KR100946362B1 - Heat exchanger of automatic wash type enabling elimination of dust - Google Patents

Abstract

PURPOSE: An automatic cleaning heat exchanger is provided to increase the exchange efficiency of supply water and the waste gas by removing the foreign material including the waste air to the air. CONSTITUTION: An automatic cleaning heat exchanger comprises a waste gas input unit(10), a cleaning water feed unit and heat exchangers(20,30,40). The waste gas input unit receives the waste gas of the high temperature. The cleaning water feed unit supplies the cleaning water to the waste gas input unit. The cleaning water feed unit removes the foreign material included in the waste gas with the cleaning water. The heat exchanging unit is laminated on top of the waste gas input unit. The heat exchanging unit is provided with the waste gas which the foreign material is removed. The heat exchanging unit retrieves the heat from the waste gas and heats the supply water.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an automatic washing type heat exchanger capable of removing dust,

More particularly, the present invention relates to a self-cleaning type heat exchanger capable of dust removal, and more particularly, to a heat exchanger in which a waste generated in a boiler or the like is heat-exchanged between a vertically stacked waste inflow portion and first to third heat exchanging portions, (Hereinafter referred to as " foreign matter "), thereby increasing the heat exchange efficiency of the waste, and reducing the amount of air pollution.

Generally, the agricultural and seawater drier uses fuel such as oil or gas to heat the heat exchanger by the combustion heat of the burner to obtain the heating water by the primary heat exchange and selectively obtains the hot water by performing the secondary heat exchange with the external direct water will be.

In most of the heat exchangers used in such boilers, mainly, the heating water is heated by the direct heat of the burner, and the hot water is indirectly heated by the heating water. In such a heat exchanger, And is widely used with various structures.

Many heat exchangers have been disclosed in which the waste heat of a gas to be exhausted is recovered to heat the supplied water. However, such a heat exchanger has a problem in that it is not easy to manufacture because of its complicated internal structure in order to maximize heat exchange performance and heat exchange efficiency .

In order to solve such a problem, Patent No. 0701577 discloses a condensed heat exchanger.

However, the conventional No. 0701577 condensed heat exchanger performs heat exchange only by indirect contact between the filling water and the disposal, resulting in a problem of low heat exchange efficiency. Therefore, it is difficult to produce hot water at a temperature for use in drying or supplying water for indoor or agricultural products. Further, in order to produce hot water at an appropriate temperature, there is a problem in that the equipment becomes large or power consumption increases.

In addition, scale can be accumulated on the inner wall of the pipe through which the waste flows, since foreign matters contained in the purging can not be removed. Such a scale greatly reduces the heat exchange efficiency because it prevents heat exchange with the waste.

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide an apparatus and a method for producing hot water by using hot waste generated from a boiler or the like as a heat source, And an object of the present invention is to provide an automatic washing type heat exchanger capable of removing dust that can increase efficiency.

In order to accomplish the above object, the present invention provides an automatic washing type heat exchanger capable of removing dust, comprising: a waste inflow portion into which high temperature waste is introduced; A rinsing water supply unit for supplying rinsing water to the waste inlet and removing the foreign substances contained in the rinsing by the rinsing water; And a heat exchange unit which is stacked on the upper portion of the waste inflow portion and receives the waste removed from the waste by the washing water while flowing through the waste inflow portion and collects heat from the waste to heat the supplied water.

According to the automatic washing type heat exchanger capable of dust removal according to the present invention, the waste generated in the boiler or the like is heat-exchanged with the feed water while passing through the vertically stacked waste inflow portion and the first to third heat exchange portions, As the efficiency of heat exchange between the waste water and the feed water increases, the waste can be discharged quickly and the hot water can be produced. In addition, from the standpoint of the atmosphere, low-temperature waste is discharged into the atmosphere, which is effective in preventing warming.

As shown in FIG. 1, the automatic washing type heat exchanger 100 capable of dust removal according to the present invention includes a waste inlet 10 into which high-temperature waste is introduced; And first to third heat exchanging units (20, 30, 40) for exchanging the waste introduced through the waste inlet (10) with the supply water to supply high temperature supply water.

The waste inlet (10) is supplied with high-temperature waste generated in a boiler or the like, and is connected to the boiler through a pipe while having a tubular structure.

