Boiler waste heat utilization device

Abstract

The utility model discloses a boiler waste heat utilization device which relates to the technical field of waste heat utilization and comprises a boiler body, a water tank, a heat preservation cylinder and a rotating shaft, the outer ring of the boiler body is fixedly connected with the heat preservation cylinder, the water tank is arranged on the right side of the boiler body, the upper end of the water tank is fixedly connected with a shell, and a rotating wheel is arranged in the shell. When waste gas passes through the rotating wheel, the brush roller and the stirring paddle can rotate, the brush roller can clean the inner wall of the water tank, then the waste gas enters the water tank through the second gas conveying pipeline and the gas outlet pipeline, and the stirring paddle can be driven to rotate through the rotating shaft after the waste gas enters the water tank through the second gas conveying pipeline and the gas outlet pipeline. The plurality of groups of air outlet pipelines are arranged from high to low, so that heat can be more uniformly distributed in the water tank from high to low, and the stirring paddle can stir the water in the water tank, so that the heat can be further more uniformly distributed, and the heating speed of all the water can be accelerated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a waste heat utilization technical field, concretely a boiler waste heat utilization device. BACKGROUND

[0002] With the increasingly serious energy crisis and environmental problems, how to improve energy utilization efficiency and reduce energy waste has become an urgent issue for various industries. In industrial production, boilers are a common heat energy equipment, widely used in steam heating, power generation and various chemical, metallurgical and other processes. However, during the operation of the traditional boiler, a large amount of waste heat is still generated, especially in the high-temperature flue gas discharged during the combustion process. The temperature of these flue gases is usually high, and a large amount of heat energy is contained therein, but due to the lack of effective waste heat recovery devices, this part of heat energy is often directly discharged into the atmosphere, causing energy waste.

[0003] The prior art can discharge the high-temperature exhaust gas in the boiler into the water tank to heat the water, thereby facilitating reuse. However, the water in the water tank does not have flowability, and when the high-temperature exhaust gas enters, the water around the exhaust gas injection port is heated quickly, and the water in other places is heated slowly, so the overall heating efficiency is low, and it takes a long time to heat all the cold water. Therefore, the skilled person in the art provides a boiler waste heat utilization device to solve the problems raised in the above background technology. SUMMARY

[0004] The utility model aims at providing a boiler waste heat utilization device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A boiler waste heat utilization device, comprising a boiler body, a water tank, a heat preservation cylinder and a rotating shaft, the outer circle of the boiler body is fixedly connected with the heat preservation cylinder, the right side of the boiler body is provided with the water tank, the upper end of the water tank is fixedly connected with a shell, the inside of the shell is provided with a rotating wheel, the center of the rotating wheel is fixedly connected with the rotating shaft, wherein the rotating shaft is rotatably connected on the shell and the water tank, the rotating shaft is fixedly connected with a rotating rod, the left and right ends of the rotating rod are rotatably connected with movable shafts, the movable shafts are fixedly connected with brush rollers, wherein the brush rollers are in contact with the inner wall of the water tank, a stirring paddle is arranged below the rotating rod, wherein the stirring paddle is fixedly connected with the rotating shaft, a gas pipeline one is communicatively arranged on the left side of the shell, wherein the left end of the gas pipeline one is communicatively arranged on the heat preservation cylinder.

[0007] As a further scheme of the utility model: a gas pipeline two is communicatively arranged on the right side of the shell, a plurality of groups of gas outlet pipelines are fixedly connected with the gas pipeline two, wherein the gas outlet pipelines are arranged from high to low, and the left ends of the gas outlet pipelines are communicatively arranged on the water tank.

[0008] As a further embodiment of this utility model: an electrically controlled valve is fixedly installed on the gas transmission pipeline, a controller is fixedly installed on the front of the water tank, a water inlet is fixedly connected to the upper end of the water tank, and a drain outlet is fixedly connected to one side of the lower end of the water tank. Both the water inlet and the drain outlet are threaded with sealing caps.

[0009] As a further improvement of this utility model: a first water pump is fixedly installed on the right side of the insulation cylinder, wherein one end of the first water pump is connected to the insulation cylinder through a pipe, and the other end is connected to the water tank through a pipe.

