CN107076461A - Boiler with the check-valves integrated with conduit pipeline - Google Patents

Abstract

It is an object of the invention to provide a kind of boiler with the check-valves integrated with conduit pipeline for the structure for having and can simplifying and minimizing water pipe.It is characterised in that it includes：The heating water heated in main heat exchanger is needed place, or heating water selective is supplied into hot water supply heat exchanger side by triple valve, the stream for changing heating water supplied to heating；Shunt valve, connect at the triple valve and heating water return pipe, the heating water return pipe connection heating needs and the main heat exchanger the connection of heating water return pipe；Check-valves, it is provided to the pipeline of the shunt valve, and due to be connected to the heating need to locate the heating pipe arrangement of side or be connected to the hot water supply heat exchanger side heating pipe arrangement be closed and in the case of occurring superpressure, only allow the flowing of fluid in a direction from the triple valve to heating water return pipe, also, the triple valve and the one-piece type mode of shunt valve and check-valves one are provided in same water pipe module.

Description

Boiler with check valve integrated with water piping

technical field

The present invention relates to a boiler with a check valve integrated with a water pipe, and in particular to a boiler with a check valve integrated with a water pipe that is integrated in a water pipe module By forming a bypass structure of heating water that can prevent the internal water pressure of the heating pipe from rising beyond a predetermined level, the structure of the water pipe can be simplified and miniaturized.

Background technique

Generally, a boiler (boiler) is a device that heats heating water with the combustion heat of a burner, supplies the heated heating water to a place where heating is needed for heating, and uses the heated heating water Hot water is supplied by heat exchange between water and tap water.

A conventional general boiler is composed of the following elements: a main heat exchanger, which heats heating water with the combustion heat of a burner; a circulation pump, which is installed in the flow path of heating water for forced circulation of heating water; The heating water heated from the main heat exchanger is supplied to the place where heating is needed or selectively supplied to the side of the hot water supply heat exchanger to switch the flow path of the heating water; The exchanger obtains the heat exchange between the heated heating water and tap water to supply hot water; the expansion tank recovers and stores the heating water that returns to the place where heating is needed and the heating water that circulates through the hot water supply heat exchanger.

If the boiler configured as above is set to operate in the heating mode or the hot water mode, if the user arbitrarily closes the heating piping, or if foreign matter accumulates in the heating piping and the heating piping is blocked, Then, an overpressure exceeding the allowable pressure occurs in the heating piping, and in this case, damage to boiler components including the circulation valve may occur. As a structure for preventing the overpressure in the heating piping as described above, Korean Laid-Open Patent No. 1998-016052 discloses a structure in which two upper and lower open and close holes are formed in the discharge pipe of the bidirectional circulation pump. A bypass is formed on one side of the discharge pipe between them, and a bypass pipe is connected between the bypass hole and the heating water return pipe.

According to the above configuration, although there is an advantage of being able to prevent overpressure of the heating pipe, since the bypass pipe connecting the bidirectional circulation pump and the heating water return pipe is always open through the bypass hole, even if In the normal state where the heating piping is not closed, a part of the heating water heated in the heating mode and the hot water mode also leaks to the heating water return pipe side through the bypass pipe, thereby having the heat exchange efficiency of the heating water The reduction is certain, and there is a disadvantage that the manufacturing cost of the boiler increases with the installation of an expensive bidirectional circulation pump.

In addition, the hot water supply heat exchanger can be classified into: a finned tube type heat exchanger configured by inserting a plurality of pipes into a water tank; and a plate type heat exchanger configured by stacking a plurality of plates so that Heating water and tap water flow alternately in each internal layer to realize heat exchange. Among them, the plate heat exchanger has the advantage of being able to reduce the number of parts and volume compared with the heat exchanger of the finned tube system, thereby improving productivity.

A general structure of a plate heat exchanger in which such plates are stacked is disclosed in Korean Patent Laid-Open No. 10-1151754 and Korean Laid-Open Patent No. 10-2003-0071249.

The existing general plate heat exchanger based on the above-mentioned prior art is configured to improve heat exchange efficiency. The heating water inlet and the heating water outlet are formed on the lower side of the plate and the upper other side of the plate, and the tap water inlet and Hot water outlets are formed on the other side of the lower part and one side of the upper part, so that heating water and tap water flow in countercurrent to realize heat exchange. However, in the existing plate heat exchanger, the water pipes through which the heating water flows and the water pipes through which the tap water (hot water) flows are respectively formed at the diagonal positions of the plates at a distance from each other, and thus are connected to the heating water flow. The water pipes for the inlet and the heating water outlet and the water pipes connected to the tap water inlet and the hot water outlet are respectively provided at positions separated from each other, so that the pipe structure of the heating water and the water pipe structure of the tap water (hot water) become complicated. , and occupy a large installation space, making it difficult to reduce the size of the boiler, and because the water pipes become longer, there is a problem that pressure loss occurs and the thermal efficiency decreases.

Contents of the invention

technical problem

The present invention is proposed to solve the above problems, and its object is to provide a boiler with a check valve integrated with the water pipe that can prevent the water pressure inside the heating pipe from exceeding The bypass structure of the heating water that rises to a predetermined level can simplify and downsize the structure of the heating water drain pipe.

Another object of the present invention is to provide a boiler with a check valve integrated with water pipes: each functional part of the boiler water pipe is constituted in a modular unit, thereby simplifying the assembly structure of the water pipe parts, thereby improving the efficiency of the boiler. product productivity.

