furnace body is heated by the burner 5. The burner 5 fully mixes the air and natural gas to make its combustion more complete. At the same time, it can also be used to transport the premixed gas of air and natural gas to make them fully mixed in a certain proportion to reduce the emission of carbon monoxide and nitrogen oxides. The upper header 1-1 is mainly used for water vapor separation and can effectively collect condensed water droplets. When the fin tube 1-7 needs to be replenished with water, the lower header 1-2 can evenly replenish water in the fin tube 1-7 so that the water in the fin tube 1-7 can rise evenly. The safety valve 7 plays a safety protection role in use. When the pressure exceeds the specified value, the safety valve 7 opens to discharge a part of the gas or fluid into the atmosphere or outside the pipeline so that the pressure does not exceed the allowable value, thereby ensuring that no accidents occur due to excessive pressure. The pressure control device 8 can be used for overpressure alarm. Over-pressure shutdown protection, etc. The water vapor separation plate 1-1-1 and the spiral plate 1-1-2 can make the water vapor separation effect better, increase the water vapor in the header, make the water vapor saturation drier, and the steam saturation better. The smoke barrier 1-5 can prevent the smoke from escaping too quickly, so that the smoke is fully heat exchanged in the furnace before being discharged, increasing the thermal efficiency of the boiler. This structure is made by open mold to ensure that the smoke holes are uniform, so that the smoke is evenly distributed. The downcomer 1-6 is connected with the upper header 1-1 and the lower header 1-2, so that the upper The water separated by the header 1-1 can flow back to the lower header 1-2 for evaporation. The downcomer 1-6 runs through the upper header 1-1 and the lower header 1-2, so that the pressure of the boiler body 1 is balanced. The finned tubes 1-7 use spiral finned tubes to increase the heat exchange area of ​​the boiler tube bundle, so that the water in the water tube can better absorb heat for evaporation. In addition, the finned tubes 1-7 are arranged in two circles inside and outside, so that the combustion flue gas can undergo two-stage heat exchange, which greatly improves the heat exchange efficiency of the boiler and avoids overheating of the furnace body due to insufficient heat exchange efficiency.

[0040] The condenser 2 is used as a normal pressure component to reduce safety hazards; a special separation device is used in the upper header 1-1, and the steam saturation is as high as over 98%; a layer of smoke blocking plate 1-5 is added to the periphery of the furnace body fin tube 1-7, so that the smoke is evenly discharged after sufficient heat exchange in the furnace body, the boiler efficiency is improved, and the effect of overheating of the furnace body is greatly reduced.

[0041] To sum up: this new type of cross-flow steam generator, by setting a circulating water pump 4, pumps soft water into the condenser 2, the water in the condenser 2 is preheated and deoxygenated by hot smoke and then enters the boiler body 1, and the boiler body 1 is heated by the burner 5. After the burner 5 fully mixes the air and natural gas, the combustion is more complete, which solves the problem of most cross-flow gas steam generators on the existing market. The cross-flow steam generators with a water volume of less than 30 liters have unsafe factors such as steam saturation and furnace overheating. In addition, the condensers installed in the equipment are mostly pressure-bearing components, and the pressure-bearing requirements are relatively high, which poses certain safety hazards.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel cross-flow steam generator, comprising a boiler body (1), a condenser (2) and a feed water pump (3), characterized in that: The condenser (2) is located on the left side of the boiler body (1), the feed water pump (3) is located at the bottom of the condenser (2), the bottom of the condenser (2) is connected to a circulating water pump (4) through a pipeline, the other end of the circulating water pump (4) is connected to the right side of the bottom of the condenser (2) through a pipeline, the bottom of the boiler body (1) is connected to a burner (5), and the boiler body (1) is connected to a liquid level meter (6) through a pipeline.

2. A novel cross-flow steam generator according to claim 1, characterized in that: The top of the boiler body (1) is connected to an upper header (1-1), the bottom of the boiler body (1) is connected to a lower header (1-2), and the feed water pump (3) is connected to the lower header (1-2) through a pipeline.

3. A novel cross-flow steam generator according to claim 2, characterized in that: The top of the upper header (1-1) is connected to a safety valve (7) via a pipeline, the top of the liquid level gauge (6) is connected to a pressure control device (8) via a pipeline, and the pressure control device (8) is connected to the top of the boiler body (1) via a pipeline.

4. A novel cross-flow steam generator according to claim 2, characterized in that: A water vapor separation plate (1-1-1) is fixedly connected inside the upper header (1-1), and a spiral plate (1-1-2) is fixedly connected inside the upper header (1-1), and the spiral plate (1-1-2) is located on the top of the water vapor separation plate (1-1-1).

5. A novel cross-flow steam generator according to claim 1, characterized in that: The left side of the boiler body (1) is connected to a flue (1-4), and the left side of the flue (1-4) is connected to the right side of the condenser (2).

6. A novel cross-flow steam generator according to claim 2, characterized in that: A smoke blocking plate (1-5) is installed inside the boiler body (1), one side of the upper header (1-1) is connected to a downcomer (1-6), and the other end of the downcomer (1-6) is connected to one side of the lower header (1-2).

7. A novel cross-flow steam generator according to claim 1, characterized in that: Fin tubes (1-7) are installed inside the boiler body (1).

8. A novel cross-flow steam generator according to claim 2, characterized in that: The bottom of the boiler body (1) is fixedly connected to a base (9), the circulating water pump (4) is installed on the top of the base (9), the feed water pump (3) is installed on the top of the base (9), the condenser (2) is installed on the top of the base (9), the lower flame retardant mud (1-8) is installed on the inner side of the lower header (1-2), and the upper flame retardant mud (1-9) is installed on the top of the upper header (1-1).

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