KR100417538B1 - Waste water heat collector by using heat exchange way - Google Patents

Abstract

The present invention relates to the recovery of wastewater heat using the heat exchange method of wastewater heat, and in particular, the heat recovery of the wastewater heat can be made effectively and at the same time, it is configured to be easily installed and used without regard to the installation place, and to be durable and easy to manage. .

In order to achieve the above object, the present invention stacks the fresh water induction pipe 300 in which the drop hole 304 is formed in the main body 20 in multiple stages, so that the waste water passage 400 is formed therebetween, and the fresh water induction pipe ( The left and right diaphragms 30 and 40 and the fresh water guide guide plates 100 and 200 are configured so that the waste water containing heat is circulated from the top to the bottom, and the fresh water is circulated from the bottom to the cocurrent, countercurrent, and free fall heat exchange. The fresh water exchanged the heat of the waste water was heated.

Description

Waste water heat recovery system using heat exchange method of waste water heat {Waste water heat collector by using heat exchange way}

The present invention relates to a wastewater heat recovery device for producing hot water using wastewater heat to heat cold water to hot water using heat exchange means of wastewater heat, and in particular, by making the contact area between heat containing wastewater and fresh water to be heated as large as possible within the same volume. The waste water heat recovery rate is high and the natural gradient is installed regardless of the installation site. The height can be freely selected, and at the same time, for durability and easy maintenance.

In general, wastewater heat recoverers using heat exchange of wastewater heat have been provided with various types of products.

However, most of the wastewater heat recovery system using wastewater heat exchange method has a disadvantage in that it can not handle large-capacity wastewater of more than thousands of tons in various industries and low recovery efficiency of waste heat. The wastewater containing the wastewater or the fresh water flows were weak, and all of the waterways were formed in a welding method, and the wastewater heat recovery was formed in a sealed type.

The present invention is to configure the waste water heat recoverer for heating the cold water to the hot water by using the heat exchange method of the waste water heat in order to correct the various problems of the conventional, maximizing the heat exchange efficiency of the waste water heat and at the same time easy to install and durable and maintain It is intended to be easy to manage.

In order to achieve the above object, the present invention is configured to install a plurality of fresh water induction pipes in multiple stages to maintain a predetermined interval on the inner surface of the main body constituting the waste water heat recovery, so that the waste water passage between each fresh water induction pipe is configured, the fresh water induction pipe end portion The drop hole is configured to cross left and right.

The left and right end portions of the fresh water induction pipe composed of multiple stages in the main body are provided with a plate having long and short through holes, and the end of the fresh water induction pipe is inserted into the long and short through holes so that the waste water passage formed between the fresh water induction pipes is formed by the plates. Blocked but configured to be connected to each other through the drop hole.

The fresh water guide guide plate is installed on the outside of the left and right partition plate, one side of the fresh water guide guide plate to be partitioned in the longitudinal direction by the vertical plate, the compartment partitioned in the longitudinal direction is to make the vertical compartment in a zigzag by the horizontal plate again In addition, a plurality of horizontal plates are installed on the other fresh water guide guide plate so that the horizontal compartment is constructed.

Therefore, when the wastewater containing heat flows in through the wastewater inlet pipe formed on the upper side of the main body of the wastewater heat recoverer, the wastewater circulates down the zigzag through the wastewater passage and the dropping hole while transferring the wastewater heat to the fresh water induction pipe. It is discharged to the outside through the wastewater discharge pipe.

In addition, the fresh water introduced through the cold water inlet hole located at the bottom of the left fresh water guide plate, that is, the cold water is guided to the vertical and horizontal compartments composed of the fresh water passage formed in the fresh water guide pipe and the left and right fresh water guide guide plates, and circulates in a zigzag upward direction. Heated while exchanging the heated heat of the induction pipe, the heated hot water is discharged to the outside through the hot water outlet connection hole located at the top to complete the production of hot water.

As described above, the present invention maintains contact with as much area as possible while circulating the wastewater and fresh water contained in the same volume in a zig-zag to enhance the heat exchange efficiency, while simultaneously moving the wastewater downward while the fresh water is heated upward. To allow for more ideal heat exchange.