Still another object of the present invention is to provide a boiler having a check valve integrated with water pipe piping that can improve thermal Exchange performance.

technical means

The boiler with the check valve integrated with the water pipe of the present invention to solve the above-mentioned object has the main heat exchanger 30 for heating the heating water by the combustion heat of the heater and the main heat exchanger 30 for heating the heating water by means of the slave The heat exchanger 30 obtains the heat exchange between the heated heating water and tap water to supply hot water. The hot water supply heat exchanger 100 is characterized in that it includes: a three-way valve 210 for switching the flow path of the heating water to The heating water heated in the main heat exchanger 30 is supplied to heating needs, or the heating water is selectively supplied to the side of the hot water supply heat exchanger 100; the bypass pipe L8 is connected to the three-way valve 210 and the heating water return pipe L3, the heating water return pipe L3 connects the heating needs and the main heat exchanger 30; and the check valve 220 is equipped with the pipeline of the bypass pipe L8, and is connected When the heating pipe L2 to the heating demand side or the heating pipe L6 connected to the hot water supply heat exchanger 100 side is closed and overpressure occurs, only from the three-way valve 210 to the One direction of the heating water return pipe L3 allows the flow of fluid, and the three-way valve 210, the bypass pipe L8 and the check valve 220 are integrated in the same water pipe module.

The heating pipes L4 and L5 connected to the heating water return pipe L3 may be provided with a circulation pump 20 for pumping heating water in one direction toward the main heat exchanger 30 side.

When the heating pipe L2 connected to the heating demand side or the heating pipe L6 connected to the hot water supply heat exchanger 100 side is closed and overpressure occurs, the main heat exchanger 30 is heated. The heating water can be supplied to the three-way valve 210 and then flow into the bypass pipe L8 communicated on one side of the three-way valve 210, and flow into the expansion tank 10 after passing through the check valve 220, and store The heating water in the expansion tank 10 is circulated to the main heat exchanger 30 by the circulation pump 20 to prevent overpressure in the heating piping.

The hot water supply heat exchanger (100) is constructed in such a manner that a plurality of plates are stacked, and the heating water flow path (P1) and the tap water flow path (P2) are formed separately from each other to exchange heat during the hot water supply. The inside of the device 100 makes heating water and tap water alternately flow in each layer and realizes heat exchange, and the front panel 110 located in front among the plurality of plates may be formed with: a heating water discharge guide 110c, so that the heating water The flow path of heating water is formed so that the outflow pipe L7 is located close to the heating water inflow pipe L6, and the heating water outflow pipe L7 flows into the heating water flow formed on the lower side of the front panel 110. and the hot water discharge guide 110d forms a hot water flow path in such a way that the hot water outflow pipe L11 is located at a position close to the tap water inflow pipe L10. The hot water outflow pipe L11 allows the hot water to flow into the tap water inflow pipe L10 formed on the other side of the lower part of the front panel 110 to be discharged after passing through the tap water flow path P2, and may include: a first water pipe module 200, a The heating water inflow pipe L6 and the heating water outflow pipe L7 of the hot water supply heat exchanger 100 are detachably assembled on the side, and the three-way valve 210, the bypass pipe L8 and the check valve 220 are equipped in one body, thereby providing The heating water supplied from the main heat exchanger 30 passes through the place where heating is needed or the hot water supply heat exchanger 100 and returns to the flow path; the second water pipe module 300 is detachably assembled on one side of the hot water supply heat exchanger. The tap water inflow pipe L10 of the exchanger 100 and the hot water supply pipe L11 provide a flow path of tap water and hot water passing through the hot water supply heat exchanger 100 .

A heating water inflow hole 111 connected to the heating water inflow pipe L6 may be formed on the lower side of the front panel 110, and a heating water outflow pipe connected to the heating water outflow pipe may be formed on one side of the heating water inflow hole 111. The heating water discharge hole 112 of L7, the heating water discharge guide part 110c may be formed to guide the heating water discharged forward toward the other upper side of the front panel 110 to the heating water discharge hole 112 .

On the other side of the bottom of the front panel (110), a tap water inflow hole (113) connected to the tap water inflow pipe (L10) is formed, and on the top of the front panel (110), there is no A hot water discharge hole (114) connected to the hot water supply pipe (L11) is formed at a position close to the tap water inflow hole (113) in the area of the heating water discharge guide (110c), and the hot water discharge hole (114) is connected to the hot water supply pipe (L11). The discharge guide (110d) may be formed to guide the hot water discharged forward toward the upper side of the front panel (110) to the hot water discharge hole (114).

A flat panel 120 can be stacked behind the front panel 110, and a heating water inflow hole 121 is formed on one side of the lower part of the flat panel 120, a heating water discharge hole 122 is formed on the other side of the upper part, and a heating water discharge hole 122 is formed on the other side of the lower part. A tap water inflow hole 123 is formed, and a hot water discharge hole 124 is formed on the upper side, and the edges of the heating water discharge guide part 110c and the hot water discharge guide part 100d can be closely attached to the flat panel 120, and the The inner portion of the edge protrudes forward to form a discharge flow path for heating water and hot water.

At the rear of the flat panel 120, a plurality of first plates 130 and second plates 140 formed in such a way that the bosses located in the diagonal direction are staggered forward and backward can be stacked alternately to form the heating water flow paths alternately. P1 and the tap water flow path P2, a plurality of first bead 135 and second bead 145 bent in opposite directions may be formed on the first plate 130 and the second plate 140, and are configured to allow fluid to flow to the The overlapping gap between the first bead 135 and the second bead 145 .

