CN103946636A - Hot-water heat exchanger - Google Patents

Abstract

The aim of the present invention is to provide a hot-water heat exchanger capable of enabling the pipe structure to be connected to the hot-water heat exchanger to be simplified, and the resistance in a passage to be minimized by minimizing the length of the passage inside the hot-water heat exchanger. To achieve the aim, according to the present invention: a first adapter and a second adapter are connected on a partitioning plate forming one side surface of a heat-exchange unit; a first hot-water circulation passage, in which hot water from an inlet of the first adapter flows, is formed in a space between the partitioning plate and an adjacent partitioning plate; a first direct-water circulation passage, in which direct water that enters from an inlet of the second adapter flows, is formed in a space between a partitioning plate that forms the other side surface of the heat exchange unit and a partitioning plate that is adjacent thereto; and a plurality of second hot-water circulation passages, in which hot water passing through the first hot water circulation passage flows, and a plurality of second direct-water circulation passages, in which direct water passing through the first direct water circulation passage flows, are formed between the first hot-water circulation passage and the first direct-water circulation passage.

Description

hot water heat exchanger

technical field

The present invention relates to a hot-water heat exchanger, and more particularly, to a system for supplying warm water by exchanging heat between heating water heated by a boiler's main heat exchanger and direct-supply water. hot water heat exchanger.

Background technique

Fig. 1 is a diagram schematically showing the configuration of a general heating/hot water dual-purpose instant boiler.

Once the heating mode is activated, the circulation pump 10 is activated so that heating water is moved. After the heating water passes through the combustion heat of the burner 21 and is heated by the main heat exchanger 20, it is moved to the place where heating is required through the three-way valve 30 to realize heating. The heating return water whose temperature is lowered by heat exchange at the place required for heating is transferred to the main heat exchanger 20 through the expansion tank 50 and the circulation pump 10 to realize reheating. The unexplained symbol 22 represents a fan.

Once the warm water mode is activated, the three-way valve 30 blocks the passage connected to the place where heating is required and opens the passage connected to the side of the hot water heat exchanger 40 so that the heating water heated in the main heat exchanger 20 It is transferred to the hot water heat exchanger 40 side. In the hot water heat exchanger 40, heat exchange is performed between the direct supply water (water directly from the service line) and the heating water, thereby supplying the heated warm water to places where warm water is required.

To the hot water heat exchanger 40 as described above, pipes 41 for inflow of heating water, pipes 42 for discharge of heating water, pipes 43 for inflow of direct-supply water, and pipes 44 for discharge of hot water are connected. In order to simplify the configuration of these pipes 41, 42, 43, 44, the hot water heat exchanger of Korean Patent Registration 10-1002382 filed and registered by the present applicant is disclosed.

The hot water heat exchanger of the above-mentioned Patent Registration No. 10-1002382 consists of a heat exchange unit that realizes heat exchange by passing the heating water and the direct-supply water through the space between the partitions formed by overlapping a plurality of partitions, flowing into the An inflow port for heating water and a discharge port for discharging heating water that has been heat-exchanged inside the heat exchange unit are integrally formed and coupled to the first adapter of the heat exchange unit, and an inflow port for direct water supply and A discharge port for discharging warm water heated by heat exchange with heating water inside the heat exchange unit is integrally formed and connected to the second adapter of the heat exchange unit.

Inside the heat exchange unit, there are flow paths for heating water and direct water supply due to the space between adjacent partitions, but there is a problem that the flow path formed in this way is more efficient than a general hot water heat exchanger. The length of the path is increased, and the cross-sectional area of the flow path is reduced, resulting in a very large flow path resistance in the heat exchange unit.

Contents of the invention

technical problem

The present invention was made to solve the above-mentioned problems, and its object is to provide a system that can minimize the flow rate by simplifying the piping structure connected to the hot water heat exchanger and minimizing the length of the flow path inside the hot water heat exchanger. Hot water heat exchanger with road resistance.