In constructing the fresh water induction pipe installed in the wastewater heat recovery machine of the present invention, the fresh water induction pipe is brought into close contact with a plurality of square pipes and then spot-welded in a spot welding manner, thereby not causing a problem of shortening of durability due to corrosion during use. .

In the practice of the present invention, the size of the wastewater heat recovery, that is, the length and width of the fresh water induction pipe and the number of layers to be installed can be installed according to the location and conditions of the industrial site to be installed.

In the present invention, to explain only the basic principle of the waste water heat recovery unit is shown based on the configuration of the five layers of the fresh water induction pipe.

In the process of using the wastewater heat recovery machine of the present invention, it is ideal to periodically pass fresh water through the wastewater passage to clean the debris contained in the wastewater.

1 is a perspective view of the waste water heat recovery to be provided in the present invention.

Figure 2 is a perspective view showing a part of the wastewater heat recovery device of the present invention incision.

Figure 3 is a perspective view of the diaphragm and fresh water guide plate configured on one side of the wastewater heat recovery device of the present invention.

4 is a perspective view of the diaphragm and fresh water guide plate configured on one side of the wastewater heat recovery device of the present invention.

5 is a state diagram of the fresh water induction pipe installed in the wastewater heat recovery device of the present invention.

6 is a flow diagram of the wastewater configured in the wastewater heat recovery device of the present invention.

7 is a flow diagram of fresh water constituted by the wastewater heat recovery device of the present invention.

8 is a fresh water flow chart of the first fresh water induction pipe portion installed in the waste water heat recovery device of the present invention.

9 is a fresh water flow chart of the second fresh water induction pipe portion installed in the waste water heat recovery device of the present invention.

10 is a fresh water flow diagram of the third fresh water induction pipe portion installed in the wastewater heat recovery device of the present invention.

11 is a fresh water flow chart of the fourth fresh water induction pipe portion installed in the waste water heat recovery device of the present invention.

12 is a fresh water flow diagram of the fifth fresh water induction pipe portion installed in the wastewater heat recovery device of the present invention.

<Description of the symbols for the main parts of the drawings>

(10)-waste water recovery (20)-body

(30) (40)-Plate (31) (32)-Through Hole

(100)-Left Fresh Water Guide Guide Plate (101)-First Cross Plate

(102)-Second Plate (103)-Third Plate

(104)-Fourth Plate (105)-Fifth Plate

(111)-First Horizontal Compartment (112)-Second Horizontal Compartment

(113)-Horizontal 3rd Room (114)-Horizontal 4th

(115)-Five Horizontal Compartments (200)-Right Water Guide Guide Plate

(201)-First Horizontal Plate (202)-Second Horizontal Plate

(203)-3rd Horizontal Plate (204)-4th Horizontal Plate

(205)-5th Horizontal Plate (206)-6th Horizontal Plate

(210)-Vertical Plate (211)-First Vertical Compartment

(212)-Number 2 Vertical Room (213)-Number 3 Vertical Room

(214)-Vertical Vertical Room (215)-Vertical Vertical Room

(216)-No. 6 vertical room (218)-Cold water inlet connector

(219)-Hot water outlet connector (220)-Cold water inlet pipe

(221)-Hot water discharge pipe (300)-Fresh water induction pipe

(301)-Central Pathway (302)-Square

(303)-Interval Retaining Square Bar (304)-Drophole

(400)-Wastewater passage (401)-Wastewater inflow pipe

(402)-Wastewater Discharge Pipe

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic perspective view of the wastewater heat recovery unit 10 to be provided in the present invention, and FIG. 2 is a perspective view of a portion of the cover constituting the wastewater heat recovery unit to be cut out to see the inside thereof, and FIGS. 3 and 4 are left and right fresh water. 6 and 12 are views illustrating flows of wastewater and fresh water containing heat, and their configurations will be described in more detail.

The main body 20 is configured in a rectangular cylindrical shape, but in the main body 20, the plurality of fresh water induction pipes 300 are stacked in multiple stages while maintaining a constant interval, so that the wastewater passage 400 therebetween. To form.

