Exhaust smoke waste heat recycling device of gas-fired boiler

Abstract

The utility model discloses a gas-fired boiler exhaust smoke waste heat recycling device in the field of recycling devices, which comprises a heat conduction cylinder, second baffle rings are fixedly mounted at two ends of the outer side of the outer ring surface of the heat conduction cylinder, and a fixed cylinder is fixedly mounted between the edge parts of the opposite surfaces of the second baffle rings; a spiral partition plate wound on the outer side of the heat conduction barrel is jointly installed between the inner ring face of the fixing barrel and the outer ring face of the heat conduction barrel, and a water inlet pipe communicated with the interior of the fixing barrel is fixedly installed in the middle of one end of the upper side of the outer ring face of the fixing barrel. The waste of heat energy caused by heat carried in the discharged flue gas can be avoided, heat pollution to the surrounding environment caused by heat carried by the discharged flue gas can be conveniently prevented, and the use of the gas-fired boiler is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to recycling device field, concretely is a kind of gas-fired boiler flue gas heat recovery and recycling device. BACKGROUND

[0002] Gas-fired boiler is with natural gas, liquefied gas, city gas etc. Gas fuel is energy, converts chemical energy into heat energy through combustion, gas is mixed after a certain proportion in combustor in furnace, and carries out sufficient combustion, releases a large amount of heat energy, these heat energy is transferred to the water in the boiler by the heating surface of boiler, and makes water temperature or vaporization into steam.

[0003] Gas-fired boiler flue gas is mixed gas produced after gas combustion in boiler, and gas-fired boiler flue gas contains multiple components, has certain characteristics and influence, gas-fired boiler is widely used in industrial production and life heating, in the process of gas-fired boiler operation, high-temperature flue gas produced by fuel combustion carries a large amount of heat and is discharged from chimney.

[0004] But existing gas-fired boiler is not conducive to recycling and reusing the residual heat carried in flue gas generated by gas-fired boiler when using, the temperature carried in flue gas of gas-fired boiler is usually high, directly discharging gas-fired boiler flue gas not only causes waste of heat energy, but also produces heat pollution to surrounding environment, which is not conducive to using gas-fired boiler.

[0005] Therefore, we propose a kind of gas-fired boiler flue gas heat recovery and recycling device. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of gas-fired boiler flue gas heat recovery and recycling device to solve the problems raised in the above background.

[0007] To achieve the above object, the utility model provides the following technical scheme:

[0008] A kind of gas-fired boiler flue gas heat recovery and recycling device, including heat conduction cylinder, the second baffle ring of two ends of the outer ring surface outer side of heat conduction cylinder is fixedly installed, the edge portion between the opposite faces of second baffle ring is fixedly installed with fixed cylinder, the inner ring surface of fixed cylinder and the outer ring surface of heat conduction cylinder are jointly installed with spiral-shaped baffle around the outer side of heat conduction cylinder, the middle part of one end of the outer ring surface of fixed cylinder is fixedly installed with water inlet pipe connected with the inside of fixed cylinder, the middle part of one end of the outer ring surface of fixed cylinder away from water inlet pipe is fixedly installed with water outlet pipe connected with the inside of fixed cylinder.

[0009] As a further scheme of the utility model: the water inlet pipe is in vertical state, the inner ring surface of fixed cylinder is provided with matching water inlet hole corresponding to water inlet pipe, the inner ring surface and the outer ring surface of the corresponding position of fixed cylinder are penetrated by water inlet hole.

[0010] By adopting the technical scheme, the water inlet hole is arranged, which helps to communicate the water inlet pipe and the fixed cylinder.

[0011] As a further scheme of the utility model, the water outlet pipe is in a vertical state, the fixed cylinder is provided with a matching water outlet hole corresponding to the inner ring surface of the water outlet pipe, and the water outlet hole penetrates the inner ring surface and the outer ring surface of the corresponding position of the fixed cylinder.

[0012] By adopting the technical scheme, the water outlet hole is arranged, which helps to communicate the water outlet pipe and the fixed cylinder.

[0013] As a further scheme of the utility model, the inner ring surface of the heat conduction cylinder is fixedly provided with a plurality of heat conduction rings in a horizontal direction, and the outer ring surface of the heat conduction ring is in a matching state of being matched with the corresponding position on the inner ring surface of the heat conduction cylinder.

[0014] By adopting the technical scheme, the heat conduction cylinder is arranged, which can fix and limit the heat conduction ring and facilitate the stable use of the heat conduction ring.