Technical solutions

In order to achieve the above object, the hot water heat exchanger of the present invention is characterized in that: the heating water supplied by the main heat exchanger and the direct supply water alternately flow through a plurality of dividing plates 101 to 113 formed by overlapping The spaces 131, 132, 133, 134 between the heat exchange unit 100 for heat exchange, the inlet 211 for inflowing the heating water, and the outlet 212 for discharging the heating water that has completed the heat exchange in the heat exchange unit are formed. The first adapter 210 integrated into the heat exchange unit 100, the inflow port 221 that flows into the direct water supply, and the water that is heated by the heat exchange with the heating water inside the heat exchange unit is discharged. The hot water discharge port 222 is integrally formed and connected to the hot water heat exchanger constituted by the second adapter 220 of the heat exchange unit 100 , and the separator 101 forming one side surface of the heat exchange unit 100 is connected with a The first adapter 210 and the second adapter 220; the space between the partition 101 and the adjacent partition 102 forms a second channel for the heating water flowing in from the inlet of the first adapter 210 to flow. A heating water circulation channel 131; the space between the partition 113 forming the other side of the heat exchange unit 100 and the partition 112 adjacent to it is formed with a direct flow from the inlet 221 of the second adapter 220 The first straight water supply circulation channel 133 for water supply flow; between the first heating water circulation channel 131 and the first straight water supply circulation channel 133, multiple channels for the heating water flow passing through the first heating water circulation channel 131 are alternately formed. There are two second heating water circulation channels 132 and a plurality of second direct water supply circulation channels 134 through which the direct water supply through the first direct water supply circulation channel 133 flows.

Beneficial effect

According to the present invention, the heating water flowing in through the first adapter flows into the first heating water circulation passage formed at one end of the heat exchange unit, and the direct supply water flowing in through the second adapter flows into the heat exchange unit. The first straight water circulation channel formed at the other end of the heat exchange unit can reduce the length of the heating water and the direct water flow path formed inside the heat exchange unit.

In addition, a heating water passage unit that expands the cross-sectional area of the flow path is formed on the partition plate at one end of the heat exchange unit, and a direct water supply unit that expands the cross-sectional area of the flow path is formed on the partition plate at the other end of the heat exchange unit. Through the unit, flow path resistance can be reduced.

Description of drawings

FIG. 1 is a diagram schematically showing the configuration of a general heating/hot water dual-purpose instantaneous boiler;

Fig. 2 is a perspective view showing a hot water heat exchanger of the present invention;

Fig. 3 is an exploded perspective view of the hot water heat exchanger in Fig. 2;

4 is a cross-sectional view schematically showing the A-A section of the heat exchange unit of the hot water heat exchanger of FIG. 2;

Fig. 5 is a sectional view schematically showing a B-B section of a heat exchange unit of the hot water heat exchanger of Fig. 2;

6 is a cross-sectional view showing a state where a first connection member and a second connection member of the present invention are coupled to a first adapter;

7 is a sectional view showing a state where a third connection member and a fourth connection member of the present invention are coupled to a second adapter;

8 is a cross-sectional view showing flow paths of heating water and warm water, respectively, in a state where the first adapter and the second adapter of the present invention are coupled to the heat exchange unit.

Symbol Description:

1: Hot water heat exchanger 100: Heat exchange unit

101～113: clapboard

101a～111a, 102b～111b: Heating water through holes

101c～112c, 103d～112d: direct water supply through hole

131: The first heating water circulation channel 132: The second heating water circulation channel

133: The first direct water supply circulation channel 134: The second direct water supply circulation channel

210: First adapter 211: Inflow port

212: discharge port 213: external connection port

214: Internal connection port 216: Water supply valve connection port

217: Heating return water connection port 220: Second adapter

221: Inflow port 222: Exhaust port

223: Internal connection port 224: External connection port

226: Water supply valve connection port 231: The first connecting member

232: Second connecting member 233: Third connecting member

234: The fourth connecting member 300: Water supply valve

Detailed ways

Hereinafter, the configuration and function of preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 2 is a perspective view showing the hot water heat exchanger of the present invention.

