Titanium alloy heating tube and instant water heater

Abstract

The utility model relates to a titanium alloy heating pipe, including pipe body, first end cover, second end cover, be equipped with with the liquid inlet pipe of pipe body inner chamber intercommunication on first end cover, be equipped with with the liquid outlet pipe of pipe body inner chamber intercommunication on second end cover, the pipe body includes stainless steel base body, sets up heating layer on the base body outer wall and sets up titanium pipe layer on the base body inner wall. This titanium alloy heating pipe can solve the problem of peculiar smell. The utility model relates to still relate to a instant drinking water machine, including water tank, vapor liquid separator, aforementioned titanium alloy heating pipe, water tank is connected with the liquid inlet pipe in titanium alloy heating pipe through the connecting pipe, and vapor liquid separator is connected with the liquid outlet pipe in titanium alloy heating pipe, water tank, vapor liquid separator all include stainless steel body and set up titanium material layer on the stainless steel body inner wall, and the connecting pipe is 304 / 316 stainless steel pipe. This instant drinking water machine solves the problem of peculiar smell of drinking water, guarantees user's safe and healthy instant drinking water machine of using simultaneously.

Description

Technical Field

[0001] This utility model relates to a titanium alloy heating tube, and also to an instant hot water dispenser that uses a titanium alloy heating tube. Background Technology

[0002] Existing instant water dispensers typically consist of a heating element, water pipes, a water tank, and a vapor-liquid separator. The heating element is mostly made of stainless steel welded pipe, primarily SUS430, which is effective in resisting high temperatures and has high heat transfer efficiency. However, SUS430 tends to rust in acidic water. Later, SUS444 / 316L materials were also used, but some sensitive individuals still find the metallic taste after prolonged use unbearable. Furthermore, the water pipes are often made of silicone, which easily absorbs odors and removes them when heated, potentially affecting drinking water safety and health. In addition, the water tank and vapor-liquid separator are usually made of plastic, which is prone to bacterial growth and unpleasant odors.

[0003] In addition, the production process requires a large number of silicone seals, connecting silicone tubes, cable ties, etc., which has problems such as complex assembly, high risk of water leakage, short service life and poor heat resistance. Long-term and large-scale use also poses risks such as water leakage, electric shock and bacterial growth. Utility Model Content

[0004] The first technical problem to be solved by this utility model is to provide a titanium alloy heating tube that can solve the odor problem compared with the above-mentioned prior art.

[0005] The two technical problems to be solved by this utility model are to provide an instant hot water dispenser that solves the problem of drinking water odor and at the same time ensures user safety and health.

[0006] The technical solution adopted by this utility model to solve the first technical problem mentioned above is as follows: a titanium alloy heating tube, including a tube body, a first end cap disposed at a first end of the tube body, and a second end cap disposed at a second end of the tube body. The first end cap is provided with an inlet pipe that communicates with the inner cavity of the tube body, and the second end cap is provided with an outlet pipe that communicates with the inner cavity of the tube body.

[0007] The tube body includes a stainless steel substrate, a heating layer disposed on the outer wall of the substrate, and a titanium tube layer disposed on the inner wall of the substrate.

[0008] Preferably, the thickness of the titanium tube layer is 0.05 mm to 0.5 mm.

[0009] Alternatively, the titanium tube layer is a pure titanium sheet hot-rolled onto the inner wall of a stainless steel substrate, and the thickness of the titanium tube layer is 0.05 mm to 0.25 mm; or

[0010] The titanium tube layer is a material layer formed by depositing a titanium target onto the inner wall of a stainless steel substrate using a PVD process, and the thickness of the titanium tube layer is 0.05 mm to 0.15 mm; or

[0011] The titanium tube layer is a pure titanium tube fixed to the inner wall of a stainless steel substrate using a press-fitting process, and the thickness of the titanium tube layer is 0.2mm to 0.5mm.

[0012] In order to obtain the inlet and outlet water temperatures more accurately and improve the accuracy of the outlet water temperature, a first temperature sensor is provided on the first end cap, and the temperature probe of the first temperature sensor extends into the pipe body.

[0013] The second end cap is equipped with a second temperature sensor, and the temperature probe of the second temperature sensor extends into the tube body.