[0015] As a further scheme of the utility model, the inner side of the inner ring surface of the heat conduction ring is fixedly provided with a cross-shaped heat conduction block, and the periphery of the cross-shaped heat conduction block is in a matching state of being matched with the corresponding position on the inner ring surface of the corresponding heat conduction ring.

[0016] By adopting the technical scheme, the heat conduction ring is arranged, which can fix and limit the cross-shaped heat conduction block.

[0017] As a further scheme of the utility model, the heat conduction cylinder is in a horizontal state, the two end surfaces of the heat conduction cylinder are fixedly provided with first blocking rings, and the inner side of the surface of the first blocking ring away from the heat conduction cylinder on the side close to the water inlet pipe is fixedly provided with an air inlet pipe.

[0018] By adopting the technical scheme, the heat conduction cylinder is arranged, which can fix and limit the first blocking ring.

[0019] As a further scheme of the utility model, the air inlet pipe is provided with a first mounting ring at the end away from the first blocking ring, and the inner side of the surface of the first blocking ring away from the heat conduction cylinder on the side close to the water outlet pipe is fixedly provided with an air outlet pipe.

[0020] By adopting the technical scheme, the first mounting ring is arranged, which helps to install and limit the air inlet pipe.

[0021] As a further scheme of the utility model, the air outlet pipe is in a horizontal state, and the air outlet pipe is provided with a second mounting ring at the end away from the first blocking ring.

[0022] By adopting the technical scheme, the second mounting ring is arranged, which is helpful for mounting and limiting the exhaust pipe.

[0023] Compared with the prior art, the utility model has the advantages of:

[0024] 1、The utility model discloses a heat recovery device for gas boiler, which is characterized by comprising a fixed cylinder, a heat conducting cylinder, a first stop ring, a second stop ring, a gas inlet pipe, an exhaust pipe, a first mounting ring, a second mounting ring and a heat conducting ring.

[0025] 2、The heat carried in the flue gas in the heat conducting cylinder is transferred to the heat conducting cylinder through the cross-shaped heat conducting block and the heat conducting ring, the water in the fixed cylinder flows along the spiral-shaped baffle, the heat transferred to the heat conducting cylinder by the cross-shaped heat conducting block and the heat conducting ring heats the water, so as to recycle the hot water, and the water flowing along the spiral-shaped baffle can more fully absorb the heat on the heat conducting cylinder because the spiral-shaped baffle is wound outside the heat conducting cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0026] Other purposes and results of the utility model will be more apparent and easy to understand by referring to the following description in combination with the drawings and with a more comprehensive understanding of the utility model. In the drawings:

[0027] Fig. 1 It is a structural schematic diagram of the utility model;

[0028] Fig. 2 It is a structural schematic diagram of the fixed cylinder of the utility model;

[0029] Fig. 3 It is a structural schematic diagram of the second stop ring of the utility model;

[0030] Fig. 4 It is a structural schematic diagram of the cross-shaped heat conducting block of the utility model.

[0031] In the drawings: 1, heat conducting cylinder; 2, fixed cylinder; 3, first stop ring; 4, second stop ring; 5, gas inlet pipe; 6, exhaust pipe; 7, first mounting ring; 8, second mounting ring; 9, heat conducting ring; 10, cross-shaped heat conducting block; 11, spiral-shaped baffle; 12, water inlet pipe; 13, water outlet pipe; 14, water inlet hole; 15, water outlet hole. DETAILED DESCRIPTION

[0032] The technical solutions of the embodiments of the present application will be described clearly and completely in combination with the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of the present application.

[0033] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. It should be pointed out that all the drawings are exemplary representations. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0035] The present application will be further described in detail below through specific embodiments and in combination with the drawings.

[0036] Please refer to Figs. 1-4The utility model discloses a kind of gas boiler flue gas exhaust heat recovery and reuse devices, including heat conduction cylinder 1, the two ends of the outer ring surface outside of heat conduction cylinder 1 are fixedly installed with second baffle ring 4, the edge portion between the opposite surface of second baffle ring 4 is fixedly installed with fixed cylinder 2 in common, the inner ring surface between fixed cylinder 2 and the outer ring surface of heat conduction cylinder 1 is fixedly installed with spiral baffle 11 around the outside of heat conduction cylinder 1 in common, fixed cylinder 2 outer ring surface upper side one end middle part is fixedly installed with water inlet pipe 12 being connected with the inside of fixed cylinder 2, fixed cylinder 2 outer ring surface lower side far from water inlet pipe 12 one end middle part is fixedly installed with water outlet pipe 13 being connected with the inside of fixed cylinder 2, when using, it is helpful to the waste heat carried in flue gas generated by gas boiler is recycled and reused, after the waste heat carried in flue gas exhaust of gas boiler is recycled, the temperature of the flue gas discharged is reduced, the waste of heat energy caused by the flue gas discharged carrying heat can be avoided, it is convenient to prevent heat pollution to the surrounding environment due to the flue gas discharged carrying heat, it is helpful to use gas boiler.

