Multi-stage water heating device with top water inlet and outlet

Abstract

Disclosed in the present utility model is a multi-stage water heating device with a top water inlet and outlet. The multi-stage water heating device comprises a first heating cavity, wherein at least one second heating cavity is formed side by side on the side of the first heating cavity, heaters are axially inserted into a lower end of the first heating cavity and a lower end of the second heating cavity, a first water connection base is mounted at an upper end of the first heating cavity, one end of the first water connection base is connected to a water inlet pipe, a second water connection base is mounted at an upper end of each second heating cavity, the first water connection base is connected to the adjacent second water connection base by means of a bypass pipe, the upper ends of the second heating cavities are connected to each other by inserting the second water connection bases with each other, the lower end of the first heating cavity is in communication with each second heating cavity by means of a side communicating pipe, and the second water connection base on the last second heating cavity in a water flow direction is in communication with a water outlet pipe. The present utility model can solve the problems of overheating due to water outage and local overheating and drying out of an existing multi-stage water heating device.

Description

A multi-unit hot water system with top inlet and outlet

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202420946586.X, filed on May 6, 2024, entitled "A Multi-Unit Hot Water Device with Top Inlet and Outlet", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This utility model relates to the field of instant water heaters, specifically a multi-unit hot water device with top inlet and outlet. Background Technology

[0004] Water heaters are common household appliances, especially instant water heaters, which provide instant hot water and are very convenient. Instant water heaters heat water quickly, and since the water is constantly flowing, the hot water coming out of the outlet pipe won't overheat when the water supply is uninterrupted. However, if the water supply is interrupted during use, the water temperature may rise excessively after the water is restored, potentially causing scalding. Furthermore, most existing water heaters have a top outlet rather than a central outlet, which can prevent the complete discharge of hot water and gas from the top of the heating chamber, posing a risk of localized overheating or dry burning.

[0005] Utility Model Content

[0006] This utility model provides a multi-unit hot water device with top inlet and outlet, which solves the problems of overheating during water outages and localized overheating and drying out that occur in existing multi-unit water heaters.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-unit hot water device with top inlet and outlet, comprising a first heating chamber, at least one second heating chamber arranged side-by-side on the side of the first heating chamber, heaters axially inserted into the lower ends of both the first and second heating chambers, a first water inlet connector mounted on the upper end of the first heating chamber, one end of the first water inlet connector connected to a water inlet pipe, and a second water inlet connector mounted on the upper end of each of the second heating chambers, wherein the first water inlet connector and the adjacent second water inlet connector are connected by a bypass pipe. The upper ends of the second heating chambers are connected to each other via second water-connecting seats. The lower end of the first heating chamber is connected to each second heating chamber via a side connecting pipe. The second water-connecting seat on the last second heating chamber along the water flow direction is connected to the water outlet pipe, allowing water to exit from the top. This prevents local overheating or dry burning in the second heating chamber. The bypass pipe can allow some of the incoming cold water to be introduced into the heated hot water, reducing the temperature rise during water shut-off and preventing scalding. It can also expel gas from the first heating chamber, preventing local overheating or dry burning in the first heating chamber.

[0008] Preferably, the heater includes a mounting base extending axially into the first heating chamber and the second heating chamber, and a heating tube connected to the mounting base.

[0009] Preferably, the sides of the mounting base are provided with connecting pipes extending tangentially along the circumference. The connecting pipe is connected to the connecting pipe, and the water flow in the second heating chamber can be spiraled by tangential water inlet, which can reduce the formation of scale and extend the service life.

[0010] Preferably, the mounting base is connected to the lower end of the first heating chamber or the second heating chamber by an axially arranged screw, and a sealing ring is fitted on the outer circumference of the mounting base to contact the inner wall of the first heating chamber or the second heating chamber, which provides a good sealing effect and makes the mounting base easy to install and remove.

[0011] Preferably, the inner diameter of the bypass pipe is smaller than the inner diameters of the first and second water connection seats, and the inner diameter of the bypass pipe is less than half the inner diameter of the connecting pipe. The inner diameters of the first, second, and connecting pipes are approximately equal. This ensures that the water flow through the bypass pipe is less than the water flow entering or exiting the first or second heating chamber.