Behind the second plate 140 that is stacked at the rear, a first flow path switching plate 150 and a second flow path switching plate 160 can be stacked in sequence, wherein the first flow path switching plate 150 is used to make the tap water The flow path turns from the rear to the front, and the second flow path conversion plate 160 is used to turn the flow path of the heating water from the rear to the front.

The first flow path conversion plate 150 may be formed with a heating water inflow hole 151 on one side of the lower part, and a heating part discharge hole 152 is formed on the other side of the upper part, and the other side of the lower part and the upper part are configured to be blocked in the front and rear. The shape of the second channel switching plate 150 is configured in a shape in which the entire area is blocked from the front to the rear.

The second water pipe module 300 may be equipped with: a flow sensor 310 for sensing the flow of tap water flowing into the tap water inflow pipe L10; a supplementary water pipe L12 for receiving the inflow of tap water to supplement heating when the heating water is insufficient Water: water supply valve 320, which is equipped in the pipeline of the water supply pipe L12 and controls the flow of tap water.

technical effect

According to the boiler equipped with the check valve integrated with the water pipe pipe according to the present invention, inside the first water pipe module, there will be a three-way valve that switches the flow path of the heating water according to the heating mode and the hot water mode and with this The connected heating water supply and circulation flow path, the bypass pipe for preventing overpressure inside the heating piping, and the check valve are integrated into one body, which simplifies the structure of the water pipe and reduces the installation space. Damage to components caused by overpressure can improve durability.

In addition, the first water pipe module provides the flow path of heating water in heating mode or hot water mode and the bypass path of heating water when overpressure occurs in the heating piping, and the flow path of tap water and hot water in hot water mode and the second water pipe module of the supplementary path of the heating water are constituted in module units, and these modules are configured to be detachable from the hot water supply heat exchanger, thereby simplifying the assembly structure of the water pipe parts and reducing the number of parts, Therefore, the productivity of parts can be improved.

In addition, on the front panel of the hot water supply heat exchanger, heating water discharge guides are formed so that the distance between the heating water inflow pipe and the heating water outflow pipe, and the distance between the tap water inflow pipe and the hot water supply pipe are close to each other. part and the hot water discharge guide part, and the first water pipe module and the second water pipe module are detachable to the hot water supply heat exchanger, so that the size of the boiler can be realized, and the connection flow path of the water pipe can be shortened , so that the pressure loss caused by the pressure drop of the fluid can be reduced to improve the heat exchange performance of the boiler.

Description of drawings

FIG. 1 is a diagram schematically showing the constitution of a boiler having a check valve integrated with a water pipe pipe according to the present invention.

Fig. 2 is a combined perspective view of main parts of the boiler according to the present invention.

Fig. 3 is a perspective view showing Fig. 2 separated into module units.

FIG. 4 is an exploded perspective view of the heat exchanger shown in FIG. 3 .

Fig. 5 is a front view of the heat exchanger.

Fig. 6 is a sectional view taken along line A-A of Fig. 5 .

Fig. 7 is a cross-sectional view taken along line B-B of Fig. 5 .

FIG. 8 is a plan view of the first water pipe module shown in FIG. 3 .

Fig. 9 is a sectional view taken along line C-C of Fig. 8 .

Fig. 10 is a D-D line sectional view of Fig. 8

Fig. 11 is a sectional view taken along line E-E of Fig. 8 .

FIG. 12 is an exploded perspective view of the check valve shown in FIG. 11 .

Fig. 13 is a diagram showing a flow path of heating water in a heating mode in the boiler according to the present invention.

FIG. 14 is a diagram showing flow paths of heating water and tap water/hot water in a hot water mode in the boiler according to the present invention.

Fig. 15 shows the flow of heating water bypassed to prevent overpressure when the heating piping on the heating water supply side or the hot water supply heat exchanger side is closed in the boiler of the present invention. Path diagram.

Symbol Description

10: Expansion tank 20: Circulation pump

30: Main heat exchanger 100: Hot water supply heat exchanger

110: Front panel

110a, 120a, 130a, 140a, 150a, 160a: plane part

110b, 120b, 130b, 140b, 150b, 160b: flange part

110c: Heating water discharge guide part 110d: Hot water discharge guide part

111, 121, 131, 141, 151: Heating water inflow holes

131a, 132a, 143a, 144a, 151a, 161a: Boss portion

112, 123, 132, 142, 152: Heating water discharge holes

113, 123, 133, 143: tap water inflow holes

114, 124, 134, 144: hot water discharge holes

120: flat panel 130: first plate

135, 155: first bead 145, 165: second bead

140: the second plate 150: the first flow channel conversion plate

160: The second flow path conversion plate 200: The first water pipe module

201: housing 210: three-way valve

211: Motor 212: Cam part

213: Main shaft 214: Valve body

215: Elastic part 216: Valve sheet

216a, 216b: locking platform 220: check valve

221: Main body 222: Valve body

223: elastic member 224: fastening part

300: second water pipe module 310: flow sensor

320: Make-up water valve L1: Main heating water supply pipe

L2: Heating water supply pipe L3: Heating water return pipe

L4: Heating water circulation inflow pipe L5: Heating water circulation outflow pipe

