KR20220103471A - electric hot blast heater - Google Patents

Abstract

The present invention relates to an electric hot blast heater, and specifically, to the technology of continuously blowing heated internal air of a plurality of pipes through a blower to an indoor place, wherein the internal air is heated by applying power to the blower and an electric heater, which is a cartridge heater rod, after placing the length of the electric heater which is heated by application of electricity to be accommodated in the longitudinal direction of the plurality of pipes and disposing the blower on one side of the plurality of pipes.

Description

Electric hot blast heater

The present invention relates to an electric heater warmer, and more particularly, to accommodate the longitudinal direction of an electric heater that is heated when electricity is applied to each of a plurality of pipes in the longitudinal direction, and to place the blower on one side of the plurality of pipes, and then to the blower and the When power is applied to an electric heater (corresponding to a cartridge heater rod), the air inside the plurality of pipes is heated.

Conventional electric heaters have the advantages of being inexpensive and easily supplied with heat sources compared to other heat sources, and generating relatively few air pollutants. The indoor temperature is controlled by heating the air using Joul heating, which is generated by passing current directly to the resistor, such as a ceramic heating element or a carbon heating element using the resistance of carbon. The blow applies electricity to a heating wire in the form of a coil to generate heat by electrical resistance, and a general problem that such a heating part has poor thermal efficiency is excessive power consumption is pointed out. The technology of Publication No. 10-2017-0035201 is disclosed as an amount to solve these problems.

Looking at the configuration, a heating part 300 is formed inside the body 220, and in the case of the heating part 300, as shown in FIGS. 220), fixed holes 311 are arranged at equal intervals on the surface of the heat dissipation panel 310 and are perforated, and the heating elements 320 are spaced apart and fixed with the fixing holes 311, A heat dissipation rod 330 is fixed between the heating elements 320 .

Here, the heating element 320 is applied by adopting a CG heater.

Looking at the embodiment, the outside air supplied from the blower fan 400 comes in contact with the outside air guide plate 500, and then the outside air guide plate 500 is in a state in which direct contact is not made with the unit units that form the first heat and heat dissipation. After heat exchange with the heat transferred to It is said that it will increase

330; heat sink, 330-1; Semi-circular arc heat sink, 330-11; groove 330-2; Concave-convex heat dissipation rod, 330-21; Concave-convex, 330-3; hollow pipe heat sink, 500; The outdoor air guide plates block the blowing wind of the blower fan 400, and the heating element (CG heater rod) being heated to a high temperature does not smoothly heat exchange with air, so a load is generated. As a result, the lifespan is shortened and the efficiency is reduced. Technically, electric heaters such as CG heaters have a short lifespan and lower thermal efficiency if the high temperature generated by the electric heater is maintained.

2 Cases In general, agricultural hot air or agricultural hot air fans are used to keep the internal temperature of a greenhouse or greenhouse constant for the smooth life of crops.

Such an agricultural hot air blower or hot air blower maintains a constant internal temperature of the plastic house or greenhouse by blowing hot air or hot air heated outside air into the plastic house or greenhouse.

For example, "agricultural electric hot air fan" and "multi-stage hot air fan" are disclosed in Korean Patent Registration No. 10-0952564 and Korean Patent No. 10-0800306.

The 'agricultural electric hot air fan', the enclosure 20 and; Discharge ports (30b, 40b) arranged side by side on the lower side of the enclosure (20) and parallel to the suction ports (30a, 40a) disposed in opposite directions inside the enclosure (20) at a distance (G) away from each other a pair of blowers (30, 40) each having; an inner row box 50 installed at the outlet (30b, 40b) side of the pair of blowers (30, 40); A plurality of electric heating elements (60) arranged in a horizontal row in the inner row box (50) and stacked to be misaligned; It is installed on the upper portion of the inner hot box 50 to face each other and includes hot air discharge pipes 60 and 62 protruding out of the enclosure 20 .

And the 'multi-stage hot air blower' is installed in multiple stages so that a heat exchange plate 4 formed by welding and bonding a plurality of square pipes 4a and a front end pipe 4b in the main body case 2 to be vertically spaced apart, multistage heat exchange The square pipes 4a of the plate 4 are configured to communicate in a zigzag manner through the communication parts 16 to 16e on both sides of the body case 2, and the combustion chamber 8 in which the burner 10 is installed in the lowest communication part 16a. and the external gas discharge pipe 18 is connected to the uppermost communication part 16e, and the external air A forcedly supplied by the blower 20 installed in the body case 2 is supplied to the heat exchange plate 4 ) is heat-exchanged while passing through the heat exchange passage (P) between the body case (2) is configured to be discharged as warm air through the air outlet (22).