The hot water heat exchanger 1 of the present invention is a heat exchange unit that realizes heat exchange by making heating water and direct supply water (water directly from the household pipeline) flow through the space between the partitions formed by overlapping a plurality of partitions 100. The first coupler 210 and the second coupler combined with the heat exchange unit 100 to connect the piping (symbols 41, 42, 43, 44 in FIG. 1 ) of the heating line and the hot water line to the heat exchange unit 100 220 to form.

Fig. 3 is an exploded perspective view of the hot water heat exchanger of Fig. 2 , Fig. 4 is a cross-sectional view schematically showing the A-A section of the heat exchange unit of the hot water heat exchanger of Fig. 2 , and Fig. 5 is a schematic diagram showing Fig. 2 Cross-sectional view of the B-B section of the heat exchange unit of the hot water heat exchanger.

As an example, the heat exchange unit 100 of the present invention is realized by a configuration in which 13 partition plates 101 to 113 are stacked. The partitions 101 to 113 serve as heat transfer surfaces for heat exchange between the heating water and the direct supply water, and are formed by bending the edges of the thin plates and welding the edges of the adjacent partitions 101 to 113 to each other. product structure.

Concaves and convexes are formed on the separators 102 to 112 to expand the heat transfer area. 4 and 5 omit the illustration of the unevenness.

Heating water passage holes 101a to 112a, 102b to 111b and direct water supply passage holes 101c to 112c, 103d to 112d are formed in the partition plates 102 to 112 so that the heating water and the warm water do not mix with each other and can flow inside the heat exchange unit 100. flow.

The heating water through-holes 101a-112a, 102b-111b and the direct water-supply through-holes 101c-112c, 103d-112d are shaped in such a way that the flat parts of the thin plates 101-113 are protruded and bent to form flanges, so that The heating water passage holes and the direct water supply passage holes of adjacent partitions are combined to communicate with each other. As shown in Fig. 4 and Fig. 5, it may be configured such that the heating water passage hole and the direct water supply passage hole are respectively formed as protruding flange shapes on adjacent partitions, or only holes are formed on one partition. And the hole is protruded in the spacer adjacent to it to form a flange.

The heating water passages 101a to 112a, 102b to 111b connected in this way form passages for flowing heating water, and the direct supply water passages 101c to 112c, 103d to 112d form passages for flowing direct supply water.

As shown in FIG. 4 and FIG. 5 , the spaces formed between the partitions 101 - 113 are used to form heating water circulation channels 131 , 132 and direct supply water circulation channels 133 , 134 . The heating water that flows into the heat exchange unit 100 through the first adapter 210 passes through the first heating water circulation channel 131 and the second heating water circulation channel 132 in sequence and connects with the direct water supply circulation channel 133 and the second direct water supply circulation channel 134 . After heat exchange, the supply water is discharged to the heating return water side through the first adapter 210 . In addition, the direct-supply water that flows into the heat exchange unit 100 through the second adapter 220 passes through the first direct-supply water circulation channel 133 and the second direct-supply water circulation channel 134 in turn and passes through the first heating water circulation channel 131 and the second heating water circulation channel 132 After heat exchange, the heating water is supplied to places where warm water is needed through the second adapter 220 .

A heating water passing unit 101 e having a shape extending in a diagonal direction and protruding toward the outer side of the heat exchange unit 100 is formed on the partition plate 101 combined with the adapters 210 and 220 . A first heating water circulation channel 131 is formed in a space between the partition plate 101 forming the heating water passing unit 101e and the partition plate 102 adjacent thereto. The surfaces of the partitions 102 are formed with irregularities. In this case, since the first partition 101 except for the portion forming the heating water passing unit 101e is formed in the same manner as the concaves and convexes formed on the adjacent partitions 102 The contact or distance is very narrow, so when the heating water passes through this part, it will encounter a large flow path resistance. In the present invention, the heating water passage unit 101e is formed to protrude outward, and the heating water passage hole 101a through which the heating water flows is formed at one side end of the heating water passage unit 101e, thereby guiding the heating water to The heating water expanding the flow path passes through the unit 101e so as to encounter a small flow path resistance when the heating water passes.

