Coil pipe type electromagnetic double-sided heating energy-saving hot blast stove

Abstract

The utility model discloses a coil pipe type electromagnetic double-face heating energy-saving hot blast stove which comprises a blast stove body, a left end cover is fixedly connected to the left side wall of the blast stove body, an air outlet is formed in the left end cover, a right end cover is fixedly connected to the right side wall of the blast stove body, an air inlet pipe is fixedly connected to the circumferential face of the blast stove body, and an air outlet is formed in the right end cover. And the top of the air inlet pipe is fixedly connected with an air feeder. By arranging the air furnace body, the left end cover, the air outlet, the right end cover, the air inlet pipe, the air feeder, the heat preservation cotton, the inner pipe, the inner container, the coil pipe ring, the upper air channel, the right air channel, the connecting wire and the oscillation power supply mechanism, the oscillation power supply mechanism electrifies the coil pipe, the coil pipe ring generates a variable magnetic field, and therefore the inner pipe and the inner container are both heated; air is preheated through the upper air duct and then heated again through the right air duct and the interior of the inner container, so that the temperature of the air is increased more quickly, the heat utilization rate of the device is improved, and energy is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal power machinery, in particular to a coil type electromagnetic double-sided heating energy-saving hot air furnace. Background Art

[0002] Hot blast furnace is a thermal power machine. It began to be widely used in my country in the late 1970s. It has become a replacement product for electric heat source and traditional steam power heat source in many industries. There are many varieties and series of hot blast furnaces. They are divided into manual burning and machine burning according to the coal adding method, and divided into coal, oil, gas furnaces, etc. according to the type of fuel.

[0003] Electromagnetic heating is also called electromagnetic induction heating, that is, electromagnetic heating technology. The principle of electromagnetic heating is to generate an alternating magnetic field through the components of the electronic circuit board. When an iron container is placed on it, the surface of the container cuts the alternating magnetic field lines and generates alternating current (eddy current) in the metal part at the bottom of the container. The eddy current causes the carriers at the bottom of the container to move irregularly at high speed, and the carriers and atoms collide and rub against each other to generate heat energy. This has the effect of heating objects. Because the iron container itself generates heat, the heat conversion rate is particularly high, up to 95%, which is a direct heating method. Induction cookers, induction stoves, and electromagnetic heating rice cookers all use electromagnetic heating technology.

[0004] In existing electromagnetic heating hot air furnaces, air is generally injected into the electromagnetic equipment through a blower and heated after passing through the electromagnetic coil. The heat utilization rate of this method is still not high and there is still a lot of room for improvement. Utility Model Content

[0005] The utility model aims to provide a coil-type electromagnetic double-sided heating energy-saving hot air furnace. An oscillating power supply mechanism energizes the coil ring, so that the coil ring generates an alternating magnetic field, thereby heating the inner tube and the inner tank. When the blower sends air to the furnace body through the air inlet pipe, it is preheated through the upper air duct and then heated again through the right air duct and the inside of the inner tank, so that the air temperature rises faster, the thermal utilization rate of the device is improved, and energy is saved.

[0006] To achieve the above-mentioned purpose, a coil-type electromagnetic double-sided heating energy-saving hot air furnace is provided, comprising: a furnace body, a left end cover is fixedly connected to the left side wall of the furnace body, an air outlet is arranged on the left end cover, a right end cover is fixedly connected to the right side wall of the furnace body, an air inlet pipe is fixedly connected to the circumferential surface of the furnace body, a blower is fixedly connected to the top of the air inlet pipe, thermal insulation cotton is fixedly connected to the inner circumferential surface of the furnace body, an inner tube is fixedly connected to the inner circumferential surface of the thermal insulation cotton, an inner liner is arranged inside the inner tube, a coil ring is fixedly connected to the circumferential surface of the inner liner, an upper air duct is formed between the outer side of the coil ring and the inner wall of the inner tube, a right air duct is formed between the right end of the inner liner and the left side of the right end cover, and connecting wires are fixedly connected to both ends of the coil ring, and the connecting wires are fixedly connected to an oscillation power supply mechanism.

[0007] According to the coil-type electromagnetic double-sided heating energy-saving hot air stove, the left side wall of the inner container is fixedly connected to the left end cover.

[0008] According to the coil-type electromagnetic double-sided heating energy-saving hot air furnace, the bottom of the air inlet pipe penetrates the furnace body and the thermal insulation cotton and is fixedly connected to the inner pipe.

[0009] According to the coil-type electromagnetic double-sided heating energy-saving hot air furnace, the air inlet pipe, the upper air duct, the right air duct, the inner tank and the air outlet are all interconnected.

[0010] According to the coil-type electromagnetic double-sided heating energy-saving hot air stove, the number of the connecting wires is set to two.

[0011] According to the coil-type electromagnetic double-sided heating energy-saving hot air furnace, the inner tube and the inner tank are both made of stainless steel.

[0012] The above scheme has the beneficial effects: by arranging the wind furnace body, the left end cover, the air outlet, the right end cover, the air inlet pipe, the blower, the thermal insulation cotton, the inner tube, the inner tank, the coil ring, the upper air duct, the right air duct, the connecting line and the oscillating power supply mechanism, the oscillating power supply mechanism energizes the coil to make the coil ring generate an alternating magnetic field, so that the inner tube and the inner tank are heated, when the blower supplies air to the wind furnace body through the air inlet pipe, it is preheated through the upper air duct and then heated again through the right air duct and the inside of the inner tank, so that the air heats up faster, the thermal utilization rate of the device is improved, and energy is saved.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1This is a front view of a coil-type electromagnetic double-sided heating energy-saving hot air furnace of the utility model;

[0016] Figure 2 It is a longitudinal section of the furnace body of a coil-type electromagnetic double-sided heating energy-saving hot blast furnace of the utility model;

[0017] Figure 3 This is a coil structure diagram of a coil-type electromagnetic double-sided heating energy-saving hot air furnace of the utility model;

[0018] Figure 4 The utility model is a cross-sectional view of a furnace body of a coil-type electromagnetic double-sided heating energy-saving hot blast furnace.

