TWI542840B - Liquid heating device - Google Patents

Description

Liquid heating device

The present invention relates to a heating device, and more particularly to a liquid heating device.

According to the improvement of modern people's living standards, water heaters have become one of the necessary devices for every household. The water tank of a general water heater has a water inlet, a water outlet and a heating device. After the cold water enters the water storage tank, it is heated by the heating device. The hot water is output to the outside through the water outlet. Since the water inlet, the water outlet and the heating device are disposed in the same open space, and the hot water heated in the water storage tank is released from the water outlet, the water inlet will be supplemented at the same time. The same amount of cold water, so the most common problem with conventional water heaters is that the cold water flowing into the water storage tank will immediately mix with the internal hot water, so that the hot water inside the water storage tank is rapidly cooled, so the hot water flowing out of the water outlet The temperature is not only unable to reach the temperature set by the water heater, but also has a large temperature difference, which causes the water to be cold and hot, causing inconvenience to the user and affecting the quality of use.

In addition, since the water inside the water heater generates heat when the water heater is used, the pressure inside the water storage tank becomes large. It is conventional that the water heater will have an exhaust valve at the top of the water storage tank to discharge the gas, but after the exhaust valve is used for a period of time, It is easy to cause failure and maintenance is not easy, so it will cause the conventional water heater to lose the regulation pressure. Therefore, when the pressure inside the water storage bucket is too large, the water heater may leak or be damaged, and there is a defect that needs to be improved.

Therefore, it is necessary to provide a novel and progressive liquid heating device to solve the above problems.

The main object of the present invention is to provide a liquid heating device having a separate furnace and a separate heating cylinder, which can quickly heat the cold liquid into a hot liquid for use, and excess heat energy can be communicated in the furnace. At least one conduit in the heating cylinder is thermally circulated with the furnace to heat the cold liquid in the furnace to avoid wasting excess heat energy, and can rapidly heat the cold liquid to provide hot liquid and save energy.

Moreover, the furnace tube and the heating cylinder have a vent pipe therein, and gas generated in the heating cylinder can flow to the furnace tube through the vent pipe, since the volume of the furnace tube is much larger than the volume of the heating cylinder, Effectively reducing the pressure in the heating cylinder to avoid causing excessive pressure inside the heating cylinder to cause water leakage or damage, compared with the conventional water heater installation exhaust valve is easy to cause damage, the vent pipe of the liquid heating device of the present invention The durability is higher and the manufacturing cost of the present invention can be made lower.

In order to achieve the above object, the present invention provides a liquid heating apparatus comprising a furnace, a heating cylinder, at least one liquid guiding tube and at least one venting tube. The drum is surrounded by a first internal space and has a first liquid outlet. The heating cylinder surrounds a second internal space and has a second liquid outlet. The at least one liquid guiding tube is in communication with the first liquid outlet and communicates with the first and second internal spaces. The at least one vent pipe includes a first port and a second port, and the at least one vent pipe communicates with the first inner space and the second inner space via the first port and the second port, the first The position of the port is higher than the position of the first liquid outlet, and the position of the second port is higher than the position of the second liquid outlet. Wherein, when the liquid level in the heating cylinder is higher than the second liquid outlet The first and second internal spaces are completely isolated from the outside world and only the vent pipe is in gas communication with the first and second internal spaces.

1‧‧‧Liquid heating device

32‧‧‧Second outlet

2‧‧‧furnace

3‧‧‧heating cylinder

4‧‧‧L-tube/catheter

5‧‧‧ snorkel

6‧‧‧Long liquid guiding tube

7‧‧‧ long catheter

21‧‧‧First internal space

22‧‧‧First outlet

23‧‧‧ inlet port

31‧‧‧Second internal space

33‧‧‧heating unit

41‧‧‧Opening

42‧‧‧Bend section

51‧‧‧ first port

52‧‧‧second port

61, 71‧‧‧ first on-off valve

62, 72‧‧‧Second on-off valve

63, 73‧‧‧ first connectivity path

64, 74‧‧‧ second connectivity path

1 is a side cross-sectional view of a preferred embodiment of the present invention.

1A is an enlarged partial cross-sectional view of FIG. 1.