[0014] In order to achieve rapid heating and precise temperature control of the first cup of water, a flow-blocking component made of titanium metal is provided along the axis inside the tube, and the flow-blocking component is at least partially in contact with the titanium tube layer.

[0015] Preferably, the flow-blocking component is a spiral component with the tube axis as the center line and attached to the titanium tube layer in a spiral extension.

[0016] The technical solution adopted by this utility model to solve the second technical problem mentioned above is as follows: an instant hot water dispenser, including a water tank, a vapor-liquid separator, and a titanium alloy heating tube as described above. The water tank is connected to the liquid inlet pipe in the titanium alloy heating tube through a connecting pipe, and the vapor-liquid separator is connected to the liquid outlet pipe in the titanium alloy heating tube.

[0017] The water tank and the gas-liquid separator both include a stainless steel body and a titanium material layer disposed on the inner wall of the stainless steel body, and the connecting pipe is a 304 / 316 stainless steel pipe.

[0018] Preferably, the vapor-liquid separator is provided with an external connecting pipe, which is connected to the liquid outlet pipe;

[0019] The outer connecting pipe is a 304 / 316 stainless steel pipe.

[0020] To enable quick installation and avoid odors from silicone sealant, ensuring user health, the outer pipe and outlet pipe have anti-detachment grooves on their free ends. The outer pipe is connected to the outlet pipe via a quick connector.

[0021] To facilitate quick installation and avoid odors from silicone sealant, ensuring user health, the water tank is equipped with a water supply pipe. The free ends of the water supply pipe and the liquid inlet pipe, as well as both ends of the connecting pipe, are provided with anti-detachment grooves. The two ends of the connecting pipe are connected to the water supply pipe and the liquid inlet pipe respectively via quick connectors.

[0022] Compared with existing technologies, the advantages of this invention are as follows: The titanium alloy heating tube in this invention has an internal titanium tube layer, which effectively solves the problem of metallic taste after prolonged water storage, improving the drinking experience and health. Furthermore, this titanium tube layer reduces limescale buildup, and limescale can be removed by cleaning agents such as citric acid. In addition, due to the titanium tube layer, the titanium alloy heating tube can not only heat purified water but also other liquids such as alcohol and liquids used in new energy applications, expanding the application range of the titanium alloy heating tube.

[0023] Instant hot water dispensers that use this titanium alloy heating element solve the problem of unpleasant odors in drinking water while ensuring user safety and health. Attached Figure Description

[0024] Figure 1 This is a water circuit connection diagram of the instant hot water dispenser in this embodiment of the present invention.

[0025] Figure 2 for Figure 1 The exploded diagram. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] like Figure 1 and Figure 2 As shown, the titanium alloy heating tube in this embodiment includes a tube body 1, a first end cap 2 disposed at the first end of the tube body 1, and a second end cap 3 disposed at the second end of the tube body 1. The first end cap 2 and the second end cap 3 seal both ends of the tube body 1. To facilitate liquid inlet and outlet of the tube body 1, the first end cap 2 is provided with an inlet pipe 21 communicating with the inner cavity of the tube body 1, and the second end cap 3 is provided with an outlet pipe 31 communicating with the inner cavity of the tube body 1. The first end cap 2, the second end cap 3, the inlet pipe 21, and the outlet pipe 31 can be connected by laser welding. In use, external liquid enters the tube body 1 through the inlet pipe 21, and the tube body 1, after being heated by the heating source, heats the liquid inside to the required temperature. The heated liquid is then output through the outlet pipe 31. In this embodiment, the tube body 1 includes a stainless steel base 11, a heating layer 10 disposed on the outer wall of the base 11, and a titanium tube layer 12 disposed on the inner wall of the base 11. The heating layer 10 can adopt an existing structure capable of heating, such as a metal heating wire wound around the base 11. After the metal heating wire is energized and heated, heat will be transferred to the stainless steel base 11 and the titanium tube layer 12. The first end cap 2 and the second end cap 3 are made of the same material as the base 11 and titanium tube layer 12 in the tube body 1.

[0028] The main component of the titanium tube layer 12 is titanium metal material. Based on different needs and production cost requirements, the titanium tube layer 12 can be processed and formed on the inner wall of the substrate using different existing processing methods.

