Boiler capable of using hot water and heating water simultaneously

Abstract

The present invention relates to a boiler capable of simultaneously using hot water and heating water, which can simultaneously use hot water and heating. In the present invention, regardless of the use of hot water, heating water is separately supplied to a heating pipeline and returned, thus having an effect of minimizing heat loss of the heating water, and regardless of the use of heating water, hot water is separately supplied to a hot water pipeline and returned, thus having an effect of continuously supplying high-temperature hot water. Also, the functions of a hot water heat exchanger and a distributor (Low Loss Header) can be simultaneously used.

Description

Technical Field

[0001] This invention relates to a boiler capable of simultaneously using hot water and heating water, and more specifically, to a boiler capable of simultaneously using hot water and heating water. Background Technology

[0002] Generally, gas-fired boilers use gas as fuel and water as the heat medium for heating. Hot water / heating boilers are those that circulate heating water through a three-way valve within the boiler, heating the feedwater through indirect heat exchange, thus also allowing for the use of hot water. Gas-fired boilers are installed in various buildings such as homes, offices, and factories to supply hot water or heating water. They can be classified as ordinary boilers and condensing boilers based on whether condensate is generated, and as instantaneous boilers and storage boilers based on the hot water supply method.

[0003] The basic structure of this gas-fired boiler is that a combustion device and a heat exchanger are installed inside the shell. The combustion device is a space where a fuel-based flame, i.e., a gas-based flame, burns in a free flame of appropriate length. Afterward, the combustion gases discharged from the combustion device exchange heat with a heat medium in the heat exchanger and are discharged through the chimney.

[0004] Figure 1 This is an example diagram illustrating an existing condensing gas boiler. (As shown) Figure 1 As shown, in a conventional condensing gas boiler, a sensible heat exchange section 2 heated by the burner 1a is installed above the combustion section 1. A latent heat exchange section 3 heated by the exhaust gas passing through the sensible heat exchange section 2 is installed above the sensible heat exchange section 2. Furthermore, the hot water from the sensible heat exchange section 2 and the cold water supplied through the direct water supply pipe 4 exchange heat with each other through a hot water heat exchanger 5. A three-way valve 7 is installed between the hot water heat exchanger 5 and the sensible heat exchange section 2 to selectively supply the hot water from the sensible heat exchange section 2 to either the hot water heat exchanger 5 or the heating water supply pipe 6. In addition, a circulation pump 9 is installed between the latent heat exchange section 3 and the water tank 8. The water tank 8 is connected to the heating water return pipe 10, which is connected to the hot water heat exchanger 5, to recover the hot water that has exchanged heat with the cold water back to the water tank 8. After heating is provided by the circulation pump 9, the return water flows into the latent heat exchange section 3. The heating water flowing into the latent heat exchange section 3 exchanges heat with the exhaust gas passing through the sensible heat exchange section 2 to achieve preheating. The preheated heating water flows back into the interior of the sensible heat exchange section 2, where it is directly heated by the burner 1a. The heated hot water is then transported to the hot water heat exchanger 5 or the heating water supply pipe 6 via the three-way valve 7 to exchange heat with the cold water supplied through the direct water supply pipe 4 or to provide heating.

[0005] This existing technology uses a three-way valve 7 to deliver hot water to a hot water heat exchanger 5 or a heating water supply pipe 6. Therefore, the hot water heat exchanger cannot function during the process of delivering hot water to the heating water supply pipe 6, resulting in a problem of the hot water temperature dropping. Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] In order to solve the problems of the prior art, the present invention aims to provide a boiler that can use hot water and heating water simultaneously by separately setting hot water connection pipes and heating water connection pipes, and further can simultaneously use the functions of hot water heat exchanger and distributor (Low Loss Header).

[0008] Solution for solving the problem

[0009] To achieve the above objectives, the present invention provides a boiler capable of simultaneously using hot water and heating water, comprising a heat exchanger, the boiler including: a water tank located on one side of the heat exchanger and having an internal space; a shell covering the heat exchanger and the water tank; a first connecting pipe connecting the upper side of the heat exchanger and the upper side of the water tank; a second connecting pipe connecting the lower side of the heat exchanger and the lower side of the water tank; a coil tube located inside the water tank; a heating water connecting pipe connecting the water tank and the inlet of a heating pipe; a return water connecting pipe connecting the outlet of the heating pipe and the water tank; a direct water supply connecting pipe connecting a direct water supply pipe and one end of the coil tube; and a hot water connecting pipe connecting the other end of the coil tube to a hot water pipe.

