Preheating structure of water inlet end of boiler

Abstract

The utility model relates to the technical field of heat recycling structures, in particular to a preheating structure of a boiler water inlet end, which comprises a smelting furnace main body and a boiler water inlet pipe arranged on one side of the smelting furnace main body, a heat exchange chamber is arranged between the inner side and the outer side of the smelting furnace main body, and a first spiral heat exchange pipe is arranged in the heat exchange chamber. A conveying pipe is fixedly installed at the water inlet end of the first spiral heat exchange pipe, a conveying pump is fixedly installed at the tail end of the conveying pipe, a suction pipe is fixedly installed at the water inlet end of the conveying pump, a heat preservation cylinder is fixedly installed at the tail end of the suction pipe, a heat preservation pipe is installed at the water outlet end of the first spiral heat exchange pipe, and a second spiral heat exchange pipe is installed at the tail end of the heat preservation pipe. The second spiral heat exchange pipe is located in the boiler water inlet pipe, a backflow pipe is fixedly installed at the water outlet end of the second spiral heat exchange pipe, and the tail end of the backflow pipe is fixedly installed on the heat preservation cylinder. The waste heat recycling device can recycle waste heat and is beneficial to improving the utilization rate of heat energy.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat recycling structure technical field, concretely relates to a preheating structure of boiler water inlet end. BACKGROUND

[0002] At present, with the continuous increase of the use of battery, the recycling of waste batteries can play a good effect of reducing environmental pollution, when the recycling operation of waste batteries is carried out, the waste lead-acid battery is usually subjected to smelting operation, and the lead in the waste lead-acid battery can be reduced through smelting, but when the smelting operation of the waste lead-acid battery is carried out, since smelting is a high-temperature environment, after smelting is completed, there is still a lot of residual heat in the smelting furnace, and the traditional operation method is to directly rely on the self-cooling of the smelting furnace, but when the self-cooling is carried out, a lot of heat on the smelting furnace is lost in the air, causing the heat to be wasted, and at the same time, the cooling time required by the self-cooling is long, which is not conducive to the subsequent cleaning operation in the smelting furnace and delays the processing progress.

[0003] In addition, when the traditional boiler is used for water boiling operation, the heating is mainly relied on the heating system itself, and there is lack of a component capable of recycling the residual heat in the smelting furnace, which causes a lot of heat energy to be wasted and energy loss. In view of this, the utility model provides a preheating structure of boiler water inlet end. UTILITY MODEL CONTENT

[0004] The utility model discloses a preheating structure of boiler water inlet end to solve the defects in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A preheating structure of boiler water inlet end, including smelting furnace main part and the boiler water inlet pipe of setting at smelting furnace main part one side, the smelting furnace main part is the double-layer structure of inside and outside, be provided with heat exchange chamber between the inside and outside two sides furnace body of smelting furnace main part, be provided with first spiral heat exchange pipe in the heat exchange chamber, the water inlet end fixed mounting of first spiral heat exchange pipe has the delivery pipe, the terminal fixed mounting of delivery pipe has the delivery pump, the water inlet end fixed mounting of delivery pump has the suction pipe, the terminal fixed mounting of suction pipe has the heat preservation cylinder, the water outlet end fixed mounting of first spiral heat exchange pipe has the heat preservation pipe, the terminal fixed mounting of heat preservation pipe has the second spiral heat exchange pipe, the second spiral heat exchange pipe is located in the boiler water inlet pipe, the water outlet end fixed mounting of second spiral heat exchange pipe has the backflow pipe, the terminal fixed mounting of backflow pipe is on heat preservation cylinder, the top fixed mounting of smelting furnace main part has the hot gas exhaust pipe for the hot gas into the heat preservation cylinder.

[0007] Preferably, the first spiral heat exchange pipe is fixedly installed on the inner cavity wall of the heat exchange chamber, and the first spiral heat exchange pipe is in a spiral shape.

[0008] Preferably, the end flange of the boiler water inlet pipe is connected to an external boiler, and the first spiral heat exchange pipe is arranged around the inner cylinder of the smelting furnace body.

[0009] Preferably, the second spiral heat exchange pipe is arranged along the length direction of the boiler water inlet pipe, and the second spiral heat exchange pipe is in a spiral shape.

[0010] Preferably, the heat preservation cylinder has a double-layer structure, a ventilation chamber is arranged between the inner and outer double-layer cylinders, and the end of the hot gas discharge pipe is fixedly installed on the heat preservation cylinder and communicates with the ventilation chamber.