However, in the conventional agricultural electric heater or hot air blower, in order to supply high-voltage electricity to the electric heating element 60 , a separate high-voltage electric facility and construction of an electric facility for it were required inside the plastic house or greenhouse. Therefore, there was a problem in that the initial investment cost was too much to equip a greenhouse or greenhouse for agricultural heating.

In addition, since the conventional multi-stage hot air blower uses the burner 10, an electric facility is not required, but piping such as a separate pipe or duct is required to supply hot air to the internal space of a plastic house or greenhouse. That is, it is necessary to have a piping configuration in which the plastic pipe P is connected to the air outlet 22, respectively, and the hot air sent to the air outlet 22 is supplied to a predetermined space.

Therefore, the conventional tube heater for agriculture requires a separate duct pipe to be installed when installing the heater in a plastic house or greenhouse, so the structure is complicated and the cost is increased.

There is provided a tube heater for agriculture of conventional publication No. 10-2017-0135123 No. 10-2017-0135123.

Its configuration is as follows.

An agricultural tube warmer according to the present invention is an agricultural tube warmer for supplying hot air to an internal space of a plastic house or a greenhouse, comprising: a box-shaped case having an open front and back and forming an internal space of a certain size;

a combustor for burning a predetermined oil and ejecting a flame and high-temperature combustion gas to a combustion tube installed in the inner space of the case; a heat sink installed in a zigzag manner in the inner space of the case and dissipating heat to the outside while moving the high-temperature combustion gas generated in the combustion tube upward;

A blower installed on the open front surface of the case and sucking outside air into the case to make contact with the heat dissipation tube, and blows hot air whose temperature is increased by heat exchange with the heat dissipation tube to the outside of the case Wow;

a reflector installed on the open rear surface of the case to allow the external air sucked by the blower to pass freely but to block the heat radiated from the heat sink from being emitted to the outside of the case;

and a gas outlet installed at the rear end of the heat dissipation tube to discharge combustion gas into the inner space of the case.

And the filter may be made of a metal mesh. The metal mesh installed at the rear end of the combustion pipe 27 is secondarily purified and discharged of harmful substances such as nitrogen oxides (NOх) and volatile organic compounds (VOC) contained in the combustion gas, and also contains volatile organic compounds (VOC).

It can reduce odor (oil smell) and noise.

Even if the combustion gas is purified through the filter in this way, damage from the combustion gas cannot be avoided when used indoors, which is the user's home.

As devised to solve the conventional problems as described above, the present application accommodates the longitudinal direction of an electric heater that is heated when electricity is applied to each of a plurality of pipes in the longitudinal direction, and after positioning the blower on one side of the plurality of pipes, the When power is applied to the blower and the electric heater (corresponding to the cartridge heater rod), the air inside the plurality of pipes is heated. An object of the present invention is to provide a technique for continuously blowing the heated internal air through the blower to send it into the room.

As devised to achieve the above problems,

As shown in the accompanying drawings, the present application includes a first body 10 formed in a rectangular shape and a partition plate 20 positioned inside the body 10 to form a space 30 in both directions of the body 10, 2 space parts (31, 32) and;

One side 40a of the plurality of pipes 40 is connected to the second space 32 among the first and second spaces 31 and 32 by passing through the partition plate 20 at a predetermined distance from each other. And the other side (40b) of the plurality of pipes (40) are connected by passing through the wall surface (10a) of the body 10 at a predetermined distance from each other:

A plurality of electric heater rods 50 each having a non-heat section 50a and a heating section 50b are accommodated in the longitudinal direction of the plurality of pipes 40, respectively.

The heating section 50b of the electric heater rod 50 is long accommodated in the plurality of pipes 40 and

the non-heat section (50a) is located in the first space (31);

In a state in which the blower (60) for discharging external air to the first space (31) is fixed to the body (10),

When power is applied to the electric heater rod (corresponding to the cartridge heater rod), the space between the circumference of the heating section 50b and the inner wall of the plurality of pipes 40 is heated,

When power is applied to the blower 60, the discharge wind of the blower 60 passes through the non-heat section 50a of the electric heater rod 50, and the plurality of pipes 40 connected to the partition plate 20. It flows into one side (40a), passes through the space between the circumference of the heating section (50b) and the plurality of pipes (40), and is discharged into the room through the other side (b) of the plurality of pipes (40).

