Steam generator

Abstract

The utility model relates to the technical field of steam generators, and discloses a steam generator. The hearth is of a cylindrical structure with a sealed upper end; the heating sleeve is arranged on the outer side edge of the hearth in a sleeving mode, the bottom of the heating sleeve and the bottom of the hearth are connected in a sealed mode, and the upper portion between the heating sleeve and the hearth is of an opening structure; the steam chamber covers the upper part of the heating sleeve, the steam chamber is arranged at the upper part of the hearth, and a steam outlet is formed in the upper part of the steam chamber; the outer furnace body is arranged outside the heating sleeve in a covering mode, a smoke bin is formed between the outer furnace body and the heating sleeve, and a communicating smoke pipe is arranged on the upper side edge of the hearth and the upper side edge of the heating sleeve in a penetrating mode; the boiler has the advantages that the contact area of water and the hearth is increased due to the design between the hearth and the heating sleeve, heat exchange efficiency is improved, and boiling evaporation of water is accelerated. And due to the design of the smoke bin, smoke can conduct secondary heating on water in the heating sleeve, the temperature of the smoke is reduced, and meanwhile water in the preheating bin is preheated.

Description

Technical Field

[0001] The present application relates to the technical field of steam generators, for example, to a steam generator. Background Art

[0002] Currently, a steam generator, often also referred to as a boiler, is a device that converts the chemical energy or electrical energy of fuel into heat energy and then generates steam. Steam generators are widely used in multiple fields such as power production, industrial processing, heating, and ship power. By burning fuel in the furnace, the furnace can be heated, and the water can be heated through the furnace to generate steam.

[0003] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0004] In a traditional steam generator, when heating water, the water is concentrated in the upper part of the furnace for heating, and the heat on the side wall of the furnace cannot be absorbed by heat exchange. The hot gas will radiate to the outside through the furnace wall, resulting in waste of energy. Moreover, flue gas is generated in the furnace where fuel is burned, and the high temperature in the flue gas will also be discharged along with the flue gas, reducing the energy utilization rate of heat generated by the furnace. Summary of the Utility Model

[0005] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. The summary is not a general review, nor is it intended to identify key / important constituent elements or delineate the protection scope of these embodiments, but rather serves as a preface to the subsequent detailed description.

[0006] The embodiments of the present disclosure provide a steam generator to solve the problem that the waste heat of flue gas in a traditional steam generator is easily wasted.

[0007] In some embodiments, the steam generator includes: a furnace, which is a cylindrical structure sealed at the upper end; a heating sleeve, sleeved on the outer side of the furnace, and the bottom of the heating sleeve is hermetically connected to the bottom of the furnace, and the upper part between the heating sleeve and the furnace is an open structure; a steam chamber, covering the upper part of the heating sleeve, and the steam chamber is arranged above the furnace, and a steam outlet is provided at the upper part of the steam chamber; an outer furnace body, covering the outside of the heating sleeve, a flue gas chamber is formed between the outer furnace body and the heating sleeve, and a connecting flue pipe is provided through the upper side of the furnace and the heating sleeve; a preheating chamber, arranged on one side of the outer furnace body, and the preheating chamber is communicated with the inside of the outer furnace body.

[0008] In some embodiments, a gas guiding plate is provided in the flue gas chamber, the upper part of the gas guiding plate is connected to the top of the flue gas chamber, the gas guiding plate extends to the lower part of the flue gas chamber, and a smoke inlet is opened at the upper part of the outer furnace body between the flue gas chamber and the preheating chamber.

[0009] In some embodiments, a heating water tank is provided in the preheating chamber. The heating water tank is disposed in the middle of the preheating chamber. A heating smoke pipe penetrates through the heating water tank. The upper side wall of the preheating chamber is communicated with the upper side wall of the flue gas chamber. A smoke exhaust pipe is provided on the lower side wall of the preheating chamber. The heating water tank is communicated with the heating sleeve through a hot water pipe. A water inlet pipe is connected to the heating water tank.

[0010] In some embodiments, a grate is provided inside the furnace chamber. A feeding port is provided on the side wall of the furnace chamber. The feeding port is disposed above the grate. The feeding port passes through the outer furnace body, the heating sleeve and the furnace chamber respectively.

[0011] In some embodiments, an ash cleaning port is provided below the feeding port. The ash cleaning port is disposed below the grate. The ash cleaning port passes through the outer furnace body, the heating sleeve and the furnace chamber respectively.