[0010] As a further improvement of this utility model: a second water pump is installed on the pipe on the left side of the water tank, wherein one end of the second water pump is connected to the insulation cylinder through a pipe, and the other end is connected to the water tank through a pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. When the exhaust gas passes through the rotating wheel, it can drive the rotating wheel to rotate. The rotating wheel can drive the rotating shaft to rotate. The rotating shaft drives the rotating rod and the stirring paddle to rotate. The rotating rod drives the movable shaft and the brush roller to rotate. The brush roller can clean the inner wall of the water tank.

[0013] 2. After the exhaust gas enters the water tank through the gas supply pipe and the exhaust pipe, it can heat the water in the tank. The multiple exhaust pipes are arranged from high to low, which can make the heat distribution in the water tank more even from high to low. In addition, the stirring paddle can stir the water in the tank, which can further make the heat distribution more even, thus accelerating the heating speed of all the water.

[0014] 3. Starting the first water pump can inject hot water from the water tank into the insulation cylinder, which can improve the insulation performance of the furnace. Starting the second water pump can inject water from the insulation cylinder into the water tank for heating, thus enabling the recycling of water resources. Attached Figure Description

[0015] Fig. 1 This is a schematic diagram of a boiler waste heat utilization device.

[0016] Fig. 2 This is a schematic diagram of the rotating wheel and stirring paddle in a boiler waste heat utilization device.

[0017] Fig. 3 This is a schematic diagram of the structure of an insulation cylinder in a boiler waste heat utilization device.

[0018] Fig. 4 This is a schematic diagram of the outer shell and gas outlet pipe in a boiler waste heat utilization device.

[0019] In the figure: 1, boiler main body; 2, gas pipeline one; 3, electric control valve; 4, shell; 5, gas pipeline two; 6, gas outlet pipeline; 7, water tank; 8, controller; 9, drain; 10, water inlet; 11, first water pump; 12, second water pump; 13, rotating wheel; 14, rotating shaft; 15, rotating rod; 16, brush roller; 17, movable shaft; 18, stirring paddle; 19, heat preservation cylinder. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0021] Please refer to Figs. 1-4 In the embodiment of the utility model, a boiler waste heat utilization device includes boiler main body 1, water tank 7, heat preservation cylinder 19 and rotating shaft 14, the outer ring of boiler main body 1 is fixedly connected with heat preservation cylinder 19, the right side of boiler main body 1 is provided with water tank 7, the upper end of water tank 7 is fixedly connected with shell 4, rotating wheel 13 is arranged in shell 4, rotating shaft 14 is fixedly connected in the center of rotating wheel 13, wherein rotating shaft 14 is rotatably connected on shell 4 and water tank 7, rotating rod 15 is fixedly connected on rotating shaft 14, movable shaft 17 is rotatably connected on the left and right ends of rotating rod 15, brush roller 16 is fixedly connected on movable shaft 17, wherein brush roller 16 is in contact with the inner wall of water tank 7, stirring paddle 18 is arranged below rotating rod 15, wherein stirring paddle 18 is fixedly connected on rotating shaft 14, gas pipeline one 2 is communicated and arranged on the left side of shell 4, wherein the left end of gas pipeline one 2 is communicated and arranged on heat preservation cylinder 19, gas pipeline two 5 is communicated and arranged on the right side of shell 4, a plurality of groups of gas outlet pipeline 6 are fixedly connected on gas pipeline two 5, wherein gas outlet pipeline 6 is arranged from high to low, and the left end of gas outlet pipeline 6 is communicated and arranged on water tank 7, electric control valve 3 is fixedly installed on gas pipeline one 2, controller 8 is fixedly installed on the front of water tank 7, water inlet 10 is fixedly connected on the upper end of water tank 7, drain 9 is fixedly connected on the lower end of water tank 7, sealing cover is threadedly connected on water inlet 10 and drain 9, first water pump 11 is fixedly installed on the right side of heat preservation cylinder 19, wherein one end of first water pump 11 is communicated with heat preservation cylinder 19 through pipeline, and the other end is communicated with water tank 7 through pipeline, second water pump 12 is installed on the left side of water tank 7 through pipeline, wherein one end of second water pump 12 is communicated with heat preservation cylinder 19 through pipeline, and the other end is communicated with water tank 7 through pipeline.