[0037] Wherein, water inlet pipe 12 is in vertical state, the inner ring surface of fixed cylinder 2 corresponding water inlet pipe 12 is provided with matching water inlet hole 14, water inlet hole 14 penetrates the inner ring surface and outer ring surface of corresponding position on fixed cylinder 2, water inlet hole 14 is helpful to the communication between the inside of water inlet pipe 12 and fixed cylinder 2;Water outlet pipe 13 is in vertical state, the inner ring surface of fixed cylinder 2 corresponding water outlet pipe 13 is provided with matching water outlet hole 15, water outlet hole 15 penetrates the inner ring surface and outer ring surface of corresponding position on fixed cylinder 2, water outlet hole 15 is helpful to the communication between the inside of water outlet pipe 13 and fixed cylinder 2.

[0038] The inner ring surface of heat conduction cylinder 1 is fixedly installed with several heat conduction rings 9 along horizontal direction at intervals, the outer ring surface of heat conduction ring 9 is all in matching state with corresponding position between the inner ring surface of heat conduction cylinder 1, heat conduction cylinder 1 can fix and limit heat conduction ring 9, it is convenient to stably use heat conduction ring 9;The inner side of the inner ring surface of heat conduction ring 9 is fixedly installed with cross heat conduction block 10, the periphery of cross heat conduction block 10 is all in matching state with corresponding position between the inner ring surface of corresponding heat conduction ring 9, heat conduction ring 9 can fix and limit cross heat conduction block 10.

[0039] The heat conduction cylinder 1 is in a horizontal state, both ends of the heat conduction cylinder 1 are fixed with first blocking rings 3, the inner side of the first blocking ring 3 away from the side surface of the heat conduction cylinder 1 near the water inlet pipe 12 is fixedly installed with an air inlet pipe 5, the heat conduction cylinder 1 can fix and limit the first blocking ring 3; the end of the air inlet pipe 5 away from the first blocking ring 3 is installed with a first mounting ring 7, the inner side of the first blocking ring 3 away from the side surface of the heat conduction cylinder 1 near the water outlet pipe 13 is fixedly installed with an air outlet pipe 6, and the first mounting ring 7 is helpful to install and limit the air inlet pipe 5; the air outlet pipe 6 is in a horizontal state, and the end of the air outlet pipe 6 away from the first blocking ring 3 is installed with a second mounting ring 8, and the second mounting ring 8 is helpful to install and limit the air outlet pipe 6.

[0040] The working principle of the utility model is: in the process of using, the first mounting ring 7 is correspondingly arranged between the flue gas outlet pipe of the external gas boiler, the first mounting ring 7 is installed between the flue gas outlet pipe of the external gas boiler, the second mounting ring 8 is correspondingly arranged between the flue gas discharge pipe of the external gas boiler, the second mounting ring 8 is installed between the flue gas discharge pipe of the external gas boiler, the upper end of the water inlet pipe 12 is installed between the water supply pipe of the external gas boiler, and the lower end of the water outlet pipe 13 is installed between the hot water recovery pipe of the external gas boiler.

[0041] When the external gas boiler is used, the flue gas generated by the gas boiler is discharged to the air inlet pipe 5 through the flue gas outlet pipe and the first mounting ring 7, the flue gas carrying heat in the air inlet pipe 5 enters the heat conduction cylinder 1 through the first blocking ring 3, the heat carried by the flue gas in the heat conduction cylinder 1 is transmitted to the heat conduction cylinder 1 through the cross-shaped heat conduction block 10 and the heat conduction ring 9, the water supply pipe of the external gas boiler can convey water into the fixed cylinder 2 through the water inlet pipe 12 and the water inlet hole 14 on the fixed cylinder 2, the water in the fixed cylinder 2 flows along the spiral-shaped partition plate 11, when the water flows along the spiral-shaped partition plate 11, the heat transmitted to the heat conduction cylinder 1 by the cross-shaped heat conduction block 10 and the heat conduction ring 9 heats the water, and the heated hot water is discharged to the hot water recovery pipe of the external gas boiler through the water outlet hole 15 on the fixed cylinder 2 and the water outlet pipe 13, so that the hot water can be recycled.