The waste generated in the boiler or the like contains foreign matter, and this foreign substance lowers the heat exchange efficiency of the feed water, so it is filtered before being supplied to the first heat exchange unit 20. [

To this end, the present invention supplies cleansing water to the waste inlet 10 through the cleansing water supply unit 11. That is, the waste and washing water are supplied together into the waste inlet 10, and the foreign substances contained in the waste are removed by the washing water.

The rinse water supply unit 11 is composed of a rinse water nozzle 11a for spraying rinse water and a rinse water tank 11b for supplying rinse water to the rinse water nozzle 11a. The washing water nozzle 11a sprays the washing water toward the upper first heat exchanging part 20 and the washing water tank 11b is disposed below the washing water nozzle 11a and is sprayed from the washing water nozzle 11a And the washing water falling down after it is stored can be stored and re-supplied.

The waste inlet 10 preferably has a cylindrical structure in which the inside and the outside of the waste inlet 10 are sealed so that waste and washing water coexist together and the waste can be cleaned by the washing water.

The first to third heat exchanging units 20, 30 and 30 heat exchange the waste water and the feed water, respectively, and are stacked in order from the waste inflow unit 10 to the upper side. The supply water is supplied to the third heat exchanging unit 40 - Exchanges heat with the first to third heat exchanging parts (20, 30, 40) while passing through the second heat exchanging part (30) - the first heat exchanging part (20).

As shown in FIGS. 1 and 2, the first heat exchanging unit 20 includes a first case 21 having a tubular structure having a space for circulating supply water therein, a first case 21 having a tubular shape with both upper and lower ends opened, A plurality of first waste disposal guide pipes 22 installed at predetermined intervals in the interior of the first case 21 and a heat exchange member 23 inserted into the first disposal guide pipe 23 to guide the supplied water into the first case 21 And first supply water circulating units (24-1, 24-2) for circulating the first disposal guide pipe (23) and supplying the heat exchanged waste to the supply source.

The heat exchange member 23 is not necessarily applied, but is selectively applied as needed.

The first case 21 is, for example, a cylindrical shape, and the upper and lower finishing plates 21a and 21b are formed with holes communicating with the upper and lower ends of the first discarded guide pipe 23, respectively.

The upper and lower finishing plates 21a and 21b may be detachably coupled to the circular body 21c for maintenance of the first disposal guide pipe 22 and the like.

The first disposal guide pipe 22 is a tubular structure having upper and lower portions communicating with each other to form a disposal channel for heat exchange with the waste water flowing into the waste inlet portion 10, 21 to the upper and lower finish plates 21a, 21b, respectively.

The fixing structure of the first discarded guide pipe 22 and the finishing plates 21a and 21b may be formed by various methods such as welding and fitting.

Since the heat exchange member 23 is twisted in a helical shape, the flow path for disposal through the first disposal guide pipe 22 can be lengthened to improve the heat exchange efficiency. In addition, since the water or the foreign matter has a linearity, it can not rise due to the curved portion of the heat exchange member 23, and is thus removed from the waste.

The first supply water circulating units 24-1 and 24-2 communicate with the inner space of the first case 21 and communicate with the second heat exchanging unit 30 and the supply source respectively and pass through the second heat exchanging unit 30 Supply water is supplied into the first case (21), and waste water and heat-exchanged water flowing along the first disposal guide pipe (22) are supplied to the supply source.

As shown in FIGS. 1 and 3, the second heat exchanging part 30 includes a second case 31 having a tubular structure having a space for circulating the supply water therein, a second case 31 inserted into the second case 31, A second disposal guide pipe 32 for guiding the disposal flow discharged from the first disposal guide pipe 22 of the heat exchange unit 20 and a second disposal guide pipe 32 for guiding the flow of disposal discharged from the first disposal guide pipe 22 of the heat exchange unit 20, A water supply section (not shown) for supplying water to the plate 33 and the bubble plate 33 and a supply water discharged from the third heat exchanging section 40 are passed through the inside of the second case 31, And a second supply water circulating unit (34-1.34-2) for supplying the second supply water to the first supply unit (20).

The second case 31 is, for example, a cylindrical shape and may not be specifically shown in the drawings, but may be composed of a body and upper and lower finish plates, like the first case 21, A hole communicating with a lower end portion of the pipe 32 is formed, and a hole communicating with the third heat exchanging portion 40 is formed on the upper end finishing plate.

