Quick-heating dry-burning boiler power generation device

Abstract

The invention provides a quick-heating dry-burning boiler power generation device, and relates to the technical field of boiler equipment and power production.The quick-heating dry-burning boiler comprises a boiler body, a burner and a preheating part, a hearth and a steam chamber are arranged in the boiler body, a plurality of superconducting pipes extending into the steam chamber from the hearth are arranged in the boiler body, spraying pipes are arranged above the superconducting pipes, and the spraying pipes are communicated with the boiler body. The boiler body is provided with a steam outlet, a coiled water pipe is arranged in the preheating part and communicated with the spraying pipe, an inlet of the coiled water pipe is connected with an external water pump, the preheating part is provided with a smoke inlet and a smoke outlet, and the smoke inlet is communicated with the hearth; the power generation device comprises a steam pipeline, a steam turbine generator unit, a cooling water tower, a water pump and a quick-heating dry-burning boiler, wherein the quick-heating dry-burning boiler is communicated with the steam turbine generator unit, the cooling water tower and the water pump through the steam pipeline. According to the embodiment of the invention, combustion heat and high temperature in the hearth are conducted through the superconducting pipe, so that the spray water directly generates high-temperature and high-pressure dry steam, the high-temperature and high-pressure dry steam pushes the steam turbine generator unit to work, and the thermal efficiency is high.

Description

Technical Field

[0001] This invention relates to boiler equipment technology and the field of power generation, and in particular to a rapid-heating dry-burning boiler power generation device. Background Technology

[0002] High-temperature, high-pressure dry steam has wide applications in power generation, petroleum, chemical, and industrial production. It can also serve as a power source for steam turbine generator sets.

[0003] Existing steam boilers use water within the boiler as heating coal, directly generating steam by absorbing combustion heat from the furnace and waste heat from the flue gas ducts. Because the boiler needs to hold a large amount of water as heating coal, on the one hand, high energy consumption is required to heat such a large volume of water to generate steam; on the other hand, the generated steam has high humidity, which cannot meet application requirements. Summary of the Invention

[0004] To address the aforementioned problems, this invention proposes a rapid-heating dry-burning boiler power generation device, which transmits combustion heat and high temperature within the furnace through a superconducting pipe, and directly generates high-temperature, high-pressure dry steam by spraying water onto it, resulting in high thermal efficiency.

[0005] Specifically, according to the first aspect, the present invention proposes a rapid-heating dry-burning boiler, including a furnace body, a burner, and a preheating section. The furnace body is provided with a furnace chamber and a steam chamber. The furnace body is provided with a plurality of superconducting pipes extending from the furnace chamber to the steam chamber. A spray pipe is provided above the superconducting pipes. The furnace body is provided with a steam outlet. The preheating section is provided with a coiled water pipe, which is connected to the spray pipes. The inlet of the coiled water pipe is connected to an external water pump. The preheating section is provided with a flue gas inlet and a flue gas outlet, and the flue gas inlet is connected to the furnace chamber.

[0006] Optionally, the superconducting tube is a metal heat-conducting tube with a negative pressure region and a capillary structure.

[0007] Optionally, the superconducting tube is U-shaped, with the bottom of the U-shape located at the top of the furnace and the upper branch of the U-shape extending into the steam chamber.

[0008] Optionally, the spray pipe is provided with multiple spray heads.

[0009] Optionally, the spray pipe has multiple branch lines.

[0010] Optionally, a steam storage area is provided above the spray pipe.

[0011] Optionally, the furnace body is equipped with a pressure valve.

[0012] Optionally, the burner is fueled by natural gas.

[0013] According to a second aspect, the present invention provides a power generation device, comprising a steam pipeline, a steam turbine generator set, a cooling tower, a water pump, and a rapid-heating dry-burning boiler as described in the first aspect above, wherein the rapid-heating dry-burning boiler is connected to the steam turbine generator set, the cooling tower, and the water pump through the steam pipeline.