L6: Heating water inflow pipe L7: Heating water outflow pipe

L8: Bypass pipe L9: Mains water supply pipe

L10: Tap water inflow pipe L11: Hot water supply pipe

L12: water supply pipe P1: heating water flow path

P2: Tap water flow path

detailed description

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

Referring to Fig. 1 to Fig. 3, the boiler according to one embodiment of the present invention includes: an expansion tank 10, which stores the heating water that returns to the place where heating is needed in the heating mode or the heating water that circulates inside the boiler in the hot water mode. water; circulation pump 20, pressurizing the heating water discharged from the expansion tank 10 along one direction; main heat exchanger 30, heating the heating water flowing in through the circulation pump 20 with the help of the combustion heat of the heater; hot water a supply heat exchanger 100 for supplying hot water by means of heat exchange between heating water heated in the main heat exchanger 30 and tap water; a first water pipe module 200 for supplying heating supplied from the main heat exchanger 30 The flow path of water returning through the place where heating is required or the hot water supply heat exchanger 100 and the bypass path for preventing overpressure in the heating pipe; and the second water pipe module 300, which provides the heat The flow paths of tap water and hot water and the replenishment flow path of heating water in the exchanger 100 .

Also, the reference numeral "L1" shown in FIG. 1 denotes a heating water main supply pipe for supplying heating water heated in the main heat exchanger 30 to the three-way valve 210; The heating water is supplied from the three-way valve 210 to the heating water supply pipe at the place where heating is required; "L3" indicates that the heating water passing through the place where heating is required is returned to the heating water return pipe of the expansion tank 10; "L4" indicates that the water from the expansion tank The heating water discharged from the water tank 10 is supplied to the heating water circulation inflow pipe of the circulation pump 20; "L5" indicates the heating water circulation outflow pipe for supplying the heating water pressured from the circulation pump 20 to the main heat exchanger 30; "L6" indicates In the hot water mode, the heating water is supplied from the three-way valve 210 to the heating water inflow pipe of the hot water supply heat exchanger 100; "L7" is to make the heating water flow from the hot water supply heat exchanger 100 to the heating water return pipe L3 The heating water outflow pipe; "L8" is the bypass pipe to discharge the heating water from the three-way valve 210 to the heating water return pipe L3 to prevent the overpressure state in the heating piping; "L9" is to let the tap water flow into the interior Tap water supply pipe; "L10" is the tap water inflow pipe that makes tap water flow into the hot water supply heat exchanger 100 from the flow sensor 310 for sensing the flow of tap water; The heated hot water is supplied to the hot water supply pipe where the hot water is needed; "L12" is a replenishment pipe that makes the tap water flowing into the tap water supply pipe L9 flow into the expansion tank 10 when the heating water is insufficient.

As shown in FIG. 3 , in the present invention, the first water pipe module 200 and the second water pipe module 300 are respectively composed of module units, and are detachably assembled in the hot water supply heat exchanger 100 , so that the water pipes and the water pipes for heating water can be simplified. Structure of pipes for running water/hot water. As a configuration for this, the first water pipe module 200 is equipped with a three-way valve 210 for switching the flow path of heating water, so that the water heated in the main heat exchange 30 and supplied through the main heating water supply pipe L1 The heating water is supplied to the place where heating is required through the heating water supply pipe L2, or the heating water is selectively supplied to the side of the hot water supply heat exchanger 100 through the heating water inflow pipe L6; the bypass pipe L8 connects the three-way The valve 210 is connected to the heating water return pipe L3; the check valve 220 is equipped with the bypass pipe L8, when it is connected to the heating water supply pipe L2 where the heating is required or connected to the hot water supply side of the heat exchanger 100 When the piping of the heating water inflow pipe L6 is closed and overpressure occurs in the heating piping, the fluid is allowed to flow only in one direction from the three-way valve 210 to the heating water return pipe L3.

The second water pipe module 300 is equipped with: a flow sensor 310, which is used to sense the flow of tap water flowing in through the tap water supply pipe L9 in the hot water mode; Heating water; water supply valve 320, which is equipped in the pipeline of the water supply pipe L12 and controls the flow of tap water.

Referring to FIGS. 4 to 7 , the hot water supply heat exchanger 100 is composed of a plate heat exchanger formed by stacking a plurality of plates 110 , 120 , 130 - 1 , 140 - 1 , 130 - 2 , 140 - 2, 130-3, 140-3, 130-4, 140-4, 150, 160, and the heating water flow path P1 and the tap water flow path P2 are formed separately from each other so that the hot water supply heat exchanger 100 Inside, heating water and tap water flow alternately in each layer and realize heat exchange. In Fig. 3 and Fig. 4, the solid line arrows indicate the flow path of heating water, the dotted line arrows represent the flow paths of tap water and hot water, and Fig. 6 and Fig. 7 show that the heating water flow path P1 and the tap water flow path P2 are separated from each other for each layer. Alternate situations.

Referring to FIG. 4, among the plurality of plates 110, 120, 130-1, 140-1, 130-2, 140-2, 130-3, 140-3, 130-4, 140-4, 150, 160 , a flat panel 120 is stacked behind the front panel 110, and a first panel 130; ; 140-1, 140-2, 140-3, 140-4. That is, behind the flat panel 120, the first board 130-1, the second board 140-1, the first board 130-2, the second board 140-2, the first board 130-3, and the second board are sequentially stacked. 140-3, the first plate 130-4, and the second plate 140-4. However, in this embodiment, although the case where the first plate 130 and the second plate 140 are constituted as four pairs of plates is taken as an example, the laminated layers of the first plate 130 and the second plate 140 The quantities of can obviously be structured differently.