In addition, the partition plate 113 provided on the other side of the heat exchange unit 100 opposite to the first partition plate 101 is formed with a straight line having a shape extending in a diagonal direction and protruding toward the outside of the heat exchange unit 100 . The water supply passes through unit 113e. A first direct water circulation channel 133 is formed in the space between the partition 113 forming the direct water passing unit 113e and the partition 112 adjacent thereto. As the straight water passes through the unit 113e, the flow path expands, so that when the straight water passes through the first straight water circulation channel 133, there is little flow path resistance.

6 is a cross-sectional view showing a state where the first connecting member and the second connecting member of the present invention are coupled to the first adapter, and FIG. 7 is a cross-sectional view showing the coupling of the third and fourth connecting members of the present invention to the second adapter. A cross-sectional view of the state of the adapter.

The configuration of combining the heat exchange unit 100 and the first adapter 210 will be described with reference to FIG. 6 .

The end portion of the first connection member 231 is inserted into the heating water passage hole 101a formed in the first partition plate 101 and connected. The first connecting member 231 is formed of a cylindrical main body, and after bending the upper end of the main body, the bent part is inserted into the heating water passage hole 101a and welded together.

A second connection member 232 is inserted inside the first connection member 231 . The second connecting member 232 protrudes a part of the main body to the upper side of the first connecting member 231, and the upper end of the protruding part is inserted into the heating water passage hole 102b of the second partition 102 and the third partition 103. The heating water is combined through the hole 103b.

The inner peripheral surface of the first connection member 231 and the outer peripheral surface of the second connection member 232 are spaced apart from each other so that heating water flowing in through the inflow port 211 can pass through a space 231a formed therebetween.

The first adapter 210 connects the heating pipe and the heat exchange unit 100 to realize the inflow and outflow of heating water, and the inflow port 211 , the discharge port 212 and the connection ports 213 and 214 are integrally formed by injection molding.

The inlet 211 is connected to the heating pipeline 41 in FIG. 1 to allow heating water to flow in, and the outlet 212 is connected to the heating pipeline 42 in FIG. .

The connecting ports 213, 214 are composed of an external connecting port 213 inserted into the lower end of the first connecting member 231 and an internal connecting port 214 inserted into the lower end of the second connecting member 232. The internal connection port 214 is located inside the external connection port 213 and forms a concentric structure.

The heating water flowing in through the inflow port 211 passes through the space between the external connection port 213 and the internal connection port 214 , is discharged through the space 231 a between the first connection member 231 and the second connection member 232 , and flows into the The first heating water circulation channel 131 .

The heating water circulating inside the heat exchange unit 100 passes through the second connection member 232 and the inner space of the inner connection port 214 to be discharged through the discharge port 212 .

The portion where the first connection member 231 is connected to the external connection port 213 and the portion where the second connection member 232 is connected to the internal connection port 214 are preferably respectively inserted with O-rings for maintaining airtightness.

The lower ends of the first connecting member 231 and the second connecting member 232 connect the outer peripheral surface of the outer connecting port 213 and the first connecting member 231 in the state where the outer connecting port 213 and the inner connecting port 214 are inserted through the sealing ring. The protruding part is fixed by a clamp or the like, so that the first adapter 210 can be detached.

In this case, since the upper end of the first connecting member 231 is welded to the periphery of the heating water passage hole 101c of the partition 101, the upper ends of the second connecting member 232 are respectively welded to the around the heating water passage hole 102b of the partition 102 and around the heating water passage hole 103b of the partition 103, so only the first adapter 210 can be separated from the first connecting member 231 and the second connecting member 232 .