The body of the second case 31 and the finishing plate may be detachably coupled.

The upper and lower portions of the second disposal guide pipe 32 are installed so as to communicate with the bubble plate 33 and the first disposal guide pipe 22 of the first heat exchange unit 20, And a first bubble hole 32a having a cross sectional area smaller than that of the first disposal guide pipe 22 is provided at a lower portion communicating with the first disposal guide pipe 22 to guide bubbling.

The first bubble hole 32a may have a circular shape and a large number of, for example, four extending portions may be formed at the peripheral portion thereof to maximize the bubbling effect by spreading water droplets when passing through the first bubble hole 32a. In other words, if the first bubble hole 32a has a circular cross-section, a cylindrical water column is formed, but water droplets can be spread and enlarged because they have the extended portion.

The waste water passing through the second waste disposal guide pipe (32) passes through the second waste guide pipes (32), and heat exchange is performed between the waste water and the supply water.

The bubble plate 33 is provided with a plurality of second bubble holes 33a and has a tubular structure capable of containing water and is installed on the upper portion of the second waste guide pipe 32. At this time, the second bubble hole (33a) communicates with the upper opening of the second waste guide pipe (32).

The bubble plate 33 is hermetically and watertightly mounted inside the second case 31 so that the waste does not leak to the lower portion of the bubble plate 33 and does not flow back to the upper portion of the bubble plate 33.

The water supply unit includes a water level sensor and a controller to fill a predetermined amount of water into the bubble plate 33. The water level sensor senses the level of water stored in the bubble plate 33 in real time through the water level sensor, To control the replenishment of water.

In addition, the bubble plate 33 includes an overflow pipe 35 so as to discharge foreign substances taken from the waste. The overflow pipe (35) is disposed such that the upper portion thereof is disposed inside the bubble plate (33) and the lower portion is in communication with the washing water tank (11b). Therefore, the supernatant and foreign matter at a higher level than the upper end of the overflow pipe 35 are stored in the washing water tank 11b after overflowing through the upper inlet of the overflow pipe 35. [

A plurality of overflow pipes 50 are installed at regular intervals.

The washing water supplied to the bubble plate 33 can be supplied from the washing water tank 11b or the feed water line.

The second supply water circulation units 34-1 and 34-2 communicate with the inner space of the second case 21 and communicate with the third heat exchange unit 40 and the first heat exchange unit 20, respectively, The supply water that has passed through the first portion 40 is supplied to the inside of the second case 31 and the supply water that has been heat exchanged with the waste flowing along the second waste guide pipe 22 is supplied to the first heat exchanger 20. [

As shown in FIGS. 1 and 4, the third heat exchanging unit 40 includes a third case 41 having a cylindrical structure in which a space for supplying water flows therein, and which is stacked in fluid communication with the second heat exchanging unit 30, A third disposal guide pipe 42 and a third disposal guide pipe 41 inserted into the third case 41 and guiding the disposal flow passing through the second heat exchange unit 30, A heat exchange member 43 which is filled with water for removing waste, heat exchange and moisture, and third supply water circulation units 44-1 and 44-2 for circulating the supply water.

The third case 41 may be composed of, for example, a cylindrical body 41a and upper and lower finish plates 41b and 41c covering upper and lower portions of the body 41a. The upper finishing plate 41b may be detachably coupled to the body so as to replace the heat exchange member 43 for both the water removal.

The third disposal guide pipe 42 is a pipe for guiding the disposal flow supplied from the bubble plate 33 of the second heat exchanging unit 30. The upper and lower portions of the third disposal guide pipe 42 are connected to the upper and lower finish plates 41b, 41c.

The heat exchange member 43, which is combined with the water removal member 43, is filled in the third disposal guide pipe 42 to perform heat exchange with the feed water, and removes moisture contained in the waste. And a heat exchange member of a heat exchanger.

The third supply water circulation pipes 44-1 and 44-2 guide the supply water to the inside of the third case 41 and perform heat exchange with the heat exchange member 43, To the second heat exchanger (30).

The waste disposal unit 10 and the first to third heat exchanging units 20, 30 and 40 are stacked from the lower part to the upper part, and flanges are formed at the opposite ends, respectively, and fasteners are fastened to the flanges. .