[0029] In this embodiment, the thickness of the titanium tube layer 12 is 0.05 mm to 0.5 mm. The titanium tube layer 12 varies depending on different requirements and production cost needs, and different processing methods are required to form the titanium tube layer 12 based on these different thickness requirements.

[0030] In this embodiment, one of the following existing processing methods can be preferably used to process the titanium tube layer 12.

[0031] 1. The titanium tube layer 12 is a pure titanium sheet hot-rolled on the inner wall of the stainless steel substrate 11. During processing, the pure titanium sheet and the stainless steel substrate are hot-rolled into a titanium-stainless steel composite plate, and then welded under the action of a fixture to form a round tube with an inner layer of titanium. The thickness of the titanium tube layer 12 is 0.05mm to 0.25mm.

[0032] 2. The titanium tube layer 12 is a material layer on the inner wall of the stainless steel substrate 11 by depositing titanium target material onto the substrate using PVD process, wherein the thickness of the titanium tube layer 12 is 0.05mm to 0.15mm.

[0033] 3. The titanium tube layer 12 is a pure titanium tube fixed to the inner wall of the stainless steel substrate 11 by a press-fitting process, wherein the thickness of the titanium tube layer 12 is 0.2mm to 0.5mm.

[0034] To more accurately obtain the inlet and outlet water temperatures and improve the accuracy of the outlet water temperature, a first temperature sensor 22 is installed on the first end cap 2, with its temperature probe extending into the pipe body 1; a second temperature sensor 32 is installed on the second end cap 3, with its temperature probe extending into the pipe body 1. The first temperature sensor 22 is used to detect the inlet liquid temperature, and the second temperature sensor 32 is used to detect the outlet liquid temperature. The first and second temperature sensors 22 are directly integrated into the pipe body 1. Compared to the prior art where the temperature sensors are placed on the external water flow of the pipe body 1, this method provides timely and accurate temperature sensing and facilitates a simplified internal piping design.

[0035] In addition, a flow-blocking element 4 made of titanium metal is provided extending along the axis inside the tube body 1, and the flow-blocking element 4 is at least partially in contact with the titanium tube layer 12. On the one hand, the flow-blocking element 4 can absorb and store heat based on its contact with the titanium tube layer 12, increasing the heating heat of the liquid inside the tube body 1 and improving the heating rate of the liquid inside the tube body 1. On the other hand, the flow-blocking element 4 can slow down the flow velocity of the liquid inside the tube body 1 to a certain extent, allowing the liquid to fully exchange heat with the tube body 1 and the flow-blocking element 4, achieving rapid heating of the first cup of water, and at the same time, it can achieve high-precision temperature control within ±0.1℃ during operation.

[0036] In order to increase the contact area between the flow-blocking component 4 and the inner wall of the tube body 1, and also to improve the flow-blocking effect, the flow-blocking component 4 in this embodiment is a spiral component with the axis of the tube body 1 as the center line and attached to the titanium tube layer 12 in a spiral extension.

[0037] The titanium alloy heating tube of this utility model has a titanium tube layer 12 inside, which can effectively solve the problem of metallic taste after water is stored for a long time, improve the drinking experience and drinking health. In addition, the titanium tube layer 12 can reduce the adhesion of limescale. After limescale problems occur, it can be cleaned and restored with cleaning agents such as citric acid without causing corrosion to the tube body 1.

[0038] Furthermore, based on the titanium tube layer 12, this titanium alloy heating tube can not only heat pure water, but also heat other liquids such as alcohol and liquids used in new energy applications, thus expanding the application range of the titanium alloy heating tube. For example, this titanium alloy heating tube can be used in instant water dispensers, beverage machines, or other liquid heating equipment.

[0039] This embodiment relates to an instant hot water dispenser, including a water tank 5, a vapor-liquid separator 6, and the aforementioned titanium alloy heating tube. The water tank 5 is connected to the inlet pipe 21 of the titanium alloy heating tube via a connecting pipe 7, and the vapor-liquid separator 6 is connected to the outlet pipe 31 of the titanium alloy heating tube.

[0040] In this embodiment, both the water tank 5 and the vapor-liquid separator 6 include a stainless steel body and a titanium material layer disposed on the inner wall of the stainless steel body. The connecting pipe 7 is a 304 / 316 stainless steel pipe. An external pipe 61 is provided on the vapor-liquid separator 6, which is connected to the liquid outlet pipe 31; the external pipe 61 is a 304 / 316 stainless steel pipe.