In addition, it is preferable to form a water supply valve connection port 216 (see FIG. 8 ) connected to a water supply valve 300 (see FIG. 8 ) for supplying heating water to the inside of the heating pipe of the boiler in the first adapter 210 . The water supply valve is used to further supply heating water when there is a lack of heating water inside the heating pipeline. The water supply valve is connected to the water supply valve connection port 216 formed integrally with the first adapter 210 to simplify the piping structure.

Moreover, it is preferable to form the heating return water connection port 217 (refer FIG. 8) in the 1st adapter 210. As shown in FIG. The heating return water connection port 216 is connected to the side of the heating pipe through which the heating return water flows. The heating return water flowing in through the heating return water connection port 216 is supplied to the circulation pump 10 side through the discharge port 212 .

The configuration of combining the heat exchange unit 100 and the second adapter 220 will be described with reference to FIG. 7 .

The direct water supply through-holes 101c, 102c formed in the first partition 101 and the second partition 102 are combined by inserting the third connection member 241 . The third connection member 241 is constituted by a cylindrical main body, and after bending the upper end of the main body, the bent part is inserted into the direct water supply holes 101c, 102c and welded together.

A fourth connection member 242 is inserted inside the third connection member 241 . A part of the main body of the fourth connecting member 242 protrudes to the upper side of the third connecting member 241, and the upper end of the protruding part is connected to the periphery of the direct water supply through hole 111c of the partition on the upper side of the heat exchange unit 100 and Around the direct water supply through hole 112c of the dividing plate.

The inner peripheral surface of the third connection member 241 and the outer peripheral surface of the fourth connection member 242 are spaced apart from each other so that the space 241 a formed therebetween and the discharge port 222 can communicate with each other.

The second adapter 220 connects the direct water supply pipe 43/warm water pipe 44 and the heat exchange unit 100 to realize the inflow and outflow of the direct supply water/warm water, and the inflow port 221, the discharge port 222 and the connection ports 223 and 224 are formed by injection molding. Formed into one.

The inflow port 221 is connected to the supply pipe 43 in FIG. 1 to allow direct water to flow in, and the discharge port 222 is connected to the pipe 44 in FIG. 1 to discharge warm water heated through the heat exchange unit 100 .

The connection ports 223, 224 are composed of an external connection port 224 inserted into the lower end of the third connection member 241 and an internal connection port 223 inserted into the lower end of the fourth connection member 242. The internal connection port 223 is located inside the external connection port 224 and forms a concentric structure.

The direct water supplied through the inlet 221 flows into the first direct water circulation channel 133 through the internal connection port 223 and the inner space of the fourth connection member 242 .

The direct-supply water that circulates through the first direct-supply water circulation channel 133 inside the heat exchange unit 100 passes through the space 241a between the third connecting member 241 and the second connecting member 242 and all the spaces connected to the space 241a in sequence. The space 225 between the external connection port 224 and the internal connection port 223 is then discharged through the discharge port 222.

The portion where the third connection member 241 is connected to the external connection port 224 and the portion where the fourth connection member 242 is connected to the internal connection port 223 are preferably respectively inserted with O-rings for maintaining airtightness.

The lower ends of the third connecting member 241 and the second connecting member 242 connect the outer peripheral surface of the outer connecting port 224 and the third connecting member 241 in the state where the outer connecting port 224 and the inner connecting port 223 are inserted through the sealing ring. The protruding part is fixed by a clamp or the like, so that the second adapter 220 can be detached.

In this case, since the upper end of the third connection member 241 is welded to the periphery of the through hole 101c of the partition 101 and the periphery of the through hole 102c of the partition 102, the fourth connection member 242 The upper ends are respectively welded around the through hole 111c of the partition 111 and around the through hole 112c of the partition 112, so only the second adapter 220 can be connected from the third connecting member 241 and the fourth connecting member 241. The connecting member 242 is separated.