Since the waste inlet 10 and the first to third heat exchange units 20, 30 and 40 are in contact with the waste water at a high temperature and the water to be supplied, they are made of a material resistant to heat and corrosion.

In the drawing, reference numeral 50 denotes a blowing fan for controlling blowing and bubbling forcibly disposal. That is, the speed of disposal, the height of bubbling, and the like can be adjusted by controlling the blowing force of the blowing fan 50.

The operation of the automatic washing type heat exchanger capable of dust removal according to the present invention is as follows.

First, the waste generated in the boiler flows through the waste inlet 10 - the first heat exchanger 20 - the second heat exchanger 30 - the third heat exchanger 40, and the supplied water flows through the third heat exchanger 40 ) - the second heat exchanger (30) - the first heat exchanger (20). In this process, the waste water and the feed water are heat-exchanged to discharge the lowered temperature waste in the atmosphere, and hot water can be produced.

Hereinafter, the heat exchange process between the disposal and the supply water will be described in detail.

The waste generated in the boiler or the like flows into the waste inlet 10 through the pipe. At this time, washing water is sprayed to the waste inflow part 10 through the washing water supply part 11.

The disposal and washing water are mixed with each other in the waste inlet 10, some foreign substances contained in the waste are collected by the washing water and fall together with the washing water, and the foreign matter is removed from the first heat exchange unit 20 And flows into the first disposal guide pipe (22). The cleansing water dropped in the cleansing water tank 11b can be supplied again to the cleansing water nozzle 11a and reused.

The waste introduced into the first disposal guide pipe 22 rises in the form of a vortex along the heat exchange member 23 when the heat exchange member 23 is applied and at this time the heat exchange member 23 is not a straight shape but a twisted shape Although the waste can flow along the curve of the heat exchange member 23, the water and the foreign matter as the particulate matter fall on the heat exchange member 23.

In the case where the heat exchange member 23 is not applied, some water adheres to the inner wall of the first disposal guide pipe 22 to form a water film. Accordingly, the foreign substances included in the disposal directly adhere to the inner wall of the first disposal guide pipe 22 to form no scale, and the moisture formed on the inner wall of the first disposal guide pipe 22 falls freely.

The waste heat-exchanged with the feed water while passing through the first heat exchange unit 20 is supplied to the second waste guide pipe 32 of the second heat exchange unit 30.

The waste heat exchanged with the feed water by the first heat exchange unit 20 performs heat exchange with the feed water flowing in the second heat exchange unit 20 while flowing along the second waste guide pipe 32.

At this time, in the course of the disposal through the first bubble hole 32a of the second disposal guide pipe 32, the sectional area of the first bubble hole 32a is narrowed, so that water is bubbled, .

Water droplets and waste bubbling while passing through the second disposal guide pipe 32 are supplied to the bubble plate 33 through the second bubble hole 33a.

During the bubbling process in the bubble plate 33, the water contained in the bubble plate 33 can not rise any more, and only the waste is raised. This is because the height of the bubbling and the discharge of the waste are controlled by adjusting the blowing fan 50.

When the water level of the water immersed in the bubble plate 33 becomes higher than the inlet of the overflow pipe 35, the upper water level is discharged through the overflow pipe 35. Since foreign substances are contained in the upper water, do.

The waste which has passed through the bubble plate 33 is supplied to the third waste guide pipe 42 of the third heat exchange unit 40.

The supply water introduced into the third heat exchange unit 40 passes through the pores between the heat exchange members 43 for removing moisture and exchanges heat with the heat exchange member 43 for removing moisture and the third heat exchange member 43 ) And heat exchanges. In the case where the heat exchange member 43 serving as a water removal unit is a rubble, the rubble is taken from the waste flowing through the third waste guide pipe 42 and transferred to the supply water.

Through the above process, the hot water is discharged from the first heat exchanging part 20 and the air with low temperature and no foreign substance is discharged from the exhaust side of the upper part of the third heat exchanging part 40.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a general view of an automatic washing type heat exchanger capable of dust removal according to the present invention; FIG.

2 is a configuration view of a first heat exchanger applied to an automatic washing type heat exchanger capable of dust removal according to the present invention.

3 is a configuration diagram of a second heat exchanger applied to an automatic washing-type heat exchanger capable of dust removal according to the present invention.

4 is a configuration diagram of a third heat exchanger applied to an automatic washing type heat exchanger capable of dust removal according to the present invention.