[0011] Preferably, a heat preservation cover is hingedly connected to the top surface of the heat preservation cylinder through a hinge, and the water inlet end of the suction pipe is inserted into the bottom wall of the heat preservation cylinder.

[0012] Preferably, a blowdown pipe communicating with the ventilation chamber is fixedly installed on the bottom cylinder of the heat preservation cylinder, and a valve is fixedly installed on the blowdown pipe.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1、The utility model discloses a heat exchange device for smelting furnace, which comprises a heat exchange chamber, a boiler water inlet pipe, a first spiral heat exchange pipe, a second spiral heat exchange pipe, a heat preservation cylinder, a hot gas discharge pipe, a suction pipe and a blowdown pipe.

[0015] 2、The utility model discloses a heat exchange device for smelting furnace, which comprises a heat exchange chamber, a boiler water inlet pipe, a first spiral heat exchange pipe, a second spiral heat exchange pipe, a heat preservation cylinder, a hot gas discharge pipe, a suction pipe and a blowdown pipe. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is an explosion structure schematic view of the utility model;

[0018] Figure 3 It is a part structure schematic view of the utility model;

[0019] Figure 4 It is the sectional view of the heat preservation cylinder of the utility model;

[0020] The meaning of each reference sign in the figure is:

[0021] 1, smelting furnace main body; 10, heat exchange chamber; 11, hot gas discharge pipe;

[0022] 2, boiler water inlet pipe;

[0023] 3, delivery pump; 30, suction pipe; 31, delivery pipe; 32, first spiral heat exchange pipe; 33, heat preservation pipe; 34, second spiral heat exchange pipe; 35, return pipe; 36, heat preservation cylinder; 361, air chamber; 37, blowdown pipe; 371, valve; 38, heat preservation cover. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a preheating structure of boiler water inlet end, including smelting furnace main body 1 and being arranged in smelting furnace main body 1 one side boiler water inlet pipe 2, smelting furnace main body 1 is double-layer structure, heat exchange chamber 10 is arranged between the inner and outer two sides furnace body of smelting furnace main body 1, first spiral heat exchange pipe 32 is arranged in heat exchange chamber 10, first spiral heat exchange pipe 32 is fixedly installed on the inner side cavity wall of heat exchange chamber 10, first spiral heat exchange pipe 32 is spiral, first spiral heat exchange pipe 32 is around on the inner side cylinder of smelting furnace main body 1, after water is passed in first spiral heat exchange pipe 32, it can be exchanged with the waste heat in smelting furnace main body 1 and heat exchange operation is carried out;

[0026] Specifically, the water inlet end of the first spiral heat exchange pipe 32 is fixedly installed with a conveying pipe 31, the end of the conveying pipe 31 is fixedly installed with a conveying pump 3, the water inlet end of the conveying pump 3 is fixedly installed with a suction pipe 30, the end of the suction pipe 30 is fixedly installed with a heat preservation cylinder 36, the water outlet end of the first spiral heat exchange pipe 32 is fixedly installed with a heat preservation pipe 33, the end of the heat preservation pipe 33 is fixedly installed with a second spiral heat exchange pipe 34, the second spiral heat exchange pipe 34 is located in the boiler water inlet pipe 2, the water outlet end of the second spiral heat exchange pipe 34 is fixedly installed with a return pipe 35, the end of the return pipe 35 is fixedly installed on the heat preservation cylinder 36, the end flange of the boiler water inlet pipe 2 is connected to an external boiler, the second spiral heat exchange pipe 34 is arranged along the length direction of the boiler water inlet pipe 2, the second spiral heat exchange pipe 34 is in a spiral shape, so that the cold water in the boiler water inlet pipe 2 is preheated by the hot water in the second spiral heat exchange pipe 34, and the heat energy utilization rate is improved.

[0027] In the embodiment, the top of the smelting furnace body 1 is fixedly installed with a hot gas discharge pipe 11 for passing hot gas into the heat preservation cylinder 36, so that part of the hot gas discharged from the top of the smelting furnace body 1 can continue to enter the heat preservation cylinder 36 for heating operation.

[0028] Specifically, the heat preservation cylinder 36 has an inner-outer double-layer structure, and a ventilation chamber 361 is arranged between the inner-outer double-layer cylinder bodies of the heat preservation cylinder 36, the end of the hot gas discharge pipe 11 is fixedly installed on the heat preservation cylinder 36 and communicates with the ventilation chamber 361, so that the hot gas discharged along the hot gas discharge pipe 11 can enter the heat preservation cylinder 36 for heating operation.