As mentioned above, in the first adapter 210 and the second adapter 220 of the present invention, the inlets 211, 221, the outlets 212, 222 and the connection ports 213, 214, 223, 224 are integrally formed, so that the connection with them can be simplified. piping structure.

In addition, it is preferable to form a water supply valve connection port 226 connected to the water supply valve 300 in the second adapter 220 (see FIG. 8 ).

8 is a cross-sectional view schematically showing flow paths of heating water and warm water in a state where the first adapter and the second adapter of the present invention are coupled to the heat exchange unit.

The heat exchange unit 100 is combined with a first adapter 210 and a second adapter 220 for connecting heating pipes and warm water pipes, and the first adapter 210 and the heat exchange unit 100 connect the first connection member 231 and the second connection member 232 as a medium to combine.

Once the three-way valve is switched to the warm water mode, the heating water heated in the main heat exchanger 20 is blocked from flowing to the place where heating is required and is supplied to the hot water heat exchanger 1 side to flow into the first adapter 210 inside of the inflow port 211.

The heating water flowing in from the inflow port 211 of the first adapter 210 sequentially passes through the space 215 between the outer connection port 213 and the inner connection port 214 of the first adapter 210 and the first connecting member 231 and the second connecting member. The space 231a between 232 then flows into the first heating water circulation passage 131 formed between the first partition 101 and the partition 102 adjacent thereto.

Since the upper end of the second connection member 232 is combined so that the heating water does not flow into the heating water through hole 102b of the partition 102 and the heating water through hole 103b of the partition 103, the water flowing into the first heating water circulation channel 131 After the heating water flows through the first heating water circulation channel 131 in the horizontal direction, it flows into the upper heating water circulation through the other heating water holes 102a, 103a formed in the diagonal direction of the heating water holes 102b, 103b. aisle.

Since the partition plate 131 forming the first heating water circulation channel 131 is formed with the heating water passage unit 101e whose cross-sectional area is expanded, the heating water passing through the first heating water circulation channel 131 will not encounter large flow resistance. .

The heating water passing through the heating water passages 102a and 103a sequentially passes through the heating water passages 104a to 111a of another partition formed directly above them, and then passes through the upper part of the first heating water circulation passage 131. The plurality of second heating water circulation passages 132 flow in a horizontal direction opposite to the flow direction in the first heating water circulation passage 131 .

The heating water that has passed through the second heating water circulation passage 132 and has exchanged heat with the direct supply water passing through the direct supply water circulation passages 133 and 134 sequentially passes through the heating water formed in the diagonal horizontal direction of the heating water passage holes 104a to 111a. The through holes 111 b to 104 b then flow into the second connection member 232 , and are discharged to the expansion tank 50 through the discharge port 212 while passing through the internal connection port 214 of the first adapter 210 and the temperature is lowered.

At the same time, the direct feed water flows into the inflow port 221 of the second adapter 220 . The straight water that has flowed into the inflow port 221 flows into the first straight water formed on the side opposite to the side to which the adapters 210 and 220 are coupled in the heat exchange unit 100 via the inner connection port 223 and the inside of the fourth connection member 242 . Water supply circulation channel 133 .

After the straight water flowing into the first straight water circulation channel 133 flows in the horizontal direction, it flows into the straight water below through the straight water through hole 111d formed in the partition 111 and the straight water through hole 112d formed in the partition 112. Water circulation channel.

Since the partition plate 113 forming the first straight water circulation channel 133 is formed with a direct water supply passing unit 113e whose cross-sectional area is expanded, the direct water supply passing through the first straight water supply circulation channel 133 will not encounter Large flow path resistance.

The heating water passing through the through holes 111d and 112d passes through the direct water supply through holes 110d to 103d of another partition formed directly below them in sequence, and then passes through the first direct water supply circulation channel 133 formed at the lower part. The plurality of second straight water circulation channels 134 flow in a horizontal direction opposite to the flow direction in the first straight water circulation channels 133 .