[0012] In some embodiments, a water level gauge is connected to the heating sleeve. The other end of the water level gauge is connected to the side wall of the steam chamber.

[0013] In some embodiments, a plurality of heat dissipation fins are arranged in parallel on the outer side wall of the furnace chamber.

[0014] In some embodiments, a stirring rod is arranged between the heat dissipation fins. The stirring rod is rotatably arranged between the heat dissipation fins. The stirring rod is in a spiral plate-like structure.

[0015] In some embodiments, an ash cleaning rod is arranged in the heating smoke pipe. The upper end of the ash cleaning rod slides through the upper part of the preheating chamber. An ash cleaning plate is provided at the lower end of the ash cleaning rod.

[0016] In some embodiments, a bolt is provided on the upper part of the ash cleaning rod. A threaded sleeve is provided on the upper part of the preheating chamber. The bolt is threadedly connected to the threaded sleeve.

[0017] The steam generator provided by the embodiments of the present disclosure can achieve the following technical effects:

[0018] The design between the furnace chamber and the heating sleeve increases the contact area between water and the furnace chamber, improves the heat exchange efficiency, and speeds up the boiling and evaporation of water. The design of the flue gas chamber enables the flue gas to perform secondary heating on the water in the heating sleeve, reduces the temperature of the flue gas, and simultaneously preheats the water in the preheating chamber. Through the design of the air guiding plate and the smoke inlet, the flue gas is effectively guided and discharged, reducing heat loss and improving the utilization rate of fuel.

[0019] The above general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation, and wherein:

[0021] Figure 1 is a schematic structural diagram of a steam generator provided by an embodiment of the present disclosure;

[0022] Figure 2 is a schematic structural diagram of the back of the steam generator provided by an embodiment of the present disclosure;

[0023] Figure 3 is a schematic structural diagram of the interior of the preheating chamber of the steam generator provided by an embodiment of the present disclosure;

[0024] Figure 4 is a schematic structural diagram of the heating sleeve and the steam chamber of the steam generator provided by an embodiment of the present disclosure;

[0025] Figure 5 is a schematic top view structural diagram of the heat sink of the steam generator provided by an embodiment of the present disclosure;

[0026] Figure 6 is a schematic structural diagram of the heat sink stirring rod provided by an embodiment of the present disclosure;

[0027] Figure 7 is a schematic sectional structural diagram of the preheating chamber and the outer furnace body provided by an embodiment of the present disclosure;

[0028] Figure 8 is a schematic sectional structural diagram of the outer furnace body and the water level gauge provided by an embodiment of the present disclosure.

[0029] Reference numerals:

[0030] 100, furnace; 200, heating sleeve; 300, steam chamber; 301, steam outlet; 400, outer furnace body; 401, flue gas chamber; 402, connecting flue; 403, air guiding plate; 404, smoke inlet; 500, preheating chamber; 501, heating water chamber; 502, heating flue; 503, exhaust pipe; 504, hot water pipe; 505, water inlet pipe; 101, grate; 102, feeding port; 103, ash cleaning port; 201, water level gauge; 104, heat sink; 105, stirring rod; 506, ash cleaning rod; 507, ash cleaning pan; 508, bolt; 509, threaded sleeve. Detailed implementation manners

[0031] In order to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The attached drawings are only for reference and explanation, and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, many details are provided to give a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices may be shown in a simplified manner to simplify the drawings.

[0032] In the description of the embodiments of the present disclosure, the terms "first", "second", etc. in the specification, claims and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0033] In the embodiments of the present disclosure, the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their implementations, and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation. And, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0034] In addition, the terms "arranged", "connected", "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0035] Unless otherwise specified, the term "plurality" means two or more.

[0036] In the embodiments of the present disclosure, the character " / " indicates that the objects before and after are in an "or" relationship. For example, A / B means: A or B.

[0037] The term "and / or" is a description of the associated relationship of an object, indicating that there can be three relationships. For example, A and / or B means: A or B, or, A and B these three relationships.

[0038] It should be noted that, without conflict, the embodiments in the present disclosure and the features in the embodiments may be combined with each other.