The fresh water induction pipe 300 is in close contact with a plurality of square pipe 302 formed with a fresh water passage 301 and then spot welded in a spot welding method, the gap between both ends in the width direction and the center to maintain the gap For installing the square bar 303, one end is to maintain a parallel state with the square tube body 302 formed with a fresh water passage 301, the other end is configured to be slightly shorter than the end of the square tube body 302 dropping hole 304 is formed.

The fresh water induction pipe 300 having the above-described configuration is stacked in multiple stages in the main body 20 as shown in FIG. 7, and the first fresh water induction pipe 300-1 is installed at the lowermost end thereof, and at regular intervals thereon, Two fresh water guide pipes (300-2), the third fresh water guide pipe (300-3), the fourth fresh water guide pipe (300-4) and the fifth fresh water guide pipe (300-5) The waste water passage 400 is formed between the upper and lower portions 300.

The wastewater passage 400 is a first wastewater passage 400-1, a second wastewater passage 400-2, a third wastewater passage 400-3, and a fourth wastewater passage 400 from above, as shown in FIG. -4), the fifth wastewater passage (400-5), the sixth wastewater passage (400-6) is to be formed, the first wastewater passage (400-1) and the sixth wastewater passage (400-6) on one side of the wastewater The inflow pipe 401 and the wastewater discharge pipe 402 are comprised.

The drop hole 304 formed in the fresh water induction pipe 300 stacked in multiple stages in the main body 20 is configured to be zigzag, so that all the waste water passages 400 are connected to each other through the drop hole 304.

Both sides of the fresh water induction pipe 300, the left and right plates 30, 40 are installed, each of the fresh water in the long and short through-holes 31, 32, 41, 42 composed of the diaphragm 30, 40 By allowing the end of the guide pipe to be fitted, the wastewater passage 400 is blocked by the diaphragms 30 and 40.

At this time, the end of the fresh water induction pipe 300 having the dropping hole 304 is fitted into the short through-holes 32 and 42 of the diaphragm 30 and 40, and the dropping hole 304 is not formed. Is configured to fit in the long through-holes 31 and 41.

The left and right fresh water guide guide plates 100 and 200 are integrally formed on the outer side of the left and right partition plates 30 and 40, but the constitutions of the fresh water guide guide plates 100 and 200 are as follows.

That is, the right fresh water guide guide plate 200 constitutes a vertical plate 210 that vertically divides the inner center vertically as shown in FIG. 3, but the first horizontal plate 201 and the left and right sides are formed based on the vertical plate 210. The second horizontal plate 202, the third horizontal plate 203, the fourth horizontal plate 204, the fifth horizontal plate 205 and the sixth horizontal plate 206 are composed of the first horizontal chamber 211, The second vertical room 212, the third vertical room 213, the fourth vertical room 214, the fifth vertical room 215, and the sixth vertical room 216 are configured.

The first water vertical chamber 211 and the sixth vertical chamber 216 are configured with a cold water inlet connecting hole 218 and a hot water outlet connecting hole 219, and the cold water inlet connecting hole 218 has a cold water inlet pipe 220. ), The hot water outlet connection hole 219 is connected to the hot water discharge pipe (221).

As described above, when the right fresh water guide guide plate 200 is fixedly installed at the side of the main body 20, one side entrance of the first fresh water guide pipe 300-1 is positioned in the first vertical water chamber 211, and the second A part of the first fresh water induction pipe 300-1 and a part of the second fresh water induction pipe 300-2 are positioned in the vertical compartment 212, and a second fresh water induction pipe ( A part of 300-2) and a part of the third fresh water induction pipe 300-3 are positioned.

In addition, a part of the third fresh water induction pipe 300-3 and a part of the fourth fresh water induction pipe 300-4 are positioned in the third vertical water room 214, and the fourth fresh water is located in the fifth vertical water room 215. A part of the induction pipe 300-4 and a part of the fifth fresh water guide pipe 300-5 are positioned, and a part of the fifth fresh water guide pipe 300-5 is located in the sixth vertical space.

The left fresh water guide guide plate 100 is the first horizontal plate 101 and the second horizontal plate 102, the third horizontal plate 103, the fourth horizontal plate 104, the first horizontal plate so as to maintain a constant interval in the horizontal direction as shown in FIG. The fifth horizontal plate 105 is configured so that the first horizontal compartment 111, the second horizontal compartment 112, the third horizontal compartment 113, the fourth horizontal compartment 114, and the fifth horizontal compartment between each horizontal plate. Let 115 be configured.