[0029] Further, the heat preservation cover 38 is hingedly connected to the top surface of the heat preservation cylinder 36 through a hinge, and after the heat preservation cover 38 is closed, the heat preservation effect can be achieved; the water inlet end of the suction pipe 30 is inserted into the bottom wall part of the heat preservation cylinder 36, so that the water suction is more smooth.

[0030] In addition, the bottom cylinder body of the heat preservation cylinder 36 is fixedly installed with a blowdown pipe 37 which communicates with the ventilation chamber 361, and the blowdown pipe 37 is fixedly installed with a valve 371, so that the condensed water in the ventilation chamber 361 can be discharged outward along the blowdown pipe 37.

[0031] The preheating structure of the boiler water inlet end adds proper water into the heat preservation cylinder 36, and then the water in the heat preservation cylinder 36 is conveyed into the first spiral heat exchange pipe 32 by starting and working the conveying pump 3, the cold water in the first spiral heat exchange pipe 32 can be heat exchanged with the waste heat in the smelting furnace body 1, the water temperature in the first spiral heat exchange pipe 32 is increased after heat exchange, the water in the first spiral heat exchange pipe 32 after the water temperature is increased can be continuously conveyed into the second spiral heat exchange pipe 34, at this time, the hot water in the second spiral heat exchange pipe 34 can be heat exchanged with the cold water in the boiler water inlet pipe 2, the water in the boiler water inlet pipe 2 is preheated, the water after heat exchange enters the heat preservation cylinder 36 along the backflow pipe 35, in addition, the hot gas discharged along the top of the smelting furnace body 1 can enter the air chamber 361 along the hot gas discharge pipe 11, and further heating and heat exchange operation with the water in the heat preservation cylinder 36 is realized.

[0032] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A preheating structure of a boiler water inlet end, comprising a smelting furnace body (1) and a boiler water inlet pipe (2) arranged on one side of the smelting furnace body (1), characterized in that: The smelting furnace body (1) is of double-layer structure, a heat exchange chamber (10) is arranged between the inner and outer furnace bodies of the smelting furnace body (1), a first spiral heat exchange pipe (32) is arranged in the heat exchange chamber (10), a delivery pipe (31) is fixedly installed at the water inlet end of the first spiral heat exchange pipe (32), a delivery pump (3) is fixedly installed at the end of the delivery pipe (31), a suction pipe (30) is fixedly installed at the water inlet end of the delivery pump (3), a heat preservation cylinder (36) is fixedly installed at the end of the suction pipe (30), a heat preservation pipe (33) is fixedly installed at the water outlet end of the first spiral heat exchange pipe (32), a second spiral heat exchange pipe (34) is fixedly installed at the end of the heat preservation pipe (33), the second spiral heat exchange pipe (34) is located in the boiler water inlet pipe (2), a backflow pipe (35) is fixedly installed at the water outlet end of the second spiral heat exchange pipe (34), the end of the backflow pipe (35) is fixedly installed on the heat preservation cylinder (36), a hot gas discharge pipe (11) for passing hot gas into the heat preservation cylinder (36) is fixedly installed at the top of the smelting furnace body (1); the heat preservation cylinder (36) is of double-layer structure, an air passage chamber (361) is arranged between the inner and outer cylinder bodies of the heat preservation cylinder (36), the end of the hot gas discharge pipe (11) is fixedly installed on the heat preservation cylinder (36) and communicates with the air passage chamber (361); a blowdown pipe (37) communicating with the air passage chamber (361) is fixedly installed on the bottom cylinder body of the heat preservation cylinder (36), a valve (371) is fixedly installed on the blowdown pipe (37).

2. The preheating structure of the boiler water inlet end according to claim 1, characterized in that: The first spiral heat exchange pipe (32) is fixedly installed on the inner cavity wall of the heat exchange chamber (10) and is in spiral shape.

3. The preheating structure of the water inlet end of a boiler according to claim 1, characterized in that: The end flange of the boiler water inlet pipe (2) is connected to an external boiler, and the first spiral heat exchange pipe (32) is wrapped around the inner cylinder body of the smelting furnace body (1).

4. The preheating structure of the water inlet end of a boiler according to claim 1, characterized in that: The second spiral heat exchange pipe (34) is arranged along the length direction of the boiler water inlet pipe (2) and is in spiral shape.

5. The preheating structure of the water inlet end of a boiler according to claim 1, characterized in that: A heat preservation cover (38) is hingedly connected to the top surface of the heat preservation cylinder (36) through a hinge, and the water inlet end of the suction pipe (30) is inserted into the bottom wall position of the heat preservation cylinder (36).

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