FIG. 1B is a partial enlarged view of FIG. 1. FIG.

Figure 2 is a side cross-sectional view showing another embodiment of the present invention.

The following is a description of the possible embodiments of the present invention, and is not intended to limit the scope of the invention as claimed.

Referring to Figures 1, 1A and 1B, there is shown a preferred embodiment of the present invention. The liquid heating apparatus 1 of the present invention comprises a furnace 2, a heating cylinder 3, at least one liquid guiding tube 4 and at least one venting tube 5.

The furnace tube 2 defines a first internal space 21 and has a first liquid outlet 22. Preferably, the furnace 2 further includes a liquid inlet 23 for allowing an external water source to flow into the furnace. Furnace 2 It should be noted that in the present embodiment, water is used as the heating liquid, and in other embodiments, other liquids may be used.

The heating cylinder 3 has a second internal space 31 and a second liquid outlet 32. Preferably, the heating cylinder 3 further includes a heating unit 33 for heating the water in the heating cylinder 3, after heating. The hot water is output from the second liquid outlet 32 to the outside for use. It is to be noted that in the present embodiment, the heating unit 33 is an electric heating device. In other embodiments, the heating unit 33 It can be other devices such as solar thermal energy, fuel heating and heat pumps. Wherein, when the liquid level in the heating cylinder 3 is higher than the second liquid outlet 32, the first and second internal spaces 21, 31 are completely isolated from the outside and only the vent pipe 5 is in gas communication with the first One and second internal spaces 21, 31.

The at least one liquid guiding tube 4 communicates with the first liquid outlet 22 and communicates with the first inner space 21 and the second inner space 31 to make the water inside the first inner space 21 and the second inner space 31 Can circulate with each other. Specifically, in the embodiment, the at least one liquid guiding tube 4 includes an L-shaped tube 4 having a curved section 42 (as shown in FIGS. 1A and 1B), and preferably the L-shaped tube 4 is located at the first An opening 41 is further defined in the wall of the inner space 31. In detail, the curved section 42 is located in the second inner space 31. The opening of the tube wall outside the curved section 42 is further provided with the opening 41, so that the water between the first internal space 21 and the second internal space 31 can be circulated more quickly. It is to be understood that in other embodiments, the at least one liquid guiding tube may further include a straight tube and does not include the L-shaped tube 4, and the tube wall of the straight inner tube 31 may be separately opened. The opening 41 also allows the water flow between the first inner space 21 and the second inner space 31 to be made faster.

Preferably, the at least one liquid guiding tube may further comprise a long liquid guiding tube 6 connected between the furnace barrel 2 and the bottom of the heating cylinder 3. The long liquid guiding tube 6 includes a first switching valve 61 or/and a second switching valve 62. In the embodiment, the first switching valve 61 is disposed to communicate with the first internal space 21 and the second internal space. On one of the first communication paths 63, the second switching valve 62 is disposed on the second communication path 64 for communicating with the second internal space 31 and the outside. When the inside of the heating cylinder 3 is to be cleaned, only the second switching valve 62 needs to be opened and the first switching valve 61 is closed, the water located inside the heating cylinder 3 can flow out from the inside of the heating cylinder 3 and retain the The water in the furnace 2 is not to waste a lot of water resources; if the inside of the furnace 2 is also cleaned together, the first switching valve 61 and the second switching valve 62 are simultaneously opened to the furnace 2 Inside and the heating cylinder 3 The water inside is discharged together, and the inside of the furnace 2 and the inside of the heating cylinder 3 can be cleaned and trimmed.

In the present embodiment, the number of the vent pipes 5 is one. In other embodiments, the vent pipe 5 may be other numbers. The vent pipe 5 includes a first port 51 and a second port 52. The vent tube 5 communicating with the first internal space 21 and the second internal space 31 via the first opening 51 and the second opening 52, so that gas can flow through the first inner space 21 and the gas through the vent pipe 5 Between the second internal spaces 31, the position of the first opening 51 is higher than the position of the first liquid outlet 22, and the position of the second opening 52 is higher than the position of the second liquid outlet 32, so that The water in the furnace 2 and the heating cylinder 3 cannot flood the first port 51 and the second port 52 to ensure that gas can flow between the first inner space 21 and the second inner space 31. .

