Steam heater for tea bar machine

Abstract

The utility model discloses a steam heater for a tea bar machine. The steam heater comprises a steam guide pipe (1), a circulating water sleeve (2) and a flow guide pipe (3), when the water heater is used, the lower end of the flow guide pipe is immersed into water to be heated, and the distance between the lower port of the steam guide pipe and the liquid level is kept to be larger than 10 mm; high-temperature steam is introduced into a steam inlet of the steam guide pipe, and circulating water is introduced into a circulating water inlet of the circulating water sleeve; high-temperature steam and circulating water are mixed and heated at the lower end of the flow guide pipe and impact a to-be-heated liquid surface to heat the to-be-heated liquid surface, and due to the arrangement of the air pressure balance hole, detonation noise cannot be generated in the heating process. The steam generator can effectively restrain detonation sound generated by mixing of hot steam and water, and reduces heating noise.

Description

Technical Field

[0001] The utility model relates to the technical field of tea bar machines, in particular to a steam heater for tea bar machines. Background Art

[0002] The tea bar machine is actually an upgraded water dispenser. It is a household appliance that combines a water dispenser and a tea stove. With the continuous upgrading of the functions of tea bar machines, multifunctional tea bar machines that integrate tea cup cleaning and disinfection are increasingly needed by users. The tea cup cleaning system of the existing multifunctional tea bar machine requires steam and hot water. In order to save energy, recycling the hot steam generated by the steam generator to heat the water to obtain hot water is an effective means to reduce energy consumption; but in actual experiments, it is found that directly introducing hot steam into the water through a conduit to heat the water will produce a harsh explosion sound. This noise in household appliances will obviously affect the user experience. Therefore, it is urgent to develop a steam heater that can effectively reduce noise. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent: to provide a steam heater which can effectively suppress the explosion sound produced by the mixing of hot steam and water and reduce the heating noise.

[0004] To this end, the purpose of the utility model is to provide a steam heater for a tea bar machine, including a steam conduit, a circulating water casing and a guide pipe;

[0005] The circulating water jacket is sleeved on the outer wall of the steam conduit; the upper end of the circulating water jacket is sealed with the outer wall of the steam conduit;

[0006] The guide pipe is sleeved on the outer wall of the circulating water casing; the upper end of the guide pipe is sealed with the outer wall of the circulating water casing;

[0007] The upper end of the steam conduit is provided with a steam inlet; the upper end of the circulating water casing is provided with a circulating water inlet;

[0008] The upper end of the flow guide pipe is provided with at least one air pressure balance hole.

[0009] As an optimization, the outer diameter of the steam conduit is smaller than the inner diameter of the circulating water jacket; the outer diameter of the circulating water jacket is smaller than the inner diameter of the guide pipe.

[0010] As an optimization, the steam conduit, circulating water casing and guide pipe are coaxially arranged.

[0011] As an optimization, the lower ports of the steam conduit and the circulating water jacket are both located inside the guide pipe.

[0012] As an optimization, the distance from the lower end of the steam conduit to the lower end of the draft tube is smaller than the distance from the lower end of the circulating water jacket to the lower end of the draft tube.

[0013] As an optimization, the difference between the inner diameter of the circulating water jacket and the outer diameter of the steam conduit is 10-20 mm; the difference between the inner diameter of the guide pipe and the outer diameter of the circulating water jacket is 10-30 mm.

[0014] As an optimization, the air pressure balance hole is arranged on the top wall of the upper end of the guide tube; the air pressure balance hole communicates with the gap between the inner wall of the guide tube and the outer wall of the circulating water casing.

[0015] The utility model has the following beneficial effects: when the utility model is used, the lower end of the flow guide pipe is immersed in the water to be heated, and the lower end of the steam conduit is kept at a distance of more than 10 mm from the liquid surface; high-temperature steam is introduced into the steam inlet of the steam conduit, and circulating water is introduced into the circulating water inlet of the circulating water sleeve; the high-temperature steam and the circulating water are mixed and heated at the lower end of the flow guide pipe and impact the liquid surface to be heated to heat it, and due to the setting of the air pressure balance hole, the heating process does not generate explosion noise. The utility model can effectively suppress the explosion sound generated by the mixing of hot steam and water, and reduce the heating noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the steam heater for the tea bar machine in the embodiment.

[0017] Figure 2 It is a schematic cross-sectional structure diagram of the steam heater for the tea bar machine in the embodiment.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the steam heater for the tea bar machine in the embodiment.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the steam heater for the tea bar machine in the embodiment.

[0020] Figure 5 It is a schematic diagram of the three-dimensional cross-sectional structure of the steam heater for the tea bar machine in the embodiment.

[0021] Figure 6 Schematic diagram of the use status of the steam heater for the tea bar machine in the embodiment.

[0022] Among them, 1. steam duct; 11. steam inlet; 2. circulating water casing; 21. circulating water inlet; 3. guide pipe; 31. air pressure balance hole. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention. Example

[0024] Now combined Figure 1-6 A steam heater for a tea bar machine is described, comprising a steam duct 1, a circulating water jacket 2 and a guide pipe 3; the circulating water jacket 2 is sleeved on the outer wall of the steam duct 1; the upper end of the circulating water jacket 2 is sealed with the outer wall of the steam duct 1; the guide pipe 3 is sleeved on the outer wall of the circulating water jacket 2; the upper end of the guide pipe 3 is sealed with the outer wall of the circulating water jacket 2; the upper end of the steam duct 1 is provided with a steam inlet 11; the upper end of the circulating water jacket 2 is provided with a circulating water inlet 21; the upper end of the guide pipe 3 is provided with two air pressure balance holes 31.