[0039] Combined with Figure 1-8 As shown, the embodiments of the present disclosure provide a steam generator, including: a furnace 100, which is a cylindrical structure sealed at the upper end; a heating sleeve 200, sleeved on the outer side of the furnace 100, and there is a sealed connection between the bottom of the heating sleeve 200 and the bottom of the furnace 100, and the upper part between the heating sleeve 200 and the furnace 100 is an open structure; a steam chamber 300, covering the upper part of the heating sleeve 200, and the steam chamber 300 is arranged above the furnace 100, and a steam outlet 301 is provided at the upper part of the steam chamber 300; an outer furnace body 400, covering the outside of the heating sleeve 200, a flue gas chamber 401 is formed between the outer furnace body 400 and the heating sleeve 200, and a communication flue pipe 402 is provided through the upper side of the furnace 100 and the heating sleeve 200; a preheating chamber 500, arranged on one side of the outer furnace body 400, and the preheating chamber 500 is in communication with the inside of the outer furnace body 400.

[0040] By using the steam generator provided by the embodiments of the present disclosure, fuel can be heated and burned in the furnace 100 to provide heat. The top of the furnace 100 is a sealed structure, and a heating sleeve 200 is sleeved around the side of the furnace 100. The bottom of the heating sleeve 200 is connected to the outer side wall of the furnace 100, and the inner side of the heating sleeve 200 and the upper outer part of the furnace 100 are of an open structure. The space between the heating sleeve 200 and the outside of the furnace 100 can accommodate the entry of water. The upper part of the heating sleeve 200 is covered with a steam chamber 300. Water can be stored in the space between the heating sleeve 200 and the outside of the furnace 100 and in the steam chamber 300. The water can fully contact the outer side wall and the upper wall of the furnace 100, increasing the contact area between the furnace 100 and the water, enhancing the heat exchange efficiency between the water and the furnace 100, accelerating the boiling and evaporation of the water, and absorbing and exchanging the heat generated by the furnace 100 as much as possible. An outer furnace body 400 is also sleeved outside the heating sleeve 200. The upper part of the outer furnace body 400 is hermetically connected to the bottom of the steam chamber 300. A flue gas chamber 401 is formed between the outer furnace body 400 and the heating sleeve 200. The flue gas chamber 401 can divert and discharge the flue gas in the furnace 100. A communication flue pipe 402 is provided on the upper side wall of the furnace 100. The communication flue pipe 402 can communicate the upper part of the furnace 100 with the flue gas chamber 401. In this way, the flue gas in the furnace 100 can enter the flue gas chamber 401 through the communication flue pipe. The flue gas in the flue gas chamber 401 can further heat the water in the heating sleeve 200, further reducing the temperature of the flue gas. The cooled flue gas can enter the preheating chamber 500 to preheat the water in the preheating chamber 500 and then be discharged from the preheating chamber 500.

[0041] Optionally, a gas guide plate 403 is provided in the flue gas chamber 401. The upper part of the gas guide plate 403 is connected to the top of the flue gas chamber 401, and the gas guide plate 403 extends to the lower part of the flue gas chamber 401. An inlet flue 404 is formed in the upper part of the outer furnace body 400 between the flue gas chamber 401 and the preheating chamber 500.

[0042] In this way, the flue gas chamber 401 and the preheating chamber 500 are communicated through the inlet flue 404. The inlet flue 404 is arranged in the upper part of the flue gas chamber 401 and the preheating chamber 500. The gas guide plate 403 is arranged at the top between the outer furnace body 400 and the heating sleeve 200. By arranging the gas guide plate 403 at the top of the flue gas chamber 401, the flue gas discharged from the communication flue can be guided downward, so as to heat the water in the heating sleeve 200. The flue gas flowing through the outer wall of the heating sleeve 200 flows downward through the gas guide plate 403, and then continues to flow upward into the gap between the outer furnace body 400 and the gas guide plate 403 through the guiding of the gas guide plate 403, and then can enter the preheating chamber 500 through the inlet flue 404 in the upper part of the outer furnace body 400, and the water in the preheating chamber 500 can be heated.

[0043] Optionally, a heating water tank 501 is arranged in the preheating chamber 500. The heating water tank 501 is arranged in the middle of the preheating chamber 500. A heating flue pipe 502 is arranged through the heating water tank 501. The upper side wall of the preheating chamber 500 is communicated with the upper side wall of the flue gas chamber 401, and a smoke exhaust pipe 503 is arranged on the lower side wall of the preheating chamber 500. The heating water tank 501 is communicated with the heating sleeve 200 through a hot water pipe 504, and a water inlet pipe 505 is connected to the heating water tank 501.