Therefore, an end of the first fresh water guide plate 300-1 is positioned in the first horizontal compartment 111 configured in the left fresh water guide guide plate 100, and a second fresh water guide pipe is formed in the second horizontal compartment 112. 300-2), a third fresh water induction pipe 300-3 in the third horizontal compartment 113, a fourth fresh water induction pipe 300-4 in the fourth horizontal compartment 114, In the five horizontal compartment 115, so that the ends of the fifth fresh water induction pipe (300-5) are located.

Therefore, when hot wastewater is supplied to the wastewater inflow pipe 401 configured at the upper side of the main body 20 of the wastewater heat recovery unit 10, as shown in FIG. 6, along the wastewater passage 400, that is, along the first wastewater passage 400-1. While proceeding in the direction of the arrow (A) through the drop hole 304 formed at the end of the fifth fresh water induction pipe (300-5) to fall to the second wastewater passage (400-2) to move in the opposite direction to the above .

The wastewater moved to one side through the second wastewater passage 400-2 falls down through the drop hole 304 formed at the end of the fourth fresh water induction pipe 300-4, and the third wastewater passage 400-3. The wastewater that has fallen to the third wastewater passage 400-3 and passes through the drop hole 304 formed at the end of the third fresh water induction pipe 300-3, the fourth wastewater passage 400-4. The wastewater passage 400-5 and the sixth wastewater passage 400-6 are zigzag-circulated, and the wastewater guided to the sixth wastewater passage 400-6 is discharged to the outside through the wastewater discharge pipe 402 formed at one side. Discharged.

In addition, the movement of fresh water circulating through the fresh water induction pipe 300 exchanging heat of wastewater is as follows.

That is, the cold water introduced into the first vertical water chamber 211 of the right fresh water guide plate 200 through the cold water inflow pipe 220 is a square tube 302 of the first fresh water induction pipe 300-1 as shown in FIG. 8. Cold water flows into the first horizontal compartment 111 of the left guide guide plate 100 through the fresh water passage 301 configured in the above, and flows into the first horizontal compartment 111, and then moves to the first side. While flowing through the other square tube body 302-1 of the plate 300-1, it flows into the bottom of the second vertical vertical chamber 212 configured in the right fresh water guide guide plate 200.

The fresh water flowing into the bottom of the second vertical water chamber 212 moves upwards of the second vertical water chamber 212 as shown in FIG. 9, and the fresh water passage of the square pipe body 302 ′ of the second fresh water induction pipe 300-2 ( 301 ′) is introduced into the second horizontal compartment 112 of the left guide guide plate 100, and the fresh water introduced into the second horizontal compartment 112 moves to one side and is again moved to the second fresh water guide tube 300. -2) flows into the fresh water passage (301) configured in the square tube (302).

The fresh water introduced into the fresh water passage 301 of the square pipe 302 of the second fresh water guide pipe 300-2 flows into the bottom of the third water vertical chamber 213 of the right fresh water guide guide plate 200, Is moved upward again and flows into the fresh water passage 301 configured in the square pipe 302 of the third fresh water induction pipe 300-3 as shown in FIG. 10 to the third horizontal compartment of the left fresh water guide guide plate 100. Flows into 113.

The fresh water introduced into the third horizontal compartment 113 is moved to one side and flows into the fresh water passage 301 'constituted by the square pipe 302' of the third fresh water guide pipe 300-3, and the right fresh water guide induction. It is introduced into the bottom of the fourth vertical vertical chamber 214 configured in the plate (200).

The fresh water flowing into the bottom of the fourth vertical water chamber 214 moves to the upper side, and then, through the fresh water passage 301 'formed in the square pipe 302' of the fourth fresh water induction pipe 300-4, as shown in FIG. The fresh water flowing into one side of the third horizontal compartment 114 configured in the left guide guide plate 100, and the fresh water flowing into the fourth horizontal compartment 114 moves to one side and is again square of the fourth fresh water guide pipe 300-4. The water flows into the bottom of the fifth vertical chamber 215 through the fresh water passage 301 formed in the pipe 302.