Furthermore, the first flow path switching plate 150 for switching the flow path of hot water from the rear to the front and the second flow path switching plate 160 for switching the flow path of heating water from the rear to the front are stacked behind it.

The plurality of plates 110, 120, 130-1, 140-1, 130-2, 140-2, 130-3, 140-3, 130-4, 140-4, 150, 160 each include a rectangular planar portion 110a, 120a, 130a, 140a, 150a, 160a and flange portions 110b, 120b, 130b, 140b, 150b, 160b protruding forward from their edge portions by a predetermined length, and the plates stacked adjacently in the front and back in the method The flange parts 110b, 120b, 130b, 140b, 150b, 160b are welded together, so that adjacently stacked plates are separated by a predetermined distance to form the heating water flow path P1 and the tap water flow path P2, while blocking the The fluid flowing in the heating water flow path P1 and the tap water flow path P2 is controlled to prevent the fluid from leaking to the outside.

In order to facilitate the attachment and detachment between the hot water supply heat exchanger 100 and the first water pipe module 200 and the second water pipe module 300 constituted as modules, the front panel 110 of the hot water supply heat exchanger 100 is formed with a The dual channel structures 110c and 110d of the heating water discharge channel and the hot water discharge channel, that is, the heating water discharge guide 110c and the hot water discharge guide 110d are formed.

As a structure for realizing this, a heating water inflow hole 111 connected to the heating water inflow pipe L6 is formed on the lower side of the front panel 110, and a heating water inflow hole 111 connected to the heating water outflow is formed on the side of the heating water inflow hole 111. The heating water discharge hole 112 of the pipe L7, and the heating water discharge guide part 110c is formed to guide the heating water discharged forward toward the other side of the upper part of the front panel 110 after passing through the heating water flow path P1. Exhaust hole 112 .

Moreover, a tap water inflow hole 113 connected to the tap water inflow pipe L10 is formed on the other side of the lower portion of the front panel 110, and in the upper portion of the front panel 110, in a region where the heating water discharge guide portion 110c is not formed, it is connected to the tap water inlet pipe L10. A hot water discharge hole 114 connected to the hot water supply pipe L11 is formed at a position close to the tap water inflow hole 113, and the hot water discharge guide portion 110d is formed so as to direct toward the upper part of the front panel 110 after passing through the tap water flow path P2. The hot water discharged from the side to the front is guided to the hot water discharge hole 114 .

The flat panel 120 stacked behind the front panel 110 has a heating water inflow hole 121 formed on one side of the lower part, a heating water discharge hole 122 formed on the other side of the upper part, and a tap water inflow hole 123 formed on the other side of the lower part. , and a hot water discharge hole 124 is formed on one side of the upper part. Edges of the heating water discharge guide 110c and the hot water discharge guide 100d are welded in close contact with the flat surface 120a of the flat panel 120, and the heating water discharge guide 110c and the hot water discharge guide 100d The inner side of the edge protrudes forward to form a discharge flow path for heating water and hot water.

The first plate 130 stacked behind the flat panel 120 has a heating water inflow hole 131 formed on one side of the lower part, a heating water discharge hole 132 formed on the other side of the upper part, and a tap water inflow hole formed on the other side of the lower part. 133, and a hot water discharge hole 134 is formed on the upper side. In addition, bosses protruding forward from the edges of the heating water inflow hole 131 and the heating water discharge hole 132 of the first plate 130 to be in close contact with the edges of the heating water inflow hole 121 and the heating water discharge hole 122 of the flat panel 120 are formed. 131a, 132a, and a plurality of first beads 135 protruding forward to be bent to one side are formed on the planar portion 130a of the first plate 130.

The second plate 140 stacked behind the first plate 130 has a heating water inflow hole 141 formed on one side of the lower part, a heating water discharge hole 142 formed on the other side of the upper part, and a tap water inflow hole formed on the other side of the lower part. hole 143, and a hot water discharge hole 144 is formed on the upper side. In addition, at the edges of the tap water inflow hole 143 and the hot water discharge hole 144 of the second plate 140, there are formed bosses that protrude forward and are in close contact with the edges of the tap water inflow hole 133 and the hot water discharge hole 134 of the first plate 130. 143a, 144a, and a plurality of second bead 145 bent along the direction opposite to the first bead 135 is formed on the planar portion 140a of the second plate 140 .

The heating water flow path P1 and the tap water flow path P2 can be alternately formed in separate layers by the boss portions 131a, 132a formed on the first plate 130 and the boss portions 143a, 144a formed on the second plate 140 . That is, by means of the bosses 131a, 132a formed on the first plate 130, the flow of tap water can be realized between the flat panel 120 and the first plate 130, but the flow of heating water is blocked, thereby forming a tap water flow path. P2, and with the help of the bosses 143a, 144a formed on the second plate 140, the flow of heating water can be realized between the first plate 130 and the second plate 140, but the flow of tap water is blocked, thus forming Heating water flow path P1.

Moreover, if the first plate 130 and the second plate 140 are overlapped, the fluid flowing through the overlapping gap between the first bead 135 formed on the first plate 130 and the second bead 145 formed on the second plate 140 The flow of the water promotes turbulent flow, so that the heat exchange efficiency between the heating water and the tap water will increase.