[0041] To enable quick installation and avoid odors from silicone sealant, ensuring user health, the outer pipe 61 and the outlet pipe 31 are provided with anti-detachment grooves 8 on the outer periphery of their free ends. The outer pipe 61 is connected to the outlet pipe 31 via a quick connector 9.

[0042] To facilitate quick installation and avoid odors from silicone sealant, ensuring user health, a water supply pipe 51 is provided on the water tank 5. Anti-detachment grooves 8 are provided on the outer periphery of the free ends of the water supply pipe 51 and the liquid inlet pipe 21, as well as both ends of the connecting pipe 7. The two ends of the connecting pipe 7 are connected to the water supply pipe 51 and the liquid inlet pipe 21 respectively through quick connectors 9.

[0043] Based on this, the internal pipes of the instant hot water dispenser are all connected using quick connectors 9 in a rigid connection manner, which makes installation convenient and quick. It eliminates the need for silicone tubes, silicone seals and other parts, greatly reducing the use of nylon cable ties, solving the problem of drinking water odor, and ensuring user safety and health.

[0044] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of the invention. However, the use of these terms is merely for illustrative purposes and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this invention can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be considered as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A titanium alloy heating tube, characterized in that: It includes a tube body (1), a first end cap (2) provided at the first end of the tube body (1), and a second end cap (3) provided at the second end of the tube body (1). The first end cap (2) is provided with an inlet pipe (21) that communicates with the inner cavity of the tube body (1), and the second end cap (3) is provided with an outlet pipe (31) that communicates with the inner cavity of the tube body (1). The tube body (1) includes a stainless steel substrate (11), a heating layer (10) disposed on the outer wall of the substrate (11), and a titanium tube layer (12) disposed on the inner wall of the substrate (11).

2. The titanium alloy heating tube according to claim 1, characterized in that: The thickness of the titanium tube layer (12) is 0.05mm~0.5mm.

3. The titanium alloy heating tube according to claim 1 or 2, characterized in that: The first end cap (2) is provided with a first temperature sensor (22), and the temperature probe of the first temperature sensor (22) extends into the tube body (1); The second end cap (3) is provided with a second temperature sensor (32), and the temperature probe of the second temperature sensor (32) extends into the tube body (1).

4. The titanium alloy heating tube according to claim 1 or 2, characterized in that: A flow-blocking element (4) made of titanium metal is provided inside the tube body (1) along the axis, and the flow-blocking element (4) is at least partially in contact with the titanium tube layer (12).

5. The titanium alloy heating tube according to claim 4, characterized in that: The flow-blocking component (4) is a spiral component with the axis of the tube body (1) as the center line and attached to the titanium tube layer (12) in a spiral extension.

6. An instant hot water dispenser, comprising a water tank (5) and a vapor-liquid separator (6), characterized in that: It also includes a titanium alloy heating tube as described in any one of claims 1 to 5, wherein the water tank (5) is connected to the liquid inlet pipe (21) in the titanium alloy heating tube via a connecting pipe (7), and the vapor-liquid separator (6) is connected to the liquid outlet pipe (31) in the titanium alloy heating tube; The water tank (5) and the gas-liquid separator (6) both include a stainless steel body and a titanium material layer set on the inner wall of the stainless steel body, and the connecting pipe (7) is a 304 / 316 stainless steel pipe.

7. The instant hot water dispenser according to claim 6, characterized in that: The vapor-liquid separator (6) is provided with an external pipe (61), which is connected to the liquid outlet pipe (31); The outer pipe (61) is a 304 / 316 stainless steel pipe.

8. The instant hot water dispenser according to claim 7, characterized in that: The outer end of the external pipe (61) and the liquid outlet pipe (31) is provided with an anti-detachment groove (8). The external pipe (61) is connected to the liquid outlet pipe (31) through a quick connector (9).

9. The instant hot water dispenser according to claim 6, characterized in that: The water tank (5) is provided with a water supply pipe (51). The free ends of the water supply pipe (51), the liquid inlet pipe (21) and the two ends of the connecting pipe (7) are all provided with anti-detachment grooves (8). The two ends of the connecting pipe (7) are respectively connected to the water supply pipe (51) and the liquid inlet pipe (21) through quick connectors (9).

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