[0010] Furthermore, a boiler capable of simultaneously using hot water and heating water is provided, wherein one side of the heating water connection pipe is connected to the upper side of the water tank, the other side of the heating water connection pipe is connected to the inlet of the heating pipe, one side of the return water connection pipe is connected to the outlet of the heating pipe, the other side of the return water connection pipe is connected to the lower side of the water tank, one side of the direct water supply connection pipe is connected to the direct water supply pipe, the other side of the direct water supply connection pipe passes through the upper part of the water tank and is connected to one end of the coil tube, one side of the hot water connection pipe is connected to one end of the coil tube, and the other side of the hot water connection pipe passes through the water tank and is connected to the inlet of the hot water pipe.

[0011] Furthermore, a boiler capable of simultaneously using hot water and heating water is provided, wherein the coil tube includes a first coil tube formed in a coil shape along the length of the inner periphery of the water tank; a second coil tube formed in a coil shape in the opposite direction to the inner periphery of the water tank and inside the first coil tube; and a connecting pipe connecting the lower side of the first coil tube and the lower side of the second coil tube to each other, wherein the direct water supply connecting pipe is connected to the first coil tube, and the hot water connecting pipe is connected to the second coil tube.

[0012] Furthermore, a boiler capable of simultaneously using hot water and heating water is provided, which further includes: a return water connection pipe, one side of which is connected to the outlet of the hot water pipe, and the other side of which is connected to the direct water supply pipe.

[0013] Furthermore, a boiler capable of simultaneously using hot water and heating water is provided, which further includes: an exhaust pipe protruding upward from the upper side of the water tank; and a switch valve disposed at the upper end of the exhaust pipe for opening or closing the exhaust pipe, wherein the heating water connection pipe is configured to be connected to one side of the exhaust pipe to supply the heating water supplied by the water tank to the heating pipe.

[0014] Furthermore, a boiler capable of simultaneously using hot water and heating water is provided, wherein the shell integrally covers the heat exchanger, the water tank, the first connecting pipe, and the second connecting pipe.

[0015] Invention Effects

[0016] In this invention, regardless of the use of hot water, heating water is supplied separately to the heating pipes and returned, thus minimizing the heat loss of the heating water. Furthermore, regardless of the use of heating water, hot water is supplied separately to the hot water pipes and returned, thus ensuring a continuous supply of high-temperature hot water, and allowing the simultaneous use of a hot water heat exchanger and a distributor (Low Loss Header).

[0017] Furthermore, since the heated water that has undergone heat exchange in the heat exchanger is supplied to the heating water connection pipe, the temperature of the heating water can always be maintained at a high temperature.

[0018] In addition, the direct water supply, which moves along the direct water supply connection pipe, travels along the first coil pipe and the second coil pipe for a longer period of time, thus staying in the water tank for an extended period of time, thereby improving the heat exchange efficiency between the heating water and the direct water supply contained in the water tank.

[0019] Furthermore, since the second coil tube is located inside the first coil tube, the second coil tube loses relatively less heat from the outside. As a result, the temperature of the second coil tube is maintained at a higher temperature than that of the first coil tube. Therefore, the hot water supplied to the second coil tube through the first coil tube is generated as hot water at a higher temperature when passing through the second coil tube.

[0020] In addition, one side of the return water connection pipe is connected to the outlet of the aforementioned hot water pipe, and the other side of the return water connection pipe is connected to the side of the aforementioned direct water supply pipe, thereby increasing the temperature of the direct water supply moving from the direct water supply pipe to the first coil pipe.

[0021] Furthermore, the heat exchanger and water tank are integrally covered by the housing, resulting in a compact and clean appearance. Also, since the first and second connecting pipes are located inside the housing, they are unaffected by external temperature changes, thus preventing heat loss from the first and second connecting pipes. Attached Figure Description

[0022] Figure 1 A diagram of an existing condensing gas boiler is shown as an example.

[0023] Figure 2 The diagram illustrates, for example, a boiler capable of simultaneously using hot water and heating water according to a preferred embodiment of the present invention.

[0024] Figure 3 The diagram illustrates, for example, the state of a boiler capable of simultaneously using hot water and heating water, with the shell removed according to a preferred embodiment of the present invention.