[0025] The outer diameter of the steam conduit 1 is smaller than the inner diameter of the circulating water jacket 2 ; the outer diameter of the circulating water jacket 2 is smaller than the inner diameter of the flow guide pipe 3 .

[0026] The steam conduit 1 , the circulating water jacket 2 and the flow guide pipe 3 are coaxially arranged.

[0027] The lower ports of the steam conduit 1 and the circulating water jacket 2 are both located inside the flow guide pipe 3 .

[0028] The distance from the lower end of the steam conduit 1 to the lower end of the draft tube 3 is smaller than the distance from the lower end of the circulating water jacket 2 to the lower end of the draft tube 3. That is, the lower end of the steam conduit 1 is closer to the lower end of the draft tube 3 than the lower end of the circulating water jacket 2.

[0029] The difference between the inner diameter of the circulating water jacket 2 and the outer diameter of the steam conduit 1 is 20 mm; the difference between the inner diameter of the flow guide pipe 3 and the outer diameter of the circulating water jacket 2 is 20 mm.

[0030] The air pressure balance hole 31 is arranged on the top wall of the upper end of the flow guide pipe 3 ; the air pressure balance hole 31 communicates with the gap between the inner wall of the flow guide pipe 3 and the outer wall of the circulating water jacket 2 .

[0031] like Figure 6The application example of the steam heater for a tea bar machine is shown. The lower end of the flow guide tube 3 is immersed in the water to be heated, and the lower end of the steam conduit 1 is kept greater than 10 mm from the liquid surface; high-temperature steam is introduced into the steam inlet 11 of the steam conduit 1, which can be achieved by connecting the steam inlet 11 with the output end of the high-temperature steam generator; circulating water is introduced into the circulating water inlet 21 of the circulating water jacket 2, which can be achieved by pumping the water to be heated into the circulating water inlet 21 by a water pump. The high-temperature steam and the circulating water are mixed and heated at the lower end of the flow guide tube 3 and impact the liquid surface to be heated to heat it. Due to the setting of the air pressure balance hole 31, the heating process will not produce explosion noise. If the air pressure balance hole 31 is blocked, explosion noise will still be produced.

[0032] Test experiment

[0033] Block all the air pressure balance holes 31, keep other conditions the same to set up a comparative experiment, use a decibel meter to keep a distance of 25cm from the steam heater to test the decibel of heating noise; the noise values ​​of the group of blocked air pressure balance holes 31 and the group of open air pressure balance holes 31 are as follows:

[0034] Experimental Group Environmental noise Working noise Block the air pressure balance hole group 58 dB 75 dB Open air pressure balance hole group 58 dB 60 dB

[0035] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

[0036] For those skilled in the art, various changes and modifications will undoubtedly be obvious after reading the above description. Therefore, the attached claims should be regarded as covering all changes and modifications to the true intent and scope of the utility model. Any and all equivalent ranges and contents within the scope of the claims should be considered to still be within the intent and scope of the utility model.

Claims

1. A steam heater for a tea bar machine, characterized in that: It comprises a steam conduit (1), a circulating water casing (2) and a flow guide pipe (3); The circulating water jacket (2) is sleeved on the outer wall of the steam conduit (1); the upper end of the circulating water jacket (2) is sealed with the outer wall of the steam conduit (1); The flow guide pipe (3) is sleeved on the outer wall of the circulating water casing (2); the upper end of the flow guide pipe (3) is sealed with the outer wall of the circulating water casing (2); The upper end of the steam conduit (1) is provided with a steam inlet (11); the upper end of the circulating water casing (2) is provided with a circulating water inlet (21); At least one air pressure balance hole (31) is provided at the upper end of the flow guide tube (3).

2. The steam heater for a tea bar machine according to claim 1, characterized in that: The outer diameter of the steam conduit (1) is smaller than the inner diameter of the circulating water jacket (2); and the outer diameter of the circulating water jacket (2) is smaller than the inner diameter of the flow guide pipe (3).

3. The steam heater for a tea bar machine according to claim 2, characterized in that: The steam conduit (1), the circulating water jacket (2) and the flow guide pipe (3) are coaxially arranged.

4. The steam heater for a tea bar machine according to claim 3, characterized in that: The lower ports of the steam conduit (1) and the circulating water jacket (2) are both located inside the flow guide pipe (3).

5. The steam heater for a tea bar machine according to claim 4, characterized in that: The distance from the lower end of the steam conduit (1) to the lower end of the flow guide pipe (3) is smaller than the distance from the lower end of the circulating water jacket (2) to the lower end of the flow guide pipe (3).

6. The steam heater for a tea bar machine according to claim 2, characterized in that: The difference between the inner diameter of the circulating water jacket (2) and the outer diameter of the steam conduit (1) is 10-20 mm; the difference between the inner diameter of the flow guide pipe (3) and the outer diameter of the circulating water jacket (2) is 10-30 mm.

7. The steam heater for a tea bar machine according to claim 6, characterized in that: The air pressure balance hole (31) is arranged on the top wall of the upper end of the flow guide tube (3); the air pressure balance hole (31) communicates with the gap between the inner wall of the flow guide tube (3) and the outer wall of the circulating water jacket (2).

Images