A plurality of the first plates 130 and the second plates 140 are alternately stacked, and the first flow channel conversion plate 150 stacked behind the rearmost second plate 140-4 forms a heating plate on one side of the lower part. In the water inflow hole 151, a heating water discharge hole 152 is formed on the other side of the upper part, and the other side of the lower part and the upper side are formed in a shape with the front and rear blocked, so that the second plate 140-4 and the first flow path are switched. In the tap water flow path P2 between the plates 150, the flow path of the tap water is switched to face forward. Furthermore, a plurality of first beads 155 that are bent toward one side and protrude forward are formed on the planar portion 150 a of the first flow path switching plate 150 .

The planar part 160a of the second channel switching plate 160 laminated on the rear of the first channel switching plate 150 is configured in a shape in which the front and rear of the entire area are blocked, so that the first channel switching plate 150 and the second channel are closed. In the heating water flow path P1 between the switching plates 160, the heating water flow path is switched to face forward. Furthermore, a plurality of second beads 165 that are bent toward the other side and protrude forward are formed on the planar portion 160 a of the second flow path switching plate 160 .

According to the configuration of the hot water supply heat exchanger 100 as described above, the stacked plates 110, 120, 130-1, 140-1, 130-2, 140-2, 130-3, 140-3, 130 -4, 140-4, 150, 160, the heating water flow path P1 communicating from one side of the lower part to the other side of the upper part and the tap water flow path P2 communicating from the other side of the lower part to the upper side are formed alternately, and The flow of the fluid flowing through the overlapped gap between the first bead 135, 155 and the second bead 145, 165 promotes turbulent flow, thereby improving heat exchange efficiency between heating water and tap water.

Furthermore, the front panel 110 is provided with a heating water discharge guide portion 110c that guides the heating water discharged through the heating water flow path P1 to the heating water discharge hole 112 formed adjacent to the heating water inflow hole 111 side. The hot water discharge guide part 110d guides the hot water discharged after passing through the tap water flow path P2 to the hot water discharge hole 114 formed at a position closest to the tap water inflow hole 113, so that the first water pipe module can be configured to 200 and the second water pipe module 300 are easily attached to and detached from the hot water supply heat exchanger 100 .

In addition, the distance between the heating water inflow pipe L6 and the heating water outflow pipe L7 connected to the hot water supply heat exchanger 100 is formed close, so that The size of the first water pipe module 200 is miniaturized.

Similarly, by making the distance between the tap water inflow pipe L10 and the hot water inflow pipe L11 connected to the hot water supply heat exchanger 100 close to each other, it is also possible to combine the tap water inflow pipe L10 and the hot water in a compact size. The size of the second water pipe module 300 of the supply pipe L11.

In this case, the heating water inflow hole 111 and the heating water discharge hole 112 are formed on one side of the hot water supply heat exchanger 100, and the tap water inflow hole 113 and the hot water discharge hole 114 are formed on a The areas of the water inflow hole 111 and the heating water discharge hole 112 are separated to the other side so that the first water pipe module 200 and the second water pipe module 300 can be combined to both sides of the hot water supply heat exchanger 100 .

Hereinafter, the channel conversion and bypass structure of the heating water provided inside the first water pipe module 200 will be described in detail with reference to FIGS. 8 to 12 .

The first water pipe module 200 is equipped with a three-way valve 210 for selectively switching the flow path of the heating water flowing in from the heating water main supply pipe L1 connected to one side of the housing 201 to the connection The heating water supply pipe L2 on the lower side of the housing 201 or the heating water inflow pipe L6 connected to the other side of the housing 201, and communicated with the side wall of the housing 201 on one side of the three-way valve 210. The bypass pipe L8, and the pipeline of the bypass pipe L8 is equipped with a check valve 220 .

As described above, in the casing 201 of the first water pipe module 200, the pipes connected to the main heating water supply pipe L1, the heating water supply pipe L2, the heating water inflow pipe L6, and the bypass pipe L8 are integrally formed, so that the heating can be integrated. The water pipe structure is compact, and the pipe length of the water pipe can be shortened compared with the conventional structure where the water pipes are individually provided, so that the pressure loss of the heating water can be reduced, and the thermal efficiency of the boiler can be improved.

The three-way valve 210 includes the following components: a motor 211; a cam member 212, which is connected to the rotating shaft of the motor 211; a main shaft (shaft) 213, whose upper end is supported and lifted by the cam member 212; a valve body 214, which is connected to the The outer surface of the lower part of the main shaft 213; the elastic member 215 applies an upward elastic force to the main shaft 213 so that the upper end of the main shaft 213 remains in contact with the lower end of the cam member 212; The upper locking platform 216a that locks the upper end of the valve body 214 and the lower locking platform 216b that locks the lower end of the valve body 214, so that the heating water flows into the casing 201 through the main heating water supply pipe L1 The flow path of the heating water in the interior is selectively switched to the heating water supply pipe L2 or the heating water inflow pipe L6.

The bypass pipe L8 is formed through the side wall of the housing 201 in the area between the upper locking platform 216a and the lower locking platform 216b of the valve sheet 216, and is formed to communicate with the heating water return pipe L3.

Referring to FIGS. 11 and 12 , the check valve 220 is composed of the following elements: a main body 221 formed with an inlet 221 a connected to the bypass pipe L8 formed on the side wall of the housing 201 The valve body 222 is composed of a shaft portion 222a and a valve portion 222b inserted into the main body portion 221, thereby opening and closing the flow path of the heating water flowing in through the inlet 221a; the elastic member 223 is sandwiched between The outer periphery of the shaft part 222a provides elastic force to the valve part 222b in the direction of closing the flow path of heating water; the fastening part 224 is formed inside the shaft part 222a for the valve body 222 The combined insertion groove 224a is fastened to the main body portion 221 .