[0025] Figure 4 A diagram illustrating the coil tubes of a boiler capable of simultaneously using hot water and heating water according to a preferred embodiment of the present invention is provided as an example.

[0026] Figure 5 A top view illustrating, for example, the state of a boiler capable of simultaneously using hot water and heating water, according to a preferred embodiment of the present invention, with the shell removed.

[0027] Figure 6 To show Figure 5 A diagram of the A-A' section.

[0028] Figure 7 To show Figure 5 A diagram of the B-B' section.

[0029] Figure 8 To show Figure 5 A diagram of the C-C' cross section. Detailed Implementation

[0030] Hereinafter, with reference to the accompanying drawings, a boiler capable of simultaneously using hot water and heating water according to a preferred embodiment of the present invention will be described in more detail.

[0031] Figure 2 The diagram illustrates, by way of example, a boiler capable of simultaneously using hot water and heating water according to a preferred embodiment of the present invention. Figure 3 This diagram exemplarily illustrates a state in which the shell of a boiler capable of simultaneously using hot water and heating water has been removed according to a preferred embodiment of the present invention. Figure 4 This is an exemplary diagram showing the coil tube of a boiler capable of simultaneously using hot water and heating water according to a preferred embodiment of the present invention.

[0032] refer to Figures 2 to 4 According to a preferred embodiment of the present invention, a boiler 100 capable of simultaneously using hot water and heating water includes a heat exchanger 120, a water tank 130, a coil tube 160, a first connecting pipe 140, a second connecting pipe 150, and a housing 110.

[0033] The heat exchanger 120 is a conventional structure used to exchange heat between the combustion gas supplied by the combustion device and water, and it can be constructed from various known types of heat exchangers 120. A water tank 130 is located on one side of the heat exchanger 120 and is generally cylindrical or similar in shape. The interior of the water tank 130 forms an empty space for containing water.

[0034] The coil tube 160 includes a first coil tube 162 formed in a coil shape along the length of the inner periphery of the water tank 130, a second coil tube 164 formed in a coil shape in the opposite direction to the inner periphery of the water tank 130 and inside the first coil tube 162, and a connecting tube (not shown) that connects the lower side of the first coil tube 162 and the lower side of the second coil tube 164 to each other.

[0035] A first connecting pipe 140 connects the upper side of the heat exchanger 120 to the upper side of the water tank 130. A second connecting pipe 150 connects the lower side of the heat exchanger 120 to the lower side of the water tank 130. The water inside the heat exchanger 120 generates heating water during heat exchange with the combustion gases, and this heating water is supplied to the water tank 130 through the first connecting pipe 140. A portion of the heating water supplied to the water tank 130 raises the temperature of the coil tube 160 located inside the water tank 130, while the other portion is supplied to heating pipes. These heating pipes are embedded in the floors of places such as homes and offices to warm the indoor temperature.

[0036] The housing 110 integrally covers the heat exchanger 120, the water tank 130, the first connecting pipe 140, and the second connecting pipe 150. As described above, since the housing 110 covers the heat exchanger 120 and the water tank 130, the product has a compact and neat appearance. Furthermore, since the first connecting pipe 140 and the second connecting pipe 150 are located inside the housing 110, the first connecting pipe 140 and the second connecting pipe 150 are not affected by external temperature changes, thus preventing heat loss from the first connecting pipe 140 and the second connecting pipe 150.

[0037] Figure 5 To illustrate, a top view of a boiler capable of simultaneously using hot water and heating water, according to a preferred embodiment of the present invention, is shown. Figure 6 To show Figure 5 A diagram of the A-A' section. Figure 7 To show Figure 5 A diagram of the B-B' section.

[0038] refer to Figures 2 to 7 According to a preferred embodiment of the present invention, the boiler capable of using hot water and heating water simultaneously further includes: a heating water connection pipe 180 that connects the water tank 130 and the inlet of the heating pipe to each other; and a return water connection pipe 182 that connects the outlet of the heating pipe and the water tank 130 to each other.

[0039] One side of the heating water connection pipe 180 is connected to the upper side of the water tank 130, and the other side of the heating water connection pipe 180 is connected to the inlet of the heating pipe. One side of the return water connection pipe 182 is connected to the outlet of the heating pipe, and the other side of the return water connection pipe 182 is connected to the lower side of the water tank 130.