As described above, the present application (electric warmer) accommodates the longitudinal direction of the electric heater that is heated when electricity is applied to each of the longitudinal directions inside the plurality of pipes, and after placing the blower on one side of the plurality of pipes, the blower and the electric heater ( By applying power to the cartridge heater rod), the air inside the plurality of pipes is heated.

As a result of individually blowing the inside of a plurality of pipes, the heat of the electric heater is lowered individually. As a result, a load (electrical resistance) is generated in the electric heater, but compared with the prior art described above, no load is generated, so the lifespan of the electric heater is long and the thermal efficiency is high, that is, the power consumption is lowered because no load is generated.

The above-mentioned effects are further revealed in the specific content.

1 is a perspective view of an electric heater hot air blower of the present invention viewed from different directions;
2 is a perspective view of the inside of the electric heater warmer of the present invention viewed from different directions;
3 and 4 are perspective views of an enlarged state so that the important configuration of the electric heater warmer of the present invention can be easily understood;

1 to 5, the configuration will be reviewed again and an embodiment thereof will be described.

First, in general, the electric heater rod 50 is manufactured so that a heating section 50b and a non-heat section 50a are formed.

For example, to accommodate the coil electric heating wire in the form of a coil inside the stainless pipe, the coil electric heating wire is accommodated at a predetermined depth without accommodating the coil electric heating wire in the entire length of the stainless pipe, and power to the coil electric heating wire at a predetermined depth A wire (which may be part of a coiled electric hot wire) that supplies the Among the electric heater rods manufactured in this way, the space in which the coil electric heating wire is accommodated is called the heating section, and the space in which the electric wire is accommodated is called the non-heating section.

In general, the non-heat section inevitably forms a length of 30 mm to 50 mm.

In the present invention, the specific heat section corresponds to 300 mm to 500 mm.

The first and second space parts 31, in which the body 10 formed in a rectangular shape and the partition plate 20 are positioned inside the body 10 to form the space part 30 in both directions of the body 10, 32) and;

One side 40a of the plurality of pipes 40 is connected to the second space 32 among the first and second spaces 31 and 32 by passing through the partition plate 20 at a predetermined distance from each other. And the other side (40b) of the plurality of pipes (40) are connected by passing through the wall surface (10a) of the body 10 at a predetermined distance from each other:

A plurality of electric heater rods 50 each having a non-heat section 50a and a heating section 50b are accommodated in the longitudinal direction of the plurality of pipes 40, respectively.

The heating section (50b) of the electric heater rod (50) is accommodated in the plurality of pipes (40) long,

the non-heat section (50a) is located in the first space (31);

In a state in which the blower (60) for discharging external air to the first space (31) is fixed to the body (10),

When power is applied to the electric heater rod (corresponding to the cartridge heater rod), the space between the circumference of the heating section 50b and the inner wall of the plurality of pipes 40 is heated,

When power is applied to the blower 60, the discharge wind of the blower 60 passes through the non-heat section 50a of the electric heater rod 50, and the plurality of pipes 40 connected to the partition plate 20. It flows into one side (40a), passes through the space between the circumference of the heating section (50b) and the plurality of pipes (40), and is discharged into the room through the other side (b) of the plurality of pipes (40).

In the present invention, the blowing wind of the blower 60 moves from one side 40a of the plurality of pipes 40 to the other side 40b of the plurality of pipes 40 and is discharged to the outside, and the wind of the blower 60 is It is configured such that the plurality of pipes 40 are introduced in a straight direction, move in a straight line, and discharged in a straight direction.

The reason for doing this is that the blower 60 does not receive the resistance of the discharge wind, so that the air flows smoothly, so that the heat generated in the heating section 50b of the electric heater rod 50 is quickly discharged to the outside.

As a result, the electric heater rod 50 receives less electrical resistance, thereby extending the life of the electric heater rod and reducing power consumption.

In the plurality of pipes (40), the non-heat section (50a) of the plurality of electric heater rods (50) is exposed to the first space (31), so that the air discharged from the blower (60) is dispersed in the first space (31). It is configured such that the latent heat of the non-heat section 50a is discharged in the longitudinal direction of the plurality of pipes 40 by the wind.

The latent heat is, when heated in the heating section of the electric heater rod 50, the temperature is transferred to the non-heat section. This is latent heat.

Looking at the embodiment of the configuration,

The body 10 of the present invention may be formed in a rectangular shape or may be formed in various ways at least in part in terms of design.