According to the configuration of the check valve 220 as described above, only when the water pressure of the heating water flowing into the inflow port 221a of the main body 221 exceeds the elastic force of the elastic member 223 and an overpressure occurs in the heating pipe, the heating is opened. The water flow path is such that the heating water flows to the heating water return pipe L3 through the bypass pipe L8, and when the water pressure of the heating water acts at a pressure lower than the elastic force of the elastic member 223, the valve body 222 will be kept The state of closing the flow path of heating water.

Hereinafter, the heating mode and the hot water mode of the boiler and the flow paths of heating water and hot water when overpressure occurs will be described with reference to FIGS. 13 to 15 .

13, in the heating mode, the heating water heated in the main heat exchanger 30 is supplied to the side of the three-way valve 210 along the heating water main supply pipe L1, and in this case, the three-way valve 210 is set The heating water passing through the three-way valve 210 is supplied to a place where heating is required along the heating water supply pipe L2 by being closed toward the heating water inflow pipe L6 side and opening toward the heating water supply pipe L2 side. The heating water that has transferred heat through the heating needs flows into the expansion tank 10 through the heating water return pipe L3, and the heating water stored in the expansion tank 10 can be circulated along the heating water inflow pipe L4 and the heating water by the operation of the circulation pump 20. The water circulates out of the pipe L5 to be supplied to the main heat exchanger 30 and heated, and thereafter circulates.

Referring to FIG. 14 , in the hot water mode, heating water heated in the main heat exchanger 30 is supplied to the side of the three-way valve 210 along the heating water main supply pipe L1 , and in this case, the three-way valve 210 is The heating water passed through the three-way valve 210 is supplied to the hot water supply heat exchanger 100 along the heating water inflow pipe L6 by being closed toward the heating water supply pipe L2 side and open toward the heating water inflow pipe L6 side. The heating water that has transferred heat to tap water in the hot water supply heat exchanger 100 flows into the expansion tank 10 along the outflow pipe L7 and the heating water return pipe L3 , and the heating water stored in the expansion tank 10 is operated by the circulation pump 20 On the other hand, it is supplied to the main heat exchanger 30 along the heating water circulation inflow pipe L4 and the heating water circulation outflow pipe L5 , is heated, and then circulates.

At the same time, the tap water flowing in through the tap water supply pipe L9 is supplied to the hot water supply heat exchanger 100 through the tap water inflow pipe L10 via the flow sensor 310 , and the flow of heating water is transferred via the hot water supply heat exchanger 100 . The heated hot water is supplied to places requiring hot water through the hot water supply pipe L11.

15, in the heating mode, the heating water supply pipe L2 connected from the three-way valve 210 to the place where heating is required is closed, or in the hot water mode, connected from the three-way valve 210 to the side of the hot water supply heat exchanger 100 When the heating water inflow pipe L6 is closed and overpressure occurs in the heating pipe, the check valve 220 of the bypass pipe L8 is opened, and the heating water is supplied to the three-way valve 210 through the main heating water supply pipe L1. Water flows into the expansion tank 10 through the bypass pipe L8 and the heating water return pipe L3, and the overpressure state generated in the heating piping is released. Therefore, it is possible to prevent damage to other components including the circulation pump 20 caused when overpressure occurs in the heating piping, thereby improving durability.

In this specification, a case where heat exchange between heating water and tap water is realized in the hot water supply heat exchanger 10 is presented as an example, but the hot water supply heat exchanger 100 may be in different places other than water. The case of heat exchange between two fluids can also be employed.

As described above, the present invention is not limited to the above-mentioned embodiments, and within the scope of the technical idea of the present invention requested in the claims, obvious modifications can be realized by those having basic knowledge in the field, and Such variant implementations are within the scope of the present invention.

Claims (11)