[0040] Furthermore, on the upper side of the water tank, an exhaust pipe 170 protrudes upwards, and a switch valve (not shown) is provided at the upper end of the exhaust pipe 170 for opening or closing the exhaust pipe 170. At this time, the heating water connection pipe 180 is connected to one side of the exhaust pipe 170, supplying heating water from the water tank 130 to the heating pipes. Also, when water vapor causes the pressure inside the water tank 130 to exceed the standard value, the switch valve will open, allowing the steam inside the water tank 130 to be discharged outwards through the exhaust pipe 170.

[0041] Furthermore, the heating water contained in the water tank 130 is discharged to the outside of the water tank 130 along the heating water connection pipe 180, and then moves to the inlet of the heating pipe to increase the temperature of the heating pipe and heat the room. The heating water that moves through the heating pipe to the outlet of the heating pipe returns to the water tank 130 along the return water connection pipe 182. As shown above, in this invention, regardless of the use of hot water, heating water is supplied separately to the heating pipe and returns, thus minimizing the heat loss of the heating water.

[0042] Furthermore, the heating water connection pipe 180 is connected to the upper part of the water tank 130, and the return water connection pipe 182 is connected to the lower side of the water tank 130. This utilizes the property that water rises with higher temperatures and sinks with lower temperatures. The relatively hot heating water located in the upper part of the water tank 130 is supplied to the heating pipe through the heating water connection pipe 180. At this time, the first connection pipe 140 is also located in the upper part of the water tank 130. Therefore, the hot heating water that has completed heat exchange in the heat exchanger 120 is supplied to the upper part of the water tank 130, and this hot heating water is supplied to the heating water connection pipe 180. As described above, since the hot heating water that has completed heat exchange in the heat exchanger is supplied to the heating water connection pipe 180, the temperature of the heating water can always be maintained at a high temperature.

[0043] On one hand, the relatively cold heating water from the heating pipes is led to the lower part of the water tank 130 via the return water connection pipe 182, and then flows back into the lower part of the heat exchanger 120 via the second connection pipe 150 and the circulation pump 152. The circulation pump 152 is installed at the end of the second connection pipe 150 connected to the heat exchanger 120.

[0044] Figure 8 To show Figure 5 A diagram of the C-C' cross section.

[0045] refer to Figures 2 to 8 According to a preferred embodiment of the present invention, the boiler capable of using hot water and heating water simultaneously further includes: a direct water supply connection pipe 190 that connects one end of the direct water supply pipe and the coil pipe 160 to each other; a hot water connection pipe 192 that connects the other end of the coil pipe 160 to the hot water pipe; and a return water connection pipe 194 that connects the outlet of the hot water pipe to the direct water supply pipe.

[0046] One side of the direct water supply connection pipe 190 is connected to the direct water supply pipe, and the other side of the direct water supply connection pipe 190 passes through the upper part of the water tank 130 and is connected to one end of the first coil pipe 162. One side of the hot water connection pipe 192 is connected to one end of the second coil pipe 164, and the other side of the hot water connection pipe 192 passes through the water tank 130 and is connected to the inlet of the hot water pipe. Furthermore, the direct water supply connection pipe 190, the hot water connection pipe 192, and the vent pipe 170 passing through the upper part of the water tank 130 are arranged separately from each other and do not overlap. One side of the return water connection pipe 194 is connected to the outlet of the hot water pipe, and the other side of the return water connection pipe 194 is connected to the side of the direct water supply pipe, thereby increasing the temperature of the direct water flowing from the direct water supply pipe to the first coil pipe 162.

[0047] Furthermore, since the direct water supply connection pipe 190 is connected to the first coil pipe 162, the direct water supplied from the direct water supply connection pipe 190 to the first coil pipe 162 exchanges heat with the heating water contained in the water tank 130 while moving along the first coil pipe 162 and the second coil pipe 164, thereby generating hot water. At this time, the direct water moves along the first coil pipe 162 and the second coil pipe 164 for a relatively long time, and therefore stays in the water tank 130 for a longer period of time, thereby improving the heat exchange efficiency between the heating water and the direct water contained in the water tank 130.

[0048] Furthermore, since the second coil tube 164 is located inside the first coil tube 162, it receives relatively less heat from the outside, thus maintaining a higher temperature than the first coil tube 162. Consequently, the hot water supplied to the second coil tube 164 via the first coil tube 162 is heated to a higher temperature upon passing through the second coil tube 164.