[0012] Preferably, both the inlet pipe and the outlet pipe extend towards the lower end of the first heating chamber for easy installation.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The multi-unit heating chamber structure can be added or removed as needed. The top-inlet and bypass pipe design, along with the top outlet, prevents localized overheating or dry burning in the first and second heating chambers. A bypass pipe allows some of the incoming cold water to be diverted into the heated hot water, reducing the temperature rise during water shut-off and preventing scalding. The heater has excellent sealing, and the swirling water flow in both the first and second heating chambers accelerates the flow rate and reduces scale buildup. Attached Figure Description

[0015] Figure 1 is a front view of the first embodiment of this utility model;

[0016] Figure 2 is a front sectional view of the first embodiment of the present invention;

[0017] Figure 3 is a bottom view of the structure of the first embodiment of this utility model;

[0018] Figure 4 is a partial structural view of Figure 3 in section AA;

[0019] Figure 5 is a front view of the second embodiment of this utility model;

[0020] Figure 6 is a front sectional view of the second embodiment of this utility model;

[0021] Figure 7 is a sectional view along the BB direction of Figure 5;

[0022] Figure 8 is a front view of the third embodiment of this utility model;

[0023] Figure 9 is a front sectional view of the third embodiment of this utility model. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] As shown in Figures 1-9, this utility model provides a multi-unit hot water device with top inlet and outlet, including a first heating chamber 1. At least one second heating chamber 2 is arranged side-by-side on the side of the first heating chamber 1. A heater 9 is axially inserted into the lower end of both the first heating chamber 1 and the second heating chamber 2. A first water inlet connector 6 is installed at the upper end of the first heating chamber 1, and one end of the first water inlet connector 6 is connected to a water inlet pipe 3. A second water inlet connector 8 is installed at the upper end of each of the second heating chambers 2. The first water inlet connector 6 is connected to the adjacent second water inlet connector. The seats 8 are connected by a bypass pipe 7. The upper ends of the second heating chambers 2 are all connected to each other by a second water-passing connector 8. The lower end of the first heating chamber 1 is connected to each of the second heating chambers 2 by a side connecting pipe 5. The second water-passing connector 8 on the last second heating chamber 2 along the water flow direction is connected to the water outlet pipe 4. Water enters and exits from the top, avoiding local overheating or dry burning of the first heating chamber 1 and the second heating chamber 2. The bypass pipe 7 can pass some of the cold water into the heated hot water, which can reduce the water shut-off temperature rise and prevent scalding.

[0026] Specifically, the first heating chamber 1 and the adjacent second heating chamber 2 are connected in series, while the multiple second heating chambers 2 are connected in parallel. Water from the first heating chamber 1 simultaneously enters multiple second heating chambers 2 for heating, resulting in high heating efficiency. The first water inlet connector 6 and the second water inlet connector 8 are T-joints. Both the inlet pipe 3 and the outlet pipe 4 extend towards the lower end of the first heating chamber 1 for easy installation.

[0027] Figure 1-4 shows a structure in which the first heating chamber 1 is connected in series with one second heating chamber 2; Figure 5-7 shows a structure in which the first heating chamber 1 is connected in series with two parallel second heating chambers 2; Figure 8-9 shows a structure in which the first heating chamber 1 is connected in series with three parallel second heating chambers 2.

[0028] The bypass pipe 7 can be used as part of the first water connection seat 6 and inserted into the adjacent second water connection seat 8 to achieve communication. The inner diameter of the bypass pipe 7 is smaller than the inner diameter of the first water connection seat 6 and the second water connection seat 8. The inner diameter of the bypass pipe (7) is smaller than 1 / 2 the inner diameter of the connecting pipe (5). The inner diameters of the first water connection seat (6), the second water connection seat (8) and the connecting pipe (5) are equivalent. This allows the water flow through the bypass pipe 7 to be less than the water flow in and out of the first heating chamber 1 or the second heating chamber 2. When water enters through the inlet pipe 3, most of it will flow into the first heating chamber 1, and a small portion will enter the adjacent second water connection seat 8 through the bypass pipe 7 to the hot water that has been heated twice. Thus, the second heating chamber 2 enters water from the first heating chamber 1 through the connecting pipe (5), and the hot water that has been heated twice flows into the outlet pipe 4 together with the water flow through the second water connection seat 8 and the bypass pipe 7. Alternatively, the hot water that has been heated twice flows into the outlet pipe 4 together with the water flow through the second water connection seat 8 and the bypass pipe 7 and the water flow through another second water connection seat 8.