The direct-supply water passing through the second direct-supply water circulation channel 134 and having performed heat exchange with the heating water passing through the heating-water circulation channels 131 and 132 sequentially passes through the direct-supply water formed in the diagonal horizontal direction of the direct-supply water through-holes 110d-103d. The through holes 110c to 103c then flow into the space 241a between the third connection member 241 and the fourth connection member 242, thereby passing through the space 225 between the internal connection port 223 and the external connection port 224 in sequence to become warm water. It is discharged to the place where warm water is required through the discharge port 222 .

In this case, the fourth connection member 242 is inserted into the direct water supply holes 110c to 103c, and passes through the gap formed between the outer peripheral surface of the fourth connection member 242 and the direct water supply holes 110c to 103c. Make the direct water supply flow.

As mentioned above, since the present invention successively forms a first heating water circulation channel 131, a plurality of second direct water supply circulation channels 134, a plurality of second heating water circulation channels 132 and a first direct water supply circulation channel 133, the flow The flow paths of the heating water and the direct supply water inside the superheat exchange unit 100 are short and receive little flow path resistance.

That is, since the first heating water circulation passage 131 as heating water flows into the first space inside the heat exchange unit 100 and the first direct supply water circulation passage 133 as the direct supply water flowing into the first space inside the heat exchange unit 100 respectively Formed on one side and the other side of the heat exchange unit 100, flow passages of heating water and direct supply water can be shortened.

In addition, once the three-way valve 30 is switched to the heating mode, the heating water supplied to the place required for heating flows back to the side of the circulation pump 10 after realizing the heat exchange process. In the present invention, the heating return water flowing back to the circulation pump 10 flows into the heating return water connection port 217 of the first adapter 210 , so that it flows back to the circulation pump 10 side through the expansion tank 50 after passing through the discharge port 212 .

In the case of lack of heating water inside the heating pipe, the water supply valve 300 is opened to supplement the heating water. The water supply valve 300 is disposed between the water supply valve connection port 216 of the first adapter 210 and the water supply valve connection port 226 of the second adapter 220 . Therefore, if the water supply valve 300 is opened, a part of the warm water inside the second adapter 220 is supplied to the return water after passing through the water supply valve connection port 226 and the water supply valve connection port 216 and the discharge port 212 of the first adapter 210 in sequence. Side heating piping.

Claims (6)

1. a hot water heat exchanger, it is characterized in that, alternately flow through the space (131 between the overlapping dividing plate forming of multiple dividing plates (101～113) at the heating water by by making main heat exchanger supply and direct-furnish water, 132, 133, 134) realize the heat exchange unit (100) of heat exchange, flow into the inflow entrance (211) of described heating water and discharge the first connector (210) that the outlet (212) that completes the heating water of heat exchange in described heat exchange unit inside forms as one and is attached to described heat exchange unit (100), and flow into the inflow entrance (221) of described direct-furnish water and discharge described heat exchange unit inside because of and heating water between the outlet (222) of the heated warm water of heat exchange form as one and be attached in the hot water heat exchanger that second connector (220) of described heat exchange unit (100) forms,

Dividing plate (101) in a side that forms described heat exchange unit (100) is connected with described the first connector (210) and the second connector (220);

Space between the dividing plate (102) of described dividing plate (101) and adjacency is formed with the first mobile heating water circulation canal (131) of heating water flowing into from the inflow entrance (211) of described the first connector 210;

Space between dividing plate (113) and the dividing plate (112) that is adjacent of another side that forms described heat exchange unit (100) is formed with from the first direct-furnish water circulation channel (133) of the direct-furnish water flow of inflow entrance (221) inflow of described the second connector (220);

Between described the first heating water circulation canal (131) and the first direct-furnish water circulation channel (133), be alternately formed with and passed through multiple the second heating water circulation canals (132) that the heating water of described the first heating water circulation canal (131) flows and passed through multiple second direct-furnish water circulation channels (134) of the direct-furnish water flow of described the first direct-furnish water circulation channel (133).