In actual operation, the water of the external water source flows into the drum 2 from the liquid inlet 23, and flows into the heating cylinder 3 via the L-shaped pipe 4 or/and the long liquid guiding pipe 6 to make the furnace 2 And the heating cylinder 3 has a sufficient amount of water. When the heating unit 33 in the heating cylinder 3 is heated, since the volume of the heating cylinder 3 is smaller than the volume of the furnace 2, the temperature of the heating cylinder 3 rises. Fast, avoiding a large amount of energy to heat the larger furnace 2, because the fluid has the physical characteristics of hot rise and fall, the heated hot water rises to a higher water level in the heating cylinder 3, if desired When hot water is used, hot water can be output to the outside through the second liquid outlet 32 for use in order to achieve rapid heating. When hot water is not used, the hot water heated by the heating unit 33 can flow into the drum 2 via the L-shaped tube 4 for thermal circulation to heat the cold water in the furnace 2, when the furnace 2 is located After the water temperature of the higher water level rises, the water at a lower water level also starts to increase in temperature. When the water of the furnace 2 reaches a predetermined temperature, the heating unit 33 can stop heating, and when the heating unit 33 stops heating. After that, the hot water located in the upper layer of the furnace tube 2 can flow back into the heating cylinder 3 via the L-shaped tube 4, and can be output to the second liquid outlet 32 via the second liquid outlet 32 if hot water is to be used. The outside is available for use, and the long liquid pipe 6 communicates with the bottom of the furnace 2 and the bottom of the heating cylinder 3, thereby accelerating the thermal cycle between the furnace 2 and the heating cylinder 3. Therefore, the present invention can avoid the loss of residual thermal energy, and the space inside the heating cylinder 3 can be instantaneously increased to achieve the function of rapidly supplying hot water.

It is worth mentioning that gas is generated during the heating of the water in the heating unit 33 in the heating cylinder 3, and the vent pipe 5 is connected to the inside of the furnace 2 and the heating cylinder 3, so the gas can be The inside of the heating cylinder 3 flows into the drum 2, and since the volume in the furnace 2 is larger than the volume in the heating cylinder 3, even if the gas in the heating cylinder 3 flows into the furnace 2 having a large volume The pressure inside the furnace 2 is not increased, and the gas in the heating cylinder 3 can be effectively reduced in the heating cylinder 3, so that the heating cylinder 3 can be effectively avoided. Excessive pressure causes the heating cartridge 3 to leak or be damaged.

With reference to FIG. 2, in another embodiment of the present invention, the at least one liquid guiding tube may further include a second long liquid guiding tube 7 connected between the furnace barrel 2 and the bottom of the heating cylinder 3, the length of the second length. The length of the catheter 7 is greater than the length of the L-tube 4 and the length of the secondary catheter 7 is shorter than the length of the long catheter 6. The long liquid guiding tube 7 similarly includes a first switching valve 71 or/and a second switching valve 72, and the first switching valve 71 is disposed to communicate with the first internal space 21 and the second internal space 31. The second switching valve 72 is disposed on the first communication path 73 for communicating with the second internal space 31 and one of the external second communication paths 74. When the interior of the heating cylinder 3 is to be cleaned, only the second switching valve 72 needs to be opened and the first switching valve 71 is closed, the water located inside the heating cylinder 3 can flow out from the inside of the heating cylinder 3 and retain the The water in the drum 2 is not to waste a lot of water resources; if the inside of the furnace 2 is also cleaned together, the first switching valve 71 and the second switching valve 72 are simultaneously opened to the inside of the furnace 2 And the water in the heating cylinder 3 is discharged together, that is, The inside of the furnace 2 and the inside of the heating cylinder 3 are cleaned and trimmed. The rest is the same as the above embodiment, so the description will not be repeated.

In summary, the liquid heating device of the present invention has the furnace tube and the heating cylinder, the heating cylinder can quickly heat the cold water into hot water for use, and the excess heat energy can be utilized in the furnace tube and at least in the heating cylinder. A conduit is thermally circulated with the drum to heat the cold water in the drum to avoid wasting excess heat, and can quickly heat the cold water to provide hot water and save energy.