[0014] The beneficial effects of this invention are: In embodiments of the present invention, the combustion heat and high temperature in the furnace are conducted through superconducting pipes, so that the sprayed water directly generates high-temperature and high-pressure dry steam. The generated high-temperature and high-pressure dry steam drives the steam turbine generator set to work, resulting in high thermal efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the rapid-heating dry-burning boiler proposed in this invention; Figure 2 This is a schematic diagram of the side structure of the furnace body according to an embodiment of the present invention; Figure 3 This is a schematic diagram of an embodiment of the power generation device proposed in this invention.

[0016] Explanation of reference numerals in the attached figures: 100-Rapid heating dry-fired boiler, 110-Furnace body, 111-Furnace chamber, 112-Steam chamber, 1121-Spray pipe, 1122-Spray head, 1123-Steam storage area, 113-Superconducting pipe, 114-Steam outlet, 115-Pressure valve, 120-Burner, 130-Preheating section, 131-Coiled water pipe, 132-Flue gas inlet, 133-Flue gas outlet, 200-Steam pipeline, 300-Steam turbine generator set, 400-Cooling water tower, 500-Water pump. Detailed Implementation

[0017] To more clearly and completely illustrate the technical solution of the present invention, the present invention will be further described below with reference to the accompanying drawings.

[0018] The following specific examples illustrate the implementation of this disclosure. Those skilled in the art can easily understand other advantages and effects of this disclosure from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. This disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this disclosure. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure. Example

[0019] Please refer to Figures 1 to 2 This invention proposes an embodiment of a rapid-heating dry-burning boiler 100, including a furnace body 110, a burner 120, and a preheating section 130. The furnace body 110 is provided with a furnace chamber 111 and a steam chamber 112. The burner 120 is used to burn fuel inside the furnace chamber 111 to generate high temperature. The furnace body 110 is provided with a plurality of superconducting pipes 113 extending from the furnace chamber 111 to the steam chamber 112. The superconducting pipes 113 are used to transfer the combustion heat of the furnace chamber 111 to the steam chamber 112. A spray pipe 1121 is provided above the superconducting pipes 113. The furnace body 110 is provided with a steam outlet 114. The preheating section 130 is provided with a coiled water pipe 131, which is connected to the spray pipe 1121. The inlet of the coiled water pipe 131 is connected to an external water pump. The preheating section 130 is provided with a flue gas inlet 132 and a flue gas outlet 133. The flue gas inlet 132 is connected to the furnace chamber 111.

[0020] The working principle of this invention is as follows: Fuel burns inside furnace 111, generating high temperatures. These high temperatures are transferred to steam chamber 112 via superconducting pipe 113 at an extremely high rate and with minimal loss. The flue gas generated inside furnace 111 enters preheating section 130 through flue gas inlet 132 and is discharged through exhaust port 133. Water is pumped from an external pump into coiled water pipe 131. The water in coiled water pipe 131 is heated by the residual heat of the fuel flue gas and then sprayed through spray pipe 1121 onto the end surface of superconducting pipe 113 within steam chamber 112. Because superconducting pipe 113 transfers the high temperature of combustion from furnace 111 to steam chamber 112, its end surface is hot; water spraying onto it directly generates high-temperature, high-pressure dry steam. Furthermore, the water spray cools the end of superconducting pipe 113 within steam chamber 112, creating a temperature difference with its portion inside furnace 111. This allows superconducting pipe 113 to continuously conduct heat and prevents damage. Steam outlet 114 is used to discharge steam.

[0021] The embodiments of the present invention can utilize combustion heat energy to generate high-temperature and high-pressure dry steam, which has high thermal efficiency.

[0022] In some embodiments, the superconducting tube 113 is a metal heat-conducting tube with a negative pressure region and a capillary structure. Its typical structure and principle are disclosed in Chinese patent application CN201310323881.6.

[0023] In some embodiments, the superconducting tube 113 is U-shaped, with the bottom of the U-shape of the superconducting tube 113 located at the top of the furnace 111, and the upper branch of the U-shape of the superconducting tube 113 extending into the steam chamber 112.