[0042] Because the spiral-shaped partition plate 11 is wound on the outside of the heat conduction cylinder 1, the water flowing along the spiral-shaped partition plate 11 can more fully absorb the heat on the heat conduction cylinder 1, the second blocking ring 4 can block both ends of the fixed cylinder 2, so that the water in the fixed cylinder 2 can not leak, and the flue gas after waste heat recovery through the cross-shaped heat conduction block 10, the heat conduction ring 9 and the heat conduction cylinder 1 is conveyed to the air outlet pipe 6 through the first blocking ring 3, and the flue gas in the air outlet pipe 6 is discharged to the flue gas discharge pipe of the external gas boiler through the second mounting ring 8, so that the flue gas after waste heat recovery can be discharged.

[0043] In the process of using, it is helpful to recycle the residual heat carried by the flue gas generated by the gas boiler, and after recycling the residual heat carried by the flue gas of the gas boiler, the temperature of the discharged flue gas is reduced, the waste of heat energy caused by the discharged flue gas carrying heat can be avoided, the heat pollution to the surrounding environment caused by the discharged flue gas carrying heat can be prevented, and the gas boiler is convenient to use.

[0044] The above is only a specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A waste heat recovery and reuse device for flue gas from a gas-fired boiler, comprising a heat-conducting cylinder (1), characterized in that: A second retaining ring (4) is fixedly installed at both ends of the outer ring surface of the heat-conducting cylinder (1). A fixed cylinder (2) is fixedly installed between the edge portions of the opposite surfaces of the second retaining ring (4). A spiral baffle (11) wrapped around the outside of the heat-conducting cylinder (1) is installed between the inner ring surface of the fixed cylinder (2) and the outer ring surface of the heat-conducting cylinder (1). A water inlet pipe (12) communicating with the inside of the fixed cylinder (2) is fixedly installed at the middle of the upper end of the outer ring surface of the fixed cylinder (2). A water outlet pipe (13) communicating with the inside of the fixed cylinder (2) is fixedly installed at the middle of the lower end of the outer ring surface of the fixed cylinder (2) away from the water inlet pipe (12).

2. The waste heat recovery and reuse device for gas-fired boiler flue gas according to claim 1, characterized in that: The water inlet pipe (12) is in a vertical position. The fixed cylinder (2) has a matching water inlet hole (14) on the inner ring surface corresponding to the water inlet pipe (12). The water inlet hole (14) penetrates the inner ring surface and outer ring surface of the fixed cylinder (2) at the corresponding position.

3. The waste heat recovery and reuse device for gas-fired boiler flue gas according to claim 2, characterized in that: The water outlet pipe (13) is in a vertical position. The fixed cylinder (2) has a matching water outlet hole (15) on the inner ring surface corresponding to the water outlet pipe (13). The water outlet hole (15) penetrates the inner ring surface and outer ring surface of the fixed cylinder (2) at the corresponding position.

4. The waste heat recovery and reuse device for gas-fired boiler flue gas according to claim 3, characterized in that: A plurality of heat-conducting rings (9) are fixedly installed at intervals along the horizontal direction on the inner ring surface of the heat-conducting cylinder (1), and the outer ring surface of each heat-conducting ring (9) is in a matching and fitting state with the corresponding position on the inner ring surface of the heat-conducting cylinder (1).

5. The waste heat recovery and reuse device for gas-fired boiler flue gas according to claim 4, characterized in that: A cross-shaped heat-conducting block (10) is fixedly installed on the inner side of the inner ring surface of the heat-conducting ring (9). The four sides of the cross-shaped heat-conducting block (10) are in a matching and fitting state with the corresponding position on the inner ring surface of the corresponding heat-conducting ring (9).

6. The waste heat recovery and reuse device for gas-fired boiler flue gas according to claim 5, characterized in that: The heat-conducting cylinder (1) is in a horizontal state. Both ends of the heat-conducting cylinder (1) are fixed with a first retaining ring (3). An air inlet pipe (5) is fixedly installed on the inner side of the surface of the first retaining ring (3) near the end of the water inlet pipe (12) away from the heat-conducting cylinder (1).

7. The waste heat recovery and reuse device for gas-fired boiler flue gas according to claim 6, characterized in that: The air inlet pipe (5) is equipped with a first mounting ring (7) at the end away from the first baffle ring (3), and an exhaust pipe (6) is fixedly installed on the inner side of the surface of the first baffle ring (3) away from the heat conduction cylinder (1) at the end near the water outlet pipe (13).

8. The waste heat recovery and reuse device for gas-fired boiler flue gas according to claim 7, characterized in that: The exhaust pipe (6) is in a horizontal state, and a second mounting ring (8) is installed at the end of the exhaust pipe (6) away from the first retaining ring (3).

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