[0044] In this way, the heating water tank 501 is arranged in the middle of the preheating chamber 500. The preheating chamber 500 is divided into three vertically arranged cavities by the heating water tank 501. A through heating flue pipe 502 is arranged in the heating water tank 501. Both ends of the heating flue pipe 502 are communicated with the upper cavity and the lower cavity of the upper part of the preheating chamber 500 respectively. The smoke exhaust pipe 503 at the bottom of the preheating chamber 500 can discharge the flue gas. The flue gas in the outer furnace body 400 can enter the upper cavity of the preheating chamber 500 from the upper side of the preheating chamber 500, then enter the lower cavity of the preheating chamber 500 through the heating flue pipe 502 in the heating water tank 501, and then the flue gas can be discharged through the smoke exhaust pipe 503. The water in the heating water tank 501 can be preheated through the heating flue pipe 502. The heating water tank 501 and the heating sleeve 200 are communicated through a hot water pipe 504, and the preheated water in the heating water tank 501 can be conveyed into the heating sleeve 200, so as to increase the water temperature entering the heating sleeve 200. The heating water tank 501 can be supplied with water through the water inlet pipe 505.

[0045] Optionally, a grate 101 is provided inside the furnace chamber 100, and a charging port 102 is provided on the side wall of the furnace chamber 100. The charging port 102 is arranged above the grate 101, and the charging port 102 passes through the outer furnace body 400, the heating sleeve 200, and the furnace chamber 100 respectively.

[0046] In this way, the grate 101 in the furnace chamber 100 can support the fuel, increasing the contact area between the fuel and air in the furnace chamber 100. The charging port 102 on the side of the furnace chamber 100 can be used to add fuel. The charging port 102 passes through the outer furnace body 400 and the heating sleeve 200 respectively and is connected to the furnace chamber 100, and fuel can be added through the charging port 102.

[0047] Optionally, an ash cleaning port 103 is provided at the lower part of the charging port 102. The ash cleaning port 103 is arranged at the lower side of the furnace body, and the ash cleaning port 103 passes through the outer furnace body 400, the heating sleeve 200, and the furnace chamber 100 respectively.

[0048] In this way, the ash cleaning port 103 at the lower part of the charging port 102 can clean the furnace ash. The ash cleaning port 103 is arranged at the lower side of the furnace body, and the ash cleaning port 103 passes through the outer furnace body 400 and the heating sleeve 200 respectively and is connected to the furnace chamber 100, so that the furnace ash in the furnace chamber 100 can be conveniently cleaned.

[0049] Optionally, a water level gauge 201 is connected to the heating sleeve 200, and the other end of the water level gauge 201 is connected to the side wall of the steam chamber 300.

[0050] In this way, the water level gauge 201 can observe the water level heights in the heating sleeve 200 and the steam chamber 300, so that the water inlet of the steam chamber 300 can be controlled.

[0051] Optionally, a plurality of heat dissipation fins 104 are arranged side by side on the outer side wall of the furnace chamber 100.

[0052] In this way, the heat dissipation fins 104 on the side wall of the furnace chamber 100 can increase the contact area between the furnace chamber 100 and water, thereby increasing the heat exchange efficiency between the furnace chamber 100 and water.

[0053] Optionally, a stirring rod 105 is arranged between the heat dissipation fins 104. The stirring rod 105 is rotatably arranged between the heat dissipation fins 104, and the stirring rod 105 is of a spiral plate structure.

[0054] In this way, the stirring rod 105 between the heat dissipation fins 104 is of a spiral plate structure. When water boils, bubbles will be generated, and the boiling bubbles can push the stirring rod 105 to rotate. The rotation of the stirring rod 105 can accelerate the fluidity of water, and the rotation of the clamping plate rod can reduce the accumulation of water scale.

[0055] Optionally, a dust cleaning rod 506 is disposed inside the heating smoke pipe 502. The upper end of the dust cleaning rod 506 slidably passes through the upper part of the preheating chamber 500, and a dust cleaning plate 507 is provided at the lower end of the dust cleaning rod 506.

[0056] In this way, the temperature of the flue gas passing through the heating smoke pipe 502 is relatively low. The dust cleaning rod 506 inside the heating smoke pipe 502 can clean the soot inside the heating smoke pipe 502. The upper part of the dust cleaning rod 506 extends out of the preheating chamber 500. The dust cleaning rod 506 can slide up and down inside the heating smoke pipe 502, and the dust cleaning plate 507 can be driven to move up and down through the heating smoke pipe 502, so that the soot in the heating smoke pipe 502 can be scraped off. The diameter of the dust cleaning plate 507 is smaller than the inner diameter of the heating smoke pipe 502.