[0019] Legend:

[0020] 1. Blower body; 2. Left end cover; 3. Air outlet; 4. Right end cover; 5. Air inlet pipe; 6. Blower; 7. Insulation cotton; 8. Inner pipe; 9. Inner tank; 10. Coil ring; 11. Upper air duct; 12. Right air duct; 13. Connecting wire; 14. Oscillation power supply mechanism. DETAILED DESCRIPTION

[0021] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0022] Reference Figure 1-4The utility model embodiment is a coil-type electromagnetic double-sided heating energy-saving hot air furnace, which includes: a furnace body 1, a left end cover 2 is fixedly connected to the left side wall of the furnace body 1, and an air outlet 3 is arranged on the left end cover 2, and a right end cover 4 is fixedly connected to the right side wall of the furnace body 1, an air inlet pipe 5 is fixedly connected to the circumferential surface of the furnace body 1, and a blower 6 is fixedly connected to the top of the air inlet pipe 5, and a heat preservation cotton 7 is fixedly connected to the inner circumferential surface of the furnace body 1 to retain the internal heat inside the furnace body 1, and an inner tube 8 is fixedly connected to the inner circumferential surface of the heat preservation cotton 7, and the bottom of the air inlet pipe 5 passes through the furnace body 1 and the heat preservation cotton 7 and is fixedly connected to the inner tube 8, and an inner liner 9 is arranged inside the inner tube 8, and the inner tube 8 and the inner liner 9 are all made of stainless steel. When the coil ring 10 generates an alternating magnetic field under the action of the oscillating power supply mechanism 14, the changing magnetic field causes the inner tank 9 and the inner tube 8 to heat up, so that the passing air is fully heated. The left side wall of the inner tank 9 is fixedly connected to the left end cover 2, and the coil ring 10 is fixedly connected to the circumferential surface of the inner tank 9. An upper air duct 11 is formed between the outer side of the coil ring 10 and the inner wall of the inner tube 8. A right air duct 12 is formed between the right end of the inner tank 9 and the left side of the right end cover 4. Connecting wires 13 are fixedly connected to both ends of the coil ring 10. The number of connecting wires 13 is set to two. The connecting wires 13 are fixedly connected to the oscillating power supply mechanism 14 to provide high-frequency alternating current to enable the coil ring 10 to generate an alternating magnetic field.

[0023] The air inlet duct 5, the upper air duct 11, the right air duct 12, the inner tank 9 and the air outlet 3 are all interconnected.

[0024] Working principle: The oscillating power supply mechanism 14 energizes the coil 10, causing the coil 10 to generate an alternating magnetic field, thereby heating the inner tube 8 and the inner tank 9. When the blower 6 supplies air to the furnace body 1 through the air inlet pipe 5, the air is preheated through the upper air duct 11 between the inner tube 8 and the inner tank 9, and then heated again through the right air duct 12 and the inside of the inner tank 9, thereby heating the air faster.

[0025] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A coil-type electromagnetic double-sided heating energy-saving hot air furnace, comprising: The wind furnace body (1) is characterized in that a left end cover (2) is fixedly connected to the left side wall of the wind furnace body (1), and an air outlet (3) is arranged on the left end cover (2); a right end cover (4) is fixedly connected to the right side wall of the wind furnace body (1); an air inlet pipe (5) is fixedly connected to the circumferential surface of the wind furnace body (1); a blower (6) is fixedly connected to the top of the air inlet pipe (5); a heat insulation cotton (7) is fixedly connected to the inner circumferential surface of the wind furnace body (1); and the inner circumferential surface of the heat insulation cotton (7) is fixedly connected to the inner circumferential surface of the heat insulation cotton (7). An inner tube (8) is fixedly connected to the upper portion, an inner liner (9) is arranged inside the inner tube (8), a coil ring (10) is fixedly connected to the circumferential surface of the inner liner (9), an upper air duct (11) is formed between the outer side of the coil ring (10) and the inner wall of the inner tube (8), a right air duct (12) is formed between the right end of the inner liner (9) and the left side of the right end cover (4), and connecting wires (13) are fixedly connected to the two ends of the coil ring (10), and the connecting wires (13) are fixedly connected to an oscillation power supply mechanism (14).

2. A coil-type electromagnetic double-sided heating energy-saving hot air stove according to claim 1, characterized in that: The left side wall of the inner container (9) is fixedly connected to the left end cover (2).

3. The coil-type electromagnetic double-sided heating energy-saving hot air stove according to claim 1, characterized in that: The bottom of the air inlet pipe (5) passes through the air furnace body (1) and the thermal insulation cotton (7) and is fixedly connected to the inner pipe (8).

4. The coil-type electromagnetic double-sided heating energy-saving hot air stove according to claim 1, characterized in that: The air inlet pipe (5), the upper air duct (11), the right air duct (12), the inner liner (9) and the air outlet (3) are all interconnected.

5. The coil-type electromagnetic double-sided heating energy-saving hot air stove according to claim 1, characterized in that: The number of the connecting lines (13) is two.

6. The coil-type electromagnetic double-sided heating energy-saving hot air stove according to claim 1, characterized in that: The inner tube (8) and the inner liner (9) are both made of stainless steel.

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