Description of the Related Art [0002]

10: waste inflow section, 11: washing water supply section

20, 30, 40: heat exchange unit, 21, 31, 41: case

22, 32, 42: disposal guide tube, 23: heat exchange member

33: bubble plate, 43: heat exchange member

Claims (9)

A waste inlet (10) into which high temperature waste is introduced; A rinse water supply unit (11) for supplying rinse water to the waste inlet and removing foreign substances contained in the rinse by the rinse water; And a heat exchange unit which is stacked on the upper portion of the waste inflow portion and receives the waste removed from the waste by the washing water while flowing through the waste inflow portion and heats the supplied water by recovering heat from the waste, The heat- A first heat exchanging part (20) for exchanging heat between the waste containing water and the feed water through the waste inflow part, and forming a water film in the waste flow path by moisture taken from the waste in the waste, A second heat exchanging part (30) for exchanging heat by bubbling the first heat exchanged waste through the first heat exchanging part, And a third heat exchanging part (40) for exchanging the waste having passed through the second heat exchanging part by a heat exchanging member for both water removal and heat exchange. The heat exchanger according to claim 1, A first case 21 having a tubular structure having a space for circulating the supply water therein, a plurality of first disposal guide pipes 22 having a tubular shape with both upper and lower ends opened and spaced apart from each other at a predetermined interval in the first case, And first supply water circulating units (24-1, 24-2) installed at two places of the first case for circulating the supply water discharged from the second heat exchanging unit to the inside of the first case and discharging it to the outside Wherein the dust-removing type automatic exchanger is a self-cleaning type heat exchanger capable of removing dust. [3] The apparatus according to claim 2, further comprising a heat exchange member (23) inserted into the first disposal guide pipe and guiding the waste introduced through the lower portion of the first disposal guide pipe to flow in a vortex shape, Removable automatic wash type heat exchanger. The heat exchanger according to claim 2 or 3, A second case 31 of a tubular structure having a space in which the supply water is circulated therein, a tubular tubular shape having both upper and lower ends opened, a first case 31 which is installed at a predetermined interval in the second case and which is discharged through the heat- A second disposal guide pipe (32) for supplying disposal, a second disposal guide pipe (32) formed at a lower end of the second disposal guide pipe and smaller than a cross sectional area of the first disposal guide pipe, for bubbling disposal and water supplied from the first disposal guide pipe A bubble hole 32a having a first bubble hole 32a and a second bubble hole 33a formed in a plate shape horizontally partitioning the second case and communicating with the second waste guide pipe, A water supply part for supplying water to the bubble plate, a supply part for supplying water to the bubble plate, a supply part for supplying water to the bubble plate, In the first supply water circulating part, The second supply water circulation unit (34-1,34-2) to the waste is the bubble plate capable of self-cleaning type dust removal, characterized in that the bubble by the heat exchanger, which comprises a so. An overflow pipe (35) is disposed in the bubble plate and has a lower end corresponding to the cleansing water supply unit to overflow the upper water contained in the bubble plate to the cleansing water supply unit. Wherein said dust removing means comprises: [5] The automatic washing type heat exchanger according to claim 4, wherein the first bubble hole has a circular shape and a plurality of extended portions are formed at the periphery thereof. The method of claim 4, The third heat exchanger comprises a third casing (41) of a tubular structure having a space for circulating the supply water therein, a first casing (41) having a tubular shape with both upper and lower ends open, A plurality of third disposal guide pipes (42) for receiving and guiding the bubbled waste by the bubble plate, a heat exchange member (43) for removing moisture and filling the space between the third disposal guide pipes, And a third supply water circulation unit (44-1, 44-2) for allowing the water to be supplied to the second supply water circulation unit of the second heat exchange unit after passing through the heat exchange member Automatic washing type heat exchanger. [5] The automatic washing type heat exchanger according to claim 4, wherein the first to third heat exchanging units are formed with flanges at the opposite ends thereof, and are assembled detachably by fastening the fasteners to the flanges. 2. The washing machine according to claim 1, wherein the washing water supply portion includes a washing water nozzle (11a) for spraying washing water, a washing water tank (11b) for storing washing water dropped after being sprayed by the washing water nozzle, (11b). ≪ RTI ID = 0.0 > 11. < / RTI >

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