[0049] Furthermore, the hot water moving along the first coil tube 162 and the second coil tube 164 is supplied to the inlet of the hot water pipe through the hot water connection pipe 192 to supply hot water to places such as homes and offices. Also, when the temperature of the hot water supplied to the hot water pipe drops below a certain temperature, it is returned through the return water connection pipe 194 and resupplyed to the direct supply water connection pipe 190. As described above, this invention is independent of the use of heating water; hot water is supplied separately to the hot water pipe and returns, thus providing the effect of a continuous supply of high-temperature hot water.

[0050] Although the present invention has been described in detail in the above embodiments, the present invention is not limited thereto. It will be obvious to those skilled in the art that various changes and modifications can be made within the scope of the technical concept of the present invention. If the above changes and modifications are within the scope of the claims of the present invention, then their technical concept should also be considered to belong to the present invention.

[0051] Explanation of reference numerals in the attached figures

[0052] 100: Boiler;

[0053] 110: Shell; 120: Heat exchanger;

[0054] 130: Water tank; 140: First connecting pipe;

[0055] 150: Second connecting pipe; 152: Circulation pump;

[0056] 160: Coil tube; 162: First coil tube;

[0057] 164: Second coil tube; 170: Exhaust pipe;

[0058] 180: Heating water connection pipe; 182: Return water connection pipe;

[0059] 190: Direct water supply connection pipe; 192: Hot water connection pipe;

[0060] 194: Return water connection pipe.

Claims

1. A boiler capable of simultaneously using hot water and heating water, comprising a heat exchanger, characterized in that, include: A water tank located on one side of the heat exchanger, with an empty space inside; A housing covering the heat exchanger and the water tank; A first connecting pipe connecting the upper side of the heat exchanger and the upper side of the water tank; A second connecting pipe connects the lower side of the heat exchanger and the lower side of the water tank; The coil tube is located inside the water tank; A return water connection pipe connects the outlet of the heating pipe to the water tank. One side of the return water connection pipe is connected to the outlet of the heating pipe, and the other side of the return water connection pipe is connected to the lower side of the water tank. A direct water supply connection pipe that protrudes upward from the upper side of the water tank, connecting one end of the direct water supply pipe and one end of the coil tube to each other; A hot water connection pipe protrudes upward from the upper side of the water tank, connecting the other end of the coil tube to the hot water pipe; An exhaust pipe protrudes upwards from the upper side of the water tank; A switch valve is provided at the upper end of the exhaust pipe for opening or closing the exhaust pipe; A heating water connection pipe, with one side connected to the lower side of the exhaust pipe and the other side connected to the inlet of the heating pipe, supplies heating water from the water tank to the inlet of the heating pipe; and One side of the return water connection pipe is connected to the outlet of the hot water pipe, and the other side is connected to the side of the direct water supply connection pipe. Except for the other side of the return water connection pipe, the return water connection pipe is located inside the housing. The air inside the water tank flows upward from the top of the water tank along the vent pipe, while the heating water flows upward from the top of the water tank along the vent pipe and then changes direction at the lower part of the vent pipe connected to the heating water connection pipe before flowing into the heating water connection pipe. The part of the vent pipe connected to the heating water connection pipe is located closer to the top of the water tank than the switch valve.

2. The boiler capable of simultaneously using hot water and heating water according to claim 1, characterized in that, One side of the direct water supply connection pipe is connected to the direct water supply pipe, and the other side of the direct water supply connection pipe passes through the upper part of the water tank and is connected to one end of the coil tube. One side of the hot water connecting pipe is connected to one end of the coil tube, and the other side of the hot water connecting pipe passes through the water tank and connects to the inlet of the hot water pipe.

3. The boiler capable of simultaneously using hot water and heating water according to claim 1, characterized in that, The coil tube includes a first coil tube formed in a coil shape along the length of the inner periphery of the water tank; a second coil tube formed in a coil shape in a direction opposite to the inner periphery of the water tank and inside the first coil tube; and a connecting tube connecting the lower side of the first coil tube to the lower side of the second coil tube. The direct water supply connection pipe is connected to the first coil pipe. The hot water connection pipe is connected to the second coil tube.

4. The boiler capable of simultaneously using hot water and heating water according to claim 1, characterized in that, The housing integrally covers the heat exchanger, the water tank, the first connecting pipe, and the second connecting pipe.

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