[0024] In some embodiments, the spray pipe 1121 is provided with a plurality of nozzles 1122.

[0025] In some embodiments, the spray pipe 1121 has multiple branch pipes.

[0026] In some embodiments, a steam storage area 1123 is provided above the spray pipe 1121, where the high-temperature and high-pressure dry steam generated by spraying is focused and stored.

[0027] In some embodiments, the furnace body 110 is provided with a pressure valve 115 for controlling the pressure inside the furnace body 110, for example, opening the valve to release pressure when the pressure exceeds a certain limit.

[0028] In some embodiments, the burner 120 is fueled by natural gas.

[0029] In some embodiments, the waste heat of the flue gas discharged from the exhaust port 133 can be further utilized, for example, by preheating the air blown into the burner 120 through a heat exchange device. Example

[0030] Please refer to Figure 3 The present invention proposes an embodiment of a power generation device, including a steam pipeline 200, a steam turbine generator set 300, a cooling tower 400, a water pump 500, and a rapid-heating dry-burning boiler 100 as in Embodiment 1. The rapid-heating dry-burning boiler 100 is connected to the steam turbine generator set 300, the cooling tower 400, and the water pump 500 through the steam pipeline 200. The rapid-heating dry-burning boiler 100 provides high-temperature and high-pressure dry steam for the operation of the steam turbine generator set 300.

[0031] In some embodiments, high-temperature, high-pressure dry steam from other sources can also be introduced into the steam turbine generator set 300 via steam line 200.

[0032] In the description of this invention, it should be understood that the terms "middle," "length," "upper," "lower," "front," "rear," "vertical," "horizontal," "inner," "outer," "radial," "circumferential," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0033] In this invention, unless otherwise expressly specified and limited, the first feature "on" the second feature may be in direct contact with the first and second features, or indirect contact with the first and second features through an intermediate medium. "A plurality of" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

[0034] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] The above description is merely illustrative of the embodiments of the present invention and is not intended to limit the present invention. For those skilled in the art, any modifications, equivalent substitutions, improvements, etc., made without creative effort within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rapid-heating dry-burning boiler, characterized in that, The furnace includes a furnace body, a burner, and a preheating section. The furnace body has a furnace chamber and a steam chamber inside. The furnace body has multiple superconducting pipes extending from the furnace chamber to the steam chamber. A spray pipe is provided above the superconducting pipes. The furnace body has a steam outlet. The preheating section has a coiled water pipe inside. The coiled water pipe is connected to the spray pipe. The inlet of the coiled water pipe is connected to an external water pump. The preheating section has a flue gas inlet and a flue gas outlet. The flue gas inlet is connected to the furnace chamber.

2. The rapid-heating dry-burning boiler as described in claim 1, characterized in that, The superconducting tube is a metal heat-conducting tube with a negative pressure region and a capillary structure.

3. The rapid-heating dry-burning boiler as described in claim 1, characterized in that, The superconducting tube is U-shaped, with the bottom of the U-shape located at the top of the furnace and the upper branch of the U-shape extending into the steam chamber.

4. A rapid-heating dry-burning boiler as described in claim 1, characterized in that, The spray pipe is equipped with multiple nozzles.

5. A rapid-heating dry-burning boiler as described in claim 1, characterized in that, The spray pipe has multiple branch pipes.

6. A rapid-heating dry-burning boiler as described in claim 1, characterized in that, A steam storage area is provided above the spray pipe.

7. A rapid-heating dry-burning boiler as described in claim 1, characterized in that, The furnace body is equipped with a pressure valve.

8. A rapid-heating dry-burning boiler as described in claim 1, characterized in that, The burner is fueled by natural gas.

9. A power generation device, characterized in that, It includes a steam pipeline, a steam turbine generator set, a cooling tower, a water pump, and a rapid-heating dry-burning boiler as described in any one of claims 1 to 8, wherein the rapid-heating dry-burning boiler is connected to the steam turbine generator set, the cooling tower, and the water pump through the steam pipeline.

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