The first and second spaces 31 and 32 were formed by blocking the inside of the body 10 with a partition plate 20, but the first and second spaces 31 and 32 were formed by putting the two large and small bodies 10 against each other. ) can be formed.

And a plurality of pipes 40 may be installed in the first space 31 .

The plurality of electric heater rods 40 of the present invention are fixed to the wall of the body 10 by screwing, and then passed through the first space 31 and received into the plurality of pipes 40, the non-heat section 50a) is located in the first space 31 and the heating section 50b is accommodated in the plurality of pipes 40, respectively.

After that, when power is applied to the electric heater rod 50, high heat is generated in the heating section 50b of the electric heater rod 50, and the heat generated in the heating section 50b is transferred to the non-heat section 50a, but heating Compared to the section 50b, the temperature is low.

The temperature of the non-heating section 50a is lowered by the blowing wind from the blower, so that the internal heating wire does not receive more electrical resistance.

In the present invention, the heating section 50b of the plurality of electric heater rods 50 is deeply accommodated in the longitudinal direction of the plurality of pipes 40', but a space is formed between the heating section 50a and the pipe 40'. The wind of the blower 60 from one side (40a) of the plurality of pipes (40)

To move to the other side (40b).

For this reason, when electricity is applied to the blower 60, the air discharged from the blower 60 is dispersed in the first space part 31 and passes through one side 40a inside the plurality of pipes 40 and the other side ( It moves to 40b) and is discharged to the heating place.

The first space part 31 serves to distribute the air blown out of the blower 60 . That is, it is a divider.

A plurality of through-holes g are separately formed in the partition plate 20 to which one side 40a of the plurality of pipes 40 are connected and the wall 10a to which the other side 40b is connected to the plurality of pipes 40, respectively. Thus, the blowing wind of the blower 60 moves between the outer circumferences of the plurality of pipes 40 and is discharged to the outside.

By forming the through hole g in this way, the discharge wind of the blower 60 passes through the first space 31 and flows into the through hole g of the partition plate 20 between the plurality of pipes 40 . It is discharged to the outside through the through hole (g) formed in the wall through the

This has the result of sending the internal air of the plurality of pipes 40 and the external air of the plurality of pipes 40 to the heating place. As a result, heat generated from the electric heater rod 50 is quickly discharged to the outside, so that the electric heater rod 50 is minimized (corresponding to electrical resistance).

In particular, in the present invention, by accommodating a plurality of electric heater rods 50 in a plurality of pipes 40, respectively, the result of cooling the electric heater rod 50 with the wind of the blower 60 is high in the electric heater rod 50. Because it cools before high heat is generated, electrical resistance is minimized.

This saves energy and extends the life of the electric heater rod.

In the longitudinal direction of the plurality of pipes 40, a spacer (h) for locating the electric heater rod 40 in the center of the pipe 40' is formed so that the electric heater rod 50 is located in the center of the pipe 40'. configuration to be located.

The reason for doing this is to evenly move the wind of the blower 60 between the electric heater rod 50 and the inner wall of the pipe.

10: body
20: partition plate
30: space part
31: first space part
32: second space part
40 : pipe
50: electric heater rod
50a: specific heat section
50b: heating section
60: blower

Claims (1)

The body 10 formed in a rectangular shape and the first and second space parts 31 and 32 in which the partition plate 20 is positioned inside the body 10 to form the space part 30 in both directions of the body 10 Wow;

One side 40a of the plurality of pipes 40 is connected to the second space 32 among the first and second spaces 31 and 32 by passing through the partition plate 20 at a predetermined distance from each other. And the other side (40b) of the plurality of pipes (40) are connected by passing through the wall surface (10a) of the body 10 at a predetermined distance from each other:
A plurality of electric heater rods 50 each having a non-heat section 50a and a heating section 50b are accommodated in the longitudinal direction of the plurality of pipes 40, respectively.

The heating section 50b of the electric heater rod 50 is long accommodated in the plurality of pipes 40 and
The non-heat section (50a) is located in the first space (31);
In a state in which the blower (60) for discharging external air to the first space (31) is fixed to the body (10),

When power is applied to the electric heater rod 50, the space between the circumference of the heating section 50b and the inner wall of the plurality of pipes 40 is heated,

When power is applied to the blower 60, the discharge wind of the blower 60 passes through the non-heat section 50a of the electric heater rod 50, and the plurality of pipes 40 connected to the partition plate 20. It flows into one side (40a), passes through the space between the circumference of the heating section (50b) and the plurality of pipes (40), and is discharged into the room through the other side (b) of the plurality of pipes (40) electric heater fan.

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