2. hot water heat exchanger according to claim 1, it is characterized in that, be formed with lateral direction heating water outstanding and that extend along the diagonal of dividing plate (101) to heat exchange unit (100) by unit (101e) at the dividing plate (101) of a side that forms described heat exchange unit (100), thereby make the flow path cross sectional area expansion of described the first heating water circulation canal (131).

3. hot water heat exchanger according to claim 2, it is characterized in that, be formed with lateral direction direct-furnish water outstanding and that extend along the diagonal of dividing plate (113) to heat exchange unit (100) by unit (113e) at the dividing plate (113) of another side that forms described heat exchange unit (100), thereby make the flow path cross sectional area expansion of described the first direct-furnish water circulation channel (133).

4. according to the hot water heat exchanger described in claim 2 or 3, it is characterized in that,

In described the first connector (210), be connected to the outside connector (213) of the through hole (101a) of a side that is formed at described dividing plate (101), and be inserted into the inner side of described outside connector (213) and form concentric structure and being connected to described outside connector (213) and be formed at the inside connector (214) of the heating water through hole (102b, 103b) of the dividing plate (102,103) of dividing plate (101) adjacency and form as one;

The heating water that flow into described inflow entrance (211) flow into described the first heating water circulation canal (131) by the space (215) between described outside connector (213) and inner connector (214);

In described the second connector (220), be connected to the outside connector (224) of the direct-furnish water through hole (101c) of the opposite side that is formed at described dividing plate (101), and be inserted into the inner side of described outside connector (224) and form concentric structure and being connected to described outside connector (224) and be formed at the inside connector (223) of the direct-furnish water through hole (111c, 112c) of the dividing plate (111,112) of dividing plate (113) adjacency and form as one;

The direct-furnish water that flow into described inflow entrance (221) flow into described the first direct-furnish water circulation channel (133) by the space (225) between described outside connector (224) and inner connector (223).

5. hot water heat exchanger according to claim 4, is characterized in that,

The outside connector (213) of described the first connector (210) is connected the first connecting elements (231) with heating water through hole (101a) as medium;

The inside connector (214) of described the first connector (210) and the outside of heating water through hole (102b, 103b) using end to described the first connecting elements (231) the second connecting elements (232) more outstanding and form the mobile space of heating water (231a) between itself and described the first connecting elements (231) is connected as medium;

The outside connector (224) of described the second connector (220) is connected the 3rd connecting elements (241) with direct-furnish water through hole (101c, 102c) as medium;

The inside connector (223) of described the second connector (220) and the outside of described direct-furnish water through hole (111c, 112c) using end to the 3rd connecting elements (241) the 4th connecting elements (242) more outstanding and form the space (241a) of direct-furnish water flow between itself and described the 3rd connecting elements (241) is connected as medium.

6. hot water heat exchanger according to claim 5, is characterized in that,

In the heating water through hole (101c) of described dividing plate (101) around, solder bond is in the heating water through hole (102b, 103b) of described dividing plate (102,103) around respectively in the upper end of described the second connecting elements (232) for the upper end solder bond of described the first connecting elements (231);

In the direct-furnish water through hole (101c, 102c) of described dividing plate (101,102) around, solder bond is in the direct-furnish water through hole (111c, 112c) of described dividing plate (111,112) around respectively in the upper end of described the 4th connecting elements (242) for the upper end solder bond of described the 3rd connecting elements (241);

The upper end of the upper end of the external connecting (213) of described the first connector (210) and the inside connector (214) of described the first connector (210) is inserted in respectively the inner side, lower end of described the first connecting elements (231) and the inner side, lower end of described the second connecting elements (232) to maintain airtight state by sealing ring;

The upper end of the upper end of the outside connector (224) of described the second connector (220) and the inside connector (223) of described the second connector (220) is inserted in respectively the inner side, lower end of described the 3rd connecting elements (241) and the inner side, lower end of described the 4th connecting elements (242) to maintain airtight state by sealing ring.