And the vent tube is disposed in the furnace tube and the heating tube, the position of the first port is higher than the position of the first liquid outlet, and the position of the second port is higher than the position of the second liquid outlet The water in the furnace and in the heating cylinder can prevent the first port and the second port from being flooded to ensure that gas can flow through the vent pipe, so that gas generated in the heating cylinder can pass through The vent pipe flows to the furnace tube, and since the volume of the furnace tube is larger than the volume of the heating cylinder, the pressure in the heating cylinder can be effectively reduced, and the pressure inside the heating cylinder is prevented from being excessively caused to cause water leakage or damage.

In summary, the overall structural design, practicability and efficiency of the present invention are indeed fully in line with the needs of industrial development, and the disclosed structural invention is also an unprecedented innovative structure, so it has "novelty" should Undoubtedly, the invention can be more effective than the conventional structure, and therefore has "progressiveness", which fully complies with the requirements of the application requirements of the invention patents of the Chinese Patent Law, and is filed according to law, and please The bureau will review it early and give it affirmation.

1‧‧‧Liquid heating device

2‧‧‧furnace

3‧‧‧heating cylinder

4‧‧‧L-tube/catheter

5‧‧‧ snorkel

6‧‧‧Long liquid guiding tube

21‧‧‧First internal space

22‧‧‧First outlet

23‧‧‧ inlet port

31‧‧‧Second internal space

32‧‧‧Second outlet

33‧‧‧heating unit

41‧‧‧Opening

42‧‧‧Bend section

51‧‧‧ first port

52‧‧‧second port

61‧‧‧First on-off valve

62‧‧‧Second on-off valve

63‧‧‧First connectivity path

64‧‧‧Second communication path

Claims (10)

A liquid heating device comprising: a furnace having a first internal space and having a first liquid outlet; a heating cylinder surrounding a second internal space and having a second liquid outlet; a first liquid outlet connected to the first liquid outlet and communicating with the first and second inner spaces; at least one vent pipe comprising a first port and a second port, the at least one snorkel passing through the first The second opening is in communication with the first internal space and the second internal space, the position of the first opening is higher than the position of the first liquid outlet, and the position of the second opening is higher than the second liquid outlet a position of the mouth; wherein, when the liquid level in the heating cylinder is higher than the second liquid outlet, the first and second internal spaces are completely isolated from the outside and only the snorkel is gasly connected to the first Second internal space. The liquid heating device of claim 1, wherein the at least one liquid guiding tube comprises a long liquid guiding tube connected between the furnace barrel and the bottom of the heating cylinder. The liquid heating device of claim 2, wherein the long liquid guiding tube comprises a first switching valve or a second switching valve, the first switching valve being disposed to communicate with one of the first and second internal spaces In a communication path, the second switching valve is disposed on a second communication path for communicating with the second internal space and the outside. The liquid heating device of claim 1, wherein the at least one liquid guiding tube comprises a second long liquid guiding tube connected between the furnace tube and the bottom of the heating tube, wherein the length of the second long liquid guiding tube is greater than the liquid guiding tube . The liquid heating device of claim 4, wherein the secondary long liquid guiding tube comprises a first switching valve Or a second switching valve, the first switching valve is disposed on a first communication path for communicating with the first and second internal spaces, and the second switching valve is disposed to communicate with the second internal space and the outside On a second communication path. The liquid heating device of claim 1, wherein the liquid guiding tube is located at an opening of the tube wall of the second internal space. The liquid heating device of claim 1, wherein the liquid guiding tube is an L-shaped tube having a curved section, the curved section being located in the second internal space. The liquid heating device of claim 7, wherein the tube wall outside the curved section is further provided with an opening. The liquid heating device of claim 2, wherein the long liquid guiding tube comprises a first switching valve and a second switching valve, the first switching valve being disposed to communicate with one of the first and second internal spaces In a communication path, the second switching valve is disposed on a second communication path for communicating with the second internal space and the outside. The liquid heating device of claim 4, wherein the second long liquid guiding tube comprises a first switching valve and a second switching valve, wherein the first switching valve is disposed to communicate with one of the first and second internal spaces. In a communication path, the second switching valve is disposed on a second communication path for communicating with the second internal space and the outside.