[0057] Optionally, a bolt 508 is provided at the upper part of the dust cleaning rod 506, and a threaded sleeve 509 is provided at the upper part of the preheating chamber 500. The bolt 508 is threadedly connected to the threaded sleeve 509.

[0058] In this way, the bolt 508 is provided at the upper part of the dust cleaning rod 506, and the threaded sleeve 509 is provided at the top of the preheating chamber 500. The dust cleaning rod 506 can be inserted into the threaded sleeve 509 and slide. The threaded sleeve 509 can be threadedly connected to the bolt 508, and the preheating chamber 500 can be sealed by the bolt 508 and the threaded sleeve 509.

[0059] The above description and the drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural and other changes. The embodiments only represent possible variations. Unless explicitly required, the individual components and functions are optional, and the order of operations can vary. Some parts and features of some embodiments can be included in or replaced by parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A steam generator, characterized in that, Comprising: A furnace chamber (100), which is a cylindrical structure sealed at the upper end; A heating sleeve (200), sleeved on the outer side of the furnace chamber (100), and there is a sealed connection between the bottom of the heating sleeve (200) and the bottom of the furnace chamber (100), and the upper part between the heating sleeve (200) and the furnace chamber (100) is an open structure; A steam chamber (300), covering the upper part of the heating sleeve (200), and the steam chamber (300) is arranged above the furnace chamber (100), and a steam outlet (301) is provided on the upper part of the steam chamber (300); An outer furnace body (400), covering the outside of the heating sleeve (200), a flue gas chamber (401) is formed between the outer furnace body (400) and the heating sleeve (200), and a connecting flue pipe (402) is provided through the upper side of the furnace chamber (100) and the heating sleeve (200); A preheating chamber (500), arranged on one side of the outer furnace body (400), and the preheating chamber (500) is internally connected to the outer furnace body (400).

2. The steam generator according to claim 1, characterized in that, A gas guiding plate (403) is provided in the flue gas chamber (401), the upper part of the gas guiding plate (403) is connected to the top of the flue gas chamber (401), the gas guiding plate (403) extends to the lower part of the flue gas chamber (401), and a smoke inlet (404) is opened in the upper part of the outer furnace body (400) between the flue gas chamber (401) and the preheating chamber (500).

3. The steam generator according to claim 1, characterized in that, A heating water tank (501) is arranged in the preheating chamber (500), the heating water tank (501) is arranged in the middle of the preheating chamber (500), a heating flue pipe (502) is provided through the heating water tank (501), the upper side wall of the preheating chamber (500) is connected to the upper side wall of the flue gas chamber (401), and a smoke exhaust pipe (503) is provided on the lower side wall of the preheating chamber (500), and the heating water tank (501) is connected to the heating sleeve (200) through a hot water pipe (504), and a water inlet pipe (505) is connected to the heating water tank (501).

4. The steam generator according to claim 1, characterized in that, A grate (101) is arranged inside the furnace chamber (100), a feeding port (102) is provided on the side wall of the furnace chamber (100), the feeding port (102) is arranged above the grate (101), and the feeding port (102) respectively passes through the outer furnace body (400), the heating sleeve (200) and the furnace chamber (100).

5. The steam generator according to claim 4, characterized in that, A dust cleaning port (103) is arranged below the feeding port (102), the dust cleaning port (103) is arranged below the grate (101), and the dust cleaning port (103) respectively passes through the outer furnace body (400), the heating sleeve (200) and the furnace chamber (100).

6. The steam generator according to claim 1, characterized in that, A water level gauge (201) is connected to the heating sleeve (200), and the other end of the water level gauge (201) is connected to the side wall of the steam chamber (300).

7. The steam generator according to claim 1, characterized in that, A plurality of radiating fins (104) are arranged side by side on the outer side wall of the furnace chamber (100).

8. The steam generator according to claim 7, characterized in that, A stirring rod (105) is arranged between the radiating fins (104), the stirring rod (105) is rotatably arranged between the radiating fins (104), and the stirring rod (105) is of a spiral plate structure.

9. The steam generator according to claim 3, wherein, A dust cleaning rod (506) is arranged in the heated cigarette tube (502). The upper end of the dust cleaning rod (506) slidably passes through the upper part of the preheating chamber (500), and a dust cleaning plate (507) is arranged at the lower end of the dust cleaning rod (506).

10. The steam generator according to claim 9, characterized in that, A bolt (508) is arranged on the upper part of the dust cleaning rod (506), a threaded sleeve (509) is arranged on the upper part of the preheating chamber (500), and the bolt (508) is in threaded connection with the threaded sleeve (509).

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