1. A boiler with check valves integrated with water pipes, with a main heat exchanger (30) for heating heating water by means of combustion heat of a heater and a main heat exchanger (30) The hot water supply heat exchanger (100) for supplying hot water by obtaining heat exchange between heated heating water and tap water, is characterized by comprising: The three-way valve (210) is used to switch the flow path of the heating water so as to supply the heating water heated in the main heat Water is supplied to the heat exchanger (100) side; A bypass pipe (L8) connects the three-way valve (210) and the heating water return pipe (L3), and the heating water return pipe (L3) connects the place where heating is required and the main heat exchanger (30); as well as A check valve (220) is provided in the pipeline of the bypass pipe (L8), and is connected to the heating pipe (L2) on the heating demand side or connected to the hot water supply heat exchanger (100 ) side of the heating pipe (L6) is closed and overpressure occurs, the flow of fluid is only allowed in one direction from the three-way valve (210) to the heating water return pipe (L3), The three-way valve (210), the bypass pipe (L8) and the check valve (220) are integrated in the same water pipe module. 2. The boiler with the check valve integrated with the water pipe as claimed in claim 1, characterized in that, The heating pipes (L4, L5) connected to the heating water return pipe (L3) are equipped with a circulation pump (20) for pressure-feeding heating water in one direction toward the main heat exchanger (30) side. 3. The boiler with the check valve integrated with the water pipe as claimed in claim 1, characterized in that, When the heating pipe (L2) connected to the heating demand side or the heating pipe (L6) connected to the hot water supply heat exchanger (100) side is closed and overpressure occurs, The heating water heated in the main heat exchanger (30) is supplied to the three-way valve (210) and flows into the bypass pipe (L8) communicated at one side of the three-way valve (210), and flow into the expansion tank (10) after passing through the check valve (220), and the heating water stored in the expansion tank (10) flows to the main heat exchanger (30) through the circulation pump (20) Circulating flow prevents overpressure in heating piping. 4. The boiler with the check valve integrated with the water pipe as claimed in claim 1, characterized in that, The hot water supply heat exchanger (100) is constructed in such a manner that a plurality of plates are stacked, and the heating water flow path (P1) and the tap water flow path (P2) are formed separately from each other to exchange heat during the hot water supply. The interior of the device (100) makes heating water and tap water flow alternately in each layer and realizes heat exchange, The front panel (110) located at the front among the plurality of panels is formed with a heating water discharge guide part (110c) so that the heating water outflow pipe (L7) is positioned close to the heating water inflow pipe (L6) The flow path of heating water is formed in such a manner that the heating water outflow pipe (L7) allows the heating water to flow through the heating water flow after flowing into the heating water inflow pipe (L6) formed on the lower side of the front panel (110). and the hot water discharge guide part (110d), so that the hot water outflow pipe (L11) is located in a position close to the tap water inflow pipe (L10) to form a hot water flow path, the The hot water outflow pipe (L11) allows hot water to flow into the tap water inflow pipe (L10) formed on the other side of the lower part of the front panel (110) and then discharge through the tap water flow path (P2), And include: a first water pipe module (200), one side is removably assembled on the heating water inflow pipe (L6) and the heating water outflow pipe (L7) of the hot water supply heat exchanger (100), and the three-way The valve (210) is integrated with the bypass pipe (L8) and the check valve (220) so that the heating water supplied from the main heat exchanger (30) passes through the place where heating is needed or the hot water supply heat exchanger ( 100) and return flow path; The second water pipe module (300), one side is detachably assembled on the tap water inflow pipe (L10) and the hot water supply pipe (L11) of the hot water supply heat exchanger (100), and provides A flow path of tap water and hot water of the heat exchanger (100). 5. The boiler with the check valve integrated with the water pipe as claimed in claim 4, characterized in that, A heating water inflow hole (111) connected to the heating water inflow pipe (L6) is formed on the lower side of the front panel (110), A heating water discharge hole (112) connected to the heating water outflow pipe (L7) is formed on one side of the heating water inflow hole (111), The heating water discharge guide part (110c) is formed to guide the heating water discharged forward toward the other upper side of the front panel (110) to the heating water discharge hole (112). 6. The boiler with the check valve integrated with the water pipe as claimed in claim 5, characterized in that, A tap water inflow hole (113) connected to the tap water inflow pipe (L10) is formed on the other side of the lower part of the front panel (110), On the upper part of the front panel (110), in the area where the heating water discharge guide portion (110c) is not formed, at a position close to the tap water inflow hole (113) is formed a Hot water discharge hole (114) of pipe (L11), The hot water discharge guide (110d) is formed to guide the hot water discharged forward toward the upper side of the front panel (110) to the hot water discharge hole (114). 7. The boiler with the check valve integrated with the water pipe as claimed in claim 6, characterized in that, A flat panel (120) is stacked behind the front panel (110), and a heating water inflow hole (121) is formed on one side of the lower part of the flat panel (120), and a heating water discharge hole is formed on the other side of the upper part. (122), a tap water inflow hole (123) is formed on the other side of the lower part, and a hot water discharge hole (124) is formed on one side of the upper part, The edges of the heating water discharge guide (110c) and the hot water discharge guide (100d) are in close contact with the flat panel (120), and the inner parts of the edges protrude forward to form heating water and hot water discharge guides (100d). Water discharge flow path. 8. The boiler with the check valve integrated with the water pipe as claimed in claim 7, characterized in that, At the rear of the flat panel (120), a plurality of first plates (130) and second plates (140) formed in such a way that the bosses located in the diagonal direction are staggered back and forth are alternately stacked to form alternately The heating water flow path (P1) and the tap water flow path (P2), A plurality of first bead (135) and second bead (145) bent in opposite directions are formed on the first plate (130) and second plate (140), and are configured to allow fluid to flow to the The overlapping gap of the first bead (135) and the second bead (145). 9. The boiler with the check valve integrated with the water pipe as claimed in claim 8, characterized in that, Behind the second plate (140) that is stacked at the rear, a first flow path switching plate (150) and a second flow path switching plate (160) are sequentially stacked, wherein the first flow path switching plate ( 150) is used to turn the flow path of tap water from the rear to the front, and the second flow path conversion plate (160) is used to turn the flow path of heating water from the rear to the front. 10. The boiler with the check valve integrated with the water pipe as claimed in claim 9, characterized in that, The first channel conversion plate (150) is formed with a heating water inflow hole (151) on one side of the lower part, and a heating part discharge hole (152) is formed on the other side of the upper part, and the other side of the lower part and the upper side are configured as The shape of the front and rear is blocked, The second flow path conversion plate (150) is configured in a shape in which the entire area is blocked from the front to the rear. 11. The boiler with the check valve integrated with the water pipe as claimed in claim 4, characterized in that, The second water pipe module (300) is equipped with: a flow sensor (310), used to sense the flow of tap water flowing into the tap water inflow pipe (L10); Receiving the inflow of tap water to supplement the heating water; the replenishment valve (320) is equipped with the pipeline of the replenishment pipe (L12) and controls the flow of tap water.