The fresh water introduced into the fifth vertical chamber 215 moves upwards and then moves through the fresh water passage 301 formed in the square pipe 302 of the fifth fresh water guide pipe 300-5, as shown in FIG. The fresh water flows into one side of the fifth horizontal compartment 115 configured in the guide guide plate 100, and the fresh water passes through the fresh water passage 301 ′ formed in the square pipe 302 ′ of the fifth fresh water guide pipe 300-5. It moves to the sixth vertical chamber 216 configured on the right fresh water guide guide plate 200, and the fresh water is discharged to the outside through the hot water discharge pipe (221).

As described above, the wastewater heat recoverer 10 using wastewater heat to be provided in the present invention is supplied with the wastewater to the upper side of the wastewater heat recoverer 10 and circulated in the left and right zigzag through the wastewater passage 400 while circulating in fresh water induction pipes. (300) and as much of the area as possible, fresh water is introduced from the bottom of the waste water heat recovery system 10, the zigzag circulation through the fresh water induction pipe 300 while absorbing the waste water heat is heated by using the principle that is discharged to the top while discharged to the top. It is possible to heat exchange effectively.

If you want to wash the wastewater passage 400 during use, stop the inflow of wastewater and then circulate the fresh water can simply wash away the residues remaining in the wastewater passage 400.

In constructing the present invention, the length or width of the fresh water induction pipe and the number of laminated water can be appropriately adjusted according to the conditions of the installation site and the needs of the user.

As described above, in the construction of the wastewater heat recovery system, the wastewater passage is formed by stacking the freshwater induction pipe in multiple stages in the main body, and guide water guide plates are installed on the left and right sides of the freshwater induction pipe to install the wastewater and fresh water. It is possible to effectively produce hot water by providing as many contact areas as possible in the same volume while staggering zigzag with each other.

Claims (3)

In constructing a waste water heat recovery system using a heat exchange method of waste water heat, the fresh water induction pipe 300 is stacked in multiple stages in the main body 20 so that the waste water passage 400 is zigzag between the fresh water induction pipes 300 and the fresh water induction pipe 300. ) Installs a plurality of square pipes 302 in which the fresh water passage 301 is closely installed, and then spot welds them to be integrated, and constitutes a square bar 303 for maintaining gaps at both sides and the center of which the inlet is blocked. The retaining square bar 303 is configured to shorten one side so that the drop hole 304 is composed of zigzag, and the water drainage pipe 300 is installed on both sides of the diaphragm 30 and 40 to connect the wastewater passage 400 to each other. The fresh water guide pipes (300) are installed on the outside of the diaphragm (30) and (40) to selectively move the fresh water flowing into the fresh water induction pipe (300), and the waste water passage (400). The upper and lower parts constitute a wastewater inflow pipe 401 and a wastewater discharge pipe 402, and one side Water guiding plate 200 up and down comprises a cold water inlet pipe 220 and hot water discharge pipe 221, the waste water containing heat flows into the waste water passage 400 through the waste water inlet pipe 401 and then zigzag downward While the circulation is discharged to the outside through the waste water discharge pipe 402, at the same time the fresh water introduced through the cold water inlet pipe 220 is zigzag upward circulation through the fresh water induction pipe 300 and the fresh water guide guide plate (100, 200) Waste water heat recovery system using a heat exchange method of waste water heat, characterized in that while being heated while being discharged to the outside through the hot water discharge pipe (221). According to claim 1, wherein the vertical plate 210 is formed in the center of the inner surface of the right fresh water guide guide plate 200, and the left and right of the vertical plate 210 to be arranged in a zig-zag multiple horizontal plates 1, 2, 3,4,5,6 vertical compartments 211, 212, 213, 214, 215, 216 are formed, and a plurality of transverse plates are installed on the inner surface of the left fresh water guide guide plate 100. The fresh water introduced through the cold water inlet pipe 220 zigzags the fresh water induction pipe 300 by allowing the 1,2,3,4,5 horizontal compartments 111, 112, 113, 114, and 115 to be configured. Waste water heat recovery using the heat exchange method of waste water heat characterized in that it is heated while circulating upward and then discharged to the outside through the hot water discharge pipe (221). delete