[0022] The working principle of the utility model is: first open the electric control valve 3, make the waste gas in boiler enter into the shell 4 through the gas pipeline 2, the waste gas contains steam, when passing through the rotating wheel 13, can drive the rotating wheel 13 to rotate, the rotating wheel 13 can drive the rotating shaft 14 to rotate, the rotating shaft 14 drives the rotating rod 15 and the stirring paddle 18 to carry out, the rotating rod 15 drives the movable shaft 17 and the brush roller 16 to rotate, the brush roller 16 can clean the inner wall of the water tank 7, then the waste gas enters the water tank 7 through the gas pipeline two 5 and the gas pipeline 6, and then heats the water in the water tank 7, wherein the multiple gas pipelines 6 are arranged from high to low, can make the heat in the water tank 7 distribute more evenly from high to low, and the stirring paddle 18 can carry out the stirring motion to the water in the water tank 7, so can make the heat distribution more evenly, then start the first water pump 11, can inject the hot water in the water tank 7 into the heat preservation cylinder 19, the heat preservation cylinder 19 can improve the heat preservation performance of the furnace body, then start the second water pump 12, can inject the water in the heat preservation cylinder 19 into the water tank 7 to heat, so can recycle the water resource, finally the water in the water tank 7 can be discharged through the drain hole 9 after the impurities accumulate to a certain degree.

[0023] Furthermore, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, the description manner of the specification is only for the sake of clarity, the skilled in the art should take the specification as a whole, the technical solution in each embodiment can also be combined appropriately, form other embodiments that the skilled in the art can understand.

Claims

1. A boiler waste heat utilization device comprising a boiler main body (1), a water tank (7), a heat preservation cylinder (19) and a rotating shaft (14), characterized in that, The boiler body (1) outer fixedly connected with the heat preservation cylinder (19), boiler body (1) right side direction is provided with water tank (7), water tank (7) upper end fixedly connected with the shell (4), the shell (4) is provided with rotating wheel (13) inside, rotating wheel (13) center fixedly connected with rotating shaft (14), wherein rotating shaft (14) is rotatably connected on the shell (4) and water tank (7), rotating shaft (14) is fixedly connected with rotating rod (15), rotating rod (15) left and right two ends are rotatably connected with movable shaft (17), movable shaft (17) are all fixedly connected with brush roller (16), wherein brush roller (16) and water tank (7) inner wall contact, rotating rod (15) below is provided with stirring paddle (18), wherein stirring paddle (18) is fixedly connected on the rotating shaft (14), the shell (4) left side is provided with the gas pipeline one (2), wherein the gas pipeline one (2) left end is communicated and is provided on the heat preservation cylinder (19), the shell (4) right side is provided with the gas pipeline two (5), and the gas pipeline two (5) is fixedly connected with a plurality of groups of gas outlet pipe (6).

2. A boiler waste heat utilization device according to claim 1, characterized in that The gas outlet pipe (6) is arranged from high to low, and the left end of the gas outlet pipe (6) is communicated and arranged on the water tank (7).

3. A boiler waste heat utilization device according to claim 1, characterized in that, The gas pipeline one (2) is fixedly installed with an electric control valve (3), and the water tank (7) is fixedly installed with a controller (8) on the front.

4. A boiler waste heat utilization device according to claim 1, characterized in that, The water tank (7) upper end is fixedly connected with the water inlet (10), and the water tank (7) lower end one side is fixedly connected with the drain (9).

5. A boiler waste heat utilization device according to claim 4, characterized in that, The water inlet (10) and the drain (9) are all screw-connected with sealing covers.

6. A boiler waste heat utilization device according to claim 1, characterized in that, The heat preservation cylinder (19) right side is fixedly installed with the first water pump (11), wherein one end of the first water pump (11) is communicated with the heat preservation cylinder (19) through a pipeline, and the other end is communicated with the water tank (7) through a pipeline.

7. A boiler waste heat utilization device according to claim 1, characterized in that, The water tank (7) left side pipeline is installed with the second water pump (12), wherein one end of the second water pump (12) is communicated with the heat preservation cylinder (19) through a pipeline, and the other end is communicated with the water tank (7) through a pipeline.

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