[0029] In this embodiment, the heater 9 includes a mounting base 11 extending axially into the first heating chamber 1 and the second heating chamber 2, and a heating tube 13 connected to the mounting base 11. The heating tube 13 and the mounting base 11 are integrally connected and are inserted into the first heating chamber 1 and the second heating chamber 2 together during installation. To ensure sealing performance, the mounting base 11 is connected to the lower end of the first heating chamber 1 or the second heating chamber 2 by an axially arranged screw 12. A sealing ring 10 is fitted on the outer circumference of the mounting base 11, which contacts the inner wall of the first heating chamber 1 or the second heating chamber 2, resulting in good sealing effect. The mounting base 11 is easy to install and remove. The screw 12 can be set on both sides of the mounting base 11 to press and fix the mounting base 11. The sealing ring 10 can be an O-ring or a sealing ring of other shapes, resulting in good overall sealing effect.

[0030] In this embodiment, as shown in FIG7, the side of the mounting base 11 is provided with a connecting head 14 extending tangentially along the circumference. The connecting pipe 5 is connected to the connecting head 14. The water flow in the second heating chamber 2 through the tangential water inlet can flow in a spiral shape, which can reduce the formation of scale and extend the service life.

[0031] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0032] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. A multi-unit hot water system with top inlet and outlet, characterized in that: include: The first heating chamber (1) has at least one second heating chamber (2) arranged side by side on its side. The lower ends of the first heating chamber (1) and the second heating chamber (2) are axially inserted with heaters (9). The upper end of the first heating chamber (1) is equipped with a first water-passing connector (6). One end of the first water-passing connector (6) is connected to the water inlet pipe (3). The upper ends of the second heating chambers (2) are all equipped with second water-passing connectors (8). The first water-passing connector (6) and the adjacent second water-passing connectors (8) are connected by a bypass pipe (7). The upper ends of the second heating chambers (2) are all connected to each other by the second water-passing connectors (8). The lower end of the first heating chamber (1) is connected to each second heating chamber (2) through a connecting pipe (5) on its side. The second water-passing connector (8) on the last second heating chamber (2) along the water flow direction is connected to the water outlet pipe (4).

2. The multi-unit hot water device with top inlet and outlet as described in claim 1, characterized in that: The heater (9) includes a mounting base (11) extending axially into the first heating chamber (1) and the second heating chamber (2) and a heating tube (13) connected to the mounting base (11).

3. The multi-unit hot water device with top inlet and outlet as described in claim 2, characterized in that: The mounting base (11) has a connecting head (14) extending tangentially along its side, and the connecting pipe (5) is connected to the connecting head (14).

4. The multi-unit hot water device with top inlet and outlet as described in claim 2, characterized in that: The mounting base (11) is connected to the lower end of the first heating chamber (1) or the second heating chamber (2) by an axially arranged screw (12). A sealing ring (10) is sleeved on the outer circumference of the mounting base (11) and contacts the inner wall of the first heating chamber (1) or the second heating chamber (2).

5. The multi-unit hot water device with top inlet and outlet as described in claim 1, characterized in that: The inner diameter of the bypass pipe (7) is smaller than the inner diameter of the first water connection seat (6) and the second water connection seat (8).

6. The multi-unit hot water device with top inlet and outlet as described in claim 1, characterized in that: The water inlet pipe (3) and water outlet pipe (4) both extend towards the lower end of the first heating chamber (1).

7. The multi-unit hot water device with top inlet and outlet as described in claim 5, characterized in that: The inner diameter of the bypass pipe (7) is less than 1 / 2 the inner diameter of the connecting pipe (5), and the inner diameters of the first water connection seat (6), the second water connection seat (8), and the connecting pipe (5) are equivalent.

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